| C | or Ceiling limit | | | | Details |
| c | center | | | | Details |
| C | Core Hole | | | | Details |
| C | Casing | | | | Details |
| C | Celsius | | | | Details |
| C | center(land description) | | | | Details |
| C | centigrade | | | | Details |
| c | coarse(ly) | | | | Details |
| C | Construction | | | | Details |
| C | Center Jet | | | | Details |
| c | critical | | | | Details |
| C | C Konserviert | | | | Details |
| C | Channel | | | | Details |
| C | Commercial | | | | Details |
| C | Connection | | | | Details |
| C | coulomb | | | | Details |
| c | revolution (cycle) | | | | Details |
| C | Construction | | | | Details |
| LRMC | Long Run Marginal Cost|| | Long Run Marginal Cost | Long Run Marginal Cost | Long Run coût marginal | Details |
| JICA | Japan International Cooperation Agency|| | Japan International Cooperation Agency | Japan International Cooperation Agency | Agence japonaise de coopération internationale | Details |
| CFO | Chief Financial Officer|| | Chief Financial Officer | Chief Financial Officer | Directeur financier | Details |
| CEO | Chief Executive Officer|| | Chief Executive Officer | Geschäftsführer | Directeur Général | Details |
| COO | Chief Operating Officer|| | Chief Operating Officer | Chief Operating Officer | Chief Operating Officer | Details |
| CAO | Chief Accounting Officer|| | Chief Accounting Officer | Chief Accounting Officer | Chief Accounting Officer | Details |
| CAO | Chief Administrative Officer|| | Chief Administrative Officer | Chief Administrative Officer | Directeur administratif | Details |
| CAO | Chief Analytics Officer|| | Chief Analytics Officer | Chief Analytics Officer | Chief Analytics Officer | Details |
| CTO | Chief Transformation Officer|| | Chief Transformation Officer | Chef Transformation Offizier | Chef de la Transformation | Details |
| Bleiabdruck | Impression Block|| | impression block | Eindruck Block | bloc d'impression | Details |
| ECT | Engineering, Completion & Testing|| | Engineering, Completion & Testing | Ingenieurwesen, Completion & Testing | Ingénierie, achèvement et d'essais | Details |
| COM | Chance Of Maturation|| | Chance Of Maturation | Chance Reife | Chance Of Maturation | Details |
| Phc | Hydrocarbon Chance|| | Hydrocarbon chance | Kohlenwasserstoff-Chance | Hydrocarbon occasion | Details |
| Prc | Recovery Chance|| | Recovery chance | Recovery-Chance | chances de récupération | Details |
| Psc | Skills & Technology Chance|| | Skills & Technology chance | Skills & Technik Chance | Compétences et chances Technologie | Details |
| Pac | Authorization & Market Chance|| | Authorization & Market opportunity | Authorization & Market Gelegenheit | Autorisation et marché occasion | Details |
| COF | Cost of Failure|| | Cost of Failure | Kosten des Scheiterns | Coût de l'échec | Details |
| CSRA | Cost & Schedule Risk Analysis|| | Cost & Schedule Risk Analysis | Cost & Schedule Risk Analysis | Coût et calendrier Analyse des risques | Details |
| recov | Recoverable|| | Recoverable | Behebbarer | récupérable | Details |
| Co | Compressibility of Oil|| | Compressibility of Oil | Kompressibilität von Öl | Compressibilité du pétrole | Details |
| Cw | Compressibility of Water|| | Compressibility of Water | Kompressibilität von Wasser | Compressibilité de l'eau | Details |
| Cg | Compressibility of Gas|| | Compressibility of gas | Kompressibilität von Gas | Compressibilité de gaz | Details |
| DEC | Drilling Engineering Center|| | Drilling Engineering Center | Drilling Engineering Center | Drilling Engineering Center | Details |
| DEC | Drilling Engineering Coordinator|| | Drilling Engineering Coordinator | Bohrtechnik Coordinator | Coordonnateur de forage Ingénierie | Details |
| CEF | Connecting Europe Facility|| | Connecting Europe Facility | Connecting Europe | L'interconnexion en Europe | Details |
| FCO | Foreign Company|| | Foreign Company | Ausländische Firma | Entreprise étrangère | Details |
| CC | Control Cabin|| | Control Cabin | Steuerkabine | cabine de contrôle | Details |
| LCF | low cycle fatigue|| | low cycle fatigue | LCF | fatigue oligocyclique | Details |
| COD | coefficient of determination|| | coefficient of determination | Bestimmtheitsmaß | coefficient de détermination | Details |
| AECV | additional emergency control valve|| | additional emergency control valve | zusätzliche Notfall-Regelventil | soupape de commande d'urgence supplémentaire | Details |
| $/scf | U.S. dollars per standard cubic feet | | | | Details |
| µg/dscm | micrograms per dry standard cubic meter | | | | Details |
| 2CAL | 2-Arm Caliper Log | | | | Details |
| 2CEX | 2-Arm Caliper Log (Extended Reach) | | | | Details |
| 3C | three components seismic acquisition (x, y and z) | | | | Details |
| 3CAL | 3-Arm Caliper Log | | | | Details |
| 4C | Four Channel | | | | Details |
| 4CAL | 4-Arm Caliper Log | | | | Details |
| 4CEX | 4-Arm Caliper Log (Extended Reach) | | | | Details |
| A CHL | Atlantic Chlorinlog | | | | Details |
| A/C | air conditioning | | | | Details |
| A/CLD | air cooled | | | | Details |
| A/CLR | air cooler | | | | Details |
| AACT | Aluminium Clay Tool | | | | Details |
| AACT | Aluminium Activation Clay Tool | | | | Details |
| AAODC | American Association of Oilwell Drilling Contractors (obsolete; superseded by IADC) | | | | Details |
| AAODC | American Association of Oilwell Drilling Contractors | | | | Details |
| AAODC | See IADC | | | | Details |
| ABC | Analysis Behind Casing (using CHDT) | | | | Details |
| ABC | Audit Bureau of Circulation | | | | Details |
| ABCM | Activity Based Costing Model | | | | Details |
| abd loc | abandoned location | | | | Details |
| A-BHC | Amplitude Logging | | | | Details |
| AC | Alternative Current | | | | Details |
| AC | BHC Acoustilog | | | | Details |
| AC | ANTIGUA AND BARBUDA | | | | Details |
| ac | acre, acres | | | | Details |
| ac | acid | | | | Details |
| ac | acre(s), acreage | | | | Details |
| AC | alternating current | | | | Details |
| AC | Austin chalk | | | | Details |
| AC | Acoustilog | | | | Details |
| AC PAR 16 | Acoustic Parameter-16mm Scope | | | | Details |
| AC PAR D | Acoustic Parameter-Depth | | | | Details |
| AC PAR L | Acoustic Parameter-Logging | | | | Details |
| AC SIGN | Acoustic Signature | | | | Details |
| AC/CAL | Acoustilog Caliper Gamma Ray Neutron | | | | Details |
| AC/CAL | BHC Acoustilog Caliper | | | | Details |
| AC/CAL | BHC Acoustilog Caliper (Thru Casing) | | | | Details |
| AC/CAL GR | Acoustilog Caliper Gamma Ray | | | | Details |
| AC/CAL NEU | Acoustilog Caliper Neutron | | | | Details |
| AC/CAL/ | BHC Acoustilog Caliper G/R Neutron | | | | Details |
| AC/CAL/GR | BHC Acoustilog Caliper Gamma Ray | | | | Details |
| AC/NUE | BHC Acoustilog Caliper Neutron | | | | Details |
| ACA | after closure analysis; a fracture performance test method | | | | Details |
| ACAL | AcoustiCaliper | | | | Details |
| ACC | access | | | | Details |
| ACCEL | accelerometers | | | | Details |
| ACCESS | accessory, accessories | | | | Details |
| ACCR | Accelerometer Corrections Preprocessing (CIBLSM PREP) | | | | Details |
| acct | account(ing) | | | | Details |
| accum | accumulative, accumulator | | | | Details |
| acd | acidize(ed)(ing) | | | | Details |
| ACDS | Axilary compression tension sub | | | | Details |
| ACE | Acoustic Caliber Log | | | | Details |
| A-Cem | acoustic cement | | | | Details |
| ACFM | actual cubic feet per minute | | | | Details |
| acfr | acid fracture treatment | | | | Details |
| ac-ft | acre-feet | | | | Details |
| ACGIH | American Conference of Industrial Hygienists | | | | Details |
| ACHE | Air Cooled Heat Exchanger | | | | Details |
| ACL | Access Control List | | | | Details |
| ACL | Long-Spaced BHC Acoustilog | | | | Details |
| ACLR | air cooler | | | | Details |
| ACM | acid-cut mud | | | | Details |
| ACMP | Alaska Costal Management Program | | | | Details |
| ACNA | Aziende Colori Nazionali Affini Italy | | | | Details |
| ACOU | Acoustic | | | | Details |
| ACP | Annulus Casing Packers | | | | Details |
| ACP | Area Contingency Plan | | | | Details |
| ACP | Acoustic Parameter | | | | Details |
| ACP | Association des Consultants Petroliers France | | | | Details |
| ACPA | Alexandria Co. for Petroleum Additives Egypt | | | | Details |
| ACPHA | Association Cooperative pour la Recherche et l’Exploration des Hydrocarbures en Algerie Algeria | | | | Details |
| ACQ | Annual Contract Quantity (in reference to gas sales) | | | | Details |
| ACQU | Acquisition log | | | | Details |
| acrg | acreage | | | | Details |
| ACRONYMS | AND ABBREVIATIONSAC–4 PRUDENT DEVELOPMENT: Realizing the Potential of North America’s Abundant Natural Gas and Oil Resources | | | | Details |
| ACS | Anti Collision System | | | | Details |
| ACS | American Chemical Society | | | | Details |
| acs | acre, acres | | | | Details |
| ACSL | Acoustic | | | | Details |
| ACSR | aluminum conductor steel reinforced | | | | Details |
| ACT | Geochemical Logging Tool | | | | Details |
| ACT | Action | | | | Details |
| ACT | actual | | | | Details |
| ACT | actuated, actuator | | | | Details |
| ACT | automatic custody transfer | | | | Details |
| ACT | Aluminum Clay Log | | | | Details |
| ACT | Geochemical Log | | | | Details |
| ACTS | Auxiliary Compression Tension Sub | | | | Details |
| ACV | Approved/Authorized Contract Value | | | | Details |
| ACV | Adjustable Choke Valve | | | | Details |
| ACV | Automatic Control Valve (actuator valves on the separator) | | | | Details |
| ACV | annular safety valve | | | | Details |
| ACW | acid-cut water | | | | Details |
| ADC | Advanced Gauge Data Conditioning (Pansystem software) | | | | Details |
| ADC | Analog-to-Digital Converter | | | | Details |
| ADC | actual drilling cost | | | | Details |
| ADCO | Abu Dhabi Company for Onshore Oil Operations | | | | Details |
| ADCO | Abu Dhabi Co. for Onshore Oil Operations Abu Dhabi | | | | Details |
| ADCOM | ADress COMission | | | | Details |
| ADDC | Association of Desk and Derrick Clubs | | | | Details |
| ADDCAP | Abu Dhabi Drilling Chemicals and Products Ltd. Abu Dhabi | | | | Details |
| ADESCO | Abu Dhabi Emergency Committee of Offshore Operators | | | | Details |
| ADIPEC | Abu Dhabi International Petroleum Conference | | | | Details |
| ADMA-OPCO | Abu Dhabi Marine Operating Co. Abu Dhabi | | | | Details |
| ADNATCO | Abu Dhabi National Tanker Co. Abu Dhabi | | | | Details |
| ADNOC | Abu Dhabi National Oil Company Abu Dhabi | | | | Details |
| ADNOC-FOD | Abu Dhabi National Oil Company for Distribution Abu Dhabi | | | | Details |
| ADPC | Abu Dhabi Petroleum Company | | | | Details |
| ADPC | Abu Dhabi Petroleum Co. Ltd. Abu Dhabi | | | | Details |
| ADPPOC | Abu Dhabi Petroleum Ports Operating Co. Abu Dhabi | | | | Details |
| ADROC | Advanced Rock Properties Report | | | | Details |
| ADSC | Abu Dhabi Shipbuilding Company | | | | Details |
| ADSC | The International Association of Foundation Drilling | | | | Details |
| AEC | Anion Exchange Capacity (see comment) | | | | Details |
| AEC | Abu Dhabi Engineering Center | | | | Details |
| AEC | Atomic Energy Commission | | | | Details |
| AECRB | Alberta Energy Conservation Resources Board | | | | Details |
| AF/CLR | after cooler | | | | Details |
| AF/COND | after condenser | | | | Details |
| AFC | Approved For Construction | | | | Details |
| AFC | Arab Finance Corporation | | | | Details |
| AFC | Authorization for Commitment | | | | Details |
| AFC | Authorized for Construction | | | | Details |
| AFPC | Al-Furat Petroleum Company | | | | Details |
| AFPC | Al Forat Petroleum Company Syria and others | | | | Details |
| AFUDC | allowance for funds used during construction | | | | Details |
| AGC | Automatic Gain Control | | | | Details |
| AGC | Advanced Gas Conversion | | | | Details |
| aGOC | Actual Gas Oil Contact | | | | Details |
| AGOC | Aramco Gulf Operations Co. Ltd. Saudi Arabia | | | | Details |
| Agoco | Arabian Gulf Oil Company | | | | Details |
| AGOCO | Arabian Gulf Oil Company Libya | | | | Details |
| AGTC | Agarwal-Gardner Type-Curves | | | | Details |
| AICHE | American Institute of Chemical Engineers | | | | Details |
| AIOC | Azerbaijan International Operating Company | | | | Details |
| AIPAC | American Israeli Public Affairs Committee | | | | Details |
| ALC | Vertical Seismic Profile Acoustic Log Calibration Report | | | | Details |
| ALC | Agricultural Land Commission (see comment) | | | | Details |
| alc | alcoholic | | | | Details |
| ALC | Acoustilog | | | | Details |
| ALC-GR | Acoustilog Caliper-Gamma Ray | | | | Details |
| ALC-GRN | Acoustilog Caliper-Gamma Ray-Neutron | | | | Details |
| ALC-N | Acoustilog Caliper-Neutron | | | | Details |
| ALCOA | Aluminum Company of America | | | | Details |
| ALEPCO | Ste. Algero-Arab-Libyenne d’Exploitation et de Production des Produits Petroliers Algeria | | | | Details |
| ALICO | American Life Insurance Company | | | | Details |
| ALOC | allocation | | | | Details |
| AMPTC | Arab Maritime Petroleum Transport Co. OAPEC | | | | Details |
| ANACO | Analysis of Core Logs Report | | | | Details |
| ANC | Anchor(age) | | | | Details |
| ANCAP | Administracion Nacional de Combustibles, Alcohol y Portland Uruguay | | | | Details |
| ANISC | Alexandria National Iron and Steel Company | | | | Details |
| ANPC | Afghan National Petroleum Co. Afghanistan | | | | Details |
| ANUC | annunciator | | | | Details |
| AOAC | Association of Official Agricultural Chemists | | | | Details |
| AOC | Arabian Oil Company | | | | Details |
| AOC | Aramco Overseas Company | | | | Details |
| AOC | Arabian Oil Company Ltd. Japan | | | | Details |
| AOC | Aramco Overseas Company Netherlands, China, Korea | | | | Details |
| AOCS | American Oil Chemists Society | | | | Details |
| AOSC | Association of Oilwell Servicing Contractors | | | | Details |
| APC | Arab Potash Company Ltd. | | | | Details |
| APC | Anadarko Petroleum Corporation | | | | Details |
| APC | American Power Conversion | | | | Details |
| APC | Alexandria Petroleum Company Egypt | | | | Details |
| APCD | air pollution control device | | | | Details |
| APEC | Asia Pacific Economic Cooperation Forum | | | | Details |
| Apicorp | Arab Petroleum Investment Corporation | | | | Details |
| applic | application | | | | Details |
| APRC | Arab Petroleum Research Center France | | | | Details |
| APRC | Amerya Petroleum Refining Company Egypt | | | | Details |
| APSCO | Arab Petroleum Services Co. OAPEC | | | | Details |
| AQCR | air quality control region | | | | Details |
| ARACL | Array Acoustic Log | | | | Details |
| Aramco | Arabian American Oil Company | | | | Details |
| ARAMCO | (see Saudi Aramco) (formerly Arabian American Oil Company) Saudi Arabia | | | | Details |
| ARC | Array Restistivity Compensated tool (LWD) | | | | Details |
| ARC | Array Compensated Resistivity | | | | Details |
| arch | architectural | | | | Details |
| Archeo | Archeozoic | | | | Details |
| Arco | Atlantic Richfield Company | | | | Details |
| ARCO | Atlantic Richfield Co. | | | | Details |
| ARRC | Array Acoustic Report | | | | Details |
| ASC | Affiliated Services Contract | | | | Details |
| ASC | Aramco Services Company | | | | Details |
| ASCE | American Society of Civil Engineers | | | | Details |
| ASCII | American Standard Code for Information Interchange | | | | Details |
| ASCSSV | Annulus Surface Controlled Sub Surface Valve | | | | Details |
| ASIC | Application Specific Integrated Circuit (SLB, a chip for signal processing of gauges) | | | | Details |
| assoc | associate(d)(s) | | | | Details |
| ATC | after top center | | | | Details |
| ATCE | Annual Technical Conference and Exhibition | | | | Details |
| ATDNSHINC | Any Time Day/Night Sundays and Holidays INCluded | | | | Details |
| ATLANTICO | Compania Espanola de Petroleos Atlantico S.A. Spain | | | | Details |
| ATUTC | Actually Time Used To Count | | | | Details |
| AVC | automatic volume control | | | | Details |
| aWOC | Actual Water Oil Contact | | | | Details |
| AXORC | Assuit Oil Refining Company Egypt | | | | Details |
| B&CB | beaded and center beaded | | | | Details |
| BAC | Blood Alcohol Concentration | | | | Details |
| BACB | British Arab Commercial Bank | | | | Details |
| BACT | Best Available Control Technology | | | | Details |
| Banoco | Bahrain National Oil Company | | | | Details |
| BANOCO | Bahrain National Oil Company Bahrain | | | | Details |
| Bapco | Bahrain Petroleum Company | | | | Details |
| BAPCO | Bahrain Petroleum Company BSC Bahrain | | | | Details |
| Bapetco | Badr al-Din Petroleum Company | | | | Details |
| BAPETCO | Badr El Deen Petroleum Co. Egypt | | | | Details |
| BASIC | Beginners All Purpose Symbolic Instruction Code | | | | Details |
| Batelco | Bahrain Telecommunications Co. | | | | Details |
| bbl/cd | barrels per calendar day | | | | Details |
| BC | Barrel Condensate | | | | Details |
| BC | Broken Cone | | | | Details |
| BC | BOTSWANA | | | | Details |
| BC | barrels of condensate | | | | Details |
| BCCI | Bank of Credit and Commerce International | | | | Details |
| Bcf | billion cubic feet (of natural gas) | | | | Details |
| BCF | Billion Cubic Feet | | | | Details |
| Bcf | billions of cubic feet | | | | Details |
| Bcf/d | billion cubic feet per day | | | | Details |
| Bcfd | billion cubic feet per day | | | | Details |
| Bcfe | billion cubic feet (of natural gas equivalent) | | | | Details |
| bcm | Billion Cubic Meters | | | | Details |
| BCM | Banque du Maroc | | | | Details |
| BCP | Banque Centrale Populaire | | | | Details |
| BCPD | Barrels Condensate Per Day | | | | Details |
| BCPD | barrels of condensate per day | | | | Details |
| BCPH | barrels of condensate per hour | | | | Details |
| BCPH | barrels condensate per hour | | | | Details |
| BCPMM | barrels of condensate per million | | | | Details |
| BCPMM | barrels condensate per million | | | | Details |
| BCS | Ballast Control Supervisor | | | | Details |
| BCS | Borehole Compensated Sonic | | | | Details |
| BCSM | Bioturbated, Clay-Rich, Skeletal Mudstone Wackestone | | | | Details |
| BCT | Best Conventional Pollutant Control Technology | | | | Details |
| BDC | Backup Domain Controller | | | | Details |
| BEC | Bid Evaluation Criteria | | | | Details |
| bec | becoming | | | | Details |
| Beck | Beckwith | | | | Details |
| Bel-C | Belle City | | | | Details |
| BGC | British Gas Council UK | | | | Details |
| BHC | Borehole compensated sonic log | | | | Details |
| BHC | BHC Gamma Ray Log | | | | Details |
| BHC | Sonic Log | | | | Details |
| BHC | bottom hole choke | | | | Details |
| BHC | Borehole Compensated | | | | Details |
| BHC | bottom-hole choke | | | | Details |
| BHC | Bore Hole Compensated | | | | Details |
| BHC | BHC sonic Logging | | | | Details |
| BHC | Bottom Hole Contribution | | | | Details |
| BHC AL TC | BHC Acoustilog Caliper (Thru Casing) | | | | Details |
| BHC ALC | BHC Acoustilog Caliper | | | | Details |
| BHC ALC GR | BHC Acoustilog Caliper Gamma Ray | | | | Details |
| BHC ALC GRN | BHC Acoustilog Caliper G/R Neutron | | | | Details |
| BHC ALC N | BHC Acoustilog Caliper Neutron | | | | Details |
| BHC ALGRNTC | BHC Acoustilog Caliper G/R Neutron (Thru Casing) | | | | Details |
| BHCA | BHC Acoustic Log | | | | Details |
| BHC-GR | BHC Sonic-Gamma Ray Logging | | | | Details |
| BHCIP | Bottom Hole Closed In Pressure | | | | Details |
| BHCP | bottom hole circulating pressure | | | | Details |
| BHCS | BHC Sonic Log | | | | Details |
| BHCS | bottom hole compensated sonic | | | | Details |
| BHCS | Borehole Compensated Sonic | | | | Details |
| BHCT | Bottomhole Circulating Temperature | | | | Details |
| BHCT | bottom hole circulating temperature | | | | Details |
| BHC-VD | BHC Sonic-Variable Density | | | | Details |
| BHC-VD | Variable Density Logging | | | | Details |
| BHC-WFD | Wave Form Digitizing | | | | Details |
| BHC-WFL | Wave Form Logging | | | | Details |
| BHPC | bottom-hole pressure closet | | | | Details |
| BiC | Best in Class | | | | Details |
| BIMCO | The Baltic and International Maritime Conference | | | | Details |
| BIPC | Bandar Imam Petrochemical Complex | | | | Details |
| Bl/Cb | blast cabinet | | | | Details |
| BLC | Big Lever Club (Contracting) | | | | Details |
| BLC | barrels load condensate | | | | Details |
| BLCPD | barrels load condensate per day | | | | Details |
| BLCPH | barrels load condensate per hour | | | | Details |
| BMCE | Banque Marocaine du Commerce Extérieure | | | | Details |
| BMCI | Banque Marocaine pour le Commerce et l’Industrie | | | | Details |
| BNOCL | Barbados National Oil Company Ltd. Barbados | | | | Details |
| BOC | Breach of Contract | | | | Details |
| BOC | base operations camp | | | | Details |
| BOCD | barrels oil per calendar day | | | | Details |
| BOCS | Basal Oil Creek Sand | | | | Details |
| BOPEC | Bonaire Petroleum Corporation Neth. Antilles | | | | Details |
| BORCO | Bahamas Oil Refining Co. Venezuela | | | | Details |
| BP/CLR | bypass cooler | | | | Details |
| BPC | British Printing Company | | | | Details |
| BPC | Baker Petrolite Corporation | | | | Details |
| BPC | Balanced Point Control (a company in Europe providing snubbing units) | | | | Details |
| BPC | Bharat Petroleum Corp. India | | | | Details |
| BPCL | Bharat Petroleum Corporation Limited | | | | Details |
| BPCV | Below Packer Circulating Valve (new from SLB) | | | | Details |
| brach | brachiopod | | | | Details |
| brack | brackish | | | | Details |
| BRC | brace(ing)(ed) | | | | Details |
| brec | breccia | | | | Details |
| BSc | Bachelor of Science | | | | Details |
| BSC | Balance Score Card | | | | Details |
| BSCF | Billion Standard Cubic Feet | | | | Details |
| Bscf/d | billion standard cubic feet per day | | | | Details |
| BSFC | brake specific fuel consumption | | | | Details |
| BtBcp | beyond the best common process | | | | Details |
| BTC | Best Technical Case | | | | Details |
| BTC | buttress thread coupling | | | | Details |
| BTDC | before top dead center | | | | Details |
| BTO/C | break to open/close (valve torque) | | | | Details |
| Btu/scf | British thermal units per standard cubic feet | | | | Details |
| Buck | Buckner | | | | Details |
| Buckr | buckrange | | | | Details |
| BVC | Bulk Volume Capillary (T2 from 3 to 30 milliseconds) | | | | Details |
| BWOC | by weight of cement | | | | Details |
| C limit | or Ceiling limit | | | | Details |
| C O | Carbon Oxygen | | | | Details |
| C O | Carbon-Oxygen | | | | Details |
| C pump | Centrifugal Pump ("low pressure - high volume" pump to transfer liquid on rig site) | | | | Details |
| C to C | center to center | | | | Details |
| C to E | center to end | | | | Details |
| C to F | center to face | | | | Details |
| C&A | compression and absorption plant | | | | Details |
| C&C | Circulate & Condition (ie mud) | | | | Details |
| C&C | circulate & condition | | | | Details |
| C&CH | circulated and conditioned hole | | | | Details |
| C&CM | circulated and conditioned mud | | | | Details |
| C&E | Well completion and equipment cost | | | | Details |
| C&F | Cost and Frieght | | | | Details |
| C&F | cost and freight | | | | Details |
| C&K | Choke & Kill (BOPs) | | | | Details |
| C&P | Cased & Perfed (completion type) | | | | Details |
| C&P | cased and perforated | | | | Details |
| C&P | cellar & pits | | | | Details |
| C&R | circulate and reciprocate | | | | Details |
| C&S | Cased and Suspended | | | | Details |
| C&W | coat and wrap(pipe) | | | | Details |
| C.I.F. | cost insurance and freight | | | | Details |
| C.O.P. | completed on pump | | | | Details |
| C.P. | Cathodic protection or Corrosion Protection | | | | Details |
| C/ | contractor(i.e., C/John Doe) | | | | Details |
| C/A | commission agent | | | | Details |
| C/B | Crew Boat | | | | Details |
| C/BM | crawl beam | | | | Details |
| C/C | sshinC/sshinC | | | | Details |
| C/H | Circulate to clean hole | | | | Details |
| C/H | cased hole | | | | Details |
| C/L | Control Line (the hydraulic line for controling SSSV and chemical injection in completion) | | | | Details |
| C/L | center line | | | | Details |
| C/M | Circulate to condition mud | | | | Details |
| C/O | Change Out | | | | Details |
| c/o | care of | | | | Details |
| C/P | Circulate pill | | | | Details |
| C/P | CharterParty | | | | Details |
| C/S | Circulate for sample | | | | Details |
| C/S | Client Server | | | | Details |
| C/T | Change tools | | | | Details |
| C/W | Complete With | | | | Details |
| C/W | Clockwise | | | | Details |
| C/W | Come With | | | | Details |
| c/w | Carried with | | | | Details |
| C/X | sshinC / ssheX | | | | Details |
| C02 | Development Well-Carbon Dioxide | | | | Details |
| C1 | Methane | | | | Details |
| C1 | through C5 hydrocarbons with one to five carbon atoms | | | | Details |
| C2 | Ethane | | | | Details |
| C3 | Propane | | | | Details |
| C4 | Butane | | | | Details |
| C6 | Hexanes | | | | Details |
| C7+ | Heavy Hydrocarbon Components | | | | Details |
| C7+ | Heavy Hydrocarbon Components | | | | Details |
| CA | Core Analysis Log | | | | Details |
| CA | Corrosion Allowance | | | | Details |
| CA | Certification Authority | | | | Details |
| CA | CANADA | | | | Details |
| CA | Chartered Accountant | | | | Details |
| CA | California | | | | Details |
| CA | Compressional Amplitude | | | | Details |
| CAA | Clean Air Act | | | | Details |
| CAB | cabinet | | | | Details |
| Cable | one of various braided cables, with or without isolated conductance wires, used for well operations | | | | Details |
| CaBr2 | calcium bromide | | | | Details |
| CAC | Competence Assurance Coordinator | | | | Details |
| CAC | Circumferential Acoustilog | | | | Details |
| CaCl2 | calcium chloride salt | | | | Details |
| CaCO3 | calcium carbonate | | | | Details |
| CAD | Computer Aided Design | | | | Details |
| CAD | computer-aided design | | | | Details |
| Cadd | Caddell | | | | Details |
| CADE | Canadian Association of Drilling Engineers | | | | Details |
| CAF | Currency adjusting factor (freight) | | | | Details |
| CAF | CENTRAL AFRICAN REPUBLIC | | | | Details |
| CAFE | Corporate Average Fuel Economy | | | | Details |
| CAG | cut across grain | | | | Details |
| CAGC | A combine: Continental Oil Co., Atlantic Richfield Co., and Cities Service Oil Co. | | | | Details |
| CAGCT | Centre for Advanced Gas Combustion Technology | | | | Details |
| CAGR | compound annual growth rate | | | | Details |
| CAIR | Comprehensive Assessment Information Rule (under TSCA) | | | | Details |
| CAL | Caliper | | | | Details |
| CAL | Computed Gafillla | | | | Details |
| CAL | Section Gauge | | | | Details |
| CAL | Country Alert Level | | | | Details |
| cal | calcite, calcitic | | | | Details |
| cal | caliche | | | | Details |
| CAL | caliper log | | | | Details |
| cal | caliper survey | | | | Details |
| cal | calorie | | | | Details |
| CAL | Caliper Logging | | | | Details |
| CAL | Computer Analyzed Log | | | | Details |
| CAL | Four-Arm Caliber Log | | | | Details |
| CAL | Perforation Depth Control Log | | | | Details |
| CAL | Caltex Australia Ltd. Australia | | | | Details |
| CALA | Calipet Analysis | | | | Details |
| CALA | Caliper Analysis | | | | Details |
| calc | calcareous | | | | Details |
| CALC | Caliper Curve | | | | Details |
| Calc | calcareous, calcerenite | | | | Details |
| Calc | calcium | | | | Details |
| Calc | calculate(ed), calculation | | | | Details |
| calc | gr calcium-base grease | | | | Details |
| CALD | Caliper interpreted from Density | | | | Details |
| cale | calceneous | | | | Details |
| CALI | Caliper Log | | | | Details |
| CALI | Generalized Caliper | | | | Details |
| CALI | General Caliper | | | | Details |
| CALIBR | calibrate, calibration | | | | Details |
| CALIL | Caliper Log | | | | Details |
| CALOG | Circumferential Acoustic Log | | | | Details |
| CALP | Caliper | | | | Details |
| CALTEX | Various affiliates of Texaco Inc, and Chevron Corp. partnership — | | | | Details |
| Calv | Calvin | | | | Details |
| CALVE | Calibrated Velocity Log Data | | | | Details |
| CAM | Contract Accountable Manager | | | | Details |
| Camb | cambrian | | | | Details |
| CAMEL | Companie Algerienne du Methane Liquide France/Algeria | | | | Details |
| CAMPSA | Compania Arrendataria del Monopolio de Petroleos, S.A. (sub. of Repsol) Spain | | | | Details |
| CAMS | Competence Assurance Management System | | | | Details |
| CAN | CANADA | | | | Details |
| Cane | Riv Cane River | | | | Details |
| CANL | Computer Analysis | | | | Details |
| CanOxy | Canadian Occidental Petroleum Ltd. | | | | Details |
| Cany | canyon | | | | Details |
| CAO | Computer Aided Operations | | | | Details |
| CaO | calcium oxcide | | | | Details |
| CAODC | Canadian Association of Oilwell Drilling Contractors | | | | Details |
| CAODS | Canadian Association of Oilwell Drilling Contractors | | | | Details |
| CAOF | calculated absolute open flow A theoretical figure of a wells maximum production | | | | Details |
| CAOF | calculated absolute open flow | | | | Details |
| CAP | Casing Annulus Packer | | | | Details |
| CAP | Central Asia Petroleum | | | | Details |
| CAP | Condition Assessment Programme | | | | Details |
| Cap | Capacity | | | | Details |
| CAP | EX Capital expenditure | | | | Details |
| cap | capacitor | | | | Details |
| Cap | Captain | | | | Details |
| CAPAG | Entreprise Moderne de Canalisations Petrolieres, Aquiferes et Gasieres France | | | | Details |
| CAPEX | Capital Expenditure | | | | Details |
| CAPP | Canadian Association of Petroleum Producers | | | | Details |
| CAPP | Canadian Association of Petroleum Producers | | | | Details |
| CAR | Company Appointed Representative | | | | Details |
| CAR | Corrective Action Request | | | | Details |
| CAR | Corporate Activity Report | | | | Details |
| Car | Carlile | | | | Details |
| carb | carbonaceous | | | | Details |
| carb | test carbontetrachloride | | | | Details |
| CARBESA | Carbon Black Espanola S.A. Spain | | | | Details |
| Carm | Carmel | | | | Details |
| CART | Cam Actuated Running Tool (Housing Running Tool) | | | | Details |
| CART | Cap Replacement Tool | | | | Details |
| CAS | Casing Log | | | | Details |
| CAS | Casing Run | | | | Details |
| CAS | Chemical Abstracts Service (see comment) | | | | Details |
| CAS | Condition Assessment Scheme | | | | Details |
| CAS | Chemical Abstracts Service | | | | Details |
| CAS | Chemical Abstract Service | | | | Details |
| CASE | Computer-aided Software Engineering | | | | Details |
| Casing) | (Thru | | | | Details |
| CASL | Computer Acoustic | | | | Details |
| CaSO4 | calcium sulfate | | | | Details |
| Casoc | California Arabian Standard Oil Company | | | | Details |
| Casp | Casper | | | | Details |
| CAST | Circumfrential Accoustic Tool (HES) | | | | Details |
| CAST | Circumferential Acoustic Scanning | | | | Details |
| CAT | computer-aided tomography | | | | Details |
| CAT | carburetor air temperature | | | | Details |
| Cat | Catahoula | | | | Details |
| CAT | catalog | | | | Details |
| CAT | catalyst, catalytic | | | | Details |
| cat | ckr catalytic cracker | | | | Details |
| Cat | Crk Cat Creek | | | | Details |
| CATe | Core Asset Team | | | | Details |
| cath | cathodic | | | | Details |
| CATR | Clean Air Transportation Rule | | | | Details |
| CATS | Cableless Telemetry System | | | | Details |
| CATT | Capabilities & Technology Team | | | | Details |
| caus | caustic | | | | Details |
| cav | cavity | | | | Details |
| CAVL | Compensated Acoustic Velocity | | | | Details |
| CAW | Completions and Workovers | | | | Details |
| CB | Crew Boat | | | | Details |
| CB | Core Barrel | | | | Details |
| CB | CAMBODIA | | | | Details |
| CB | changed(ing) bits | | | | Details |
| CB | continuous blowdown | | | | Details |
| CB | counterbalance(pumping equip.) | | | | Details |
| CBA | Commercial Bid Assessment | | | | Details |
| CBD | Competence Based Development | | | | Details |
| CBD | Commercial Bank of Dubai | | | | Details |
| CBE | Commercial Bid Evaluation | | | | Details |
| CBF | Coiled Tubing Firing Head | | | | Details |
| CBFT | CuBic FeeT | | | | Details |
| CBG | Coalbed gas | | | | Details |
| CBHT | circulating bottom hole temperature | | | | Details |
| CBI | confidential business information | | | | Details |
| CBIL | CBIL Log | | | | Details |
| CBIL | Circumferential Borehole Imaging Log | | | | Details |
| CBJ | carbide blast joint | | | | Details |
| CBK | Commercial Bank of Kuwait | | | | Details |
| CBL | Cement Bond Log (measurement of casing cement integrity) | | | | Details |
| CBL | Cement Bond Log | | | | Details |
| CBL | Acoustic Cement Bond | | | | Details |
| CBL | cable(ing) | | | | Details |
| CBL | Cement Bond Logging | | | | Details |
| CBL | Acoustic Cement Bond Log | | | | Details |
| CBL GRN | Acoustic Cement Bond G/R Neutron | | | | Details |
| CBL N | Acoustic Cement Bond Neutron | | | | Details |
| CBL/GR | Acoustic Cement Bond Gamma Ray | | | | Details |
| CBL/GR/NEU | Acoustic Cement Bond G/R Neutron | | | | Details |
| CBL/NEU | Acoustic Cement Bond Neutron | | | | Details |
| CBL-GR | Cement Bond-Gamma Ray Logging | | | | Details |
| CBL-GRN | Cement Bond-Gamma Ray Neutron | | | | Details |
| CBL-N | Cement Bond-Neutron | | | | Details |
| CBL-VD | Variable Density Logging | | | | Details |
| CBL-VD | Cement Bond-Variable Density Logging | | | | Details |
| CBM | Choke Bridge Module XT Choke | | | | Details |
| CBM | Coal Bed Methane | | | | Details |
| CBM | Conventional Buoy Mooring | | | | Details |
| CBM | Choke Bridge Module - XT Choke | | | | Details |
| CBM | choke bridge module XT choke | | | | Details |
| CBND | Cement Bond | | | | Details |
| CBNG | coal bed natural gas | | | | Details |
| CBNG | coalbed natural gas | | | | Details |
| CBO | Commercial Bank of Oman | | | | Details |
| CBP | Composite Bridge Plug | | | | Details |
| CBQ | Commercial Bank of Qatar | | | | Details |
| CBT | Computer Based Training | | | | Details |
| CBT | cement bond tool | | | | Details |
| CBTT | Combinable Borehole Televiewer Tool | | | | Details |
| CBU | Circulate Bottoms Up | | | | Details |
| CBW | Clay Bound Water | | | | Details |
| CBW | Clay Bound Water (T2 from 0.3 to 3 milliseconds), | | | | Details |
| CC | Carbon Copy | | | | Details |
| cc | cubic centimeter | | | | Details |
| CC | Cracked Cone | | | | Details |
| CC | COCOS (KEELING) ISLANDS | | | | Details |
| CC | casing choke (upper case) | | | | Details |
| CC | Compensated Porosity | | | | Details |
| CC | calcium chloride | | | | Details |
| CC | casing cemented(depth) | | | | Details |
| CC | closed cup | | | | Details |
| CC | Chemical Cutters | | | | Details |
| C-C | Thru-Tubing Caliper | | | | Details |
| CC1 | 1-2-1/16-in. (25-52mm) Pipe | | | | Details |
| CC2 | 2-3 / 8-4-in. (60-102mm) Pipe | | | | Details |
| CC3 | 4-1 / 4-5-9-/ 16 in. (108-141 mm) Pipe | | | | Details |
| CCA | Conventional Core Analysis | | | | Details |
| CCA | Cut Casing | | | | Details |
| C-Cal | contact caliper | | | | Details |
| ccBU | circulate bottoms up | | | | Details |
| CCC | Consolidated Contractors Company | | | | Details |
| CCC | Clean Caribbean Cooperative (—) | | | | Details |
| CCCOP | Conservation Committee of California Oil Producers | | | | Details |
| CCDF | Conditional Cumulative Distribution Function | | | | Details |
| CCDST | closed chamber DST | | | | Details |
| CCE | Constant Composition Expansion (type of PVT analysis) | | | | Details |
| CCE | Constant Composition Expansion | | | | Details |
| CCEA | Cabinet Committee on Economic Affairs | | | | Details |
| CCF | Cost Carry Forward | | | | Details |
| CCF | 100 Cubic Feet | | | | Details |
| CCFI | Consulting Center for Finance and Investment | | | | Details |
| CCGT | Combined Cycle Gas Turbine | | | | Details |
| CCHF | center of casinghead flange | | | | Details |
| CCHT | Core Chart Log | | | | Details |
| CCIC | Consolidated Contractors International Company | | | | Details |
| CCK | COCOS (KEELING) ISLANDS | | | | Details |
| Cck | casing choke | | | | Details |
| CCL | Casing Collar Locator | | | | Details |
| CCL | casing collar locator log | | | | Details |
| CCL | Casing Collar | | | | Details |
| CCL | Perforation Depth Control Log | | | | Details |
| CCLGO | cat-cracked light gas oil | | | | Details |
| CCLP | Casing Collar Locator Perforation | | | | Details |
| CCLTP | Casing Collar Locator Through Tubing Plug | | | | Details |
| CCM | condensate-cut mud | | | | Details |
| CCMO | Credit Commercial du Moyen Orient | | | | Details |
| CCN | Caliper Corrected Neutron | | | | Details |
| CCP | Cathodic Corrosion Protection | | | | Details |
| CCP | central compressor plant | | | | Details |
| CCP | critical compression pressure | | | | Details |
| CCPR | casing collar perforating record | | | | Details |
| CCR | Change Control Request | | | | Details |
| CCR | Continuous Catalytic Reformer | | | | Details |
| CCR | Central Control Room | | | | Details |
| CCR | Conradson carbon residue | | | | Details |
| CCR | critical compression ratio | | | | Details |
| CCRT | Coct Control Reporting Tool (SAP Report) | | | | Details |
| CCS | Carbon Capture & Sequestration | | | | Details |
| CCS | Continuous Circulation System | | | | Details |
| CCS | Current Cost of Supply | | | | Details |
| CCS | Carbon (CO2) Capture & Sequestration | | | | Details |
| CCS | carbon capture and sequestration | | | | Details |
| CCS | California Coordinate System | | | | Details |
| CCS | cast carbon steel | | | | Details |
| CCS | computer control system | | | | Details |
| CCT | Closed Chamber Test | | | | Details |
| CCT | concentric coiled tubing | | | | Details |
| CCTS | Cable Cutter Tool sub | | | | Details |
| CCTV | Closed-Circuit TeleVision | | | | Details |
| CCU | catalytic cracking unit | | | | Details |
| CCW | Counter Clock-Wise | | | | Details |
| ccw | counterclockwise | | | | Details |
| CD | Chart Datum | | | | Details |
| CD | Core Description | | | | Details |
| CD | Cost Depth chart | | | | Details |
| CD | Coned Dragged | | | | Details |
| CD | CHAD | | | | Details |
| CD | CONGO, THE DEMOCRATIC REPUBLIC OF THE | | | | Details |
| Cd | cadmium | | | | Details |
| CD | Calendar Day | | | | Details |
| CD | cold drawn | | | | Details |
| CD | contract depth | | | | Details |
| CDAT | Calibration Date | | | | Details |
| CDATA | Core Data | | | | Details |
| CDB | cement dump bailer | | | | Details |
| CDB | common data base | | | | Details |
| CDBTF | common data base task force | | | | Details |
| CDC | Career Development Center | | | | Details |
| CDC | Compensated Density Caliper | | | | Details |
| CDCL | Compensated Densilog Caliper | | | | Details |
| CDCL GR | Compensated Densilog Caliper Gamma Ray | | | | Details |
| CDD | Continuous Dipmeter Digital | | | | Details |
| CDF | Cumulative Density (Distribution) Function | | | | Details |
| CD-I | Compact Disc-Interactive | | | | Details |
| CDIS | CDI Synthetic Seismic Log | | | | Details |
| CDL | Compensated Density Log | | | | Details |
| CDL | compensated formation density log | | | | Details |
| CDL | Compensat ed Density | | | | Details |
| CDL | Compensated Density | | | | Details |
| CDL | cut drilling line | | | | Details |
| CDL | Compensated Densilog | | | | Details |
| CDL/CAL | Compensated Densilog Caliper | | | | Details |
| CDL/CAL/ | Compensated Densilog Caliper | | | | Details |
| CDL/CAL/GR | Compensated Densilog Caliper | | | | Details |
| CDL/CAL/GR | Densilog Caliber Gamma Ray Log | | | | Details |
| CDL/CAL/ML | Compensated Densilog Caliper Minilog | | | | Details |
| CDLC GRN | Compensated Densilog Caliper G/R Neutron | | | | Details |
| CDLC M | Compensated Densilog Caliper Minilog | | | | Details |
| CDLC N | Compensated Densilog Caliper Neutron | | | | Details |
| CDM | Continuous Dipmeter | | | | Details |
| CDM | Continuous Dip Meter | | | | Details |
| CDM | Diplog or Resistivity Dip | | | | Details |
| CDM | continuous dipmeter survey | | | | Details |
| CDMD | Continuous Dip Meter - Digital | | | | Details |
| CDN | Compensated Density Neutron | | | | Details |
| CDO | certified drawing outline | | | | Details |
| CDP | Comprehensive Drilling Plan | | | | Details |
| CDP | Common Depth Point (geophysics) | | | | Details |
| CDP | Common Depth Point | | | | Details |
| CDP | Central Delivery Point | | | | Details |
| CDP | Conductivity Derived Porosity | | | | Details |
| CD-PL | cadmium plate | | | | Details |
| CDPNE | College Degree Program for Non-Employees | | | | Details |
| CDR | Compensated Dual Resistivity | | | | Details |
| CDR | Council for Development and Reconstruction | | | | Details |
| Cdr | Mtn Cedar Mountain | | | | Details |
| CDR | Continuous Directional Survey | | | | Details |
| CDRCL | Compensated Dual Resistivity Cal. Log | | | | Details |
| CDRT | Completion Design Review Team | | | | Details |
| CDS | Completion Data System | | | | Details |
| CDS | Central Degassing Station | | | | Details |
| CDS | Continuous Direct ional Survey | | | | Details |
| CDS | Continuous Directional Survey | | | | Details |
| CDS | continuous directional service | | | | Details |
| CDS | Canadian Development Corp. | | | | Details |
| cdsr | condenser | | | | Details |
| CDT | Compensated Density | | | | Details |
| CDU | Control Distribution Unit | | | | Details |
| CDV | Critical Development Volume | | | | Details |
| CDVM | Conseil Déontologique des Valeurs Mobilières | | | | Details |
| Cdy | Cody(Wyoming) | | | | Details |
| CE | Civil Engineer | | | | Details |
| CE | Completion Engineer | | | | Details |
| CE | Corrosion Engineer | | | | Details |
| CE | Carottage Electric log (SP + Deep resistivity) or Cable Electric Log (name for wireline logging in French) | | | | Details |
| CE | OMV-Standard Bohrlochmessung (carottage electric) | | | | Details |
| CE | SRI LANKA | | | | Details |
| CE | completions engineer | | | | Details |
| ce Ta | Center Tank | | | | Details |
| CEC | Cement Casing | | | | Details |
| CEC | Cation Exchange Capacity (see comment) | | | | Details |
| CEC | Cation Exchange Capacity | | | | Details |
| CECAN | CEC Analysis | | | | Details |
| CEDIPSA | Compania Espanola Distribuidora de Petroleos S.A. Spain | | | | Details |
| CEE | Central and Eastern Europe | | | | Details |
| CEHL | Cain Energy Hydrocarbons Limited | | | | Details |
| CEIL | Cairn Energy India Limited | | | | Details |
| CEL | cement evaluation log | | | | Details |
| CEL | Cement Evaluation | | | | Details |
| cell | cellar | | | | Details |
| cell | cellular | | | | Details |
| CEM | Cementing Run | | | | Details |
| CEM | Cement(ed) | | | | Details |
| CEME | Cement Evaluation | | | | Details |
| CEMF | counter electromotive force | | | | Details |
| CEMS | continuous emission monitoring system | | | | Details |
| Ceno | Cenozoic | | | | Details |
| cent | centralizers | | | | Details |
| CentGas | Central Asia Gas Pipeline Ltd. | | | | Details |
| centr | centrifugal | | | | Details |
| CEP | Current Estimated Potential | | | | Details |
| CEP | Cement Plug | | | | Details |
| CEP&M | Comite d’Etudes Petrolieres et Marine France | | | | Details |
| CEPA | Canadian Energy Pipeline Association | | | | Details |
| CEPCO | City Ecuadoriana Production Co. Ecuador | | | | Details |
| CEPE | Corporacion Estatal de Petroleo Ecuatoriano Ecuador | | | | Details |
| ceph | cephalopod | | | | Details |
| CEPP | Chemical Emergency Preparedness Program | | | | Details |
| Cepsa | Compania Espanola de Petroleos | | | | Details |
| CEPSA | Compania Espanola de Petroleos, S.A. Spain | | | | Details |
| CEQ | council on environmental quality | | | | Details |
| CEQA | California Environmental Quality Act | | | | Details |
| CERA | Cambridge Energy Research Associates | | | | Details |
| CERCLA | a US Law – Comprehensive Environmental Response, Compensation and Liability Act of 1980 | | | | Details |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act (The Superfund Law) | | | | Details |
| CERE | Cement Remedial Log | | | | Details |
| CERHYD | Centre de Recherche Pour La Valorisation des Hydrocarbures & Derives Algeria | | | | Details |
| CERT | certified | | | | Details |
| Cert.ex. | Ceratobulimina eximia | | | | Details |
| CEST | Central European Summer Time | | | | Details |
| CET | Cement Evaluation Tool | | | | Details |
| CET | Central European Time | | | | Details |
| CET | cement evaluation | | | | Details |
| CET | Cement Evaluation Log | | | | Details |
| CEU | (Certificate of) Continuing Education Units | | | | Details |
| CEU | Continuing Education Units | | | | Details |
| CF | Completion Fluid | | | | Details |
| CF | Carbolite Filter | | | | Details |
| CF | Casing flange elevation | | | | Details |
| CF | CONGO | | | | Details |
| CF | CENTRAL AFRICAN REPUBLIC | | | | Details |
| CF | casing flange | | | | Details |
| CF | clay filled | | | | Details |
| Cf | Cockfield | | | | Details |
| CF | cold finished | | | | Details |
| CFA | Compositional Fluid Analizer | | | | Details |
| CFB&G | companion flange bolt and gasket | | | | Details |
| CFBO | companion flanges bolted on | | | | Details |
| CFD | Computational Fluid Dynamics | | | | Details |
| CFD | Caisse Française de Développement | | | | Details |
| Cfd | cubic foot per day | | | | Details |
| CFD | Compensated Formation Density | | | | Details |
| cfd | cubic feet per day | | | | Details |
| CFDC | Compensated Formation Density Caliper | | | | Details |
| CFDP | Conceptual Field Development Plan | | | | Details |
| CFE | core flow efficiency | | | | Details |
| CFE | contractor furnished equipment | | | | Details |
| CFG | Cubic feet of Natural Gas | | | | Details |
| cfg | cubic feet gas | | | | Details |
| CFG | Companie Francaise pour le Developpement de Geothermie et des Energies Nouvelles France | | | | Details |
| cfgd | cubic feet gas per day | | | | Details |
| cfgh | cubic feet gas per hour | | | | Details |
| CFH | cubic feet per hour | | | | Details |
| CFM | Continuous Fracture Modeling | | | | Details |
| CFM | Flowmeter-Continuous | | | | Details |
| CFM | Cubic Feet per Minute | | | | Details |
| CFM | Continuous flowmeter | | | | Details |
| CFM | Companie Francaise du Methane France | | | | Details |
| CFM PFM | Continuous Flowmeter | | | | Details |
| CFN | Continuous Fracture Network | | | | Details |
| CFP | Compagnie Française des Pétroles | | | | Details |
| cfp | cubic feet per pound | | | | Details |
| CFP | Companie Francaise du Petroles (also Total) France | | | | Details |
| CFPM | Cubic Feet per Minute | | | | Details |
| CFPP | cold filter plugging point | | | | Details |
| CFR | Cost and FReight | | | | Details |
| CFR | critical flow rate | | | | Details |
| CFR | Code of Federal Regulations | | | | Details |
| CFR | cement friction reducer | | | | Details |
| CFR | cement friction retarder | | | | Details |
| CFR | Companie Francaise de Raffinage (sub. of Total) France | | | | Details |
| CFRC | Coordinating Fuel Research Committee | | | | Details |
| CFS | Caged Fullbore Flowmeter (in PLT tool) | | | | Details |
| cfs | cubic feet per second | | | | Details |
| CFT | Cubic FeeT | | | | Details |
| CFT | Call For Tender | | | | Details |
| CG | Contents Guideline | | | | Details |
| CG | Connection Gas | | | | Details |
| CG | CONGO, THE DEMOCRATIC REPUBLIC OF THE | | | | Details |
| CG | CONGO | | | | Details |
| CG | connection gas, mud logging term | | | | Details |
| cg | coarse grained | | | | Details |
| CG | Compensated Gamma | | | | Details |
| CG | center of gravity | | | | Details |
| cg | centigram | | | | Details |
| cg | coring | | | | Details |
| CG | corrected gravity | | | | Details |
| CGA | Canadian Gas Association | | | | Details |
| CGA | Clean Gulf Associates | | | | Details |
| CgASR | Coated-Grain, Algal, Skeletal Rudstone-Floatstone | | | | Details |
| CGEL | CG EL Log | | | | Details |
| CGES | Center for Global Energy Studies | | | | Details |
| CGES | Centre for Global Energy StudiesUK | | | | Details |
| CGF | central gas facility | | | | Details |
| CGG | Compagnie Générale de Géophysique (a fully integrated Geoscience company providing leading geological, geophysical and reservoir capabilities) | | | | Details |
| CGG | Companie Generale de Geophysique France | | | | Details |
| CGL | Core Gamma Log | | | | Details |
| cglt | conglomerate, conglomeritic | | | | Details |
| CGOC | Current Gas Oil Contact | | | | Details |
| CGPH | Core Graph Log | | | | Details |
| CGR | Condensate gas ratio | | | | Details |
| CGR | Computed Gamma Ray | | | | Details |
| C-gr | coarse grained | | | | Details |
| CGRI | Canadian Gas Research Institute | | | | Details |
| cgs | centimeter-gram-second-system | | | | Details |
| CgSG | Coated-Grain, Skeletal Grainstone | | | | Details |
| CGTC | Columbia Gas Transmission Co. | | | | Details |
| CGTL | Compact Gas to liquids (production equipment small enough to fit on a ship) | | | | Details |
| CGWC | Current Gas Water Contact | | | | Details |
| CH | Cased Hole | | | | Details |
| CH | CHINA | | | | Details |
| CH | SWITZERLAND | | | | Details |
| CH | Completion | | | | Details |
| CH | casinghead(gas) | | | | Details |
| ch | chert | | | | Details |
| ch | choke | | | | Details |
| CH | closed hole | | | | Details |
| CH | core hole | | | | Details |
| CH4 | methane | | | | Details |
| chal | chalcedony | | | | Details |
| CHAM | chamfer | | | | Details |
| Chapp | Chappel | | | | Details |
| CHAR | characteristics | | | | Details |
| Char | Charles | | | | Details |
| Chatt | Chattanooga shale | | | | Details |
| CHCNC | CHCNC Gamma Ray Casing Collar Locator | | | | Details |
| CHD | closed hydrocarbon drain | | | | Details |
| CHDT | Cased Hole Dynamics Tester | | | | Details |
| CHDT | Cased Hole Dynamic Tester | | | | Details |
| CHDTP | Caliper HDT Playback Log | | | | Details |
| CHE | Casing HAndling Equipment | | | | Details |
| CHE | SWITZERLAND | | | | Details |
| CHECK | Checkshot and Acoustic Calibration Report | | | | Details |
| Chem | Chemical | | | | Details |
| chem. | chemical, chemist, chemistry | | | | Details |
| chem. | prod chemical products | | | | Details |
| Cher | Cherokee | | | | Details |
| Chert | a hard, silicate sedimentary rock Similar to flint, but with less ordered structure A cryptocrystalline form of quartz | | | | Details |
| chert | chert | | | | Details |
| Ches | Chester | | | | Details |
| CHES | Basic | | | | Details |
| CHESM | contractor, health, environment and safety management | | | | Details |
| CHESS | chemical hazard employee safety system | | | | Details |
| CHF | casinghead flange | | | | Details |
| CHFF | Cased Hole Friction Factor | | | | Details |
| CHFP | Cased Hole Frac Pack | | | | Details |
| CHFR | Cased Hole Formation Resistivity | | | | Details |
| CHFR | Cased Hole Formation Resisitivity | | | | Details |
| CHFRTM | cased hole formation resistivity tool | | | | Details |
| CHFT | Cased Hole Dynamics Tester | | | | Details |
| CHFT | Cased Hole Formation Tester | | | | Details |
| CHG | casinghead gas | | | | Details |
| CHGP | Cased Hole Gravel Pack | | | | Details |
| CHH | Casing Head Hanger | | | | Details |
| CHH | Casing Head Housing | | | | Details |
| Chim-H | Chimney Hill | | | | Details |
| Chim-R | Chimney Rock | | | | Details |
| Chin | Chinle | | | | Details |
| Chini | General Company for Dinnerware | | | | Details |
| chit | chitin(ous) | | | | Details |
| CHK | choke | | | | Details |
| chk | chalk | | | | Details |
| Chkbd | checkerboard | | | | Details |
| chkd | checked | | | | Details |
| CHKD | PL checkered plate | | | | Details |
| CHKS | back flow checks | | | | Details |
| CHKSR | Checkshot Survey Report | | | | Details |
| CHKSS | Checkshot Survey Log | | | | Details |
| CHKV | check valve | | | | Details |
| chky | chalky | | | | Details |
| CHL | CHILE | | | | Details |
| CHL | cased hole log | | | | Details |
| chl | chloride | | | | Details |
| chl | chloride(s) | | | | Details |
| chl | chloritic | | | | Details |
| chl | log chlorine long | | | | Details |
| CHL | Chlorinlog | | | | Details |
| CHL GR | Chlorinlog-Gamma Ray | | | | Details |
| CHL GR | Chlorinlog-Gamma Ray | | | | Details |
| CHLR | chlorinator | | | | Details |
| CHMBR | chamber | | | | Details |
| CHN | CHINA | | | | Details |
| chng | change(ed)(ing) | | | | Details |
| CHNL | Channel Survey | | | | Details |
| CHNL | channel | | | | Details |
| CH-OP | chain operated | | | | Details |
| CHOPS | Cold Heavy Oil Production with Sand | | | | Details |
| CHOPT | CHarterer's OPTion | | | | Details |
| Chou | Chouteau lime | | | | Details |
| CHP | Casing Hanger Pressure (pressure in an annulus as measured at the casing hanger) | | | | Details |
| CHP | Casing Hanger Pressure | | | | Details |
| CHP | combined heat and power | | | | Details |
| CHP | casinghead pressure | | | | Details |
| CHR | Surgutneftegas Russia | | | | Details |
| chrg | charge(ed)(ing) | | | | Details |
| chrm | chairman | | | | Details |
| CHROM | Chromatolog | | | | Details |
| chromat | chromatograph | | | | Details |
| chrome | chromium | | | | Details |
| CHRT | casing hanger running tool | | | | Details |
| cht | chart | | | | Details |
| cht | chert | | | | Details |
| chty | cherty | | | | Details |
| Chug | chugwater | | | | Details |
| CI | Chemical Injection | | | | Details |
| CI | Competitive Intelligence | | | | Details |
| CI | Capital Intelligence | | | | Details |
| CI | Corrosion Inhibitor | | | | Details |
| CI | Cone Interference | | | | Details |
| CI | Capital Intensity | | | | Details |
| CI | CHILE | | | | Details |
| CI | COTE D'IVOIRE | | | | Details |
| CI | Casing Inspection/ Electro-Magnetic-Detector | | | | Details |
| CI | cast iron | | | | Details |
| CI | contour interval(map) | | | | Details |
| CI | engine compression-ignition engine | | | | Details |
| CI | Casing Inspection/Electro Magnetic-Detector | | | | Details |
| CIA | Concentration In Air | | | | Details |
| CIB | Commercial International Bank | | | | Details |
| Cib. | Cibicides | | | | Details |
| Cib.h. | Cibicides hazzardi | | | | Details |
| CIBHP | closed in bottom hole pressure | | | | Details |
| CIBP | cast iron bridge plug | | | | Details |
| CIBP | cast-iron bridge plug | | | | Details |
| CICHP | Closed In Casing Head Pressure | | | | Details |
| CID | Chemical Industries Development | | | | Details |
| CIDL | chemical injection downhole lower | | | | Details |
| CIDPP | Closed In Drill Pipe Pressure | | | | Details |
| CIDU | chemical injection downhole upper | | | | Details |
| CIE | crude industrial ethanol | | | | Details |
| CIED | International Center for Education and Development | | | | Details |
| CIEPSA | Compania de Investigacion y Exploraciones Petroliferas, S.A. Spain | | | | Details |
| CIF | Costs Insurance and Freight | | | | Details |
| CIIC | Commercial International Investment Company | | | | Details |
| CIIP | Condensate Initially In Place (Gas Cap/Res) | | | | Details |
| CILD | Conduction Log | | | | Details |
| CIM | Chemical Injection Mandrel/Manifold | | | | Details |
| CIM | Canadian Institute of Mining | | | | Details |
| CIM | Canadian Institute of Mining, Metallurgy and Petroleum | | | | Details |
| CIM | Companie Industrielle Maritime France | | | | Details |
| Cima | Cimarron | | | | Details |
| CIMS | Corrosion and Inspection Management System | | | | Details |
| CIMV | Chemical Injection Metering Valve | | | | Details |
| CIN | Common Interest Network (system on Shell Global Networks) | | | | Details |
| CINSA | Compania Insular del Nitrogena, S.A. Spain | | | | Details |
| CIP | Cement In Place | | | | Details |
| CIP | Carriage and Insurance paid to..... | | | | Details |
| CIP | Chemical Injection Port (for textim pump) | | | | Details |
| CIP | closed-in pressure | | | | Details |
| CIPA | California Independent Petroleum Association | | | | Details |
| CIPCO | Caspian International Petroleum Company | | | | Details |
| CIPF | Central Injection Pump Facility | | | | Details |
| CIPS | Concentration in Process Stream | | | | Details |
| CIPS | Chartered Institute of Purchasing & Supply | | | | Details |
| CIPS | Close Internal Potential Survey | | | | Details |
| CIR | Circulate | | | | Details |
| cir | circle | | | | Details |
| cir | circuit | | | | Details |
| cir | circular | | | | Details |
| cir | mils circular mills | | | | Details |
| CIRC | circulate | | | | Details |
| circ | circulate, circulation, circulating | | | | Details |
| circ | circulate, circulating, circulation | | | | Details |
| CIRES | Companhia Industrial de Resinas Sinteticas Portugal | | | | Details |
| CIRP | Schlumberger's Completion Insertion and Retrieval under Pressure, (snap lock guns) | | | | Details |
| CIRR | Commercial Interest Reference Rate | | | | Details |
| CIS | Commonwealth of Independent States | | | | Details |
| CIS | Customer Instrument Service | | | | Details |
| Cis | Cisco | | | | Details |
| CIS | Customer Instrument Service | | | | Details |
| CIT | Casing Integrity Test | | | | Details |
| CITHP | Closed In Tubing Head Pressure (tubing head pressure when the well is shut in) | | | | Details |
| CITHP | Closed In Tubing Hanger Pressure | | | | Details |
| CIT-OA | casing integrity test – outside annulus | | | | Details |
| CIV | Chemical Injection Valve | | | | Details |
| CIV | COTE D'IVOIRE | | | | Details |
| CIW | Cameron Iron Works | | | | Details |
| CIW | Concept Identific | | | | Details |
| CIWHP | closed in well head pressure | | | | Details |
| CJ | CAYMAN ISLANDS | | | | Details |
| CK | Cokriging | | | | Details |
| CK | COCOS (KEELING) ISLANDS | | | | Details |
| CK | COOK ISLANDS | | | | Details |
| ck | cake | | | | Details |
| ck | check | | | | Details |
| Ck-Mtn | Cook Mountain | | | | Details |
| cksn | chicksan | | | | Details |
| CKTA | Central Kazakhstan Territorial Administration for Natural Resource Protection Kazakhstan | | | | Details |
| CL | Core Log | | | | Details |
| CL | Control Line (the hydraulic line for controling SSSV and chemical injection in completion) | | | | Details |
| CL | CORAL SEA ISLANDS | | | | Details |
| CL | CHILE | | | | Details |
| CL | control line | | | | Details |
| CL | Chloride | | | | Details |
| CL | Chlorine or Chlorinilog | | | | Details |
| CL | Salinity | | | | Details |
| CL | carload | | | | Details |
| cl | centiliter | | | | Details |
| CL | class | | | | Details |
| CL | Salinity | | | | Details |
| CL&F | Continental Land and Fur Co. | | | | Details |
| Cl2 | chlorine gas | | | | Details |
| Cl2 | chlorine | | | | Details |
| CLA | Collective Labor Agreement | | | | Details |
| Clag | Clagget | | | | Details |
| Claib | Claiborne | | | | Details |
| Clarks | Clarksville | | | | Details |
| clas | clastic | | | | Details |
| CLAS | Clay Analysis and Shaly Sand Evaluation (CLASS®) | | | | Details |
| CLASS | classification | | | | Details |
| Clav | Clavalinoides | | | | Details |
| Clay | a fine grain (<000015” or about 4 microns) – finely crystalline silica sheet minerals Usually of silicate composition In oil field terms, the most common clays are Smectite (montmorillinite), illite, kaolinite and chlorite The characteristic for authogenic clay is to have extremely high surface area-to-volume ratio | | | | Details |
| Clay | Clayton | | | | Details |
| Clay | Claytonville | | | | Details |
| CLAY | Clay Description (CLAYS) | | | | Details |
| CLC | Civil Liability Convention | | | | Details |
| CLDL | Chlorije Detection | | | | Details |
| CLDL | Chloride Detection | | | | Details |
| Cleve | Cleveland | | | | Details |
| Clfk | Clearfork | | | | Details |
| CLFP | choke line friction pressureClinker | | | | Details |
| CLFR | clarifier | | | | Details |
| CLG | Core Log and Graph | | | | Details |
| CLG | cooling | | | | Details |
| CLG/TWR | cooling tower | | | | Details |
| CLGB | Credit Lyonnais Global Banking | | | | Details |
| CLH | Compania Logistica de Hidrocarburos S.A. Spain | | | | Details |
| Cliff-H | Cliff House | | | | Details |
| CLKG | caulking | | | | Details |
| CLMP | canvas-lined metal petal basket | | | | Details |
| cln(d)(g) | clean(ed)(ing) | | | | Details |
| ClO2 | chlorine dioxide, a powerful biocide that dissolves biomass cell walls It is nearly impossible for bacteria to develop immunity against ClO2 | | | | Details |
| Clov | clovery | | | | Details |
| clr | clear | | | | Details |
| clr | clear, clearance | | | | Details |
| CLR | cooler | | | | Details |
| CLR/TWR | cooling tower | | | | Details |
| CLRC | Career Ladder Review Committee | | | | Details |
| clrg | clearing | | | | Details |
| CLRP | Color Plot Continuous | | | | Details |
| clsd | closed | | | | Details |
| CLST | Clay Stone | | | | Details |
| CLT | Central Limit Theorem | | | | Details |
| CLTR | collector | | | | Details |
| cly | clay | | | | Details |
| Clyst | Claystone | | | | Details |
| clystn | clavstone | | | | Details |
| Cm | Compaction Coefficient | | | | Details |
| CM | Choke Module | | | | Details |
| CM | Choke Manifold | | | | Details |
| CM | Condition Mud | | | | Details |
| CM | CAMEROON | | | | Details |
| cm | centimeter | | | | Details |
| cm/sec | centimeters per second | | | | Details |
| CMA | Capital Markets Authority | | | | Details |
| CMA | acoustic caliper | | | | Details |
| CMC | carboxy methyl cellulose | | | | Details |
| CMC | sodium carboxymethylcellulose | | | | Details |
| Cmchn | comanchean | | | | Details |
| CMF | Combined Meter Factor | | | | Details |
| CMHPG | carboxy methyl, hydroxyl propyl cellulose | | | | Details |
| CML | Condition Monitoring Location | | | | Details |
| CML | Channelmaster | | | | Details |
| CML N | Channelmaster-Neutron | | | | Details |
| CMM | Corporate Management Manual | | | | Details |
| CMOP | Choke Manifold Operating Pressure | | | | Details |
| CMP | Common Midpoint (geophysics) | | | | Details |
| CMP | Common Mid Point | | | | Details |
| CMPARTR | comparator | | | | Details |
| CMPD | compound | | | | Details |
| CMPL | Completion | | | | Details |
| Cmpt | compact | | | | Details |
| CMPT | Centre for Marine & Petroleum Technology UK | | | | Details |
| CMR | Combinable Magnetic Resonance (Schlumberger NMR type logging tool) | | | | Details |
| CMR | CMR Log | | | | Details |
| CMR | Combinable Magnetic Resonance | | | | Details |
| CMR | CAMEROON | | | | Details |
| CMS | Corporate Management System | | | | Details |
| CMS | carboxy methyl starch | | | | Details |
| CMS | continuous monitoring system | | | | Details |
| CMSP | coastal and marine spatial planning | | | | Details |
| Cmt | Cement | | | | Details |
| cmt | cemented/cement | | | | Details |
| CMTD | cable mounted tension device | | | | Details |
| CN | Compensated Neutron Log | | | | Details |
| CN | CANADA | | | | Details |
| CN | COMOROS | | | | Details |
| CN | CANADA | | | | Details |
| CN | CHINA | | | | Details |
| CN | cetane number | | | | Details |
| CN/BD | control building | | | | Details |
| CNACG | China National Administration of Coal Geology China | | | | Details |
| CNCF | Field Normalized Compensated Neutron Porosity | | | | Details |
| CNCF | field-normalised compensated neutron porosity | | | | Details |
| cncn | concentric | | | | Details |
| CND | Compensated Neutron Density | | | | Details |
| CND | conduit | | | | Details |
| CNDL | Compensated Neutron Density | | | | Details |
| CNFDP | CNFD True Vertical Depth Playback Log | | | | Details |
| CNG | Compressed Natural Gas www.coselle.com | | | | Details |
| CNG | Compressed Natural Gas | | | | Details |
| CNG | Consolidated Natural Gas Supply Company | | | | Details |
| CNGP | CNG Producing Committee | | | | Details |
| CNGR | Compensated Neutron Gamma Ray Log | | | | Details |
| CNI | Conoco Norway Norway | | | | Details |
| CNL | Compensated Neutron Log | | | | Details |
| CNl | Compensated Neutron log Messung | | | | Details |
| CNL | Compensated Neutron Log. | | | | Details |
| CNL | compensated neutron log Radioactive neutron source bombards the formation with high energy neutrons, which are slowed and captured by atoms of the formation The low energy neutrons are reflected back to the tool and counted The amount of neutrons returning is inversely proportional to the porosity of the formation | | | | Details |
| CNLC | China National Logging Company | | | | Details |
| CNLFD | CNL/FDC Log | | | | Details |
| CNLOPB | Canada-Newfoundland and Labrador Offshore Petroleum Board | | | | Details |
| CNLP | Compensated Neutron Log Porosity | | | | Details |
| CNOC | China National Oil Company | | | | Details |
| CNODC | China National Oil & Gas Exploration & Development Corp. (see CSPC) China | | | | Details |
| CNOOC | China National Offshore Oil Corporation China | | | | Details |
| CNP | Compensated Neutron Porosity | | | | Details |
| CNP | Compensated Neutron Log Porosity | | | | Details |
| CNPC | China National Petroleum Corporation | | | | Details |
| CNPC | China National Petroleum Corporation China | | | | Details |
| CNR | Conditioning Run | | | | Details |
| CNR | corner | | | | Details |
| CNS | Central North Sea | | | | Details |
| CNS | Compensated Neutron Service | | | | Details |
| CNSI | Conoco North Sea Inc. Norway | | | | Details |
| CNSOPB | Canada Nova Scotia Offshore Petroleum Board | | | | Details |
| CNSOPB | Canada-Nova Scotia Offshore Petroleum Board | | | | Details |
| CNT | Compensated Neutron Tool | | | | Details |
| CNT | Compensated Neutron | | | | Details |
| CNT | Geochemical Log | | | | Details |
| CNT-A/H | Compensated Neutron Log | | | | Details |
| cntf | centrifuge | | | | Details |
| CNT-G | Dual-Energy Neutron Log | | | | Details |
| cntl | control(s) | | | | Details |
| CNTN | containment | | | | Details |
| cntr | center(d) | | | | Details |
| cntr | container | | | | Details |
| cntr | controller | | | | Details |
| CNTS | Slim Compensated Neutron Tool | | | | Details |
| CNTWT | counter weight | | | | Details |
| Cnty | county | | | | Details |
| cnvr | conveyor | | | | Details |
| cnxns | connections | | | | Details |
| CO | change out (ex. from rod equipment to casing equipment) | | | | Details |
| CO | COLOMBIA | | | | Details |
| CO | circulate out, mud logging term | | | | Details |
| CO | carbon monoxide | | | | Details |
| Co | cobalt | | | | Details |
| CO | Colorado | | | | Details |
| Co | Company | | | | Details |
| co | clean out or cleaning out | | | | Details |
| CO | Carbon Dioxide | | | | Details |
| CO | carbon oxygen | | | | Details |
| CO | circulated out | | | | Details |
| CO | clean out | | | | Details |
| CO | cleaning out, cleaned out | | | | Details |
| CO | crude oil | | | | Details |
| CO & S | clean out & shoot | | | | Details |
| Co. | Op. company operated | | | | Details |
| Co. | Op. S.S. company-operated service stations | | | | Details |
| CO2 | Carbon Dioxide | | | | Details |
| CO2e | carbon dioxide equivalent | | | | Details |
| COA | Contract Of Affreightment | | | | Details |
| CoA | Chart of Accounts | | | | Details |
| COACP | Contract Of Affreightment Charter Party | | | | Details |
| Coal | sedimentary rock, often highly naturally fractured, composed of thermally modified plant remains | | | | Details |
| cob | Close Of Business (day) | | | | Details |
| COBLDN | Closing Of Business LoDoN | | | | Details |
| COBOL | Common Business Oriented Language | | | | Details |
| COBOL | Common Business-Oriented Language | | | | Details |
| CoC | Code of Conduct | | | | Details |
| COC | Certificate of Conformance | | | | Details |
| COC | Cleveland open cup | | | | Details |
| COCHIME | Companie Chimique de la Mediterranee France | | | | Details |
| Coco | Coconino | | | | Details |
| COD | Cash On Delivery | | | | Details |
| COD | Chemical Oxygen Demand | | | | Details |
| COD | CONGO, THE DEMOCRATIC REPUBLIC OF THE | | | | Details |
| COD | Carbon Dioxide Deepening | | | | Details |
| Cod | Codell | | | | Details |
| CODEC | COder DECoder | | | | Details |
| CODESSAS | Cia. Operadora de Estaciones de Servicio S.A. de CV Mexico | | | | Details |
| COE | Center Of Excellence | | | | Details |
| COE | controllable operating expense | | | | Details |
| COE | Corps of Engineers | | | | Details |
| CoED | Chance of Economical Development | | | | Details |
| coef | coefficient | | | | Details |
| CoF | Certificate of Fitness (final part of medical check) | | | | Details |
| COF | Coefficient of Fraction | | | | Details |
| COF | calculated open flow | | | | Details |
| COF | calculated open flow(potential) | | | | Details |
| COFCAW | a tertiary recovery mechanist consisting of combustion and water flooding | | | | Details |
| COG | CONGO | | | | Details |
| COG | coke oven gas | | | | Details |
| COGA | Colorado Oil & Gas Association | | | | Details |
| Cogec | Costieri Genovesi Petroliferi | | | | Details |
| COGSA | Carriage of Goods by Sea Act | | | | Details |
| COH | With Openhole Data Included | | | | Details |
| COK | COOK ISLANDS | | | | Details |
| COL | Collar Log | | | | Details |
| COL | Cost Of Living | | | | Details |
| COL | COLOMBIA | | | | Details |
| COL | collar | | | | Details |
| COL | colored | | | | Details |
| COL | column | | | | Details |
| Col | ASTM Color American Standard Test Method | | | | Details |
| Cole | Jct Coleman Junction | | | | Details |
| coll | collect(ed)(ing)(ion) | | | | Details |
| Colloq | Colloquial (means informal) | | | | Details |
| COLPET | Colombian Petroleum Co. Colombia | | | | Details |
| colr | collar | | | | Details |
| COM | Completion | | | | Details |
| COM | COMOROS | | | | Details |
| Com | Comanche | | | | Details |
| Com | Comatula | | | | Details |
| com | common | | | | Details |
| Com | Pk Comanche Peak | | | | Details |
| Com AVL | Compensated Acoustic Velocity Log | | | | Details |
| Com AVL-G | Compensated Acoustic Velocity | | | | Details |
| Com AVL-N | Compensated Acoustic Velocity | | | | Details |
| Com Den | Compensated Density | | | | Details |
| Com Den-GR | Compensated Density Gamma Ray | | | | Details |
| COMAN | Compositional Analysis | | | | Details |
| comb | combined, combination | | | | Details |
| COMB | combustion | | | | Details |
| COMESA | Cie. Mexicana de Exploraciones S.A. Mexico | | | | Details |
| COMGAS | Companhia de Gas de Sao Paolo Brazil | | | | Details |
| COML | Compaction Log | | | | Details |
| coml | commercial | | | | Details |
| Comm | community, communitized | | | | Details |
| comm | commenced | | | | Details |
| comm | commission | | | | Details |
| comm | communication | | | | Details |
| comm | community | | | | Details |
| COMMEGO | Committee on Geology & Mineral Resources Bulgaria | | | | Details |
| commr | commissioner | | | | Details |
| COMP | Composite Log | | | | Details |
| Comp | complete, completion, completed | | | | Details |
| comp | complete(ed)(tion) | | | | Details |
| comp | nat completed natural | | | | Details |
| compnts | components | | | | Details |
| COMPR | Completion Program Report | | | | Details |
| compr | compressor | | | | Details |
| compr | st compressor station | | | | Details |
| compt | compartment | | | | Details |
| COMPT | components | | | | Details |
| COMPTR | computer | | | | Details |
| COMPU | Computest Report | | | | Details |
| COMRE | Completion Record Log | | | | Details |
| COMT | comment | | | | Details |
| COMUT | commutator | | | | Details |
| CON | Condensate | | | | Details |
| con | consolidated | | | | Details |
| Con Dr. | Continuous Drift | | | | Details |
| conc | concentrate | | | | Details |
| conc | concentric | | | | Details |
| conc | concrete | | | | Details |
| CONCAWE | Conservation of Clean Air and Water in Europe | | | | Details |
| CONCAWE | Oil companies’ European organization for environment, health and safety Belgium | | | | Details |
| conch | conchoidal | | | | Details |
| concl | conclusion | | | | Details |
| cond | condensate | | | | Details |
| cond | condition(ed)(ing) | | | | Details |
| CONDE | Condensate Analysis Report | | | | Details |
| CONDR | Continuous Directional Log | | | | Details |
| condr | conductor ( csq) | | | | Details |
| condr | conductor(pipe) | | | | Details |
| condt | conductivity | | | | Details |
| conf | confidential | | | | Details |
| conf | confirm(ed)(ing) | | | | Details |
| confl | conflict | | | | Details |
| cong | conglomerate(itic) | | | | Details |
| congl | conglomerate (itic) | | | | Details |
| congl | conglomerate | | | | Details |
| CONL | Contact | | | | Details |
| conn | connection | | | | Details |
| cono | conodonts | | | | Details |
| CONOCO | Continental Oil Co. | | | | Details |
| consol | consolidated | | | | Details |
| CONSPAIN | Continental Oil Co. of Spain (Conoco Espanola, S.A.) Spain | | | | Details |
| const | constant | | | | Details |
| const | construction | | | | Details |
| consv | conserve, conservation | | | | Details |
| CONT | CONTainer | | | | Details |
| Cont | Contact Caliper | | | | Details |
| cont(d) | continue(ed) | | | | Details |
| contam | contaminated, contamination | | | | Details |
| contd | continued | | | | Details |
| Contr | contractor | | | | Details |
| contr | resp contractor responsibility | | | | Details |
| contrib | contribution | | | | Details |
| conv | converse | | | | Details |
| CONVT | convector, convection | | | | Details |
| COOH | coming out of hole | | | | Details |
| COOP | Societe Cooperative Des Petroles Egypt | | | | Details |
| co-op | cooperative | | | | Details |
| coord | coordinates | | | | Details |
| coord | coordinate | | | | Details |
| COP | Communitee Of Practice | | | | Details |
| COP | Custom Of Port | | | | Details |
| COP | crude oil purchasing | | | | Details |
| COPAREX | Companie de Participations, de Recherches et d’Exploitations Petrolieres France | | | | Details |
| COPAS | Council of Petroleum Accountants Society | | | | Details |
| COPs | Codes of Practice | | | | Details |
| coq | coquina | | | | Details |
| COR | Coring Run | | | | Details |
| cor | corner | | | | Details |
| COR | Carbon Dioxide Redrill | | | | Details |
| Cor Det | Electro-Magnetic Corrosion Detector | | | | Details |
| CORAN | Core Analysis Report | | | | Details |
| CORC | Cairo Oil Refining Company Egypt | | | | Details |
| CORCO | Commonwealth Oil Refining Co., Inc. | | | | Details |
| CORE | Core Report | | | | Details |
| CORG | Corgun Log | | | | Details |
| CORIB | Coriband Log | | | | Details |
| CORL | Correlation | | | | Details |
| CORLG | Correlation Log | | | | Details |
| COROR | Core Orientation Report | | | | Details |
| Corp | corporation | | | | Details |
| corr | corrected, correction | | | | Details |
| corr | correct(ed)(ion) | | | | Details |
| corr | corrosion | | | | Details |
| corr | corrugated | | | | Details |
| correl | correlation, correlated | | | | Details |
| correl | correlation | | | | Details |
| corres | correspondence | | | | Details |
| CORS | Canadian Operational Research Society | | | | Details |
| COS | Class of Service | | | | Details |
| COS | Canadian Oil Sands | | | | Details |
| COS | Call Out Service | | | | Details |
| COS | carbonyl sulfide | | | | Details |
| COS | Chance of Success | | | | Details |
| COSA | Crude Oil Sales Agreement | | | | Details |
| COSH | hyperbolic cosine | | | | Details |
| COSHH | Control of Substances Hazardous to Health | | | | Details |
| COSMO | Japan | | | | Details |
| COTD | cleaned out to total depth | | | | Details |
| COTH | hyperbolic cotangent | | | | Details |
| Cott | G Cottage Grove | | | | Details |
| Counc | G Council Grove | | | | Details |
| COVA | Netherlands National Petroleum Stockpiling Agency (Stichting Centraal Orgaan Voorraadvorming Aardolieprodukten) Netherlands | | | | Details |
| COW | Crude Oil Washing (for oil pollution recovery from the ocean) | | | | Details |
| COW | Crude Oil Washing | | | | Details |
| COWC | Current Oil Water Contact | | | | Details |
| COX | Carbon Dioxide Recompletion | | | | Details |
| COXY | Carbon/Oxygen Log | | | | Details |
| CP | Cathodic Protection | | | | Details |
| CP | Cloud Point | | | | Details |
| CP | Casing Pressure | | | | Details |
| cp | Centipoise | | | | Details |
| CP | Core Point | | | | Details |
| CP | CLIPPERTON ISLAND | | | | Details |
| CP | casing point | | | | Details |
| cp | centipose(s) | | | | Details |
| cp | chemically pure | | | | Details |
| CP | correlation point | | | | Details |
| Cp | Colo Camp Colorado | | | | Details |
| cp’d | cemented through perforations | | | | Details |
| CPA | Cost per action | | | | Details |
| CPA | Cubic Plus Association | | | | Details |
| CPA | certified public accountant | | | | Details |
| CPA | Canadian Petroleum Association | | | | Details |
| CPAs | Citizen's Proposal Areas | | | | Details |
| CPC | Chinese Petroleum Corporation | | | | Details |
| CPC | casing pressure closed | | | | Details |
| CPC | Chinese Petroleum Corporation, Taiwan Republic of China | | | | Details |
| CPC | Caspian Pipeline Consortium Kazakhstan | | | | Details |
| CPC | Ceylon Petroleum Corporation Sri Lanka | | | | Details |
| CPCL | Chennai Petroleum Corp. Ltd. India | | | | Details |
| CPD | Charterers Pay Dues | | | | Details |
| CPDP | Comite Professionel du Petrole France | | | | Details |
| CPECC | China Petroleum Engineering Construction Corporation | | | | Details |
| CPEL | Corrosion And Protection Evaluation Log | | | | Details |
| CPEMA | Concurrent Production Eng Maintenance Activities | | | | Details |
| CPET | Corrosion And Protection Evaluation Log | | | | Details |
| CPF | Central Processing Facility | | | | Details |
| CPF | casing pressure flowing | | | | Details |
| CPG | Corner Point Geometry | | | | Details |
| CPG | cost per gallon | | | | Details |
| CPI | Computed Petrophysical Interpretation | | | | Details |
| CPI | Carbon Preference Index | | | | Details |
| CPI | CPI Log | | | | Details |
| CPI | CPI log (computer-processed interpretation) | | | | Details |
| CPI | corrugated plate interceptor | | | | Details |
| CPI | PT Caltex Pacific Indonesia Indonesia | | | | Details |
| CPIA | Cathodic Protection Industry Association | | | | Details |
| CPICB | CPI Coriband Log | | | | Details |
| CPIRE | CPI Report | | | | Details |
| CPL | Computed Porosity | | | | Details |
| cplg | coupling | | | | Details |
| CPM | Capital Project Management | | | | Details |
| CPM | cycles per minute | | | | Details |
| CPO | confirming telephone order | | | | Details |
| CPP | Central Processing Plant | | | | Details |
| CPP | Casing Potential Profile | | | | Details |
| CPP | Casing Potential Profile | | | | Details |
| CPPC | CPP | | | | Details |
| CPQ | CLIPPERTON ISLAND | | | | Details |
| CPR | Cardio Pulmonary Resuscitation | | | | Details |
| CPR | Choke Performance Relationship | | | | Details |
| CPR | Cooper River Meridian(Alaska) | | | | Details |
| CPRA | Concurrent Production & Rig Activities (SIMOPS) | | | | Details |
| CPS | central power station | | | | Details |
| CPS | cycles per second | | | | Details |
| CPSC | Consumer Product Safety Commission | | | | Details |
| CPSI | casing pressure shut in | | | | Details |
| CPT | Compliant Piled Tower (Deepwater) | | | | Details |
| CPT | Carriage Paid To | | | | Details |
| CPT | CLIPPERTON ISLAND | | | | Details |
| CPU | central processing unit | | | | Details |
| CPV | Center Pocket Valve | | | | Details |
| CPV | CAPE VERDE | | | | Details |
| CQ | NORTHERN MARIANA ISLANDS | | | | Details |
| CQ | CORAL SEA ISLANDS | | | | Details |
| CQD | Customary Quick Despatch | | | | Details |
| CQG | Crystal Quartz Gauge | | | | Details |
| CQG | Combinable Quartz Gauge | | | | Details |
| CQI | Continuous Quality Improvement | | | | Details |
| CQP | Cement Quality Parameters | | | | Details |
| Cr | Chrome | | | | Details |
| CR | Casing Run | | | | Details |
| CR | Current Rate | | | | Details |
| Cr | Crane | | | | Details |
| CR | Cored | | | | Details |
| CR | COMOROS | | | | Details |
| CR | CORAL SEA ISLANDS | | | | Details |
| CR | COMOROS | | | | Details |
| CR | COSTA RICA | | | | Details |
| Cr | chrome 13Cr is 13% chrome | | | | Details |
| Cr | chromium | | | | Details |
| CR | cold rolled | | | | Details |
| CR | compression ratio | | | | Details |
| CR | Cow Run | | | | Details |
| CR | Con carbon residue(Conradson) | | | | Details |
| cr | moly chrome molybdenum | | | | Details |
| Cr+6 | hexavalent chromium | | | | Details |
| CRA | Corrosion Resistant Alloy (material) | | | | Details |
| CRA | Change Rams | | | | Details |
| CRA | Corrosive Resistive Alloy | | | | Details |
| CRA | corrosion resistant alloy | | | | Details |
| CRA | cased reservoir analysis | | | | Details |
| CRA | chemically retarded acid | | | | Details |
| CRA | Complex Reservoir Analysis | | | | Details |
| CRBD | Coriband-Kerogen Analysis | | | | Details |
| crbd | crossbedded | | | | Details |
| CRC | Coordinating Research Council, Inc. | | | | Details |
| CRC | Czech Refinery Company Czech Rep. | | | | Details |
| CRCMF | circumference | | | | Details |
| Crd | cored | | | | Details |
| CRDL | cradle(s) | | | | Details |
| CRE | Comision Reguladora de Energia Mexico | | | | Details |
| cren | crenulated | | | | Details |
| CRET | Cement Retainer Setting Log | | | | Details |
| Cret | Cretaceous | | | | Details |
| CRET | Cement Retainer | | | | Details |
| CRF | Cost Recovery Factor | | | | Details |
| Crg | coring | | | | Details |
| CRI | COSTA RICA | | | | Details |
| Crin | crinoid(al) | | | | Details |
| Cris | Christellaria | | | | Details |
| crit | critical | | | | Details |
| crk | creek | | | | Details |
| crkg | cracking | | | | Details |
| Crkr | cracker | | | | Details |
| CRL | Cost Recovery Limit | | | | Details |
| CR-MSN | Gamma Ray – Multi-Spaced Neutron Log | | | | Details |
| CRN | crane | | | | Details |
| crn | blk crown block | | | | Details |
| crnk | crinkled | | | | Details |
| CROB | Cargo Remaining OnBoard | | | | Details |
| Crom | Cromwell | | | | Details |
| CRP | control riser platform | | | | Details |
| CRP | common/central reference point (subsea survey) | | | | Details |
| CRP | Control-cum-Riser Platform | | | | Details |
| CRP | Bureau de Recherche de Petrole France | | | | Details |
| CRR | Companie Rhenane de Raffinage France | | | | Details |
| crs | coarse(ly) | | | | Details |
| CRS | cold-rolled steel | | | | Details |
| CRS | cross | | | | Details |
| crs-xln | coarse crystalline | | | | Details |
| CRT | Casing Running Tools | | | | Details |
| CRT | Clamp Replacement tool | | | | Details |
| CRT | cathode ray tube | | | | Details |
| CRU | catalytic reforming unit | | | | Details |
| CRV | curve | | | | Details |
| crypto-xln | cryptocrystalline | | | | Details |
| cryst | crystalline | | | | Details |
| CS | Critical Service (tubing) | | | | Details |
| CS | Con-Slot Filter | | | | Details |
| CS | Completions Supervisor | | | | Details |
| CS | Casing Shoe | | | | Details |
| CS | Cullender and Smith (wellhead gauge) | | | | Details |
| CS | Carbon Steel | | | | Details |
| CS | COSTA RICA | | | | Details |
| CS | SERBIA AND MONTENEGRO | | | | Details |
| CS | casing seat | | | | Details |
| CS | cast steel | | | | Details |
| cs | centistokes | | | | Details |
| CS | Coal Seam Analysis | | | | Details |
| CS - Filter | Con-Slot Filter | | | | Details |
| CS2 | carbon disulfide | | | | Details |
| CSA | Canadian Standard Association Approval (see comment) | | | | Details |
| CSA | casing set at | | | | Details |
| CSAP | Cake Saver Acid Placement (Baker gravel pack tool) | | | | Details |
| CS-AP | Cake Saver Acid Placement (Baker gravel pack tool) | | | | Details |
| CSB | Conventional Sample Bottle (SLB) | | | | Details |
| CSBU | Cullender and Smith build-up (wellhead gauge build-up) | | | | Details |
| CSC | Compania Shell de Colombia Inc. | | | | Details |
| CSCH | hyperbolic constant | | | | Details |
| CSChE | Canadian Society or Chemical Engineering | | | | Details |
| CsCOOH | cesium formate | | | | Details |
| CSDTM | compensated spectral density log | | | | Details |
| CSE | Chemical Systems Engineering | | | | Details |
| CSE | Control Systems Engineering | | | | Details |
| cse | gr coarse grained | | | | Details |
| CSEG | Canadian Society of Exploration Geophysicist | | | | Details |
| CSEM | Controlled Source Electro-Magnetics | | | | Details |
| CSES | Casing Side Entry Sub | | | | Details |
| CsF | Caesium formate (coincidentally also an acronym of the sole large-scale supplier of caesium formate brine, cabot specialty fluids.) | | | | Details |
| CSF | Critical Success Factors | | | | Details |
| CsF | Caesium Formate | | | | Details |
| CSFB | Credit Suisse First Boston | | | | Details |
| Csg | Casing | | | | Details |
| CSG | Coal Seam Gas | | | | Details |
| CSHN | Cased Hole Neutron Log | | | | Details |
| CSI | CSI Log | | | | Details |
| CSIA | Compound Specific Isotope Analysis | | | | Details |
| CSID | Casing Size Internal Diameter | | | | Details |
| CSIS | Center for Strategic and International Studies | | | | Details |
| CSK | countersink | | | | Details |
| CSL | county school lands | | | | Details |
| CSL | center section line | | | | Details |
| CSM | Colorado School of Mines | | | | Details |
| CSMT | Core Sampler Tester Log | | | | Details |
| CSNG | Compensated Spectral Natural Gamma Ray | | | | Details |
| CSO | Capital Staff Overhead | | | | Details |
| CSO | complete seal-off | | | | Details |
| CSPC | China Southern Petroleum Exploration & Development Corp. (formerly CNODC, sub of CNPC)China | | | | Details |
| CSPG | Canadian Society of Petroleum Geologists | | | | Details |
| CSQ | CORAL SEA ISLANDS | | | | Details |
| CSR | Corporate Social Responsibility | | | | Details |
| CSR | Client Satisfaction Report | | | | Details |
| CSS | Check Shot Surveys | | | | Details |
| CSS | Cyclic Steam Stimulation | | | | Details |
| CST | Core Sample Taker; Chronological Sample Taker | | | | Details |
| cSt | centi Stock (unit of viscosity) | | | | Details |
| CST | CentiSToke | | | | Details |
| CST | CST log | | | | Details |
| CST | Side Wall Coring (Core Sampler Taker) | | | | Details |
| CST | Sidewall Coring | | | | Details |
| CST | Sidewall Sampler | | | | Details |
| CST | Customer Steering Tool | | | | Details |
| CSTAK | Core Sample Taken Log | | | | Details |
| CSTH | Weatherford Storm Packer | | | | Details |
| CSTRE | CST Report | | | | Details |
| CSU | Comissioning & Start Up | | | | Details |
| CSU | Control Surface Usage | | | | Details |
| CSUG | Canadian Society for Unconventional Gas | | | | Details |
| csv | Comma Separated Values (a kind of excel file used for txt files) | | | | Details |
| CSV | Comma Separated Value | | | | Details |
| CT | Coiled Tubing | | | | Details |
| CT | Computerized Tomography | | | | Details |
| CT | CENTRAL AFRICAN REPUBLIC | | | | Details |
| CT | see Coiled Tubing | | | | Details |
| CT | Connecticut | | | | Details |
| CT | cable tools or completion tools | | | | Details |
| CT | Chipped Teeth/Cutters | | | | Details |
| CT | cable tools | | | | Details |
| CT | cooling tower | | | | Details |
| CT | Short Line SH 00225 | | | | Details |
| CT1 | CANADATECH 077 (ausgesch.) | | | | Details |
| CT10 | Short Line SH 00071 | | | | Details |
| CT11 | CANADATECH 082 (ausgesch.) | | | | Details |
| CT13 | Short Line SH 50537 (ausges.) | | | | Details |
| CT14 | Short Line SH 50546 | | | | Details |
| CT15 | Short Line SH 50552 | | | | Details |
| CT16 | Short Line SH 50565 | | | | Details |
| CT17 | CANADATECH 50557 (ausgesch.) | | | | Details |
| CT18 | Short Line SH 50666 | | | | Details |
| CT19 | Short Line SH 50668 | | | | Details |
| CT2 | CANADATECH 173 (ausgesch.) | | | | Details |
| CT20 | Short Line SH 50686 | | | | Details |
| CT21 | Short Line SH 05918 | | | | Details |
| CT3 | CANADATECH 5819 (ausgesch.) | | | | Details |
| CT4 | Short Line SH 05914 | | | | Details |
| CT5 | CANADATECH 50168 (ausgesch.) | | | | Details |
| CT6 | CANADATECH 50212 (ausgesch.) | | | | Details |
| CT7 | CANADATECH 50331 (ausgesch.) | | | | Details |
| CT8 | CANADATECH 50438 (ausgesch.) | | | | Details |
| CT9 | Short Line SH 50425 | | | | Details |
| CTC | Contracting Tender Committee | | | | Details |
| CTC | consumer tank car | | | | Details |
| CTCO | Coiled Tubing Clean Out | | | | Details |
| CTD | Coiled Tubing Drilling | | | | Details |
| ctd | coated | | | | Details |
| CTD | corrected total depth | | | | Details |
| CTDESP | coiled tubing deployed electric submersible pump | | | | Details |
| CTE | Center Technical Excellence | | | | Details |
| CTE | coefficient of thermal expansion | | | | Details |
| CTES | Coiled Tubing Engineering Services | | | | Details |
| CTFV | Critical Transfer Fluid Velocity | | | | Details |
| ctg(s) | cuttings | | | | Details |
| CTHF | center of tubing flange | | | | Details |
| CTL | Coal-to-liquid conversion | | | | Details |
| CTL | coiled tubing logging | | | | Details |
| CTL | Cement Top Location | | | | Details |
| CTL | Scattered Gamma Ray | | | | Details |
| CTL | Cemotop | | | | Details |
| CTL | Time Lapse | | | | Details |
| CTLF | Coiled Tubing Lift Frame | | | | Details |
| CTLF | compensated tension lift frame | | | | Details |
| Ctlmn | Cattleman | | | | Details |
| CTM | Conditional Test Method | | | | Details |
| CTM | cable tool measurement | | | | Details |
| CTN | Compensated Thermal Neutron | | | | Details |
| ctn | carton | | | | Details |
| Ctnwd | Cottonwood | | | | Details |
| CTO | confirming telephone order | | | | Details |
| CTOD | crack tip opening displacement | | | | Details |
| CTP | cleaning to pits | | | | Details |
| CTR | Cost Time Resource | | | | Details |
| CTR | Cost Time Resource Sheet | | | | Details |
| CTR | Cost, Time, Resource sheet | | | | Details |
| CTR | controlled tension release tool A release tool for downhole | | | | Details |
| ctr | center | | | | Details |
| CTRAC | Cement Tracer Log | | | | Details |
| CTS | cement to surface | | | | Details |
| CTT | consumer transport truck | | | | Details |
| CTU | Coiled Tubing Unit | | | | Details |
| CTU | Cumulative Tool Usage | | | | Details |
| CTW | consumer tank wagon | | | | Details |
| CU | Cement Unit | | | | Details |
| CU | Clean up | | | | Details |
| CU | capture unit | | | | Details |
| CU | Control Unit | | | | Details |
| CU | CUBA | | | | Details |
| CU | Cubic | | | | Details |
| cu | in. cubic inch | | | | Details |
| cu cm | cubic centimeter | | | | Details |
| cu m | cubic meter | | | | Details |
| cu yd | cubic yard | | | | Details |
| CUB | CUBA | | | | Details |
| CUB | cubical | | | | Details |
| CUFT | CUbicFeeT | | | | Details |
| CUG | computer user group | | | | Details |
| CUI | Corrosion Under Insulation (see comment) | | | | Details |
| culv | culvert | | | | Details |
| cum | cumulative | | | | Details |
| CUP | Clean Up Pit | | | | Details |
| CUPET | Commercial Cupet S.A. Cuba | | | | Details |
| Cur | Curtis | | | | Details |
| cush | cushion | | | | Details |
| CUST | customer | | | | Details |
| CUT | Cutter Log | | | | Details |
| Cut | the fraction of a fluid in a mixture of fluids | | | | Details |
| Cut Oil | cutting oil | | | | Details |
| Cut Oil Act | cutting oil active-sulfurized-dark | | | | Details |
| Cut Oil Act | cutting oil active-sulfurized-transparent | | | | Details |
| Cut Oil | cutting oil inactive-sulfurize | | | | Details |
| Cut Oil Sol | cutting oil soluble | | | | Details |
| Cut Oil St Mrl | cutting oil straight mineral | | | | Details |
| Cut B | cut bank | | | | Details |
| cutbk | cutback | | | | Details |
| Cutl | Cutler | | | | Details |
| CUTTD | Cuttings Description Report | | | | Details |
| cuvar | clean up on various choke sizes | | | | Details |
| CV | Choke Valve (adjustable or fix/positive chokes) | | | | Details |
| CV | Check valve | | | | Details |
| Cv | Coefficient of variation (STD/Mean) | | | | Details |
| CV | CAPE VERDE | | | | Details |
| Cv | Coefficient value | | | | Details |
| CV | control valve | | | | Details |
| CV | Cotton Valley | | | | Details |
| CVAFS | Cold vapour atomic fluorescence spectroscopy | | | | Details |
| CVD | Constant Volume Depletion (an experimental method in PVT analysis) | | | | Details |
| CVD | Constant Volume Depletion | | | | Details |
| CVDC | Cost vs Depth Curve (drilling) | | | | Details |
| cvg(s) | caving(s) | | | | Details |
| CVP | The Group Capital Value Process, essentially the application of the stage gate decision process | | | | Details |
| CVR | cover | | | | Details |
| CVT | Chevron Texaco | | | | Details |
| CVTR | convert(er)(ed) | | | | Details |
| CVX | Chevron | | | | Details |
| CW | Collar Weight | | | | Details |
| CW | Clockwise | | | | Details |
| CW | COOK ISLANDS | | | | Details |
| CW | continuous weld | | | | Details |
| CW | cooling water | | | | Details |
| CWA | clean water act, a US law | | | | Details |
| CWA | Clean Water Act | | | | Details |
| CWA | Clean Water Act | | | | Details |
| CWAV | cost-weighted average volume | | | | Details |
| CWDT | Critical Wax Deposition Temp | | | | Details |
| CWE | cold water equivalent | | | | Details |
| CWE | Collaborative Work Environment | | | | Details |
| CWI | Completion & Well Intervention Engineer | | | | Details |
| CWI | Certified Welding Inspector | | | | Details |
| CWIE | Completion & Well Intervention Engineer | | | | Details |
| CWL | Cyberlook Wellsite Camp | | | | Details |
| CWOP | Coring the Well On Paper | | | | Details |
| CWOP | Complete Well On Paper | | | | Details |
| CWOP | complete well on paper exercise | | | | Details |
| CWOR | Completion Work Over Riser | | | | Details |
| CWOR | completion and workover riser | | | | Details |
| CWP | Cold Working Pressure (see comment) | | | | Details |
| CWP | cold working pressure | | | | Details |
| CWR | Compensated Wave Resistivity tool (PathFinder) | | | | Details |
| CWR | cooling water return | | | | Details |
| CWRGM | Compensated Wave Resistivity Gamma MultiLink | | | | Details |
| CWS | cooling water supplying | | | | Details |
| cwt | hundredweight | | | | Details |
| CWTF | central water treatment facility | | | | Details |
| CX | CONGO, THE DEMOCRATIC REPUBLIC OF THE | | | | Details |
| CX | CHRISTMAS ISLAND | | | | Details |
| CX | crossover | | | | Details |
| CXR | CHRISTMAS ISLAND | | | | Details |
| Cy | Cylinders | | | | Details |
| CY | CYPRUS | | | | Details |
| Cy Sd | Cypress Sand | | | | Details |
| CYBD | Cyberbond Log | | | | Details |
| CYBLK | Cyberlook Log | | | | Details |
| Cyc | cyclamina | | | | Details |
| CYC | cyclone | | | | Details |
| Cycl | cyclone | | | | Details |
| Cycl | canc. Cyclamina cancellata | | | | Details |
| CYDIP | Cyberdip Log | | | | Details |
| CYDIP | Cyberdip | | | | Details |
| CYDN | Cyberdon Log | | | | Details |
| cyl | cylinder | | | | Details |
| CYL | Cyberlock | | | | Details |
| CYLDT | Litho-Density Quicklook | | | | Details |
| CYM | CAYMAN ISLANDS | | | | Details |
| cyn | canyon | | | | Details |
| CYP | CYPRUS | | | | Details |
| Cyp | Cypridopsis | | | | Details |
| CYPL | Production Logging Quicklook | | | | Details |
| CYPRO | Cyberproducts Log | | | | Details |
| CYRFT | Repeat Formation Tester Quicklook | | | | Details |
| CYTDT | Cyberscan | | | | Details |
| CYWST | Seismic Quicklook | | | | Details |
| CZ | CZECH REPUBLIC | | | | Details |
| CZ | Canal zone | | | | Details |
| Cz | Carrizo | | | | Details |
| CZDL | Compensated Z-Densilog | | | | Details |
| CZE | CZECH REPUBLIC | | | | Details |
| CZM | Coastal Zone Management | | | | Details |
| CZMA | Coastal Zone Management Act | | | | Details |
| D & C | drill and complete | | | | Details |
| D&C | Drilling and Completions | | | | Details |
| D&C | Drilling and Completion | | | | Details |
| D/C | Drill Cement | | | | Details |
| DAC | Dipole Acoustic Log | | | | Details |
| DAC | Digital to Analog Converter | | | | Details |
| DAC | Digital Array Acoustilog | | | | Details |
| DAC | Digital-To-Analog Converter | | | | Details |
| DAC | Digital Array Acousticlog sm | | | | Details |
| DACA | Data Aquisition & Control Architecture (Smart) | | | | Details |
| DACC | Drilling and Completions Committee | | | | Details |
| DAFWC | Days Away From Work Case | | | | Details |
| DAPC | Dynamic Annular Pressure Control | | | | Details |
| DARC | Permeability Estimation | | | | Details |
| DARCI | Darci Log | | | | Details |
| DC | Drill Collar (Schwerstange) | | | | Details |
| DC | Discharge Capacity | | | | Details |
| DC | drill centre | | | | Details |
| DC | direct current | | | | Details |
| DC | Drill Collar | | | | Details |
| DC | depth correction | | | | Details |
| DC | District of Columbia | | | | Details |
| DC | delayed coker | | | | Details |
| DC | development well, carbon dioxide | | | | Details |
| DC | diamond core | | | | Details |
| DC | digging cellar or digging cellar and slush pits | | | | Details |
| DC | dually completed | | | | Details |
| DC.K | Dual Completion Kreuz | | | | Details |
| DCA | Development Contract Area | | | | Details |
| DCAF | Discipline Controls & Assurance Framework | | | | Details |
| DCAL | Differential Caliper Log | | | | Details |
| DCAL | dual caliper log | | | | Details |
| DCALI | Dual Caliper Log | | | | Details |
| DCB | diamond core bit | | | | Details |
| DCC | Data Control Centre | | | | Details |
| DCC | Decision Cycle Compression | | | | Details |
| DCC | Decision Cycle Compression e-JMC-Electronic JMC | | | | Details |
| DCE | Direct Contract Employment | | | | Details |
| DCF | Discounted Cash Flow (economics) | | | | Details |
| DCI | Downhole Chemical Injection | | | | Details |
| DCL | Dielectric Constant Log | | | | Details |
| DCLSP | digging slush pits | | | | Details |
| DCM | Dielectric Constant Measurement | | | | Details |
| DCM | distillate cut mud | | | | Details |
| DCM | distillate-cut mud | | | | Details |
| DCP | Downstream Choke Pressure | | | | Details |
| DCQ | Daily Contracted Quantity (Gas supply contract) | | | | Details |
| DCR | Daily Cost Report | | | | Details |
| DCS | Distributed Control System | | | | Details |
| DCSs | Decision Control Systems | | | | Details |
| DCTR | detector | | | | Details |
| DCU | delayed coking unit | | | | Details |
| DDBHC | DDBHC Waveform Log | | | | Details |
| DDCV | deep draft caisson vessel | | | | Details |
| dec | decimal | | | | Details |
| DECC | Department for Energy and Climate Change (United Kingdom) | | | | Details |
| DECC | Department for Energy and Climate Change (UK) | | | | Details |
| decl | decline | | | | Details |
| DECON | Deconvolution | | | | Details |
| decr | decrease | | | | Details |
| decr | decrease(ed)(ing) | | | | Details |
| DECT | Decay Time | | | | Details |
| degc | Degree Celcius | | | | Details |
| Deoco | Deminex Egypt Company | | | | Details |
| DEPC | Depth Control Log | | | | Details |
| desc | description | | | | Details |
| DFE (ACD) | Drill Floor Elevation (Admiralty Chart Datum) | | | | Details |
| DGCA | Directorate General of Civil Aviation | | | | Details |
| DG-Packer | Double Grip Packer | | | | Details |
| DGPC | Directorate General of Petroleum Concessions | | | | Details |
| Dgt Tp Rec | Digital Tape Recording | | | | Details |
| DHC | Down Hole Camera (Eline) | | | | Details |
| DHC | Depositional History Curve | | | | Details |
| DHC | downhole controller | | | | Details |
| DHC | Down Hole Caliper | | | | Details |
| DHC | dry-hole contribution | | | | Details |
| DHC | Dry Hole Cost | | | | Details |
| DHCP | Dynamic Host Configuration Protocol | | | | Details |
| DHFC | Down Hole Flow Control | | | | Details |
| DHFC | downhole flow control | | | | Details |
| DIBHC | DIS BHC Log | | | | Details |
| dichlor | dichloride | | | | Details |
| DICOL | Distribuidora de Combustiveis e Lubrificantes da Guinea Bissau Lda. Portugal | | | | Details |
| DIOCO | DEMINEX Egypt Co. Egypt | | | | Details |
| Dip Rec | Dip Log Digital Log Dgt | | | | Details |
| DIPC | Basic Diplog Computation | | | | Details |
| Disc | Discorbis | | | | Details |
| disc | discount | | | | Details |
| disc | discover(ed)(ing)(ion) | | | | Details |
| Disc. | grav. Discorbis gravelli | | | | Details |
| Disc. | norm. Discorbis normada | | | | Details |
| Disc. | y. Discorbis yeguaensis | | | | Details |
| disch | discharge | | | | Details |
| DLC | dual lower tubing | | | | Details |
| DNSCM | Density Neutron Standoff Caliper MultiLink | | | | Details |
| DOC | Declaration Of Commerciality | | | | Details |
| DOC | Daniel Oil Calculation | | | | Details |
| DOC | drilled or drilling out cement | | | | Details |
| DOC | diesel oil well | | | | Details |
| Doc | Dockum | | | | Details |
| doc | document | | | | Details |
| DOC | drilled-out cement | | | | Details |
| DOCREQ | Document request | | | | Details |
| doc-tr | doctor-treatment | | | | Details |
| DODC | Development Operations Coordination Document (US Govt GoM Well Permit applic form) | | | | Details |
| DPC | Dew Point Control | | | | Details |
| DPC | Dubai Petroleum Company | | | | Details |
| DPC | Datum Plane of Computation | | | | Details |
| DPC SCE | Perforating-Ceramic | | | | Details |
| DQLC | Dipmeter Quality Control Log | | | | Details |
| Dr Crk | Dry Creek | | | | Details |
| DRLCT | Drilling Chart | | | | Details |
| DSC | Dubai Shipping Company | | | | Details |
| DSC | Differential Scanning Calorimetry (see comment) | | | | Details |
| DSCAN | DSC Analysis Report | | | | Details |
| dscfm | dry standard cubic feet per minute | | | | Details |
| DTC | Delta T Compressional (log). | | | | Details |
| DTC | Doha Training Center (Schlumberger's base in Doha) | | | | Details |
| DTCO | Sonic Compressional | | | | Details |
| DUC | dual upper casing | | | | Details |
| DUC | Dansk Underground Consortium Denmark | | | | Details |
| DUPETCO | Dubai Petroleum Co. Dubai | | | | Details |
| Dutch | Dutcher | | | | Details |
| DwC | Drilling with Casing | | | | Details |
| DWC | drilling and well completion | | | | Details |
| DWCC | Downhole Wet- Connector Compensation | | | | Details |
| DWCH | Downhole Wet- Connector Head | | | | Details |
| DWCS | Deep Water Control System | | | | Details |
| DXC | DXC Pressure Pilot Report | | | | Details |
| DZPC | Dair al-Zur Petroleum Company | | | | Details |
| E/C | Equipment check | | | | Details |
| EAGC | European Autumn Gas Conference | | | | Details |
| EAOC | Exxon Azerbaijan Operating Company | | | | Details |
| EC | European Commission | | | | Details |
| EC | East Coast | | | | Details |
| EC | Energy Component (company that built PIMMS) | | | | Details |
| EC | ECUADOR | | | | Details |
| EC | Essentiality Certificate | | | | Details |
| EC | European Commission (—) | | | | Details |
| ECA | Export Credit Agency | | | | Details |
| E-cat | equilibrium catalyst | | | | Details |
| ECATWW-L | Wireline department in GAE | | | | Details |
| ECB | Economic Commission Board | | | | Details |
| ECC | Emergency Control Center | | | | Details |
| ECC | eccentric | | | | Details |
| ECC | Tool Eccentricity Image Enhancement | | | | Details |
| ECCN | Export Control and Compliance Number | | | | Details |
| ECD | Equivalent Circulating Density | | | | Details |
| ECGD | Export Credits Guarantee Department | | | | Details |
| Ech | echinoid | | | | Details |
| ECL | Eclipse | | | | Details |
| ECM | East Cimarron Meridian(Oklahoma) | | | | Details |
| ECMOR | European Conference on the Mathematics of Oil Recovery | | | | Details |
| ECN | Netherlands Energy Research Foundation (Energieonderzoek Centrum Nederland) Netherlands | | | | Details |
| ECO | Ecoscope | | | | Details |
| Econ | economics, economy, economizer | | | | Details |
| ECOPETROL | Empresa Colombiana de Petroleos Colombia | | | | Details |
| ECoS | Economical Chance of Success | | | | Details |
| ECP | External Casing Packer | | | | Details |
| ECR | Emergency Command Room | | | | Details |
| ECR | Emergency Control Room | | | | Details |
| ECR | Employment Change Request | | | | Details |
| ECRD | Electrically Controlled Release Tool | | | | Details |
| ECS | Elemental Capture Spectroscopy Sonde | | | | Details |
| ECS | Elemental Capture Sonde | | | | Details |
| ECT | Engineering Completion & Test | | | | Details |
| Ect | Ector(County, TX) | | | | Details |
| ECTFE | thermoplastic fluoropolymer | | | | Details |
| eCTU | electric line coiled tubing unit | | | | Details |
| ECU | ECUADOR | | | | Details |
| ECUWAS | Economic Cummunity of West African States | | | | Details |
| EDC | Egyption Drilling Company | | | | Details |
| EDC | Ethylene Dichloride | | | | Details |
| EDCTN(R) | education(tor) | | | | Details |
| Educ | education | | | | Details |
| EEC | Eastern European Time | | | | Details |
| EEC | Energy Equity Corp. Ltd. Australia | | | | Details |
| EFC | Egyptian Fertilizers Company | | | | Details |
| EFIC | Egyptian Financial and Industrial Company | | | | Details |
| EGPC | Egyptian General Petroleum Corporation | | | | Details |
| EGPC | Egyptian General Petroleum Corp. Egypt | | | | Details |
| EHC | Equivalent Hydrocarbon Column | | | | Details |
| EIC | Engineer In Charge | | | | Details |
| ELC | Europe Learning Center (Schlumberger's base in France) | | | | Details |
| elec | electric(al) | | | | Details |
| Elec/MAG | electromagnetic | | | | Details |
| EMALCO | Empresa Almacenadora de Combustibles Ltda. Chile | | | | Details |
| EMC | EPA Emission Measurement Center | | | | Details |
| EMPSC | Egypt Mobile Phone Services Company | | | | Details |
| ENACOL | Empresa Nacionale de Combustiveis, SARL Cape Verde | | | | Details |
| encl | enclosure | | | | Details |
| ENIAC | Electronic Numerical Integrator And Computer | | | | Details |
| ENOC | Emirates National Oil Company | | | | Details |
| ENTELEC | Energy Telecommunications & Electrical Association | | | | Details |
| EOC | Equivalent Oil Column | | | | Details |
| EOC | end of curve | | | | Details |
| Eoc | Eocene | | | | Details |
| EPC | Engineering, Procurement and Construction | | | | Details |
| EPC | Engineering, Procurement, Construction | | | | Details |
| EPC | Ethiopian Petroleum Enterprise Ethiopia | | | | Details |
| EPC | Egyptian Petrochemicals Company Egypt | | | | Details |
| EPCA | Energy Policy and Conservation Act of 2000 | | | | Details |
| EPCA | Energy Policy and Conservation Act | | | | Details |
| EPCC | Engineer Procure Construct Commission | | | | Details |
| EPCM | Engineering, Procurem, Construction and Management | | | | Details |
| EPCRA | Emergency Planning and Community Right-to-Know Act | | | | Details |
| EPCRA | Emergency Planning and Community Right –To-Know Act ( Title III of SARA, commonly called Right-To-Know or SARA Title III) | | | | Details |
| EPCU | Electrical Power Conditioning Unit | | | | Details |
| Epedeco | Egyptian Petroleum Development Company | | | | Details |
| EPIC | Engineering, Procurement, Installation and Commissioning | | | | Details |
| EPICO | Engineer Procure Install Construct Operate | | | | Details |
| EPLPC | EPL-PCD-SGR Log | | | | Details |
| EPXRTC | Regional Technical Directorate. Team that inherits the project after Exploration has found and appraised them. | | | | Details |
| EPX-RTC | Regional Technical Directorate. Team that inherits the project after Exploration has found and appraised them. | | | | Details |
| ERC | Emissions Reduction Credit | | | | Details |
| ERC/MK | erection mark | | | | Details |
| ERCB | Energy Resources Conservation Board | | | | Details |
| ERCB | Energy Resources Conservation Board, Alberta | | | | Details |
| ERCB | Energy Resource Conservation Board (Alberta, Canada) | | | | Details |
| erect | erection | | | | Details |
| Eric | Ericson | | | | Details |
| ESCWA | Economic and Social Commission for West Asia | | | | Details |
| ESPCP | Electric Submersible Progressive Cavity Pump | | | | Details |
| ETC | Expected Time of Completion | | | | Details |
| etc | et cetera (and the rest) | | | | Details |
| EUROCORD | European Federation of Twine, Cordage and Netting Industries | | | | Details |
| EXC | Excitation | | | | Details |
| exc | Excavation | | | | Details |
| exch | Exchanger | | | | Details |
| EXCL | EXCLusive | | | | Details |
| excl | excellent | | | | Details |
| EXEC | Executive | | | | Details |
| EXPEC | Exploration and Petroleum Engineering Center | | | | Details |
| EXPEC-ARC | Exploration and Petroleum Engineering Center’s Advanced Research Center | | | | Details |
| extrac | extraction | | | | Details |
| EYC | estimated yearly consumption | | | | Details |
| F/C | Flow check | | | | Details |
| FAC | Factual Report | | | | Details |
| FAC | First Aid Case (see comment) | | | | Details |
| FAC | Fast As Can | | | | Details |
| fac | facet(ed) | | | | Details |
| FACHV | Four Arm Caliper Log | | | | Details |
| FACIL | facility(ies) | | | | Details |
| FACO | field authorized to commence operations | | | | Details |
| FASC | Fullbore Annular Sample Chamber | | | | Details |
| FBCV | Full Bore Circulating Valve | | | | Details |
| FC | Float Collar | | | | Details |
| FC | Flow Check | | | | Details |
| fc | Forecasting | | | | Details |
| FC | Flat Crested Wear | | | | Details |
| FC | fluorocarbon A aromatic resistant seal material | | | | Details |
| FC | filter cake | | | | Details |
| FC | fixed carbon | | | | Details |
| FCA | Free CArrier | | | | Details |
| FCAL | Single Axis Caliper | | | | Details |
| FCC | fluid catalytic cracking | | | | Details |
| FCC | Federal Communications Commission | | | | Details |
| FCCU | fluid catalytic cracking unit | | | | Details |
| FCD | Fracture Conductivity (dimensionless) | | | | Details |
| FCD | fracture capacity – a comparison of the conductivity of the fracture to the capacity of the formation | | | | Details |
| FCIBHP | Final Closed In Bottom Hole Pressure | | | | Details |
| FCL | facility capacity limits | | | | Details |
| FCO | functional check out | | | | Details |
| FCOL | Fluid Coloration (see comment!) | | | | Details |
| FCON | Fluid Conductivity Log | | | | Details |
| FCP | Final circulating pressure | | | | Details |
| FCP | First Calgary Petroleums Ltd. | | | | Details |
| FCP | Fracture Closing Pressure | | | | Details |
| FCP | fracture closure pressure A measurement of the pressure at which the fractured formation closes Generally determined by the change in slope of the pressure reading as leakoff gradually lessens the volume of fluid that is holding the fracture open, until the fracture walls meet and the pressure reverts to a decline to pore pressure | | | | Details |
| FCP | flowing casing pressure | | | | Details |
| FCU | fluid coking unit | | | | Details |
| FCV | Flow Control Valve | | | | Details |
| FCV | formation control valve | | | | Details |
| FCVE | F Curve Log | | | | Details |
| FDC | Formation Density Compensated Log | | | | Details |
| FDC | Formation Density Log | | | | Details |
| FDC | Formation Density Logging | | | | Details |
| FDC | Caliper | | | | Details |
| FDC | formation Density Caliper | | | | Details |
| FDC | formation density correlated | | | | Details |
| FDC | Formation Density | | | | Details |
| FDC-GR | Formation Density-Gamma Ray Logging | | | | Details |
| FDCNL | formation density compensated neutron log | | | | Details |
| FDGC | Federal Geographic Data Committee | | | | Details |
| FDRC | Capacitance water holdup tool (in PLT tool) | | | | Details |
| FEC | Fonds d’Equipement Communal | | | | Details |
| FeCO3 | iron carbonate scale | | | | Details |
| FERC | Federal Energy Regulatory Commission (US gov agency) | | | | Details |
| FERC | U.S. Federal Energy Regulatory Commission | | | | Details |
| FERC | Federal Energy Regulatory Commission | | | | Details |
| FFAC | Formation Factor Log | | | | Details |
| FFC | full fuel cycle | | | | Details |
| FHINC | Friday Holidays INCluded. (Muslim Countries) | | | | Details |
| FIAC | Four Independent Arm Caliper | | | | Details |
| FIC | flow-indicating controller | | | | Details |
| FINCO | Finance Committee | | | | Details |
| FIOC | First International Oil Company Kazakhstan | | | | Details |
| FIRC | flow indicating ratio controller | | | | Details |
| FLC | Fluid Loss Control | | | | Details |
| Fl-COC | flash point, Cleveland Open Cup | | | | Details |
| FMC | Federal Maritime Commission | | | | Details |
| Fmc | Formation Change | | | | Details |
| FMCS | Continuous Spinner Flowmeter | | | | Details |
| FMECA | Failure Modes, Effects, and Criticality Analysis | | | | Details |
| FMECA | failure mode and criticality effects analysis | | | | Details |
| FMTC | FMT Analysis | | | | Details |
| FOC | field operations center | | | | Details |
| FOCL | Focus | | | | Details |
| FOCL | focused log | | | | Details |
| FPC | see Free Point Constant Used in stuck pipe depth calculations | | | | Details |
| FPC | Federal Power Commission | | | | Details |
| FQC | Field Quality Champion | | | | Details |
| FRAC | Frac Log DIP | | | | Details |
| FRAC L | Frac Log | | | | Details |
| frac(d)(s) | fracture, fractured, fractures | | | | Details |
| frac, fract | fracture, fractured | | | | Details |
| FRAC/GR | Frac Log-Gamma Ray DIP | | | | Details |
| FRAC-GR | Frac Log-Gamma Ray Log | | | | Details |
| fract | fractionation, fractionator, fractional | | | | Details |
| Franc | Franconia | | | | Details |
| FRANCAREP | Compagnie Franco-Afrique de Recherches Petrolieres France | | | | Details |
| FRC | Fire Retardant Clothing (Treated cotton) | | | | Details |
| FRC | Fast Rescue Craft | | | | Details |
| FRC | fire retardant clothing | | | | Details |
| FRC | flow recorder control | | | | Details |
| Ft C | Fort Chadborne | | | | Details |
| FTC | France Training Center (Schlumberger's base in Melun/France for training) | | | | Details |
| FTC | Federal Trade Commission | | | | Details |
| ft-c | foot-candle | | | | Details |
| FWC | field wildcat | | | | Details |
| FWPCA | Federal Water Pollution Control Act | | | | Details |
| G&MCO | gas & mud cut oil | | | | Details |
| G&MCO | gas & mud-cut oil | | | | Details |
| G&OCM | gas & oil cut mud | | | | Details |
| G&OCM | gas- and oil-cut mud | | | | Details |
| G/C | Gas Condensate | | | | Details |
| GAIC | Gulf Arab Investment Company | | | | Details |
| gal/Mcf | gallons per thousand cubic feet | | | | Details |
| GAOCMAO | Gulf Area Oil Companies Mutual Aid Organization (—) | | | | Details |
| GAPPCO | Gas Processing and Pipeline Company | | | | Details |
| Gasco | Gas Industries Company | | | | Details |
| GASCO | Abu Dhabi Gas Industries Ltd | | | | Details |
| GASCO | Abu Dhabi Gas Industries Ltd. Abu Dhabi | | | | Details |
| GASCO | Egyptian Natural Gas Co. Egypt | | | | Details |
| gas-cut | salt water | | | | Details |
| GC | Gas Chromatograph (hydrocarbon analysis) | | | | Details |
| GC | Gauge Cutter (a tool of wireline or slickline used to prove the min ID is open w/o pluging) | | | | Details |
| GC | Gauge Carrier (Expro tool) | | | | Details |
| GC | Gas Chromatograph | | | | Details |
| GC | Gas Chromatography | | | | Details |
| GC | gathering center | | | | Details |
| GC | gas cut | | | | Details |
| GC | gas-cut | | | | Details |
| GC/MS | gas chromatography-mass spectrometry | | | | Details |
| GCAA | General Civil Aviation Authority (UAE) | | | | Details |
| Gcal | gigacalorie | | | | Details |
| g-cal | gram calorie | | | | Details |
| GCAW | gas cut acid water | | | | Details |
| GCAW | gas-cut acid water | | | | Details |
| GCC | Gulf Cooperation Council | | | | Details |
| GCC | Gulf Cooperation Council Middle East | | | | Details |
| GCD | Gamma Compensated Density | | | | Details |
| GCD | gas-cut distillate | | | | Details |
| GCDB | Geographic Coordinate Database | | | | Details |
| GCI | gas cap injection | | | | Details |
| GCLO | gas cut load oil | | | | Details |
| GCLO | gas-cut load oil | | | | Details |
| GCLOG | Graphic Core Log | | | | Details |
| GCLW | gas cut load water | | | | Details |
| GCLW | gas-cut load water | | | | Details |
| GCM | gas cut mud | | | | Details |
| GCM | gas-cut mud | | | | Details |
| GCMS | Gas Chromatography Mass Spectroscopy | | | | Details |
| GCO | gas cut oil | | | | Details |
| GCO | gas-cut oil | | | | Details |
| GCoS | Geological Chance of Success | | | | Details |
| GCPA | gas cap participating area | | | | Details |
| GCPD | gallons condensate per day | | | | Details |
| GCPH | gallons condensate per hour | | | | Details |
| GCR | gas condensate ratio | | | | Details |
| GCR | gas-condensate ratio | | | | Details |
| GCRD | Gamma Guard | | | | Details |
| GCSW | gas cut salt water | | | | Details |
| GCSW | gas-cut salt water | | | | Details |
| GCT | GCT Log | | | | Details |
| GCT | guidance continuance tool | | | | Details |
| GCT | Guidance Continuous Log | | | | Details |
| GCV | gas control valve | | | | Details |
| GCW | gas cut water | | | | Details |
| GCW | gas-cut water | | | | Details |
| GEOCH | Geochemical Evaluation | | | | Details |
| GIC | Gulf Investment Corporation | | | | Details |
| GIIC | Gulf Industrial Investment Company | | | | Details |
| Gilc | Gilcrease | | | | Details |
| GISCO | Gas Investments and Service Company Ltd. | | | | Details |
| glauc | glauconitic | | | | Details |
| glyc | glycol | | | | Details |
| gm-cal | gram-calorie | | | | Details |
| GNEC | General Nuclear Engineering Co. | | | | Details |
| GNPC | Ghana National Petroleum Corp. Ghana | | | | Details |
| GNPOC | Greater Nile Petroleum Operating Co. Egypt | | | | Details |
| GOC | Gas Oil Contact | | | | Details |
| GOC | gas / oil contact | | | | Details |
| GOC | gas-oil contact | | | | Details |
| GPC | General Petroleum Company | | | | Details |
| GPC | gas purchase contract | | | | Details |
| GPC | The General Petroleum Co. Egypt | | | | Details |
| GPIC | Gulf Petrochemical Industries Company | | | | Details |
| GR CH | Gamma Ray Cased Hole | | | | Details |
| GR&DC | Gulf Research and Development Company | | | | Details |
| GR/CALD | Gamma Ray/Dual Caliper | | | | Details |
| GR/D CALIPER | Gamma Ray/Dual Caliper | | | | Details |
| gr/dscf | grains per dry standard cubic foot | | | | Details |
| GRC | GREECE | | | | Details |
| GRDC | Gamma Ray Depth Control | | | | Details |
| GRN CH | Gamma Ray Neutron-Cased Hold | | | | Details |
| GSC | gas sales contract | | | | Details |
| Gscm | giga standard cubic meters (one billion standard cubic meters) | | | | Details |
| GSPC | Gujarat State Petroleum Corp. Ltd. India | | | | Details |
| GTC | Glopbal Technical Consultant | | | | Details |
| GTC | General Terms and Conditions | | | | Details |
| GTC | Gas Technology Canada | | | | Details |
| Gupco | Gulf of Suez Petroleum Company | | | | Details |
| GUPCO | Gulf of Suez Petroleum Co. Egypt | | | | Details |
| GWC | Gas Water Contact | | | | Details |
| GWC | gas-water contact | | | | Details |
| GWDC | Great Wall Drilling Company | | | | Details |
| GWPC | Ground Water Protection Council | | | | Details |
| H/C | hydrocracker | | | | Details |
| Hackb | Hackberry | | | | Details |
| HARC | Hazard Analysis & Risk Control | | | | Details |
| Hatch | the opening on a tank | | | | Details |
| HBC | High Resolution Borehole Sonic | | | | Details |
| HC | High Case | | | | Details |
| HC | Hydrocarbons | | | | Details |
| HC | Hydro-Carbons | | | | Details |
| HC | High Collapse (tubing) | | | | Details |
| HC | Heat Checking | | | | Details |
| HC | Hughes Christensen | | | | Details |
| HC | Hydrocarbon | | | | Details |
| HC | hydrocracker | | | | Details |
| HCAL | HRCC Calliper (in Logs)(in Inches) | | | | Details |
| HCCS | Horizontal Clamp Connection System | | | | Details |
| HCDS | Hydrocarbon or Gas Detection | | | | Details |
| HCDS | hydrocarbon drain system | | | | Details |
| HCE | Category Estimation | | | | Details |
| HCGO | heavy coker gas oil | | | | Details |
| HCI | Core Data Import | | | | Details |
| HCIP | Hydrocarbon in Place | | | | Details |
| HCl | see hydrochloric acid | | | | Details |
| HCl | hydrogen chloride | | | | Details |
| HClO2 | chlorine dioxide, a bacteria killer | | | | Details |
| HCLS | Heave Compensating Lift/Landing System (for subsea tree deployment) | | | | Details |
| HCM | Human Capital Management | | | | Details |
| HCM | Horizontal Connection Module. To connect the Xmas Tree to the Manifold | | | | Details |
| HCM | Hole Condition Monitoring | | | | Details |
| HCN | hydrogen cyanide | | | | Details |
| HCO | heavy cycle oil | | | | Details |
| HCPV | Hydrocarbon Pore Volume | | | | Details |
| HCR | High Closing Ratio or Hydraulic Control Remote (see comment) | | | | Details |
| HCS | OSHA Hazard Communication Standard (Worker Right-To-Know) | | | | Details |
| HCS | Hydraulic Cleanout Service | | | | Details |
| HCT | Higher College of Technology | | | | Details |
| HCV | Hard Control Valve (type of valveused for controlling sluges in EWT) | | | | Details |
| HCV | hand-control valve | | | | Details |
| HEC | hydroxyethyl cellulose | | | | Details |
| HEC | hydroxyl ethyl cellulose, a synthetic polymer | | | | Details |
| HGCM | heavily (highly) gas cut mud | | | | Details |
| HGCM | heavily(highly) gas-cut mud | | | | Details |
| HGCSW | heavily (highly) gas cut salt water | | | | Details |
| HGCSW | heavily(highly) gas-cut salt water | | | | Details |
| HGCW | heavily (highly) gas cut water | | | | Details |
| HGCW | heavily(highly) gas-cut water | | | | Details |
| HIC | Hydrogen-induced Cracking | | | | Details |
| HIC | Hydrogen Induced Cracking | | | | Details |
| Hick | Hickory | | | | Details |
| HISC | Hydrogen induced stress cracking | | | | Details |
| HO&GCM | heavily (highly) oil & gas cut mud | | | | Details |
| HO&GCM | heavily(highly) oil- and gas-cut mud | | | | Details |
| HOC | Hazard Observation Caused | | | | Details |
| HOC | Hindustan Organic Chemicals Ltd. India | | | | Details |
| hock | hockleyensis | | | | Details |
| HOCM | heavily (highly) oil cut mud | | | | Details |
| HOCM | heavily(highly) oil-cut mud | | | | Details |
| HOCSW | heavily (highly) oil cut salt water | | | | Details |
| HOCSW | heavily(highly) oil-cut salt water | | | | Details |
| HOCW | heavily (highly) oil cut water | | | | Details |
| HOCW | heavily(highly) oil-cut water | | | | Details |
| HPCL | Hindustan Petroleum Corporation Limited | | | | Details |
| HPCL | Hindustan Petroleum Corporation Ltd. India | | | | Details |
| HRCC | High Resolution Control Cartridge | | | | Details |
| HRCC | HCAl of Calliper (in Inches) | | | | Details |
| HRCH | Hostile Releasable Cablehead (see comment!) | | | | Details |
| HS CBL | H2S Cable | | | | Details |
| HSC | Hydrogen Stress Cracking | | | | Details |
| HUC | Hook Up ? (offshore) | | | | Details |
| HVAC | Heating, Ventilating and Air-Conditioning | | | | Details |
| HVAC | heating ventilating and air conditioning | | | | Details |
| HVC | Hydraulically Variable Choke | | | | Details |
| HVDC | High Voltage Direct Current | | | | Details |
| HWC | High Water Cut | | | | Details |
| HWCM | heavily (highly) water cut mud | | | | Details |
| HWCM | heavily(highly) water-cut mud | | | | Details |
| HYDCA | Hydril Type CA joint | | | | Details |
| HYDCS | Hydril Type CS Joint | | | | Details |
| HYDRO-Congo | National Oil Exploration and Exploitation Corp. Congo | | | | Details |
| I/C | interconnection(ing) | | | | Details |
| I/CFD | interconnecting flow diagram | | | | Details |
| IACMAG | International Association of Computer Methods and Geomechanics | | | | Details |
| IACO | International Civil Aviation Organization | | | | Details |
| IADC | International Association of Drilling Contractors | | | | Details |
| IADC | International Association of Drilling Contractors (formerly AAODC) | | | | Details |
| IAGC | International Association of GeoChemistry | | | | Details |
| IAGC | International Association of Geophysical | | | | Details |
| IARC | Inter Arab Ratings Company | | | | Details |
| IARC | International Agency for Research on Cancer | | | | Details |
| IBBC | iron body brass core(valve) | | | | Details |
| IBC | Intermediate Bulk Container | | | | Details |
| IBCA | International Banking Credit Agency | | | | Details |
| IC | Ion Chromatography | | | | Details |
| IC | Integrated Circuit | | | | Details |
| IC | ICELAND | | | | Details |
| IC | inner casing | | | | Details |
| IC | iron case | | | | Details |
| ICAL | Imaging Caliper | | | | Details |
| ICAO | International Civil Aviation Organization | | | | Details |
| ICAP/MS | inductively coupled argon plasma/mass spectrometry | | | | Details |
| ICC | International Criminal Court | | | | Details |
| ICC | Interstate Commerce Commission | | | | Details |
| ICD | Inflow Control Device | | | | Details |
| ICD | Inflow Control Devices | | | | Details |
| ICE | Integrated Charge Evaluation | | | | Details |
| ICE | InterContinental Exchange | | | | Details |
| ICEED | International Research Center for Energy and Economic Development | | | | Details |
| icfos | microfossil(iferous) | | | | Details |
| ICGP | Inside Casing Gravelpack | | | | Details |
| ICGPW | Inside Casing Gravelpack Wechsel | | | | Details |
| ICGTI | International Centre for Gas Technology Information IEA | | | | Details |
| ICI | Imperial Chemical Industries Ltd. UK | | | | Details |
| ICIANZ | Imperial Chemical Industries of Australia & New Zealand Ltd. UK | | | | Details |
| ICJ | International Court of Justice | | | | Details |
| ICMS | Inspection and Corrosion Management System | | | | Details |
| ICoTA | Intervention and Coiled Tubing Association | | | | Details |
| ICOTA | International Coiled Tubing Operators Association | | | | Details |
| ICP | Intermediate Casing Point | | | | Details |
| ICP | Iron Couple Plasma | | | | Details |
| ICP | inflatable casing packer | | | | Details |
| ICP | inside casing gravel pack | | | | Details |
| ICP | initial circulating pressure | | | | Details |
| ICPA | International Cooperative Petroleum Assn. Netherlands | | | | Details |
| ICP-OES | inductive coupled plasma optical emission spectroscopy | | | | Details |
| ICR | information collection request | | | | Details |
| ICS | Incident Command System | | | | Details |
| ICS | Customer Instrument Service | | | | Details |
| Icsg | Intermediate Casing | | | | Details |
| ICSS | Integrated Controls and Safety System | | | | Details |
| ICSU | Integrated Commissioning and Start Up | | | | Details |
| ICV | Inflow/Interval/Injection Control Valve (smart completion equipment) | | | | Details |
| ICV | Integrated Cement Volume (of Borehole)(in Cubic Metres) | | | | Details |
| ICV | Interval Control Valve | | | | Details |
| ICV | Inflow Control Valve | | | | Details |
| ICV | Inflow Control Valves | | | | Details |
| IDC | Intangible Drilling Costs | | | | Details |
| IDCS | Integrated Distribution Control System. | | | | Details |
| IDSC | Information and Decision Support Center | | | | Details |
| IEOC | International Egyptian Oil Company | | | | Details |
| IEOC | International Egyptian Oil Co., Inc. Egypt | | | | Details |
| IFC | International Finance Corporation | | | | Details |
| IFC | International Finance Corporation World Bank | | | | Details |
| iGOC | Initail Gas Oil Contact | | | | Details |
| IHCIP | Initial HydroCarbon In Place | | | | Details |
| IHRDC | International Human Resources Development Company | | | | Details |
| IIRC | If I recall correctly | | | | Details |
| IJGC | Inter-Jordan Gas Company | | | | Details |
| ILC | Independent Learning Center (PI) | | | | Details |
| IMC | Interface Management Center | | | | Details |
| IMCA | International Marine Contractors Association | | | | Details |
| in./sec | inches per second | | | | Details |
| Inact | S | | | | Details |
| Inc | Inclination | | | | Details |
| INC | Iraqi National Congress | | | | Details |
| inc | Inconel Alloys (see comment) | | | | Details |
| INC | Increase | | | | Details |
| inc | increment | | | | Details |
| Inc. | incorporated | | | | Details |
| incd | incandescent | | | | Details |
| INCIN | incinerator, incineration | | | | Details |
| incl | inclusions | | | | Details |
| INCL | Inclination | | | | Details |
| incl | include(ed)(ing) | | | | Details |
| INCLR | intercooler | | | | Details |
| incls | inclusions | | | | Details |
| INCM | income(er)(ing) | | | | Details |
| INCR | Incline Report | | | | Details |
| incr | increase (d) (!gg) | | | | Details |
| incr | increase(ed)(ing) | | | | Details |
| INCRE | Incline Report | | | | Details |
| indic | indicate(s)(tion) | | | | Details |
| INJEC | Injection Falloff Log | | | | Details |
| INOC | Iraq National Oil Company | | | | Details |
| Inoc | Inoceramus | | | | Details |
| INOC | Iraq National Oil Company Iraq | | | | Details |
| INPC | Irish National Petroleum Corp. Ltd. Ireland | | | | Details |
| intclr | intercooler | | | | Details |
| INTCON | interconnection | | | | Details |
| Investcorp | Arabian Investment Banking Corporation | | | | Details |
| IOC | International Oil Company | | | | Details |
| IOC | Indian Oil Corporation, Ltd. | | | | Details |
| IOC | Indian Oil Corporation | | | | Details |
| IOC | Indian Oil Company India | | | | Details |
| IOCA | Independent Oil Compounders Association | | | | Details |
| IOCC | Interstate Oil Compact Commission (became IOGCC in 1991) | | | | Details |
| IOCC | Interstate Oil Compact Commission | | | | Details |
| IOEC | Iranian Offshore Engineering Construction Company | | | | Details |
| IOGCC | Interstate Oil and Gas Compact Commission | | | | Details |
| IOGCC | Interstate Oil & Gas Compact Commission | | | | Details |
| IOOC | Iranian Offshore Oil Company | | | | Details |
| IOPC | Intl. Oil Pollution Compensation (—) | | | | Details |
| IOPPC | International Oil Pollution Prevention Certificate | | | | Details |
| IPAC | Independent Petroleum Association of Canada | | | | Details |
| IPC | Intake Pressure Curve (J curve) | | | | Details |
| IPC | Installed Production Capacity | | | | Details |
| IPC | International Petroleum Corporation | | | | Details |
| IPC | Iraq Petroleum Company | | | | Details |
| IPCA | International Petroleum Credit Association | | | | Details |
| IPIC | International Petroleum Investment Company | | | | Details |
| IPIC | International Petroleum Investment Co. UAE | | | | Details |
| IPIECA | International Petroleum Industry Environmental Conservation Association | | | | Details |
| IPIECA | International Petroleum Industry Environmental Conservation Assn.UK | | | | Details |
| IPRTOC | Improved Petroleum Recovery TransOil Corporation | | | | Details |
| IPTC | International Petroleum Technology Conference | | | | Details |
| IRC | Inspection Release Certificate | | | | Details |
| IRC | i-Recruitment Code | | | | Details |
| IRGC | Islamic Revolution’s Guards Corps | | | | Details |
| ISC | Integrated Service Contract | | | | Details |
| ISFCD | ISF Conductivity Log | | | | Details |
| ISM(C) | International Safety Management Code | | | | Details |
| ISO/CKR | isocracker | | | | Details |
| ISONIC | LWD Sonic | | | | Details |
| ITC | Internal x-mas Tree Cap | | | | Details |
| ITC | Industrial Training Center | | | | Details |
| ITC | investment tax credit | | | | Details |
| ITC | Interagency Testing Committee | | | | Details |
| IUC | Inter University Center (PI) | | | | Details |
| IUHTAUTC | If Used, Half Time ActUally To Count | | | | Details |
| IUPAC | International Union of Pure and Applied Chemistry | | | | Details |
| IVICV | infinitely variable internal control valve | | | | Details |
| IWC | Instantaneous Waveform Characteristics (fracture identification methodology??) | | | | Details |
| IWCF | International Well Control Federation | | | | Details |
| IWCF | International Well Control Forum | | | | Details |
| iWOC | Initial Water Oil Contact | | | | Details |
| IWOCS | Installation / Workover Control System | | | | Details |
| IWRC | Independent wire rope center | | | | Details |
| jac | jacket | | | | Details |
| Jack | Jackson | | | | Details |
| JC | job complete | | | | Details |
| JCBS | Jordanian Central Bureau of Statistics | | | | Details |
| JCGR | Junk Catcher Gauge Log | | | | Details |
| JCP | Job Competance Profile | | | | Details |
| JCS | Jet Cutters | | | | Details |
| JCS1 | Jet Cutters 1-2-7 /8-in (25-73 mm) Pipe | | | | Details |
| JCS2 | Jet Cutters 3-5-1/2-in (76-140mm) Pipe | | | | Details |
| JCS3 | Jet Cutters 6-7-5/8-in (152-194mm) Pipe | | | | Details |
| jct | junction | | | | Details |
| JCUMWE | Joint Committee on Uniformity of Methods of Water Examination | | | | Details |
| JDC | Japan Drilling Company | | | | Details |
| JDC | Jar Down pulling tool for C Core option | | | | Details |
| JDECO | Jerusalem District Electricity Corporation | | | | Details |
| JEC | Japan Energy Corporation Japan | | | | Details |
| JGC | Japan Gasoline Corporation | | | | Details |
| JMC | Joint Management Commission | | | | Details |
| JNOC | Japan National Oil Corporation | | | | Details |
| JNOC | Japan National Oil Corporation Japan | | | | Details |
| JODCO | Japan Oil Development Company | | | | Details |
| JODICO | Jordan Dead Sea Industries Company | | | | Details |
| JPRC | Jordan Petroleum Refinery Company | | | | Details |
| JRCTM | Jet Research Center | | | | Details |
| JTC | Jordanian Telecommunications Corporation | | | | Details |
| JUC | Jar Up pulling tool for C Core option (Slickline tools) | | | | Details |
| JUPC | Jubail United Petrochemical Co. Saudi Arabia | | | | Details |
| KAC | Kuwait Airways Corporation | | | | Details |
| KAFCO | Kuwait Aviation Fuelling Company | | | | Details |
| KAFCO | Kuwait Aviation Fueling Co. KSC Kuwait | | | | Details |
| KC | Kansas City | | | | Details |
| kc | kilocycle | | | | Details |
| kcal | kilocalorie | | | | Details |
| KCC | Kuwait Catalyst Company | | | | Details |
| KCl | potassium chloride salt | | | | Details |
| KCOOH | potassium formate | | | | Details |
| KCS | Kazakstan Caspiishelf | | | | Details |
| KCS | Kazakhstancaspishelf Joint Stock Co. Kazakhstan | | | | Details |
| KEPCO | Khazar Exploration and Production Company | | | | Details |
| KERMAC | Kerr-McGee Corp. | | | | Details |
| KFTCIC | Kuwait Foreign Trading, Contracting and Investment Company | | | | Details |
| kg-cal | kilogram-calorie | | | | Details |
| KHPC | Khorasan Petrochemical Company | | | | Details |
| KIC | Kuwait Investment Company | | | | Details |
| KIPCE | Kuwait International Petroleum Conference and Exhibition | | | | Details |
| KIPCO | Kuwait Investments Projects Company | | | | Details |
| Kl-Packer | Klappen-Packer | | | | Details |
| KMC | cargo refrigerating system | | | | Details |
| KMOC | Khanty Mansiysk Oil Corp.Siberia, Russia | | | | Details |
| KNOC | Korean National Oil Corporation Korea | | | | Details |
| KNPC | Kuwait National Petroleum Company | | | | Details |
| KNPC | Kuwait National Petroleum Co. KSC Kuwait | | | | Details |
| KOC | Kuwait Oil Company | | | | Details |
| KOC | Kuwait Oil Company KSC Kuwait | | | | Details |
| KOTC | Kuwait Oil Tanker Company | | | | Details |
| KOTC | Kuwait Oil Tanker Co. Kuwait | | | | Details |
| KPC | Kuwait Petroleum Corporation | | | | Details |
| KPC | Kuwait Petroleum Corp. Kuwait | | | | Details |
| KPC | Khalda Petroleum Company Egypt/Spain | | | | Details |
| KREIC | Kuwait Real Estate Investment Consortium | | | | Details |
| KUFPEC | Kuwait Foreign Petroleum Exploration Company | | | | Details |
| KUFPEC | Kuwait Foreign Petroleum Exploration Co. KSC Kuwait | | | | Details |
| L/Cret | Lower Cretaceous | | | | Details |
| LACT | Lease Automatic Custody Transfer | | | | Details |
| LACT | lease automatic custody transfer unit A calibrated measurement device used as an official sales point for crude oil transfer into a second party pipeline | | | | Details |
| LAIC | Libyan Arab Investment Company | | | | Details |
| Lapco | Lavan Petroleum Company | | | | Details |
| LAYCAN | LAYday CANcelling date | | | | Details |
| LC | Low Case | | | | Details |
| LC | Lower Completion | | | | Details |
| LC | Level Controller | | | | Details |
| LC | Loading Capacity | | | | Details |
| LC | LostCone | | | | Details |
| LC | Letter of Credit | | | | Details |
| LC | SAINT LUCIA | | | | Details |
| LC | lease crude | | | | Details |
| LC | long coupling | | | | Details |
| LC | lost circulation | | | | Details |
| LC | lower casing | | | | Details |
| LC | lug cover type(5-gallon can) | | | | Details |
| LCA | SAINT LUCIA | | | | Details |
| LCA | leakoff control acid | | | | Details |
| LCA | life-cycle assessment | | | | Details |
| LCC | Lowest Closed Contour (it is a contour line which is just above the spill point) | | | | Details |
| LCC | Life Cycle Cost | | | | Details |
| LCC | Lambert Conformal Conic | | | | Details |
| LCF | Latest Cost Factor | | | | Details |
| LCGO | light coker gas oil | | | | Details |
| lchd | leached | | | | Details |
| LCL | less-than carload lot | | | | Details |
| LCL | local | | | | Details |
| LCM | Lost Circulation Material | | | | Details |
| LCNLG | LDT CNL Gamma Ray Log | | | | Details |
| LCOE | levelized cost of electricity | | | | Details |
| LCP | leakage in closed position | | | | Details |
| LCP | local control panel | | | | Details |
| LCP | lug cover with pour spout | | | | Details |
| LCR | Lowest Current Rate | | | | Details |
| LCTD | last crystal to dissolve | | | | Details |
| LCV | Liquid Control Valve | | | | Details |
| LCV | Level Control Valve (like the actuator on the separator) | | | | Details |
| LCV | level control valve | | | | Details |
| LDC | local distribution companies | | | | Details |
| LDC | laid-down cost | | | | Details |
| LDC | local distribution company | | | | Details |
| LDCA | LINC Downhole Coupler Assembly | | | | Details |
| LDCX | lead drill collar | | | | Details |
| LDDCs | laid(laying) down drill collars | | | | Details |
| Le C | Le Comptom | | | | Details |
| LGSC | Liquified Gas Shipping Co. Abu Dhabi | | | | Details |
| LIC | level indicator controller | | | | Details |
| lic | license | | | | Details |
| LINC | Latched Inductive Coupling (SLB data Acquisition) | | | | Details |
| LINCO | Liner and Completion Progress Report | | | | Details |
| LLC | Limited Liability Company | | | | Details |
| LLC | liquid level controller | | | | Details |
| LOC | Limiting oxygen concentration (see comment) | | | | Details |
| loc | location | | | | Details |
| loc | located, location | | | | Details |
| loc | abnd location abandoned | | | | Details |
| loc | gr location graded | | | | Details |
| Lock | a mechanism to hold a plug in a profile | | | | Details |
| LQHC | Low quality hydrocarbons (i.e., tar sands and oil shale) | | | | Details |
| LRC | level recorder controller | | | | Details |
| LRTC | LINC Running Tool Cartridge (SLB data Acquisition) | | | | Details |
| LSCI | LINC Surface Computer Interface (SLB data Acquisition) | | | | Details |
| LT&C | long thread and coupled, a connection description | | | | Details |
| LT&C | long threads and coupling | | | | Details |
| LT/cd | long tons of sulfur per calendar day | | | | Details |
| LTC | Lost Time Case | | | | Details |
| LTCS | Low Temperature Carbon Steel | | | | Details |
| LTCW | Long Term Capacity Workshop | | | | Details |
| LWC | Lost Work Day (HSE KPI, see comment) | | | | Details |
| LWC | Lost Workday Case | | | | Details |
| LWDC | Lost Work Day Case | | | | Details |
| M/C | Mill Casing | | | | Details |
| MAC | Multipole Acoustic Log | | | | Details |
| MAC | Multipole Array Acoustilog | | | | Details |
| MAC | MACAU | | | | Details |
| MAC | medium amber cut | | | | Details |
| MAC2 | Multipole Array Acoustilog | | | | Details |
| mach | machine | | | | Details |
| Mack | Mackhank | | | | Details |
| MACL | Multiarm Caliper Log | | | | Details |
| MACT | Multi-Arm Caliper Tool | | | | Details |
| MACT | Maximum Achievable Control Technology | | | | Details |
| March | Marchand | | | | Details |
| Marg. coco. | Marginulina coco | | | | Details |
| MARICONSULT | Technical support to Transmed Algeria | | | | Details |
| MC | Management Committee | | | | Details |
| MC | MACAU | | | | Details |
| MC | MONACO | | | | Details |
| mc | Metric Cube | | | | Details |
| MC | mud cut | | | | Details |
| mc | megacycle | | | | Details |
| MC | mud cake | | | | Details |
| MC ls | Moore County lime | | | | Details |
| MC1 | Micro Smart MG 124 | | | | Details |
| MC2 | Micro Smart MG 173 | | | | Details |
| MC3 | Micro Smart MG 204 | | | | Details |
| MCA | mud cut acid | | | | Details |
| MCA | mud cleanout agent | | | | Details |
| MCA | mud-cut acid | | | | Details |
| MCB | master circuit board | | | | Details |
| MCC | Motor Control Center | | | | Details |
| McC | McClosky lime | | | | Details |
| McCul | McCullough | | | | Details |
| MCD | Mudcap Drilling | | | | Details |
| MCD | Mechanical Completion Dossier | | | | Details |
| McEl | McElroy | | | | Details |
| mcf | 1000 Cubic Feet | | | | Details |
| Mcf | thousand cubic feet of natural gas | | | | Details |
| Mcf | thousand cubic feet | | | | Details |
| MCF | Measurement for Natural Gas | | | | Details |
| Mcfd | thousand cubic feet per day | | | | Details |
| Mcfe | thousand cubic feet of natural gas equivalent | | | | Details |
| MCFGPD | thousand cubic feet of gas per day | | | | Details |
| MCFL | Micro-Cylindrically Focused Log | | | | Details |
| MCG | Compact Comms Gamma (see comment!) | | | | Details |
| MCG | Compact Gamma | | | | Details |
| MCG | mud-cut gas | | | | Details |
| MCHE | Main Cryogenic Heat Exchanger | | | | Details |
| mchsm | mechanism | | | | Details |
| MCI | Materials, Corrosion, and Integrity | | | | Details |
| McK | McKee | | | | Details |
| McL | McLish | | | | Details |
| MCM | Management Committee Meeting | | | | Details |
| MCM | Manifold Choke Module | | | | Details |
| MCM | Monthly Coordination Meeting (between the Fields and Asset Teams) | | | | Details |
| McMill | McMillan | | | | Details |
| MCO | MONACO | | | | Details |
| MCO | mud cut oil | | | | Details |
| MCO | mud-cut oil | | | | Details |
| MCP | maximum casing pressure | | | | Details |
| MCR | Manpower Change Request | | | | Details |
| mcr-x | microcrystalline | | | | Details |
| MCS | Manifold & Connection System | | | | Details |
| MCS | Master Control Station | | | | Details |
| MCSW | mud cut salt water | | | | Details |
| MCSW | mud-cut salt water | | | | Details |
| MCT | computer-processed interpretation | | | | Details |
| MCT | Computer Processed Interpretation | | | | Details |
| MCT | Synergetic Log Systems | | | | Details |
| MCUGP | Milled Casing Underreamed Gravel Pack | | | | Details |
| MCVL | Multicycle Circuating Valve with Lock module (see comment!) | | | | Details |
| MCW | mud cut water | | | | Details |
| MCW | mud-cut water | | | | Details |
| MDC | Message Distribution Center | | | | Details |
| MDC | Monel drill collars | | | | Details |
| MEC | Monitoring and Evaluation Committee | | | | Details |
| MEC | Middle East Caspian | | | | Details |
| MECG | Middle East Capital Group | | | | Details |
| mech | mechanic(al), mechanism | | | | Details |
| Mech | DT mechanical down time | | | | Details |
| MeCl | methylene chloride | | | | Details |
| MECP | Mechanical External Casing Packer | | | | Details |
| MEDCO | Mediterranean Oil Shipping & Transport Co. SAL Lebanon | | | | Details |
| Medevac | Medical Evacuation (type of a drill that simulates the man-down situation) | | | | Details |
| merc | mercury | | | | Details |
| mercap | mercaptan | | | | Details |
| MERCR | Mercury Injection Study Report | | | | Details |
| meth-cl | methyl chloride | | | | Details |
| MFC | Multi-Finger Caliper | | | | Details |
| MFC | Multifinger Caliper Log | | | | Details |
| MFCT | Multifinger Caliper Tool | | | | Details |
| MFCT | multi-finger caliper tool | | | | Details |
| MFCT | Multifinger Caliper Log | | | | Details |
| mg/dscm | milligrams per dry standard cubic meter | | | | Details |
| MIC | Microbiologically Influenced Corrosion | | | | Details |
| MIC | Microbial Stress Cracking (see comment) | | | | Details |
| Mica | a silica mineral, often present as ultra thin flakes and sometimes mobile | | | | Details |
| mica | micaceous | | | | Details |
| mica | mica, micaceous | | | | Details |
| MICL | Micro | | | | Details |
| MICL | Micro Log | | | | Details |
| MICL | Microlog | | | | Details |
| MICLOG | Microlog | | | | Details |
| MICP | Mercury Injection Capillary Pressure | | | | Details |
| MICR | moving in completion rig | | | | Details |
| microsec | microsecond | | | | Details |
| micro-xin | microcrystalline | | | | Details |
| MICS | Microsurvey | | | | Details |
| MICT | moved (ing) in cable tools. completion | | | | Details |
| MICT | moving in cable tools | | | | Details |
| MICU | moving in completion unit | | | | Details |
| MISC | Malaysia International Shipping Company | | | | Details |
| misc | miscellaneous | | | | Details |
| ML/CAL | Minilog Caliper | | | | Details |
| ML/CAL/GR | Minilog Caliper Gamma Ray | | | | Details |
| MLC | Microlog Calliper | | | | Details |
| MLL/CAL | Microlaterolog-Caliper | | | | Details |
| MMBtu/scf | million British thermal units per standard cubic foot | | | | Details |
| MMC | Ministerial Monitoring Committee | | | | Details |
| MMcf | million cubic feet (of natural gas) | | | | Details |
| MMcf | million standard feet of gas | | | | Details |
| MMcf | million cubic feet | | | | Details |
| MMcf/cd | million cubic feet per calendar day | | | | Details |
| MMcf/d | million cubic feet per day | | | | Details |
| MMcfd | million cubic feet per day | | | | Details |
| MMcfe | million cubic feet (of natural gas equivalent) | | | | Details |
| MMSCF | Million Standard Cubic Foot | | | | Details |
| MMscf | Million Standard Cubic Feet | | | | Details |
| MMscf/cd | million standard cubic feet per calendar day | | | | Details |
| mmscfd | million standard cubic feet per day | | | | Details |
| MMSCMD | Million Standard Cubic Meter Per Day | | | | Details |
| MOC | Management Of Change | | | | Details |
| MOC | Maintenance of Certification | | | | Details |
| MOC | Minimum oxygen concentration (see LOC) | | | | Details |
| MOC | management of change – a process to understand all the implications of a change to a procedure | | | | Details |
| MOC | ACOR Distrubuidora de Cumbustiveis S.A. Mozambique | | | | Details |
| MOCL | Mobil Oil Co. Ltd.UK | | | | Details |
| MOCT | moving (ed) off cable tools. Completion tools, completion unit | | | | Details |
| MOCT | moving out(off ) cable tools | | | | Details |
| MOCU | moving out completion unit | | | | Details |
| MODEC | Mitsui Ocean Development & Engineering Co., Ltd. Japan | | | | Details |
| MOLCHOP | More Or Less CHarterers OPtion | | | | Details |
| MPC | Misr Petroleum CompanyEgypt | | | | Details |
| MPDC | Mitsubishi Petroleum Development Co. Ltd. Japan | | | | Details |
| MPGC | Middle East Petroleum and Gas Conference | | | | Details |
| MPSC | Model Production Sharing Contract | | | | Details |
| MPSC | Michigan Public Service Commission | | | | Details |
| MQC | Multi Quick Connection Plate | | | | Details |
| MRC | Maximum Reservoir Contact | | | | Details |
| MRC | maximum reservoir contact (well) | | | | Details |
| MRCF | MDT - Flow Control Module | | | | Details |
| MRCV | Multi Reverse Circulating Valve | | | | Details |
| MRPC | MDT - Power Cartridge in MDT converting AC to DC | | | | Details |
| MRSC | MDT - Modular Sample Chamber (conventional 1 or 2 3/4 gallon sample chambers_ NOT PVT) | | | | Details |
| MRSC | Modular Formation Dynamics Tester Sample Chamber | | | | Details |
| MSC | Maximum Sustainable Capacity | | | | Details |
| MSc | Master of Science | | | | Details |
| MSC | Multi Sensor Caliper | | | | Details |
| MSC | mapping subcommittee | | | | Details |
| Mscf | thousand standard cubic feet | | | | Details |
| Mscf/d | thousand standard cubic feet per day | | | | Details |
| Mscf/h | thousand standard cubic feet per hour | | | | Details |
| MSCT | Mechanical Sidewall Coring Tool | | | | Details |
| MSCT | MSCT Gamma Ray Log | | | | Details |
| MSCT | Mechanical Sidewalk Coring or Rotary Cores | | | | Details |
| MSG-CBL | Micro-Seismogram Log, Cased Hole | | | | Details |
| MSG-CBL-G | Micro-Seismogram Gamma Collar | | | | Details |
| MSG-CBL-N | Micro-Seismogram Neutron Collar | | | | Details |
| MSIPC | Multi Stage inflatable Packer Collar | | | | Details |
| MSWC | Mechanical Side Wall Core | | | | Details |
| MTC | Mass Transport Complex (Subsea) | | | | Details |
| MTC | Compact Two Arm Caliper (see comment!) | | | | Details |
| MTC | Mobile Telecommunications Company | | | | Details |
| MTC | Medical Treatment Case (see somment) | | | | Details |
| MTC | Mill Test Certificate | | | | Details |
| MTC | Medical Treatment Cases | | | | Details |
| MTC | Compact Two Arm Caliper | | | | Details |
| musc | muscovite | | | | Details |
| MWCP | Max Well Control Pressure | | | | Details |
| Nac | Nacotoch | | | | Details |
| nac | nacreous | | | | Details |
| NACD | National Association of Chemical Distributors | | | | Details |
| NACE | National Association of Corrosion Engineers | | | | Details |
| NACE | National Association of Corrosion | | | | Details |
| NaCl | Sodium Chloride (table salt) | | | | Details |
| NaCl | sodium chloride salt Halite | | | | Details |
| NaCL | sodium chloride | | | | Details |
| NaCO3 | sodium carbonate | | | | Details |
| NACOPS | National Advisory Committee on Petroleum Statistics (Canada) | | | | Details |
| NACR | National Association of Chemical Recyclers | | | | Details |
| NAESCO | National Association of Energy Services Companies | | | | Details |
| NAFTEC | Refining subsidiary of SONATRACH Algeria | | | | Details |
| NAMCOR | National Petroleum Corp. of Namibia Namibia | | | | Details |
| NAOC | North Aspheron Operating Company | | | | Details |
| Napocor | National Power Corporation | | | | Details |
| NC | Normally Closed | | | | Details |
| Nc | capillary number | | | | Details |
| NC | NEW CALEDONIA | | | | Details |
| NC | North Carolina | | | | Details |
| NC | no change | | | | Details |
| NC | no core | | | | Details |
| NC | not completed | | | | Details |
| NCA | National Communications Authority | | | | Details |
| NCB | National Commercial Bank | | | | Details |
| NCB | National Cargo Bureau | | | | Details |
| NCD | Nigerian Content Directive | | | | Details |
| NCGIH | National Conference of Governmental Industrial Hygienists (see ACGIH) | | | | Details |
| NCL | NEW CALEDONIA | | | | Details |
| NCL | Neutron Collar Log | | | | Details |
| NCPSA | Natural Gas Processors Suppliers Association | | | | Details |
| NCR | Non Conformity Report | | | | Details |
| NCS | Norwegian Continental Shelf | | | | Details |
| NCT | non-contiguous tract | | | | Details |
| NCT | national coarse thread | | | | Details |
| NCT | noncontiguous tract | | | | Details |
| NCW | non-conventional wells | | | | Details |
| NDC | National Drilling Company | | | | Details |
| NDC | Neutron Depth Control | | | | Details |
| NDC | National Drilling Co. Abu Dhabi | | | | Details |
| ne/c | northeast corner | | | | Details |
| NEC | National Electric Code | | | | Details |
| NEC | national electric code (US) | | | | Details |
| NEC | northeast corner | | | | Details |
| NEDC | Near East Development Company | | | | Details |
| Nepco | National Electricity and Power Company | | | | Details |
| NERC | North American Electric Reliability Corporation | | | | Details |
| NEREFCO | Netherlands Refining Co. Netherlands | | | | Details |
| Nesco | Naftgaran Engineering Services Company | | | | Details |
| Newc | Newcastle | | | | Details |
| NFC | Non-Fatal Cases | | | | Details |
| NFOC | no fluorescence or cut | | | | Details |
| NGC | Natural Gas in Coal | | | | Details |
| NGCC | natural gas combined cycle | | | | Details |
| NGDC | National Geoscience Data Centre (United Kingdom) | | | | Details |
| NGRC | National Geological Records Centre (United Kingdom) | | | | Details |
| NGSCO | National Gas Shipping Company | | | | Details |
| NGSCO | National Shipping Co. Abu Dhabi | | | | Details |
| NH4Cl | ammonium chloride | | | | Details |
| NHC | National Hurricane Center, division of US National Oceanic and Atmospheric Administration | | | | Details |
| NIC | National Industrialization Company | | | | Details |
| NIC | NICARAGUA | | | | Details |
| NIC | not in contract | | | | Details |
| NIDC | National Iranian Drilling Company | | | | Details |
| NIDOCO | Nile Delta Oil Company Egypt and others | | | | Details |
| NIGC | National Iranian Gas Company | | | | Details |
| NIGC | National Iranian Gas Company Iran | | | | Details |
| NIOC | National Iranian Oil Company | | | | Details |
| NIOC | National Iranian Oil Co. Iran | | | | Details |
| NIOEC | National Iranian Oil Engineering and Construction Company | | | | Details |
| NIPC | National Iranian Petrochemical Company Iran | | | | Details |
| NIRPDC | National Iranian Refining & Petroleum Products Distribution Co. Iran | | | | Details |
| NITC | National Iranian Tanker Company | | | | Details |
| NMDC | Non Magnetic Drill Collar | | | | Details |
| NMDC | Non Magnetic Drill Collars | | | | Details |
| NMHC | Non-Methane Hydrocarbons | | | | Details |
| NMOCC | New Mexico Oil Conservation Commission | | | | Details |
| NMVOC | Non-Methane Volatile Organic Compounds | | | | Details |
| NNC | Non Neighbor Connections | | | | Details |
| NNPC | National Petroleum Construction Co. Abu Dhabi | | | | Details |
| NNPC | Nigerian National Petroleum Corp. Nigeria | | | | Details |
| NOC | National Oil Company | | | | Details |
| NOC | National Oil Corporation | | | | Details |
| NOC | Note of Completion of Work or No Objection Certificate | | | | Details |
| NOC | National Oil Companies | | | | Details |
| NOC | national (or state-owned) oil company | | | | Details |
| NOC | LIBYA National Oil Company (Libya) Libya | | | | Details |
| NOCK | National Oil Corporation of Kenya Ltd. Kenya | | | | Details |
| NODCO | National Oil Distribution Company | | | | Details |
| NODCO | National Oil Distribution Co. Qatar | | | | Details |
| NOJC | National Oil Jobbers Council | | | | Details |
| NPC | National Petrochemical Company | | | | Details |
| NPC | Net Present Cost | | | | Details |
| NPC | National Petroleum Council | | | | Details |
| NPC | National Petroleum Company Barbados | | | | Details |
| NPC | Nasr Petroleum Co. Egypt | | | | Details |
| NPCC | National Petroleum Construction Company | | | | Details |
| NPIC | National Petrochemical Industrialization Co. Saudi Arabia | | | | Details |
| NPLC | Nuclear Porosity Lithology | | | | Details |
| NPSC | American Standard Straight Coupling Pipe Thread | | | | Details |
| NRC | National Recruitment Center | | | | Details |
| NRC | Nuclear Regulatory Commission or National Response Center | | | | Details |
| NRC | Nuclear Regulatory Commission | | | | Details |
| NREC | National Real Estate Company | | | | Details |
| NSC | National Security Council | | | | Details |
| NSC | not suitable for coating | | | | Details |
| NSFOC | no show fluorescence or cut | | | | Details |
| NTPC | National Thermal Power Company | | | | Details |
| NUCP | Smoothed Neutron Porosity | | | | Details |
| NUCR | Nuclear | | | | Details |
| nw/c | northwest corner | | | | Details |
| NWC | Networking Capital | | | | Details |
| NYDEC | New York State Department of Environmental Conservation | | | | Details |
| O&GC | SULW oil and gas-cut sulfur water | | | | Details |
| O&GCAW | oil & gas cut acid water | | | | Details |
| O&GCAW | oil and gas-cut acid water | | | | Details |
| O&GCLW | oil & gas cut load water | | | | Details |
| O&GCLW | oil and gas-cut load water | | | | Details |
| O&GCM | oil & gas cut mud | | | | Details |
| O&GCM | oil and gas-cut mud | | | | Details |
| O&GCSW | oil & gas cut salt water | | | | Details |
| O&GCSW | oil and gas-cut salt water | | | | Details |
| O&GCW | oil & gas cut water | | | | Details |
| O&GCW | oil and gas-cut water | | | | Details |
| O&SWCM | oil and sulfur water-cut mud | | | | Details |
| OAPEC | Organization of Arab Petroleum Countries | | | | Details |
| OAPEC | Organization of Arab Petroleum Exporting Countries | | | | Details |
| OAPEC | Organization of Arab Petroleum Exporting Countries (—) | | | | Details |
| OBC | Ocean Bottom Cable (Seismic) | | | | Details |
| OBC | Ocean Bottom Cable | | | | Details |
| OBC | Onboarding Course | | | | Details |
| OBCS | Ocean Bottom Cable System | | | | Details |
| OC | Off Center Wear | | | | Details |
| OC | operating center | | | | Details |
| OC | outer casing | | | | Details |
| oc | Operating Committee | | | | Details |
| oc | oil cut | | | | Details |
| OC | on center | | | | Details |
| OC | open choke | | | | Details |
| OC | open cup | | | | Details |
| OC | operations commenced | | | | Details |
| OC | Other Curves | | | | Details |
| OC- | Oil and Gas Investigations Chart | | | | Details |
| OCAW | Oil, Chemical & Atomic Workers International Union | | | | Details |
| OCB | oil circuit breaker | | | | Details |
| OCC | Operations Coordination Center | | | | Details |
| OCC | occasional. occasionally | | | | Details |
| occ | occasional(ly) | | | | Details |
| OCENSA | Oleoducto Central S.A. Colombia | | | | Details |
| OCI | Oil Corrosion Inhibitor (Vessels) | | | | Details |
| OCIMF | Oil Companies International Marine Forum | | | | Details |
| OCIMF | Oil Companies International Marine Forum (—) | | | | Details |
| OCK | Ordinary Cokriging | | | | Details |
| OCL | Quality Control Log | | | | Details |
| OCM | Operating Committee Meeting | | | | Details |
| OCM | oil cut mud | | | | Details |
| OCM | oil-cut mud | | | | Details |
| OCR | Optical Character Recognition (In scaning & printing - changing the scan to text ) | | | | Details |
| OCR | Office of Coal Research | | | | Details |
| OCS | Overall Contracting Strategy | | | | Details |
| OCS | outer continental shelf | | | | Details |
| OCSLA | Outer Continental Shelf Lands Act | | | | Details |
| OCSW | oil cut salt water | | | | Details |
| OCSW | oil-cut salt water | | | | Details |
| oct | octagon, octagonal | | | | Details |
| oct | octane | | | | Details |
| OCTG | Oil Country Tubular Goods - pipe made to API specifications | | | | Details |
| OCTG | Oil Country Tubular Goods (oil well casing, tubing, and drill pipe) | | | | Details |
| OCTG | oil country tubular goods | | | | Details |
| ocw | oil cut water | | | | Details |
| OCW | oil-cut water | | | | Details |
| ODAC | Oil Depletion Analysis Centre | | | | Details |
| OECD | Organization for Economic Cooperation and Development | | | | Details |
| OECD | Organization of Economic Cooperation and Development | | | | Details |
| OECD | Organization for Economic Cooperation & Development | | | | Details |
| OFAC | Office of Foreign Asset Control | | | | Details |
| OFC | Open-Flow Capacity | | | | Details |
| OFIC | oil insulated fan-cooled | | | | Details |
| OGC | Oil & Gas & Condensate | | | | Details |
| OGDC | Oil and Gas Development Corp. Pakistan | | | | Details |
| OGDCL | Oil & Gas Development Company Limited | | | | Details |
| OGIC | Oil and Gas India Conference and Exhibition | | | | Details |
| OGMC | Oil and Gas Mine Company | | | | Details |
| OGOC | Original Gas Oil Contact | | | | Details |
| OGWC | Original Gas Water Contact | | | | Details |
| OHC | Open Hole Completion | | | | Details |
| ohm-cm | ohm-centimeter | | | | Details |
| OIC | Organization of Islamic Conference | | | | Details |
| OIC | Oil Information Committee | | | | Details |
| OIEC | Oil Industries Engineering Company | | | | Details |
| OIFC | oil insulated, fan cooled | | | | Details |
| oilfract | Oil fractured | | | | Details |
| OILREC | OIL RECovery | | | | Details |
| OISC | oil insulated, self-cooled | | | | Details |
| OIWC | oil immersed, water cooled | | | | Details |
| OKIOC | Offshore Kazakstan International Operating Company | | | | Details |
| OKIOC | Offshore Kazakhstan Intl. Operating Co. Kuwait | | | | Details |
| OLECASA | Oleoductos Canarios S.A. Spain | | | | Details |
| OMIFCO | Oman-India Ferilizer Company | | | | Details |
| ONACO | Orenburg Oil Company Russia | | | | Details |
| ONCF | Office National des Chemins de Fer | | | | Details |
| ONGC | Oil and Natural Gas Corporation | | | | Details |
| ONGC | Oil & Natural Gas Corporation | | | | Details |
| ONGC | Oil and Natural Gas Commission India | | | | Details |
| ONHC | Oman National Holding Company | | | | Details |
| OOC | Oman Oil Company | | | | Details |
| ooc | ooliclastic | | | | Details |
| OOC | Offshore Operators Committee | | | | Details |
| OOWC | Original Oil Water Contact | | | | Details |
| OPC | Oriental Petrochemical Company | | | | Details |
| OPC | Oil Policy Committee | | | | Details |
| OPC | Oriental Petrochemicals Company Egypt | | | | Details |
| OPCO | Lukoil Mid-East Operational Company | | | | Details |
| OPCO | Operating Company | | | | Details |
| OPCOM | Romanian gas and electricity market operator | | | | Details |
| OPEC | Organization of Petroleum Exporting Countries | | | | Details |
| OPEC | Organization of the Petroleum Exporting Countries | | | | Details |
| OPEC | Organization of Petroleum Exporting Countries (1983 list | | | | Details |
| OPEC | Organization of Petroleum Exporting Countries (—) | | | | Details |
| OPECNA | OPEC News Agency OPEC | | | | Details |
| Operc | Operculinoides | | | | Details |
| OPIC | Overseas Private Investment Corporation | | | | Details |
| ORC | Oman Oil Refinery Company | | | | Details |
| ORIAC | Oil Refining Industry Action Committee | | | | Details |
| ORICO | Oriented Core Data Report | | | | Details |
| ORSANCO | Ohio River Valley Water Sanitation Commission | | | | Details |
| OSC | On Scene Commander | | | | Details |
| OSCO | Oil Services Company of Iran | | | | Details |
| OSHRC | Occupational Safety and Health Review Commission | | | | Details |
| OSRC | (ADNOC) Oil Spill Response Centre | | | | Details |
| OTC | Offshore Technology Conference | | | | Details |
| OVCH | Oversize Charts | | | | Details |
| OWC | Oil Water Contact | | | | Details |
| OWC | oil-water contact | | | | Details |
| P&C | personal and confidential | | | | Details |
| P/C | “Painted and coated” or “painted and wrapped” pipelines-steel pipe with protective external coating of one of several different types | | | | Details |
| PAC | Production Acceptance Certification (a test for the EPF, to check if it can handle the nominal oil volume) | | | | Details |
| PAC | Provisional Acceptance Certificate | | | | Details |
| PACIN | Paints and Chemical Industries Company | | | | Details |
| PACO | Process Automation, Control & Optimization | | | | Details |
| PACV | pressure activated circulating valve | | | | Details |
| Pafco | Pak-Arab Fertilizers Ltd. | | | | Details |
| Parco | Pak-Arab Refinery Ltd. | | | | Details |
| PARCO | Pak-Arab Refinery Pakistan/Abu Dhabi | | | | Details |
| Pc | Capillary Pressure (reservoir) | | | | Details |
| pC | Casingdruck | | | | Details |
| PC | Percentage | | | | Details |
| PC | Pressure Control valve (like PCV) | | | | Details |
| Pc | Capillary Pressure | | | | Details |
| PC | PITCAIRN | | | | Details |
| PC | production casing | | | | Details |
| PC | Paint Creek | | | | Details |
| pc | piece | | | | Details |
| PC | poker chipped | | | | Details |
| pc | port collar | | | | Details |
| PC | Porter Creek | | | | Details |
| PC | Pressure Control | | | | Details |
| PC | Perez Comerc Argentina | | | | Details |
| PCA | Principal Component Analysis (water analysis) | | | | Details |
| PCA | Production Concession Agreement | | | | Details |
| PCA | Principal Component Analysis | | | | Details |
| Pcal | petacalorie | | | | Details |
| PCB | Poly Chlorinated BiPhenyl | | | | Details |
| PCB | polychlorinated biphenyls | | | | Details |
| PCC | Petrochemical Commercial Company | | | | Details |
| PCCL | Perforation Casing Collar Locator Log | | | | Details |
| PCD | Microlog | | | | Details |
| PCDD | polychlorinated dibenzodioxins | | | | Details |
| PCDF | polychlorinated dibenzofurans | | | | Details |
| PCDM | Power and Control Distribution Module | | | | Details |
| PCE | Pressure Control Equipment (S/L or W/L PCE: lubricator, stuffinf box, …) | | | | Details |
| PCE | Pressure Control Equipment | | | | Details |
| PCF | Pound per Cubic Foot | | | | Details |
| PCF | Pounds per Cubic Feet | | | | Details |
| PCF | Petroleum Communications Foundation | | | | Details |
| PCG | Pressure Case Gamma | | | | Details |
| PCI | Project Competative Intelligence | | | | Details |
| PCI | Peripheral Component Interconnect | | | | Details |
| PCJ | Petroleum Corp. of Jamaica Jamaica | | | | Details |
| PCK | Petrolchemie und Kraftstoffe AG Schwedt Germany | | | | Details |
| PCKR | Packer Log | | | | Details |
| PCKR | Packer | | | | Details |
| PCL | Pipe Conveyed Logging | | | | Details |
| PCM | Power Control Module | | | | Details |
| PCN | Proposal to Commence Negotiation | | | | Details |
| PCN | PITCAIRN | | | | Details |
| PCOLL | Perforation and Collar | | | | Details |
| PCP | Permanent Completion Perforating | | | | Details |
| PCP | Progressive Cavity Pump (well artificial lift) | | | | Details |
| PCP | Progressive Cavity Pump | | | | Details |
| PCR | Permanent Cement Retainer | | | | Details |
| PCR | Performance and Career Review (Staff Appraisal) | | | | Details |
| Pcsg | Production Casing | | | | Details |
| PCT | Pressure Controlled Tester valve (SLB) | | | | Details |
| PCT | Percentage | | | | Details |
| PCT | Combination Production Logging | | | | Details |
| pct | percent | | | | Details |
| PCT | Production Combination Tool Logging | | | | Details |
| PCTS | Pressure Correction Temperature Source | | | | Details |
| PCV | Pressure Control Valve | | | | Details |
| PCV | positive crankcase ventilation | | | | Details |
| PDC | Perforation Depth Control | | | | Details |
| PDC | Polycrystalline Diamond Composite (a type of drilling bit) | | | | Details |
| PDC | Project Document Controller | | | | Details |
| PDC | Polycrystalline Diamond Compact (for bits) | | | | Details |
| PDC | Primary Domain Controller | | | | Details |
| PDC | poly crystalline diamond compact drill bit or cutter | | | | Details |
| PDC | Gamma Ray Depth Cont rol | | | | Details |
| PDC | Perforating Formation Collar | | | | Details |
| PDC | Perforating Fonmation | | | | Details |
| PDC | Perforating Depth Control | | | | Details |
| PDC | Collar/Collar Correlation | | | | Details |
| PDC | power distribution center | | | | Details |
| PDC | pressure differential controller | | | | Details |
| PDC | Perforating-Depth Control | | | | Details |
| PDC | Perforation Depth Control Log | | | | Details |
| PDC | Perforated Depth Control | | | | Details |
| PDIC | pressure differential indicator controller | | | | Details |
| PDISC | Petroleum Development Integrated Sub-Committee Meeting | | | | Details |
| PDRC | pressure differential recorder controller | | | | Details |
| PEC | Production Enhancement Contract | | | | Details |
| Pedco | Petroleum Development Corporation | | | | Details |
| PEDEC | Petroleum Development and Engineering Company | | | | Details |
| perco | percolation | | | | Details |
| PERDC | Perforation Depth Control | | | | Details |
| PETCO | Petroleum Corporation of Texas | | | | Details |
| PETROCAN | Petroleos de Canarias Spain | | | | Details |
| petrochem | petrochemical | | | | Details |
| PETROCI | Societe Nationale d’Operations Petrolieres de la Cote d’Ivoire Cote d’Ivoire | | | | Details |
| PETRO-COMMERCIAL | Empresa Estatal de Commercializacion y Transporte de Petroles del Ecuador Ecuador | | | | Details |
| PETRO-ECUADOR | Petroleos de Ecuador Ecuador | | | | Details |
| PetroFinance | Petroleum Finance Company | | | | Details |
| PETROMOC | Empresa Nacional Petroles de Moçambique Mozambique | | | | Details |
| PETRONIC | Empresa Nicaraguense del Petroleo Nicaragua | | | | Details |
| PETRO-PRODUCTION | Empresa Estatal de Exploration y Produccion de Petroleos del Ecuador Ecuador | | | | Details |
| PETSOC | Petroleum Society of the Canadian Institute of Mining, Metallurgy and Petroleum | | | | Details |
| PFC | PFC Log | | | | Details |
| PFC | Petroleum Finance Company Ltd. | | | | Details |
| PFC | Perforating Control | | | | Details |
| PFC | Perforating Formation Collar | | | | Details |
| PFC | PFC Gamma Ray Log | | | | Details |
| PFC GR | PFC Gamma Ray | | | | Details |
| PFCS | Flow-Caliper Imaging Sonde in PLT/PSP Schlumgberger tool (spinner+caliper) | | | | Details |
| PFRACT | prefractionator | | | | Details |
| PFREC | Perforation Record Log | | | | Details |
| pg/dscm | picograms per dry standard cubic meter | | | | Details |
| PGAC | Propane Gas Association of Canada | | | | Details |
| PGC | Pecan Gap chalk | | | | Details |
| PGCOA | Pennsylvania Grade Crude Oil Association | | | | Details |
| PGMC | Platform Gradiomanometer Sonde in PLT/PSP tool of Schlumberger (Density) | | | | Details |
| PHC | Project Health Check | | | | Details |
| PHC | Passive Heave Compensator | | | | Details |
| PHC | pipe-handling capacity | | | | Details |
| PHCL | Photoclinometer | | | | Details |
| PIC | Petrochemical Industries Company | | | | Details |
| PIC | Person In Charge | | | | Details |
| PIC | pressure indicator controller | | | | Details |
| Pic | Cl Pictured Cliff | | | | Details |
| PICA | Petroleum Industry Contractors Association | | | | Details |
| PIDEC | Petrochemical Industries and Engineering Company | | | | Details |
| PIRC | PI Research Center | | | | Details |
| PIRINC | Petroleum Industry Research Foundation, Inc. | | | | Details |
| PLC | Programmable Logic Controller | | | | Details |
| PLCA | Pipe Line Contractors Association | | | | Details |
| plcy | pelecypod | | | | Details |
| PLRC | Professional Ladder Review Committee (old designation for CLRC) | | | | Details |
| PMACS | portable measurement, alarm and control system | | | | Details |
| PMC | Project Management Consultant | | | | Details |
| PMCD | Pressurized Mudcap Drilling | | | | Details |
| PNC | Palestinian National Council | | | | Details |
| PNC | pulsed neutron capture | | | | Details |
| PNOC | Philippine National Oil Company Philippines | | | | Details |
| POCS | Pacific Outer Continental Shelf | | | | Details |
| POLICOLSA | Poliolefinas Colombianas S.A. Colombia | | | | Details |
| porc | porcelaneous | | | | Details |
| porc | porcion | | | | Details |
| POWC | Present Oil Water Contact (reservoir) | | | | Details |
| PPC | Powered positioning caliper | | | | Details |
| PPC | Pollution Prevention and Control | | | | Details |
| Ppc | pseudo-critical pressure [psi] | | | | Details |
| PPC | Petroleum Packaging Council | | | | Details |
| PPC | Petroleum Pipelines Company Egypt | | | | Details |
| ppcf | Pounds Per Cubic Foot | | | | Details |
| PPLC | Professional Personnel Leadership Committee | | | | Details |
| PRC | Petroleum Reserves Company | | | | Details |
| PRC | pressure recorder control | | | | Details |
| PRC NEU | PFC Neutron | | | | Details |
| prcst | precast | | | | Details |
| PREC | Perforation Record | | | | Details |
| PRECIP | precipitator | | | | Details |
| prncpl-lss | principal lessee(s) | | | | Details |
| proc | process | | | | Details |
| PSAC | Petroleum Services Association of Canada | | | | Details |
| PSC | Production Sharing Contract | | | | Details |
| PSC | Port State Control | | | | Details |
| PSC | Positive Seal Coupling | | | | Details |
| PTC | permanent type completion | | | | Details |
| PTC | digitales P,T , CCL Meßgerät | | | | Details |
| PTTC | Petroleum Technology Transfer Council, United States | | | | Details |
| PTTC | Petroleum Technology Transfer Council | | | | Details |
| PUC | project ultimate cost | | | | Details |
| PUIC | pulled up in casing | | | | Details |
| PURCH | purchasing | | | | Details |
| PVC | Polyvinyl Chloride | | | | Details |
| PWCH | Pump down Wet Connector Head | | | | Details |
| pyrclas | pyroclastic | | | | Details |
| QA/QC | quality assurance and quality control | | | | Details |
| QABICO | Qatar Hot Briquetted Iron Company | | | | Details |
| QAFAC | Qatar Fuel Additives Company | | | | Details |
| QAFCO | Qatar Fertilizer Company | | | | Details |
| QAPCO | Qatar Petrochemical Company | | | | Details |
| QAPCO | Qatar Petroleum Company | | | | Details |
| QASCO | Qatar Steel Company | | | | Details |
| QC | Quality control | | | | Details |
| QC | Quick Connect | | | | Details |
| QC | Quitclaim | | | | Details |
| QCAT | Quality Criticality Assessment Team | | | | Details |
| Q-Chem | Qatar Chemical Complex | | | | Details |
| Q-CHEM | Qatar Chemical Corp. Qatar | | | | Details |
| QCM | Quality Compliance Manager | | | | Details |
| QCNT | Slim Hot Compensated Neutron Tool | | | | Details |
| QCR | Quality Control Report | | | | Details |
| QEWC | Qatar Electricity and Water Company | | | | Details |
| QGPC | Qatar General Petroleum Corporation | | | | Details |
| QGPC | Qatar General Petroleum Corporation Qatar | | | | Details |
| qnch | quench | | | | Details |
| QPDC | Qatar Petroleum Development Company Ltd. | | | | Details |
| QRC | quick ram change | | | | Details |
| QSC | Quality Steering Committee | | | | Details |
| QSCS | Slimhole Power Caliper Sonde | | | | Details |
| QTGC | SlimXtreme Telemetry and Gamma Ray | | | | Details |
| QVC | Qatar Vinyl Company | | | | Details |
| R&LC | road & location complete | | | | Details |
| RAC | Ratio Curves | | | | Details |
| RAC | Radiation Advisory Committee | | | | Details |
| RACI | Responsible / Accountable / Consulted / Informed | | | | Details |
| RACT | Reasonable Available Control Technology | | | | Details |
| RACTR | reactor | | | | Details |
| RADEEC | Regie Autonome Intercommunal de Distribution d’Eau et d’Electricité de la Chaouia | | | | Details |
| RAMCO | Ramco Energy plc UK | | | | Details |
| RASHPETC | Rashed Oil Company Egypt and others | | | | Details |
| RC | Reservoir Charactrization | | | | Details |
| RC | Route Cause | | | | Details |
| RC | rapid curing | | | | Details |
| RC | Red Cave | | | | Details |
| RC | remote control | | | | Details |
| RC | reverse circulation | | | | Details |
| RC | running casing | | | | Details |
| RCA | Root Cause Analysis | | | | Details |
| RCAL | Routine Core Analysis | | | | Details |
| RCC | Revolutionary Command Council | | | | Details |
| RCD | Rotating Control Device | | | | Details |
| RCFA | root cause failure analysis | | | | Details |
| RCH | Rotating Control Head | | | | Details |
| RCI | Reservoir Characterization Instrument | | | | Details |
| RCI | Reservoir Charactization Instrument (logging tool) | | | | Details |
| RCJB | ReCirculating Junk Basket | | | | Details |
| RCKST | Rig Checkshot | | | | Details |
| RCL | Retainer Correlation Log | | | | Details |
| RCM | Reclaimed concrete material | | | | Details |
| RCM | Reliability Centred Maintenance | | | | Details |
| RCM | recirculating mixer | | | | Details |
| RCnBR | Rudist, Caprinid, Boundstone-Rudstone | | | | Details |
| RCO | returning circulation oil | | | | Details |
| RCOR | Rotary Sidewall Coring Tool | | | | Details |
| RCOR | Rotary Coring Tool | | | | Details |
| RCP | resin coated proppant | | | | Details |
| RCpBF | Rudist, Caprotinid, Boundstone | | | | Details |
| RCPT | receptacle | | | | Details |
| RCR | Remote Component Replacement (Tool) | | | | Details |
| RCR | Remote Component Replacement(Tool) | | | | Details |
| RCR | Ramsbottom Carbon Residue | | | | Details |
| RCR | reverse circulation rig | | | | Details |
| RCRA | Recourse Conservation and Recovery Act | | | | Details |
| RCRA | Resource Conservation and Recovery Act | | | | Details |
| RCS | resin coated sand | | | | Details |
| RCSC | Reservoir Characterization and Simulation Conference | | | | Details |
| RCSSP | resin coated sand slurry pack | | | | Details |
| RCT | radial cutting torch, a tubing cutting tool that uses thermite plasma | | | | Details |
| RCTN | reaction | | | | Details |
| RCU | Remote Control Unit | | | | Details |
| RCVR | receiver | | | | Details |
| RCVY | recovery | | | | Details |
| RCYL | recycle | | | | Details |
| RDCR | reducer | | | | Details |
| reacd | reacidize(ed)(ing) | | | | Details |
| React | reaction(ed) | | | | Details |
| REC | Recommendation | | | | Details |
| rec | recovered | | | | Details |
| rec | recommend | | | | Details |
| rec | record(er)(ing) | | | | Details |
| rec | recover(ed)(ing), recovery | | | | Details |
| recd | received | | | | Details |
| RECIP | reciprocate | | | | Details |
| recip | reciprocate(ing) | | | | Details |
| recirc | recirculate | | | | Details |
| recomp | recomplete(ed)(ion) | | | | Details |
| RECOMP | recompressor | | | | Details |
| recond | recondition(ed) | | | | Details |
| recp | receptacle | | | | Details |
| rect | rectangle, rectangular | | | | Details |
| rect | rectifier | | | | Details |
| recy | recycle | | | | Details |
| REFCO | Abu Dhabi Refining Company | | | | Details |
| reloc | relocate(ed) | | | | Details |
| RFC | Rotating Flow Converter | | | | Details |
| RFC | Ready for Commissioning | | | | Details |
| RFLCT | reflect(ed)(ing)(tion) | | | | Details |
| RISC | Reduced Instruction Set Computer | | | | Details |
| RMC | Mud Cake Resistivity | | | | Details |
| RMLC | Request for Mineral Land Clearance | | | | Details |
| ROACE | Return on Average Capital Employed | | | | Details |
| ROC | Reference Our Cable....(date) | | | | Details |
| ROC | Retention Of Cuttings (Mud term) | | | | Details |
| ROCE | Return on capital employed (same as ROACE, See ROACE) | | | | Details |
| ROCE | return on capital employed | | | | Details |
| ROCK | Retention Of Critical Knowledge | | | | Details |
| ROCT | Rotary Coring Tool | | | | Details |
| RPC | Refineria de Petroleo Concon S.A. Chile | | | | Details |
| RPCM | Ring Pair Corrosion Monitoring | | | | Details |
| RRC | Railroad Commission | | | | Details |
| RRC | Railroad Commission (Texas) | | | | Details |
| RROCK | Routine Rock Properties Report | | | | Details |
| RSCP | Rachet-Set Compression Packer | | | | Details |
| RSCT | Rotary Sidewall Coring Tool | | | | Details |
| RSCT | Rotary Sidewall Coring | | | | Details |
| RSWC | Rotational Side Wall Core | | | | Details |
| RT CB | round trip changed bit | | | | Details |
| RTECS | Registry of Toxic Effects of Chemical Substances | | | | Details |
| RTOC | Real Time Operation Center | | | | Details |
| RTOC | Real Time Operations Center | | | | Details |
| RUCC | rig-up casing crew | | | | Details |
| RUCT | rigging up cable tools or standard tools, completion tools or completion unit | | | | Details |
| RUCT | rigging-up cable tools | | | | Details |
| RWC | Restricted Work Case (see comment) | | | | Details |
| RwC | Reaming with Casing | | | | Details |
| RXC | Regional Exploration Consultant | | | | Details |
| RYC | Reference Your Cable...(date) | | | | Details |
| S/C | Slip and cut | | | | Details |
| S/C | speed/current | | | | Details |
| S7LC | SenTREE 7 Lubricator Centraliser | | | | Details |
| SABIC | Saudi Basic Industries Corporation | | | | Details |
| SABIC | Saudi Arabia Basic Industries Corporation | | | | Details |
| SABIC | Saudi Arabia Basic Industries Corporation Saudi Arabia | | | | Details |
| Sace | State Export and Guarantee and Insurance Company | | | | Details |
| sach | saccharoidal | | | | Details |
| SACROC | Scurry Area Canyon Reef Operators Committee | | | | Details |
| SADCOP-MAHRUKAT | Syrian Storing and Distributing Co., Petroleum Products Syria | | | | Details |
| SAFCO | Saudi Arabian Fertilizer Company | | | | Details |
| Samarec | Saudi Arabian Marketing and Refining Company | | | | Details |
| SAMCOM | Saudi Arab Manpower Committee | | | | Details |
| SASC | Saudi Aramco Cino Ltd. | | | | Details |
| Sasco | Sohar Aluminium Smelter Company | | | | Details |
| SATSHINC | SATurdays, Sundays, Holidays INCluded | | | | Details |
| Saudi Aramco | Saudi Arabian Oil Company | | | | Details |
| SC | Seismic Calibration | | | | Details |
| SC | Sintered Screen | | | | Details |
| SC | Super Charged | | | | Details |
| SC | Sample Connection (port on the data for example) | | | | Details |
| SC | Solids/Sand Control | | | | Details |
| SC | SAINT KITTS AND NEVIS | | | | Details |
| SC | SEYCHELLES | | | | Details |
| SC | South Carolina | | | | Details |
| SC | Standard Condition | | | | Details |
| sc | scales | | | | Details |
| SC | self-contained | | | | Details |
| SC | show condensate | | | | Details |
| SC DL | slip and cut drill time | | | | Details |
| SCA | Suez Canal Authority | | | | Details |
| SCA | Society of Core Analysts | | | | Details |
| SCAC | Surface Consistent Amplitude Correction | | | | Details |
| SCAD | A Supervisory Control & Data Acquisition | | | | Details |
| SCADA | Supervisory Control and Data Acquisition | | | | Details |
| SCAF | scaffolding | | | | Details |
| SCAL | Special core analysis | | | | Details |
| SCANRAFF | Skandinaviska Raffinaderi AB Sweden | | | | Details |
| SCAP | Scallops Log | | | | Details |
| SCAR | DST Sample Carrier (SLB) | | | | Details |
| scat(d) | scatter(ed) | | | | Details |
| scatt | scattered | | | | Details |
| SCBA | Self Contained Breathing Apparatus | | | | Details |
| SCC | Stress Corrosion Cracking | | | | Details |
| SCC | Source Classification Code | | | | Details |
| SCDES | Sidewall Core Description | | | | Details |
| SCE | Soldis control equipment | | | | Details |
| SCE | Safety Critical Elements | | | | Details |
| SCE | Perforating-Expendable Shaped Charge | | | | Details |
| SCE-CC | Casing Cutter Service | | | | Details |
| Sceco | Saudi Consolidated Electric Company | | | | Details |
| SCECO | Saudi Consolidated Electrical Company | | | | Details |
| scf | standard cubic feet (of natural gas) | | | | Details |
| SCF | standard cubic feet | | | | Details |
| scf, | SCF standard cubic foot | | | | Details |
| scf/yr | standard cubic feet per year | | | | Details |
| scfd | standard cubic feet per day | | | | Details |
| scfd, | SCFD standard cubic feet per day | | | | Details |
| scfh, | SCFH standard cubic feet per hour | | | | Details |
| SCFIL | Structurally Consistent Filtering | | | | Details |
| scfm | standard cubic feet per minute | | | | Details |
| scfm, | SCFM standard cubic feet per minute | | | | Details |
| SCG | SERBIA AND MONTENEGRO | | | | Details |
| sch | schedule | | | | Details |
| SCH | Perforating-Hyper Jet | | | | Details |
| SCH | Basic MSI C/O Log Analysis (CHES II®) | | | | Details |
| schem | schematic | | | | Details |
| Schl. | Schlumberger | | | | Details |
| Schl., | Sj Schlumberger | | | | Details |
| SCHLL | Schlumberger Log also SCHLO, SCHLU | | | | Details |
| Scholle | Block (a compartment of reservoir) Geology, | | | | Details |
| SCIRI | Supreme Council of the Islamic Revolution in Iraq | | | | Details |
| SCIS | Society for Contemporary Iranian Studies | | | | Details |
| SCL | Strategic Cost Leadership | | | | Details |
| SCL | slickline collar locator | | | | Details |
| SCL | Sonic Caliper | | | | Details |
| SCL | Sonic Caliper Log | | | | Details |
| SCLSS | Slim Compensated Long Spaced Sonic | | | | Details |
| scly | securaloy | | | | Details |
| SCM | Subsea Control Module | | | | Details |
| SCM | Solenoid Control Module | | | | Details |
| SCM | Steering Comittee Meeting | | | | Details |
| SCM | Supply Chain Management | | | | Details |
| SCM(MB) | Subsea Control Module (Mounting Base) | | | | Details |
| SCO | Synthetic Crude Oil | | | | Details |
| scolc | scolescodonts | | | | Details |
| SCON | Sand Consolidation | | | | Details |
| SCOT | Shell Claus Off-gas Treating | | | | Details |
| SCP | Société Cherifienne des Pétroles | | | | Details |
| SCP | Summary Completion Proposal | | | | Details |
| SCP | sustained casing pressure | | | | Details |
| SCPC | Saudi Chevron Petrochemical Corp. Saudi Arabia | | | | Details |
| SCPM | Supreme Council for Petroleum & Minerals Saudi Arabia | | | | Details |
| SCR | Slow Circulation Rate | | | | Details |
| SCR | Silicon-controlled rectifier | | | | Details |
| SCR | Steel Catenary Riser (subsea system component) | | | | Details |
| SCR | selective catalytic reduction | | | | Details |
| scr | scraper | | | | Details |
| scr | scratcher | | | | Details |
| scr | screen | | | | Details |
| scr(d) | screw(ed) | | | | Details |
| SCRAMSTM | surface controlled reservoir analysis and management system | | | | Details |
| SCRO | Subsea Control Room | | | | Details |
| SCRS | Sidewall Cores | | | | Details |
| scrub | scrubber | | | | Details |
| SCSFS | surface controlled selective flow system | | | | Details |
| Scsg | Surfae Casing | | | | Details |
| SCSI | Small Computer Standard Interface | | | | Details |
| SCSSSV | Surface Controlled Sub Surface Safety Valve | | | | Details |
| SCSSSV | Surface Control Sub-Surface Safety Valve | | | | Details |
| SCSSV | Surface-Controlled Subsurface Safety Valve | | | | Details |
| ScSSV | surface controlled subsurface safety valve | | | | Details |
| sctrd | scattered | | | | Details |
| SCU | Surface Control Unit | | | | Details |
| SCVF | Surface Casing Vent Flow | | | | Details |
| Scw | Saturation of Connate Water | | | | Details |
| SCWR | Slim Compensated Wave Resistivity tool (PathFinder) | | | | Details |
| SCWR | Slim Compensated Wave Resistivity | | | | Details |
| SD Ck | side door choke | | | | Details |
| SDACS | Surface Data Acquisition and Control System | | | | Details |
| SDC | Synthetic Dip Curves (1-4) | | | | Details |
| SDCA | Additional Dip Curves | | | | Details |
| SDCK | side door choke | | | | Details |
| sdfract | sand fractured | | | | Details |
| sdfract | sandfracked | | | | Details |
| SDHC | Secure Digital High Capacity | | | | Details |
| SDIC | Sonic Dual Induction | | | | Details |
| SDLC | Systems Development Life Cycle | | | | Details |
| SDNSC | Slim Density Neutron Standoff Caliper | | | | Details |
| sdoilfract | sand-oil fracked | | | | Details |
| sdwtrfract | sand water fractured | | | | Details |
| sdwtrfract | sand-water fracked | | | | Details |
| SDXC | Secure Digital Extended Capacity | | | | Details |
| SE NC | screw end American National Coarse thread | | | | Details |
| se/c | southeast corner | | | | Details |
| SEC | Securities and Exchange Commission | | | | Details |
| SEC | Securities Exchange Commission | | | | Details |
| sec | section | | | | Details |
| sec | secant | | | | Details |
| sec | second(ary) | | | | Details |
| sec | secretary | | | | Details |
| SECA | Societe Europeenne des Carburants Belgium | | | | Details |
| SEC-CC | Tubing, Cutter Service | | | | Details |
| SECGU | Section Gauge Log | | | | Details |
| SECT | section(s)(al)(ing) | | | | Details |
| SECWA | State Energy Commission of Western Australia Australia | | | | Details |
| SELECT | selection(tive)(tor) | | | | Details |
| SELFDISCH | SelfDischarger | | | | Details |
| SEPAC | Small Explorers and Producers Association of Canada | | | | Details |
| SEREPCA | Societe Elf de Recherches et d’Exploitation des Petroles au Cameroun Cameroon | | | | Details |
| SERVICES | SCHLUMBERGER WELL | | | | Details |
| SFC | Sand Face Completion | | | | Details |
| sfc | surface | | | | Details |
| SG&C | show gas & condensate | | | | Details |
| SG&C | show gas and condensate | | | | Details |
| SGCM | gas cut mud slightly | | | | Details |
| SGCM | slightly gas-cut mud | | | | Details |
| SGCO | gas cut oil | | | | Details |
| SGCO | slightly gas-cut oil | | | | Details |
| SGCSW | slightly gas cut salt water | | | | Details |
| SGCSW | slightly gas-cut salt water | | | | Details |
| SGCW | slightly gas cut water | | | | Details |
| SGCW | slightly gas-cut water | | | | Details |
| SGCWB | slightly gas cut water blanket | | | | Details |
| SGCWB | slightly gas-cut water blanket | | | | Details |
| SGCWC | slight gas cut water cushion | | | | Details |
| SGCWC | slightly gas-cut water cushion | | | | Details |
| SGS-C | Spectral Gamma Sonde | | | | Details |
| SHINC | Sundays, Holidays Included | | | | Details |
| SHOCK | Shcok Log | | | | Details |
| SICP | Shut-In Casing Pressure | | | | Details |
| SICP | shut in casing pressure | | | | Details |
| SICP | shutin casing pressure | | | | Details |
| SICP | Suez Oil Company Egypt and others | | | | Details |
| Sidpec | Sidi Kerir Petrochemicals Company | | | | Details |
| silc | siliceous | | | | Details |
| silic | silica, siliceous | | | | Details |
| SIMCON | Simultaneous Construction | | | | Details |
| SINOPEC | Chinese Petroleum and Chemical CorporationChina | | | | Details |
| SIPC | Saudi International Petrochemicals Co. Saudi Arabia | | | | Details |
| SISCO | Saudi Industrial Services Company | | | | Details |
| SIVCG | Saudi Industrial Venture Capital Group | | | | Details |
| SLC | Shell Leadership Challenge | | | | Details |
| SLC | steel line correction | | | | Details |
| SLNCR | silencer | | | | Details |
| SLPRC | Sierra Leone Petroleum Refining Co. Ltd. Sierra Leone | | | | Details |
| SMAC | Specific, Measurable, Achievable and Challenging (for personal targets) | | | | Details |
| SMPC | Subsea Multiphase Pump: Pump, which can increase flowrate and pressure of the untreated wellstream | | | | Details |
| SNCR | selective non-catalytic reduction | | | | Details |
| SNEPCo | Shell Nigeria Exploration and Production Company | | | | Details |
| SNOC | Seychelles National Oil Co. Ltd. Seychelles | | | | Details |
| SNTC | Schlumberger Norway Technology Center | | | | Details |
| SO&GCM | slightly oil & as cut mud | | | | Details |
| SO&GCM | slightly oil- and gas-cut mud | | | | Details |
| SOC | Shell Only Cost (for Shell account) | | | | Details |
| SOC | screen only completion | | | | Details |
| SOC | start of cycle | | | | Details |
| SOC | Sirte Oil Company Libya | | | | Details |
| Socal | Standard Oil Company of California | | | | Details |
| Socar | State Oil Company of Azerbaijan | | | | Details |
| SOCAR | State Oil Company of the Azerbaijan Republic Azerbaijan | | | | Details |
| SOCDET | Sydney Oil Co. Drilling & Exploration Australia | | | | Details |
| SOCIR | Societe Congo-Italianne de Raffinage Dem. Rep. of the Congo | | | | Details |
| SOCM | oil cut mud slightly oil cut | | | | Details |
| SOCM | slight oil-cut mud | | | | Details |
| SOCMI | synthetic organic chemical manufacturing industry | | | | Details |
| SOCMI | Synthetic Organic Chemical Industry | | | | Details |
| SOCO | Single most overruling communication objective | | | | Details |
| Socony | Standard Oil Company of New York | | | | Details |
| socsw | salt water slightly oil cut water | | | | Details |
| SOCSW | slight oil-cut salt water | | | | Details |
| socw | slightly oil cut water | | | | Details |
| SOCW | slight oil-cut water | | | | Details |
| SOCWB | slightly oil cut water blanket | | | | Details |
| SOCWB | slight oil-cut water blanket | | | | Details |
| SOCWC | slightly oil cut water cushion | | | | Details |
| SOCWC | slight oil-cut water cushion | | | | Details |
| SOHIC | Stress-oriented Hydrogen-induced Cracking | | | | Details |
| somct | somastic coated | | | | Details |
| SONACOL | Sociedad Nacional de Oleoductos Ltda. Chile | | | | Details |
| SONACPP | Societe Nationale de Commercialisation des Produits Petrolieres Benin | | | | Details |
| SONATRACH | Entreprise Nationale Sonatrach Algeria | | | | Details |
| SONCB | Sonic Calibration Log | | | | Details |
| SOPC | Suez Oil Processing Company Egypt | | | | Details |
| SORC | Sharjah Oil Refining Company | | | | Details |
| SPARC | Scalable Processor Architecture Reduced instruction set Computer | | | | Details |
| SPC | Spill prevention and control | | | | Details |
| SPC | Supreme Petroleum Council | | | | Details |
| SPC | Syrian Petroleum Co. Syria | | | | Details |
| SPC | Singapore Petroleum Company Ltd. Singapore | | | | Details |
| SPC | Societe Cherifienne des Petroles Morocco | | | | Details |
| SPC BVI | Sonatrach Petroleum Corp. British V.I. | | | | Details |
| SPCAN | Special core analysis | | | | Details |
| SPCC | spill prevention control and countermeasures | | | | Details |
| SPCC | PLAN Spill Prevention Control and Countermeasure Plan | | | | Details |
| spcl | special | | | | Details |
| spcr | spacer | | | | Details |
| SPCT | Spectral | | | | Details |
| SPCU | Subsea Power and Control Unit | | | | Details |
| SPDC | Saudi Petrochemical Development Company | | | | Details |
| spec | specification | | | | Details |
| speck | speckled | | | | Details |
| SpectraS | SpectraScan - spectral gamma ray | | | | Details |
| Spectrum | A Function of Frequency | | | | Details |
| spic | spicule(ar) | | | | Details |
| SPIC | Southern Petrochemical Industries Corp. Ltd. India | | | | Details |
| spl cham | sample chamber | | | | Details |
| SPMC | Single-Phase Multisample Module (MDT sample bottle) (see comment!) | | | | Details |
| SPOC | Single Point of Contact | | | | Details |
| sq cg | squirrel cage | | | | Details |
| sq cm | square centimeter | | | | Details |
| SRBC | Susquehanna River Basin Commission | | | | Details |
| SREC | Seismic Record Log | | | | Details |
| SS and C | Same Sea and Country coast | | | | Details |
| SSC | Sulfide Stress Cracking | | | | Details |
| SSC | Sulphide Stress Cracking | | | | Details |
| SSC | stress sulfide cracking Occurs when metal is in tension and exposed to H2S and water Generates atomic hydrogen Hydrogen moves between grains of the metal Reduces metal ductility | | | | Details |
| SSCC | Sulphide Stress Corrosion Cracking | | | | Details |
| SSCP | Subsea Cryogenic Pipeline | | | | Details |
| SSCR | Shaped Steel Caternary Riser | | | | Details |
| SSCS | Subsea Control System | | | | Details |
| SSCSV | Sub Surface Control Safety Valve | | | | Details |
| SSHINC | Saturdays, Sundays, Holidays INCluded | | | | Details |
| SSPC | Sinopec SenMei (Fujian) Petroleum Co. Ltd. | | | | Details |
| ST&C | short thread and coupled, a connection description | | | | Details |
| ST&C | short threads & coupling | | | | Details |
| STATCAN | Statistics Canada ex Dominion, Bureau of Statistics (DBS) | | | | Details |
| STC | STC Log | | | | Details |
| STC | Saudi Telecommunications Company | | | | Details |
| stcky | sticky | | | | Details |
| stncl(d)(g) | stencil(ed)(ing) | | | | Details |
| struc | structure, structural | | | | Details |
| suc | sucrose, sucrosic | | | | Details |
| Suco | Suez Oil Company | | | | Details |
| SUCO | Suez Oil CompanyEgypt | | | | Details |
| sucr | sucrosic | | | | Details |
| suct | suction | | | | Details |
| svc | service | | | | Details |
| svcu | service unit | | | | Details |
| sw/c | southwest corner | | | | Details |
| SWC | Side Wall Core | | | | Details |
| SWC | Standard Well Catalogue | | | | Details |
| Swc | Connate Water saturation (Residual water saturation) | | | | Details |
| Swc | Connate Water | | | | Details |
| SWC | Sidewall Coregun | | | | Details |
| SWC | Sidewall Coring Gun | | | | Details |
| SWC | sidewall cores | | | | Details |
| SWC | Corgun | | | | Details |
| SWC | Sidewall Coring | | | | Details |
| SWC | Sidewall Corgun | | | | Details |
| SWCC | Saline Water Conversion Corporation | | | | Details |
| swcm | salt water cut mud | | | | Details |
| SWCM | saltwater-cut mud | | | | Details |
| SWFRACT | sand water fractured | | | | Details |
| SYC | SEYCHELLES | | | | Details |
| Syc | Sycamore | | | | Details |
| SYCOPOL | Oil Spill Control Assn. of France France | | | | Details |
| SYNSCP | synchroscope | | | | Details |
| SZAFCO | South Zaafarana Oil Company | | | | Details |
| T&BC | top & bottom chokes | | | | Details |
| T&BC | top and bottom chokes | | | | Details |
| T&C | Terms & Conditions of a contract | | | | Details |
| T&C | threaded and coupled | | | | Details |
| T&C | topping and coking | | | | Details |
| T/C | tank car | | | | Details |
| T/C | turbine compressor | | | | Details |
| TAC | Tubing Anchor | | | | Details |
| TACH | tachometer | | | | Details |
| TAIC | The Arab Investment Company | | | | Details |
| TBC | To Be Confirmed | | | | Details |
| TBC | To Be Continued | | | | Details |
| TC | (T/C)Time Charter | | | | Details |
| TC | Temporary Contract (Consultants, Lump sum package) | | | | Details |
| TC | TURKS AND CAICOS ISLANDS | | | | Details |
| TC | time constant | | | | Details |
| TC | tubing choke | | | | Details |
| TC | temperature controller | | | | Details |
| TC | tool closed | | | | Details |
| TC | top choke | | | | Details |
| TC | Temporary Container | | | | Details |
| TCA | Total Corrosion Allowance | | | | Details |
| TCA | TURKS AND CAICOS ISLANDS | | | | Details |
| TCAL | Through-Tubing (X-Y) Caliper Log | | | | Details |
| TCC | tag closed cup(flash) | | | | Details |
| TCC | thermofor catalytic cracking | | | | Details |
| TCC | tubing and casing cutter | | | | Details |
| TCD | CHAD | | | | Details |
| tce | tonne of coal equivalent | | | | Details |
| TCF | Temperature Correction Factor | | | | Details |
| TCF | Temporary Construction Facilities | | | | Details |
| TCF | Trillion Cubic Feet (of gas) | | | | Details |
| TCF | Trigger Charge Firing Head | | | | Details |
| TCF | Trillion Cubic Feet | | | | Details |
| Tcf | Trillion cubic feet of natural gas | | | | Details |
| Tcf, | TCF trillion cubic feet | | | | Details |
| Tcf/d | TCF/D trillion cubic feet per day | | | | Details |
| TCFe | TCFe: trillion cubic feet equivalent | | | | Details |
| TCFG | Trillion cubic feet of natural gas | | | | Details |
| TCG | Temporary Container Gebaude | | | | Details |
| TCI | Tunsgten Carbide Insert (a type of rollercone drillbit) | | | | Details |
| TCI | Telecommunications Company of Iran | | | | Details |
| TCL | Tubing conveyed logging run | | | | Details |
| TCM | Technical Committee Meeting | | | | Details |
| TCO | Total Cost of Operations | | | | Details |
| TCP | Tubing Conveyed Perforating | | | | Details |
| TCP | Time Charter Party | | | | Details |
| TCP | Tubing Conveyed Perforations | | | | Details |
| TCP | tricresyl phosphate | | | | Details |
| TCP | Trans-Canada Pipe Lines Ltd. | | | | Details |
| TCP/IP | Transmission Control Protocol / Internet Protocol | | | | Details |
| TCPD | Tubing-Conveyed Perforating Depth | | | | Details |
| TCR | Tubing Conveyed Release | | | | Details |
| TCSH | Thru Tubing Caliper Shift (PLT) | | | | Details |
| TCT | Time Charter Trip | | | | Details |
| TCT | true crystallization temperature | | | | Details |
| TCU | Thermal Combustion Unit | | | | Details |
| TCV | temperature control valve | | | | Details |
| TDC | Technical Design Consultants | | | | Details |
| TDTCP | TDT CPI Log | | | | Details |
| TEC | Tubing Encapsulated Conductor (smart kit electrical umbilical) | | | | Details |
| tech | technical, technician | | | | Details |
| TECHINT | Compania Technica Internacional Brazil | | | | Details |
| Technical | Information Service | | | | Details |
| TECOP | Technical Economic Commercial Organizational Politico Societal | | | | Details |
| TEFC | Totally Enclosed Fan Cooled | | | | Details |
| TEFC | totally enclosed, fan cooled | | | | Details |
| TEGC | Thermal Expansion Gas Chromatograph | | | | Details |
| TEMPSC | Totally Enclosed Motor Propelled Survival Survival Craft | | | | Details |
| Tepco | Tokyo Electric Power Company | | | | Details |
| TETCO | Texas Eastern Transmission Corp. | | | | Details |
| TGC | Tubular Goods Jet Cutter | | | | Details |
| THC | TerminalHandling Cost | | | | Details |
| THC | total hydrocarbons | | | | Details |
| THC | top hole choke | | | | Details |
| TIC | temperature indicator controller | | | | Details |
| TIDCO | Tamil Nadu Industrial Development Corporation | | | | Details |
| TLC | Tough Logging Condition (logging tools will be run on pipe) | | | | Details |
| TLC | Tough Logging Conditions | | | | Details |
| TMC | Thousand Million Cubic feet | | | | Details |
| TMCM | Tranverse Mercator Central Meridian | | | | Details |
| TMPC | Transmediterranean Pipeline Co. Ltd. Algeria | | | | Details |
| TOC | Top Of Cement | | | | Details |
| TOC | Total Organic Content/Carbon | | | | Details |
| TOC | Total Organic Compound | | | | Details |
| TOC | total organic compounds | | | | Details |
| TOC | tag open cup(flash) | | | | Details |
| TOCP | top of cement plug | | | | Details |
| tons/cd | tons per calendar day | | | | Details |
| TORC | Thai Oil Refinery Co. Thailand | | | | Details |
| TPC | Tubing Performance Curve (same as VLP & outflow curve) | | | | Details |
| TPC | total plate count (see comment) | | | | Details |
| TPC | Turkish Petroleum Company | | | | Details |
| Tpc | pseudo-critical temperature [°R] | | | | Details |
| TPC | tubing pressure, closed | | | | Details |
| TPDC | Tanzanian Petroleum Development Corp. Tanzania | | | | Details |
| TPIC | Turkish Petroleum International Company Ltd. Turkey | | | | Details |
| TPOC | Turkish Petroleum Overseas Company | | | | Details |
| TPOC | Turkish Petroleum Overseas Company Turkey | | | | Details |
| TRACECA | The Transport Corridor Europe-Caucasus-Asia | | | | Details |
| Track | a recording of one measurement from a log | | | | Details |
| TRACL | Tractor Log | | | | Details |
| TRANSCO | Transcontinental Gas Pipe Line Corp. | | | | Details |
| TRC | Total Reportable Cases (see comment) | | | | Details |
| TRC | Takreer Research Center | | | | Details |
| TRC | temperature recorder controller | | | | Details |
| TRCF | Total Reportable Case Frequency (see comment) | | | | Details |
| TRCFR | Total Recordable Case Frequency Rate | | | | Details |
| TRCR | Tracer Survey | | | | Details |
| TRIC | Talk and Risk Identification Card | | | | Details |
| TRNDC | transducer | | | | Details |
| TRSCSSSV | Tubing Retrievable Surface Controlled Sub-Surface Safety Valve | | | | Details |
| TRSCSSV | tubing-retrievable, surface-controlled, subsurface safety valves (Weatherford tool) | | | | Details |
| TRSCSSV | Tubing Retrievable Surface Controlled Sub-Surface Valve | | | | Details |
| TRSSSCV | Tubing Retrievable Sub Surface Safety Control Valve | | | | Details |
| TSCA | Toxic Substances Control Act | | | | Details |
| Tscf | Trillion standard cubic feet (gas volume) | | | | Details |
| TSITC | temperature survey indicated top cement at | | | | Details |
| TTC | Through Tubing Conveyed | | | | Details |
| TTC | Calliper (Thru-Tubing) | | | | Details |
| TTC | through-tubing caliber | | | | Details |
| TTOC | Theoretical Top Of Cement | | | | Details |
| Tuck | Tucker | | | | Details |
| TVDC | Time Versus Depth Curve (drilling) | | | | Details |
| Tw Cr | Twin Creek | | | | Details |
| TWC | Thick Wall Cylinder (core test) | | | | Details |
| TWCV | Two-Way Check Valve | | | | Details |
| TYC | The Yemen Company | | | | Details |
| U/C | under construction | | | | Details |
| UASC | United Arab Shipping Company | | | | Details |
| UC | upper casing | | | | Details |
| UCC | Union Carbide Corporation | | | | Details |
| UCG | Underground Coal Gasification | | | | Details |
| UCH | use customer’s hose | | | | Details |
| UCI | Unique Client Identification (number) | | | | Details |
| UCP | Upstream Choke Pressure | | | | Details |
| UCS | Unconfined Compressive Strength/Stress (core test) | | | | Details |
| UCS | unconfined compressive strength, a measure of the formation strength form compressive tests on core | | | | Details |
| UCSIP | Union des Chambres Syndicales de l’Industrie du Petrole France | | | | Details |
| UCSU | Upstream Commissioning and Start-Up | | | | Details |
| UDC | Unit Development Cost | | | | Details |
| UIC | Underground Injection Control | | | | Details |
| UKCS | United Kingdom Continental Shelf | | | | Details |
| ULC | Underwriters Laboratory of Canada (see comment) | | | | Details |
| ULCC | Ultra Large Crude Carrier | | | | Details |
| ULCC | Ultra Large Crude Carriers | | | | Details |
| ULCC | ultra-large crude carrier | | | | Details |
| ULCGR | Uncompressed LDC CNL Gamma Ray Log | | | | Details |
| UMCA | Umbilical Midline Connection Assembly | | | | Details |
| UNC | Universal Naming Convention | | | | Details |
| UNC | unified coarse thread | | | | Details |
| UNCC | United Nations Compensation Commission | | | | Details |
| unconf | underreaminq | | | | Details |
| unconf | unconformity | | | | Details |
| uncons | unconsolidated | | | | Details |
| unconsol | unconsolidated | | | | Details |
| UNCTAD | United Nations Conference on Trade and Development | | | | Details |
| UNESCO | United Nations Educational, Scientific and Cultural Organization | | | | Details |
| UNFC | United Nations Framework Classification | | | | Details |
| UNFCC | United Nations Framework Convention Climate Change | | | | Details |
| UNHCR | United Nations High Commission on Refugees | | | | Details |
| Unicef | United Nations International Children Emergency Fund | | | | Details |
| UNIVAC | Universal Automatic Computer | | | | Details |
| UNOCAL | Union Oil of California | | | | Details |
| UNSCOM | United Nations Special Commission | | | | Details |
| UOCO | Union Oil Company | | | | Details |
| UPAC | International Union Of Pure and Applied Chemistry | | | | Details |
| UPC | Universal Product Code | | | | Details |
| UPCT | Universal Perforating Correlation Tool (SLB GR & CCL combination) | | | | Details |
| UPDC | United Petroleum Development Company | | | | Details |
| USC | Unless Sooner Commenced | | | | Details |
| USCB | United Saudi Commercial Bank | | | | Details |
| USCG | U.S. Coast Guard | | | | Details |
| USPARC | Ultra Scalable Processor Architecture Reduced instruction set Computer | | | | Details |
| UTC | Universal Time Coordinated | | | | Details |
| UTC | Unit Technical Cost | | | | Details |
| UUIWCTAUTC | Unless Used In Which Case Time Actually Used To Count. | | | | Details |
| v.c. | very common | | | | Details |
| vac | vacuum | | | | Details |
| vac | vacant | | | | Details |
| vac | vacation | | | | Details |
| VC | Value Creation | | | | Details |
| Vc | Velocity across gravel pack at perf tunnel | | | | Details |
| VC | SAINT VINCENT AND THE GRENADINES | | | | Details |
| VCDT | Vienna Canyon Diablo Troilite | | | | Details |
| VCF | Volume Correction Factor | | | | Details |
| Vcl | clay Volume | | | | Details |
| VCM | Vinyl Chloride Monomer | | | | Details |
| VCP | vitrified clay pipe | | | | Details |
| VCT | SAINT VINCENT AND THE GRENADINES | | | | Details |
| VGC | viscosity-gravity constant | | | | Details |
| VHGCM | very heavily (highly) gas cut mud | | | | Details |
| VHGCM | very heavily(highly) gas-cut mud | | | | Details |
| VHGCSW | very heavily (highly) has cut salt water | | | | Details |
| VHGCSW | very heavily(highly) gas-cut salt water | | | | Details |
| VHGCW | very heavily (highly) gas cut water | | | | Details |
| VHGCW | very heavily(highly) gas-cut water | | | | Details |
| VHO&GCM | very_ heavily (highly) oil & gas cut mud | | | | Details |
| VHO&GCM | very heavily(highly) oil and gas-cut mud | | | | Details |
| VHO&GCSW | very_ heavily (highly) oil & gas cut salt water | | | | Details |
| VHO&GCSW | very heavily(highly) oil and | | | | Details |
| VHO&GCW | very heavily (highly) oil & gas cut water | | | | Details |
| VHO&GCW | very heavily(highly) oil and gas-cut water | | | | Details |
| VHOCM | very heavily (highly) oil cut mud | | | | Details |
| VHOCM | very heavily(highly) oil-cut mud | | | | Details |
| v-HOCM | very heavily oil-cut mud | | | | Details |
| VHOCSW | very heavily (highly) oil cut salt water | | | | Details |
| VHOCSW | very heavily(highly) oil-cut salt water | | | | Details |
| VHOCW | very heavily (highly) oil cut water | | | | Details |
| VHOCW | very heavily(highly) oil-cut water | | | | Details |
| vi sc | viscosity | | | | Details |
| VISC | Viscosity | | | | Details |
| VLAC | very light amber cut | | | | Details |
| VLCC | Very Large Crude Carrier | | | | Details |
| VLCC | Very Large Crude Carriers | | | | Details |
| VLRC | Virtual Learning Reality Center | | | | Details |
| VLTCS | Very Low Temperature Carbon Steel | | | | Details |
| VOC | Volatile Organic Compounds | | | | Details |
| VOC | volatile organic carbon | | | | Details |
| VOC | Volatile Organic Compound | | | | Details |
| VOCs | Volatile Organic Compounds | | | | Details |
| VPC | Formation Multi-Tester | | | | Details |
| VQC | Vendor Qualification criteria | | | | Details |
| VSC | volumetric subcommittee | | | | Details |
| VSEC | Vertical Section | | | | Details |
| VSGCM | very slightly gas cut mud | | | | Details |
| VSGCM | very slightly gas-cut mud | | | | Details |
| VSGCSW | very slightly gas cut salt water | | | | Details |
| VSGCSW | very slightly gas-cut salt water | | | | Details |
| VSGCW | very slightly gas cut water | | | | Details |
| VSGCW | very slightly gas-cut water | | | | Details |
| VSO&GCM | very slightly oil & gas cut mud | | | | Details |
| VSO&GCM | very slightly oil and gas-cut mud | | | | Details |
| VSO&GCSW | very slightly oil & gas cut salt water | | | | Details |
| VSO&GCSW | very slightly oil and gas-cut salt water | | | | Details |
| VSOCM | very slightly oil cut mud | | | | Details |
| VSOCM | very slightly oil-cut mud | | | | Details |
| vsocsw | very slightly oil cut salt water | | | | Details |
| VSOCSW | very slightly oil-cut salt water | | | | Details |
| vsocw | very slightly oil cut water | | | | Details |
| VSOCW | very slightly oil-cut water | | | | Details |
| VTFDC | Vertical Thickness FDC CNL Log | | | | Details |
| VTRC | Vertilog/Vertline | | | | Details |
| W Cr | Wall Creek | | | | Details |
| W/C | Water Cushion | | | | Details |
| W/C | water cut | | | | Details |
| W/CLR | water cooler | | | | Details |
| wac | Waiting On Cement | | | | Details |
| WACOG | Weighted Average Cost of Gas | | | | Details |
| WACT | weight averaged catalyst temperature | | | | Details |
| WBEAC | Well Barrier Element Acceptance Criteria | | | | Details |
| WC | Watercut | | | | Details |
| WC | West Coast | | | | Details |
| WC | Wildcat well | | | | Details |
| WC | Weather Condition | | | | Details |
| WC | water cut | | | | Details |
| WC | water cushion | | | | Details |
| WC | water closet | | | | Details |
| WC | water cushion(DST) | | | | Details |
| WC | wildcat | | | | Details |
| WC | Wolfe City | | | | Details |
| WCCON | Whether Custom Cleared Or Not | | | | Details |
| WCCR | workers’ compensation claim rate | | | | Details |
| WCM | water cut mud | | | | Details |
| WCM | water-cut mud | | | | Details |
| WCO | Well Control | | | | Details |
| wco | water cut oil | | | | Details |
| WCO | water-cut oil | | | | Details |
| WCP | Well Completions & Productivity (Schlumberger) | | | | Details |
| WCPR | workers’ compensation premium rate | | | | Details |
| WCQR | Well Testing Compensated Quartz Gauge Recorder | | | | Details |
| WCS | Worst Case Scenarios | | | | Details |
| WCSB | Western Canadian Sedimentary Basin | | | | Details |
| WCTS | water cushion to surface | | | | Details |
| WDC | Well Design Criteria (The basis document for designing the well) | | | | Details |
| WEC | World Energy Council UK | | | | Details |
| WeCTOGA | West Central Texas Oil and Gas Association | | | | Details |
| Wepco | Western Desert Petroleum Company | | | | Details |
| WEPCO | Western Desert Petroleum Company Egypt | | | | Details |
| WFAC | Waveform Acoustic Log | | | | Details |
| WGC | Wet Gas Compressor (Subsea Framo Eng) | | | | Details |
| WHC | Well Head Compressor | | | | Details |
| WHCP | Well Head Control Panel | | | | Details |
| Wich | Alb Wichita Albany | | | | Details |
| Wich | Wichita | | | | Details |
| WLC | Wireline Composite Log | | | | Details |
| WLC | Wireline core | | | | Details |
| WLC | wireline coring | | | | Details |
| WLTOHC | WaterLine-TO-HatchCoaming (distance) | | | | Details |
| WOC | Wait on Cement | | | | Details |
| WOC | Water Oil Contact (or Oil Water Contact) | | | | Details |
| WOC | waiting on cement or water oil contact | | | | Details |
| WOC | waiting on cement | | | | Details |
| WOC | Wahe Oil Company Libya | | | | Details |
| WOCR | waiting on completion rig | | | | Details |
| WOCT | Wait On Cement Transport | | | | Details |
| WOCT | waiting on cable or completion tools, standard tools or completion unit | | | | Details |
| WOCT | waiting on cable tools or completion tools | | | | Details |
| Wolfc | Wolfcamp | | | | Details |
| WOT&C | waiting on tank and connection | | | | Details |
| WPC | Water Pollution Control | | | | Details |
| WPC | World Petroleum Congress | | | | Details |
| WPC | World Petroleum Council | | | | Details |
| WPC | Western Pressure Controls (a service company) | | | | Details |
| WPC | World Petroleum Council (formerly World Petroleum Congress) | | | | Details |
| WPC | World Petroleum Congresses UK | | | | Details |
| WQC | water quality act | | | | Details |
| WQCA | Water Quality Control Act | | | | Details |
| WQCB | Water Quality Control Board | | | | Details |
| WRIC | Wire Rods in Coils | | | | Details |
| WRSCSSV | Wireline Retrievable Surface Controlled Sub-Surface Valve | | | | Details |
| WRSCSSV | Wireline Retrievable Surface Control SSV | | | | Details |
| WRSSSCV | Wireline Retrievable Sub Surface Safety Control Valve | | | | Details |
| WSCL | Well Site Core Log | | | | Details |
| WSCS | Well Services Completions Supervisor | | | | Details |
| WTAC | Well Testing & Acquisition Cabin (SLB) | | | | Details |
| WTC | Workshop & Transfer Container (SLB Abbre) | | | | Details |
| WTC | Westhollow Technology Center | | | | Details |
| wtr.cush | water cushion | | | | Details |
| X/C | ssheX / sshinC | | | | Details |
| XAC | ASHMORE AND CARTIER ISLANDS | | | | Details |
| XC | Cross-connection, cross correlation | | | | Details |
| XC | CORAL SEA ISLANDS | | | | Details |
| XCDTM | a brand name biopolymer | | | | Details |
| XCS | CORAL SEA ISLANDS | | | | Details |
| XMAC | Cross-Multipole Array Acoustic log | | | | Details |
| XMAC | Cross-Multipole Array Acoustilog | | | | Details |
| XMACE | XMAC Elite (Next generation of XMAC) | | | | Details |
| XMAC-E | XMAC Elite (Next generation of XMAC) | | | | Details |
| XMAC-E | XMAC Elite (Next generation XMAC) | | | | Details |
| XPGC | Xiamen Petroleum Group Co. Ltd. China | | | | Details |
| XPHLOC | Crossplot Selection for XPHI | | | | Details |
| XSEC | Cross Section | | | | Details |
| X-SEC | cross section | | | | Details |
| XTC | Extra-coat protective pipeline coating made of polyethylene or polypropylene material | | | | Details |
| XYC | XY Calliper Log (Halliburton) | | | | Details |
| XYC | XY Caliper Log | | | | Details |
| XYCL | X-Y Caliper | | | | Details |
| YC | Your Cable | | | | Details |
| YGC | Yemen Gas Company | | | | Details |
| YLNGC | Yemen Liquefied Natural Gas Company | | | | Details |
| YORC | Yemen Oil Refining Company | | | | Details |
| YPC | Yemen Petroleum Company | | | | Details |
| YPC | Yemen Petroleum Company Yemen | | | | Details |
| ZADCO | Zakum Development Company | | | | Details |
| ZADCO | Zakum Development Co. Abu Dhabi | | | | Details |
| ZnCl2 | zinc chloride | | | | Details |
| ZRCC | Zhenhai Refining&Chemical Co. Ltd. China | | | | Details |
| PCS | Process Control System | | | | Details |
| CIT | Casing Inspection Tool | | | | Details |
| FL/EC | Flux Leakage/Eddy Current tool | | | | Details |
| HUCS | Hydrocarbon Ultra-Fine Cement Systems | | | | Details |
| ECSS | Externally Catalyzed Silicate Systems | | | | Details |
| ICSS | Internally catalyzed silicate systems | | | | Details |
| MCPS | Metal-complexed polymer systems | | | | Details |
| OCPS | Organically Complexed Polymer systems | | | | Details |
| CSCS | Crystallized superabsorbent copolymer system | | | | Details |
| CrystalSeal | See PGS | | | | Details |
| CWF | Conformance While-Fracturing | | | | Details |
| CSC | Crystallized superabsorbent copolymer | | | | Details |
| HUC | Hydrocarbon Ultra-Fine Cements | | | | Details |
| ECS | Externally Catalyzed Silicates | | | | Details |
| ICS | Internally catalyzed silicates | | | | Details |
| MCP | Metal-complexed polymers | | | | Details |
| OCP | Organically Complexed Polymers | | | | Details |
| EPCF | Engineering, Procurement, Construction and Finance | | | | Details |
| ICOFC | Iranian Central Oil Fields Company | | | | Details |
| LOPC | Loss of Primary Containment | | | | Details |
| ECA | Energy Conversion Agreement | | | | Details |
| NIORDC | National Iranian Oil Refining & Distribution Company | | | | Details |
| IRITEC | Consortium of Iran International Engineering Company | | | | Details |
| C term | Construction | | | | Details |
| NICO | Naftiran Intertrade Company | | | | Details |
| AOGC | Arvandan Oil & Gas Company | | | | Details |
| POGC | Pars Oil & Gas Company | | | | Details |
| NISOC | National Iranian South Oil Company | | | | Details |
| IPC | Iranian Petroleum Contract | | | | Details |
| Clu | Sondencluster | well cluster | | | Details |
| CBD | Casing Bottom Driller | | | | Details |
| CBL | Casing Bottom Logger | | | | Details |
| RMCS | Mud Cake Resistivity | | | | Details |
| MCST | Mud Cake Sample Temperature | | | | Details |
| CS | Casing size | | | | Details |
| CW | Casing Weight | | | | Details |
| TCS | Time Circulation Stopped | | | | Details |
| MCSS | Mud Cake Sample Source | | | | Details |
| LCC | Logging Company Code | | | | Details |
| CHOKE | Choke size | | | | Details |
| CFMT | Flowmeter Type | | | | Details |
| CE | compensation efficiency | | | | Details |
| CTF | Coal Tar Fuel | | | | Details |
| WPC | Wood Preservative Cresote | | | | Details |
| DCR | Deep Carbonate Revisit | | | | Details |
| AICD | Autonomous Inflow Control Device | | | | Details |
| RCP | Rate contrtolled Production | | | | Details |
| CFTC | Commodity Futures Trading Commission | | | | Details |
| GECF | Gas Exporting Countries Forum | | | | Details |
| CEGH | Central European Gas Hub | | | | Details |
| CBM | Controlled Beam Migration | | | | Details |
| DGC | Downhole Gas Compressor | | | | Details |
| URC | Upstream Research Company | | | | Details |
| BAC | Budget At Completion | | | | Details |
| EAC | Estimate At Completion | | | | Details |
| VAC | Variance At Completion | | | | Details |
| GPDC | General Process Design Criteria | | | | Details |
| DC | Decision Criteria | | | | Details |
| HAC | Hazardous Area Classification | | | | Details |
| PCP | Passive Corrosion Protection | | | | Details |
| CC | Corrosion Coupns | | | | Details |
| CF | Complexity Factor | | | | Details |
| TC | Type Curve | | | | Details |
| CO | Controlling | | | | Details |
| DPGWC | Deepest Possible gas water contact | | | | Details |
| CS | Kammerlift ohne Syphonrohr | | | | Details |
| HCDP | Hydrocarbon Development Planning | | | | Details |
| CIO | Chief Information Officer | | | | Details |
| CTO | Chief Technology Officer | | | | Details |
| CPX | Complex Litho Model | | | | Details |
| GCA | gas connect austria | | | | Details |
| CPP | China Petroleum Pipeline | | | | Details |
| CMMS | Computerized Maintenance Management Framework | | | | Details |
| MCM | Million Cubic Meter | | | | Details |
| MCM/d | Million Cubic Meter per day | | | | Details |
| PCE | Personal consumption expenditures | | | | Details |
| CPI | Consumer Price Index | | | | Details |
| CSB | Continuous Side By Side | | | | Details |
| CtC | Center to Center | | | | Details |
| FAC | field acceptance criteria | | | | Details |
| ACR | Anti-collision Rule | | | | Details |
| CF | Clearance Factor | | | | Details |
| MAC | Minimum allowable clearance | | | | Details |
| TC | Travelling cylinder | | | | Details |
| TCR | Tolerable collision risk | | | | Details |
| ISCWSA | Industry Steering Committee on Wellbore Survey Accuracy | | | | Details |
| GC | Gas Condensate | | | | Details |
| Psc | Standard Pressure | | | | Details |
| Tsc | Standard Temperature | | | | Details |
| LQCRM | Log Quality Control Reference Manual | | | | Details |
| CM | Corrective Maintenance | | | | Details |
| PM/CM | Preventive Maintenance/Corrective Maintenance | | | | Details |
| CWM | Commingled Well Model | | | | Details |
| CLL | Cluster Lead | | | | Details |
| SNDC | Sand Control | | | | Details |
| SDC | Sellers Delivery Capacity | | | | Details |
| C0 | C0 Kammerlift | | | | Details |
| C2 | Kondensat | | | | Details |
| CS | CS Kammerlift ohne Syphonrohr | | | | Details |
| PC | PC Plungerkammerlift | | | | Details |
| EC | EC Einpressonde über Casing | | | | Details |
| SC | SC Schlucksonde über Casing | | | | Details |
| CT | Cased hole Test | | | | Details |
| CRD | Constant Rate Drawdown | | | | Details |
| CRB | Constant Rate Build-up | | | | Details |
| PCF | Partially Communicating Faults | | | | Details |
| CA | Dietz shape factors | | | | Details |
| CSFR | Structure of fundamental | | | | Details |
| MMCFG | Million Cubic feet of gas | | | | Details |
| CMF | Choke Manifold | | | | Details |
| CT | Capacity Test | | | | Details |
| DCA | Decline Curve Analysis | | | | Details |
| DC | Decline Curve | | | | Details |
| APAC | Asia Pacific | | | | Details |
| SAARC | South Asian Association for Regional Cooperation | | | | Details |
| SCO | Shanghai Cooperation Organization | | | | Details |
| ACCC | Australian Competition and Consumer Commission | | | | Details |
| VPAC | Vehicle Performance & Compliance Monitor | | | | Details |
| CMB | Channel Mouth Bar | | | | Details |
| TCV | Total Calculated Volume | | | | Details |
| WCF | Weight Correction Facto | | | | Details |
| CNF | Confirmation | | | | Details |
| hwc | free-water level (height of initial water level) | | | | Details |
| HWC | Hydrocarbon Water Contact | | | | Details |
| UNEC | Un Economic | | | | Details |
| CPUC | California Public Utilities Commission | | | | Details |
| CUT | Coordinated Universal Time | | | | Details |
| TUC | Temps universel coordonné | | | | Details |
| OPC | Operations Controller | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| CAD | Canadian Dollar | | | | Details |
| CVE | Cape Verde Escudo | | | | Details |
| CLP | Chilean Peso | | | | Details |
| CNY | Yuan Renminbi | | | | Details |
| COP | Colombian Peso | | | | Details |
| CDF | Francs | | | | Details |
| CRC | Costa Rican Colon | | | | Details |
| CUP | Cuban Peso | | | | Details |
| CZK | Czech Koruna | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| ECS | Ecuador Sucre | | | | Details |
| SVC | El Salvador Colon | | | | Details |
| XCD | East Carribean Dollar | | | | Details |
| CHF | Swiss Franc | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| SCR | Seychelles Rupee | | | | Details |
| CHF | Swiss Franc | | | | Details |
| Cl | Clay | | | | Details |
| T/C | Tubing / Casing | | | | Details |
| C/T | Caing / Tubing | | | | Details |
| UC | Unit Conversion | | | | Details |
| MC | Member Country | | | | Details |
| MCs | Member Countries | | | | Details |
| MDTC | Multi-Disciplinary Training Course | | | | Details |
| DUC | drilled but uncompleted | | | | Details |
| RCL | Resistivity of Clay | | | | Details |
| ROMA_CPX | apparent matrix density | | | | Details |
| VCL | volume of clay | | | | Details |
| CP | sonic compaction factor | | | | Details |
| PHICL | clay corrected porosity | | | | Details |
| RHOBCL | bulk density of clay | | | | Details |
| ROMU_CPX | clay/gas corrected matrix density | | | | Details |
| dc | Dual Completion | | | | Details |
| TC | Triple Completion | | | | Details |
| ICIP | Initial Closed In Pressure | | | | Details |
| CTR | Click Through Rate | | | | Details |
| CPC | Cost Per Click | | | | Details |
| FOC | Free Of Charge | | | | Details |
| CUP | Clean Up Period | | | | Details |
| CTP | Constant Terminal Pressure | | | | Details |
| IOTC | Iran Oil Terminals Company | | | | Details |
| NIOPDC | National Iranian Oil Products Distribution Company | | | | Details |
| ECL | Exploration Consultants Limited | | | | Details |
| cnl | Contour | | | | Details |
| cnt | CPS-3 Contour | | | | Details |
| cs | Color Scale | | | | Details |
| dca | Decline Curve Analysis Forecast | | | | Details |
| gcp | Grid Control Point | | | | Details |
| loc | Location | | | | Details |
| sec | Second Data | | | | Details |
| xsc | Cross-Section | | | | Details |
| CPS | Contour Plotting System | | | | Details |
| CV | Calculated Variable | | | | Details |
| DIC | Dissolved Inorganic Carbon | | | | Details |
| IRC | Internal Reserves Committee | | | | Details |
| HSTC | High Speed Telemetry Cartridge | | | | Details |
| CWH | Capacitance Water Holdup | | | | Details |
| CFF | Calliper Fullbore Flowmeter | | | | Details |
| CFT | Caliper-Fullbore Temperature | | | | Details |
| FBC | Fullbore Calliper Flowmeter | | | | Details |
| FCF | Fixed Cage Flowmeter | | | | Details |
| GCT | Gamma-CCL-Temperature | | | | Details |
| CHE | Cable Head | | | | Details |
| CNT | Roller Centraliser | | | | Details |
| XYC | X-Y Calliper | | | | Details |
| FCS | fixed cage section | | | | Details |
| CTP | Critical Temperature and Pressure | | | | Details |
| CGM | Custom Google Map | | | | Details |
| CGM | Computer Graphics Metaware | | | | Details |
| CPS | cement-pumping skid | | | | Details |
| LRMC | Long Run Marginal Cost | | | | Details |
| JICA | Japan International Cooperation Agency | | | | Details |
| CFO | Chief Financial Officer | | | | Details |
| CEO | Chief Executive Officer | | | | Details |
| COO | Chief Operating Officer | | | | Details |
| CAO | Chief Accounting Officer | | | | Details |
| CAO | Chief Administrative Officer | | | | Details |
| CAO | Chief Analytics Officer | | | | Details |
| CTO | Chief Transformation Officer | | | | Details |
| Bleiabdruck | Impression Block | Impression Block | | | Details |
| ECT | Engineering, Completion & Testing | | | | Details |
| COM | Chance Of Maturation | | | | Details |
| Phc | Hydrocarbon Chance | | | | Details |
| Prc | Recovery Chance | | | | Details |
| Psc | Skills & Technology Chance | | | | Details |
| Pac | Authorization & Market Chance | | | | Details |
| COF | Cost of Failure | | | | Details |
| CSRA | Cost & Schedule Risk Analysis | | | | Details |
| recov | Recoverable | | | | Details |
| Co | Compressibility of Oil | | | | Details |
| Cw | Compressibility of Water | | | | Details |
| Cg | Compressibility of Gas | | | | Details |
| DEC | Drilling Engineering Center | | | | Details |
| DEC | Drilling Engineering Coordinator | | | | Details |
| CEF | Connecting Europe Facility | | | | Details |
| FCO | Foreign Company | | | | Details |
| CC | Control Cabin | | | | Details |
| LCF | low cycle fatigue | | | | Details |
| COD | coefficient of determination | | | | Details |
| AECV | additional emergency control valve | | | | Details |
| HCW | Hydrocarbon Water Contact | | | | Details |
| CCCS | Clean Current Cost of Supply | | | | Details |
| MMBC | Million Barrels Condensate | | | | Details |
| MMBC/D | Million Barrels Condensate per day | | | | Details |
| BC | Barrels Condensate | | | | Details |
| MBC | Thousand Barrels Condensate | | | | Details |
| MBC/D | Thousand Barrels Condensate per day | | | | Details |
| COM | Communications | | | | Details |
| CD | Corporate Development | | | | Details |
| CS | Corporate Strategy | | | | Details |
| HCI | Human Capital Index | | | | Details |
| Comp | Compartment | | | | Details |
| CWDB | Central Well Database | | | | Details |
| LTC | Long Thread Coupling | | | | Details |
| ABC | After Before Compare | | | | Details |
| WCI | Water Cut Increased | | | | Details |
| WCD | Water Cut Decreased | | | | Details |
| CG | Cushion Gas | | | | Details |
| Sc | Scenario | | | | Details |
| CL | Casing Leck | Casing Leak | | | Details |
| HCS | Hydrocarbon shows inferred | | | | Details |
| UNEC | Production currently uneconomic# | | | | Details |
| IPC | Integrated Petroleum Contact | | | | Details |
| Schnittteufe | Cut window depth | | | | Details |
| Sackloch | Rat hole | | | | Details |
| WACC | Weighted-average cost of capital | | | | Details |
| WCT | Water Cut | | | | Details |
| WCUT | Water Cut | | | | Details |
| OCUT | Oil Cut | | | | Details |
| CR | Contingent Resources | | | | Details |
| Attic | Attic oil | | | | Details |
| BOCL | a kind of a weight set packer | | | | Details |
| IC | Infinite Conductivity | | | | Details |
| CPUB | Constant Pressure Upper Boundary | | | | Details |
| CPLB | Constant Pressure Lower Boundary | | | | Details |
| $/scf | U.S. dollars per standard cubic feet | U.S. dollars per standard cubic feet | Dollar pro Standard-Kubikfuß | dollars américains par pieds cubes standard | Details |
| µg/dscm | micrograms per dry standard cubic meter | micrograms per dry standard cubic meter | Mikrogramm pro trockenen Normkubikmeter | microgrammes par mètre cube standard sec | Details |
| 2CAL | 2-Arm Caliper Log | 2-Arm Caliper Log | 2-Arm-Schieber-Log | 2-Arm Caliper Log | Details |
| 2CEX | 2-Arm Caliper Log (Extended Reach) | 2-Arm Caliper Log (Extended Reach) | 2-Arm Caliper Log (Extended Reach) | 2-Arm Caliper Log (Extended Reach) | Details |
| 3C | three components seismic acquisition (x, y and z) | three components seismic acquisition (x, y and z) | drei Komponenten Seismik (x, y und z) | trois composantes d'acquisition sismique (x, y, z) | Details |
| 3CAL | 3-Arm Caliper Log | 3-arm Caliper Log | 3-Arm Caliper Log | 3-bras Caliper Connexion | Details |
| 4C | Four Channel | Four channel | Vier-Kanal | Quatre canaux | Details |
| 4CAL | 4-Arm Caliper Log | 4-Arm Caliper Log | 4-Arm Caliper Log | 4-Arm Caliper Log | Details |
| 4CEX | 4-Arm Caliper Log (Extended Reach) | 4-Arm Caliper Log (Extended Reach) | 4-Arm Caliper Log (Extended Reach) | 4-Arm Caliper Log (Extended Reach) | Details |
| A CHL | Atlantic Chlorinlog | Atlantic Chlorinlog | Atlantic Chlorinlog | Chlorinlog Atlantique | Details |
| A/C | air conditioning | air conditioning | Klimaanlage | climatisation | Details |
| A/CLD | air cooled | air cooled | luftgekühlt | air conditionné | Details |
| A/CLR | air cooler | air cooler | Klimaanlage | refroidisseur d'air | Details |
| AACT | Aluminium Clay Tool | Aluminum Clay Tool | Aluminium-Lehm-Werkzeug | Aluminium Clay Outil | Details |
| AACT | Aluminium Activation Clay Tool | Aluminum Activation Clay Tool | Aluminium Aktivierung Ton-Tool | Aluminium Activation Clay Outil | Details |
| AAODC | American Association of Oilwell Drilling Contractors (obsolete; superseded by IADC) | American Association of Oilwell Drilling Contractors (obsolete; superseded by IADC) | American Association of Oilwell Drilling Contractors (veraltet; ersetzt durch IADC) | American Association of Oilwell Drilling Contractors (obsolète, remplacé par IADC) | Details |
| AAODC | American Association of Oilwell Drilling Contractors | American Association of Oilwell Drilling Contractors | American Association of Oilwell Drilling Contractors | American Association of Oilwell Drilling Contractors | Details |
| AAODC | See IADC | See IADC | Siehe IADC | Voir IADC | Details |
| ABC | Analysis Behind Casing (using CHDT) | Analysis Behind Casing (using CHDT) | Analyse Hinter Gehäuse (mit CHDT) | Analyse Derrière Boîtier (en utilisant CHDT) | Details |
| ABC | Audit Bureau of Circulation | Audit Bureau of Circulation | Audit Bureau of Circulation | Audit Bureau of Circulation | Details |
| ABCM | Activity Based Costing Model | Activity Based Costing Model | Activity Based Costing Modell | Activity Based Costing Model | Details |
| abd loc | abandoned location | abandoned location | verlassenen Standort | emplacement abandonné | Details |
| A-BHC | Amplitude Logging | amplitude Logging | Amplitude Logging | Logging amplitude | Details |
| MMCFG/d | Million Cubic feet of gas per day | | | | Details |
| CFS | Counter Flush Sonde | Shallow water wells drilled in Austria | | | Details |
| CF | Counter Flush (Sonde) | Shallow water wells drilled in Austria | | | Details |
| CFP | Counter Flush Protess | Shallow water wells drilled in Protess/Austria | | | Details |
| WGC | Water Gas Contact | | | | Details |
| OGC | Oil Gas Contact | | | | Details |
| HCDT | Hydrocarbon Down To | | | | Details |
| HCWC | Hydrocarbon Water Contact | | | | Details |
| CC | Climate Change | | | | Details |
| CDP | Carbon Disclosure Project | | | | Details |
| CPO | Chief Procurement Officer | | | | Details |
| MPSC | Maximum Production System Capacity | | | | Details |
| CPEC | China-Pakistan Economic Corridor | | | | Details |
| CGV | Cushion Gas Volume | | | | Details |
| WWC | Well Water Cut | | | | Details |
| FWC | Field Water Cut | | | | Details |
| COFR | Connection Oil Flow Rate | | | | Details |
| FWCT | Field Water CuT | | | | Details |
| WWCT | Well Water Cut | | | | Details |
| SCOPE | Step Change in Operations and Production Efficiency | | | | Details |
| OEOC | Oil Exploration Operations Company | | | | Details |
| C/N | Class Number | | | | Details |
| CN | Class Number | | | | Details |
| SCP | Salt Creep Pressure | | | | Details |
| NCA | Northern Calcareous Alps | | | | Details |
| PSCM | Procurement & Supply Chain Management | | | | Details |
| SGC | Southern Gas Corridor | | | | Details |
| Molch | pig | scraper, go-devil | | | Details |
| Molchschleuse | Scraper trap | | | | Details |
| GCE | Gas Cap Expansion | | | | Details |
| UCS | Ultimate Cash Surplus | | | | Details |
| Ct | Center | | | | Details |
| Ct-Ct | Center to Center (distance of wells in down hole) | | | | Details |
| IOWC | Initial Oil Water Contact | | | | Details |
| IGWC | Initial Gas Water Contact | | | | Details |
| IWOC | Initial Water Oil Contact | | | | Details |
| IWGC | Initial Water Gas Contact | | | | Details |
| A/C | Anti Collision | | | | Details |
| AC | Anti Collision | | | | Details |
| DSCs | Drill String Compensators | | | | Details |
| DSC | Drill String Compensator | | | | Details |
| DSC | Drilling Safety Costs | | | | Details |
| DLCs | Direct Line Compensators | | | | Details |
| DLC | Direct Line Compensator | | | | Details |
| CMCs | Crown Mounted Compensators | | | | Details |
| CMC | Crown Mounted Compensators | | | | Details |
| CASW | Casing Weight | | | | Details |
| SRVC | Service Company | | | | Details |
| RCF | Reservoir Cubic Feet | | | | Details |
| IPSC | Integrated Production System Capacity | | | | Details |
| MPC | Maximum Production Capacity | | | | Details |
| CDI | Connate Water Compressibility Index | | | | Details |
| O.W.C. | Oil Water Contact | | | | Details |
| C&E | Cause & Effect | | | | Details |
| C & E | Cause & Effect | | | | Details |
| YC | Youth Committee | | | | Details |
| IWDC | Initial Well Design Criteria | | | | Details |
| TWC | Thick Walled Cylinder (Strength) | | | | Details |
| PPC | Pay Per Click | | | | Details |
| DCC | Drilling Center Cockpit | | | | Details |
| Schlucksonde | Schluckbohrung | Disposal well, | | | Details |
| FCF | Free Cash Flow | Or FCFF | | | Details |
| FCFF | free cash flow to firm | Or FCF | | | Details |
| DMAIC | Define, Measure, Analyze, Improve | | | | Details |
| C&I | Control & Instrumentation | | | | Details |
| Schleuse | Lubricator for running | | | | Details |
| cpt | cone penetration test | | | | Details |
| ecs | environmental compatibility study | | | | Details |
| ect | environmental control truck | | | | Details |
| mvc | mechanical vapor compression | | | | Details |
| octg | oil country tubular goods | | | | Details |
| pcl | pipe conveyed logging | | | | Details |
| MOC | Motor Current | | | | Details |
| BUC | Bucharest | | | | Details |
| LKHC | Lowest-Known Hydrocarbons | | | | Details |
| CRC | Corporate Reserves Committee | | | | Details |
| COP | Cease Of Production | | | | Details |
| COB | Close of Business | | | | Details |
| COP | Close Of Play | | | | Details |
| ACP | Alkali-co-solvent-polymer | | | | Details |
| MACC | Microscopic analysis of core and cuttings | | | | Details |
| CPOR | Core porosity | | | | Details |
| CPERM | Core Permeability | | | | Details |
| %/CM | percent per centimeter | | | | Details |
| %/cm | percent per centimeter | | | | Details |
| (bbl/d)/(c/s) | (barrel per day) per (cycle per second) | | | | Details |
| (c/s)/(ft/min) | (cycle per second) per (foot per minute) | | | | Details |
| (c/s)/(m/min) | (cycle per second) per (meter per minute) | | | | Details |
| (c/s)/(m/s) | (cycle per second) per (meter per second) | | | | Details |
| (m3/d)/(c/s) | (cubic meter per day) per (cycle per second) | | | | Details |
| (m3/h)/(c/s) | (cubic meter per hour) per (cycle per second) | | | | Details |
| (m3/s)/(c/s) | (cubic meter per second) per (cycle per second) | | | | Details |
| (MCF/d)/(rev/s) | (thousand cubic feet per day) per (revolution per second) | | | | Details |
| (MSCF/d)/ft/psi | GeoFrame legacy unit | | | | Details |
| (MSCF/d)/psi | GeoFrame legacy unit | | | | Details |
| (S/m)/(meq/cm3) | (siemen per meter) per (millieqivalent per cubic centimeter) | | | | Details |
| c/ft | revolution per thousand feet | | | | Details |
| kPa2/cP | kilopascal squared per thousand centipoise | | | | Details |
| seca | millisecond (angle) | | | | Details |
| degC/m | degree celsius per hundred meters | | | | Details |
| mT/cm | gauss per centimeter | | | | Details |
| 1/degC | inverse degree Celsius | | | | Details |
| A/cm2 | ampere per square centimeter | | | | Details |
| AC2 | ampere per square centimeter | | | | Details |
| ACRE | acre | | | | Details |
| acre | acre | | | | Details |
| ACRE.FT | acre foot | | | | Details |
| acre.ft | acre foot | | | | Details |
| ASECOND | second (angle) | | | | Details |
| B/C3 | barn per cubic centimeter | | | | Details |
| b/cm3 | barn per cubic centimeter | | | | Details |
| B2CP | bar squared per centipoise | | | | Details |
| bar2/cp | GeoFrame legacy unit | | | | Details |
| bar2/cP | bar squared per centipoise | | | | Details |
| barn/cm3 | GeoFrame legacy unit | | | | Details |
| bbl.s/(d.c) | (barrel per day) per (cycle per second) | | | | Details |
| bbl/(acre.ft) | barrel per acre per foot | | | | Details |
| bbl/acre | barrel per acre | | | | Details |
| bbl/acre.ft | GeoFrame legacy unit | | | | Details |
| bbl/SCF | barrel per standard cubic foot | | | | Details |
| BRC | Brazilian cruzado | | | | Details |
| BSDC | (barrel per day) per (cycle per second) | | | | Details |
| c.min/(s.ft) | (revolution per second) per (foot per minute) | | | | Details |
| c.min/(s.m) | (revolution per second) per (meter per minute) | | | | Details |
| c.s/(s.m) | (revolution per second) per (meter per second) | | | | Details |
| c.u. | GeoFrame legacy unit | | | | Details |
| C/C | count ratio | | | | Details |
| C/C3 | coulomb per cubic centimeter | | | | Details |
| C/cm3 | coulomb per cubic centimeter | | | | Details |
| C/G | coulomb per gram | | | | Details |
| C/g | coulomb per gram | | | | Details |
| c/m3 | revolution per cubic meter | | | | Details |
| c/min | revolution per minute | | | | Details |
| c/s | revolution per second | | | | Details |
| c/s2 | revolution per second per second | | | | Details |
| C2/S | square centimeter per second | | | | Details |
| C3 | cubic centimeter | | | | Details |
| C3/M | cubic centimeter per minute | | | | Details |
| C3/S | cubic centimeter per second | | | | Details |
| CAD | Canadian dollar | | | | Details |
| CAL | calorie (international) | | | | Details |
| cal | calorie (international) | | | | Details |
| cc | GeoFrame legacy unit | | | | Details |
| CD | candela | | | | Details |
| cd | candela | | | | Details |
| CENTIMETER | centimeter | | | | Details |
| CENTIMETERS | centimeter | | | | Details |
| CENTIMETRE | centimeter | | | | Details |
| CENTIMETRES | centimeter | | | | Details |
| CF | cubic foot | | | | Details |
| CFCF | cubic foot per cubic foot | | | | Details |
| CFPR | cubic foot per radian | | | | Details |
| CHF | Swiss franc | | | | Details |
| Ci | curie | | | | Details |
| cm/a | centimeter per year | | | | Details |
| CM/M | centimeter per minute | | | | Details |
| CM/S | centimeter per second | | | | Details |
| cm/s | centimeter per second | | | | Details |
| CM/Y | centimeter per year | | | | Details |
| CM2 | square centimeter | | | | Details |
| cm2 | square centimeter | | | | Details |
| cm2/s | square centimeter per second | | | | Details |
| cm3 | cubic centimeter | | | | Details |
| cm3/cm3 | cubic centimeter per cubic centimeter | | | | Details |
| cm3/h | cubic centimeter per hour | | | | Details |
| cm3/min | cubic centimeter per minute | | | | Details |
| cm3/s | cubic centimeter per second | | | | Details |
| CMPR | cubic meter per radian | | | | Details |
| CMSS | (cubic meter per second) per (cycle per second) | | | | Details |
| CNTS | count | | | | Details |
| CNY | Chinese yuan renminbi | | | | Details |
| COP | Colombian peso | | | | Details |
| cps | count per second | | | | Details |
| CPS | count per second | | | | Details |
| CPUT | count total over a specified time window | | | | Details |
| CRC | Costa Rican colon | | | | Details |
| CSK | Czechoslovakian koruna | | | | Details |
| CUP | Cuban peso | | | | Details |
| CYP | Cyprus pound | | | | Details |
| D/CM | dyne per centimeter | | | | Details |
| d/MSCF | day per thousand standard cubic feet | | | | Details |
| darcy | darcy (GeoFrame legacy unit) | | | | Details |
| DARCY | darcy | | | | Details |
| darcy.m | GeoFrame legacy unit | | | | Details |
| DC/F | degree celsius per foot | | | | Details |
| DC/K | degree celsius per kilometer | | | | Details |
| DC/M | degree celsius per meter | | | | Details |
| DCHM | degree celsius per hundred meters | | | | Details |
| DCPH | degree celsius per hour | | | | Details |
| DCPM | degree celsius per minute | | | | Details |
| DCPS | degree celsius per second | | | | Details |
| DECN | decanewton | | | | Details |
| deg C | degree celsius | | | | Details |
| DEGC | degree celsius | | | | Details |
| degC | degree celsius | | | | Details |
| degC/(kgf/cm2) | degree celsius per kilogram per square centimeter | | | | Details |
| degC/30m | degree celsius per thirty meters | | | | Details |
| degC/bar | degree celsius per bar | | | | Details |
| degC/ft | degree celsius per foot | | | | Details |
| degC/h | degree celsius per hour | | | | Details |
| degC/km | degree celsius per kilometer | | | | Details |
| degC/kPa | degree celsius per kilopascal | | | | Details |
| degC/m | degree celsius per meter | | | | Details |
| degC/min | degree celsius per minute | | | | Details |
| degC/s | degree celsius per second | | | | Details |
| dyne/cm | dyne per centimeter (GeoFrame legacy unit) | | | | Details |
| DYNE/CM | dyne per centimeter | | | | Details |
| ECS | Ecuadorian sucre | | | | Details |
| fC | femtocoulomb | | | | Details |
| FSGC | (gram per cubic centimeter)-(foot per second) | | | | Details |
| ft.g/(s.cm3) | (foot per second)-(gram per cubic centimeter) | | | | Details |
| ft3/SCF | GeoFrame legacy unit | | | | Details |
| ftCla | foot (Clarke) | | | | Details |
| ftGoldCoast | Foot (Gold Coast) | | | | Details |
| g.ft/(cm3.s) | (gram per cubic centimeter)-(foot per second) | | | | Details |
| g/(cm3.ft) | gram per cubic centimeter per foot | | | | Details |
| g/(cm3.m) | gram per cubic centimeter per meter | | | | Details |
| G/C3 | gram per cubic centimeter | | | | Details |
| g/cc | gram per cubic centimeter | | | | Details |
| G/CM | gauss per centimeter | | | | Details |
| G/CM3 | gram per cubic centimeter | | | | Details |
| g/cm3 | gram per cubic centimeter | | | | Details |
| g/cm3.ft/s | GeoFrame legacy unit | | | | Details |
| GHC | Ghanian cedi | | | | Details |
| GPa/cm | gigapascal per centimeter | | | | Details |
| ICF | inverse cubic foot | | | | Details |
| ICM | inverse cubic meter | | | | Details |
| INCHES | inch | | | | Details |
| J/(s.degC.m2) | joule per second per degree celsius per square meter | | | | Details |
| J/s.oC.m2 | GeoFrame legacy unit | | | | Details |
| JSMC | joule per second per degree celsius per square meter | | | | Details |
| K/C2 | kilogram per square centimeter | | | | Details |
| K2CP | kilopascal squared per centipoise | | | | Details |
| K2KC | kilopascal squared per thousand centipoise | | | | Details |
| kC | kilocoulomb | | | | Details |
| KC2H | kilogram per square centimeter per hour | | | | Details |
| KC2M | (kilogram per square centimeter) per meter | | | | Details |
| kcal/(h.degC.m2) | kilocalorie per hour per degree celsius per square meter | | | | Details |
| kcal/h.oC.m2 | GeoFrame legacy unit | | | | Details |
| kcd | kilocandela | | | | Details |
| kgf/(cm2.h) | kilogram per square centimeter per hour | | | | Details |
| kgf/cm2 | kilogram per square centimeter | | | | Details |
| kgf/cm2.h | GeoFrame legacy unit | | | | Details |
| KHMC | kilocalorie per hour per degree celsius per square meter | | | | Details |
| kPa2/cP | kilopascal squared per centipoise | | | | Details |
| LCF2 | pound per hundred square feet | | | | Details |
| linkClarke | Link (Clarke) | | | | Details |
| M/C3 | milliequivalent per cubic centimeter | | | | Details |
| m3.s/(d.c) | (cubic meter per day) per (cycle per second) | | | | Details |
| m3.s/(h.c) | (cubic meter per hour) per (cycle per second) | | | | Details |
| m3.s/(s.c) | (cubic meter per second) per (cycle per second) | | | | Details |
| m3/(kg.cm2) | cubic meter per kilogram per square centimeter | | | | Details |
| m3/c | cubic meter per revolution | | | | Details |
| m3/kg.cm2 | GeoFrame legacy unit | | | | Details |
| M3KC | cubic meter per kilogram per square centimeter | | | | Details |
| mA/cm2 | milliampere per square centimeter | | | | Details |
| MAC2 | milliampere per square centimeter | | | | Details |
| mC | millicoulomb | | | | Details |
| MCF/d | thousand cubic feet per day | | | | Details |
| mCi | millicurie | | | | Details |
| mD.ft/cP | millidarcy-foot per centipoise | | | | Details |
| mD.m/cP | millidarcy-meter per centipoise | | | | Details |
| mD/cP | millidarcy per centipoise | | | | Details |
| MDCP | millidarcy per centipoise | | | | Details |
| MDFC | millidarcy-foot per centipoise | | | | Details |
| MDMC | millidarcy-meter per centipoise | | | | Details |
| meq/cm3 | milliequivalent per cubic centimeter | | | | Details |
| Mft3/acre | GeoFrame legacy unit | | | | Details |
| Mft3/acre.ft | GeoFrame legacy unit | | | | Details |
| MICROSECOND | microsecond | | | | Details |
| MICROSECONDS | microsecond | | | | Details |
| MILLIDARCY | millidarcy | | | | Details |
| MILLISECOND | millisecond | | | | Details |
| MILLISECONDS | millisecond | | | | Details |
| MKC2 | (cubic meter) per (kilogram per square centimeter) | | | | Details |
| MMHC | millimho per centimeter | | | | Details |
| MMSCF/d | GeoFrame legacy unit | | | | Details |
| MSCF/d | GeoFrame legacy unit | | | | Details |
| MSEC | millisecond | | | | Details |
| nC | nanocoulomb | | | | Details |
| nCi | nanocurie | | | | Details |
| NIC | Nicaraguan cordoba | | | | Details |
| oC | GeoFrame legacy unit | | | | Details |
| oC/h | GeoFrame legacy unit | | | | Details |
| oC/hm | GeoFrame legacy unit | | | | Details |
| oC/km | GeoFrame legacy unit | | | | Details |
| oC/m | GeoFrame legacy unit | | | | Details |
| P2CP | psi squared per centipoise | | | | Details |
| pC | picocoulomb | | | | Details |
| pCi | picocurie | | | | Details |
| pCi/g | picocurie per gram | | | | Details |
| PCIG | picocurie per gram | | | | Details |
| psi2/cP | psi squared per centipoise | | | | Details |
| SCF/d | cubic feet per day (GeoFrame legacy unit) | | | | Details |
| SCF/STB | cubic foot per barrel (GeoFrame legacy unit) | | | | Details |
| SCR | Seychelles rupee | | | | Details |
| SEC | second | | | | Details |
| seca | second (angle) | | | | Details |
| SECOND | second | | | | Details |
| SECONDS | second | | | | Details |
| SPCF | second per cubic foot | | | | Details |
| STB/MMSCF | standard barrel per million standard cubic feet | | | | Details |
| SVC | El Salvador colon | | | | Details |
| TC2S | 0.0001 square centimeter per second | | | | Details |
| uA/cm2 | microampere per square centimeter | | | | Details |
| UAC2 | microampere per square centimeter | | | | Details |
| UBCF | barrel per million cubic feet | | | | Details |
| uC | microcoulomb | | | | Details |
| uCi | microcurie | | | | Details |
| USEC | microsecond | | | | Details |
| A34H_UNC | Resistivity Medium Induction | | | | Details |
| ACAL | Average Caliper | | | | Details |
| BDCM | Bulk Densitiy compensated (Memory) | | | | Details |
| CAL1 | 4arm-Caliper1 | | | | Details |
| CAL2 | 4arm-Caliper2 | | | | Details |
| CALI | Caliper | | | | Details |
| CALX | Caliper from X-Axis of X-Y Caliper(s) | | | | Details |
| CDBD | Resistivity Deep Button down from RAB | | | | Details |
| CDBU | Resistivity Deep Button up from RAB | | | | Details |
| CGDN | Grain Density from Core | | | | Details |
| CGR | Uran_corrected gamma ray | | | | Details |
| CIL | Conductivity Induction | | | | Details |
| CILB | Conductivity Induction Backup | | | | Details |
| CILD | Deep Induction Conductivity | | | | Details |
| CKH | Horizontal Permeability from Core | | | | Details |
| CKV | Vertical Permeability from Core | | | | Details |
| CMBD | Resistivity Medium Button down from RAB | | | | Details |
| CMBU | Resistivity Medium Button up from RAB | | | | Details |
| CNC | Caliper corrected compensated Neutron Porosity | | | | Details |
| CNLSC | CN Long Space Counts | | | | Details |
| CNSSC | CN Short Space Counts | | | | Details |
| CNRAT | CN Ratio | | | | Details |
| CNPOR | CN selected Porosity | | | | Details |
| CNPORU | CN Limestone Porosity uncorrected | | | | Details |
| CCL | Casing Collar Locator Amplitude | | | | Details |
| CPOR | Core Porosity | | | | Details |
| CS6 | Lateral 6 ft. | | | | Details |
| CSBD | Resistivity Shallow Button down from RAB | | | | Details |
| CSBU | Resistivity Shallow Button up from RAB | | | | Details |
| CUDC | Conductivity of the Undisturbed Zone at Downhole Conditions | | | | Details |
| CVP1 | Cumulated Volume, CVP0 plus Mineral 1 | | | | Details |
| CVP2 | Cumulated Volume, CVP1 plus Mineral 2 | | | | Details |
| CVP3 | Cumulated Volume, CVP2 plus Mineral 3 | | | | Details |
| CXDC | Conductivity of the Flushed Zone at Downhole Conditions | | | | Details |
| DCAL | Diff.Caliper | | | | Details |
| DTC | Compressional Wave Slowness | | | | Details |
| DTMETRIC | Delta T Sonic in Meter | | | | Details |
| GRCA | Calibrated Gamma Ray | | | | Details |
| GRCH | Gamma Ray , Cased Hole | | | | Details |
| GRTC | Gamma Ray Total Counts, CountRate | | | | Details |
| HCGR | HNGS Computed Gamma Ray | | | | Details |
| MCAL | Microlog Caliper | | | | Details |
| RACLM | Resistivity LWD deep | | | | Details |
| RPCHM | Resistivity, Memory 2MHZ Comp. Borehole | | | | Details |
| VCL | Volume of Clay | | | | Details |
| VELC | Compressional Velocity | | | | Details |
| ZCOR | Density correction | | | | Details |
| ZDNC | Borehole Size, Mud weight corrected Density | | | | Details |
| BDCM | Bulk Densitiy compensated (Memory) | | | | Details |
| CALI | Caliper | | | | Details |
| DTCO | Delta T Sonic, Compressional | | | | Details |
| HCAL | HRCC Caliper Calibrated | | | | Details |
| RMIC | Micro Resistivity | | | | Details |
| RPCHM | Resistivity, Memory 2MHZ compensated Borehole | | | | Details |
| CKV | Vertical Permeability from Core | | | | Details |
| CPOR | Core Porosity | | | | Details |
| CUDC | Conductivity of the Undisturbed Zone at Downhole Conditions | | | | Details |
| CVP1 | Cumulated Volume, CVP0 plus Mineral 1 | | | | Details |
| CVP2 | Cumulated Volume, CVP1 plus Mineral 2 | | | | Details |
| CVP3 | Cumulated Volume, CVP2 plus Mineral 3 | | | | Details |
| CXDC | Conductivity of the Flushed Zone at Downhole Conditions | | | | Details |
| PHIE_CPX | Effective Porosity | | | | Details |
| SW_CPX | Formation Water Saturation <=1.0 | | | | Details |
| VBW_CPX | Volume of bound Water | | | | Details |
| VCAR | Volume Fraction of Carbonate Relative to Total Volume | | | | Details |
| VCL | Volume of Clay | | | | Details |
| VCL1 | Volume of Clay 1 Relative to Total Volume | | | | Details |
| VCLC | Volume of Calcite Relative to Total Volume | | | | Details |
| VCL_CPX | Volume of Clay | | | | Details |
| VELC | Compressional Velocity | | | | Details |
| VCOAL | Volume of Coal | | | | Details |
| VDOL_CPX | Volume of Dolomite | | | | Details |
| VLS_CPX | Volume of Limestone | | | | Details |
| VSND_CPX | Volume of Sand | | | | Details |
| ACQ | Annual Contract Quantity | | | | Details |
| BATNEEC | Best Available Technique Not Entailing Excessive Costs | | | | Details |
| COP | Community of Practice | | | | Details |
| CSA | Controlled Self Assessment | | | | Details |
| CSF | Critical Success Factor | | | | Details |
| CTR | Cost-Time-Resource Sheet | | | | Details |
| DCR | Design & Construction Regulations | | | | Details |
| DCS | Document Control System | | | | Details |
| EPCC | Engineering, Procurement, Construction and Comissioning | | | | Details |
| EPCI | Engineering, Procurement, Construction, and Installation | | | | Details |
| EPCM | Engineering, Procurement, Construction and Management | | | | Details |
| EPIC Contract | Engineer, Procure, Install and Commission | | | | Details |
| Excom | Exploration Committee | | | | Details |
| HC | Hydro Carbon | | | | Details |
| HVAC | Heating, Ventilating and Air Conditioning | | | | Details |
| OCM | Operational Comitee Meeting | | | | Details |
| PCO | Project Change Order | | | | Details |
| PMSC | Project Management Serivces Contract | | | | Details |
| PSCM | Procurement & Supply chain Management | | | | Details |
| RCC | Reimbursable Cost Contract | | | | Details |
| RCM | Reliability Centered Maintenance | | | | Details |
| SC | Steering Committee | | | | Details |
| SCR | Safety Case Regulations | | | | Details |
| TCoO | Total cost of Ownership | | | | Details |
| TRC | Total Recordable Cases (HSEQ) | | | | Details |
| TSCJs | Tree Subbly Control Jumpers | | | | Details |
| TUCO | Turbined Compressor | | | | Details |
| anhyc | anhydritic | | | | Details |
| bcm | becoming | | | | Details |
| Crs | coarse | | | | Details |
| Calct | calcite | | | | Details |
| Caren | cavernous | | | | Details |
| Cav | caving | | | | Details |
| Cbl | cobbles | | | | Details |
| CGL | CONGLOMERATE | | | | Details |
| Cglc | conglomeratic | | | | Details |
| Chlor | chloritic | | | | Details |
| Choc | chocolate | | | | Details |
| Clut | calcilutite | | | | Details |
| Clye | clayey | | | | Details |
| Cmtd | cemented | | | | Details |
| Cohesv | cohesive | | | | Details |
| Col | color | | | | Details |
| Condns | condensate | | | | Details |
| Cons | consolidated | | | | Details |
| Conv | convolute | | | | Details |
| Crbly | crumbly | | | | Details |
| Crpxl | cryptocrystalline | | | | Details |
| Crystal | crystals | | | | Details |
| Ct | cut | | | | Details |
| Ctg | cuttings | | | | Details |
| Cvg | cavings | | | | Details |
| Cxln | coarsely crystalline | | | | Details |
| decr | decreasingly | | | | Details |
| dolc | dolomitic | | | | Details |
| frac | fracture | | | | Details |
| fracs | fractures | | | | Details |
| hydcarb | hydrocarbon | | | | Details |
| incl | inclined | | | | Details |
| inclined | inclusious | | | | Details |
| incr | increasingly | | | | Details |
| latc | lateritic | | | | Details |
| LCM | lost circulation materials | | | | Details |
| lithic | lithographic | | | | Details |
| mic | micro | | | | Details |
| micmica | micromicaceous | | | | Details |
| micxl | microcrystalline | | | | Details |
| occ | occasionally | | | | Details |
| occl | occasional | | | | Details |
| patchy | patchy | | | | Details |
| ptcl | particles | | | | Details |
| rhmbc | rhombic | | | | Details |
| sidc | sideritic | | | | Details |
| suc | sucrosic | | | | Details |
| AACE | Association of the Advancement of Cost Engineering | | | | Details |
| AC | Actual Cost | | | | Details |
| ACE | Average capital employed | | | | Details |
| ACM | Annual Corporate Meeting | | | | Details |
| ACWP | Actual cost of work performed | | | | Details |
| APC | Advanced Process Control | | | | Details |
| BC | Business Case | | | | Details |
| Bcc | Blind carbon copy | | | | Details |
| BSC | Balance Scorecard | | | | Details |
| C&C | Construction & Commissioning | | | | Details |
| C&P | Contracting & Procurement | | | | Details |
| C&S | Campana & Schott | | | | Details |
| CAM | Corporate Annual Meeting | | | | Details |
| CAPEX | Capital Expenditures | | | | Details |
| CATS | Cross-Application Time Sheet | | | | Details |
| CC | Creaming Curve | | | | Details |
| CD | Corporate Design | | | | Details |
| CDU | Crude Distillation Unit | | | | Details |
| CF | Cash Flow | | | | Details |
| CFPS | Cash flow per share | | | | Details |
| CI | Corporate Identity | | | | Details |
| CI | Combustor Inspection | | | | Details |
| C-IMS | Central Integrated Management System | | | | Details |
| CISO | Chief Information Security Officer | | | | Details |
| CLSSM | Compensated Long Spaced Sonic MultiLink | | | | Details |
| CMDB | Configuration Management Database | | | | Details |
| COB | Close of business | | | | Details |
| CoM | Chance of Maturation | | | | Details |
| CoP | Community of Practice | | | | Details |
| CPM | Critical Path Methodology | | | | Details |
| CR | Contingent Resources | | | | Details |
| CR | Crystal Reports | | | | Details |
| CR | Change Request | | | | Details |
| CR | Contingent Resources | | | | Details |
| CR | SAP Crystal Reports | | | | Details |
| CRC | Corporate Reserves Committee | | | | Details |
| CRT | Commercial Road Transport | | | | Details |
| CSF | Critical Success Factor | | | | Details |
| CTO | Chief Technology Officer | | | | Details |
| CTR | Cost, Time and Resources | | | | Details |
| CV | Curriculum Vitae | | | | Details |
| CW | Calendar Week | | | | Details |
| DHC | Dry Hole Costs | | | | Details |
| DHC | Down Hole Choke | | | | Details |
| DMC | Dynamic Matrix Control | | | | Details |
| EDTC | Telemetry Cartridge | | | | Details |
| EGRC | Expert Group on Resource Classification | | | | Details |
| EMOC | Electronic Management of Change | | | | Details |
| ESCo | Energy Service Company | | | | Details |
| FC | Forecast | | | | Details |
| FCF | Free cash flow | | | | Details |
| FCO | field change order | | | | Details |
| FRC | Financial Reporting Council | | | | Details |
| HBC | High Resolution Borehole Compensated Sonic Log | | | | Details |
| HVAC | Heating, Ventilation and Air Conditioning | | | | Details |
| IHC | Inhouse Consulting | | | | Details |
| IHCIP | Initial Hydrocarbons In Place | | | | Details |
| IHRDC | International Human Resource Development Corporation | | | | Details |
| MCP | Major Capital Project(s) | | | | Details |
| MCS | Monte Carlo simulations | | | | Details |
| MEC | Middle East & Caspian | | | | Details |
| MECE | Mutually Exclusive, Collectively Exhaustive | | | | Details |
| MOC | Microsoft Office Communicator | | | | Details |
| NFC | National Fleet Card | | | | Details |
| NICE | Needs, Interests, Concerns and Expectations | | | | Details |
| NWC | Net Working Capital | | | | Details |
| OGRC | Oil & Gas Reserves Committee | | | | Details |
| PC | Project Charter | | | | Details |
| PC | Profit Center | | | | Details |
| PC | Petrom City | | | | Details |
| PCG | Parent Company Guarantee | | | | Details |
| PMC | Project Management Community | | | | Details |
| PMCC | Project Management Competence Center | | | | Details |
| PoC | Proof of Concept | | | | Details |
| ProCo | Project Coordinator | | | | Details |
| QC | Quality Check | | | | Details |
| QRC | Qualified Reserves Coordinator | | | | Details |
| RACI | Responsible, Accountable, Consulted, Informed | | | | Details |
| RCP | Resource Capacity Planning | | | | Details |
| RDC | Reserves Definition Committee | | | | Details |
| RSCT | Rotary Sidewall Coring (HRSCT) | | | | Details |
| RTC | Rail Tank Car | | | | Details |
| SC | Steering Committee | | | | Details |
| SCF | Standard Cubic Foot | | | | Details |
| SCOB | Standard Customer Offer Book | | | | Details |
| SEC | United States Securities and Exchange Commission | | | | Details |
| STC | Steering Committee | | | | Details |
| T&C | Terms and conditions | | | | Details |
| TC | Talent Challenge | | | | Details |
| TECOP | Technical, Economical, Commercial, Organizational, Political-Societal | | | | Details |
| TelCo | Telephone Conference | | | | Details |
| TGC | Tollgate Committee | | | | Details |
| TGLC | Tollgate Light Committee | | | | Details |
| TIC | Total external investment costs | | | | Details |
| TOC | Tasbulat Oil Company | | | | Details |
| UNFC | United Nations Framework Classification for Fossil Energy and Mineral Reserves and Resources | | | | Details |
| UNICEF | United Nations International Children's Emergency Fund | | | | Details |
| VC | Videoconference | | | | Details |
| w/c | week commencing | | | | Details |
| WACC | Weighted average cost of capital | | | | Details |
| ACT | Accident Control Technique | | | | Details |
| ACV | Approved Contract Value | | | | Details |
| ASCL | Acoustic Super Combo Log | | | | Details |
| BLC | Big Lever Club | | | | Details |
| C/w | Comes with | | | | Details |
| CA | Capital Allocation | | | | Details |
| CA | Corporate Affairs | | | | Details |
| CAPS | Corrective Action Preventive System | | | | Details |
| CAT | Corrective Action Team | | | | Details |
| CBP | Country Business Plan | | | | Details |
| CE | Capital Employed | | | | Details |
| CIIP | Condensate Initially In Place | | | | Details |
| CLFL | Choke Line Friction Losses | | | | Details |
| COB | Close of Business | | | | Details |
| CORAL | Cost Reduction Alliance Malaysia | | | | Details |
| CRP | Commercial Review Panel | | | | Details |
| CSA | Customer Service Agreement | | | | Details |
| CSF | Critical Success Factor | | | | Details |
| Csg. | Casing | | | | Details |
| CSR | Company Site Representative | | | | Details |
| CTC | Central Tender Committee | | | | Details |
| CTT | Cup type tester | | | | Details |
| DC | Drill collars | | | | Details |
| ECC | Emergency Control Co-ordinator | | | | Details |
| EPAC | Exploration & Production Audit Committee | | | | Details |
| EPBC | Exploration & Production Business Council | | | | Details |
| EPCC | Engineering, Procurement, Construction & Commissioning | | | | Details |
| F/C | Float collar Collar at the end of a casing used to land plug | | | | Details |
| FAC | First Aid Case | | | | Details |
| FC | Flowcheck To ensure that there is nothing flowing prior to POOH | | | | Details |
| FMC | Fine Medium Coarse | | | | Details |
| GDC | Gas District Cooling | | | | Details |
| GR/CCL | Gamma Ray/Casing Collar Logging | | | | Details |
| HACCP | Hazard Analysis and Critical Control Point | | | | Details |
| HSEC | Health, Safety & Environment Committee | | | | Details |
| HVAC | Heat Ventilation & Air-Conditioning | | | | Details |
| JMC | Joint Management Committee | | | | Details |
| MDC | Management Development Committee | | | | Details |
| MEDEVAC | Medical Emergency Evacuation | | | | Details |
| MRC | Modified Reference Case | | | | Details |
| MTC | Medical Treatment Case | | | | Details |
| NMDC | Non-magnetic drill collar | | | | Details |
| NSCC | (Type of thread like BTC) | | | | Details |
| OCM | Operations Committee Meeting | | | | Details |
| PDC | Polycrystalline Diamond Compact | | | | Details |
| PMCD | Pressurized mud cap drilling | | | | Details |
| PPSC | Petroleum Production Sharing Contractors | | | | Details |
| RCI | Reservoir Characterisation Instrument | | | | Details |
| RWC | Restricted Workday Case | | | | Details |
| SCE | Solid Control Equipment | | | | Details |
| SCRP | Slow Circulating Rate Pressure | | | | Details |
| SRC | Slow Circulating Rate. | | | | Details |
| STC | Short Term Contract | | | | Details |
| TC | Technology Council | | | | Details |
| TCC | Techno-Commercial Committee | | | | Details |
| TCoO | Total Cost of Ownership | | | | Details |
| TECOP | Technical Economical Commercial Organisational Political | | | | Details |
| TOC | Total Organic Content | | | | Details |
| TRCF | Total Recordable Cases Frequency | | | | Details |
| UFC | Unit Finding Cost | | | | Details |
| UOC | Unit Operating Cost | | | | Details |
| UPC | Unit Production Cost | | | | Details |
| USECHH | Use and Standard of Exposure of Chemicals Hazardous to Health | | | | Details |
| WOCS | Work Over Completion System | | | | Details |
| agcy | Agency | | | | Details |
| a/c | Account | | | | Details |
| B2C | Business to Consumer | | | | Details |
| CAO | Chief Accounting Officer | | | | Details |
| CAPM | Capital asset pricing model | | | | Details |
| CBOE | Chicago Board Options Exchange | | | | Details |
| CBOT | Chicago Board of Trade | | | | Details |
| CDO | Collateralized debt obligation | | | | Details |
| CDM | Change and Data Management | | | | Details |
| CDS | Credit default swap | | | | Details |
| COA | Chart of Account | | | | Details |
| CFA | Chartered Financial Analyst | | | | Details |
| CFD | Contract for difference | | | | Details |
| CFC | Consumption of fixed capital | | | | Details |
| CFCT | Cash Flow Cycle Time | | | | Details |
| CFM | Certified Financial Manager | | | | Details |
| CF OPEX | Operational Expenditures | | | | Details |
| CFS | Consolidated Financial Statement | | | | Details |
| CIA | Certified Internal Auditor | | | | Details |
| CIF | Cost Insurance With Freight | | | | Details |
| CIMA | Chartered Institute of Management Accountants | | | | Details |
| CIO | Chief Information Officer or Chief Investment Officer | | | | Details |
| CISA | Certified Information Systems Auditor | | | | Details |
| CMA | Certified Management Accountant | | | | Details |
| CMFB | Committee on monetary, finance and balance of payments statistics | | | | Details |
| CMO | Chief Marketing Officer | | | | Details |
| COB | Close of Business | | | | Details |
| COGS | Cost of Goods Sold | | | | Details |
| CPI | Consumer Price Index | | | | Details |
| CPU | Cost per Unit | | | | Details |
| CSI | Continual Service Improvement | | | | Details |
| CSO | Chief Security Officer | | | | Details |
| CRM | Customer Relationship Management | | | | Details |
| CVP | Cost Volume Profit | | | | Details |
| C2B | Consumer to business | | | | Details |
| CTO | Chief Technology Officer | | | | Details |
| C&F | Cost With Freight | | | | Details |
| CX | Customer Experience | | | | Details |
| EACs | Export Assistance Centers | | | | Details |
| ECB | European Central Bank | | | | Details |
| EPC | Export Promotion Council | | | | Details |
| ECGC | Export Credit Guarantee Corporation of India | | | | Details |
| FOMC | Federal Open Market Committee | | | | Details |
| FOC | Free Of Cost | | | | Details |
| GFCF | Gross fixed capital formation | | | | Details |
| GVC | Global Value Chain | | | | Details |
| HMRC | Her Majesty's Revenue and Customs | | | | Details |
| ICB | Industry Classification Benchmark | | | | Details |
| ICRM | Innovative Customer Relationship Management | | | | Details |
| ILCLP | IdentLogic Systems Customer Loyalty Program | | | | Details |
| Inc | Incorporated | | | | Details |
| KYC | Know Your Customer | | | | Details |
| MIC | Market Identifier Code | | | | Details |
| MPC | marginal propensity to consume | | | | Details |
| MWC | Managerial Working Capital | | | | Details |
| NCBO | No Change of Beneficial Ownership | | | | Details |
| NCND | Non Circumvent and Non Disclosure | | | | Details |
| OC | Opportunity Cost | | | | Details |
| OCF | Operating cash flow | | | | Details |
| OECD | Organisation for Economic Co operation and Development | | | | Details |
| OTC | Over the counter (finance) | | | | Details |
| PMAC | Period Moving Average Cost | | | | Details |
| QC | Quality control or Quality costs | | | | Details |
| ROIC | Return on Invested Capital | | | | Details |
| SCBA | Social Cost Benefit Analysis | | | | Details |
| TCO | Total Cost of Ownership | | | | Details |
| TCV | Total Contract Value | | | | Details |
| TBC | To Be Completed | | | | Details |
| VC | Venture Capital | | | | Details |
| WACC | Weighted average cost of capital | | | | Details |
| WC | Working capital | | | | Details |
| YTC | Yet To Confirm | | | | Details |
| zcyc | Zero Coupon Yield Curve | | | | Details |
| WCS | Western Canadian Select | | | | Details |
