| Z | Depth, in the geosciences referring to the depth dimension in any x,y,z data. | | | | Details |
| Z | Z factor | | | | Details |
| Z | Vertical axis (depth in res modelling) | | | | Details |
| Z | Z Sonde abzementiert | | | | Details |
| Z | Zeile | Row, line | | | Details |
| GLZ | Gleitzeit|| | flextime | Gleitzeit | flextime | Details |
| anz | Anzahl|| | number | Nummer | nombre | Details |
| ZR | Zielrate|| | target rate | Zielrate | taux cible | Details |
| WBZ | WaschBerg Zone|| | Waschberg Zone | Waschbergzone | Waschberg Zone | Details |
| AVAZ | Amplitude Versus Azimuth | | | | Details |
| AZ | AZERBAIJAN | | | | Details |
| AZ | Arizona | | | | Details |
| az | azimuth | | | | Details |
| AZD | Azimuthal Density | | | | Details |
| AZD | Azimuth Dipfrac | | | | Details |
| AZE | AZERBAIJAN | | | | Details |
| Azi | Azimuth | | | | Details |
| aztrop | Azeotrophic | | | | Details |
| BDZ | Bodendruckzementation | | | | Details |
| BLZ | BELIZE | | | | Details |
| bnz | benzene | | | | Details |
| BUZ | buzzer | | | | Details |
| BZ | Brückenzementation | Plug cementation (balanced cement plug) | | | Details |
| BZ | BELIZE | | | | Details |
| CZ | CZECH REPUBLIC | | | | Details |
| CZ | Canal zone | | | | Details |
| Cz | Carrizo | | | | Details |
| CZDL | Compensated Z-Densilog | | | | Details |
| CZE | CZECH REPUBLIC | | | | Details |
| CZM | Coastal Zone Management | | | | Details |
| CZMA | Coastal Zone Management Act | | | | Details |
| DAZD | Dip and Azimuth Display | | | | Details |
| debutzr | debutanizer | | | | Details |
| deethzr | deethanizer | | | | Details |
| doz | dozen | | | | Details |
| DZ | Druckzementation | Cementing injection | | | Details |
| DZ | Drittelzug | 3 Singles | | | Details |
| DZ | ALGERIA | | | | Details |
| DZA | ALGERIA | | | | Details |
| DZPC | Dair al-Zur Petroleum Company | | | | Details |
| EDZ | Extended Drilling Zone | | | | Details |
| EPZ | Emergency Planning Zone | | | | Details |
| EZ | CZECH REPUBLIC | | | | Details |
| EZIP | Expandable Zonal Inflow Profiler | | | | Details |
| EZSV | EZSV Log | | | | Details |
| EZSVTM | a drillable bridge plug | | | | Details |
| EZV | EZ Valve | | | | Details |
| FIGAZ | Federation de l‘Industrie du Petrole France | | | | Details |
| FLUORAZ | a high performance elastomer for seal assemblies | | | | Details |
| frzr | freezer | | | | Details |
| FZ | Fertigzement | | | | Details |
| FZI | Flow Zone Indicator | | | | Details |
| GAZPROM | RAO Gazprom (former USSR Ministry of Gas Production) Russia | | | | Details |
| GZ | GAZA STRIP | | | | Details |
| GZQ | GAZA STRIP | | | | Details |
| HAZ | Hazard | | | | Details |
| HAZ | Heat-Affected Zone | | | | Details |
| HAZ | Heat Affected Zone | | | | Details |
| HAZ | heat affected zone The area around a weld or other area in the steel that has been modified by heat and, as a result, is more subject to some forms of corrosion | | | | Details |
| haz | hazardous | | | | Details |
| HAZID | Hazard Identification (meeting) | | | | Details |
| HAZIO | Hazard and Operability Analysis | | | | Details |
| HAZOP | Hazardous Operation | | | | Details |
| HAZOP | hazardous operations | | | | Details |
| horiz | horizontal | | | | Details |
| horz | horizontal | | | | Details |
| HZ | Halbzug (2 Singel) | | | | Details |
| HZ | horizontal | | | | Details |
| HZ | Halbzug (2 Si) | | | | Details |
| Hz | Hertz | | | | Details |
| ICIANZ | Imperial Chemical Industries of Australia & New Zealand Ltd. UK | | | | Details |
| IZ | IRAQ | | | | Details |
| KALREZTM | a brand name for a high temperature seal | | | | Details |
| KAZ | KAZAKHSTAN | | | | Details |
| KAZGOSNEDRA | Kazakhstan | | | | Details |
| KGZ | KYRGYZSTAN | | | | Details |
| kHz | kilohertz | | | | Details |
| KZ | kein Zufluß | | | | Details |
| KZ | KAZAKHSTAN | | | | Details |
| MAZ | Multi Azimuth | | | | Details |
| mezz | mezzanine | | | | Details |
| MHz | megahertz(megacycles per second) | | | | Details |
| MOZ | MOZAMBIQUE | | | | Details |
| MZ | MOZAMBIQUE | | | | Details |
| MZ | multizone | | | | Details |
| NAFTOGAZ | Centre de Developpement et d’Application des Techniques Petrolieres et Gaieres Algeria | | | | Details |
| noz | nozzle | | | | Details |
| Nozzle | a shaped orifice for directing fluid flow | | | | Details |
| NZ | NEW ZEALAND | | | | Details |
| NZL | NEW ZEALAND | | | | Details |
| NZOG | New Zealand Oil and Gas Ltd. New Zealand | | | | Details |
| oz | ounce | | | | Details |
| PETROZAIRE | Entreprise Petroliere du Zaire Zaire | | | | Details |
| ptz | quartz | | | | Details |
| PWZ | peripheral wedge zone | | | | Details |
| PZIG | At-Bit Inclination and Gamma Ray | | | | Details |
| PZOF | Presentation Zone Offset used in the computation of interpretation zone (PLT interpretation) | | | | Details |
| qtz | quartz, quartzite, quartzitic | | | | Details |
| qtzose | quartzose | | | | Details |
| QZ | AKROTIRI | | | | Details |
| RAZ | Rich Azimuth | | | | Details |
| Razi | al- The Saudi Methanol Company | | | | Details |
| REZ | Renewable Energy Zone (United Kingdom) | | | | Details |
| RIZ | resistivity invaded zone | | | | Details |
| ROZ | Recoverable Oil Zone | | | | Details |
| ROZ | residual oil zones | | | | Details |
| SOMALGAZ | Societe Mixte Algerienne de Gaz Algeria | | | | Details |
| SONELGAZ | Societe Nationale d’Electricite et du Gaz Algeria | | | | Details |
| SPEZ | Sepcial Petrochemical Economic Zone | | | | Details |
| sqz | squeeze | | | | Details |
| sqz | squeeze(ed)(ing) | | | | Details |
| sqzd | squeezed | | | | Details |
| STDZN | standardization | | | | Details |
| SWZ | SWAZILAND | | | | Details |
| SZ | Sack Zement | | | | Details |
| SZ | SWITZERLAND | | | | Details |
| SZ | SWAZILAND | | | | Details |
| sz | size | | | | Details |
| SZAFCO | South Zaafarana Oil Company | | | | Details |
| TZ | Transition Zone | | | | Details |
| TZ | TANZANIA, UNITED REPUBLIC OF | | | | Details |
| TZA | TANZANIA, UNITED REPUBLIC OF | | | | Details |
| UZ | UZBEKISTAN | | | | Details |
| UZB | UZBEKISTAN | | | | Details |
| WAZ | Wide Azimuth | | | | Details |
| WZ | SWAZILAND | | | | Details |
| XGZ | GAZA STRIP | | | | Details |
| XQZ | AKROTIRI | | | | Details |
| Yz | Yazoo | | | | Details |
| Z list | OSHA list of hazardous chemicals (29 CFR 1910 Subpart Z, Worker Right-To-Know) | | | | Details |
| ZA | Zementieraggregat | cement unit | | | Details |
| ZA | ZAMBIA | | | | Details |
| ZA | SOUTH AFRICA | | | | Details |
| ZADCO | Zakum Development Company | | | | Details |
| ZADCO | Zakum Development Co. Abu Dhabi | | | | Details |
| ZAF | SOUTH AFRICA | | | | Details |
| ZAO | BNK CJSC Baltiskaya Nefteprevalochnaya Kompaniya Russia | | | | Details |
| ZB | Zementbrücke | Balanced cement plug | | | Details |
| ZDENP | Density Log | | | | Details |
| ZDL | Compensated Z-Densilog | | | | Details |
| ZDL | Compensated Z-DensilogSM | | | | Details |
| zen | zenith | | | | Details |
| ZHI | al-Zamil Heavy Industries | | | | Details |
| ZI | ZIMBABWE | | | | Details |
| Zil | Zilpha | | | | Details |
| ZK | Zementkopf | Top cement | | | Details |
| ZKB | Zementkopfbestimmung | Top cement determination | | | Details |
| ZM | ZAMBIA | | | | Details |
| ZMB | ZAMBIA | | | | Details |
| ZN | zinc | | | | Details |
| Zn | zon | | | | Details |
| ZnCl2 | zinc chloride | | | | Details |
| ZOI | Zone Of Interest | | | | Details |
| ZOI | Zone Of Influence | | | | Details |
| ZOK | Zement OberKante (can be obtained from Temp. Log or CBL) | | | | Details |
| ZP | Zusatzperforation | | | | Details |
| ZRCC | Zhenhai Refining&Chemical Co. Ltd. China | | | | Details |
| ZS | Zementsohle | cement top inside casing | | | Details |
| ZQ | Zementqualität | Cement Quality | | | Details |
| ZUK | Zementunterkante | | | | Details |
| ZW | ZIMBABWE | | | | Details |
| ZWE | ZIMBABWE | | | | Details |
| H2Zero | See OCPS | | | | Details |
| SiZi | Sitzung Zimmer (meeting room) | | | | Details |
| NZ | NACH / ZUSATZPERFORATION (type of perforation, two times perforated w/ gun and then additional perforation added to the original interval e.g. P120 512-515m "two times perforated" and then 0.6m added coming to 512-515.6m | | | | Details |
| KFZ | Kraftfahrzeug | | | | Details |
| NAZ | Normalarbeitszeit | | | | Details |
| FNAZ | fiktive Normalarbeitszeit | | | | Details |
| SAZ | Sollarbeitszeit | | | | Details |
| ZOS | Zuordnungsschlüssel | | | | Details |
| EXZ | Exzenterschneckenpumpe | | | | Details |
| ANZ | Australasia New zealand region | | | | Details |
| AFZ | Anfang Fließzeit | | | | Details |
| EFZ | Ende Fließzeit | | | | Details |
| DZD | Algerian Dinar | | | | Details |
| AZN | Azerbaijan New Manat | | | | Details |
| BZD | Belize Dollar | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| CZK | Czech Koruna | | | | Details |
| KZT | Kazakhstan Tenge | | | | Details |
| MZN | Mozambique Metical | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| ZAR | South African Rand | | | | Details |
| SZL | Swaziland Lilangeni | | | | Details |
| TZS | Tanzanian Shilling | | | | Details |
| NZD | New Zealand Dollar | | | | Details |
| UZS | Uzbekistan Sum | | | | Details |
| ZMW | Zambian Kwacha | | | | Details |
| ZWD | Zimbabwe Dollar | | | | Details |
| ZUFL | Zufluß | medium, effluent | | | Details |
| ZT | zum Teil | Partly | | | Details |
| z.T. | zum Teil | Partly | | | Details |
| zT: | zum Teil | Partly | | | Details |
| GLZ | Gleitzeit | Flexitime | | | Details |
| anz | Anzahl | number, number of, | | | Details |
| ZR | Zielrate | Target rate | | | Details |
| WBZ | WaschBerg Zone | | | | Details |
| Förderzins | Production tax | | | | Details |
| DZ | Drehzahl | cycles, rotations (per minute) of a motor | | | Details |
| dzt | Der zeit | at the moment | | | Details |
| z.H.v. | zu Händen von | for the attention of | | | Details |
| zhv | zu Händen von | for the attention of | | | Details |
| ZH | zu Händen | for the attention of | | | Details |
| z.H. | zu Händen | for the attention of | | | Details |
| z.hd. | zu Händen | for the attention of | | | Details |
| z.hdn. | zu Händen | for the attention of | | | Details |
| SSZ | SandSchaler Zone (Mittle Baden) (Geological formation in Austria) | Sand Basin zone | | | Details |
| TRZ | Turbinenradgaszähler | Spinner type flow meter | | | Details |
| USZ | Ultraschallgaszähler | ultrasonic type flow meter | | | Details |
| EAZ | Emergency Awareness Zone | | | | Details |
| EPZ | Emergency Planning Zone | | | | Details |
| HAZAN | Hazard Analysis | | | | Details |
| HAZAS | Hazard Assassment | | | | Details |
| ZGT | Zentrale Gastrocknung | Central gas dehydration Unit | | | Details |
| Zapfen | pin (tubular pin) | pin (tubular pin) | | | Details |
| GHz | gigahertz | | | | Details |
| MHz | megahertz | | | | Details |
| MHZ | megahertz | | | | Details |
| mHz | millihertz | | | | Details |
| MLHZ | millihertz | | | | Details |
| MZM | Mozambique metical | | | | Details |
| ozf | ounce force | | | | Details |
| ozm | ounce mass | | | | Details |
| PLZ | Polish zloty | | | | Details |
| UHZ | microhertz | | | | Details |
| uHz | microhertz | | | | Details |
| ZMK | Zambian kwacha | | | | Details |
| ZRZ | Zaire zaire | | | | Details |
| PEFZ | Photoelectric Factor | | | | Details |
| RHOZ | Bulk density | | | | Details |
| RXOZ | Resistivity 2in sampled computed Rxo | | | | Details |
| ZCOR | Density correction | | | | Details |
| ZDEN | Bulk density | | | | Details |
| ZDNC | Borehole Size, Mud weight corrected Density | | | | Details |
| PEFZ | HRDD Standard Resolution Formation Photoelectric Factor | | | | Details |
| RHOZ | HRDD Standard Resolution Formation Density | | | | Details |
| RXOZ | Invaded Formation Resistivity filtered at 18 inches | | | | Details |
| UZ | Volumetric Photoelectric Factor | | | | Details |
| HAZID | Hazard Identification | | | | Details |
| qtz | quartz | | | | Details |
| qtzs | quartzose | | | | Details |
| zoo | zoophycus | | | | Details |
| BKZ | Betriebskosten Zuschuss | | | | Details |
| EZB | Europäische Zentralbank | | | | Details |
| HAZOP | Operational Hazards | | | | Details |
| idz | in diesem Zusammenhang / in diesem Zeitraum | | | | Details |
| HAZOP | Hazard and Operability Study | | | | Details |
| zcyc | Zero Coupon Yield Curve | | | | Details |
| ZOPA | Zone of Possible Agreement | | | | Details |
