| D | Düse | | | | Details |
| D | Depth | | | | Details |
| D | Development | | | | Details |
| D | Development dry | | | | Details |
| D | Deca | | | | Details |
| D | dual | | | | Details |
| D | Speichersonde mit Druckbeobachtung | gas storage well with observation option | | | Details |
| D | Decision | | | | Details |
| d | data from differential liberation experiment | | | | Details |
| D | Declination | | | | Details |
| D | D Vorgesehen als Piezosonde | | | | Details |
| D | Dynamic | | | | Details |
| D | day | | | | Details |
| D | darcy | | | | Details |
| d | day (mean solar) | | | | Details |
| DRAD | Drainage Radii|| | drainage radii | Entwässerungsradien | rayons de drainage | Details |
| DM | DurchMesser|| | Diameter | Durchmesser | Diamètre | Details |
| ID | Innen-durch-messer
|| | Interior by Knife | Interior von Messer | Intérieur par Knife | Details |
| KD | Kontrolldorndurchmesser|| | Check mandrel diameter | Überprüfen Dorndurchmesser | Vérifiez diamètre du mandrin | Details |
| WD | Wall Diameter|| | Wall Diameter | Wanddurchmesser | Diamètre mur | Details |
| WD | Wand Durchmesser|| | wall diameter | Wanddurchmesser | diamètre de paroi | Details |
| pd | Producing days|| | Producing days | Produzieren Tage | jours Production | Details |
| Bleiabdruck | Impression Block|| | impression block | Eindruck Block | bloc d'impression | Details |
| DS | Dokumentation und Statistik|| | Documentation and Statistics | Dokumentation und Statistik | Documentation et statistiques | Details |
| GDB | Gewinnungsdatenbank|| | Recovery database | Recovery-Datenbank | Base de données de récupération | Details |
| MLD | Mengen, Leistung, Dokumentation|| | Quantities, performance, documentation | Die Mengen, Leistung, Dokumentation | Quantités, performances, documentation | Details |
| PD | Production Department|| | Production Department | Produktionsabteilung | Département de production | Details |
| UDT | Umwelt- und Deponietechnik|| | Environmental and landfill technology | Umwelt- und Deponietechnik | Technologie de l'environnement et de la mise en décharge | Details |
| DA | Diplom Arbeit|| | thesis | These | thèse | Details |
| GRD | Gross Rate Decrease|| | Gross Rate Decrease | Bruttorate verkleinern | Taux brut Diminution | Details |
| ID | Injection rate Decrease|| | Injection rate Decrease | Einspeicherkapazität verkleinern | Diminution du taux d'injection | Details |
| ID | Injection Decrease|| | Injection Decrease | Injection verkleinern | Diminution d'injection | Details |
| DR | Druck|| | pressure | Druck | pression | Details |
| Drrep | Druck Representativ|| | pressure Representative | Druck Vertreter | Représentant de pression | Details |
| 3DSL | 3 Dimentional Stream Line|| | 3 Dimentional Streamline | 3 Dimentional Stream | 3 Dimentional Streamline | 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 |
| DHD | Deep Hole Drilling|| | Deep Hole Drilling | Tieflochbohren | Forage de trous profonds | Details |
| COD | coefficient of determination|| | coefficient of determination | Bestimmtheitsmaß | coefficient de détermination | Details |
| DMP | Daily Mud Parameters|| | Daily Mud parameter | Täglich Mud Parameter | paramètre Mud Daily | Details |
| D/S | Drilling Services|| | Drilling Services | Drilling Services | services de forage | Details |
| DS | Drilling Services|| | Drilling Services | Drilling Services | services de forage | Details |
| TID | Target Injection Differential|| | Target Injection Differential | Ziel Injection Differential | Cible Injection Différentiel | Details |
| TRD | Target Rate Deccrease|| | Target Rate Deccrease | Target Rate Deccrease | Target Rate Deccrease | Details |
| ad | Außendurchmesser|| | outer diameter | Außendurchmesser | diamètre extérieur | Details |
| DSB | DruckSchreiber Blatt|| | Pressure recorders Journal | Druck-Recorder Journal | enregistreurs de pression Journal | Details |
| KDM | Kopfdruckmessung|| | Column pressure | Säulendruck | pression de la colonne | Details |
| µg/dscm | micrograms per dry standard cubic meter | | | | Details |
| 2D | two-dimensional (geophysics) | | | | Details |
| 2D | Two dimensional | | | | Details |
| 3D | Three dimensional (geophysics) | | | | Details |
| 3D | Three dimensional | | | | Details |
| 3D | 3 Dimensional | | | | Details |
| 3D | Microseismograph | | | | Details |
| 3DEX | 3D Induction Logging Service | | | | Details |
| 4D | Multiple Three dimensional's overlapping each other (geophysics) | | | | Details |
| 4D | Four Dimensional | | | | Details |
| A&D | Acquisition & Divestment | | | | Details |
| A/CLD | air cooled | | | | Details |
| AADE | American Association of Drilling Engineers | | | | 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 |
| abd | abandoned | | | | Details |
| abd loc | abandoned location | | | | Details |
| abd-gw | abandoned gas well | | | | Details |
| abd-ogw | abandoned oil & gas well | | | | Details |
| abd-ow | abandoned oil well | | | | Details |
| abnd | abandoned | | | | Details |
| abndt | abundant | | | | Details |
| AC PAR D | Acoustic Parameter-Depth | | | | Details |
| acd | acidize(ed)(ing) | | | | Details |
| ACDS | Axilary compression tension sub | | | | Details |
| AD | Assistant Driller | | | | Details |
| AD | ANDORRA | | | | Details |
| AD | Associated Dissolved (natural gas) | | | | Details |
| AD | actual drilling | | | | Details |
| AD | authorized depth | | | | Details |
| ADA | Air Drilling Assosiates | | | | Details |
| ADB | Asian Development Bank (—) | | | | 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 |
| add | additive | | | | Details |
| ADDC | Association of Desk and Derrick Clubs | | | | Details |
| ADDCAP | Abu Dhabi Drilling Chemicals and Products Ltd. Abu Dhabi | | | | Details |
| addl | additional | | | | Details |
| ADE | Asphaltene Deposition Envelop | | | | Details |
| ADEP | Awaiting Development with Exploration Potential, referring to an asset | | | | Details |
| ADEPT | Adaptive Electromagnetic Propagation Log | | | | Details |
| ADESCO | Abu Dhabi Emergency Committee of Offshore Operators | | | | Details |
| ADF | Automatic Diverter Flowmeter | | | | Details |
| ADGAS | Abu Dhabi Gas Liquefaction Co. Ltd. Abu Dhabi | | | | Details |
| ADH | adhesive | | | | Details |
| ADIPEC | Abu Dhabi International Petroleum Conference | | | | Details |
| adj | adjustable | | | | Details |
| ADL | above detection level | | | | Details |
| ADM | Administration Manager | | | | Details |
| adm | administration, administrative | | | | Details |
| ADMA | Abu Dhabi Marine Operating Company | | | | Details |
| ADMA-OPCO | Abu Dhabi Marine Operating Co. Abu Dhabi | | | | Details |
| ADN | Azimuthal Density Neutron (Schlumberger) | | | | Details |
| ADN | Azimuthal Density Neutron | | | | 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 |
| ADOM | adomite | | | | Details |
| ADP | automatic data processing | | | | 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 |
| adpt | adapter | | | | Details |
| ADR | Appropriate Dispute Resolution (see comment) | | | | Details |
| ADROC | Advanced Rock Properties Report | | | | Details |
| ADSC | Abu Dhabi Shipbuilding Company | | | | Details |
| ADSC | The International Association of Foundation Drilling | | | | Details |
| ADSL | Asymmetrical Digital Subscriber Line | | | | Details |
| ADSM | Adstar Distributed Storage Manager | | | | Details |
| adspn | adsorption | | | | Details |
| ADST | Asphaltene Dispersant Testing | | | | Details |
| ADT | Applied Drilling Technology, ADT Log | | | | Details |
| ADT | Array Dielectric Tool (SLB tool) | | | | Details |
| ADT | Abstract Data Type | | | | Details |
| ADT | actual drilling time | | | | Details |
| advan | advanced | | | | Details |
| ADWEA | Abu Dhabi Water and Electricity Authority | | | | Details |
| AED | Automated external defibrillator | | | | Details |
| AED | Arab Emirates Dirham | | | | Details |
| AF/COND | after condenser | | | | Details |
| AFD | Agence Française du Développement | | | | Details |
| AFD | authorization for definition | | | | Details |
| AFD | auxiliary flow diagram | | | | Details |
| AFESD | Arab Fund for Economic and Social Development | | | | Details |
| affd | affirmed | | | | Details |
| AFLD | Annular Fluid Loss Device (ie Halliburton's Twin Flow tool) | | | | Details |
| AFUDC | allowance for funds used during construction | | | | Details |
| AHBDF | Along Hole (Depth) Below Derrick Floor | | | | Details |
| AHBDF | Along Hole Below Derrick Floor | | | | Details |
| AHD | along hole depth | | | | Details |
| AHD | Along Hole Displacement | | | | Details |
| AHMD | along hole Measured Depth (used when doing sidetrack, sames as normal "m MD") | | | | Details |
| AI&DM | Artificial Inteligence & Data Mining | | | | Details |
| AID | Computed Process/Laser | | | | Details |
| AIDA | Asset Integrity Data Assessment System | | | | Details |
| AIDMO | Arab Industrial Development and Mining Organization | | | | Details |
| AIDP | Addendum to Initial Development Plan | | | | Details |
| ALD | Azimuthal Litho Density (logging control) | | | | Details |
| ALD | Azimuthal Litho Density | | | | Details |
| Alkyd | a resin formed by reaction of polyhydric alcohols and polybasic salts Saturated or unsaturated oils or fats are involved | | | | Details |
| aMDEA | activated methyldiethanolamine | | | | Details |
| AMDP | Aramco Mobile Drilling Platform | | | | Details |
| AND | ANDORRA | | | | Details |
| anhyd | anhydrous | | | | Details |
| Anode | the positively charged site in a cell Oxidation site The site of metal loss in corrosion | | | | Details |
| anode | Corrosion prevention device | | | | Details |
| ANSDK | Alexandria Iron and Steel Company | | | | Details |
| APCD | air pollution control device | | | | Details |
| APD | Application for Permit to Drill | | | | Details |
| APD | Application to Permit to Drill | | | | Details |
| APD | approved permit to drill | | | | Details |
| appd | approved | | | | Details |
| APWD | Annulas Pressure While Drilling | | | | Details |
| AQMD | Air Quality Management District | | | | Details |
| arnd | around | | | | Details |
| ASD | Acoustic Sand Detection | | | | Details |
| ASD | abandon-salvage deferred | | | | Details |
| ASLD | Azimuthal Stabilized Litho Density | | | | Details |
| assgd | assigned | | | | Details |
| ATD | application to drill | | | | Details |
| ATD | approved total depth | | | | Details |
| ATDNSHINC | Any Time Day/Night Sundays and Holidays INCluded | | | | Details |
| ATSDR | Agency for Tonic Substances and Disease Registry | | | | Details |
| aud | auditorium | | | | Details |
| AUD | Audio Logging | | | | Details |
| AWD | award | | | | Details |
| AZD | Azimuthal Density | | | | Details |
| AZD | Azimuth Dipfrac | | | | Details |
| B/D | barrels per day | | | | Details |
| B/dry | bailed dry | | | | Details |
| B/SD | barrels per stream(refinery) | | | | Details |
| BADEA | Arab Bank for Economic Development in Africa | | | | Details |
| BADR | Banque de l’Agriculture et du Développement Rural | | | | Details |
| BAWPD | barrels acid water per day | | | | Details |
| bbl/cd | barrels per calendar day | | | | Details |
| bbl/sd | barrels per stream day | | | | Details |
| Bcf/d | billion cubic feet per day | | | | Details |
| Bcfd | billion cubic feet per day | | | | Details |
| BCPD | Barrels Condensate Per Day | | | | Details |
| BCPD | barrels of condensate per day | | | | Details |
| BD | Blow Down | | | | Details |
| BD | BERMUDA | | | | Details |
| BD | BANGLADESH | | | | Details |
| BD | barrels of distillate | | | | Details |
| BD | blowdown | | | | Details |
| bd | board | | | | Details |
| BD | breakdown | | | | Details |
| BD | budgeted depth | | | | Details |
| Bd’A | Bois d’ Arc | | | | Details |
| BDA | Break Down Acid | | | | Details |
| BDA | breakdown acid | | | | Details |
| BDC | Backup Domain Controller | | | | Details |
| BDF | Below Derrick Floor | | | | Details |
| BDF | broke(break) down formation | | | | Details |
| bd-ft | board foot(feet) | | | | Details |
| BDI | Both Dates Inclusive | | | | Details |
| BDI | BURUNDI | | | | Details |
| BDL | Bit Data Log | | | | Details |
| BDL | below detection level | | | | Details |
| BDL | bundle | | | | Details |
| BDM | Bodendruckmessung | | | | Details |
| BD-MLW | barge deck to mean low water | | | | Details |
| BDNG | bedding | | | | Details |
| BDO | barrels diesel oil | | | | Details |
| BDOF | Bank Dhofar al-Omani al-Fransi | | | | Details |
| BDP | Break Down Pressure | | | | Details |
| BDP | breakdown pressure | | | | Details |
| BDPD | barrels of distillate per day | | | | Details |
| BDPD | barrels distillate per day | | | | Details |
| BDPH | barrels of distillate per hour | | | | Details |
| BDPH | barrels distillate per hour | | | | Details |
| BDT | blow-down test | | | | Details |
| BDZ | Bodendruckzementation | | | | Details |
| BENDS | Both Ends ( Load and discharge ports) | | | | Details |
| BfD | Basis for Design (Facility Doc) | | | | Details |
| BFPD | barrels of fluid per day | | | | Details |
| BFPD | barrels fluid per day | | | | Details |
| BGD | BANGLADESH | | | | Details |
| BHC-VD | BHC Sonic-Variable Density | | | | Details |
| BHC-VD | Variable Density Logging | | | | Details |
| BHC-WFD | Wave Form Digitizing | | | | Details |
| BID-SUM | bid summary | | | | Details |
| Big.nod. | Bigenerina nodosaria | | | | Details |
| BIVDL | BI/DK/WF/Casing Collar Locator/Gamma Ray Log | | | | Details |
| BLCPD | barrels load condensate per day | | | | Details |
| bld | bailed | | | | Details |
| bld | bleeding | | | | Details |
| BLD-FLG | BF blind flange | | | | Details |
| bldg | building | | | | Details |
| bld-gas | bleeding gas | | | | Details |
| bldg-drk | building derrick | | | | Details |
| bldg-rds | building roads | | | | Details |
| bldo | bleeding oil | | | | Details |
| bldrs | boulders | | | | Details |
| bledg | bleeding | | | | Details |
| BLKD | Bulk Density | | | | Details |
| BLND | blend(ed)(er)(ing) | | | | Details |
| BLOPD | barrels of load oil per day | | | | Details |
| BLOPD | barrels load oil per day | | | | Details |
| BLPD | Barrel Liquid Per Day | | | | Details |
| BLPD | barrels of liquid per day | | | | Details |
| BLWPD | barrels of load water per day | | | | Details |
| BLWPD | barrels load water per day | | | | Details |
| bnd | band (ed) | | | | Details |
| BNDE | Banque Nationale pour le Développement Economique | | | | Details |
| bndry | boundary | | | | Details |
| BOCD | barrels oil per calendar day | | | | Details |
| BOD | Basis Of Design | | | | Details |
| BOD | Basic Operational Data | | | | Details |
| BOD | Biochemical Oxygen Demand | | | | Details |
| BOD | Biological Oxygen Demand | | | | Details |
| Bod | Bodcaw | | | | Details |
| BOD | Biologic Oxygen Demand | | | | Details |
| BOD5 | 5-day biological oxygen demand | | | | Details |
| BODF | Below Original Drill Floor | | | | Details |
| boed | barrel(s) of oil equivalent per day | | | | Details |
| boepd | barrel(s) of oil equivalent per day | | | | Details |
| bopd | barrel(s) of oil per day | | | | Details |
| BOPD | Barrels of Oil Per Day | | | | Details |
| BOPD | barrels oil per day | | | | Details |
| BOPPD | barrels oil per producing day | | | | Details |
| bpd | barrels per day | | | | Details |
| BPLOPD | barrels of pipeline oil per day | | | | Details |
| BPSD | barrels per stream day | | | | Details |
| BPWPD | barrels per well per day | | | | Details |
| Br.ld. | Break load | | | | Details |
| BRGDS | Best ReGarDS | | | | Details |
| Brid | bridger | | | | Details |
| brkn-sd | broken sand | | | | Details |
| Bscf/d | billion standard cubic feet per day | | | | Details |
| BSPD | Barrels Steam Per Day | | | | Details |
| BSWPD | barrels of salt water per day | | | | Details |
| BSWPD | barrels salt water per day | | | | Details |
| BTDC | before top dead center | | | | Details |
| BTWLD | butt weld | | | | Details |
| BV/WLD | beveled for welding | | | | Details |
| BW/D | barrels of water per day | | | | Details |
| BWAD | Brackish Water Arrival Draft | | | | Details |
| bwd | barrels of water per day (often used in reference to oil production) | | | | Details |
| BWIPD | Barrels Water Injection Per Day | | | | Details |
| bwpd | barrels of water per day | | | | Details |
| BWPD | barrels water per day | | | | Details |
| CAD | Computer Aided Design | | | | Details |
| CAD | computer-aided design | | | | Details |
| Cadd | Caddell | | | | Details |
| CADE | Canadian Association of Drilling Engineers | | | | Details |
| CALD | Caliper interpreted from Density | | | | Details |
| CAODC | Canadian Association of Oilwell Drilling Contractors | | | | Details |
| CAODS | Canadian Association of Oilwell Drilling Contractors | | | | Details |
| CBD | Competence Based Development | | | | Details |
| CBD | Commercial Bank of Dubai | | | | Details |
| CBL-VD | Variable Density Logging | | | | Details |
| CBL-VD | Cement Bond-Variable Density Logging | | | | Details |
| CBND | Cement Bond | | | | Details |
| CCDF | Conditional Cumulative Distribution Function | | | | Details |
| CCDST | closed chamber DST | | | | 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 |
| CEDIPSA | Compania Espanola Distribuidora de Petroleos S.A. Spain | | | | Details |
| CERHYD | Centre de Recherche Pour La Valorisation des Hydrocarbures & Derives Algeria | | | | 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 |
| cfgd | cubic feet gas per day | | | | Details |
| CHD | closed hydrocarbon drain | | | | Details |
| CHDT | Cased Hole Dynamics Tester | | | | Details |
| CHDT | Cased Hole Dynamic Tester | | | | Details |
| CHDTP | Caliper HDT Playback Log | | | | Details |
| Chkbd | checkerboard | | | | Details |
| chkd | checked | | | | Details |
| CHKD | PL checkered plate | | | | 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 |
| CIED | International Center for Education and Development | | | | Details |
| CILD | Conduction Log | | | | Details |
| CLDL | Chlorije Detection | | | | Details |
| CLDL | Chloride Detection | | | | Details |
| cln(d)(g) | clean(ed)(ing) | | | | Details |
| clsd | closed | | | | Details |
| CMPD | compound | | | | Details |
| CMTD | cable mounted tension device | | | | Details |
| CN/BD | control building | | | | Details |
| CND | Compensated Neutron Density | | | | Details |
| CND | conduit | | | | Details |
| CNDL | Compensated Neutron Density | | | | Details |
| CNFDP | CNFD True Vertical Depth Playback Log | | | | Details |
| CNLFD | CNL/FDC Log | | | | Details |
| CNODC | China National Oil & Gas Exploration & Development Corp. (see CSPC) China | | | | Details |
| COBLDN | Closing Of Business LoDoN | | | | 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 |
| CoED | Chance of Economical Development | | | | Details |
| Com Den | Compensated Density | | | | Details |
| Com Den-GR | Compensated Density Gamma Ray | | | | Details |
| Con Dr. | Continuous Drift | | | | 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 |
| cont(d) | continue(ed) | | | | Details |
| contd | continued | | | | Details |
| coord | coordinates | | | | Details |
| coord | coordinate | | | | Details |
| Cor Det | Electro-Magnetic Corrosion Detector | | | | Details |
| COTD | cleaned out to total depth | | | | Details |
| cp’d | cemented through perforations | | | | Details |
| CPD | Charterers Pay Dues | | | | Details |
| CPDP | Comite Professionel du Petrole France | | | | Details |
| CQD | Customary Quick Despatch | | | | Details |
| CRBD | Coriband-Kerogen Analysis | | | | Details |
| crbd | crossbedded | | | | Details |
| Crd | cored | | | | Details |
| CRDL | cradle(s) | | | | Details |
| CSDTM | compensated spectral density log | | | | Details |
| CSID | Casing Size Internal Diameter | | | | Details |
| CTD | Coiled Tubing Drilling | | | | Details |
| ctd | coated | | | | Details |
| CTD | corrected total depth | | | | Details |
| CTDESP | coiled tubing deployed electric submersible pump | | | | Details |
| Ctnwd | Cottonwood | | | | Details |
| CTOD | crack tip opening displacement | | | | Details |
| cu yd | cubic yard | | | | Details |
| CUTTD | Cuttings Description Report | | | | Details |
| CVD | Constant Volume Depletion (an experimental method in PVT analysis) | | | | Details |
| CVD | Constant Volume Depletion | | | | Details |
| CVDC | Cost vs Depth Curve (drilling) | | | | Details |
| CWDT | Critical Wax Deposition Temp | | | | Details |
| Cy Sd | Cypress Sand | | | | Details |
| CYBD | Cyberbond Log | | | | Details |
| CYDIP | Cyberdip Log | | | | Details |
| CYDIP | Cyberdip | | | | Details |
| CYDN | Cyberdon Log | | | | Details |
| CYLDT | Litho-Density Quicklook | | | | Details |
| CYTDT | Cyberscan | | | | Details |
| CZDL | Compensated Z-Densilog | | | | Details |
| D & A | dry and abandoned | | | | Details |
| D & B | Dun & Bradstreet | | | | Details |
| D & C | drill and complete | | | | Details |
| d h | das heißt | | | | Details |
| D&A | dry and abandoned | | | | Details |
| D&A | dry & abandoned | | | | Details |
| D&C | Drilling and Completions | | | | Details |
| D&C | Drilling and Completion | | | | Details |
| D&D | Desk & Derrick | | | | Details |
| d.h. | das heißt (similar to i.e. or that is to say…) | | | | Details |
| D.I. | diesel index | | | | Details |
| D.O. | division order | | | | Details |
| D/A | Disbursement Account | | | | Details |
| D/A | Drill Ahead | | | | Details |
| d/b/a | doing business as | | | | Details |
| D/C | Drill Cement | | | | Details |
| D/D | deactivation & decommissioning | | | | Details |
| D/D | day to day | | | | Details |
| D/F | Drill Formation | | | | Details |
| D/F | dioxins and furans | | | | Details |
| D/L | density log | | | | Details |
| D/M | Demontage/Montage | | | | Details |
| D/O | division office | | | | Details |
| D/P | differential pressure | | | | Details |
| D/P | drill(ed)(ing) plug | | | | Details |
| D/S | data sheet | | | | Details |
| D/t | diameter to thickness ratio, a common comparison value in steel pipe | | | | Details |
| D/T | driller’s top | | | | Details |
| D/T | drilling tender | | | | Details |
| d-1-s | dressed one side | | | | Details |
| D-2 | Diesel No. 2 | | | | Details |
| d-2-s | dressed two sides | | | | Details |
| d-4-s | dressed four sides | | | | Details |
| DA | Data Aquisition | | | | Details |
| DA | Drill Ahead | | | | Details |
| DA | BENIN | | | | Details |
| DA | DENMARK | | | | Details |
| DA | BENIN | | | | Details |
| DA | Development Area | | | | Details |
| DA | daily allowable | | | | Details |
| DA | Dresser Atlas | | | | Details |
| DA | drift angle | | | | Details |
| DAB | Decision Advisory Board | | | | 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 |
| DAF | Delivered At Frontier | | | | Details |
| DAFW | Days Away Form Work | | | | Details |
| DAFWC | Days Away From Work Case | | | | Details |
| DAIB | daily average injection barrels | | | | Details |
| Dak | Dakota | | | | Details |
| DAL | Digital Acoustilog | | | | Details |
| Dan | Dantzler | | | | Details |
| DANA | Dana Petroleum plc UK | | | | Details |
| DANOP | Dansk Operatorselskab Denmark | | | | Details |
| DAP | Days All Purposes (Total days for loading and disch.) | | | | Details |
| DAPC | Dynamic Annular Pressure Control | | | | Details |
| DAPM | Downhole Annular Pressure Measurement | | | | Details |
| DAR | Digital Acoustic Tool | | | | Details |
| Dar | Darwin | | | | Details |
| DAR | discovery allowable requested darcy | | | | Details |
| DARC | Permeability Estimation | | | | Details |
| DARCI | Darci Log | | | | Details |
| DART | Data Acquisition, Reporting, and Transmission Tool | | | | Details |
| DART | Days Away/Restricted or Transfer Rate (see comment) | | | | Details |
| DAS | Data Acquisition System | | | | Details |
| DAT | Wellhead Housing Drill-Ahead Tool | | | | Details |
| dat | datum | | | | Details |
| DAZD | Dip and Azimuth Display | | | | Details |
| DB | Declining Balance-used for depreciation calculation | | | | Details |
| DB | Database | | | | Details |
| DB | Cement Dump Bailer | | | | Details |
| DB | dump bailer | | | | Details |
| DB | Data Bank | | | | Details |
| db | decibel | | | | Details |
| DB | diamond bit | | | | Details |
| DB | drilling break | | | | Details |
| DB | Cement Dump Bailer Service | | | | Details |
| DB&B | double block and bleed | | | | Details |
| DBA | Database Administrator | | | | Details |
| dba | doing business as | | | | Details |
| DBA | depth bracket allowable | | | | Details |
| DBB | double block and bleed | | | | Details |
| DBE | Detailed Budget Exercise | | | | Details |
| Dbl | Double | | | | Details |
| DBL SKIN | DouBLe SKINned | | | | Details |
| DBMS | Database Management System | | | | Details |
| DBO | dark brown oil | | | | Details |
| DBOS | dark brown oil stains | | | | Details |
| DBP | Dynamic Back Pressure | | | | Details |
| DBSB | double pole single base(switch) | | | | 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 |
| DD | Directional Driller or Directional Drilling | | | | Details |
| DD | Directional Drilling | | | | Details |
| DD | Depth Determination | | | | Details |
| DD | draw down | | | | Details |
| DD | drill (ed) deeper | | | | Details |
| DD | Development deepening | | | | Details |
| dd | dead | | | | Details |
| DD | degree day | | | | Details |
| DD | deviation degrees | | | | Details |
| DD | drilling deeper | | | | Details |
| DD | dyna-drilling | | | | Details |
| DD | Depth Determinations | | | | Details |
| DD | Depth Determination Log | | | | Details |
| DD | Depth Determination | | | | Details |
| DD&A | depletion depreciation and amortization | | | | Details |
| d-d-1-s-1-e | dressed dimension one side and one edge | | | | Details |
| d-d-4-s | dressed dimension four side | | | | Details |
| DDB | Double Declining Balance (2nd Order Depreciation Curve) | | | | Details |
| DDB | drive down bailer | | | | Details |
| DDBHC | DDBHC Waveform Log | | | | Details |
| DDCV | deep draft caisson vessel | | | | Details |
| DDD | dry desiccant dehydrator | | | | Details |
| DDET | Depth Determination Log | | | | Details |
| DDGAS | South Transdanubian Gas Co. Germany | | | | Details |
| DDI | Direction Difficulty Index | | | | Details |
| DDL | Daily Drilling Log | | | | Details |
| DDL | Dual Detector Log | | | | Details |
| DDM | Derrick Drilling Machine (a.k.a. Top Drive) | | | | Details |
| DDM | Derrick Drilling Machine | | | | Details |
| DDM | DDBHC Multi-Shot Processing | | | | Details |
| DDN | Dual Detector Neutron | | | | Details |
| DDNL | Dual Det. Neutron Life Log | | | | Details |
| DDP/(U) | Delivered Duty Paid (Unpaid) | | | | Details |
| DDPT | Drill Data Plot Log | | | | Details |
| DDR | Daily Drilling Report | | | | Details |
| DDR | Double Data Rate | | | | Details |
| DDS | Drilling Dynamics Sensor | | | | Details |
| DDS | DDBHC Slowness Waveform Analysis | | | | Details |
| DDT | dichloro diphenyltrichloroethane | | | | Details |
| DDV | Downhole Deployable Valve | | | | Details |
| DDWT | Deliberately Disturbed Well Test | | | | Details |
| DE | Decision Executive | | | | Details |
| DE | Drilling Engineer | | | | Details |
| DE | Diatomaceous Earth | | | | Details |
| DE | DENMARK | | | | Details |
| DE | GERMANY | | | | Details |
| DE | Delaware | | | | Details |
| DE | double end | | | | Details |
| DEA | Drilling Engineering Association | | | | Details |
| DEA | diethanolamine | | | | Details |
| DEA | unit diethanolamine unit | | | | Details |
| DEA | Deutsche Erdol Aktiengesselschaft (see REW-DEA) Germany | | | | Details |
| Deadw | Deadwood | | | | Details |
| deaer | deaerator | | | | Details |
| deasph | deasphalting | | | | Details |
| debutzr | debutanizer | | | | 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 |
| DeDet | Depth Setermination | | | | Details |
| deethzr | deethanizer | | | | Details |
| defl | deflection | | | | Details |
| DEFSU | Definitive Survey Report | | | | Details |
| DEFT | Digital Entry Fluid Imaging Tool in PLT/PSP Schlumberger (Water hold up tool) | | | | Details |
| deg | degree (s) | | | | Details |
| Deg | Degonia | | | | Details |
| deg | degree(s) | | | | Details |
| degc | Degree Celcius | | | | Details |
| DEGF | Degree Farenheight | | | | Details |
| DEIb | Diamond Enhanced Insert bit | | | | Details |
| deisobut | deisobutanizer | | | | Details |
| Del R | Del Rio | | | | Details |
| DEL2 | Dielectric Log - 200 Mhz | | | | Details |
| DEL2 | Dielectric Log- 200 MHz | | | | Details |
| DEL4 | Dielectric Log - 47 Mhz | | | | Details |
| DEL4 | Dielectric Log – 47 MHz | | | | Details |
| Dela | Delaware | | | | Details |
| DELEK | Delek the Israel Fuel Corp. Ltd. Israel | | | | Details |
| DELTA | Delta- Tlog | | | | Details |
| delv | delivery(ed)(ability) | | | | Details |
| delv | pt delivery point | | | | Details |
| DELY | DELiverY | | | | Details |
| DEM | Drilling Engineering Manual | | | | Details |
| DEM | DEMurrage | | | | Details |
| DEM | Digital Elevation Model | | | | Details |
| DEMINEX | DEMINEX GmbH Germany | | | | Details |
| demur | demurrage | | | | Details |
| DEN | Density Log | | | | Details |
| Den | Density | | | | Details |
| dend | dendrite(ic) | | | | Details |
| Den-G | Density Gamma Ray | | | | Details |
| DENL | Density | | | | Details |
| DENL | Density Log | | | | Details |
| DENR | Radioactive fluid density tool (in PLT tool) | | | | Details |
| Deoco | Deminex Egypt Company | | | | Details |
| DEP | Public Petroleum Corp. S.A. Greece | | | | Details |
| DEPA | Greek State Natural Gas Company Greece | | | | Details |
| DEPAN | Deposit Analysis Report | | | | Details |
| DEPC | Depth Control Log | | | | Details |
| depl | depletion | | | | Details |
| Depr | depreciation | | | | Details |
| deprop | depropanizer | | | | Details |
| dept | department | | | | Details |
| DEQ | Delivered Ex Quay | | | | Details |
| DERPROSA | Derivados del Propileno S.A. Spain | | | | Details |
| DES | Derrick Equipment Set | | | | Details |
| DES | Delivered Ex Ship | | | | Details |
| Des | Crk Desert Creek | | | | Details |
| Des M | Des Moines | | | | Details |
| desalt | deslater | | | | Details |
| desc | description | | | | Details |
| DESFL | Deep Induction SFL Log | | | | Details |
| desorb | desorbent | | | | Details |
| DESP | DESPatch | | | | Details |
| desulf | desulfurizer | | | | Details |
| det | detail(s) | | | | Details |
| det | detector | | | | Details |
| deterg | detergent | | | | Details |
| detr | detrital | | | | Details |
| DEU | GERMANY | | | | Details |
| DEUDAN | Deutsche/Danische Erdgastransport GmbH Germany/Denmark | | | | Details |
| DEUTAG | Deutsche Tiefbohr-AG Germany | | | | Details |
| DEV | Development Well, Lahee classification | | | | Details |
| dev | deviation | | | | Details |
| dev | deviate, deviation | | | | Details |
| Dev | Devonian | | | | Details |
| devel | develop (ed) (ment) | | | | Details |
| devel | develop(ed)(ment) | | | | Details |
| DEVLG | Deviation Log | | | | Details |
| Devt | Development | | | | Details |
| dewax | dewaxing | | | | Details |
| DEXP | D-Exponent Log | | | | Details |
| Dext | Dexter | | | | Details |
| DF | Drilling Fluid | | | | Details |
| DF | Derrick Floor | | | | Details |
| DF | Design Factor | | | | Details |
| DF | diesel fuel | | | | Details |
| DF | Drill Floor | | | | Details |
| DFA | Downhole Fluid Analysis | | | | Details |
| DFA | Dynamic Flow Analysis | | | | Details |
| DFE | Drill Floor Elevation | | | | Details |
| DFE (ACD) | Drill Floor Elevation (Admiralty Chart Datum) | | | | Details |
| DFFO | Diagnostic fracture fall-off (also called DFIT) | | | | Details |
| DFIT | Diagnostic Fracture Injection Test | | | | Details |
| DFM | Diverter Fluid Manifold | | | | Details |
| DFM | Direction of Fluid Motion | | | | Details |
| DFN | Discrete Fracture Network | | | | Details |
| DFO | datum faulted out | | | | Details |
| DFP | deferred production | | | | Details |
| DFP | date of first production | | | | Details |
| DFR | Drilling Factual Report | | | | Details |
| DFS | Days From Spud | | | | Details |
| DFS | Drilling Fluid Superintendent | | | | Details |
| DFT | Dynamic Formation Tester | | | | Details |
| DFT | dry film thickness | | | | Details |
| DFW | Development Framework | | | | Details |
| DG | Decision Gate | | | | Details |
| DG | Development gas | | | | Details |
| dg | decigram | | | | Details |
| DG | development gas well | | | | Details |
| DG | draft gauge | | | | Details |
| DG | dry gas | | | | Details |
| DGA | diglycolamine | | | | Details |
| DGAS | Deep Gas Conference and Exhibition | | | | Details |
| DGCA | Directorate General of Civil Aviation | | | | Details |
| DGFS | Dark Grey Fissile Shale | | | | Details |
| DGH | Directorate General of Hydrocarbon | | | | Details |
| DGLV | dummy gas lift valve | | | | Details |
| DGMK | German Society for Petroleum and Coal Science and Technology | | | | Details |
| DGMK | German Society for Petroleum & Coal Science & Technology (Deutsche Wissenschaftliche Gesellschaft fur Erdol, Erdgas und Kohle e.V.) Germany | | | | Details |
| DGP | dynamic geohistory plot (3D technique) | | | | Details |
| DGP | Double Grip Packer | | | | Details |
| DG-Packer | Double Grip Packer | | | | Details |
| DGPC | Directorate General of Petroleum Concessions | | | | Details |
| DGR | Dual Gamma Ray | | | | Details |
| DGR | Daily Geological Report | | | | Details |
| DGR | Dangerous Goods Regulations | | | | Details |
| DGR | Digital Gamma Ray Log | | | | Details |
| DGS | Dhahran Geological Society | | | | Details |
| Dgt Tp Rec | Digital Tape Recording | | | | Details |
| DGTL | digital | | | | Details |
| DH | Drilling History | | | | Details |
| dh | das heißt | | | | Details |
| DH | development well, helium | | | | Details |
| DH | double hub | | | | 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 |
| DHD | downhole diagnostics | | | | Details |
| DHDATSBE | Despatch Half Demurrage on All Time Saved Both Ends | | | | Details |
| DHDD | dry hole drilled deeper | | | | Details |
| DHDS | diesel hydrogen desulfurization | | | | Details |
| DHDWTSBE | Detpatch Half Demurrage on Working Time Saved Both Ends | | | | Details |
| DHE | Direct Hire Employment (Indefinite contract) | | | | Details |
| DHFC | Down Hole Flow Control | | | | Details |
| DHFC | downhole flow control | | | | Details |
| DHG | Down Hole Gauge | | | | Details |
| DHHN | Deutsches Haupthöhennetz | | | | Details |
| DHI | Direct Hydrocarbon Imaging | | | | Details |
| DHI | Down Hole Injection | | | | Details |
| DHI | Down Hole Interface | | | | Details |
| DHI | Direct Hydrocarbon Indicators | | | | Details |
| DHIV | DownHole Isolation Valve | | | | Details |
| DHM | Drilling Hazard Mitigation | | | | Details |
| DHM | Down Hole Motor | | | | Details |
| DHM | dry-hole money | | | | Details |
| DHP | Down Hole Pump | | | | Details |
| DHPG | downhole permanent gauge | | | | Details |
| DHPT | Down Hole Pressure Temperature | | | | Details |
| DHPTT | Downhole Pressure/Temperature Transducer | | | | Details |
| DHR | dry hole reentered | | | | Details |
| DHSIT | Down Hole Shut In Tool (for pressure surveys) | | | | Details |
| DHSV | Downhole Safety Valve | | | | Details |
| DHT | Down Hole Tools | | | | Details |
| DHTV | may be either downhole TV camera or a televiewer (a sonic caliper tool) | | | | Details |
| DHV | Digital Hydraulic Valve | | | | Details |
| DHV | downhole video | | | | Details |
| DHV | deemed heating value | | | | Details |
| DHVTM | Down Hole Video, Inc | | | | Details |
| DI | Difficulty Index | | | | Details |
| DI | Dual Induction | | | | Details |
| dia | diameter | | | | Details |
| diag | diagonal | | | | Details |
| diag | diagram | | | | Details |
| DIAH | Down In A hole | | | | Details |
| DIAL | Differential Absorption Light Detection and Ranging | | | | Details |
| DIAL | Dia-Log | | | | Details |
| diaph | diaphragm | | | | Details |
| diat | diatomite | | | | Details |
| DIB | Dubai Islamic Bank | | | | Details |
| DIBHC | DIS BHC Log | | | | Details |
| dichlor | dichloride | | | | Details |
| DICOL | Distribuidora de Combustiveis e Lubrificantes da Guinea Bissau Lda. Portugal | | | | Details |
| DID | Detonation Interruption Device | | | | Details |
| die | Jaws of rig tongs to hold tight the pipes | | | | Details |
| DIE | Dielectric Analysis | | | | Details |
| DIEGR | Dielectric Gamma Ray Log | | | | Details |
| DIEL | Dielectric Log | | | | Details |
| Dies | the inserts on the rig tong to create grip on pipe (wrongly Dize) | | | | Details |
| diethyl | diethylene | | | | Details |
| DIF | drill in fluids | | | | Details |
| DIF | Drill-In Fluid | | | | Details |
| DIF | drill in fluid | | | | Details |
| Diff | Difference | | | | Details |
| diff | different(ial)(ence) | | | | Details |
| DIFL | Dual Induction Focused Log | | | | Details |
| DIFL | dual injection focus log | | | | Details |
| DIFL | Dual Induction-Focused Log | | | | Details |
| DIFL/GR | Dual Induction Focused Log Gamma Ray | | | | Details |
| DIGANAMEX | Distribuidora de Gas Natural del Estado de Mexico S.A. Mexico | | | | Details |
| DIGAQRO | Distribuidora de Gas de Queretaro S.A. Mexico | | | | Details |
| DIGL | Dual Induction Gamma Log | | | | Details |
| DIL | Dual Induction Log | | | | Details |
| DIL | Dual Induction Laterolog | | | | Details |
| DIL | Dual Induction-Laterologging | | | | Details |
| DIL | Dual Induction SFL Log | | | | Details |
| DIL | Dual Induction Dual Induction Log | | | | Details |
| DILB | Dual Induction BHC Log | | | | Details |
| DILL | Dual Induction Laterolog | | | | Details |
| DILL | Dual Induction Lateral/Dual Induction Focus | | | | Details |
| DILL | Dual Induction Lateral | | | | Details |
| DILLS | Dual Induction Log-LLS | | | | Details |
| DILSL | Dual Induction Log-SLS | | | | Details |
| dilut | diluted | | | | Details |
| DIM | Directional Inertia Mechanism | | | | Details |
| DIM | Demontage/Montage | | | | Details |
| dim | dimension | | | | Details |
| dim | diminish(ing) | | | | Details |
| DIMAH | Direction des Matieres Premiers et des Hydrocarbures France | | | | Details |
| DIMS | Drilling Information Management System | | | | Details |
| DIN | Deutsche Industrie Norm connector | | | | Details |
| Din | Dinwoody | | | | Details |
| DINT | Dip Interpretation | | | | Details |
| DIO | Days Invoice Outstanding | | | | Details |
| DIOCO | DEMINEX Egypt Co. Egypt | | | | Details |
| DIP | Dipmeter Log | | | | Details |
| DIP | High Resolution 4-Arm Diplog | | | | Details |
| DIP | 4 Arm High Resolution Diplog | | | | Details |
| DIP | Dual Induction-Focused Log High Resolution (4-Arm) Diplog® | | | | Details |
| Dip Rec | Dip Log Digital Log Dgt | | | | Details |
| DIPA | diisopropanolamine | | | | Details |
| DIPAR | Dipole Acoustic Report | | | | Details |
| DIPBH | Dipmeter Borehole Log | | | | Details |
| DIPC | Basic Diplog Computation | | | | Details |
| DIPFT | Dipmeter Fast Log | | | | Details |
| DIPLP | Dip Lithology Pressure Log | | | | Details |
| DIPM | Dip Meter | | | | Details |
| DIPM | Dipmeter | | | | Details |
| DIPRE | Dipmeter Report | | | | Details |
| DIPRM | Dip Removal Log | | | | Details |
| DIPSA | Dipmeter Soda Log | | | | Details |
| DIPSK | Dipmeter Stick Log | | | | Details |
| DIR | Directional | | | | Details |
| DIR | Directive | | | | Details |
| dir | direct(tion)(tor) | | | | Details |
| dir | drlg directional drilling | | | | Details |
| dir | sur directional survey | | | | Details |
| DIR | Directional Survey | | | | Details |
| DIRS | Directional Survey Log | | | | Details |
| DIRS | Directional survey | | | | Details |
| DIRSU | Directional Survey Report | | | | Details |
| DIS | DIS-SLS Log | | | | 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 |
| DISF | Dual Induction - Spherically Focused | | | | Details |
| DISF | Dual Induction Spherically Focused | | | | Details |
| DISFL | DISFL DBHC Gamma Ray Log | | | | Details |
| dism | disseminated | | | | Details |
| disman | dismantle | | | | Details |
| DISO | Dual Induction Sonic Log | | | | Details |
| DISPESA | Compania Distribuidora de Productos Petroliferos S.A. Spain | | | | Details |
| displ | displaced, displacement | | | | Details |
| dist | distance | | | | Details |
| dist | distillate, distillation | | | | Details |
| dist | district | | | | Details |
| distr | distribute(ed)(ing)(ion) | | | | Details |
| DIT | Dual Induction Tool | | | | Details |
| DIT | Dual Induction | | | | Details |
| DIT | Dual Induction SFL Log | | | | Details |
| DIT | Induction-Spherically Focused Log | | | | Details |
| DITAS | TPAO Marine Tanker Subsidiary Turkey | | | | Details |
| DIT-E | Phasor Induction Log | | | | Details |
| DITH | Down In The Hole | | | | Details |
| DIV | Downhole Isolation Valve | | | | Details |
| DIV | Diverses | | | | Details |
| div | division | | | | Details |
| DJ | DJIBOUTI | | | | Details |
| DJI | DJIBOUTI | | | | Details |
| DK | DecK | | | | Details |
| DK | DENMARK | | | | Details |
| dk | dark | | | | Details |
| Dk | Crk Duck Creek | | | | Details |
| DKBR | Dresdner Kleinwort Benson Research | | | | Details |
| DL | Development Licence (United Kingdom), a type of onshore licence issued before 1996 | | | | Details |
| DL | Differential Liberation | | | | Details |
| DL | Drillers Log | | | | Details |
| dl | deciliter | | | | Details |
| DL | drilling line | | | | Details |
| DLA | Development Lease Area | | | | Details |
| DLC | dual lower tubing | | | | Details |
| DLE | Differential Liberation Equation (see comment - type of PVT analysis) | | | | Details |
| DLIST | Dip List Log | | | | Details |
| DLL | Dual Laterolog | | | | Details |
| DLL | Dynamic Link Library | | | | Details |
| DLL | Dual Laterolog (Simultaneous) | | | | Details |
| DLL | detection level limited | | | | Details |
| DLL | Dual Laterlog | | | | Details |
| DLL/MSFL | Dual Laterolog/Microspherically Focused | | | | Details |
| DLLT | Dual Laterolog | | | | Details |
| DLOSP | Dropping Last Outwards Sea Pilot (Norway) | | | | Details |
| dlr | dealer | | | | Details |
| DLS | Dog-Leg Severity (directional drilling) | | | | Details |
| DLS | Dog Leg Severity | | | | Details |
| DLS | dogleg severity | | | | Details |
| DLT | Dual Laterolog | | | | Details |
| DLT | A kind of hydraulic set packer from Weatherford | | | | Details |
| DLT | dual lower tubing | | | | Details |
| DM | Drilling Manager | | | | Details |
| DM | dry mate | | | | Details |
| DM | DOMINICA | | | | Details |
| DM | Dip Meter | | | | Details |
| DM | datum | | | | Details |
| dm | decimeter | | | | Details |
| DM | demand meter | | | | Details |
| DM | dipmeter | | | | Details |
| DM | drilling mud | | | | Details |
| dm | cubic decimeter | | | | Details |
| dm/s | cubic decimeter per second | | | | Details |
| DMA | Dead Man Anchor | | | | Details |
| DMA | DOMINICA | | | | Details |
| DMAG | Digital Magnelog | | | | Details |
| DMD | driller’s measured depth | | | | Details |
| DMF | Downhole Motor Failure | | | | Details |
| DMGL | Digital Magneline | | | | Details |
| DMGM | Direction Nationale de la Geologie et des Mines Mali | | | | Details |
| dml | demolition | | | | Details |
| DMO | Dip Move Out | | | | Details |
| DMOR | Daily Moving Report | | | | Details |
| DMPD | dumped | | | | Details |
| dmpr | damper | | | | Details |
| DMR | Daily Moving Report | | | | Details |
| DMS | dimethyl sulfide | | | | Details |
| DMUR | drilling, milling and under-reaming | | | | Details |
| DN | Delivery Note | | | | Details |
| DN | diamètre nominal/nominal diameter/Durchmesser nach Norm (europe standerd for pipes) | | | | Details |
| dn | down | | | | Details |
| DNHO | Downhole Logging | | | | Details |
| DNK | DENMARK | | | | Details |
| DNL | dual porosity CNL | | | | Details |
| DNL | Dual-Energy Neutron Log | | | | Details |
| DNL | Dual Porosity Compensated Neutron | | | | Details |
| DNO | Det Norske Oljeselskap A/S Norway | | | | Details |
| DNR | Department of Natural Resources | | | | Details |
| DNS | Domain Name System | | | | Details |
| Dns | Dense | | | | Details |
| DNSCM | Density Neutron Standoff Caliper MultiLink | | | | Details |
| DNV | Det Norske Veritas | | | | Details |
| DNV | Det Norske Veritas Norway | | | | Details |
| DO | Depth offset (SLB wireline correlation) | | | | Details |
| DO | Diesel Oil | | | | Details |
| DO | Decision Owner | | | | Details |
| DO | DOMINICA | | | | Details |
| DO | DOMINICAN REPUBLIC | | | | Details |
| DO | drill (ed) out | | | | Details |
| DO | Development oil | | | | Details |
| DO | development oil well | | | | Details |
| do | ditto | | | | Details |
| DO | drill(ed)(ing) out | | | | Details |
| DOA | delegation of authority | | | | Details |
| DOAMS | Digital OilField and Asset Management System | | | | Details |
| DOB | Date Of Birth | | | | Details |
| DOBLDG | dock operating building | | | | 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 |
| DOD | Dead Oil Displacement (Subsea) | | | | Details |
| DOD | drilled-out depth | | | | Details |
| DODC | Development Operations Coordination Document (US Govt GoM Well Permit applic form) | | | | Details |
| DODI | Diamond Offshore Drilling company | | | | Details |
| DOE | Depends On Experience | | | | Details |
| DOE | Department of Energy, United States | | | | Details |
| DOE | Date of Engagement | | | | Details |
| DOE | US Department Of Energy | | | | Details |
| DOE | U.S. Department of Energy | | | | Details |
| DOE | Department of Energy | | | | Details |
| DOFF | Digital Oil Field of the Future | | | | Details |
| DOG | Dogleg | | | | Details |
| DOI | Digital Object Identifier | | | | Details |
| DOI | Department of the Interior | | | | Details |
| DOI | U.S. Department of the Interior | | | | Details |
| DOL | Dolomite | | | | Details |
| dolo | dolomite | | | | Details |
| dolo | dolomite(ic) | | | | Details |
| DOLSP | Dropping Off Last Sea Pilot ( Norway) | | | | Details |
| dolst | dolstone | | | | Details |
| DOM | Depth Orientation Marker (weatherford tool, see comment) | | | | Details |
| DOM | DOMINICAN REPUBLIC | | | | Details |
| dom | domestic | | | | Details |
| dom | AL domestic airline | | | | Details |
| DOM | WTR domestic water | | | | Details |
| DOME | Dome | | | | Details |
| DONG | Dansk Olie og Naturgas A/S Denmark | | | | Details |
| DOP | Dropping Outward Pilot | | | | Details |
| DOP | drilled out plug | | | | Details |
| DOP | drilled-out plug | | | | Details |
| dope | Pipe coating | | | | Details |
| DOR | Daily Operations Report | | | | Details |
| Dorn | H Dornick Hills | | | | Details |
| DOT | U.S. Department of Transportation (DOT transporatable - approval needed for transport) | | | | Details |
| DOT | Department Of Transport | | | | Details |
| DOT | U.S. Department of Transportation | | | | Details |
| DOT | Department of Transportation | | | | Details |
| DOT-E | Designation Of Material Exempt from Department of Transportation regulations | | | | Details |
| Doth | Dothan | | | | Details |
| Doug | Douglas | | | | Details |
| DOW | Days On Well (number of days passed dealing with operations) | | | | Details |
| DOWRE | Downhole Report | | | | Details |
| doz | dozen | | | | Details |
| DP | Development Planner | | | | Details |
| DP | Deep Penetrator (related to charges & guns) | | | | Details |
| DP | Drill Plug | | | | Details |
| DP | Drill Pipe (Bohrgestange) | | | | Details |
| DP | Dual Packer (MDT tool) | | | | Details |
| dP | Differential Pressure | | | | Details |
| DP | Dynamic Positioning | | | | Details |
| DP | Discharge Pressure (of ESP pump measured down hole) | | | | Details |
| DP | Drill Pipe | | | | Details |
| DP | Dual producer | | | | Details |
| DP | Drill Pipe (Bohrgestänge) | | | | Details |
| DP | Deep Penetration | | | | Details |
| dp | decimal place (3dp like 0.000) | | | | Details |
| DP | data processing | | | | Details |
| DP | dewpoint | | | | Details |
| DP | double pipe | | | | Details |
| DP | drillpipe | | | | Details |
| DP SW | double pole switch | | | | Details |
| DPC | Dew Point Control | | | | Details |
| DPC | Dubai Petroleum Company | | | | Details |
| DPC | Datum Plane of Computation | | | | Details |
| DPC SCE | Perforating-Ceramic | | | | Details |
| DPDB | double pole double base(switch) | | | | Details |
| DPDT | SW double pole double throw switch | | | | Details |
| DPDV | Dynamically Positioned Drilling Vessel | | | | Details |
| DPDV | Dynamically-Positioned Drilling Vessel | | | | Details |
| DPDV | Dynamically Positioned Drilling | | | | Details |
| DPF | Differential Pressure Firing Head | | | | Details |
| dpg | deepening | | | | Details |
| DPIL | Dual Phase Induction Log | | | | Details |
| DPL | Dual Propagation Log | | | | Details |
| DPL | Drill Pipe Electric Log | | | | Details |
| DPL | Deep Propagation Log | | | | Details |
| DPLD | Differential Pressure Levitated Device (or Vehicle) | | | | Details |
| DPM | Drill Pipe Measurement | | | | Details |
| DPM | Dynamic Pressure Module (Schlumberger pressure while drilling tool) | | | | Details |
| DPM | Dynamic Pressure Module | | | | Details |
| DPM | drillpipe measurement | | | | Details |
| dpn | deepen | | | | Details |
| DPR | Daily Production Report | | | | Details |
| DPRES | Dual Propagation Resistivity Log | | | | Details |
| DPRT | Deep Propagation Resistivity | | | | Details |
| DPST | SW double pole single throw switch | | | | Details |
| DPT | Deep Propagation Tool | | | | Details |
| DPT | DePTh | | | | Details |
| DPT | Deeper Pool Test, Lahee classification | | | | Details |
| DPT | deep propagation log | | | | Details |
| DPT | deep pool test | | | | Details |
| dpt | rec depth recorder | | | | Details |
| DPTA | diaminopropanoltetraacetic acid, a calcium scale remover and solvent | | | | Details |
| DPU | downhole power unit | | | | Details |
| DPU | drill pipe unloaded | | | | Details |
| DPU | drillpipe unloaded | | | | Details |
| DQ | JARVIS ISLAND | | | | Details |
| DQLC | Dipmeter Quality Control Log | | | | Details |
| DQQ | JARVIS ISLAND | | | | Details |
| DR | Dummy Run Log | | | | Details |
| DR | Drilling Report | | | | Details |
| DR | Düsenrohr | | | | Details |
| DR | Dimention Ratio | | | | Details |
| DR | Decision reviewers | | | | Details |
| DR | Disaster Recovery | | | | Details |
| DR | DOMINICAN REPUBLIC | | | | Details |
| DR | Devel opment Redrill | | | | Details |
| DR | Directional Survey | | | | Details |
| DR | Drift | | | | Details |
| DR | development redrill(sidetrack) | | | | Details |
| dr | drain | | | | Details |
| dr | drive | | | | Details |
| dr | drum | | | | Details |
| dr | druse | | | | Details |
| Dr Crk | Dry Creek | | | | Details |
| DRAM | Dynamic Random Access Memory | | | | Details |
| DRAPR | Delaware River Area Petroleum Refineries | | | | Details |
| DRB | Decision Review Board | | | | Details |
| DRB | Dual Receiver Bond Log | | | | Details |
| DRBA | Delaware River Basin Authority | | | | Details |
| DrehT | Drehtisch | | | | Details |
| DrehT" | Drehtisch | | | | Details |
| dresser | Mechanical coupling used to join joints or lengths or pipe rather than threading or welding | | | | Details |
| DRGL | drilling | | | | Details |
| DRI | Drill (kick, H2S) | | | | Details |
| DRI | Drift Log | | | | Details |
| DRI | Dual Resistivity Induction Log | | | | Details |
| drk | derrick | | | | Details |
| DRL | Drilling Run | | | | Details |
| DRL | double random lengths | | | | Details |
| drl | drill | | | | Details |
| DRLCT | Drilling Chart | | | | Details |
| drld | drilled | | | | Details |
| drlg | drilling | | | | Details |
| DRLOG | Drilling Log | | | | Details |
| DRLPR | Drilling Proposal/Prog. Report | | | | Details |
| drlr | driller | | | | Details |
| DRM | Digital Rights Management | | | | Details |
| DRM | drum | | | | Details |
| drng | drainage | | | | Details |
| DRODB | drilling, recompletion and repair data base | | | | Details |
| dropd | dropped | | | | Details |
| DRPG | Drilling Program Report | | | | Details |
| DRPRS | Drilling Pressure | | | | Details |
| DRREP | Drilling Report | | | | Details |
| DRS | Digital Recording Sampler (SLB) | | | | Details |
| drsy | drusy | | | | Details |
| DRV(R) | drive(ing)(er) | | | | Details |
| DRW | Drawworks | | | | Details |
| DRY | Dry | | | | Details |
| dry | drier, drying | | | | Details |
| DRYRE | Drying Report | | | | Details |
| DS | Downstream | | | | Details |
| DS | Dynamic Simulation | | | | Details |
| DS | Drill String | | | | Details |
| DS | Deviation Survey, (also as Directional System) | | | | Details |
| DS | directional survey | | | | Details |
| DS | drill site | | | | Details |
| ds | dense | | | | Details |
| DS | drillsite | | | | Details |
| DS | drillstem | | | | Details |
| DSA | Double Stud Adaptor | | | | Details |
| DSA | Downhole Seismic Array | | | | Details |
| DSA-A | Downhole Seismic Array | | | | Details |
| DSBV | Dual Shut Ball Valve | | | | 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 |
| DSE | Driling Specific Energy | | | | Details |
| DSF | Drill String Failure | | | | Details |
| DSF | drillsite facility | | | | Details |
| DSFR | Developed Scope For Recovery | | | | Details |
| dsgn | design | | | | Details |
| DSI | Dipole Shear Sonic Imager | | | | Details |
| DSI | Drilling Superintendent | | | | Details |
| DSI | Dipole Shear Imager | | | | Details |
| DSI | Discrete Smooth Interpolation | | | | Details |
| DSI | dipole sonic | | | | Details |
| DSI | drilling suspended indefinitely | | | | Details |
| DSL | Digital Slick Line (new slick line by SLB can be used insteade of W/L) | | | | Details |
| DSL | diesel | | | | Details |
| DSL | Dual Spacing Log | | | | Details |
| dsl | diesel(oil) | | | | Details |
| DSL | Dig ital Spectralog | | | | Details |
| DSLT | Digitizing Sonic Logging | | | | Details |
| dsmt | dismantle(ing) | | | | Details |
| DSN | Dual Spaced Neutron | | | | Details |
| DSO | Days Sale Outstanding | | | | Details |
| DSO | dead oil show | | | | Details |
| DSP | Digital Signal Processor | | | | Details |
| DSPT | Cross Plots Log | | | | Details |
| DSS | days since spudded | | | | Details |
| DSST | Dipole Shear Sonic Imager | | | | Details |
| DST | Drill Stem Test | | | | Details |
| DST | Dual Laterolog with SRT | | | | Details |
| DST | Dichtstück | | | | Details |
| DST | Daylight Saving Time | | | | Details |
| DST | Drill Stem Testing | | | | Details |
| DST | drillstem test | | | | Details |
| DST(Strd) | drillstem test with straddle packers | | | | Details |
| DSTG | DSTG Log | | | | Details |
| DSTL | Drill Stem Test Log | | | | Details |
| dstl | distillate | | | | Details |
| dstn | destination | | | | Details |
| DSTND | Dual Space Thermal Neutron Density Log | | | | Details |
| DSTPB | Drill Stem Test True Vertical Depth Playback Log | | | | Details |
| DSTR | Drill Stem Test Report | | | | Details |
| DSTRE | Drill Stem Test Report | | | | Details |
| DSTSM | Drill Stem Test Summary Report | | | | Details |
| DSTW | Drill Stem Test Job Report/Works | | | | Details |
| DSU | development well, sulfur | | | | Details |
| DSUPHTR | desuperheater | | | | Details |
| DSV | Drilling Supervisor( Day) | | | | Details |
| DSV | Diving Support Vessel | | | | Details |
| DSV | Downhole Safety Valve | | | | Details |
| DSV | Diving System | | | | Details |
| DSV | Diving Support Vessel (offshore) | | | | Details |
| DSV | down hole safety valve | | | | Details |
| DT | Drill Tubing | | | | Details |
| DT | sonic transit Time | | | | Details |
| DT | Downtime | | | | Details |
| DT | downthrown | | | | Details |
| DT | drilling time | | | | Details |
| DTA | Decision Tree Analysis | | | | Details |
| DTA | Drehtischantrieb | Rotary table | | | Details |
| DTC | Delta T Compressional (log). | | | | Details |
| DTC | Doha Training Center (Schlumberger's base in Doha) | | | | Details |
| DTCO | Sonic Compressional | | | | Details |
| DTD | Tension Compression | | | | Details |
| DTD | driller's total depth | | | | Details |
| DTD | driller’s total depth | | | | Details |
| DTF | Downhole Tool Failure | | | | Details |
| DTF | Dynamic Testing Facility | | | | Details |
| DTH | decatherm | | | | Details |
| DTI | Department of Trade and Industry (United Kingdom) (obsolete; superseded by dBERR, which was then superseded by DECC) | | | | Details |
| DTI | Department of Trade & Industry UK | | | | Details |
| DtL | Drilling The Limit | | | | Details |
| DTPB | CNT True Vertical Depth Playback Log | | | | Details |
| DTR | Days On Job Transfer Or Restriction | | | | Details |
| dtr | detrital | | | | Details |
| DTRV | Drop-Bar-Triggered Surge Valve (also production valve - Schlumberger) | | | | Details |
| DTS | Distributed Temperature Sensor (Smart completion) | | | | Details |
| DTS | Distributed Temperature Sensor | | | | Details |
| DTS | distributed temperature sensor or survey | | | | Details |
| DTSM | Sonic Shear | | | | Details |
| DTST | Sonic Stoneley | | | | Details |
| DTT | Depth To Time | | | | Details |
| DTW | dealer tank wagon | | | | Details |
| Dubal | Dubai Aluminium Company | | | | Details |
| DUC | dual upper casing | | | | Details |
| DUC | Dansk Underground Consortium Denmark | | | | Details |
| Dugas | Dubai Natural Gas Company | | | | Details |
| dull | dull | | | | Details |
| Dup | Duperow | | | | Details |
| dup | duplicate | | | | Details |
| DUPETCO | Dubai Petroleum Co. Dubai | | | | Details |
| DUR | Developed Ultimate Recovery | | | | Details |
| DUR | Duration | | | | Details |
| DUSD | Dual Sand | | | | Details |
| DUT | dual upper tubing | | | | Details |
| Dutch | Dutcher | | | | Details |
| DV | Differential Vaporization | | | | Details |
| DV | differential valve(cementing) | | | | Details |
| DVD-R | Digital Versatile Disc Recordable | | | | Details |
| DVL | develop | | | | Details |
| DVL1 | Digital Vertiline 4-1/2 in. (114mm) | | | | Details |
| DVL2 | Digital Vertiline 5-1/2 in. (140mm) | | | | Details |
| DVL3 | Digital Vertiline 7 in. (178mm) | | | | Details |
| DVL4 | Digital Vertiline 8-5/8 8 on. (219mm) | | | | Details |
| DVRT | Digital Vertilog | | | | Details |
| DVT | davit | | | | Details |
| DVT1 | Digital Vertilog 4-1/2 in (114mm) | | | | Details |
| DVT2 | Digital Vertilog 5-1/2 in. (140mm) | | | | Details |
| DVT3 | Digital Vertilog 7 in. (178mm) | | | | Details |
| DVT4 | Digital Vertilog 8-5/8 8 on. (219mm) | | | | Details |
| DVTL | Digital Vertiline | | | | Details |
| DW | Deep Well Service (tubing) | | | | Details |
| DW | Drilling Window | | | | Details |
| DW | Deepwater | | | | Details |
| DW | deep water, usually inaccessible by a fixed (non floating) platform | | | | Details |
| DWA | drilling with air | | | | 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 |
| DWD | Deep Water Development | | | | Details |
| DWD | dirty water disposal | | | | Details |
| DWG | drilling with gas | | | | Details |
| DWG | drawing | | | | Details |
| dwks | drawworks | | | | Details |
| DWLA | DST LINC* WireLine Adapter (* mark of SLB ) - UPP versatility | | | | Details |
| DWLTI | Days Without Lost Time Injury | | | | Details |
| DWM | drilling with mud | | | | Details |
| DWO | drilling with oil | | | | Details |
| DWOP | Drilling Well on Paper (a theoretical exercise conducted involving the Service provider managers) | | | | Details |
| DWOP | Drill Well On Paper | | | | Details |
| DWOP | drill well on paper exercise | | | | Details |
| DWP | Detailed Well Program | | | | Details |
| DWP | deep mater production | | | | Details |
| DWP | dual(double) wall packer | | | | Details |
| DWP | Downhole Wireline Packoff | | | | Details |
| DWQL | Dual Water Quicklook Log | | | | Details |
| DWS | Drilling & Workover Schedule | | | | Details |
| DWSS | Dig Well Seismic Surface Log | | | | Details |
| DWST | Digital Waterform Sonic | | | | Details |
| DWSW | drilling with salt water | | | | Details |
| dwt | Dead Weight Tonnage (see comment) | | | | Details |
| DWT | Deadweight Tester | | | | Details |
| DWT | deadweight tons | | | | Details |
| DWTR | Daily Well Testing Report | | | | Details |
| DWTR | dewatering | | | | Details |
| DX | Development workover | | | | Details |
| DX | development well workover | | | | Details |
| dx | duplex | | | | Details |
| DXC | DXC Pressure Pilot Report | | | | Details |
| dyn | dynamic | | | | Details |
| DYNPOS | Dynamic Positioning | | | | Details |
| DZ | Druckzementation | Cementing injection | | | Details |
| DZ | Drittelzug | 3 Singles | | | Details |
| DZ | ALGERIA | | | | Details |
| DZA | ALGERIA | | | | Details |
| DZPC | Dair al-Zur Petroleum Company | | | | Details |
| E&D | Exploration & Development | | | | Details |
| E.D. | effective depth | | | | Details |
| E.T.D | estimated total depth | | | | Details |
| EBITDA | earnings before interest, tax, depreciation and amortization | | | | Details |
| ECD | Equivalent Circulating Density | | | | Details |
| ECGD | Export Credits Guarantee Department | | | | Details |
| ECRD | Electrically Controlled Release Tool | | | | Details |
| ED | Experimental Design (statistical reservoir modelling analysis method) | | | | Details |
| Ed lm | Edwards lime | | | | Details |
| EDA | Exploratory Data Analysis | | | | Details |
| EDC | Egyption Drilling Company | | | | Details |
| EDC | Ethylene Dichloride | | | | Details |
| EDCTN(R) | education(tor) | | | | Details |
| EDD | expected date of delivery | | | | Details |
| EDF | Early Development Facilities | | | | Details |
| EDF | Electricité de France | | | | Details |
| EDG | Edge Detection | | | | Details |
| EDM | Engineering Data Management | | | | Details |
| EDMS | Electronic Document Management System | | | | Details |
| EDP | Exploration Drilling Program Report | | | | Details |
| EDP | Emergency Disconnect Package (Subsea tree) | | | | Details |
| EDP | Extended Draft Platform (Technip offshore platform design) | | | | Details |
| EDP | electronic data processing | | | | Details |
| EDR | Exploration Drilling Report | | | | Details |
| EDR | Electronic Drilling Recorder | | | | Details |
| EDRS | Electrical Drilling Report System | | | | Details |
| EDRS | Enhanced Drilling Reporting System (KCA DEUTAG) | | | | Details |
| EDS | Emergency Disconnection Sequence (usually in an offshore rig) | | | | Details |
| EDS | Emergency Disconnect Sequence (Offshore rig) | | | | Details |
| EDTA | Ethylene Diamine Tetraacetic Acid | | | | Details |
| EDTA | ethylene diamene tetra acetic acid | | | | Details |
| Educ | education | | | | Details |
| Edw | Edwards | | | | Details |
| EDZ | Extended Drilling Zone | | | | Details |
| Eglwd | Englewood | | | | Details |
| EHD | Entry Hole Diameter (one of the perforating charges specification) | | | | Details |
| ELMD | electric line measured depth | | | | Details |
| EMD | Equivalent Mud Density | | | | Details |
| End | Endicott | | | | Details |
| endo | endothyra | | | | Details |
| ENGPD | Engineering Porosity Data | | | | Details |
| EPDM | Ethylene-Propylene-Diene (unsaturated, type of elastomer) | | | | Details |
| Epedeco | Egyptian Petroleum Development Company | | | | Details |
| EPIDORIS | Exploration and Production Integrated Drilling Operations and Reservoir Information System | | | | Details |
| EPOD | Expanded Plan of Development | | | | Details |
| ER(D) | Extended Reach (Drilling) | | | | Details |
| ERD | Extended Reach Drilling | | | | Details |
| ERD | Extended Reach Drilling (see comment) | | | | Details |
| ERWDA | Environmental Research & Wildlife Development Agency (UAE) | | | | Details |
| ESD | Emergency Shut Down | | | | Details |
| ESD | Technology Development & Application | | | | Details |
| ESD | Equivalent Static Density | | | | Details |
| ESD | emergency shut-down | | | | Details |
| ESD | emergency shutdown | | | | Details |
| ESDS | emergency shut down system | | | | Details |
| ESDV | Emergency Shut Down Valve | | | | Details |
| ETD | Estimated Time Delay | | | | Details |
| ETD | Expected Time of Departure | | | | Details |
| ETDE | Energy Technology Data Exchange (intl. consortium) (—) | | | | Details |
| ETTD | Electromagnetic Thickness Test | | | | Details |
| ETT-D | Multifrequency Electromagnetic Thickness Log | | | | Details |
| euhed | euhedral | | | | Details |
| EUROCORD | European Federation of Twine, Cordage and Netting Industries | | | | Details |
| EWDF | Effluent Water Disposal Facilities | | | | Details |
| EWR-P4D | EWR-Phase 4D Resistivity | | | | Details |
| F & D | faced and drilled | | | | Details |
| F & D | flanged and dished(heads) | | | | Details |
| F DIP | Focused Diplog | | | | Details |
| F.DESP (FD) | Free DESPatch | | | | Details |
| F.DIS | Free DIScharge | | | | Details |
| F/DIA | flow diagram | | | | Details |
| FBSD | Fullbore set-down | | | | Details |
| FCD | Fracture Conductivity (dimensionless) | | | | Details |
| FCD | fracture capacity – a comparison of the conductivity of the fracture to the capacity of the formation | | | | Details |
| FD | Field Development (or Full field development) | | | | Details |
| FD | Final Decision | | | | Details |
| FD | Free Despatch | | | | Details |
| FD | Density Formation Density | | | | Details |
| FD | Formation Density | | | | Details |
| FD | feed | | | | Details |
| FD | floor drain | | | | Details |
| FD | flow diagram | | | | Details |
| FD EFF | feed effluent | | | | Details |
| F-D | formation density | | | | Details |
| FD/WTR | feed water | | | | Details |
| FDBM | Buoyancy Measurement Fluid Density 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 |
| FDD | Freight Demurrage Deadfreight | | | | Details |
| FDDP | Differential Pressure Fluid Density Log | | | | Details |
| FDEN | Fluid Density | | | | Details |
| FDGC | Federal Geographic Data Committee | | | | Details |
| FDI | Foreign Direct Investment | | | | Details |
| F-DIA | flow diagram | | | | Details |
| FDIS | Field Data Interface System | | | | Details |
| FDL | formation density log | | | | Details |
| fdn | foundation | | | | Details |
| FDN | Nuclear Fluid Density Log | | | | Details |
| FDNAT | Frequency-Dependent Noise Attenuation (CGGVeritas) | | | | Details |
| FDO | Field Development Options | | | | Details |
| FDP | Field Development Plan | | | | Details |
| FDP | Final Drill Pipe Pressure | | | | Details |
| FDPP | Final Drill Pipe Pressure | | | | Details |
| FDPSO | Floating Drilling Production Storage Offloading host | | | | Details |
| FDPSO | Floating Drilling, Production, Storage and Offloading Vessel | | | | Details |
| fdr | feeder | | | | Details |
| FDRC | Capacitance water holdup tool (in PLT tool) | | | | Details |
| FDS | Functional Design Specification | | | | Details |
| FED | Four Electrode Dipmeter | | | | Details |
| fed | federal | | | | Details |
| FEED | Front End Engineering and Design | | | | Details |
| FEED | Front End Engineering Design | | | | Details |
| FEPD | Front End Project Delivery | | | | Details |
| FEWD | Formation Evaluation While Drilling | | | | Details |
| FFD | Full Field Development | | | | Details |
| FFDP | Full Field Development Plan | | | | Details |
| FFDP | Full Field Development Project | | | | Details |
| FFDP | Full Field Development Plan | | | | Details |
| FHD | Flow Head | | | | Details |
| FID | Final Investment Decision | | | | Details |
| FL/BD | flammable liquid building | | | | Details |
| FLD | Fluid Loss Device (Completion valve) | | | | Details |
| fld | failed | | | | Details |
| fld | feldspar(thic) | | | | Details |
| fld | field | | | | Details |
| FLD | full-length drift | | | | Details |
| fldspr | feldspar | | | | Details |
| flg(d)(s) | flange(ed)(es) | | | | Details |
| flshd | flushed | | | | Details |
| flw(d)(g) | flow(ed)(ing) | | | | Details |
| FOD | First Oil Date | | | | Details |
| FPDM | fracture potential and domain modelling/mapping | | | | Details |
| FPDM | Fracture Potential and Domain Modelling/Mapping | | | | Details |
| FPTFD | field pressure test flow diagram | | | | Details |
| FPWD | Formation Pressure While Drilling (normaly with StethoScope device) | | | | Details |
| FPWD | Formation Pressure While Drilling | | | | Details |
| frac(d)(s) | fracture, fractured, fractures | | | | Details |
| FRD | Focused Results Delivery | | | | Details |
| Fred | Fredericksburg | | | | Details |
| Fred | Fredonia | | | | Details |
| ftBDF | feet Below Drill Floor | | | | Details |
| FTD | FiTted | | | | Details |
| FUD | Fields under development | | | | Details |
| FUD | Fear, uncertainty, doubt | | | | Details |
| FULDI | Full Diameter Study Report | | | | Details |
| FWAD | Fresh water Arrival Draft | | | | Details |
| FWD | Flowing While Drilling | | | | Details |
| fwd | forward | | | | Details |
| FWD | four-wheel drive | | | | Details |
| FWDD | Fresh Water Departure Draft | | | | Details |
| fxd | fixed | | | | Details |
| GAGD | Gas Assisted Gravity Drainage | | | | Details |
| gal/day | gallons per day | | | | Details |
| GASBEND | Good And Safe (Port) Both ENDs | | | | Details |
| GASD | Gas Detection | | | | Details |
| GBDA | gallons breakdown acid | | | | Details |
| GCD | Gamma Compensated Density | | | | Details |
| GCD | gas-cut distillate | | | | Details |
| GCDB | Geographic Coordinate Database | | | | Details |
| GCPD | gallons condensate per day | | | | Details |
| GCRD | Gamma Guard | | | | Details |
| GD | GRENADA | | | | Details |
| GD | gravity drainage | | | | Details |
| gd | good | | | | Details |
| GD | Geothermal Development | | | | Details |
| gd | o&t good odor & taste | | | | Details |
| GD li | Glen Dean lime | | | | Details |
| GD/GD | GDynia/GDansk | | | | Details |
| GDAT | Geodetic Datum | | | | Details |
| GDBs | Government Debt Bonds | | | | Details |
| GDD | Gas Downhole Density | | | | Details |
| GDE | Gross Depositional Environment | | | | Details |
| GDE | General Deposition Environment | | | | Details |
| GDE | geothermal development, failure | | | | Details |
| GDF | Gaz de France | | | | Details |
| GDF | Gas de France France | | | | Details |
| GDI | Graphics Device Interface | | | | Details |
| GDIP | Geodip Log | | | | Details |
| Gdld | Goodland | | | | Details |
| GDP | Global Drilling Portfolio | | | | Details |
| GDP | Gross Domestic Product | | | | Details |
| GDP | Gas de Portugal Portugal | | | | Details |
| GDPT | Global Deepwater Planning Tool | | | | Details |
| GDR | Global Depositary Receipt | | | | Details |
| GDR | Geothermal Development Redrill | | | | Details |
| GDR | gas-distillate ratio | | | | Details |
| GDS | Geothermal Development-Success | | | | Details |
| GDS | geothermal development, success | | | | Details |
| GDT | Gas Down To | | | | Details |
| Gdwn | Goodwin | | | | Details |
| GDX | Geothermal Development Recompletion | | | | Details |
| GEODY | GEO DYS Log | | | | Details |
| GGD | Gamma Gamma Density | | | | Details |
| GGD | gas lift gas distribution | | | | Details |
| GGRD | Gamna Guard El | | | | Details |
| GGRD | Gamma Guard EL | | | | Details |
| G-Grd | Gamma Guard | | | | Details |
| GLADTM | software package, gas lift assisted design | | | | Details |
| gld | thd galled threads | | | | Details |
| GMDSS | Global Maritime Distress Safety System | | | | Details |
| gnd | grained(as in fine-grained) | | | | Details |
| GOD | Geothermal Development Deepening | | | | Details |
| GODT | gas odor distillate taste | | | | Details |
| GOGD | Gas Oil Gravity Drainage | | | | Details |
| Good | L Goodland | | | | Details |
| GOPD | gallons of oil per day | | | | Details |
| Gouldb | Gouldbusk | | | | Details |
| GPD | gallons per day | | | | Details |
| Gr Sd | Gray sand | | | | Details |
| GR&DC | Gulf Research and Development Company | | | | Details |
| GR, GRD | ground | | | | 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 |
| GRAD | Gradiometer Log | | | | Details |
| GRAD | gradiomanometer | | | | Details |
| grad | gradual, gradually | | | | Details |
| GRD | GeaRed | | | | Details |
| GRD | GRENADA | | | | Details |
| Grd | Guard | | | | Details |
| GRDC | Gamma Ray Depth Control | | | | Details |
| grdg | grading | | | | Details |
| grdg | loc grading location | | | | Details |
| GRDL | Guard | | | | Details |
| GRDL | guard log | | | | Details |
| grnd | ground | | | | Details |
| GSD | Grain Size Distribution (reservoir material, for sand control) | | | | Details |
| GTD | Gas Technology Development | | | | Details |
| GWD | Gyro While Drilling (drilling BHA tool) | | | | Details |
| GWD | Geothermal Wildcat Deepening | | | | Details |
| GWD | geothermal wildcat, success | | | | Details |
| GWDC | Great Wall Drilling Company | | | | Details |
| GWDP | Global Well Delivery Process | | | | Details |
| GyroHDS1 | Gyro High-Speed Directional Survey | | | | Details |
| HADR | High Temperature Azimuthal Gamma Ray | | | | Details |
| HAZID | Hazard Identification (meeting) | | | | Details |
| HCDS | Hydrocarbon or Gas Detection | | | | Details |
| HCDS | hydrocarbon drain system | | | | Details |
| HD | Hard Disk | | | | Details |
| hd | hard | | | | Details |
| HD | Hot Dry Rock Development | | | | Details |
| HD | Hot Dry Rock Development-Failure | | | | Details |
| hd | head | | | | Details |
| HD | heavy duty | | | | Details |
| HD | high detergent | | | | Details |
| HD | hot dry rock development, failure | | | | Details |
| HD | Hydril | | | | Details |
| HD | perforating, hyperdome | | | | Details |
| HD | Hyperdome Perforating | | | | Details |
| Hd li | hard lime | | | | Details |
| hd sd | hard sand | | | | Details |
| HDA | Helideck Assistant | | | | Details |
| HDD | Hydraulic Hold Down Tool (used w/ FlexPac Packer) | | | | Details |
| HDD | Hot Dry Rock Development Deepening | | | | Details |
| HDF | Hydraulic Delay Firing head (SLB) | | | | Details |
| HDI | Category Data Import | | | | Details |
| HDIL_BA | High-Definition Induction Log | | | | Details |
| HDIL_HAL | Hostile Dual Induction | | | | Details |
| HDIP | Hexagonol Diplog | | | | Details |
| HDIP | Hexdip | | | | Details |
| HDK | Hochdruck-Kreuz | | | | Details |
| hdl | handle | | | | Details |
| HDLL | High-Definition Lateral Log | | | | Details |
| HDLTSBENDS | Half Despatch Lay Time Saved Both Ends | | | | Details |
| HDM | Hydraulic Distribution Manifold (Subsea kit) | | | | Details |
| HDMI | High-Definition Multimedia Interface | | | | Details |
| hdns | hardness | | | | Details |
| HDPE | High Density Polyethelene | | | | Details |
| HDPE | High Density Polyethylene | | | | Details |
| HDPE | high density polyethylene plastic | | | | Details |
| HDR | Hot Dry Rock Development Redrill | | | | Details |
| hdr | header | | | | Details |
| HDS | Hot Dry Rock Development-Success | | | | Details |
| HDS | hot dry rock development, successful | | | | Details |
| HDS | hydrogen delsulfurization | | | | Details |
| HDS1L | High-Speed Directional Survey | | | | Details |
| HDS1R | High-Speed Directional Survey Retrievable | | | | Details |
| HDSM | High-Speed Directional Survey MultiLink | | | | Details |
| HDT | Hydrate Disassociation Temp | | | | Details |
| HDT | High Resolution Dipmeter Log | | | | Details |
| HDT | Dipmeter (High Resolution) | | | | Details |
| HDT | High Resolution Dipmeter | | | | Details |
| HDT | Four-Arm Caliber Log | | | | Details |
| HDT | Fracture Identification Log | | | | Details |
| HDT | Inclinometer Survey Directional | | | | Details |
| HDTD | Hostile Downhole Tension | | | | Details |
| HDT-D | Dipmeter-Digital | | | | Details |
| HDV | heavy-duty vehicles | | | | Details |
| Hdwr | hardware | | | | Details |
| HDWTS | Half Demurrage Weather Time Saved | | | | Details |
| HDX | Hot Dry Rock Development Recompletion | | | | Details |
| HELDK | HELicopter DecK | | | | Details |
| HFDT | High Frequency Dielectric | | | | Details |
| HHDW | Handy Heavy d.w. (scrap) | | | | Details |
| HLDN | hold down | | | | Details |
| HLDS | Hostile Litho-Density Sonde | | | | Details |
| HLDT | Hostile Environment Litho-Density | | | | Details |
| HLSD | high-level shutdown | | | | Details |
| HMD | HEARD AND MCDONALD ISLANDS | | | | Details |
| HND | Higher National Diploma | | | | Details |
| HND | HONDURAS | | | | Details |
| HND/WHL | handwheel | | | | Details |
| HNDLG | handling | | | | Details |
| Hodp | Hospah | | | | Details |
| holiday | Hole in the protective coating of a steel pipeline in the field | | | | Details |
| HPDU | High pressure displacement Unit | | | | Details |
| HRD | High Resoluti on Dip Meter | | | | Details |
| HRD | High Resolution Dipmeter | | | | Details |
| HRD | high-resolution dipmeter | | | | Details |
| HRDD | HILT High Resolution Density Device | | | | Details |
| HRGD | HILT High Resolution Resitivity Gamma Ray Density Device | | | | Details |
| HSD | High Shot Density | | | | Details |
| HSD | heavy steel drum | | | | Details |
| HSESD | Health Safety Environment & Sustainable Development | | | | Details |
| HTSD | high-temperature shutdown | | | | Details |
| HUD | Hold Up Depth | | | | Details |
| HVDC | High Voltage Direct Current | | | | Details |
| HWD | Hot Dry Rock Wildcat Deepening | | | | Details |
| HWD | Hot Dry Rock Wildcat-Success | | | | Details |
| HWD | hot dry rock wildcat, success | | | | Details |
| HWDP | Heavy Weight Drill Pipe | | | | Details |
| HWDP | Heavy-Weight Drill Pipe (sometimes spelled Hevi-Wate) | | | | Details |
| HYD | hydraulic | | | | Details |
| HYD | Hydril thread | | | | Details |
| HYDA | Hydril Type A joint | | | | Details |
| HYDCA | Hydril Type CA joint | | | | Details |
| HYDCS | Hydril Type CS Joint | | | | Details |
| HYDL | Hydrologsm | | | | Details |
| HYDRO | hydro test | | | | Details |
| HYDRO | Norsk Hydro Norway | | | | Details |
| HYDRO-Congo | National Oil Exploration and Exploitation Corp. Congo | | | | Details |
| hydtr | hydrotreater | | | | Details |
| I.D | sign identification sign | | | | Details |
| I/CFD | interconnecting flow diagram | | | | Details |
| IADC | International Association of Drilling Contractors | | | | Details |
| IADC | International Association of Drilling Contractors (formerly AAODC) | | | | Details |
| IBRD | International Bank for Reconstruction and Development | | | | Details |
| ICD | Inflow Control Device | | | | Details |
| ICD | Inflow Control Devices | | | | Details |
| ICEED | International Research Center for Energy and Economic Development | | | | Details |
| ID | Identifier | | | | Details |
| ID | Inner or Internal Diameter (of a tubular component such as a casing) | | | | Details |
| ID | Interim Directive (internal instructions) | | | | Details |
| ID | Inner Diameter | | | | Details |
| ID | INDONESIA | | | | Details |
| ID | inside diameter | | | | Details |
| ID | Idaho | | | | Details |
| IDA | International Development Association | | | | Details |
| IDB | Islamic Development Bank | | | | Details |
| IDC | Intangible Drilling Costs | | | | Details |
| IDCS | Integrated Distribution Control System. | | | | Details |
| IDD | Industrial Development Division | | | | Details |
| IDE | Integrated Device Electronics | | | | Details |
| IDEL | IDEL Log | | | | Details |
| IDENT | identify(ier)(ication) | | | | Details |
| Idio | Idiomorpha | | | | Details |
| IDLH | Immediately Dangerous to Life & Health | | | | Details |
| IDm | minimum ID | | | | Details |
| IDN | INDONESIA | | | | Details |
| IDn | nominal ID | | | | Details |
| IDP | Individual Developent Plan | | | | Details |
| IDP | Initial Development Plan | | | | Details |
| IDRO | Industrial Development and Renovation Organization | | | | Details |
| IDS | Independent Data Services | | | | Details |
| IDS | Integrated Directional Sonde | | | | Details |
| IDSC | Information and Decision Support Center | | | | Details |
| IED | Improvised Explosive Device (homemade bomb deployed in ways & roads) | | | | Details |
| i-Field | Intelligent Field | | | | Details |
| IGD | Injection Gas deepening | | | | Details |
| IHRDC | International Human Resources Development Company | | | | Details |
| ILD | Deep Indection Log | | | | Details |
| imdb | imbedded | | | | Details |
| IMDG | International Maritime Dangerous Code | | | | Details |
| immed | immediate (lee) | | | | Details |
| immed | immediate(ly) | | | | Details |
| Inbded | imbedded | | | | Details |
| incd | incandescent | | | | Details |
| IND | INDIA | | | | Details |
| ind | induction | | | | Details |
| INDEIN | Ingenieria y Desarrolio Industrial S.A. Spain | | | | Details |
| Ind-G | Induction Gamma Ray | | | | Details |
| Ind-G | Induction Gamma | | | | Details |
| indic | indicate(s)(tion) | | | | Details |
| indiv | individual | | | | Details |
| indr | indurated | | | | Details |
| INDRS | IND RES Sonic Log | | | | Details |
| indst | indistinct | | | | Details |
| INDT | INDT Log | | | | Details |
| INDWE | Individual Well Record Report | | | | Details |
| inst(d)(g)(l) | install(ed)(ing)(tion) | | | | Details |
| interbd | interbedded | | | | Details |
| interbdd | interbedded | | | | Details |
| IPOD | Initial Plan of Development | | | | Details |
| IRDV | Intelligent Remote Dual Valve | | | | Details |
| irid | iridescent | | | | Details |
| IRSHAD | Related with Petroleum Ports Authority and Shipping Agents | | | | Details |
| ISDN | Integrated Services Digital Network | | | | Details |
| ISFCD | ISF Conductivity Log | | | | Details |
| ISND | Idd El-Shargi North Dome | | | | Details |
| ISTD | Information Systems and Technology Division | | | | Details |
| ITD | intention to drill | | | | Details |
| IUD | instantaneous underbalance device | | | | Details |
| IWD | Injection Water deepening | | | | Details |
| JD | Jar Down | | | | Details |
| JD | Junk Damage | | | | Details |
| JDC | Japan Drilling Company | | | | Details |
| JDC | Jar Down pulling tool for C Core option | | | | Details |
| JDECO | Jerusalem District Electricity Corporation | | | | Details |
| JDL | Jar Down pulling tool for L Core option | | | | Details |
| Jdn | Jordan | | | | Details |
| JDS | Jar Down pulling tool for S Core option | | | | Details |
| jmd | jammed | | | | Details |
| JODCO | Japan Oil Development Company | | | | Details |
| JODI | Joint oil data initiative | | | | Details |
| JODICO | Jordan Dead Sea Industries Company | | | | Details |
| Jordinvest | Jordan Investment Trust | | | | Details |
| Jud | Riv Judith River | | | | Details |
| JVD | Joint Venture Drilling | | | | Details |
| KAZGOSNEDRA | Kazakhstan | | | | Details |
| Kbbl/d | 1000 barrels per day | | | | Details |
| KBD | Thousand Barrels per Day | | | | Details |
| KD | Kelly Down | | | | Details |
| KD | kiln dried | | | | Details |
| KD | Kincaid lime | | | | Details |
| KD | knock down | | | | Details |
| KDB | kelly drive bushing | | | | Details |
| KDBE | kelly drive bushing elevation | | | | Details |
| KDB-LDG | FLG kelly drill bushing to landing flange | | | | Details |
| KDB-MLW | kelly drill bushing to mean low water | | | | Details |
| KDB-Plat | kelly drill bushing to platform | | | | Details |
| KDP | Kurdistan Democratic Party | | | | Details |
| KED | Kriging with External Drift | | | | Details |
| KFAED | Kuwait Fund for Arab Economic Development | | | | Details |
| Kl/d | 1000 liters per day | | | | Details |
| kld | killed | | | | Details |
| L/D | Laydown (at rigsite) | | | | Details |
| L/D | Lay Down (ablegen) | | | | Details |
| LAD | Logging After Drilling | | | | Details |
| lad | ladder | | | | Details |
| Land | Landulina | | | | Details |
| Laud | Lauders | | | | Details |
| lchd | leached | | | | Details |
| LCTD | last crystal to dissolve | | | | Details |
| LD | Layer Depth | | | | Details |
| LD | Lay Down (tubing, rods, etc.) | | | | Details |
| LD | Liquidated Damages | | | | Details |
| LD | lay down | | | | Details |
| LD | laid down | | | | Details |
| ld | load | | | | Details |
| ld(s) | land(s) | | | | 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 |
| LDDP | laid(laying) down drillpipe | | | | Details |
| LDFL | large-diameter flow line | | | | Details |
| LDFN | lay down for night | | | | Details |
| LDG | landing | | | | Details |
| LDG | loading | | | | Details |
| LDHI | Low dose hydrate inhibitors | | | | Details |
| L-DK | loading dock | | | | Details |
| LDL | Litho Density Log | | | | Details |
| LDL | Lithology Density Log | | | | Details |
| LDN | LaDeN | | | | Details |
| LDP | Large Diameter Probe | | | | Details |
| LDPE | Low Density Polyethylene | | | | Details |
| LDR | loader | | | | Details |
| LDS | Lock Down Sleeve (drilling riser) | | | | Details |
| LDS | Litho Density Sonde | | | | Details |
| LDT | Litho Density | | | | Details |
| LDT | Litho-Density | | | | Details |
| LDTEP | LDT EPT Gamma Ray Log | | | | Details |
| LDV | light duty vehicles | | | | Details |
| Leadv | Leadville | | | | Details |
| LGD | Lower Glen Dean | | | | Details |
| LHD | Low Head Drilling (a type of MPD that formation fluid is not produced to surface) | | | | Details |
| LITDE | Litho Density Quicklook Log | | | | Details |
| LLD | Laterolog Deep | | | | Details |
| LLDPE | Linear Low-Density Polyethylene | | | | Details |
| LMTD | log mean temperature difference | | | | Details |
| LPSD | laser particle size distribution | | | | Details |
| LSD | Lashed Secured Dunnage | | | | Details |
| LSD | Land Surface Datum | | | | Details |
| LSD | legal subdivision(Canada) | | | | Details |
| LSD | light steel drum | | | | Details |
| LSPD | Line Speed (wireline) | | | | Details |
| LT/cd | long tons of sulfur per calendar day | | | | Details |
| LTD | light | | | | Details |
| LTD | log total depth | | | | Details |
| ltd | limited | | | | Details |
| LTD | Logger’s Total Depth | | | | Details |
| LTDP | Long Term Development Plan | | | | Details |
| LTDS | Long Term Drilling Sequence | | | | Details |
| LTSD | low-temperature shutdown | | | | Details |
| Lued | Lueders | | | | Details |
| LWD | Logging While Drilling | | | | Details |
| LWD | Lost Workdays (see comment) | | | | Details |
| LWD | see Logging While Drilling | | | | Details |
| LWDC | Lost Work Day Case | | | | Details |
| LWDI | Lost Work Day Incident | | | | Details |
| M/D | Montage/Demontage | | | | Details |
| m/d | cubic meters per day | | | | Details |
| Ma’adin | Saudi Arabian Mining Company | | | | Details |
| Mad | Madison | | | | Details |
| MAPDA | Middle Atlantic Petroleum Distribution Association | | | | Details |
| Marg. Rd | Marginulina round | | | | Details |
| mbd | thousand barrels per day | | | | Details |
| MBD | Millions of barrels per day | | | | Details |
| MBD | thousands of barrel per day | | | | Details |
| mBDF | meters Below Drill Floor | | | | Details |
| MBF/D | thousand barrels fluid per day | | | | Details |
| Mbo/d | thousand barrels oil per day | | | | Details |
| Mbod | thousand barrels of oil per day | | | | Details |
| Mboed | thousand barrels of oil equivalent per day | | | | Details |
| MBPD | Million barrels per day | | | | Details |
| MBPD | thousands of barrels per day | | | | Details |
| MBW/D | thousand barrels of water per day | | | | Details |
| MCD | Mudcap Drilling | | | | Details |
| MCD | Mechanical Completion Dossier | | | | Details |
| Mcfd | thousand cubic feet per day | | | | Details |
| MCFGPD | thousand cubic feet of gas per day | | | | Details |
| mD | millidarcy, measure of permeability, with units of area | | | | Details |
| MD | Measured Depth (see also MDSS) | | | | Details |
| MD | Measurements/Drilling Log | | | | Details |
| mD | millidarcy, measure of permeability, with units of area | | | | Details |
| MD | Measured Depth | | | | Details |
| MD | MOLDOVA | | | | Details |
| MD | measured depth – the along hole measurement of depth of the well As opposed to true vertical depth (TVD) | | | | Details |
| MD | Maryland | | | | Details |
| md | millidarcies | | | | Details |
| MD | Mt. Diablo | | | | Details |
| MDA | Monopole Dipole Acoustic | | | | Details |
| MDA | Monopole Dipole Array | | | | Details |
| MDA | MOLDOVA | | | | Details |
| MDAH | Measured Depth Along Hole | | | | Details |
| MDBRL | Measured Depth Below Reference Level | | | | Details |
| MDC | Message Distribution Center | | | | Details |
| MDC | Monel drill collars | | | | Details |
| MDDO | maximum daily delivery obligation | | | | Details |
| MDEA | Methyl Diethanolamine (aMDEA) | | | | Details |
| MDEA | methyl diethanolamine | | | | Details |
| MDEG | Michigan Department of Environmental Quality | | | | Details |
| MDF | market demand factor | | | | Details |
| MDG | MADAGASCAR | | | | Details |
| MDH | Miller-Dyes-Hutchinson Method Engineering | | | | Details |
| MDHS | Methods for the Determination of Hazardous Substances (UK-HSE) | | | | Details |
| MDL | Minimum Data List | | | | Details |
| MDL | Methane Drainage Licence (United Kingdom), a type of onshore licence allowing natural gas to be collected "in the course of operations for making and keeping safe mines whether or not disused" | | | | Details |
| mdl | middle | | | | Details |
| MDL_R | Compact Dual Laterolog Sonde | | | | Details |
| MDLT | Medium Dual Laterolog | | | | Details |
| MDMT | Minimum Design Metal Temperature (see comment) | | | | Details |
| MDN | Compact Dual Neutron Sonde | | | | Details |
| MDN | Compact Dual Neutron | | | | Details |
| MDNR | Michigan Department of Natural Resources | | | | Details |
| MDO (DO) | Marine Diesel Oil | | | | Details |
| MDP | Master Development Plan | | | | Details |
| MDPV | Maximum Differential Pressure Valve | | | | Details |
| MDPV | Maximum Differential Bar Vent | | | | Details |
| MDQ | minimum daily quantity | | | | Details |
| MDR | Monthly Development Report | | | | Details |
| MDR | Monthly Drilling Report | | | | Details |
| MDR | manufacturer’s data reports | | | | Details |
| MDR | Main Drilling Report | | | | Details |
| MDRT | Measured Depth below Rotary Table | | | | Details |
| MDRT | measured depth relative to the rotary table | | | | Details |
| MDS | Master Data Store | | | | Details |
| mdse | merchandise | | | | Details |
| MDSS | Measured Depth Sub-sea | | | | Details |
| MDST | Mudstone | | | | Details |
| MDT | Measured Drill Test (Schlumberger tool) | | | | Details |
| MDT | Modular Dynamic Formation Tester (Schlumberger tool) | | | | Details |
| MDT | Modular Dynamic Tester | | | | Details |
| MDT | Modular Formation Dynamics Tester | | | | Details |
| MDTP | Measured Depth to Top of Pay | | | | Details |
| MDV | MALDIVES | | | | Details |
| MDWT | Metric DeadWeight tons | | | | Details |
| mdy | muddy | | | | Details |
| med | medium | | | | Details |
| med | median | | | | Details |
| Med | Medina | | | | Details |
| med | FO medium fuel oil | | | | Details |
| med | gr medium grained | | | | Details |
| Med B | Medicine Bow | | | | Details |
| MEDCO | Mediterranean Oil Shipping & Transport Co. SAL Lebanon | | | | Details |
| Medevac | Medical Evacuation (type of a drill that simulates the man-down situation) | | | | Details |
| MEDGULF | Mediterranean and Gulf Insurance and Reinsurance Company | | | | Details |
| MEDP | Maximum Expected Design Pressure | | | | Details |
| Medr | Medrano | | | | Details |
| MEDT | Middle East Drilling Technology Conference and Exhibition | | | | Details |
| merid | meridian | | | | Details |
| MFD | Manifold | | | | Details |
| mfd | manufactured | | | | Details |
| MFD | mechanical flow diagram | | | | Details |
| mfd | microfarad | | | | Details |
| MFLD | Mechanical Fluid Loss Device (Completion tool) | | | | Details |
| mg/dscm | milligrams per dry standard cubic meter | | | | Details |
| mid | middle | | | | Details |
| Mid | Midway | | | | Details |
| MIDDU | moving(moved) in double drum unit | | | | Details |
| Midor | Middle East Oil Refinery | | | | Details |
| MIDTAP | Middle East Oil Tankage & Pipelines Egypt | | | | Details |
| MKD | MACEDONIA, THE FORMER YUGOSLAV REPUBLIC | | | | Details |
| mLD | meter Logging Depth | | | | Details |
| mld | milled | | | | Details |
| MMbd | million barrels per day | | | | Details |
| MMbod | million barrels of oil per day | | | | Details |
| MMboed | million barrels of oil equivalent per day | | | | Details |
| MMbpd | million barrels per day | | | | 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 |
| mMD | meter Measured Depth | | | | Details |
| MMgal/day | million gallons per day | | | | 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 |
| MND | Czech National Oil Company Czech Rep. | | | | Details |
| MOD | Money Of Day (economics, actually cost at time in future, not discounted to today) | | | | Details |
| MOD | Money of the Day | | | | Details |
| MOD | Ministry of Defence | | | | Details |
| mod | moderate | | | | Details |
| mod | model | | | | Details |
| mod | moderate(ly) | | | | Details |
| mod | modification | | | | Details |
| MODA | Manual of Delegated Authority | | | | Details |
| MODEC | Mitsui Ocean Development & Engineering Co., Ltd. Japan | | | | Details |
| MODU | Mobile Offshore Drilling Unit | | | | Details |
| MODU | Mobile Offshore Drilling Units | | | | Details |
| modu | modular | | | | Details |
| MPD | Median Particle Diameter | | | | Details |
| MPD | Managed Pressure Drilling | | | | Details |
| MPD | Compact PhotoDensity Sonde | | | | Details |
| MPD | Compact PhotoDensity | | | | Details |
| MPDC | Mitsubishi Petroleum Development Co. Ltd. Japan | | | | Details |
| MQD | Mean Quadratic Deviation | | | | Details |
| MRIL-WD | Magnetic Resonance Image Logging | | | | Details |
| MRLD | Mechanical Rigid Lockdown tool (Drill euipment tool) | | | | Details |
| MRPD | MDT - Dual-Probe Module | | | | Details |
| MRWD | Magnetic Resonanace While Drilling | | | | Details |
| Mscf/d | thousand standard cubic feet per day | | | | Details |
| MSDP | maximum section design pressure | | | | Details |
| MSDS | Material Safety Data Sheet | | | | Details |
| MSDS | Material Safety Data Sheets | | | | Details |
| MSDS | materials safety data sheet | | | | Details |
| MSDS | Material Safety Data Sheet | | | | Details |
| MTD | Mass Transport Deposit (Subsea) | | | | Details |
| MTD | maximum total depth | | | | Details |
| MTD | mean temperature difference | | | | Details |
| MTD | measured total depth | | | | Details |
| mtd | mounted | | | | Details |
| MTDS | Medium Term Drilling Sequence | | | | Details |
| mTVD | meter True Vertical Depth | | | | Details |
| MUD | Mud Log | | | | Details |
| Mud | drilling mud Usually a slurry of weighting and fluid-loss control solids in a liquid | | | | Details |
| MUD | Mud Log/Focus Log | | | | Details |
| mud | wt mud weight | | | | Details |
| MUD | Mud Attenuation | | | | Details |
| mudst | mudstone | | | | Details |
| MUDT | Mud Temperatire Log | | | | Details |
| Mvde | Mesa Verde | | | | Details |
| MWD | Measurement While Drilling | | | | Details |
| MWD | Measuring While Drilling | | | | Details |
| MWD | see measurement while drilling or logging while drilling | | | | Details |
| MWD | marine wholesale distributors | | | | Details |
| MWDP | Mud Weight Density Predictor (Petrel option) | | | | Details |
| MWDP | maximum well design pressure | | | | Details |
| MWDRE | Measurement While Drilling Report | | | | Details |
| mxd | mixed | | | | Details |
| N/D | Nipple down | | | | Details |
| n/d | Not Determined | | | | Details |
| NACD | National Association of Chemical Distributors | | | | Details |
| NAD | North American Datum | | | | Details |
| NALRD | Northern Alberta Land Registration district | | | | Details |
| NBAD | National Bank of Abu Dhabi | | | | Details |
| NBD | New Business Development | | | | Details |
| NBD | National Bank of Dubai | | | | Details |
| NCD | Nigerian Content Directive | | | | Details |
| ND | Nipple Down (wellhead) | | | | Details |
| ND | Nipple Down | | | | Details |
| ND | nipple down Disassemble | | | | Details |
| ND | no data | | | | Details |
| ND | nippled down | | | | Details |
| ND | nondetergent | | | | Details |
| ND | not drilling | | | | Details |
| NDA | National Drilling Association | | | | Details |
| NDBOPs | nipple(ed)(ing) down blowout preventers | | | | Details |
| NDC | National Drilling Company | | | | Details |
| NDC | Neutron Depth Control | | | | Details |
| NDC | National Drilling Co. Abu Dhabi | | | | Details |
| NDD | non-density dependent | | | | Details |
| NDE | Nondestructive Examination (See comment of NDT) | | | | Details |
| NDE | not deep enough | | | | Details |
| NDF | Non Damaging Fluids | | | | Details |
| NDI | Nondestructive Inspection (See comment of NDT) | | | | Details |
| Ndl | Cr Noodle Creek | | | | Details |
| NDOR | notifiable dangerous occurrence rate | | | | Details |
| NDS | No Data Submitted | | | | Details |
| NDSM | Nederlandse Dok en Scheepsbouw Maatschappij Netherlands | | | | Details |
| NDT | Non-Destructive Test (tests the equipment to their limits - See comment) | | | | Details |
| NDT | non destructive testing | | | | Details |
| NDT | nipple-down tree | | | | Details |
| NDT | nondestructive testing | | | | Details |
| NEDC | Near East Development Company | | | | Details |
| NFD | Neutron Formation Density | | | | Details |
| NFD | new field discovery | | | | Details |
| NGDC | National Geoscience Data Centre (United Kingdom) | | | | Details |
| NGTLD | NGT LDT QL Log | | | | Details |
| NHDA | National Hydrocarbons Data Archive (United Kingdom) | | | | Details |
| NHDS | naptha-hydrogen desulfurization | | | | Details |
| NID | notice of intention to drill | | | | Details |
| NIDC | National Iranian Drilling Company | | | | Details |
| NIDOCO | Nile Delta Oil Company Egypt and others | | | | Details |
| NIRPDC | National Iranian Refining & Petroleum Products Distribution Co. Iran | | | | Details |
| NLD | NETHERLANDS | | | | Details |
| NMD | Norwegian Maritime Directorate | | | | Details |
| NMDC | Non Magnetic Drill Collar | | | | Details |
| NMDC | Non Magnetic Drill Collars | | | | Details |
| nod | nodules | | | | Details |
| nod | nodule, nodular | | | | Details |
| Nod. | blan. Nodosaria blanpiedi | | | | Details |
| Nod. | Mex. Nodosaria mexicana | | | | Details |
| NODCO | National Oil Distribution Company | | | | Details |
| NODCO | National Oil Distribution Co. Qatar | | | | Details |
| NODE | Well Performance Simulation (NODES) | | | | Details |
| NOMADS | National Oil-Equipment Manufacturers and Delegates Society | | | | Details |
| NPD | Norwegian Petroleum Directorate, Norway | | | | Details |
| NPD | Norwegian Petroleum Directorate | | | | Details |
| NPD | new pool discovery | | | | Details |
| NPD | Norwegian Petroleum Directorate Norway | | | | Details |
| NPDES | Natural Pollution Discharge Elimination System | | | | Details |
| NPDES | National pollution discharge | | | | Details |
| NPDES | National Pollutant Discharge Elimination System | | | | Details |
| NPDES | National Pollution Discharge Elimination System | | | | Details |
| NRPOD | New Revised Plan of Development | | | | Details |
| NRSD | nonreturnable steel drum | | | | Details |
| NSD | Non Stop Drilling (see comment) | | | | Details |
| nstd | nonstandard | | | | Details |
| NTD | new total depth | | | | Details |
| NYD | not yet drilled | | | | Details |
| NYDEC | New York State Department of Environmental Conservation | | | | Details |
| O sd | oil sand | | | | Details |
| OBDT | Oil Base Mud Dipmeter | | | | Details |
| OBDTL | OBDT Log | | | | Details |
| OD | Outside Diameter | | | | Details |
| OD | Outer Diameter (of a tubular component such as casing) | | | | Details |
| od | odor | | | | Details |
| OD/ID | outside diameter/inside diameter, usually used in reference to pipe dimension, and a factor in pressure stability of the pipe | | | | Details |
| ODAC | Oil Depletion Analysis Centre | | | | Details |
| ODB | Oman Development Bank | | | | Details |
| ODD | Oil Downhole Density | | | | Details |
| ODE | Ordinary Differential Equations | | | | Details |
| Odel | O’Dell | | | | Details |
| ODFE | Old Drill Floor Elevation | | | | Details |
| ODME | Oil Discharge Monitoring Equipment (transferring by ship) | | | | Details |
| ODP | Ocean Drilling Program | | | | Details |
| ODR | Operating day rate | | | | Details |
| ODS | Ozone Depleting Substance | | | | Details |
| ODT | Oil Down To | | | | Details |
| ODT | Oil Down To (in reservoir) | | | | Details |
| ODT | OmniDirectional Tool | | | | Details |
| OECD | Organization for Economic Cooperation and Development | | | | Details |
| OECD | Organization of Economic Cooperation and Development | | | | Details |
| OECD | Organization for Economic Cooperation & Development | | | | Details |
| OGD | Onshore Gas Development | | | | Details |
| OGDC | Oil and Gas Development Corp. Pakistan | | | | Details |
| OGDCL | Oil & Gas Development Company Limited | | | | Details |
| OISD | OIL INDUSTRY SAFETY DIRECTORATE | | | | Details |
| OLADE | Organization Latinoamericana de Energia Ecuador | | | | Details |
| OMDP | Ocean Margin Drilling Program (or drilling project) | | | | Details |
| OMPD | Opportunity Maturation and Project Delivery | | | | Details |
| OMPD | Offender Management & Professional Development | | | | Details |
| OODBMS | Object Oriented DBMS | | | | Details |
| OPBD | old plugback depth | | | | Details |
| ORD | Compensated Bulk Density | | | | Details |
| Ord | Ordovican | | | | Details |
| OS&D | Over, Short & Damage (Report) | | | | Details |
| OSD | operation shutdown | | | | Details |
| OSIDP | oil standing in drillpipe | | | | Details |
| OTD | old total depth | | | | Details |
| OTD | original total depth | | | | Details |
| OTDR | Optical Time Domain Reflectometry | | | | Details |
| overbend | High spot in a pipeline usually installed by field-bending a pipeline joint | | | | Details |
| Ovhd | overhead | | | | Details |
| OVID | Offshore Vessel Inspection Database | | | | Details |
| OWDD | oil well drilled deeper | | | | Details |
| P&A’d | Plug & Abandon | | | | Details |
| P&ID | Piping & Instrumentation Diagram | | | | Details |
| P&ID | Process & Instrumentation Diagram | | | | Details |
| P&ID | Piping and Instrumentation Diagram | | | | Details |
| P&ID | process and instrument diagram | | | | Details |
| P&IDS | piping and instrument diagrams | | | | Details |
| P/BLDG | pump building | | | | Details |
| P/DIA | piping diagram | | | | Details |
| PAD | Pressuer Activation Device (rupture disk) | | | | Details |
| PAD | Petroleum Administration for Defense | | | | Details |
| PADD | Petroleum Administration for Defense Districts | | | | Details |
| Padd | Paddock | | | | Details |
| PADPRT | Pressure Assisted Drillpipe Running Tool | | | | Details |
| PB-ADA | report available only through National | | | | Details |
| PBD | Pason Billing System | | | | Details |
| PBD | plugged-back depth | | | | Details |
| PBDMS | Playback DMSLS Log | | | | Details |
| PBTD | Plug Back Total Depth | | | | Details |
| PBTD | Plugged-Back Total Depth | | | | Details |
| PBTD | plug back t otal depth | | | | Details |
| PBTD | plugged back total depth | | | | Details |
| PCD | Microlog | | | | Details |
| PCDD | polychlorinated dibenzodioxins | | | | Details |
| PCDF | polychlorinated dibenzofurans | | | | Details |
| PCDM | Power and Control Distribution Module | | | | Details |
| PD | Positive Displacement | | | | Details |
| Pd | Dew Point Pressure | | | | Details |
| PD | per day | | | | Details |
| PD | Geopressure Development | | | | Details |
| PD | geopressure development, failure | | | | Details |
| pd | paid | | | | Details |
| PD | plug down | | | | Details |
| PD | present depth | | | | Details |
| PD | pressed distillate | | | | Details |
| PD | proposed depth | | | | Details |
| PD | pulsation dampner | | | | Details |
| PD | pumper’s depth | | | | Details |
| PD | Proven Developed | | | | Details |
| PDA | Pressure Decline Analysis | | | | Details |
| PDA | Personnal Digital Assistant | | | | Details |
| PDB | Positive Displacement Dump Bailer | | | | Details |
| PDB | Petronas Dagangan Bhd. Malaysia | | | | 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 |
| PDD | Public Disclosure Document (sets terms for EIA) | | | | Details |
| PDES | Plot Destination | | | | Details |
| PDET | production department exploratory test | | | | Details |
| PDF | Probability Density Function | | | | Details |
| PDF | Portable Data Format (Adobe) | | | | Details |
| PDF | Portable Document Format | | | | Details |
| PDFOS | Performance drilling (Deutag in Kurdiustan) | | | | Details |
| PDG | Permanent Downhole Gauges | | | | Details |
| PDG | permanent downhole gauge | | | | Details |
| PDG/PDHG | Permanent Downhole Gauge | | | | Details |
| PDHG | Permanent Downhole Gauge | | | | Details |
| PDHM | Permanent Down Hole Monitoring | | | | Details |
| PDHMS | Pressure Downhole Monitoring System | | | | Details |
| PDI | pressure differential indicator | | | | Details |
| PDIC | pressure differential indicator controller | | | | Details |
| PDISC | Petroleum Development Integrated Sub-Committee Meeting | | | | Details |
| PDK | PDK-100 | | | | Details |
| PDK | PDK-100® Log | | | | Details |
| PDKL | PDK Log | | | | Details |
| PDKR | PDK 100 Report | | | | Details |
| PDM | Positive Displacement Motor | | | | Details |
| PDMS | Permanent Downhole Monitoring Survey | | | | Details |
| PDMS | Plant Design Management System (software for facility design) | | | | Details |
| PDNP | Proved Developed Not Producing | | | | Details |
| PDO | Petroleum Development Oman | | | | Details |
| PDO | Petroleum Development Oman Oman | | | | Details |
| Pdp | Pressure on drill pipe (normally measured at surface to estimate kick) | | | | Details |
| PDP | Project Development Plan | | | | Details |
| PDP | Proved Developed Producing (US Reserves Term, requires wells etc in place, like Intl P1) | | | | Details |
| PDP | Proved Developed Reserves | | | | Details |
| PDP | Personal Development Plan | | | | Details |
| PDP | professional development plan | | | | Details |
| PDP | Personal Development Program | | | | Details |
| PDP | Professional Development Program | | | | Details |
| PDPM | Power Distribution Protection Module | | | | Details |
| PDPR | Per Day Pro-Rata | | | | Details |
| PDR | Performance Development Review | | | | Details |
| PDR | Geopressure Development Redrill | | | | Details |
| PDR | pressure differential recorder | | | | Details |
| PDR | Pressure Data Report | | | | Details |
| PDRC | pressure differential recorder controller | | | | Details |
| PDS | Schlumberger log file name extension type (need PDSView to read) | | | | Details |
| PDS | Positive Displacement Sampler (slickline tool for BH sampling) | | | | Details |
| PDS | Personnal Development System | | | | Details |
| PDS | Perforation und DrahtService | | | | Details |
| PDS | Pre Development Study | | | | Details |
| PDS | Geo2ressure Development-Success | | | | Details |
| PDS | Collar/Collar Correlation | | | | Details |
| PDS | geopressure development, success | | | | Details |
| PDS | power distribution system | | | | Details |
| pdso | pseudo | | | | Details |
| PDT | Perforation Drahtservice & Techn. | | | | Details |
| PDV | Petroleos de Venezuela (also PDVSA) Venezuela | | | | Details |
| PDVSA | Petroleos de Venezuela S.A. | | | | Details |
| PDVSA | Petroleos de Venezuela Venezuela | | | | Details |
| PDX | Geopressure Development Recompletion | | | | Details |
| PED | Petroleum Engineering & Development | | | | Details |
| PED | pedestal | | | | Details |
| Pedco | Petroleum Development Corporation | | | | Details |
| PEDEC | Petroleum Development and Engineering Company | | | | Details |
| PEDL | Petroleum Exploration and Development Licence (United Kingdom), introduced in the th Onshore Licensing Round | | | | Details |
| PERDC | Perforation Depth Control | | | | Details |
| PETD | Petrographic Data Log | | | | Details |
| PETRO-ECUADOR | Petroleos de Ecuador Ecuador | | | | Details |
| PETRO-INDUSTRIAL | Empresa Estatal de Industrializacion de Petroles del Ecuador Ecuador | | | | Details |
| PETROMED | Petroleos del Mediterraneo Spain | | | | Details |
| PETRO-PRODUCTION | Empresa Estatal de Exploration y Produccion de Petroleos del Ecuador Ecuador | | | | Details |
| PFD | Process Flow Diagram | | | | Details |
| pfd | preferred | | | | Details |
| pg/dscm | picograms per dry standard cubic meter | | | | Details |
| PhD | doctor of philosophy | | | | Details |
| P-HDII | perforating Hyperdome II | | | | Details |
| PHPD | Per Hatch Per Day | | | | Details |
| PID | Piping & Instrumentation Diagram | | | | Details |
| PID | Perforation Inflow Diagnostic (see comment) | | | | Details |
| PID | Project Identification Document | | | | Details |
| PIDEC | Petrochemical Industries and Engineering Company | | | | Details |
| pkg(d) | packing, package(ed) | | | | Details |
| pld | pulled | | | | Details |
| plgd | plugged | | | | Details |
| PMCD | Pressurized Mudcap Drilling | | | | Details |
| pmp(d)(g) | pump(ed)(ing) | | | | Details |
| PND | Pulsed Neutron Decay | | | | Details |
| PNID | process and instrument diagram | | | | Details |
| POD | Plan Of Development | | | | Details |
| POD | Proof Of Delivery | | | | Details |
| POD | Geopressure Development Deepening | | | | Details |
| Pod. | Podbielniak | | | | Details |
| PPD | Pour Point Depressant (see comment) | | | | Details |
| PPD | Permanent Partial Disability | | | | Details |
| ppd | prepaid | | | | Details |
| ppmvd | parts per million by volume, dry basis | | | | Details |
| PRD | pressure relief device | | | | Details |
| prd | period | | | | Details |
| predom | predominant | | | | Details |
| PROD | Production Log | | | | Details |
| prod | produced, producing, production | | | | Details |
| Prod | Production in company name | | | | Details |
| prod | produce(ed)(ing)(tion), product(s) | | | | Details |
| PRODESA | Productos de Estireno, S.A. de C.V. Mexico | | | | Details |
| PSD | Particle Size Distribution | | | | Details |
| PSD | Planned Shut-down | | | | Details |
| PSD | Production Shut Down | | | | Details |
| PSD | Pore Size Distribution (from NMR) | | | | Details |
| PSD | permanently shut down | | | | Details |
| PSD | prevention of significant deterioration, EPA | | | | Details |
| PSD | Prevention Significant Deterioration | | | | Details |
| PSDM | Pre Stack Depth Migration (Seismic) | | | | Details |
| PSDM | Pre-Strack Depth Migration | | | | Details |
| PSDV | Process Shut Down Valve | | | | Details |
| PTD | Permanent Total Disability (see comment) | | | | Details |
| PTD | Permanent Total Disability | | | | Details |
| PTD | proposed (projected) total depth | | | | Details |
| PTD | present total depth | | | | Details |
| PTD | projected total depth | | | | Details |
| PTD | proposed total depth | | | | Details |
| PUD | Proved Un-developed (US Reserves Term, requires plan in place, like Intl P2) | | | | Details |
| PUDP | picking up drillpipe | | | | Details |
| PVDF | thermoplastic fluoropolymer | | | | Details |
| PWD | Pore Pressure While Drilling | | | | Details |
| PWD | Pressure While Drilling | | | | Details |
| PWD | Geopressure Wildcat Deepening | | | | Details |
| PWD | Geopressure Wildcat-Success | | | | Details |
| PWWD | Per Weather Working day | | | | Details |
| Q. sd | Queen Sand | | | | Details |
| QDA | quality discount allowance | | | | Details |
| QDRNT | quadrant | | | | Details |
| QLDT | Slim Xtreme Litho-Density Tool | | | | Details |
| QPDC | Qatar Petroleum Development Company Ltd. | | | | Details |
| Quad | Quadrillion BTU. | | | | Details |
| Quad | Quadrangle | | | | Details |
| quad | quadrant, quadrangle, quadruple | | | | Details |
| R & D | research and development | | | | Details |
| R H DIP | 4 Arm High Resolution Diplog | | | | Details |
| R&D | research and development | | | | Details |
| R&D | Research & Development | | | | Details |
| R/A Grd | Radiation Guard | | | | Details |
| R/D | Rig-down | | | | Details |
| RAD | Rapid Application Development | | | | Details |
| RAD | radioactive densiometer Fluid density measuring device | | | | Details |
| rad | radical | | | | Details |
| rad | radiological | | | | Details |
| rad | radius | | | | Details |
| RADEEC | Regie Autonome Intercommunal de Distribution d’Eau et d’Electricité de la Chaouia | | | | Details |
| RADT | radiant | | | | Details |
| radtn | radiation | | | | Details |
| RAID | Redundant Array of Inexpensive (or Independent) Disks | | | | Details |
| RCD | Rotating Control Device | | | | Details |
| RD | Rupture Disk | | | | Details |
| RD | Relative Density | | | | Details |
| RD | Rig Down | | | | Details |
| RD | redrill | | | | Details |
| RD | redrilled | | | | Details |
| RD | rigged(ing) down | | | | Details |
| rd | road | | | | Details |
| rd | round | | | | Details |
| Rd | Bds red beds | | | | Details |
| rd | thd round thread | | | | Details |
| Rd Fk | Red Fork | | | | Details |
| Rd Pk | Red Peak | | | | Details |
| RD&D | research, development, and demonstration | | | | Details |
| RDB | rotary drive bushing | | | | Details |
| RDB-GD | rotary drive bushing to ground | | | | Details |
| RDBMS | Relational DBMS | | | | Details |
| RDCR | reducer | | | | Details |
| rdd | rounded | | | | Details |
| RDF | Reservoir Drilling Fluid | | | | Details |
| RDFN | rig down for night | | | | Details |
| RDL | Reservoir Data Log | | | | Details |
| RDMO | Rig Down Move Out | | | | Details |
| RDMO | rig down, move off or out | | | | Details |
| RDMO | rigged down, moved out | | | | Details |
| RDS | Reservoir Development Sevises | | | | Details |
| RDS | Reservoir Development Study | | | | Details |
| RDS | Remote Degassing Station | | | | Details |
| RDS | reservoir description service | | | | Details |
| RDSU | rigged-down swabbing unit | | | | Details |
| RDT | Rapid Development Team | | | | Details |
| RDT | Reservoir Description Tool | | | | Details |
| rdtp | round trip | | | | Details |
| RDX | perforating charge explosive Cyclotrimethaylenetrinitramine | | | | Details |
| reacd | reacidize(ed)(ing) | | | | Details |
| recd | received | | | | Details |
| recond | recondition(ed) | | | | Details |
| RED | restriction enhancement drill (under reamer) | | | | Details |
| red | reducing, reducer | | | | Details |
| red | bal reducing balance | | | | Details |
| redrld | redrilled | | | | Details |
| reqd | required | | | | Details |
| resid | residual, residue | | | | Details |
| Ret DST | Retainer Dichtstück | | | | Details |
| retd | returned | | | | Details |
| RetDST | Retainer Dichtstock | | | | Details |
| RFG/BD | refrigeration building | | | | Details |
| RGDS | ReGarDS | | | | Details |
| RHD | righthand door | | | | Details |
| rls(d)(ing) | release(ed)(ing) | | | | Details |
| rmd | reamed | | | | Details |
| RMDB | Reservoir Management Data Base | | | | Details |
| RND | National Democratic Rally | | | | Details |
| rnd | rounded | | | | Details |
| ROD | Record of Decision | | | | Details |
| Rod | Rodessa | | | | Details |
| ROSKO-MNEDRA | Ministry of Fuel & Energy for the Russian Federation Russia | | | | Details |
| RPD | Reserves and Production Division of the EIA | | | | Details |
| rptd | report ed | | | | Details |
| rptd | reported | | | | Details |
| RSD | returnable steel drum | | | | Details |
| RSMD | resumed | | | | Details |
| RTD | resistive thermal device, used for temperature measurement | | | | Details |
| RTD | rotary total depth | | | | Details |
| rtd | retard(ed) | | | | Details |
| RTDT | Real Time Data Transmission | | | | Details |
| rvs(d) | reverse(ed) | | | | Details |
| RWD | RWD Log | | | | Details |
| RWD | Reaming While Drilling | | | | Details |
| RWE-DEA | RWE(Rheinische-Westfalische Electrzitatwerk AG)-DEA AG fur Mineraloel und Chimie Germany | | | | Details |
| rwk(d) | rework(ed) | | | | Details |
| rwkd | reworked | | | | Details |
| S&D | Shoot & Drop | | | | Details |
| Sad | Cr Saddle Creek | | | | Details |
| Sadaf | Saudi Petrochemical Company | | | | Details |
| SADCOP-MAHRUKAT | Syrian Storing and Distributing Co., Petroleum Products Syria | | | | Details |
| sadl | saddle | | | | Details |
| SAF/DPT | safety/department | | | | Details |
| SAGD | Steam Assisted Gravity Drainage | | | | Details |
| SAGD | Steam Assisted Gravity Drive | | | | Details |
| SAGD | steam-assisted gravity drainage | | | | Details |
| SANDA | Sandstone Analysis Log | | | | Details |
| Saudi | Aramco Saudi Arabian Oil Company | | | | Details |
| SAUDI | Saudi Arabian Oil Company ARAMCO Saudi Arabia | | | | Details |
| Saudi Aramco | Saudi Arabian Oil Company | | | | Details |
| Saudia | Saudi Arabian Airlines | | | | Details |
| SBND | Saraband | | | | Details |
| SC DL | slip and cut drill time | | | | Details |
| SCAD | A Supervisory Control & Data Acquisition | | | | Details |
| SCADA | Supervisory Control and Data Acquisition | | | | Details |
| scat(d) | scatter(ed) | | | | Details |
| SCDES | Sidewall Core Description | | | | Details |
| scfd | standard cubic feet per day | | | | Details |
| scfd, | SCFD standard cubic feet per day | | | | Details |
| scr(d) | screw(ed) | | | | Details |
| sctrd | scattered | | | | Details |
| SD | Sonic Density | | | | Details |
| SD | Shot Density | | | | Details |
| SD | Shut Down | | | | Details |
| SD | Sustainable Development | | | | Details |
| SD | Secure Digital | | | | Details |
| SD | Surface Decompression | | | | Details |
| SD | SUDAN | | | | Details |
| sd | sand | | | | Details |
| SD | shut down (upper case) | | | | Details |
| sd & sh | sand and shale | | | | Details |
| SD Ck | side door choke | | | | Details |
| Sd SG | sand showing gas | | | | Details |
| Sd SO | sand showing oil | | | | Details |
| sd, | SD sand | | | | Details |
| SDA | Self Diverting Agent | | | | Details |
| SDA | shut down to acidize | | | | Details |
| SDACS | Surface Data Acquisition and Control System | | | | Details |
| Sdam | Damage skin | | | | Details |
| SDC | Synthetic Dip Curves (1-4) | | | | Details |
| SDCA | Additional Dip Curves | | | | Details |
| SDCK | side door choke | | | | Details |
| sdd | sanded | | | | Details |
| SD-DK | Sub-Domain Dual Permeability | | | | Details |
| SDE | Senior Drilling Engineer | | | | Details |
| SDE | Supervising Drilling Engineer | | | | Details |
| SDF | shut down to fracture | | | | Details |
| SDFD | Shut Down For Day | | | | Details |
| SDFN | Shut Down For Night | | | | Details |
| SDFN | shut-down for the night | | | | Details |
| sdfract | sand fractured | | | | Details |
| sdfract | sandfracked | | | | Details |
| SDG | siding | | | | Details |
| SDHC | Secure Digital High Capacity | | | | Details |
| SDI | Standard Drilling Instruction | | | | Details |
| SDIC | Sonic Dual Induction | | | | Details |
| SDIP | STRATA DIP® | | | | Details |
| SDL | Supplier Document List | | | | Details |
| SDL | Spectral Density Log | | | | Details |
| SDL | shut down to log | | | | Details |
| SDLC | Systems Development Life Cycle | | | | Details |
| SDM | Semi dynamic method | | | | Details |
| SDM/U | Subsea Distribution Module/Unit | | | | Details |
| SDN | SUDAN | | | | Details |
| SDNSC | Slim Density Neutron Standoff Caliper | | | | Details |
| SDO | shut down orders | | | | Details |
| SDO | show of dead oil | | | | Details |
| SDO | shut down for orders | | | | Details |
| SDOF | sand oil fractured | | | | Details |
| sdoilfract | sand-oil fracked | | | | Details |
| SDON | shut down overnight | | | | Details |
| SDP | Service Delivery Plans | | | | Details |
| SDP | Super Deep Penetration | | | | Details |
| SDP | Service Delivery Procedures (SLB Abbre) | | | | Details |
| SDP | set drillpipe | | | | Details |
| SDPA | shut down to plug and abandon | | | | Details |
| SDPBH | SDP Bottom Hole Pressure Report | | | | Details |
| SDPL | shut down for pipeline | | | | Details |
| SDR | size diameter ratio, a common measurement in plastic liner pipe | | | | Details |
| SDR | shut down repairs | | | | Details |
| SDR | shut down for repairs | | | | Details |
| SDRAM | Synchronous Dynamic Random Access Memory | | | | Details |
| SDS | Self Defense System (overpressure defense system of gauges) | | | | Details |
| SDT | Sonic Digital | | | | Details |
| SDT | Step Draw-down Test (sometimes SDDT) | | | | Details |
| SDT | Step Draw-down Test | | | | Details |
| SDT | Array Sonic Log | | | | Details |
| SDT | Long-Spacing Sonic Log | | | | Details |
| sdtkr | sidetrack(ed)(ing) | | | | Details |
| SDU | Subsea Distribution Unit | | | | Details |
| SDU/M | Subsea Distribution Unit/Module | | | | Details |
| SDV | Shun Down Valve | | | | Details |
| SDV | shut down valve | | | | Details |
| SDW | shut down weather | | | | Details |
| SDW | shut down for weather | | | | Details |
| SDWA | Safe Water Drinking Act | | | | Details |
| SDWA | Safe Drinking Water Act | | | | Details |
| SDWL | sidewall core | | | | Details |
| SDWL | sidewall | | | | Details |
| SDWO | shut down awaiting orders | | | | Details |
| sdwtrfract | sand water fractured | | | | Details |
| sdwtrfract | sand-water fracked | | | | Details |
| SDXC | Secure Digital Extended Capacity | | | | Details |
| sdy | sandy | | | | Details |
| sdy | li sandy lime | | | | Details |
| sdy | sh sandy shale | | | | Details |
| Sed | Sediment | | | | Details |
| SED | Six Electrode Dipmeter | | | | Details |
| SED | Six Arm Dipmeter | | | | Details |
| sed | sediment ( s ) | | | | Details |
| sed | sediment(s) | | | | Details |
| SEDAR | System for Electronic Document Analysis and Retrieval | | | | Details |
| SEDHI | Sedimentary History | | | | Details |
| SEDIGAS | Sociedad para el Estudio y Desarrallo de la Industria del Gas S.A. Spain | | | | Details |
| SEDIM | Sedimentology | | | | Details |
| SEDL | Sedimentology Log | | | | Details |
| SEDRE | Sedimentology REport | | | | Details |
| Sedw | Sedwick | | | | Details |
| SELFDISCH | SelfDischarger | | | | Details |
| SESD | Subsea Emergency Shut Down | | | | Details |
| SFD | Saudi Fund for Development | | | | Details |
| SFD | Simultaneous Formation Density | | | | Details |
| SFD | system flow diagram | | | | Details |
| SFL DIL | Dual Induction | | | | Details |
| SG&D | show gas and distillate | | | | Details |
| sgd | signed | | | | Details |
| SHDP | slim-hole drillpipe | | | | Details |
| SHDT | SHDT Log | | | | Details |
| SHDT | Stratigraphic High resolution Dipmeter Tool | | | | Details |
| SHDT | Dual Dipmeter | | | | Details |
| SHDT | Four-Arm Caliber Log | | | | Details |
| SHDT | Inclinometer Survey Directional | | | | Details |
| SHDT | Stratigraphic High-Resolution Dipmeter Log | | | | Details |
| shld | shoulder | | | | Details |
| SID | Standing Instruction for Drillers | | | | Details |
| SID | Single Deck | | | | Details |
| SIDF | Saudi Industrial Development Fund | | | | Details |
| Sidpec | Sidi Kerir Petrochemicals Company | | | | Details |
| SIDPP | Shut-In Drill Pipe Pressure | | | | Details |
| SIDPP | shut in drill pipe pressure | | | | Details |
| SIDSM | Sidewall Sample | | | | Details |
| SIMDUT | Système d'information sur les matières dangereuses utilisées au travail (see WHMIS) | | | | Details |
| SIPD | Shell India Production and Development | | | | Details |
| skr d | sucker rod | | | | Details |
| SLD | Stabilized Litho Density | | | | Details |
| sld | sealed | | | | Details |
| SLDT | Slimhole Litho-Density | | | | Details |
| slnd | solenoid | | | | Details |
| SMDS | Shell Middle Distillate Synthesis | | | | Details |
| Snd | Sandstone | | | | Details |
| SNPD | Sidewall Neutron Tool | | | | Details |
| SOCDET | Sydney Oil Co. Drilling & Exploration Australia | | | | Details |
| sod | gr sodium-based grease | | | | Details |
| SONIDEP | Societe Nigerienne de Produits Petroliers Niger | | | | Details |
| SPD | Service Performance Dependability | | | | Details |
| SPD | Slurry Phase Distilate | | | | Details |
| spd | spud(ded)(der) | | | | Details |
| SPDC | Saudi Petrochemical Development Company | | | | Details |
| spdl | spindle | | | | Details |
| SP-DST | straddle packer drillstem test | | | | Details |
| SPDT | single-pole double throw | | | | Details |
| SPDT | SW single-pole double throw switch | | | | Details |
| SPeD | Spectral Pe Density | | | | Details |
| spkld | speckled | | | | Details |
| sptd | spotted | | | | Details |
| SPUD | Start Production of Unconventional Drilling | | | | Details |
| Spud | Date date actually started drilling | | | | Details |
| sq yd | square yard(s) | | | | Details |
| sqzd | squeezed | | | | Details |
| SRD | Seismic Reference Datum, an imaginary horizontal surface at which TWT is assumed to be zero | | | | Details |
| SRD | Shell Recruitment Day | | | | Details |
| SRD | short radius Drilling | | | | Details |
| SS and C | Same Sea and Country coast | | | | Details |
| SSD | Sliding Side Door | | | | Details |
| SSD | Stabilized Severe Duty (feature of some ESP pumps to handle gas) | | | | Details |
| SSD | Sub Sea Level depth (in Metres or Feet, positive value in downwards direction with respect to the Geoid) | | | | Details |
| SSD | Sliding Sleeve Door | | | | Details |
| SSD | Selective Shutting Device | | | | Details |
| SSD | Sliding Side Door (same as above) | | | | Details |
| SSD | SOUTH SUDAN | | | | Details |
| SSD | subsea disconnect used during drilling a subsea well in case the floating rig moves to an extreme that begins to threaten the shear resistance of the riser or the drill string | | | | Details |
| SSD | Sliding-side-door | | | | Details |
| SSDA | Service Station Dealers of America & Allied Trade | | | | Details |
| SSDD | Same Shit Different Day :) | | | | Details |
| SSTVD | SubSea True Vertical Depth | | | | Details |
| stb/d, | STBPD stock tank barrels per day | | | | Details |
| STBOPD | Stock Tank Barrels Oil Per Day (oil prod rate) | | | | Details |
| STD | Standard | | | | Details |
| STD | sidetrack (ed) | | | | Details |
| std | stand(s)(ing) | | | | Details |
| std(s)(g) | standards | | | | Details |
| stdg | standing | | | | Details |
| STDS | Short Term Drilling Sequence | | | | Details |
| stds | stands | | | | Details |
| stdy | steady | | | | Details |
| stdy | study | | | | Details |
| STDZN | standardization | | | | Details |
| stn(d)(g) | stain(ed)(ing) | | | | Details |
| stncl(d)(g) | stencil(ed)(ing) | | | | Details |
| STOD | South Tunisia Oil Development | | | | Details |
| stpr(d) | stopper(rd) | | | | Details |
| Straddle | Doppel-Packer Anordnung | | | | Details |
| strd | straddle | | | | Details |
| strd | strand(ed) | | | | Details |
| strkd | streaked | | | | Details |
| strtd | straightened | | | | Details |
| STTD | sidetracked total depth | | | | Details |
| sub rnd | sub rounded | | | | Details |
| sub rnd | subrounded | | | | Details |
| subd | subdivision | | | | Details |
| SUMED | Arab Petroleum Pipelines Co. Egypt & others | | | | Details |
| Sund | Sundance | | | | Details |
| supsd | superseded | | | | Details |
| SVWD | Seismic Vision While Drilling | | | | Details |
| SWAD | Salt Water Arrival Draft | | | | Details |
| swbd | swabbed | | | | Details |
| swbd | swabbed, swabbing | | | | Details |
| swbd | switchboard | | | | Details |
| SWD | Salt Water Disposal Well | | | | Details |
| SWD | salt water disposal | | | | Details |
| SWD | saltwater disposal | | | | Details |
| swd | swaged | | | | Details |
| SWDA | Solid Waste Disposal Act | | | | Details |
| SWDD | Salt Water Departure Draft | | | | Details |
| SWDS | saltwater disposal system | | | | Details |
| SWDW | salt water disposal well | | | | Details |
| SWDW | saltwater disposal well | | | | Details |
| SWLD | seal weld | | | | Details |
| SXD | Stabilized Extreme Duty (a feature in ESP pump for solid handling) | | | | Details |
| T(TD) | Tempeature at Bottom Hole | | | | Details |
| T/BRD | terminal board | | | | Details |
| T/sd | top of sand | | | | Details |
| TAD | Tender Assisted Drilling (ie Smedvig) | | | | Details |
| TAD | Torque And Drag | | | | Details |
| TB/BDL | tube bundle | | | | Details |
| tbd | To be defined/determined | | | | Details |
| TBD | Thousand Barrel per Day | | | | Details |
| TBT-DB | Thru Tubing Dump Bailer | | | | Details |
| TCD | CHAD | | | | Details |
| Tcf/d | TCF/D trillion cubic feet per day | | | | Details |
| TCPD | Tubing-Conveyed Perforating Depth | | | | Details |
| TD | Time Depth chart | | | | Details |
| TD | Target Depth | | | | Details |
| TD | Total Depth (depth of the end of the well also a verb, to reach the final depth, used as an acronym in this case) | | | | Details |
| TD | Time Depth seismic conversion | | | | Details |
| TD | Total Depth | | | | Details |
| TD | TRINIDAD AND TOBAGO | | | | Details |
| TD | CHAD | | | | Details |
| TD | total depth measurement or pipe length to the depth Used for displacement calculations | | | | Details |
| TD | Temperature Difference | | | | Details |
| TD | time delay | | | | Details |
| T-D | Time-Depth | | | | Details |
| TDA | Testing data Acquisition | | | | Details |
| TDA | Technology Develoment & Application | | | | Details |
| TDA | Trade and Development Agency | | | | Details |
| TDA | temporary dealer allowance | | | | Details |
| TDC | Technical Design Consultants | | | | Details |
| TDD | Total Depth (Drillers' Depth) | | | | Details |
| TDF | Time Delayed Firing Head | | | | Details |
| TDH | Total Dynamic Head (factor related to pumps) | | | | Details |
| TDH | total dynamic head | | | | Details |
| TDI | temperature differential indicator | | | | Details |
| TDL | Total Depth (wireline depth) | | | | Details |
| TDL | Temperature Difference | | | | Details |
| TDL | Temperature Difference Log | | | | Details |
| TDM | Touch Down Monitoring | | | | Details |
| TDR | temperature differential recorder | | | | Details |
| TDRM | top down reservoir modeling/modeling | | | | Details |
| TDS | Total Dissolved Solids (see comment) | | | | Details |
| TDS | Top Drive System | | | | Details |
| TDS | Total Dissolved Solids | | | | Details |
| TDS | total dissolved solids in a quantity of liquid | | | | Details |
| TDT | TDT Log | | | | Details |
| TDT | Thermal Decay Time | | | | Details |
| TDT | thermal decay time log | | | | Details |
| TDT | Thermal Decay Logging | | | | Details |
| TDT | Thermal Neutron Decay Time Long | | | | Details |
| TDT GR | TDT Gamma Ray Casing Collar Locator Log | | | | Details |
| TDTCP | TDT CPI Log | | | | Details |
| TDTGR | TDT Gamma Ray Casing Collar Locator Log | | | | Details |
| TDT-P | Dual-Burst Thermal Neutron Log | | | | Details |
| THD | thermal hydrodealkylation | | | | Details |
| thd | thread, threaded | | | | Details |
| THLD | Threshholding | | | | Details |
| TIDCO | Tamil Nadu Industrial Development Corporation | | | | Details |
| TLD | Three-Detector Lithology Density | | | | Details |
| TLD | Technical Limit Drilling | | | | Details |
| TMD | Total Measured Depth in a wellbore | | | | Details |
| TMD | total measured depth | | | | Details |
| TMD-L | Thermal Multigate Decay-Lithology | | | | Details |
| tndr | tender | | | | Details |
| TNDT | Thermal Neutron Decay Time | | | | Details |
| TNDTG | Thermal Neutron Decay Time/Gamma Ray Log | | | | Details |
| TOD | The Oil Drum | | | | Details |
| TOD | Time Of Day | | | | Details |
| Tod | Todilto | | | | Details |
| TOFD | Time of first data sample (on seismic trace) | | | | Details |
| tons/cd | tons per calendar day | | | | Details |
| TPD | Ton Per Day | | | | Details |
| TPDC | Tanzanian Petroleum Development Corp. Tanzania | | | | Details |
| TransMed | Trans-Mediterranean Pipeline Company | | | | Details |
| TRANSMED | Transmediterranean Pipeline Co. Ltd. (also TNPC) Algeria | | | | Details |
| TRD | Total Report Data | | | | Details |
| TRD | Data Transmission | | | | Details |
| TRNDC | transducer | | | | Details |
| trt(r)(d)(g) | treat(er)(ed)(ing) | | | | Details |
| TSD | Tubing Seal Divider (Trennstück) | | | | Details |
| TSD | temporarily shutdown | | | | Details |
| tstd | tested | | | | Details |
| TTD | Tempeature at Bottom Hole | | | | Details |
| TTD | through tubing drilling | | | | Details |
| TTRD | Through Tubing Rotary Drilling | | | | Details |
| TVBDF | True Vertical Depth Below Derrick Floor | | | | Details |
| TVD | True Vertical Depth | | | | Details |
| TVDBSL | True Vertical Depth Below Sea Level | | | | Details |
| TVDC | Time Versus Depth Curve (drilling) | | | | Details |
| TVDPB | True Vertical Depth Playback Log | | | | Details |
| TVDSS | True Vertical Depth Sub Sea | | | | Details |
| TVDss | True Vertical Depth sub-sea | | | | Details |
| TVDTR | true vertical depth from the rotary table | | | | Details |
| TVELD | Time and Velocity to Depth | | | | Details |
| UBD | Under-Balanced Drilling | | | | Details |
| UBD | Underbalance Drilling | | | | Details |
| UD | Unclassified deepening | | | | Details |
| UD | under digging | | | | Details |
| UDC | Unit Development Cost | | | | Details |
| UDF | Universal Disk Format | | | | Details |
| UDIP | Ultrasonic Diplog | | | | Details |
| UDW | Ultra Deep Water | | | | Details |
| UFD | utility flow diagram | | | | Details |
| ULSD | Ultra-low sulfur diesel | | | | Details |
| UNCTAD | United Nations Conference on Trade and Development | | | | Details |
| undiff | undifferential | | | | Details |
| UNDP | United Nations Development Program | | | | Details |
| UNLD | unloading | | | | Details |
| UNLDR | unloader | | | | Details |
| UPDC | United Petroleum Development Company | | | | Details |
| USAID | US Agency for International Development | | | | Details |
| USDA | United States Department of Agriculture | | | | Details |
| USDA-FS | U.S. Department of Agriculture-Forest Service | | | | Details |
| USDW | Underground Source of Drinking Water | | | | Details |
| UWILD | Underwater Inspection in Lieu of Dry Docking | | | | Details |
| V/DWG | vendor drawing | | | | Details |
| VCDT | Vienna Canyon Diablo Troilite | | | | Details |
| VD | Vertical Depth | | | | Details |
| VD | Variable Density | | | | Details |
| VDA | Viscous-elastic Diverting Acid | | | | Details |
| VDENL | Variation Density Log | | | | Details |
| VD-GR | Variable Density-Gamma Ray Logging | | | | Details |
| VDL | Variable Density Log | | | | Details |
| VDL | VDL Log (Variable Density Log) | | | | Details |
| VDL | Variable Deck Load (floating rig) | | | | Details |
| VDU | Vacuum Distillation Unit, used in processing bitumen | | | | Details |
| VDU | Visual Display Unit | | | | Details |
| VEDA | Viscoelastic Diverting Agent (used to divert acid in stimulations) | | | | Details |
| Vee door | Vee door | | | | Details |
| Verd | Verdigris | | | | Details |
| VFD | Variable Frequency Drive (part of top drive see comment) | | | | Details |
| VND | Vision Neutron Density | | | | Details |
| Voids | holes, blanks spots or empty areas | | | | Details |
| VOWD | Value Of Work Done | | | | Details |
| VPD | Vessel Pay Dues | | | | Details |
| vrvd | varved | | | | Details |
| VSD | Variable Stage Drive | | | | Details |
| VSD | Variable Speed Drive | | | | Details |
| VSD | Vertical Steam Drive | | | | Details |
| VTDLL | Vertical Thickness Dual Laterolog | | | | Details |
| VTFDC | Vertical Thickness FDC CNL Log | | | | Details |
| w shd | washed | | | | Details |
| W/D | Wash Down | | | | Details |
| Wad | Waddell | | | | Details |
| WaSd | Waltersburg sand | | | | Details |
| WD | water depth | | | | Details |
| WD | Deeper Pool Wildcat | | | | Details |
| WD | water disposal well | | | | Details |
| WD | wiring diagram | | | | Details |
| Wd R | Wind River | | | | Details |
| WDC | Well Design Criteria (The basis document for designing the well) | | | | Details |
| WDD | Water Downhole Density | | | | Details |
| WDD | Deeper Pool Wildcat deepening | | | | Details |
| Wdfd | Woodford | | | | Details |
| WDI | Wind Direction Instrument | | | | Details |
| WDL | Work Days Lost | | | | Details |
| WDL | Well Delivery Limit | | | | Details |
| WDL | Well Deliverability Limit | | | | Details |
| WDLR | Work Days Lost Restricted | | | | Details |
| WDMS | Well Data Management System | | | | Details |
| WDP | Well Data Pack | | | | Details |
| WDR | Deeper Pool Wildcat redrill | | | | Details |
| WDS | Well Data Sheet | | | | Details |
| WDT | Wax Dissolution Temperature | | | | Details |
| WDW | Water Disposal Well | | | | Details |
| WDX | Deeper Pool Wildcat workover | | | | Details |
| WELDA | Well Data Report | | | | Details |
| WFD | New Field Wildcat deepening | | | | Details |
| WFD | new field wildcat, discovery | | | | Details |
| WFD | wildcat field, discovery | | | | Details |
| Wh Sd | white sand | | | | Details |
| wkd | worked | | | | Details |
| wld | welded, welding | | | | Details |
| WLD/DET | welding detail(s) | | | | Details |
| wldr | welder | | | | Details |
| WLDS | WellLink Data Services (Baker Hughes online web based data transfer tool) | | | | Details |
| WLGDP | West Libya Gas Development Project | | | | Details |
| WLMD | wireline measured depth | | | | Details |
| WLTD | wireline total depth | | | | Details |
| WMD | Weapons of Mass Destruction | | | | Details |
| WOD | Waiting On Daylight | | | | Details |
| WOD | Wildcat out post deepening | | | | Details |
| WODP | waiting on drillpipe | | | | Details |
| Wood | Woodside | | | | Details |
| Woodf | Woodford | | | | Details |
| WPD | New Pool Wildcat deepening | | | | Details |
| WPD | new pool wildcat, discovery | | | | Details |
| WRD | Wide Range Distillate | | | | Details |
| WSD | WaveSonic Dipole | | | | Details |
| WSD | Shallower Pool Wildcat deepening | | | | Details |
| WSD | Shallower Pool Wildcat discovery | | | | Details |
| WSD | shallower pool wildcat, discovery | | | | Details |
| WSD | whipstock depth | | | | Details |
| WSDE | Wellsite Drilling Engineer | | | | Details |
| wthr(d) | weather(ed) | | | | Details |
| WWD | Weather Working Days | | | | Details |
| X-bdd(ing) | crossbedded, crossbedding | | | | Details |
| XCDTM | a brand name biopolymer | | | | Details |
| XD | DHEKELIA | | | | Details |
| XDP | Extreme Deep Penetrator | | | | Details |
| XRD | eXperienced hire Recruiting Day | | | | Details |
| XRD | X ray Diffraction | | | | Details |
| XRD | X-Ray Difraction | | | | Details |
| XRD | x-ray diffraction analysis | | | | Details |
| XXD | DHEKELIA | | | | Details |
| yd | yard | | | | Details |
| yd | yard (s) | | | | Details |
| yd | yard(s) | | | | Details |
| YMD | your message of date | | | | Details |
| YTD | Year To Date (see comment) | | | | Details |
| ZADCO | Zakum Development Company | | | | Details |
| ZADCO | Zakum Development Co. Abu Dhabi | | | | Details |
| ZDENP | Density Log | | | | Details |
| ZDL | Compensated Z-Densilog | | | | Details |
| ZDL | Compensated Z-DensilogSM | | | | Details |
| DTS | Distributed Temperature Sensing | | | | Details |
| DAS | Distributed Acoustic Sensing | | | | Details |
| DSS | Distributed Strain Sensing | | | | Details |
| SDA | Surface Data Acquisition | | | | Details |
| STD | Short Term Disability | | | | Details |
| FSTD | Förderstunde (production time) | | | | Details |
| SSSTD | Stillstandstunde | | | | Details |
| ASTD | Ansammlungsstd | | | | Details |
| Vented T-TBPs | Thru-Tubing Bridge Plugs | | | | Details |
| Vented | See Comment | | | | Details |
| Vented plug | See Comment | | | | Details |
| LWDI | Lost Work-day Injury | | | | Details |
| EPDS | Engineering, Procurement, Drilling and Services | | | | Details |
| NIORDC | National Iranian Oil Refining & Distribution Company | | | | Details |
| SAED | Sarvak Azar Engineering and Development | | | | Details |
| IDRO | Iran Development and Reconstruction Organization | | | | Details |
| DSP | Druck Speicer Anlage (Pumping unit) | | | | Details |
| GDB | Gewinung Daten Bank | | | | Details |
| IDM | Innen-durch-messer | | | | Details |
| KDM | Kontrolldorndurchmesser (Casing drift….Drift OD) | | | | Details |
| PDA | Portable Digital Assistant | | | | Details |
| DG | Double Grip | Double grip is a kind of packer | | | Details |
| red | re-dedication | | | | Details |
| DA | Diamond Inner, Gauge & Heel Row Inserts | | | | Details |
| DG | Diamond Gauge Row Inserts | | | | Details |
| DGH | Diamond Gauge and Heel Row Inserts | | | | Details |
| DH | Diamond Heel Row Inserts | | | | Details |
| DI | Diamond Inner Row Inserts | | | | Details |
| DIH | Diamond Inner & Heel Row Inserts | | | | Details |
| DKP | Diamond Premium Shirttail Protection | | | | Details |
| DKPR | Diamond KPR | | | | Details |
| DL | Diamond Lug Pads | | | | Details |
| DN | Diamond Nose | | | | Details |
| DT | Diamond Gage Guard | | | | Details |
| EDF | Elevation, Derrick Floor | | | | Details |
| EPD | Elevation Permanent Datum | | | | Details |
| TDD | Total Depth-Driller | | | | Details |
| TDL | Total Depth-Logger | | | | Details |
| CBD | Casing Bottom Driller | | | | Details |
| DFD | Drilling Fluid Density | | | | Details |
| DFPH | Drilling Fluid Ph | | | | Details |
| DFL | Drilling Fluid Loss | | | | Details |
| DFV | Drilling Fluid Viscosity | | | | Details |
| BSD | Bit Depth | | | | Details |
| RDATE | Run Date | | | | Details |
| DMF | Drilling Measured From | | | | Details |
| DFT | Drilling Fluid Type | | | | Details |
| DB | Digitized by | | | | Details |
| PRODM | Production Method | | | | Details |
| LOGDIR | Logging Direction Up or Down | | | | Details |
| THPD | THP Dynamic psi | | | | Details |
| BHPD | BHP Dynamic psi | | | | Details |
| DCR | Deep Carbonate Revisit | | | | Details |
| AICD | Autonomous Inflow Control Device | | | | Details |
| ADM | Asset Development Manager | | | | Details |
| wdr | Withdrawal | | | | Details |
| DGC | Downhole Gas Compressor | | | | Details |
| GPDC | General Process Design Criteria | | | | Details |
| DAF | Discipline Authority Framework | | | | Details |
| DQAR | Design Quality Assurance Reviews | | | | Details |
| DC | Decision Criteria | | | | Details |
| DP | Dye Penetrant testing | | | | Details |
| FDE | Field Development Economics | | | | Details |
| FDD | Fluvial-dominated deltaic | | | | Details |
| DNP | Did not penetrate | | | | Details |
| ND | No well data | | | | Details |
| PDH | Professional Development Hours | | | | Details |
| DPGWC | Deepest Possible gas water contact | | | | Details |
| DR | Damage Ratio (the ratio of rate without skin to the rate with skin - similar to FE) | | | | Details |
| HCDP | Hydrocarbon Development Planning | | | | Details |
| PTD | Planned Total Depth | | | | Details |
| PTVD | Proposed Total Vertical Depth | | | | Details |
| PTMD | Proposed Total Measured Depth | | | | Details |
| DT | Delta-T (also called Slowness or Interval Transit Time) | | | | Details |
| VSND | Volume of Sand | | | | Details |
| VDOL | Volume of Dolomite | | | | Details |
| MCM/d | Million Cubic Meter per day | | | | Details |
| DPI | Disposable Personal Income | | | | Details |
| EDR | estimated damage ratio | | | | Details |
| PPD | primary pressure derivative | | | | Details |
| DLIS | Digital Log Information Standard | | | | Details |
| HDS | High Definition Surveying | | | | Details |
| DED | Deadhorse Magnetic Observatory | | | | Details |
| HDGM | High Definition Geomagnetic Model | | | | Details |
| DIM | Declination-Inclination Magnetometer | | | | Details |
| PDF | Probability density function | | | | Details |
| ADP | Allowable deviation from plan | | | | Details |
| AD | Allowable deviation | | | | Details |
| NASD | Minimum allowable separation distance | | | | Details |
| GWD | Gas Well Deliquification | | | | Details |
| PD&A | Project Delivery & Assurance | | | | Details |
| DDM | Drawdown Mobility | | | | Details |
| DM | Data Management | | | | Details |
| SNDC | Sand Control | | | | Details |
| SDC | Sellers Delivery Capacity | | | | Details |
| DIFA | Dismantle Inspection and Failure Analysis | | | | Details |
| ASTD | American Society of Training and Development | | | | Details |
| CRD | Constant Rate Drawdown | | | | Details |
| VRD | Variable rate drawdown | | | | Details |
| DPBT | Dual Profile Build-up Test | | | | Details |
| FD | Finance Director | | | | Details |
| DFL | Dynamic Fluid Level | | | | Details |
| DCA | Decline Curve Analysis | | | | Details |
| DC | Decline Curve | | | | Details |
| Di | Decline | | | | Details |
| dem | demontiert | disassembled | | | Details |
| Pd | Pressure Drawdown | | | | Details |
| ISDS | investor state dispute settlement | | | | Details |
| DOJ | Department of Justice | | | | Details |
| BDF | Boundary Dominated Flow | | | | Details |
| IDER | Impulse Derivatve | | | | Details |
| DER | Derivative for Drawdown | | | | Details |
| VDR | Vessel Discharge Ration | | | | Details |
| SEDI | Sediments | | | | Details |
| D&M | DeGolyer and MacNaughton | | | | Details |
| D & M | DeGolyer and MacNaughton | | | | Details |
| Pdyn | Dynamic Pressure | | | | Details |
| DPR | Descipline Peer Review | | | | Details |
| DZD | Algerian Dinar | | | | Details |
| USD | US Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| AMD | Armenian Dram | | | | Details |
| AUD | Australian Dollar | | | | Details |
| BSD | Bahamian Dollar | | | | Details |
| BHD | Bahraini Dinar | | | | Details |
| BDT | Bangladeshi Taka | | | | Details |
| BBD | Barbados Dollar | | | | Details |
| BZD | Belize Dollar | | | | Details |
| BMD | Bermudian Dollar | | | | Details |
| USD | US Dollar | | | | Details |
| BND | Brunei Dollar | | | | Details |
| CAD | Canadian Dollar | | | | Details |
| KYD | Cayman Islands Dollar | | | | Details |
| AUD | Australian Dollar | | | | Details |
| AUD | Australian Dollar | | | | Details |
| CDF | Francs | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| DKK | Danish Krone | | | | Details |
| DJF | Djibouti Franc | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| DOP | Dominican Peso | | | | Details |
| DKK | Danish Krone | | | | Details |
| FJD | Fiji Dollar | | | | Details |
| GMD | Gambian Dalasi | | | | Details |
| DKK | Danish Krone | | | | Details |
| XCD | East Carribean Dollar | | | | Details |
| USD | US Dollar | | | | Details |
| GYD | Guyana Dollar | | | | Details |
| AUD | Australian Dollar | | | | Details |
| HKD | Hong Kong Dollar | | | | Details |
| IDR | Indonesian Rupiah | | | | Details |
| IQD | Iraqi Dinar | | | | Details |
| JMD | Jamaican Dollar | | | | Details |
| JOD | Jordanian Dinar | | | | Details |
| AUD | Australian Dollar | | | | Details |
| KWD | Kuwaiti Dinar | | | | Details |
| LRD | Liberian Dollar | | | | Details |
| LYD | Libyan Dinar | | | | Details |
| MKD | Denar | | | | Details |
| USD | US Dollar | | | | Details |
| USD | US Dollar | | | | Details |
| MDL | Moldovan Leu | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| MAD | Moroccan Dirham | | | | Details |
| NAD | Namibian Dollar | | | | Details |
| AUD | Australian Dollar | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| AUD | Australian Dollar | | | | Details |
| USD | US Dollar | | | | Details |
| USD | US Dollar | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| USD | US Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| XCD | East Caribbean Dollar | | | | Details |
| STD | Dobra | | | | Details |
| RSD | Dinar | | | | Details |
| SGD | Singapore Dollar | | | | Details |
| SBD | Solomon Islands Dollar | | | | Details |
| SDG | Sudanese Pound | | | | Details |
| SRD | Surinam Dollar | | | | Details |
| TWD | Taiwan Dollar | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| TTD | Trinidad and Tobago Dollar | | | | Details |
| TND | Tunisian Dollar | | | | Details |
| USD | US Dollar | | | | Details |
| AUD | Australian Dollar | | | | Details |
| AED | Arab Emirates Dirham | | | | Details |
| USD | US Dollar | | | | Details |
| USD | US Dollar | | | | Details |
| VND | Vietnamese Dong | | | | Details |
| USD | US Dollar | | | | Details |
| USD | US Dollar | | | | Details |
| MAD | Moroccan Dirham | | | | Details |
| ZWD | Zimbabwe Dollar | | | | Details |
| OFID | OPEC Fund for International Development | | | | Details |
| IFAD | International Fund for Agricultural Development | | | | Details |
| MDTC | Multi-Disciplinary Training Course | | | | Details |
| DUC | drilled but uncompleted | | | | Details |
| PHID | density porosity | | | | Details |
| RHOBdry | bulk density of dry clay | | | | Details |
| VSND | volume of sand | | | | Details |
| dc | Dual Completion | | | | Details |
| DA | Druck Analyse | Pressure analysis | | | Details |
| DIF | Dutch infrastructure fund | | | | Details |
| DDR | Deutsche Demokratische Republik | East Germany, formally the German Democratic Republic or GDR | | | Details |
| GDR | German Democratic Republic | East Germany, formally the German Democratic Republic | | | Details |
| DFPD | Dail Flow Per Day | | | | Details |
| DD | Drilling Depth | | | | Details |
| TDL | To Do List | | | | Details |
| NIOPDC | National Iranian Oil Products Distribution Company | | | | Details |
| dat | Table Data | | | | Details |
| dca | Decline Curve Analysis Forecast | | | | Details |
| def | Definition | | | | Details |
| dev | Deviation Data | | | | Details |
| dly | Daily Data | | | | Details |
| grd | Grid | | | | Details |
| mdb | Microsoft Access | | | | Details |
| prd | Monthly Production | | | | Details |
| wbd | Wellbore Diagram | | | | Details |
| Pd | Production Daily | | | | Details |
| TON/D | tonne per day | | | | Details |
| T/D | tonne per day | | | | Details |
| To/D | tonne per day | | | | Details |
| To/D | tonne oil per day | | | | Details |
| m3/d | cubic meter per day | | | | Details |
| m³/d | cubic meter per day | | | | Details |
| DIC | Dissolved Inorganic Carbon | | | | Details |
| RFD | Radioactive Fluid Density | | | | Details |
| DRAD | Drainage Radii | | | | Details |
| DM | DurchMesser | Diameter | | | Details |
| ID | Innen-durch-messer | Inside Diameter | | | Details |
| KD | Kontrolldorndurchmesser | Casing control drift….Drift tool OD | | | Details |
| WD | Wall Diameter | | | | Details |
| WD | Wand Durchmesser | Wall Diameter | | | Details |
| pd | Producing days | | | | Details |
| Bleiabdruck | Impression Block | Impression Block | | | Details |
| DS | Dokumentation und Statistik | | | | Details |
| GDB | Gewinnungsdatenbank | Data Base of OMV | | | Details |
| MLD | Mengen, Leistung, Dokumentation | Measurements, performance, documents | | | Details |
| PD | Production Department | | | | Details |
| UDT | Umwelt- und Deponietechnik | Environment and disposing technology | | | Details |
| DA | Diplom Arbeit | Master Thesis | | | Details |
| GRD | Gross Rate Decrease | | | | Details |
| ID | Injection rate Decrease | | | | Details |
| ID | Injection Decrease | | | | Details |
| DR | Druck | Pressure | | | Details |
| Drrep | Druck Representativ | representative Pressure | | | Details |
| 3DSL | 3 Dimentional Stream Line | | | | Details |
| DEC | Drilling Engineering Center | | | | Details |
| DEC | Drilling Engineering Coordinator | | | | Details |
| DHD | Deep Hole Drilling | | | | Details |
| COD | coefficient of determination | | | | Details |
| DMP | Daily Mud Parameters | | | | Details |
| D/S | Drilling Services | | | | Details |
| DS | Drilling Services | | | | Details |
| TID | Target Injection Differential | | | | Details |
| TRD | Target Rate Deccrease | | | | Details |
| ad | Außendurchmesser | Outside Diameter | | | Details |
| DSB | DruckSchreiber Blatt | Pressure recorder plot (with Barton meter) | | | Details |
| KDM | Kopfdruckmessung | Well Head pressure measurement | | | Details |
| IRD | Injection Rate Decrease | | | | Details |
| ID | Injection Rate Decrease | | | | Details |
| LLdyn | Liquid Level dynamic | | | | Details |
| DDP | Draw Down Pressure | | | | Details |
| MMBC/D | Million Barrels Condensate per day | | | | Details |
| MBC/D | Thousand Barrels Condensate per day | | | | Details |
| BD | Business Development | | | | Details |
| CD | Corporate Development | | | | Details |
| MD | Managing Director | | | | Details |
| DPO | Development & Production Operations | | | | Details |
| Gewinnungsfeld | License to produce | | | | Details |
| Grubenfeld | License to produce (During and before WWII, no production tax applicable) | | | | Details |
| Förderzins | Production tax | | | | Details |
| CWDB | Central Well Database | | | | Details |
| MDMS | Mobile Device Management System | | | | Details |
| MDM | Mobile Device Management | | | | Details |
| DZ | Drehzahl | cycles, rotations (per minute) of a motor | | | Details |
| WCD | Water Cut Decreased | | | | Details |
| ORD | Oil Rate Decrease | | | | Details |
| WRD | Water Rate Decrease | | | | Details |
| dzt | Der zeit | at the moment | | | Details |
| DEPL | Depleted | | | | Details |
| UDEF | Undefined | | | | Details |
| BD | BohrDruck | Weight on Bit | | | Details |
| MD | DrehMoment | Torque | | | Details |
| PDGS | Permanent downhole Gauges | | | | Details |
| ID | Injection Day | | | | Details |
| PDSW | Producing day Single Well | | | | Details |
| RED | Revisions-Extensions & Discoveries | | | | Details |
| IDOF | Intelligent Digital Oil Field | | | | Details |
| DE | Displacement Efficiency | | | | Details |
| WDA | Well Deliveribility Analysis | | | | Details |
| mb/d | Million Barrel per Day | | | | Details |
| BUD | Build-Up using Desuperposition (Slider Method) | | | | Details |
| BU-MDH | Build-Up without Superposition or Desuperposition | | | | 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 |
| 2D | two-dimensional (geophysics) | two-dimensional (geophysics) | zweidimensionale (Geophysik) | deux dimensions (géophysique) | Details |
| 2D | Two dimensional | Two dimensional | Zweidimensionale | bidimensionnelle | Details |
| 3D | Three dimensional (geophysics) | Three dimensional (geophysics) | Dreidimensionale (Geophysik) | Trois dimensions (géophysique) | Details |
| 3D | Three dimensional | Three dimensional | dreidimensionale | Trois dimensions | Details |
| 3D | 3 Dimensional | 3 Dimensional | 3 Dimensional | 3 dimensions | Details |
| 3D | Microseismograph | Micro seismograph | Micro Seismograph | Micro sismographe | Details |
| 3DEX | 3D Induction Logging Service | 3D Induction Logging Service | 3D Induction Logging Service | 3D Induction Logging Service | Details |
| 4D | Multiple Three dimensional's overlapping each other (geophysics) | Multiple Three dimensional's overlapping eachother (geophysics) | Mehrere Dreidimensionale ist überlappende einander (Geophysik) | Multiple Trois dimensions ya eachother chevauchement (géophysique) | Details |
| 4D | Four Dimensional | Four Dimensional | vierdimensionalen | Quatre Dimensional | Details |
| A&D | Acquisition & Divestment | Acquisition & Divestment | Acquisition & Desinvestition | Acquisition & Désinvestissement | Details |
| A/CLD | air cooled | air cooled | luftgekühlt | air conditionné | Details |
| AADE | American Association of Drilling Engineers | American Association of Drilling Engineers | American Association of Drilling Engineers | Association américaine des ingénieurs de forage | 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 |
| abd | abandoned | abandoned | verlassen | abandonné | Details |
| abd loc | abandoned location | abandoned location | verlassenen Standort | emplacement abandonné | Details |
| abd-gw | abandoned gas well | abandoned gas well | verlassene Gasbrunnen | puits abandonné de gaz | Details |
| abd-ogw | abandoned oil & gas well | abandoned oil & gas well | aufgegeben Öl & Gas gut | pétrole et gaz puits abandonné | Details |
| abd-ow | abandoned oil well | abandoned oil well | verlassenen Ölquelle | abandonné puits de pétrole | Details |
| abnd | abandoned | abandoned | verlassen | abandonné | Details |
| abndt | abundant | abundant | reichlich | abondant | Details |
| MMCFG/d | Million Cubic feet of gas per day | | | | Details |
| TVDRT | True Vertical Depth referenced to Rotary Table | | | | Details |
| MDRT | Measured Depth referenced to Rotary Table | | | | Details |
| TVDGL | True Vertical Depth referenced to Ground Level | | | | Details |
| MDGL | Measured Depth referenced to Ground Level | | | | Details |
| DSM | Drilling Supply Manufacturing | | | | Details |
| WMSD | Well Management System Drilling | | | | Details |
| DFELAT | Drill Floor Elevation referenced to Lowest Astronominal Tide | | | | Details |
| TVDLAT | True Vertical Depth referenced to Lowest Astronominal Tide | | | | Details |
| MDLAT | Measured Depth referenced to Lowest Astronominal Tide | | | | Details |
| AHD | Australian Height Datum | | | | Details |
| MDAHD | Measured Depth referenced to Australian Height Datum | | | | Details |
| TVDAHD | True Vertical Depth referenced to Australian Height Datum | | | | Details |
| MDMSL | Measured Depth referenced to Mean Sea Level | | | | Details |
| TVDMSL | True Vertical Depth referenced to Mean Sea Level | | | | Details |
| HCDT | Hydrocarbon Down To | | | | Details |
| STm3/d | Standard cubic meter per day | | | | Details |
| CDP | Carbon Disclosure Project | | | | Details |
| i.d.R. | in der Regel | Generally, as a rule | | | Details |
| i.d.R. | in der Reserve | back up | | | Details |
| idr | in der Regel | Generally, as a rule | | | Details |
| idr | in der Reserve | back up | | | Details |
| DOF | Depth Of Field | | | | Details |
| VDA | Versicherung DatenAuszug | approval of insurance | | | Details |
| z.hd. | zu Händen | for the attention of | | | Details |
| z.hdn. | zu Händen | for the attention of | | | Details |
| DA | Druck Aufbau | | | | Details |
| ADKL | Aderklaa (Geological formation in Austria) | | | | Details |
| ADKLKG | Aderklaa konglomerat (Geological formation in Austria) | Aderklaa Conglomerate | | | Details |
| ADKL.KG | Aderklaa konglomerat (Geological formation in Austria) | Aderklaa Conglomerate | | | Details |
| ADKLS | Aderklaa Schichten (Geological formation in Austria) | Aderklaa bedding | | | Details |
| ADKL.S | Aderklaa Schichten (Geological formation in Austria) | Aderklaa bedding | | | Details |
| DTL | Drilling Time Log | | | | Details |
| DDI | Depletion Drive Index | | | | Details |
| SDI | Segregation Drive Index | | | | Details |
| WDI | Water Drive Index | | | | Details |
| ND | Not Detected | | | | Details |
| PSD | Pump Setting Depth | | | | Details |
| h/d | hour per day | | | | Details |
| D/S | Drill and Slide | | | | Details |
| DPD | Dynamic Pressure Drilling | | | | Details |
| DDSR | Daily Drilling Summary Report | | | | Details |
| STBD | starboard | or Starboard side | | | Details |
| RDP | Reservoir Development Plan | | | | Details |
| FRDP | Field ReDevelopment Plan | | | | 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 |
| D2O | Deuterium oxide, heavy water | | | | Details |
| MUDW | Mud Weight | | | | Details |
| DHP | Down Hole Pressure | | | | Details |
| DHT | Down Hole Temperature | | | | Details |
| DOP | Detailed Operation Procedure | | | | Details |
| DSL | Drilling Section Leader | | | | Details |
| DFIT | Diagnostic Fracture Injection Test | | | | Details |
| IODP | Integrated Ocean Drilling Program | | | | Details |
| ODP | Ocean Drilling Program | | | | Details |
| PDL | Pressure Dependent Leakoff | | | | Details |
| DOV | Delayed Opening Valve | | | | Details |
| SLD | Static Limit Diagram | | | | Details |
| DLD | Dynamic Limit Diagram | | | | Details |
| DRMS | Document and Records Management System | | | | Details |
| RDS | Royal Dutch Shell | | | | Details |
| CDI | Connate Water Compressibility Index | | | | Details |
| PvD | Pressure Versus Depth (plot) | | | | Details |
| DOM | Days Of Month | | | | Details |
| IWDC | Initial Well Design Criteria | | | | Details |
| BWD | Basic Well Design | | | | Details |
| DN | Diameter Nominal | | | | Details |
| SDR | Standard Dimension Rate | | | | Details |
| WD | Wand Dicke | Wall thickness | | | Details |
| DCC | Drilling Center Cockpit | | | | Details |
| Schlucksonde | Schluckbohrung | Disposal well, | | | Details |
| TPD | Tubing Performance Data | | | | Details |
| TVD | Temperature versus Depth | | | | Details |
| WFD | Weatherford | | | | Details |
| KOD | Kockout drum | | | | Details |
| ADR | Accord européen relatif au transport international des marchandises Dangereuses par Route | European Agreement concerning the International Carriage of Dangerous Goods by Road | | | Details |
| HOD | head Of Department | | | | Details |
| RDF | Rotary Drilling floor | | | | Details |
| DMAIC | Define, Measure, Analyze, Improve | | | | Details |
| FDI | Formation Damage Index | | | | Details |
| RDD | Reservoir Description and Dynamics | | | | Details |
| MDO | Marine diesel oil | | | | Details |
| dh | diamond hardness | | | | Details |
| pdm | positive displacement meter | | | | Details |
| PDP | Pump Discharge Pressure | | | | Details |
| DRE | Development Reservoir Engineer | | | | Details |
| Un-De | Undeveloped (resources/reserves) | | | | Details |
| De | Developed (resources/reserves) | | | | Details |
| SDG | Sustainable Development Goals | | | | Details |
| OMPDP | Opportunity Maturation and Project Delivery Process | | | | Details |
| EOD | End of Day | | | | Details |
| MD | Montage Demontage | assembling & disassembling | | | Details |
| PDE | Partial Differential Equation | | | | Details |
| bbl/d.psi | GeoFrame legacy unit | | | | Details |
| (bbl/d)/(c/s) | (barrel per day) per (cycle per second) | | | | Details |
| (bbl/d)/(rev/s) | GeoFrame legacy unit | | | | Details |
| (m3/d)/(c/s) | (cubic meter per day) per (cycle per second) | | | | Details |
| (m3/d)/(rev/s) | GeoFrame legacy unit | | | | 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 |
| (STB/d)/ft/psi | GeoFrame legacy unit | | | | Details |
| (STB/d)/psi | GeoFrame legacy unit | | | | Details |
| d/ft3 | day per thousand cubic feet | | | | Details |
| deg/ft | degree per hundred feet | | | | Details |
| deg/m | degree per hundred meters | | | | Details |
| degC/m | degree celsius per hundred meters | | | | Details |
| degF/ft | degree fahrenheit per hundred feet | | | | Details |
| deg/ft | degree per decafoot | | | | Details |
| deg/m | degree per decameter | | | | Details |
| 1/degC | inverse degree Celsius | | | | Details |
| ADP | Andorran peseta | | | | Details |
| AED | UAE dirham | | | | Details |
| ASECOND | second (angle) | | | | Details |
| AUD | Australian dollar | | | | Details |
| B/DF | barrel per day per foot | | | | Details |
| BB/D | barrel per day | | | | Details |
| bbl.s/(d.c) | (barrel per day) per (cycle per second) | | | | Details |
| bbl/(d.ft) | barrel per day per foot | | | | Details |
| bbl/(d.ft.psi) | barrel per day per foot per (pound per square inch) | | | | Details |
| bbl/(d.kPa) | barrel per day per kilopascal | | | | Details |
| bbl/(d.psi) | barrel per day per (pound per square inch) | | | | Details |
| BBL/D | barrel per day | | | | Details |
| bbl/d | barrel per day | | | | Details |
| bbl/d.ft | GeoFrame legacy unit | | | | Details |
| bbl/d.ft.psi | GeoFrame legacy unit | | | | Details |
| bbl/d.kPa | GeoFrame legacy unit | | | | Details |
| BDFP | barrel per day per foot per (pound per square inch) | | | | Details |
| BDKP | barrel per day per kilopascal | | | | Details |
| BDPS | barrel per day per (pound per square inch) | | | | Details |
| BDT | Bangladesh taka | | | | Details |
| BMD | Burmuda dollar | | | | Details |
| BND | Brunei dollar | | | | Details |
| BSD | Bahamian dollar | | | | Details |
| BSDC | (barrel per day) per (cycle per second) | | | | Details |
| Btu/(h.degF.ft2) | BTU per hour per degree fahrenheit per square foot | | | | Details |
| Btu/h.degF.ft2 | GeoFrame legacy unit | | | | Details |
| CAD | Canadian dollar | | | | Details |
| CD | candela | | | | Details |
| cd | candela | | | | Details |
| D.m | darcy-meter | | | | Details |
| d/1000ft3 | GeoFrame legacy unit | | | | Details |
| D/BB | day per barrel | | | | Details |
| d/bbl | day per barrel | | | | Details |
| D/CM | dyne per centimeter | | | | Details |
| D/DF | degree per decafoot | | | | Details |
| D/DM | degree per decameter | | | | Details |
| D/F | degree per foot | | | | Details |
| D/HF | degree per hundred feet | | | | Details |
| D/HR | degree per hour | | | | Details |
| D/M | degree per meter | | | | Details |
| D/M3 | day per cubic meter | | | | Details |
| d/m3 | day per cubic meter | | | | Details |
| d/MSCF | day per thousand standard cubic feet | | | | Details |
| d/STB | day per standard barrel | | | | Details |
| DA | darcy | | | | Details |
| DAM | darcy-meter | | | | Details |
| daN | decanewton | | | | Details |
| DAPI | API gravity | | | | Details |
| dAPI | API gravity | | | | Details |
| darcy | darcy (GeoFrame legacy unit) | | | | Details |
| DARCY | darcy | | | | Details |
| darcy.m | GeoFrame legacy unit | | | | Details |
| DAYS | day | | | | Details |
| -DB | decibel | | | | Details |
| -dB | decibel | | | | Details |
| dB.mW | decibel milliwatt | | | | Details |
| DB/F | decibel per foot | | | | Details |
| dB/ft | decibel per foot | | | | Details |
| DB/M | decibel per meter | | | | Details |
| dB/m | decibel per meter | | | | Details |
| DBM | decibel milliwatt | | | | 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 |
| DDM | Mark der DDR | | | | Details |
| DECN | decanewton | | | | Details |
| DEG | degree (angle) | | | | Details |
| deg C | degree celsius | | | | Details |
| deg F | degree fahrenheit | | | | Details |
| deg/100ft | degree per hundred feet | | | | Details |
| deg/10ft | degree per ten feet | | | | Details |
| deg/10m | degree per ten meters | | | | Details |
| deg/30m | degree per thirty meters | | | | Details |
| deg/dam | degree per ten meters | | | | Details |
| deg/ft | degree per foot | | | | Details |
| deg/h | degree per hour | | | | Details |
| deg/m | degree per meter | | | | Details |
| dega | degree (angle) | | | | 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 |
| DEGF | degree fahrenheit | | | | Details |
| degF | degree fahrenheit | | | | Details |
| degF/(100 ft) | degree fahrenheit per hundred feet | | | | Details |
| degF/100ft | degree fahrenheit per hundred feet | | | | Details |
| degF/ft | degree fahrenheit per foot | | | | Details |
| degF/h | degree fahrenheit per hour | | | | Details |
| degF/m | degree fahrenheit per meter | | | | Details |
| degF/min | degree fahrenheit per minute | | | | Details |
| degF/psi | degree fahrenheit per pound per square inch | | | | Details |
| degF/s | degree fahrenheit per second | | | | Details |
| degK | degree Kelvin | | | | Details |
| DEGK | kelvin | | | | Details |
| DEGR | degree rankine | | | | Details |
| degR | degree rankine | | | | Details |
| DEGREE | degree (angle) | | | | Details |
| degrees | degree (angle) | | | | Details |
| DEGREES | degree (angle) | | | | Details |
| DEM | Deutsche mark | | | | Details |
| DF/F | degree fahrenheit per foot | | | | Details |
| DFHF | degree fahrenheit per hundred feet | | | | Details |
| DFPH | degree fahrenheit per hour | | | | Details |
| DFPM | degree fahrenheit per minute | | | | Details |
| DFPS | degree fahrenheit per second | | | | Details |
| DG | degree (angle) | | | | Details |
| DGDM | degree per decameter | | | | Details |
| DGFM | degree fahrenheit per meter | | | | Details |
| DK/M | kelvin per meter | | | | Details |
| dm/s | decimeter per second | | | | Details |
| dm3 | cubic decimeter | | | | Details |
| DOP | Dominican peso | | | | Details |
| DYNE | dyne | | | | Details |
| dyne/cm | dyne per centimeter (GeoFrame legacy unit) | | | | Details |
| DYNE/CM | dyne per centimeter | | | | Details |
| F3/D | cubic foot per day | | | | Details |
| FDPI | cubic foot per day per foot per (pound per square inch) | | | | Details |
| ft3/(d.ft.psi) | cubic foot per day per foot per (pound per square inch) | | | | Details |
| FT3/D | cubic foot per day | | | | Details |
| ft3/d | cubic foot per day | | | | Details |
| ft3/d.ft.psi | GeoFrame legacy unit | | | | Details |
| ft3/rad | cubic foot per radian | | | | Details |
| ftGoldCoast | Foot (Gold Coast) | | | | Details |
| g/(m2.d) | gram per square meter per day | | | | Details |
| GM2D | gram per square meter per day | | | | Details |
| GRAD | grad (1/100 of right angle) | | | | Details |
| Grad | gigaradian | | | | Details |
| grad | grad (1/100 of right angle) | | | | Details |
| GRD | Grecian drachma | | | | Details |
| J/(s.degC.m2) | joule per second per degree celsius per square meter | | | | Details |
| JMD | Jamaican dollar | | | | Details |
| KB/D | thousand barrels per day | | | | Details |
| kbbl/d | GeoFrame legacy unit | | | | Details |
| kbbl/d.ft | GeoFrame legacy unit | | | | Details |
| KBFD | thousand (barrel per day)-foot | | | | Details |
| kcal/(h.degC.m2) | kilocalorie per hour per degree celsius per square meter | | | | Details |
| kcd | kilocandela | | | | Details |
| KDAN | ten kilonewton | | | | Details |
| KF2D | thousand cubic feet per day per foot | | | | Details |
| KF3D | thousand cubic feet per day | | | | Details |
| KFDF | thousand cubic feet per day per foot per psi | | | | Details |
| KFDP | thousand cubic feet per day per psi | | | | Details |
| KG/D | kilogram per day | | | | Details |
| kg/d | kilogram per day | | | | Details |
| km.daN | kilometer-decanewton | | | | Details |
| km3/(d.m) | GeoFrame legacy unit | | | | Details |
| km3/d | GeoFrame legacy unit | | | | Details |
| km3/d.m | GeoFrame legacy unit | | | | Details |
| KM3D | thousand cubic meters per day | | | | Details |
| KMDN | kilometer-decanewton | | | | Details |
| KMMD | thousand (cubic meter per day)-meter | | | | Details |
| krad | kiloradian | | | | Details |
| LB/D | pound mass per day | | | | Details |
| lbm/d | pound mass per day | | | | Details |
| m3.s/(d.c) | (cubic meter per day) per (cycle per second) | | | | Details |
| m3/(d.bar) | cubic meter per day per bar | | | | Details |
| m3/(d.kPa) | cubic meter per day per kilopascal | | | | Details |
| m3/(d.m) | cubic meter per day per meter | | | | Details |
| m3/(d.m.bar) | cubic meter per day per meter per bar | | | | Details |
| m3/(d.m.kPa) | cubic meter per day per meter per kilopascal | | | | Details |
| m3/(d.psi) | cubic meter per day per (pound per square inch) | | | | Details |
| m3/d.bar | GeoFrame legacy unit | | | | Details |
| m3/d.kPa | cubic meter per day per kilopascal (GeoFrame legacy unit) | | | | Details |
| M3/D.KPA | cubic meter per day per kilopascal | | | | Details |
| m3/d.m | GeoFrame legacy unit | | | | Details |
| m3/d.m.bar | GeoFrame legacy unit | | | | Details |
| m3/d.m.kPa | GeoFrame legacy unit | | | | Details |
| m3/d.psi | GeoFrame legacy unit | | | | Details |
| m3/rad | cubic meter per radian | | | | Details |
| M3DB | cubic meter per day per bar | | | | Details |
| M3DM | cubic meter per day per meter | | | | Details |
| M3SD | (cubic meter per day) per (cycle per second) | | | | Details |
| MAD | Moroccan dirham | | | | Details |
| MCF/d | thousand cubic feet per day | | | | Details |
| MD | millidarcy | | | | Details |
| mD | millidarcy | | | | Details |
| md.ft | GeoFrame legacy unit | | | | Details |
| mD.ft | millidarcy-foot | | | | Details |
| mD.ft/cP | millidarcy-foot per centipoise | | | | Details |
| md.m | millidarcy-meter (GeoFrame legacy unit) | | | | Details |
| MD.M | millidarcy-meter | | | | Details |
| mD.m | millidarcy-meter | | | | Details |
| mD.m/cP | millidarcy-meter per centipoise | | | | Details |
| mD/cP | millidarcy per centipoise | | | | Details |
| MDBA | cubic meter per day per meter per bar | | | | Details |
| MDCP | millidarcy per centipoise | | | | Details |
| MDF3 | day per thousand cubic feet | | | | Details |
| MDFC | millidarcy-foot per centipoise | | | | Details |
| MDFT | millidarcy-foot | | | | Details |
| MDKP | cubic meter per day per kilopascal | | | | Details |
| MDM | millidarcy-meter | | | | Details |
| MDMC | millidarcy-meter per centipoise | | | | Details |
| MDPA | cubic meter per day per meter per kilopascal | | | | Details |
| MDPS | cubic meter per day per (pound per square inch) | | | | Details |
| MF3D | million cubic feet per day | | | | Details |
| Mft3/d | GeoFrame legacy unit | | | | Details |
| mg/dm3 | milligram per liter | | | | Details |
| MICROSECOND | microsecond | | | | Details |
| MICROSECONDS | microsecond | | | | Details |
| MILLIDARCY | millidarcy | | | | Details |
| MILLISECOND | millisecond | | | | Details |
| MILLISECONDS | millisecond | | | | Details |
| MMSCF/d | GeoFrame legacy unit | | | | Details |
| Mrad | megaradian | | | | Details |
| mrad | milliradian | | | | Details |
| MSCF/d | GeoFrame legacy unit | | | | Details |
| MWDAPI | API gamma ray | | | | Details |
| oersted | GeoFrame legacy unit | | | | Details |
| POUND | pound mass (avoirdupois) | | | | Details |
| POUNDS | pound mass (avoirdupois) | | | | Details |
| PPDK | part per ten thousand | | | | Details |
| ppdk | part per ten thousand | | | | Details |
| RAD | radian | | | | Details |
| rad | radian | | | | Details |
| rad.s/(m.s) | (radian per second) per (meter per second) | | | | Details |
| rad/ft | radian per foot | | | | Details |
| rad/ft3 | radian per cubic foot | | | | Details |
| rad/m | radian per meter | | | | Details |
| rad/m3 | radian per cubic meter | | | | Details |
| rad/s | radian per second | | | | Details |
| RADIAN | radian | | | | Details |
| RADIANS | radian | | | | Details |
| RD/S | radian per second | | | | Details |
| SCF/d | cubic feet per day (GeoFrame legacy unit) | | | | Details |
| SD/H | stand per hour | | | | Details |
| SD/M | stand per minute | | | | Details |
| SDP | Sudanese pound | | | | Details |
| SECOND | second | | | | Details |
| SECONDS | second | | | | Details |
| SGD | Singapore dollar | | | | Details |
| STB/d | barrel per day (GeoFrame legacy unit) | | | | Details |
| STD | Sao Tome and Principe dobra | | | | Details |
| TTD | Trinidad and Tobago dollar | | | | Details |
| TWD | New Taiwan dollar | | | | Details |
| urad | microradian | | | | Details |
| V/DB | volt per decibel | | | | Details |
| V/dB | volt per decibel | | | | Details |
| VND | Vietnamese dong | | | | Details |
| XDR | SDR, international monetary fund | | | | Details |
| YARD | yard | | | | Details |
| yardIndian | Yard (Indian) | | | | Details |
| YARDS | yard | | | | Details |
| yardSears | Yard (Sears) | | | | Details |
| YDD | Yemeni dinar | | | | Details |
| YUD | new Yugoslavian dinar | | | | Details |
| BDCM | Bulk Densitiy compensated (Memory) | | | | Details |
| CDBD | Resistivity Deep Button down from RAB | | | | Details |
| CDBU | Resistivity Deep Button up from RAB | | | | Details |
| CGDN | Grain Density from Core | | | | Details |
| CILD | Deep Induction Conductivity | | | | Details |
| CMBD | Resistivity Medium Button down from RAB | | | | Details |
| CSBD | Resistivity Shallow Button down from RAB | | | | Details |
| CUDC | Conductivity of the Undisturbed Zone at Downhole Conditions | | | | Details |
| CXDC | Conductivity of the Flushed Zone at Downhole Conditions | | | | Details |
| DCAL | Diff.Caliper | | | | Details |
| DRHO | Bulk Density Correction | | | | Details |
| DT | Sonic Transit Time | | | | Details |
| DTL | Long Space Sonic Transit Time | | | | Details |
| DTC | Compressional Wave Slowness | | | | Details |
| DTMETRIC | Delta T Sonic in Meter | | | | Details |
| DTS | Delta T Sonic Shear | | | | Details |
| DTST | Stoneley Wave Slowness | | | | Details |
| HLLD | Deep Resistivity high res. LLD | | | | Details |
| HRLD | Deep Resistivity high res. LLD | | | | Details |
| ILD | Resistivity Deep Induction | | | | Details |
| L004_DS | Resistivity Depth shifted 2.5x2.5 cm BKS/MLW | | | | Details |
| L009_DS | Resistivity Depth shifted 2.5x7.5 cm BKS/MLW | | | | Details |
| LLD | Resistivity Laterolog Deep | | | | Details |
| PHDN | Limestone Dens/Neut porosity | | | | Details |
| RD | Deep Resistivity | | | | Details |
| RD01 | Deep Resistivity (digitized 0-20) | | | | Details |
| RD1 | Deep Resistivity (digitized 0-200) | | | | Details |
| RD10 | Deep Resistivity (digitized 0-2000) | | | | Details |
| RDPH | Deep Phase Resistivity from 2 MHZ frequ. | | | | Details |
| RDPL | Deep Phase Resistivity from 500 KHZ frequ. | | | | Details |
| RDAH | Deep Attenuation Resistivity from 2 MHZ frequ. | | | | Details |
| RDAL | Deep Attenuation Resistivity from 500 KHZ frequ. | | | | Details |
| TVD | True Vertical Depth | | | | Details |
| TVDSS | True Vertical Depth Subsea | | | | Details |
| ZDEN | Bulk density | | | | Details |
| ZDNC | Borehole Size, Mud weight corrected Density | | | | Details |
| BDCM | Bulk Densitiy compensated (Memory) | | | | Details |
| DRHO | Bulk Density Correction | | | | Details |
| DT | Delta T Sonic Transit Time | | | | Details |
| DTCO | Delta T Sonic, Compressional | | | | Details |
| DTS | Delta T Sonic, Acoustic Shear Slowness (Petro Standardlog) | | | | Details |
| HLLD | HALS Laterolog Deep Resistivity | | | | Details |
| RD | Resistivity Deep from Standardlog (Petro Standardlog) | | | | Details |
| TVD | True Vertical Depth | | | | Details |
| TVDSS | True Vertical Depth Subsea | | | | Details |
| CUDC | Conductivity of the Undisturbed Zone at Downhole Conditions | | | | Details |
| CXDC | Conductivity of the Flushed Zone at Downhole Conditions | | | | Details |
| Phi_Den | | | | | Details |
| VDOL | Volume of Dolomite relative to total Volume | | | | Details |
| VDOL_CPX | Volume of Dolomite | | | | Details |
| VSAND | Volume of Sand | | | | Details |
| VSND_CPX | Volume of Sand | | | | Details |
| BD | Business Development | | | | Details |
| DCR | Design & Construction Regulations | | | | Details |
| DCS | Document Control System | | | | Details |
| DM | Development Manager | | | | Details |
| DQAR | Desing Qality assurance Review | | | | Details |
| EDMS | Electronic Data Management System | | | | Details |
| ESD | Emergency Shut Down System | | | | Details |
| HAZID | Hazard Identification | | | | Details |
| ITD | Itent to drill | | | | Details |
| LDs | Liquidated Damages | | | | Details |
| MSDS | Material Safety Data Sheed | | | | Details |
| OSD | Oil Shore Development | | | | Details |
| OTD | Order to Delivery | | | | Details |
| P&ID | Piping and Instrumentation Diagram / Drawing | | | | Details |
| P&ID | Process and Instrumentation Diagramm | | | | Details |
| PDR | Project Development Report | | | | Details |
| PDS | Project Delivery Service | | | | Details |
| PFD | Process Flow Diagram / Drawing | | | | Details |
| TVDSS | Total Vertical Depth Sub Sea | | | | Details |
| abdnt | abundant | | | | Details |
| bd | beds | | | | Details |
| bdd | bedded | | | | Details |
| bdst | boundstone | | | | Details |
| bkgrd | background | | | | Details |
| Cmtd | cemented | | | | Details |
| Condns | condensate | | | | Details |
| decr | decreasingly | | | | Details |
| dense | densely | | | | Details |
| det | detrital | | | | Details |
| dif | diffuse | | | | Details |
| dissem | disseminated | | | | Details |
| dl | dull | | | | Details |
| dolc | dolomitic | | | | Details |
| dp | depth | | | | Details |
| dpg | dipping | | | | Details |
| desagg | desegregated | | | | Details |
| fld | feldspathic | | | | Details |
| hbld | hornblende | | | | Details |
| hdnss | hardness | | | | Details |
| hydcarb | hydrocarbon | | | | Details |
| inclined | inclusious | | | | Details |
| ind | indurated | | | | Details |
| indist | indistinct | | | | Details |
| intbd | interbeded | | | | Details |
| interbed | interbeds | | | | Details |
| intmed | intermediate | | | | Details |
| md | mud | | | | Details |
| mod | moderately | | | | Details |
| pred | predominantly | | | | Details |
| rdst | rudstone | | | | Details |
| resd | residual | | | | Details |
| rpd | rapid | | | | Details |
| red | red | | | | Details |
| rdsh | reddish | | | | Details |
| sd | sand | | | | Details |
| sid | siderite | | | | Details |
| sidc | sideritic | | | | Details |
| sksd | slickensided | | | | Details |
| stnd | stained | | | | Details |
| subrnd | subrounded | | | | Details |
| wld | welded | | | | Details |
| xbed | cross bedded | | | | Details |
| ADM | Asset Development Manager | | | | Details |
| ADM | Architecture Development Process | | | | Details |
| BOEPD | Barrels of Oil Equivalent Per Day | | | | Details |
| CD | Corporate Design | | | | Details |
| CDU | Crude Distillation Unit | | | | Details |
| CMDB | Configuration Management Database | | | | Details |
| D&M | DeGolyer & MacNaughton | | | | Details |
| DA | Design Area | | | | Details |
| DAF | Discipline Authority Framework | | | | Details |
| DAM | Day-Ahead Market | | | | Details |
| DHC | Dry Hole Costs | | | | Details |
| DHC | Down Hole Choke | | | | Details |
| DIMSPT | Data integration management system for Production Technology | | | | Details |
| DLL | Dual Laterolog Log | | | | Details |
| DM | Department Manager | | | | Details |
| DMC | Dynamic Matrix Control | | | | Details |
| DPI | Discounted Profitability Index | | | | Details |
| DPP | Discounted Payback Period | | | | Details |
| DPR | Discipline Peer Review | | | | Details |
| DQ | Decision Quality | | | | Details |
| DYKTA | do you know this abbreviation? | | | | Details |
| EBITD | Earnings before interest, tax and depreciation | | | | Details |
| EBRD | European Bank of Reconstruction and Development | | | | Details |
| EDT | Eastern Daylight Time | | | | Details |
| EDTC | Telemetry Cartridge | | | | Details |
| EOBD | End Of Business Day | | | | Details |
| EOD | End of (the) Day | | | | Details |
| FEED | Front End Engineering & Design | | | | Details |
| FQD | Fuels Quality Directive | | | | Details |
| FRD | Field Re-Development | | | | Details |
| HDD | Horizontal Directional Drilling | | | | Details |
| IASDEO | Identify, Assess, Select, define, Execute, Operate | | | | Details |
| IDM | Idea Management | | | | Details |
| idz | in diesem Zusammenhang / in diesem Zeitraum | | | | Details |
| IGD | Integrated Graduate Development | | | | Details |
| IHRDC | International Human Resource Development Corporation | | | | Details |
| JD | Job Description | | | | Details |
| LWDI | Lost Workday Injury | | | | Details |
| MD | (wo)man-day(s) | | | | Details |
| MDS | Master Data Storage | | | | Details |
| MDT | Measured Depth Thickness | | | | Details |
| NBD | Next Business Day | | | | Details |
| NDA | Non Disclosure Agreement | | | | Details |
| OMPD | Opportunity Maturation & Project Delivery | | | | Details |
| P&ID | Piping and Instrumentation Design | | | | Details |
| PD | Proved Developed Reserves | | | | Details |
| PDO | Plan for Development and Operation | | | | Details |
| PDS | Performance Development System | | | | Details |
| PUD | Proved Undeveloped Reserves | | | | Details |
| RDC | Reserves Definition Committee | | | | Details |
| RED | Revisions, Extensions & Discoveries | | | | Details |
| SED | Six Arm Dipmeter Survey | | | | Details |
| SHDB | Stakeholder Database | | | | Details |
| TBD | To Be Discussed / Defined | | | | Details |
| TD | Total depth drilled | | | | Details |
| TDMS | Technisches Dokumentenmanagementsystem | | | | Details |
| UBD | Underbalanced Drilling | | | | Details |
| UID | Umsatzsteuer Identifikationsnummer | | | | Details |
| VD | Vorstandsdirektor | | | | Details |
| DC | Drill collars | | | | Details |
| DDM | Data & Document Management | | | | Details |
| DDOR | Daily Drilling Operations Report | | | | Details |
| DOE | Department of Environment | | | | Details |
| DOSH | Department of Occupational Safety & Health | | | | Details |
| DP | Drill pipe | | | | Details |
| EDR | Expectation Developed Reserves | | | | Details |
| ETD | Estimated Time of Departure | | | | Details |
| GDC | Gas District Cooling | | | | Details |
| HUD | Hold up depth Deepest depth you can go, as limited by the equipment available | | | | Details |
| HWDP | Heavy Weight Drill Pipe heavier than normal drill pipe | | | | Details |
| L/D | Lay down | | | | Details |
| LND | Learning & Development | | | | Details |
| MDC | Management Development Committee | | | | Details |
| MEDEVAC | Medical Emergency Evacuation | | | | Details |
| MWD | Measuring while drilling gives you GR and Resistivity readings | | | | Details |
| NMDC | Non-magnetic drill collar | | | | Details |
| NSDPP | New Static Drill Pipe Pressure | | | | Details |
| OREDA | Offshore Reliability Data | | | | Details |
| PDC | Polycrystalline Diamond Compact | | | | Details |
| PDL | Pre drilled liner Liner with holes along its length; | | | | Details |
| PMCD | Pressurized mud cap drilling | | | | Details |
| PSDM | Pre-stack Depth Migration | | | | Details |
| R/D | Rig Down | | | | Details |
| SDI | Surface Data Integration | | | | Details |
| SSDI | Sub-Surface Data Integration | | | | Details |
| STD | Section Total Depth | | | | Details |
| Std | Stand | | | | Details |
| TVDBDF | True vertical depth below derrick floor | | | | Details |
| TVDBRT | True vertical depth below rotary table | | | | Details |
| TVDSS | True vertical depth subsea | | | | Details |
| YTD | Year to Date | | | | Details |
| ADR | American Depositary Receipt | | | | Details |
| CDO | Collateralized debt obligation | | | | Details |
| CDM | Change and Data Management | | | | Details |
| CDS | Credit default swap | | | | Details |
| CFD | Contract for difference | | | | Details |
| DDA | Depletion Depreciation Amortization | | | | Details |
| DI | Dispatch information | | | | Details |
| Dir | Director | | | | Details |
| DMA | Direct market access | | | | Details |
| DR | Depositary receipt | | | | Details |
| DSP | Delivery service provider | | | | Details |
| DTP | Do this please | | | | Details |
| DVP | Delivery versus payment | | | | Details |
| DSO | Days Sales Outstanding | | | | Details |
| EBITDA | Earnings before Interest, Taxes, Depreciation, and Amortization | | | | Details |
| EDI | Electronic Data Interchange | | | | Details |
| EOD | End Of the Day | | | | Details |
| ETD | Estimated Time of Delivery | | | | Details |
| FDP | Finance Department | | | | Details |
| GDR | Global depository receipt | | | | Details |
| HRD | Human Resource Development | | | | Details |
| Ltd | Limited Company | | | | Details |
| MSOD | Monthly Statement of Select Operational Data | | | | Details |
| MTD | Month to date | | | | Details |
| NCND | Non Circumvent and Non Disclosure | | | | Details |
| NDA | Non Disclosure Agreement | | | | Details |
| OECD | Organisation for Economic Co operation and Development | | | | Details |
| OIBDA | Operating Income Before Depreciation And Amortization | | | | Details |
| PTD | Project to Date | | | | Details |
| QTD | Quarter to date | | | | Details |
| TBD | To Be Defined | | | | Details |
| VAD | Value Added Distributor | | | | Details |
| YTD | Year to date | | | | Details |
