List of oil field acronyms

#

2D - Two dimensional (geophysics)
2P - Proved and Probable Reserves
3C - Three components seismic acquisition (x,y and z)
3D - Three dimensional (geophysics)
3DATW - 3 Dimension All The Way
3P - Proved, Probable and Possible Reserves
4D - Multiple Three dimensional's overlapping each other (geophysics)
7P - Prior Preparation and Precaution Prevents Piss Poor Performance, also Prior Proper Planning Prevents Piss Poor Performance

A

A&D - Acquisition & Divestment
AADE - American Association of Drilling Engineers ^[1]
AAPG - American Association of Petroleum Geologists^[2]
AAODC - American Association of Oilwell Drilling Contractors (obsolete; superseded by IADC)
AAR - After Action Review (What went right/wrong, dif next time)
AAV - Annulus Access Valve
ABAN - Abandonment, (also as AB)
ABCM - Activity Based Costing Model
AbEx - Abandonment Expense
ACHE - Air Cooled Heat Exchanger
ACOU - Acoustic
ACQ - Annual Contract Quantity (in reference to gas sales)
ACQU - Acquisition Log
ACV - Approved/Authorized Contract Value
AD - Assistant Driller
ADE - Asphaltene Deposition Envelop
ADROC - Advanced Rock Properties Report
ADN - Azimuthal Density Neutron (Schlumberger)
ADT - Applied Drilling Technology, ADT Log
AFC - Approved For Construction
AFE - Authorization for Expenditure, a process of submitting a business proposal to investors
AFLD - Annular Fluid Loss Device (ie Halliburton's Twin Flow tool)
AFP - Active Fire Protection
AFPR - Annual Field Perf Review
AGRU - Acid Gas Removal Unit
AH - Along hole
AHBDF - Along Hole (Depth) Below Derrick Floor
AHD - Along Hole Depth
AHV - Anchor Handling Vessel
AI - Accoustic Impedance
AI - Artificial Intellince
AIMS - Asset Integrity Management System
AIP - Annular Isolation Packer
AIRG - Airgun
AIRRE - Airgun Report
AIS - Annular Isolation System (Completions)
AIT - Array Induction Tool
AL - Appraisal Licence (United Kingdom), a type of onshore licence issued before 1996
AL - Artificial lift
AKO - Adjustable Kick Off
ALARP - As Low As Reasonably Practicable
ALC - Vertical Seismic Profile Acoustic Log Calibration Report
ALD - Azimuthal Litho Density (logging control)
ALR - Acoustic Log Report
aMDEA - activated Methyldiethanolamine
AMS - Auxiliary Measurement Service Log
AMSL - Above Mean Sea Level
AMV - Annulus Master Valve ^[3]
ANACO - Analysis of Core Logs Report
ANARE - Analysis Report
Anhy - Anhydrite
ANP - Agency National Petroleum for Brazil
ANSI - American National Standards Institute
AOB - Any Other Business
AOF - Absolute Open Flow
AOFP - Absolute Open Flow Potential
AOI - Area Of Interest
AoO - Area of Operation
AOP - Asset Open Plan
AOP - Asphaltene Onset Pressure
APD - Application for Permit to Drill
API - American Petroleum Institute: both the organisation and measure of oil weight (API gravity) in ºAPI
APPRE - Appraisal Report
APWD - Annular Pressure While Drilling
APS - Active Pipe Support
AR - Attraction & Recruitment (HR Dept)
ARC - Array Restistivity Compensated tool (LWD)
ARACL - Array Acoustic Log
ARESV - Analysis of Reservoir
ARI - Azimuthal Resistivity Image
ARPR - Annual Report of Petroleum Resources (Reserves)
ARRC - Array Acoustic Report
ART - Acid Response Test
ART - Actuator Running Tool
AS - Array Sonic Processing Log
ASA - Advanced Safety Auditing (Shell/BP system)
ASC - Affiliated Services Contract
ASD - Acoustic Sand Detection
ASI - ASI Log
ASME - American Society of Mechanical Engineers
ASP - Array Sonic Processing Report
ASP - Alkaline Surfactant Polymer
ASTM - American Society for Testing and Materials
ASCSSV - Annulus Surface Controlled Sub-Surface Valve ^[3]
ASV - Annular Safety Valve
ASV - Annular Sliding Valve
ATD - Application To Drill
AUV -Autonomous Underwater Vehicle
AV - Annular Velocity or Apparent Viscosity
AVO - Amplitude Versus Offset (geophysics)
AWB/V - Annulus Wing Block/Valve (XT)
AWO - Approval for Well Operation
AWV - Annulus Wing Valve
Azi - Azimuth

B

BOSIET - Basic Offshore Safety Induction and Emergency Training
B or b - prefix denoting a number in billions
B2B - Back to Basics
BAA - Business Area Alignment
bbl - barrel
BBSM - Behavioural Based Safety Management
Bcf - billion cubic feet (of natural gas)
Bcfe - billion cubic feet (of natural gas equivalent)
BCS - Ballast Control Supervisor
BD - Blow Down
BDF - Below Derrick Floor
BDL - Bit Data Log
BF - Boundary Fault
BfD - Basis for Design (Facility Doc)
BFI - Business Frames Implementation
Bg - Gas Formation Volume Factor
BGG - Back Ground Gas (reading in mud)
BGL - Below ground level (used as a datum for depths in a well)
BGL - Borehole Geometry Log
BGS - British Geological Survey
BGT - Borehole Geometry Tool
BGWP - Base of Ground Water Protection
BH - Bloodhound
BHA - Bottom Hole Assembly (toolstring on coiled tubing or drill pipe)
BHC - BHC Gamma Ray Log
BHCA - BHC Acoustic Log
BHCS - BHC Sonic Log
BHCT - Bottomhole Circulating Temperature
BHI - Baker Hughes Inteq
BHI - Baker Hughes International
BHI - Bore Hole Image (logging tool)
BHL - Borehole Log
BHN - Brunel Hardness Number
BHP - Bottom Hole Pressure
BHPG - Bottom Hole Pressure Gauge
BHPRP - Borehole Pressure Report
BHS - Bore Hole Stability
BHSRE - Bottom Hole Sampling Report
BHSS - Borehole Seismic Survey
BHT - Bottom Hole Temperature
BHT - Bottomhole Temperature
BHTV - Borehole Television Report
BINXQ - Bond Index Quicklook Log
BIOR - Biostratigraphic Range Log
BIORE - Biostratigraphy Study Report
BIVDL - BI/DK/WF/Casing Collar Locator/Gamma Ray Log
BLC - Big Lever Club (Contracting)
BLI - Bottom of Logging Interval
BML - Below Mud Line (Subsea measurement)
BMOP - Build Model On Paper
BMSL - Below Mean Sea Level
BO - Back Off Log
BO - Break Out
Bo - Oil Formation Volume Factor in Rb/STB
BOB - Back on bottom
BODF - Below Original Drill Floor
boe - barrel(s) of oil equivalent
boed - barrel(s) of oil equivalent per day
BOEMRE - Bureau of Ocean Energy Management, Regulation and Enforcement
boepd - barrel(s) of oil equivalent per day
BOL - Back On Line
BOM - Bill of Materials
BOM - Business Opportunity Manager
BOP - Blowout Preventer
BOP - Bottom of Pipe
bopd - barrel(s) of oil per day
BOREH - Borehole Seismic Analysis
BOS - Bottom Of Screen
BOT - Baker Oil Tools
BOTHL - Bottom Hole Locator Log
BOTTO - Bottom Hole Pressure/Temperature Report
BP - Before Present (age)
BP - Best Practice
BP - Bridge Plug
BP - British Petroleum
BP - Business Plan
bpd - barrels per day
BPFL - Borehole Profile Log
BPH - Barrels Per Hour
BPLUG - Baker Plug
BPM - Barrels Per Minute
BPV - Back Pressure Valve (goes on the end of coiled tubing a drill pipe tool strings to prevent fluid flow in the wrong direction)
BPWA - Beam Pump Well Analyzer (Dyno & FL)
BQL - B/QL Log
BRPLG - Bridge Plug Log
BRT - Below Rotary Table (used as a datum for depths in a well)
BS - Bit Size
BS&W - BSW - Base/Bottom Sediments & Water
BSCF - Billion Standard Cubic Feet
BSEE - US: Bureau of Safety and Environmental Enforcement (Formerly the MMS)
BSP - Brunei Shell Petroleum Company Sendirian Berhad
BSPD - Barrels Steam Per Day
BSR - Blind Shear Rams (Blowout Preventer)
BSR - Bottom Simulating Reflector (seismic)
BTC - Best Technical Case
BTEX - Benzene, Toluene, Ethyl-Benzene and Xylene
BTHF - Below Tubing Head Flange
BTHL - Bottom Hole Log
BTM - Business Technology Mapping
BTO/C - Break to Open/Close (valve torque)
BTU - British Thermal Units
BU - Bottoms Up
BUL - Bottom Up Lag
BUR - Build Up Rate (drilling)
BVO - Ball Valve Operator
BVS - Block Valve isolation Station (for main PL's)
Bw - Water Formation Volume Factor
bwd - barrels of water per day (often used in reference to oil production)
BWIPD - Barrels Water Injection Per Day
bwpd - barrels of water per day

C

C&C - Circulate & Condition (ie mud)
C&E - Well completion and equipment cost
C&K - Choke & Kill (BOPs)
C&P - Cased & Perfed (completion type)
C&S - Cased and Suspended
C/B - Crew Boat
C/W - Complete With
C1 - Methane
C2 - Ethane
C3 - Propane
C4 - Butane
C6 - Hexanes
C7+ - Heavy Hydrocarbon Components
CA - Core Analysis Log
CALD - Caliper interpreted from Density
CALI - Caliper Log
CALOG - Circumferential Acoustic Log
CALVE - Calibrated Velocity Log Data
CAM - Contract Accountable Manager
CAO - Computer Aided Operations
CAPP - Canadian Association of Petroleum Producers
CAR - Company Appointed Representative
CAR - Corrective Action Request
CART - Cam Actuated Running Tool (Housing Running Tool)
CAS - Casing Log
CAST - Circumfrential Accoustic Tool (HES)
CATe - Core Asset Team
CATT - Capabilities & Technology Team
CB - Core Barrel
CB - Crew Boat
CBD - Competence Based Development
CBIL - CBIL Log
CBL - Cement Bond Log (measurement of casing cement integrity)
CBL - Cement Bond Log
CBM - Choke Bridge Module - XT Choke
CBM - Coal Bed Methane
CBM - Conventional Buoy Mooring
CBP - Composite Bridge Plug
CBU - Circulate Bottoms Up
CBW - Clay Bound Water
CC - Carbon Copy
CCA - Conventional Core Analysis
CCF - Cost Carry Forward
CCHT - Core Chart Log
CCL - Casing Collar Locator (in perforation or completion operations, the tool provides depths by correlation of the casing string's magnetic anomaly with known casing features)
CCLP - Casing Collar Locator Perforation
CCLTP - Casing Collar Locator Through Tubing Plug
CCR - Change Control Request
CCRT - Coct Control Reporting Tool (SAP Report)
CCS - Carbon Capture & Sequestration
CCT - Closed Chamber Test
CD - Chart Datum
CD - Core Description
CDATA - Core Data
CDIS - CDI Synthetic Seismic Log
CDP - Common Depth Point (geophysics)
CDP - Comprehensive Drilling Plan
CDRCL - Compensated Dual Resistivity Cal. Log
CDRT - Completion Design Review Team
CDS - Completion Data System
CDU - Control Distribution Unit
CDV - Critical Development Volume
CE - CE Log
CE - Civil Engineer
CE - Completion Engineer
CE - Corrosion Engineer
CECAN - CEC Analysis
CEME - Cement Evaluation
CEP - Current Estimated Potential
CERE - Cement Remedial Log
CET - Cement Evaluation Tool
CF - Completion Fluid
CFA - Compositional Fluid Analizer
CFD - Computational Fluid Dynamics
CG - Contents Guideline
CGEL - CG EL Log
CGL - Core Gamma Log
CGOC - Current Gas Oil Contact
CGPH - Core Graph Log
CGR - Condensate gas ratio
CGTL - Compact Gas to liquids (production equipment small enough to fit on a ship)
CGWC - Current Gas Water Contact
CH - Cased Hole
CHCNC - CHCNC Gamma Ray Casing Collar Locator
CHDTP - Caliper HDT Playback Log
CHECK - Checkshot and Acoustic Calibration Report
CHESM - Contractor, Health, Environment and Safety Management
CHFP - Cased Hole Frac Pack
CHH - Casing Head Hanger
CHKSR - Checkshot Survey Report
CHKSS - Checkshot Survey Log
CHOPS - Cold Heavy Oil Production with Sand
CHP - Casing Hanger Pressure (pressure in an annulus as measured at the casing hanger)
CHROM - Chromatolog
CHRT - Casing Hanger Running Tool
CI - Chemical Injection
CI - Competitive Intelligence
CI - Corrosion Inhibiter
CIBP - Cast Iron Bridge Plug
CICHP - Closed In Casing Head Pressure
CIDPP - Closed In Drill Pipe Pressure
CIIP - Condensate Initially In Place (Gas Cap/Res)
CILD - Conduction Log
CIM - Chemical Injection Mandrel/Manifold
CIMV - Chemical Injection Metering Valve
CIN - Common Interest Network (system on Shell Global Networks)
CIRP - Schlumberger's Completion Insertion and Retrieval under Pressure, (snap lock guns)
CITHP - Closed In Tubing Head Pressure (tubing head pressure when the well is shut in)
CIV - Chemical Injection Valve
CIW - Cameron Iron Works
CIW - Concept Identific
CL - Core Log
CLG - Core Log and Graph
Clyst - Claystone
CM - Choke Module
Cm - Compaction Coefficient
CMM - Corporate Management Manual
CMP - Common Midpoint (geophysics)
CMR - Combinable Magnetic Resonance (Schlumberger NMR type logging tool)
CMR - CMR Log
CMS - Corporate Management System
Cmt - Cement
CNCF - Field Normalized Compensated Neutron Porosity
CND - Compensated Neutron Density
CNFDP - CNFD True Vertical Depth Playback Log
CNG - Compressed Natural Gas www.coselle.com
CNGR - Compensated Neutron Gamma Ray Log
CNL - Compensated Neutron Log
CNLFD - CNL/FDC Log
CNS - Central North Sea
CNSOPB - Canada Nova Scotia Offshore Petroleum Board
CO - Change Out (ex. from rod equipment to casing equipment)
COB - Close Of Business
COE - Centre of Excellence
COL - Collar Log
COMAN - Compositional Analysis
COML - Compaction Log
COMP - Composite Log
COMPR - Completion Program Report
COMPU - Computest Report
COMRE - Completion Record Log
CONDE - Condensate Analysis Report
CONDR - Continuous Directional Log
CORAN - Core Analysis Report
CORE - Core Report
CORG - Corgun Log
CORIB - Coriband Log
CORLG - Correlation Log
COROR - Core Orientation Report
COWC - Current Oil Water Contact
COXY - Carbon/Oxygen Log
CP - Cathodic Protection
cP - Centipoise
CP - Cloud Point
CPEMA - Concurrent Production Eng Maintenance Activities
CPF - Central Processing Facility
CPI - CPI Log (computer processed interpretation)
CPI separator - Corrugated plate interceptor
CPICB - CPI Coriband Log
CPIRE - CPI Report
CPRA - Concurrent Production & Rig Activities (SIMOPS)
CPT - Compliant Piled Tower (Deepwater)
Cr - Chrome
CRA - Corrosion Resistant Alloy (material)
CRET - Cement Retainer Setting Log
CRI - Cuttings Re-Injection
CRP - Common/Central Reference Point (Subsea Survey)
CRP - Control Riser Platform
CRT - Clamp Replacement Tool
CSB - Conventional Sample Bottle (testing)
CSE - Chemical Systems Engineering
CSE - Control Systems Engineering
CsF - Caesium Formate (coincidentally also an acronym of the sole large-scale supplier of caesium formate brine, Cabot Specialty Fluids.)
CSF - Critical Success Factors
CSG – Casing
CSHN - Cased Hole Neutron Log
CSI - CSI Log
CSIA - Compound Specific Isotope Analysis
CSID - Casing Size Internal Diameter
CSMT - Core Sampler Tester Log
CSO - Capital Staff Overhead
CSPG - Canadian Society of Petroleum Geologists
CSS - Check Shot Surveys
CSS - Cyclic Steam Stimulation
cSt - Centi-stokes (Viscocity)
CST - CST Log
CSTAK - Core Sample Taken Log
CSTRE - CST Report
CSUG - Canadian Society for Unconventional Gas
CT - Coiled Tubing
CTC - Contracting Tender Committee
CTCO - Coiled Tubing Clean Out
CTD - Coiled Tubing Drilling
CTE - Center Technical Excellence
CTFV - Critical Transfer Fluid Velocity
CTLF - Coiled Tubing Lift Frame
CTOD - Crack Tip Opening Displacement
CTR - Cost Time Resource
CTRAC - Cement Tracer Log
CTU - Coiled Tubing Unit
CUP - Clean Up Pit
CUT - Cutter Log
CUTTD - Cuttings Description Report
CVDC - Cost vs Depth Curve (drilling)
CVX - Chevron
CWDT - Critical Wax Deposition Temp
CWOP - Coring the Well On Paper
CWOP- Complete Well On Paper
CWOR- Completion Work Over Riser
CYBD - Cyberbond Log
CYBLK - Cyberlook Log
CYDIP - Cyberdip Log
CYDN - Cyberdon Log
CYPRO - Cyberproducts Log

D

D - Depth
D&C - Drilling and Completions
DA - Data Aquisition
DA - Drill Ahead
DAB - Decision Advisory Board
DAC - Dipole Acoustic Log
DACA - Data Aquisition & Control Architecture (Smart)
DAPC - Dynamic Annular Pressure Control
DARCI - Darci Log
DAT - Wellhead Housing Drill-Ahead Tool
DAZD - Dip and Azimuth Display
DBB - Double Block & Bleed
DBE - Detailed Budget Exercise
DC - Drill Centre
DC - Drill Collar(s)
DCA - Development Contract Area
DCAF - Discipline Controls & Assurance Framework
DCAL - Dual Caliper Log
DCF - Discounted Cash Flow (economics)
DCM - Dielectric Constant Measurement
DCQ - Daily Contracted Quantity (Gas supply contract)
DCS - Distributes Control System
DD - Directional Driller or Directional Drilling
DDBHC - DDBHC Waveform Log
DDET - Depth Determination Log
DDI - Direction Difficulty Index
DDM - Derrick Drilling Machine (a.k.a. Top Drive)
DDNL - Dual Det. Neutron Life Log
DDPT - Drill Data Plot Log
DDV - Downhole Deployable Valve
DDWT - Deliberately Disturbed Well Test
DE - Decision Executive
DE - Drilling Engineer
DECC - Department for Energy and Climate Change (United Kingdom)
DECT - Decay Time
DEFSU - Definitive Survey Report
DEGC - Degree Celcius
DEGF - Degree Fahrenheit
DELTA - Delta-T Log
DEM - Drilling Engineering Manual
DEN - Density Log
DEPAN - Deposit Analysis Report
DEPC - Depth Control Log
DES - Derrick Equipment Set
DESFL - Deep Induction SFL Log
DEV - Development Well, Lahee classification
DEVLG - Deviation Log
DEXP - D-Exponent Log
DF - Derrick Floor
DFA - Downhole Fluid Analysis
DFE(ACD) - Drill Floor Elevation (Admiralty Chart Datum)
DFIT - Diagnostic Fracture Injection Test
DFR - Drilling Factual Report
DG - Decision Gate
DGP - Dynamic Geohistory Plot (3D Technique)^[4]
DH - Drilling History
DHC - Depositional History Curve
DHC - Down Hole Camera (Eline)
DHI - Direct Hydrocarbon Imaging
DHPT - Down Hole Pressure Temperature
DHPTT - Downhole Pressure/Temperature Transducer
DHSIT - Down Hole Shut In Tool (for pressure surveys)
DHSV - Downhole Safety Valve
DIBHC - DIS BHC Log
DIEGR - Dielectric Gamma Ray Log
DIF - Drill In Fluids
DIL - Dual Induction Log
DILB - Dual Induction BHC Log
DILL - Dual Induction Laterolog
DILLS - Dual Induction Log-LSS
DILSL - Dual Induction Log-SLS
DIM - Directional Inertia Mechanism
DINT - Dip Interpretation
DIP - Dipmeter Log
DIPAR - Dipole Acoustic Report
DIPBH - Dipmeter Borehole Log
DIPFT - Dipmeter Fast Log
DIPLP - Dip Lithology Pressure Log
DIPRE - Dipmeter Report
DIPRM - Dip Removal Log
DIPSA - Dipmeter Soda Log
DIPSK - Dipmeter Stick Log
DIRS - Directional Survey Log
DIRSU - Directional Survey Report
DIS - DIS-SLS Log
DISFL - DISFL DBHC Gamma Ray Log
DISO - Dual Induction Sonic Log
DIV - Downhole Isolation Valve
DL - Development Licence (United Kingdom), a type of onshore licence issued before 1996
DLA - Development Lease Area
DLIST - Dip List Log
DLL - Dual Laterolog
DLS - Dog-Leg Severity (directional drilling)
DMA - Dead Man Anchor
DNHO - Downhole Logging
DOA - Delegation of Authority
DoC - Declaration of Commerciality
DOD - Dead Oil Displacement (Subsea)
DODC - Development Operations Coordination Document (US Govt GoM Well Permit applic form)
DODI - Diamond Offshore Drilling company
DOE - Department of Energy, United States
DOWRE - Downhole Report
DP - Drill Pipe
DP - Dynamic Positioning
DP - Development Planner
DPDV - Dynamically Positioned Drilling Vessel
DPL - Dual Propagation Log
DPLD - Differential Pressure Levitated Device (or Vehicle)
DPM - Drill Pipe Measurement
DPRES - Dual Propagation Resistivity Log
DPT - Deeper Pool Test, Lahee classification
DQLC - Dipmeter Quality Control Log
DR - Drilling Report
DR - Dummy Run Log
DRB - Decision Review Board
DRI - Drift Log
DRLCT - Drilling Chart
DRLOG - Drilling Log
DRLPR - Drilling Proposal/Prog. Report
DRPG - Drilling Program Report
DRPRS - Drilling Pressure
DRREP - Drilling Report
DRYRE - Drying Report
DS - Deviation Survey, (also as Directional System)
DS - Downstream
DSCAN - DSC Analysis Report
DSE - Driling Specific Energy
DSFR - Developed Scope For Recovery
DSI - Dipole Shear Imager
DSPT - Cross Plots Log
DST - Drill Stem Test
DSTG - DSTG Log
DSTL - Drill Stem Test Log
DSTND - Dual Space Thermal Neutron Density Log
DSTPB - Drill Stem Test True Vertical Depth Playback Log
DSTR - Drill Stem Test Report
DSTRE - Drill Stem Test Report
DSTSM - Drill Stem Test Summary Report
DSTW - Drill Stem Test Job Report/Works
DSV - Diving Support Vessel or Drilling Supervisor
DT - Downtime
DTA - Decision Tree Analysis
DTC - Delta T Compressional (log).
DTI - Department of Trade and Industry (United Kingdom) (obsolete; superseded by dBERR, which was then superseded by DECC)
DtL - Drilling The Limit
DTPB - CNT True Vertical Depth Playback Log
DTS - Distributed Temperature Sensor (Smart completion)
DTT - Depth To Time
DUR - Developed Ultimate Recovery
DW - Deepwater
DWD - Deep Water Development
DWOP - Drilling Well on Paper (a theoretical exercise conducted involving the Service provider managers)
DWQL - Dual Water Quicklook Log
DWS – Drawworks
DWSS - Dig Well Seismic Surface Log
DXC - DXC Pressure Pilot Report

E

E - Excellent
E&A - Exploration and Appraisal
E&D - Exploration & Development
E&P - Exploration and Production
EAGE - European Association of Geoscientists & Engineers^[5]
ECC - Emergency Control Center
ECCN - Export Control and Compliance Number
ECD - Equivalent Circulating Density
ECP - External Casing Packer
ECR - Emergency Control Room
ECRD - Electrically Controlled Release Tool
ED - Experimental Design (statistical reservoir modelling analysis method)
EDP - Emergency Disconnect Package (Subsea tree)
EDP - Exploration Drilling Program Report
EDP - Extended Draft Platform (Technip offshore platform design)
EDR - Exploration Drilling Report
EDS - Emergency Disconnect Sequence (Offshore rig)
EF - Equipment Failure
EFL - Electrical Flying Lead
EFR - Engineering Factual Report
EGLV - Electric Gas Lift Valve
EGMBE - Ethylene Glycol Mono-Butyl Ether
EGP - External Gravel Pack
EHC - Equivalent Hydrocarbon Column
EIA - Environmental Impact Assessment
EIS - Expandable Isolation Sleeve
EL - Electric Log
ELT - Economic Limit Test
EM - EMOP Log
EMG - Equivalent Mud Gradient
EMMG - Equivalent Mud ??? Gradient
EMMS - Electronic Magnetic Multishot Survey
EMOP - EMOP Well Site Processing Log
EMP - Electromagnetic Propagation Log
EMS - Environmental Management System
EMV - Estimated Monetary Value
EMW - Equivalent Mud Weight
EN PI - Enhanced Productivity Index Log
ENG - Engineering Log
ENGF - Engineer Factual Report
ENGPD - Engineering Porosity Data
Eni - Ente Nazionale Idrocarburi S.p.A. (Italy) ^[6]
ENJ - Enerjet Log
EOA - End Of Assembly (Completion)
EOB - End Of Build (Drilling)
EOC - Equivalent Oil Column
EOFL - End of Field Life
EOR - Enhanced Oil Recovery
EOS - Equation of State (normally Peng Robinson or SRK)
EOT - End of Tubing
EOW - End Of Well Report
EOWR - End Of Well Report
EPA - Exploration & Production - Asia
EPB - Exploration & Production - Business
EPBM - Explor & Prod Business Management
EPC - Engineer Procure Construct
EPCC - Engineer Procure Construct Commission
EPCU - Electrical Power Conditioning Unit
EPE - Exploration & Production - Europe
EPG - Exploration & Production - Africa
EPICO - Engineer Procure Install Construct Operate
EPIDORIS - Exploration and Production Integrated Drilling Operations and Reservoir Information System
EPIRB - Emergency Position Indicating Radio Beacon
EPL - EPL Log
EPLF - E&P Leadership Forum
EPLG - Epilog
EPLPC - EPL-PCD-SGR Log
EPLT - E&P Leadership Team
EPM - Exploration & Production - Middle East
EPR - Exploration & Production - Russia
EPT - EPT Log
EPTNG - EPT-NGT Log
EPT-P - Exploration & Production Technology - Projects; a.k.a. EPP
EPT-S - Exploration & Production Technology - Solutions; a.k.a. EPS
EPW - Exploration & Production - America
EPX-N - Exploration & Production - New Business
EPX-RTD - Regional Technical Directorate. Team that inherits the project after Exploration has found and appraised them.
ER - Emergency Reponse
ER(D) - Extended Reach (Drilling)
ERD - Extended Reach Drilling
ERT - Emergency Response Training
ESAR - Estimating & Schedule Assurance Review
ESD - Emergency Shut-Down
ESD - Equivalent Static Density
ESHIA - Envinmental Safety Health Impact Assessment
ESP - Electric Submersible Pump
ESPCP - Electric Submersible Progressive Cavity Pump
ESS - Expandable Sand Screen
ETAP - Eastern Trough Area Project
ETTD - Electromagnetic Thickness Test
ETU - Electrical Test Unit
EUR - Estimated Ultimate Recovery
EVARE - Evaluation Report
EVP - Employee Value Proposition
EWMS - Eng Work Management System
EWR - End Of Well Report
EWT - Extended Well Test
EXL - or XL, Exploration Licence (United Kingdom), a type of onshore licence issued between the First Onshore Licensing Round (1986) and the Sixth (1992)
EZSV - EZSV Log

F

FA - Flow Assurance
FAC - Factual Report
FACHV - Four Arm Caliper Log
FANAL - Formation Analysis Sheet Log
FAT - Factory Acceptance Testing
FBE - Fusion Bonded Epoxy
FBHP - Flowing Bottom Hole Pressure
FBIV - Full Bore Isolation Valve (remote pressure activated bottom of tubing flapper valve)
FBS - Full Bore Spinner (Prod Logging)
FBU - Flowing/Build UP (Pressure Survey)
FC - Float Collar
FCD - Fracture Conductivity (dimensionless)
FCIBHP - Final Closed In Bottom Hole Pressure
FCP - Final circulating pressure
FCV - Flow Control Valve
FCVE - F Curve Log
FDC - Formation Density Log
FDO - Field Development Options
FDP - Field Development Plan
FDPSO - Floating Drilling Production Storage Offloading host
FDS - Functional Design Specification
FE - Formation Evaluation
FEAST - Fluid Evaluation And Sampling Technologies
FEED - Front End Engineering and Design
FEL - Front End Loading (AFEs & Projects)
FEM - Finite Element Analysis
FEPD - Front End Project Delivery
FER - Field Equipment Room
FESA - Front End Studies Americas
FET - Formation Evaluation Test
FEWD - Formation Evaluation While Drilling
FF - Full Field (reservoir model)
FFAC - Formation Factor Log
FFM - Full Field Model
FFP - Fit for purpose (what use is a BMW in the desert where no road, what use is a camel on a freeway?)
FG - Frac Gradient
FGEOL - Final Geological Report
FGIIP - Free Gas Initially In Place
FH - Full Hole tool joint
FI - Final Inspection
FI(M) - Free Issue (Materials)
FID - Final Investment Decision
FIL - FIL Log
FINST - Final Stratigraphic Report
FINTP - Formation Interpretation
FIP - Flow Induced Pulsation
FIS - Fluid Inclusion Stratigraphy (crush cuttings to get HC data
FIST - Fully Integrated Sand (prediction) Tool
FIT - Fluid Identification Test
FIT - Formation Integrity Test
FIT - Formation Intervil Tester
FIV - Formation Isolation Valve
FIV - Flow Induced Vibration
FL - F Log
FL - Fluid Loss
FL - Flying Lead (Subsea kit)
FLA - Four Letter Acronyms
FLC - Fluid Loss Control
FLD - Fluid Loss Device (Completion valve)
FLET - Flowline End Termination (AKA PLET)
FLIV - FlowLine Injection Valve
FLIV - Flowline Isolation Valve
FLNG - Floating Liquid Natural Gas
FLOG - FLOG PHIX RHGX Log
FLOPR - Flow Profile Report
FLOT - Flying Lead Orientation Tool
FLOW - Flow & Buildup Test Report
FLRA - Field Level Risk Assessment
FLS - Fluid Sample
FLSO - Floating ?
flt - Fault (geology)
FMEA - Failure Modes, & Effects Analysis
FMECA - Failure Modes, Effects, and Criticality Analysis
FMI - Formation Micro Imaging log
FMP - Formation Microscan Report
FMS - Facility Maintenance Specials (budget)
FMS - Formation Multi Scan log; Formation Micro Scan log
FMTAN - FMT Analysis Report
FO - Fibre Optic
FO - First Oil
FOB - Free On Board
FOD - First Oil Date
FOET - Further Offshore Emergency Training
FOSV - Full Opening Safety Valve
FP - Frac Pack (Sand Control)
FPDM - Fracture Potential and Domain Modelling/Mapping ^[7]^[8]
FPI - Final Petrophysical Interpretation
FPIT - Free Point Indicator Tool (electric line)
FPL - Flow Analysis Log
FPLAN - Field Plan Log
FPSO - Floating Production Storage and Offloading vessel
FPU - Floating Processing Unit
FRA - Fracture Log
FRARE - Fracture Report
FRC - Fire Retardant Clothing (Treated cotton)
FRD - Focused Results Delivery
FRES - Final Reserve Report
FRT - Formation Response Test
FS - Fail Safe (as in FS valve)
FS - Float Shoe
FSB - Flowline Support Base
FSI - Flawless Start-up Initiative
FSO - Floating Storage Offloading vessel
FSR - Facilities Status Report
FST - Formation Strength Test
FT - Formation Tester Log
FT - Function Test
FTA - Flow Termination Assembly
ftBDF - feet Below Drill Floor
ftBTHF - feet Below Tubing Head Flange
FTE - Full Time Equivalent (staffing)
FTHP - Flowing Tubing Head Pressure
FTL - Fluid Transfer Line
FTM - Fire-team Member
FTRE - Formation Testing Report
FULDI - Full Diameter Study Report
FV - Funnel Viscosity or Float Valve
FVF - Formation Volume Factor
FWHP - Flowing Well Head Pressure
FWKO - Free water knock out
FWL - Free water level
FWP - Flowing Wellhead Pressure
FWR - Final Well Report
FWT - Flowing Wellhead Temperature
FWV - Flow Wing Valve (also known as Production Wing Valve on a Xmas tree)

G

G/C - Gas Condensate
GA - General Arrangement plumbing drawings
GAP - Gravity Actuated Pipe/Pipeline
GAPI - Gamma Ray using API units
GAS - Gas Log
GASAN - Gas Analysis Report
GAT - Geohazard Assessment Team
GBI - Group Basic Index
GBS - Gravity Based Structure
GBT - Gravity Base Tank
GC - Gas Chromatograph (hydrocarbon analysis)
GC - Gauge Cutter
GCLOG - Graphic Core Log
GCT - GCT Log
GDAT - Geodetic Datum
GDIP - Geodip Log
GDPT - Global Deepwater Planning Tool
GDT - Gas Down To
GE - Condensate gas equivalent
GE - Ground Elevation (also [GR or GRE])
GEOCH - Geochemical Evaluation
GEODY - GEO DYS Log
GEOEV - Geochemical Evaluation Report
GEOFO - Geological & Formation Evaluation Report
GEOL - Geological Surveillance Log
GEOP - Geophone Data Log
GEOPN - Geological Well Prognosis Report
GEOPR - Geological Operations Prog. Report
GEORE - Geological Report
GFPSO - Global Floating Production Storage and Offloading
GGRG - Gauge Ring
GHG - Green House Gas
gHSEr - getting Health Safety & Environment right (BP expression)
GI - Gas Injector or Injection
GIGO - Garbage In Garbage Out
GIH - Going In Hole
GIIP - Gas Initially In Place
GIP - Group Investment Proposal (Shell term)
GIS - Geographic Information System(s)
GIT - Global Implementation Team
GL - Gas Lift or Ground Level
GLE - Ground Level Elevation (generally in meters above mean sea level)
GLM - Gas Lift Mandrel (alternative name for Side Pocket Mandrel)
GLR - Gas Liquid Ratio
GLT - GLT Log
GLV - Gas Lift Valve
GLW -
GMS - Gyro Multi Shot
GOC - Gas Oil Contact
GOGD - Gas Oil Gravity Drainage
GOM - Gulf of Mexico
GOP - Geological Operations Report
GOR - Gas Oil Ratio
GOSP - Gas/Oil Separation Plant
Gp - cumulative Gas production
GP - Gas & Power
GP - Gravel Pack
GPA - Goals & Performance Appraisal (Shell HR form)
GPIT - Inclinometry Tool Log
GPLT - Geol Plot Log
GPSL - Geo Pressure Log
GR - Ground Level (or Elevation //(also [GE or GRE]))
GR - Gamma Ray log
GRAD - Gradiometer Log
GRE - Glass Reinforced Epoxy (Fibreglass)
GRE - Ground Elevation (also [GR or GE])
GRLOG - Grapholog
GRN - Gamma Ray Neutron Log
GRP - Glass Reinforced Plastic
GRSVY - Gradient Survey Log
GRV - Gross Rock Volume (that is HC saturated, normally in billion m3)
GS - Gel Strength
GS - Gas Supplier we
GS - GeoScience
GSD - Grain Size Distribution (reservoir material, for sand control)
GST - Gamma-ray Spectroscopy Tool
Gst - Grainstone, can be from carbonates
GST - GST Log
GTC - Glopbal Technical Consultant
GTL - Gas to liquids
GTP - Global Tech Partner (Shell HQ depts, ie EPT-S, EPT-W)
GTW - Gas To Wire
GUF - Gaslift Utilization Factor Total Gas/Net Oil
GUN - Gun Set Log
GUT - Gas Up To
GWC - Gas-Water Contact
GWD - Gyro While Drilling (drilling BHA tool)
GWDP - Global Well Delivery Process
GWREP - Geo Well Report

H

H - net reservoir height
H2S - Hydrogen Sulfide
HAR - Hazard Analysis Review
HAZID - Hazard Identification (meeting)
HAZIO - Hazard and Operability Analysis
HAZOP - Hazardous Operation
HC - Hydrocarbons
HC - High Case
HCAL - HRCC Caliper (in Logs)(in Inches)
HCCS - Horizontal Clamp Connection System
HCLS - Heave Compensating Lift/Landing System (for subsea tree deployment)
HCM - Horizontal Connection Module. To connect the Xmas Tree to the Manifold
HCPV - Hydrocarbon Pore Volume
HCR - High Closing Ratio valve
HDA - Helideck Assistant
HDM - Hydraulic Distribution Manifold (Subsea kit)
HDPE - High Density Polyethelene
HDT - High Resolution Dipmeter Log
HDT - Hydrate Disassociation Temp
HEMP - Hazards & Effects Management Process
HESP - Horizontal Electric Submersible Pump (surface pump)
HEXT - Hex Diplog
HFE - Human Factors Engineering
HFL - Hydraulic Flying Lead
HFPT - Hydrocarbon Field Planning Tool
HFT - Hydraulic Fracture Test (Drilling)
HGOR - High Gas Oil Ratio
HGS - High (specific-)Gravity Solids
HHP - High High Pressure
HHP - Hydraulic Horse Power ( - P*Q/1714, where P in psi & Q GPM)
HIPPS - High Integrity Pressure Protection System
HISC - Hydrogen induced stress cracking
HIT - Hydraulic Impedance Test
HL - Hook Load
HLO - Heavy Load-out (Facility)
HLO (job role/ training course) - Helicopter Landing Officer
HM - History Match
Hmax - Maximum Wave Height
HOP - Hang Off Point/Profile (ie liner)
HP - High Pressure
HP - Hydrostatic Pressure
HPGAG - High Pressure Gauge
HPHT - High Pressure High Temperature (same as HTHP)
HPPS - HP Pressure Log
HPU - High Pressure Unit
HPU - Hydraulic Power Unit
HPWBM - High Performance Water Base Mud
HRA - Health Risk Assessment
HRCC - HCAl of Caliper (in Inches)
HRSS - High Resolution Sequence Stratigraphy
Hs - Significant Wave Height
HSA - Hydrocarbon Sale Agreement
HSD - high shot density
HSE - Health Safety & Environment
HSE - Health, Safety and Environment or Health & Safety Executive (United Kingdom)
HSES - Health Safety Environment & Security
HSESD - Health Safety Environment & Sustainable Development
HSSE - Health Safety Security & Environment
HST - High Stand (Geologic deposition)
HTHP - High Temperature High Pressure (same as HPHT)
HTHRT - Hydraulic Tubing Hanger Running Tool (subsea wells)
HTM - Heideck Team Member
HUC - Hook Up ? (offshore)
HUD - Hold Up Depth
HUET - Helicopter Underwater Egress/Escape Training
HV - High Viscosity
HVC - Hydraulically Variable Choke
HVDC - High Voltage Direct Current
HWC - High Water Cut
HWDP - Heavy Weight Drill Pipe
HWDP - Heavy-Weight Drill Pipe (sometimes spelled Hevi-Wate)
HWU - Herriot Watt University
HXT - Horizontal Tree
HYPJ - Hyperjet
HYROP - Hydrophone Log
HZ – horizontal

I

I:P - Injector To Producer Ratio
IADC - International Association of Drilling Contractors
IBC - Intermediate Bulk Container
IBO - Internal Blowout
IBOP - Internal Blow Out Preventor
ICD - Inflow Control Device
ICE - Integrated Charge Evaluation
ICoTA - Intervention and Coiled Tubing Association
ICP - Intermediate Casing Point
I-Csg - Intermediate Casing
ICSU - Integrated Commissioning and Start Up
ICV - Inflow/Interval/Injection Control Valve (smart completion equipment)
ICV - Integrated Cement Volume (of Borehole)(in Cubic Metres)
ICV - Interval Control Valve
ID - Identifier
ID - Inner or Internal Diameter (of a tubular component such as a casing)
IDC - Intangible Drilling Costs
IDEL - IDEL Log
IDP - Individual Developent Plan
IEB - Induction Electro BHC Log
IEL - Induction Electrical Log
IF - Internal Flush tool joint
IFO - In Field Opportunity
IFR - Integrated Functional Review
IFT - InterFacial Tension
IGP - Internal Gravel Pack
IH - Gamma Ray Log
IHV - Integrated Hole Volume (of Borehole) (in Cubic Metres)
II - Injectivity Index
IIA - Integrated Impact Assessment
IJL - Injection Log
IL - Induction Log
ILI - InLine Inspection (Intelligent Pigging)
ILOGS - Image Logs
IM - Internet Messenger (AOL, MS, etc)
IMAG - Image Analysis Report
IMCA - International Marine Contractors Association
IMO - International Marine Organization
IMV - Injection Master Valve
Inc - Inclination
INCR - Incline Report
INCRE - Incline Report
INDRS - IND RES Sonic Log
INDT - INDT Log
INDWE - Individual Well Record Report
INJEC - Injection Falloff Log
INSUR - Inrun Survey Report
INVES - Investigative Program Report
IOC - International Oil Company
IOEM - Invert Oil Emulsion Mud
IOP - Integrated Operations Planning
IOR - Improved Oil Recovery
IP - Initial Production
IP - Injured Person (way of describing persn anonomously)
IP - Intermediate Pressure
IPA - Independent Project Analysis Company
IPAA - Independent Petroleum Association of America
IPC - Installed Production Capacity
IPC - Intake Pressure Curve (J curve)
IPLS - IPLS Log
IPM - Injection Pressure Model
IPM - Integrated Production Modelling
IPMS - Integrated Performance Monitoring System
IPP - Integrated Production Plan
IPR - Inflow Performance Relationship (well)
IPR - Injection Production Ratio (waterflood)
IPT - Integrated Project Team
IR - Interpretation Report
IRC - Inspection Release Certificate
IRF - Improved Recovery Factor
IRM - Integrated Reservoir Modelling
IRR - Internal Rate of Return
IRTJ - IRTJ Gamma Ray Slimhole Log
ISC - Integrated Service Contract
ISF - ISF Sonic Log
ISFBG - ISF BHC GR Log
ISFCD - ISF Conductivity Log
ISFGR - ISF GR Casing Collar Locator Log
ISFL ISF-LSS Log
ISFP - ISF Sonic True Vertical Depth Playback Log
ISFPB - ISF True Vertical Depth Playback Log
ISFSL - ISF SLS MSFL Log
ISIP - Initial Shut In Pressure
ISO - international Standards Organization
ITB - Invitation To Bid (normally for procurement)
ITHP - Injection Tbg Head Pressure
ITP - Initial Tract Participation (Unitization)
ITR - Integrated Technical Review (Subsurface, replaced IMR in 2009) (Surface has Assumptions Review)
ITS - Influx To Surface
ITT - Invitation To Tender (contracts)
IUP - Insitu Upgrading Process
IWCF - International Well Control Federation
IWCF - International Well Control Forum
IWOCS - Intervention WorkOver Completion System (Smart completion)
IWOCS- Installation / Workover Control System
IWS - Intelligent Well System
IWV - Injection Wing Master Valve

J

J&A - Junked and abandoned
JB - Junk Basket (well tool)
JU - Jack-Up drilling rig
JT - Joule-Thomson (effect/valve/separator)
JVP - Joint Venture Partners/Participants
JIB - Joint Interest Billing (Partner billing system)
JCP - Job Competance Profile
JIP - Joint Industry Project
JOF - Joints Of Fluid
JP - Jet Pump
JSA - Job Safety Analysis
JSEA - Job Safety Environment Analysis
JV - Joint Venture

K

k - permeability
KB - Kelly Bushing
KBE - Kelly Bushing Elevation (in meters above sea level, or meaters above ground level)
KBG - Kelly Bushing Hight above Ground Level
KD - Kelly Down
Kg - permeability of gravel (in gravel packs and fracs)
Kg - permeability to gas
Kh - horizontal permeability
KHI - Kinetic Hydrate Inhibitor
km - kilometer
KM - Knowledge Management
Ko - permiability to oil
KOIV - Knock Out Isolation Valve
KOP - Kick Off Plug
KOP - Kick-Off Point (directional drilling)
KPI - Key Performance Indicator
Kr - relative permeability
Kro - oil relative permiability
KRP - Kill rate pressure
Krw - water relatiie permiability
Kv - vertical permeability
Kw - permiability to water
Kx - max horizontal permiability
Ky - min horizontal permeability

L

L - Length
L/D - Laydown (@ rig)
LACT - Lease Automatic Custody Transfer
LAH - Lookahead
LAOT - Linear Activation Override Tool
LARS - Launch & Recovery System
LAT - Lowest Astronomical Tide
LC - Low Case
LC - Lower Completion
LCF - Latest Cost Factor
LCM - Lost Circulation Material
LCNLG - LDT CNL Gamma Ray Log
LCV - Liquid Control Valve
LD - Lay down (tubing, rods, etc.)
LDHI - Low Dosage Hydrate Inhibitors
LDL - Litho Density Log
LDS - Lock Down Sleeve (drilling riser)
LDTEP - LDT EPT Gamma Ray Log
LEAKL - Leak Detection Log
LEPRE - Litho-Elastic Property Report
LFA - Live Fluid Analizer
LGR - Liquid Gas Ratio
LGS - Low Gravity Solids (drilled solids)
LH - Left Hand
LHT - Left Hand Turn
LIH - Lost In Hole
LIMS - Laboratory Information Management System
LINCO - Liner and Completion Prog. Report
LIOG - Lithography Log
LIRA - Logistic and Infrastructure Resource Assessment
LIT - Lead Impression Tool
LITDE - Litho Density Quicklook Log
LITHR - Lithological Description Report
LITRE - Lithostratigraphy Report
LITST - Lithostratigraphic Log
LKH - Lowest Known Hydrocarbons (for determining SEC GIIP or *STOIIP)
LKO - Lowest Known Oil
LL - Laterolog
LMAP - Location Map
LMGV - Lower Master Gate Valve
LMP - Liquid Mud Plant
LMRP - Lower Marine Riser Package
Lmst - Limestone
LMV - Lower Master Valve (on a Xmas tree)
LNG - Liquified Natural Gas
LOA - Letter of Authorisation/Agreement
LOE - Lease Operating Expenses
LOGGN - Logging Whilst Drilling
LOGRS - Log Restoration Report
LOGSM - Log Sample
LOI - Letter Of Intent
LOLER - Lifting Operations and Lifting Equipment Regulations
LOT - Leak-Off Test
LOT - Linear Override Tool
LOT - Lock Open Tool
LOTO - Lock Out / Tag Out
LP - Low Pressure
LPG - Liquified Petroleum Gas
LPH -Liters Per Hour
LPWHH - Low Pressure Well Head Housing
LRP - Lower Riser Package
LS - Landing String (subsea completions)
LS - Long String (dual tubing)
LSBGR - Long Spacing BHC GR Log
LSSON - Long Spacing Sonic Log
LST - Low Stand (Geologic deposition)
LT - Linear Time or Lag Time
LTDS - Long Term Drilling Sequence
LTI(FR) - Lost Time Incident (Frequency Rate)
LTIF - Lost Time Incident Frequency
LtO - License to Operate
LTO - Light Tight Oil
LTPF - Long Term Production Forecast
LUMI - Luminescence Log
LVEL - Linear Velocity Log
LVOT - Linear Valve Override Tool
LWD - Logging While Drilling
LWOP - Logging well on Paper

M

M or m - prefix designating a number in thousands (not to be confused with SI prefix M for mega- or m for milli)
M&A - Metering & Allocation
M/V - Marine Vessel
MA - Management Adjustment
MAASP - Maximum Acceptable [or Allowable] Annular Surface Pressure
MAC - Multipole Acoustic Log
MACL - Multiarm Caliper Log
MAGST - Magnetostratigraphic Report
MAHBRT - metres along hole below rotary table
MAIR - Maximum Allowable (water) Injection Rate
MAOP - Maximum Allowable Operating Pressure
MARA - Maralog
MARPOL - Marine Pollution
MARR - Maximum Allowable Reservoir Rate
MAWP - Maximum Allowable Working Pressure
MB - Material Balance (res eng calc)
Mbd - thousand barrels per day
mBDF - meters Below Drill Floor
MBE - Material Balance Equation (res eng )
MBF - Main Boundary Fault
Mbod - thousand barrels of oil per day
Mboed - thousand barrels of oil equivalent per day
MBRO - Multi-Bore Restriction Orifices
MBT - Methylene Blue Test
mBTHF - meters Below Tubing Head Flange
MBU - Multi rate Build Up
MC - Management Committee
MCD - Mechanical Completion Dossier
MCD - Mudcap Drilling
Mcf - thousand cubic feet of natural gas
Mcfe - thousand cubic feet of natural gas equivalent
MCHE - Main Cryogenic Heat Exchanger
MCI - Materials, Corrosion, and Integrity
MCM - Manifold Choke Module
MCS - Manifold & Connection System
MCS - Master Control Station
MCUGP - Milled Casing Underreamed Gravel Pack
mD - millidarcy, measure of permeability, with units of area
MD - Measured Depth (see also MDSS)
MD - Measured Depth vs TVD
MD - Measurements/Drilling Log
MDAH - Measured Depth Along Hole
MDEA - Methyl Diethanolamine (aMDEA)
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"
MDL - Minimum Data List
MDR - Monthly Development Report
MDSS - Measured Depth Sub-Sea
MDT - Modular formation Dynamic Tester
MDT - Measured Drill Test (Schlumberger tool)
MDT - Modular Dynamic Testing (Schlumberger tool)
MEA - Monoethanolamine
MEG - Mono-Ethylene Glycol
MEG - Mono Ethyline Glycol
MEGO - My Eyes Glaze Over (useful for courses)
MeOH - Methanol
MEP - Maximise Economic Production Potential
MEPRL - Mechanical Properties Log
MER - Maximum Efficient Rate
MER - Medical Emergency Response
MERCR - Mercury Injection Study Report
MERG - Merge FDC/CNL/Gamma Ray/Dual Laterolog/Micro SFL Log
MES - Minimum Environmental Standard
MEST - MEST Log
MF - Marsh Funnel (mud viscosity)
MFCT - Multifinger Caliper Tool
MFF - Millipore Filter Factor
MFLD - Mechanical Fluid Loss Device (Completion tool)
MFM - Multi Phase Meter (Subsea & Surface)
MGL - Magnelog
MGS - Mud Gas Separator
MIC - Microbiologically Influenced Corrosion
MIFR - Mini Frac Log
MINL - Minilog
MIPAL - Micropalaeo Log
MIRU - Move In and Rig Up
MIS - Module Initiation Sheet (M-Process)
MISC - Malaysia International Shipping Company
MIST - Minimum Industry Safety Training
MIYP - maximum internal yield pressure
mKB - Meters below Kelly Bushing
ML - Microlog, or Mud Log
ML - Mud Line
MLE - Motor Lead Extension (ESP motor flat)
MLF - Marine Loading Facility
MLH - Mud Liner Hanger
MLL - Microlaterolog
MM - Mud Motor
MM or mm - prefix designating a number in millions (not to be confused with SI unit mm for millimetre)
MMbd - million barrels per day
MMbod - million barrels of oil per day
MMcf - million cubic feet (of natural gas)
MMcfe - million cubic feet (of natural gas equivalent)
MMHE - Malaysia Marine Heavy Engineering
MMP - Minimum Miscibility Pressure (EOR)
MMS - Minerals Management Service, (United States)
MMS - Minerals Management Services (Dept of US Gov't)
MMSCF - Million Standard Cubic Foot
mmscfd - million standard cubic feet per day
mmstb - million stock barrels
MMTPA - Millions of Metric Tonnes per Annum
MNP - Merge and Playback Log
MOA - Memorandom of Agreement
MOC - Management Of Change process
MOD - Money Of Day (economics, actually cost at time in future, not discounted to today)
MODU - Mobile Offshore Drilling Unit
MOF - Marine Offloading Facility
MOI - Memorandum of Interest
MOPO - Manual Of Permitted Operations
MOPU - Mobile Offshore Production Unit
MOR - Managed Open Resources
MOT - Materials/Marine Offloading Terminal
MOU - Memorandum of Understanding
MOV - Movable Oil Volume
MPA - Micropalaeo Analysis Report
MPBT - Mechanical Plug Back Tool (Schlumberger product)
MPD - Managed Pressure Drilling
MPD - Median Particle Diameter
MPFM - Multi-Phase Flow Meter
MPI - Magnetic Particle Inspection
MPK - Merged Playback Log
MPP - Mid Point of Perfs
MPP: Multiphase Pump: Pump, which can increase flowrate and pressure of the untreated wellstream (hydrocarbons in liquid and gas phase, water, CO2, N2, chemicals, etc.)
MPQT - Manufacturing Procedure Qualification Test
MPS - Manufacturing Procedure Specification
MPT - Marine Portable Tank
MPV - Multi Purpose Vessel
MQC - Multi Quick Connection Plate
MR - Marine Riser, (Morning report)
MR - Material Requisition (purchasing)
MR - Mobility Ratio (water or EOR flood, less than 1 is good)
MRCV - Multi Reverse Circulating Valve
MRI - Mechanical Risk Index (Oilpatch standard)
MRIRE - Magnetic Resonance Image Report
MRIW - Monthly Report of Injecting Wells
MRLD - Mechanical Rigid Lockdown tool (Drill-quip tool)
MRPW - Monthly Report of Producing Wells
MS - Marine Supervisor
MSA - Master Service Agreement (Accounting)
MSCT - MSCT Gamma Ray Log
MSFL - Micro SFL Log
MSI - Mechanical and Structural Inspection
MSIPC - Multi Stage inflatable Packer Collar
MSL - Mean sea level
MSL - Mean Sea Level
MSL - Micro Spherical Log
MSM - Micro Seismic
MSS - Magnetic Single Shot (well directional survey)
mss - meters sub sea
MST - MST EXP Resistivity Log
MSV - Marine Supply Vessel
MSV - Mean Square Value
MTAB - Mass Transfer Allocation Balance (meter)
MTBF - Mean Time Between Failure
MTC - Mass Transport Complex (Subsea)
MTC - Medical Treatment Case
MTD - Mass Transport Deposit (Subsea)
MTDS - Medium Term Drilling Sequence
MTM - Metal To Metal (seal)
MTO - Material Take Off
MTT - MTT Multi-Isotope Trace Tool
MTTF - Mean Time To Failure
MTU - Mobil prod Test Unit
MU - Make Up
MUD - Mud Log
MUDT - Mud Temperatire Log
MuSol - Mutual Solvent
MV - Marine Vessel
MVB - Master Valve Block (XT)
MW - Mud Weight
MWD - Measurement While Drilling
MWDRE - Measurement While Drilling Report
MWS - Marine Warranty Survey
MY - Man Year

N

N/G - Net over Gross (pay)
NACE - National Association of Corrosion Engineers
NaCl - Sodium Chloride (table salt)
NAM - Nederlandse Aardolie Maatschappij B.V.
NAPF - Non Aqueous Phase Fluid
NASA - Non Active Side Arm (term used in the North Sea for kill wing valve on a Xmas tree)
NAVIG - Navigational Log
NB - Nominal Bore
NBD - New Business Development
NBO - New Business Opportunities
NBP - Nominal Bore Protector
NBS - Near Bit Stabilizer
NCD - Nigerian Content Directive
ND - Nipple Down (wellhead)
NDE - Non Destructive Examination (Welding)
NDT - Non Destructive Testing (Welding)
NEUT - Neutron Log
NF - Natural Flow (well)
NFA - No Further (CapEx) Activity
NFG - 'No Fucking Good' used for marking damaged equipment, not to be confused with NG being natural gas
NFI - No Further Investment
NFW - New Field Wildcat, Lahee classification
NGDC - National Geoscience Data Centre (United Kingdom)
NGE - New Generation Expat
NGL - Natural Gas Liquids
NGLQT - NGT QL Log
NGR - Natural Gamma Ray
NGRC - National Geological Records Centre (United Kingdom)
NGS - NGS Log
NGSS - NGS Spectro Log
NGT - NGT Log
NGTLD - NGT LDT QL Log
NGTR - NGT Ratio Log
NHDA - National Hydrocarbons Data Archive (United Kingdom)
NHPV - Net Hydrocarbon Pore Volume
NIOSH - (US) National Institute for Occupational Safety and Health
nm - nanometer (length measurement)
NMDC - Non Magnetic Drill Collars
NMHC - Non-Methane Hydrocarbons
NMR - Nuclear Magnetic Resonance Log
NMVOC - Non-Methane Volatile Organic Compounds
NNS - Northern North Sea
NOC - National Oil Company
NOISL - Noise Log
NORM - Naturally Occurring Radioactive Material
NOS - Net Oil Sand
NOV - Non Operated Venture
Np - cumulative oil Production (see also Gp & Wp)
NP - Non Producing well (as opposed to P; Producing well)
NPD - Norwegian Petroleum Directorate, Norway
NPHI - Net Ø (porosity)
NPS - Nominal Pipe Size (sometimes NS)
NPSH - Net Positive Suction Head
NPT - Non Productive Time (rig etc)
NPV - Net Present Value
NPW - New Pool Wildcat, Lahee classification
NRV - Non Return Valve (Chicksan valve that only allows flow in one direction)
NS - North Sea; can also refer to the North Slope Borough, Alaska, the North Slope, which includes Prudhoe Bay Oil Field (the largest US oil field), Kuparuk Oil Field, Milne Point, Lisburne, and Point McIntyre among others.
NtG - Net to Gross (pay)
NTHF - Non-Toxic High Flash
NTT - No Touch Time (hydrates)
NTU - Nephelometric Turbidity Units (100 is low and almost potable, try to get below 20 for completions)
NU - Nipple Up
NUMAR - Magnetic Resonance Image Log
NWB - Near Well Bore

O

O&G - Oil and Gas (referring to the industry or the companies in it)
O&M - Operations and Maintenance
O/P - Overpull
OBC - Ocean Bottom Cable (Seismic)
OBCS - Ocean Bottom Cable System
OBDTL - OBDT Log
OBEVA - OBDT Evaluation Report
OBM - Oil Based Mud
OBM - Oil-Based Mud
OCIMF - Oil Companies International Marine Forum
OCL - Quality Control Log
OCM - Operating Committee Meeting
OCS - Overall Contracting Strategy
OCTG - Oil Country Tubular Goods (oil well casing, tubing, and drill pipe)^[9]
OD - Outer Diameter (of a tubular component such as casing)
ODFE - Old Drill Floor Elevation
ODP - Ocean Drilling Program
ODT - Oil Down To
ODT - Oil Down To (in reservoir)
OEM - Original Equipment Manufacturer
OFST - Offset Vertical Seismic Profile
OGOC - Original Gas Oil Contact OGWC - Original Gas Water Contact
OH - Openhole Log
OHC - Open Hole Completion
OHGP - Open Hole Gravel Pack
OI - Operational Integrity
OIM - Offshore Installation Manager
OIM - Offshore Installation Manager
OIP - Oil Initially in Place
OJT - On Job Training
OML - Oil Mining License (Nigeria)
OMRL - Oriented Micro-Resistivity Log
ONAN - Oil Natural Air Natural cooled transformer
OOE - Offshore Operation Engineer (senior technical authority on an offshore oil platform)
OOIP - Original Oil In Place
OOT - Out of Tolerance
OOWC - Original Oil Water Contact
OPEC - Organization of Petroleum Exporting Countries
OPL - Operations Log
OPMG - Opportunity & Project Management Guide
OPRES - Overpressure Log
OPS - Operations Report
OR&A - Operations Readiness & Availability
ORICO - Oriented Core Data Report
ORP - Opportunity Realization Process
OSC - On Scene Commander
OSR - Oil Steam Ratio (primarily used for economics)
OT - A well On Test
OT - Off Tree
OT - Oil Up To
OTDR - Optical Time Domain Reflectometry
OTIP - Operational Testing Implementation Plan
OTL - Operations Team Leader
OUT - Outpost, Lahee classification
OVCH - Oversize Charts
OVID - Offshore Vessel Inspection Database
OWC - Oil Water Contact

P

P - Poor
P - Producing well (as opposed to NP - Non Producing)
P&A - plugged and abandoned (of a well)
P&ID - Piping and Instrumentation Diagram
P&ID - Process & Instrumentation Diagram
p* - current reservoir pressure
PA - Portfolio Analysis (economic)
PACO - Process Automation, Control & Optimization
PADPRT - Pressure Assisted Drillpipe Running Tool
PAGA - Public Address General Alarm
PAIL - Plunger Assisted Intermittent Lift
PAL - Palaeo Chart
PALYN - Palynological Analysis Report
Pann - annulus Pressure (normally in well)
PANO - Producing Assets & New Opportunities
PAP - Project Assurance Plan
PAR - Pre-Assembled Rack
PAU - Pre-Assembled Unit
PAX - Passengers (ship, plane, etc)
Pb - bubble point Pressure (reservoir)
PBD - Pason Billing System
PBDMS - Playback DMSLS Log
PBL - Paul B Lee who invented DP circ tool
PBR - Polished Bore Receptacle (component of a completion string)
PBRA - Petrobras
PBTD - Plug Back Total Depth
PBU - Pressure Build Up (applies to integrity testing on valves)
PBU - Pressure Build Up survey (well)
Pc - Capillary Pressure (reservoir)
PCA - Principal Component Analysis (water analysis)
PCB - Poly Chlorinated Biphenyl
PCCL - Perforation Casing Collar Locator Log
PCDM - Power and Control Distribution Module
PCE - Pressure Control Equipment
PCI - Project Competative Intelligence
PCKR - Packer
PCL - Pipe Conveyed Logging
PCM - Power Control Module
PCN - Proposal to Commence Negotiation
PCOLL - Perforation and Collar
PCP - Permanent Completion Perforating
PCP - Progressive Cavity Pump (well artificial lift)
P-Csg - Production Casing
PD - Positive Displacement
PDC - Perforation Depth Control
PDC - Polycrystalline Diamond Composite (a type of drilling bit)
PDD - Public Disclosure Document (sets terms for EIA)
PDF - Probability Density Function
PDG/PDHG - Permanent Downhole Gauge
PDKL - PDK Log
PDKR - PDK 100 Report
PDNP - Proved Developed Not Producing
Pdp - Pressure on drill pipe (normally measured at surface to estimate kick)
PDP - Project Development Plan
PDP - Proved Developed Producing (US Reserves Term, requires wells etc in place, like Intl P1)
PDP - Proved Developed Reserves
PDR - Performance Development Review
PDS - Schlumberger log file name extension type (need PDSView to read)
PE - Petroleum Engineer
PE - Petroleum Engineer (but more universally, Professional Engineer)
PEA - Palaeo Environment Study Report
PED - Petroleum Engineering & Development
PEDL - Petroleum Exploration and Development Licence (United Kingdom), introduced in the 8th Onshore Licensing Round
PENL - Penetration Log
PEP - PEP Log
PEP - Project Execution Plan
PERDC - Perforation Depth Control
PERFO - Perforation Log
PERM - Permeability
PERML - Permeability Log
PESBG - Petroleum Exploration Society of Great Britain
PETA - Petrographical Analysis Report
PETD - Petrographic Data Log
PETLG - Petrophysical Evaluation Log
PETPM - Petrography Permeametry Report
PETRP - Petrophysical Evaluation Report
PFC - PFC Log
PFD - Process Flow Diagram
PFE - Plate/Frame Heat Exchanger
PFHE - Plate Fin Heat Exchanger
PFO - Pressure Fall Off survey (ie in water inj well)
PFP - Project Focal Point
PFPG - Perforation Plug Log
PFREC - Perforation Record Log
PFS - Process Flow Sheet (Simplified P&ID)
PFW - Project Framing Workshop
PG - Pressure Gauge (Report)
PGB - Permanent Guide Base
PGOR - Produced Gas Oil Ratio
PH - Phasor Log
PHASE - Phasor Processing Log
PHC - Project HealthCheck
PHI - Ø - porosity
PHOL - Photon Log
PHYFM - Physical Formation Log
PI - Productivity Index or (Permit Issued)
PI - Productivity Indicator/Index
PIC - Person In Charge
PIG - Pipeline Inspection Gauge
PIM - Pre Installed Mooring (Offshore Rig)
PIN - Project Initiation Note (facilities)
PINTL - Production Interpretation
PIP - Pipe in Pipe
PIP - Project Improvement Plan
PIR - Post Implementation Review
PJSM - Pre Job Safety Meeting
Pkr - Packer
PL - Production Licence (United Kingdom), a type of onshore licence issued before 1996
PLEM - Pipeline End Manifold
PLES -Pipeline End Structure
PLET - Pipeline End Termination
PLET - PipeLine End Termination (AKA FLET)
PLG - Plug Log
PLM - Pre-Laid Mooring (Offshore Rig)
PLQL - Production Logging Quick Look (Schlumberger software)
PLS - Position Location System
PLT - Production Logging Tool
PLT - Production Logging Tool (well)
PLTQ - Production Logging Tool Quicklook Log
PLTRE - Production Logging Tool Report
PM - Preventative Maintenance (facilities)
PMCD - Pressurized Mudcap Drilling
PMI - Positive Material Identification
PMU - Petroleum Management Unit (dept of Petronas)
PMV -Production Master Valve
PO - Production Optimization
POB - Personnel on Board (offshore rig/ship)
POBM - Pseudo-Oil-Based Mud
PoE - Plan of Exploration
POF - Permanent Operations Facility
PON - Petroleum Operations Notice (United Kingdom)
POOH / POH - Pull Out Of Hole
POQ - Piss Off Quickly
POR - Density Porosity Log
POROH - Porosity from Open Hole logs
POS - Probability Of Success
POSFR - Post Fracture Report
POSTW - Post Well Appraisal Report
POSWE - Post Well Summary Report
POWC - Present Oil Water Contact (reservoir)
PP - Pump Pressure
PP - DXC Pressure Plot Log
PP - Partial Pressure
PP - Petrophysical
PP - Pore Pressure
ppcf - Pounds Per Cubic Foot
PPD - Pour Point Depresant (Wax chemical)
PPE - Personal Protective Equipment
PPE - Preferred Pressure End
ppf - Pound Per Foot
PPFG - Pore Pressure Frac Gradient
ppg - Pounds Per Gallon
PPI - Post Pipelay Installation
PPI - Post Production Inspection/Intervention
ppm - Parts per Million
PPM - Production Pressure Model
PPP - Pore Pressure Prediction
PPPPPP - Pre Planning Prevents Piss Poor Performance
PPS - Pour Point Suppresant
PPS - Pre Packed (sand control) Screen
PPS - Production Packer Setting
pptf - Pounds (per square inch) Per Thousand Feet (of depth) - a unit of fluid density/pressure
PR2 - Testing regime to API6A Annex F
PRA - Production Reporting & Allocation
PREC - Perforation Record
Pres - Reservoir Pressure
PRESS - Pressure Report
PROD - Production Log
PROTE - Production Test Report
PROX - Proximity Log
PRS - Pipe Racking System (rig)
PRSRE - Pressure Gauge Report
PSA - Production Sharing Agreement
PSANA - Pressure Analysis
PSC - Production Sharing Contract
PSD - Particle Size Distribution
PSD - Planned Shut-Down
PSDM - Pre Stack Depth Migration (Seismic)
PSDV - Process Shut Down Valve
psi - Pound per Square Inch
psia - Pound per Square Inch Absolute (above zero pressure)
PSIA - Pounds Per Square Inch Atmospheric
psig - Pound per Square Inch Gauge (above 1 atm)
PSIG - Pounds Per Square Inch Gauge
PSL - Product Specification Level
PSLOG - Pressure Log
PSM - Production System Model
PSP - pseudostatic spontaneous potential
PSPL - PSP Leak Detection Log
PSQ - Plug Squeeze Log
PST - Production Screen Test (DIF qual for running SC screens)
PST - PST Log
PSTM - Pre Stacked Time Migration
PSV - Pipe Supply Vessel
PSV - Pressure Safety Valve
PSVAL - Pressure Evaluation Log
PT - Pressure Test
PT - Production Technology/Technologist
PTA - Pressure Transient Analysis
PTA/S - Pipeline Termination Assembly/Structure
PTE - Principle Technicl Expert (Shell term)
PTL - Production Technical Limit™ (BP Process)/Produce The Limit
PTM - Pedal to Metal
PTSET - Production Test Setter
PTTC - Petroleum Technology Transfer Council, United States
PtW - Permit to Work
PU - Petroleum Unit (Brunei Gov't)
PU - Pick Up (tbg, rods, power swivel, etc.)
PU - Porosity Unit (ie 1%)
PUD - Proven Un-Developed (US Reserves Term, requires plan in place, like Intl P2)
PUN - Puncher Log
PUR - Plant Upset Report
PUWER - Provision and Use of Work Equipment Regulations
PV - Plastic Viscosity (fluid)
PV - Pore Volume
PV - Present Value
PVi - Pore Volume injected (waterflood)
PVT - Pit Volume Totalizer
PVT - Pressure Volume Temperature
PVTRE - Pressure Volume Temperature Report
PW - Produced Water
PWB - Production Wing Block (XT)
PWD - Pore Pressure While Drilling
PWE - Practise Worth Eradicating (Dario Frigo phrase)
Pwf - flowing bottomhole pressure
PWR - Practises Worth Replicating
PWRI - Produced Water Re-Injection
Pws - static reservoir pressure
PWV - Production Wing Valve (also known as a flow wing valve on a Xmas tree)

Q

Q - current flowrate
QC - Quality control
QCR - Quality Control Report
Qg - gas prod rate
Qi - injection rate (ie water, gas)
QI - Quantitative Interpretation (Seismic)
QL - Quicklook Log
Qo - oil prod rate
QRA - Quantitative Risk Assessment
Qw - water prod rate

R

RAC - Ratio Curves
RACI - Responsible / Accountable / Consulted / Informed
RAM - Reliability, Availability, and Maintainability
RAM - Risk Assessment Matrix
RAP - Rolling Activity Plan
RAWS - Raw Stacks VSP Log
Rb - Reservoir barrel
RB - Rig Back
RBGL - Riser Based Gas Lift
RBP - Retrievable Bridge Plug
RCA - Root Cause Analysis
RCD - Rotating Control Device
RCH - Rotating Control Head
RCI - Reservoir Charactization Instrument (logging tool)
RCJB - ReCirculating Junk Basket
RCKST - Rig Checkshot
RCL - Retainer Correlation Log
RCM - Reliability Centred Maintenance
RCR - Remote Component Replacement(Tool)
RD - Rig Down
RDF - Reservoir Drilling Fluid
RDL - Reservoir Data Log
RDS - Reservoir Development Study
RDT - Rapid Development Team
re - drainage radius
RE - Reservoir Engineer
REOR - Reorientation Log
RE-PE - Re-Perforation Report
REPEAT - Reservoir Engineering Prospect Evaluation Automated Tool (Shell Houston software)
RESAN - Reservoir Analysis
RESEV - Reservoir Evaluation
RESFL - Reservoir Fluid
RESI - Resistivity Log
RESL - Reservoir Log
RESOI - Residual Oil
REZ - Renewable Energy Zone (United Kingdom)
RF - Recovery Factor
RFLNG - Ready for LNG
RFMTS - Repeat Formation Tester
RFQ - Request For Quote
RFSU - Ready For Start Up
RFSU - Ready For Start-Up
RFT - Repeat Formation Tester
RFTRE - Repeat Formation Tester Report
RFTS - Repeat Formation Tester Sample
RHT - Right Hand Turn
RIGMO - Rig Move
RIH - Run In Hole
RITT - Riser Insertion Tube (Tool)
RKB - Rotary Kelly Bushing (a datum for measuring depth in an oil well)
RKB - Rotary Kelly Bushings
RLOF - Rock Loadout Facility
RLWI - Rig Less Well Intervention
RLWI - Riserless Less Well Intervention
RM - Repair & Maintenance
RM - Risk Management
RMLC - Request for Mineral Land Clearance
RMP - Reservoir Management Plan
RMS - Ratcheting Mule Shoe
RNT - RNT Log
ROACE - Rtn On Avg Capital Employed
ROAR - Regional Review
ROC - Retention Of Cuttings (Mud term)
ROCK - Retention Of Critical Knowledge
ROCT - Rotary Coring Tool
ROP - Rate of Penetration; Rate of Perforation
ROR - Rate Of Return (Economics)
ROS - Remaining Oil Saturation (reservoir)
ROV - Remotely Operated Vehicle
ROV/WROV - Remotely Operated Vehicle/WorkClass Remotely Operated Vehicle, used for subsea construction and maintenance
ROWS - Remote Operator Workstation
ROZ - Recoverable Oil Zone
RPCM - Ring Pair Corrosion Monitoring
RPM - Relative Permeability Modifier
RPM - Reservoir Performance Monitoring
RPM - Revolutions Per Minute, (Rotations Per Minute)
RPS - Revolution Per Second
RR - Re-Run
RR - Rig Release
RROCK - Routine Rock Properties Report
RRR - Reserves Replacement Ratio
rs - Condensate Gas Ration in situ
Rs - Solution Gas Oil Ratio in situ
RSM - Response Surface Model
RSM - Riser Seal Mandrel
RSS - Rig Site Survey
RSS - Rotary Steerable System
RSS - Rotary Steerable Systems
RST - Reservoir Saturation Tool (Schlumberger) Log
RT - Real Time
RT - Rotary Table
RT - Round Trip
RTA - Rate Transient Analysis
RTEP - Real-Terms Earnings Power
RTL - Realizing The Limit
RTO - Real Time Operations
RTOC - Real Time Operation Center
RTS - Remote Testing Station
RTTS - Retrievable Test-Treat-Squeeze (packer)
RU - Rig Up
RV - Ranking Value
Rw - Resistivity of Water
rw - Wellbore Radius
RWD - Reaming While Drilling
RWI - Raw Water Injection
RXC - Regional Exploration Consultant

S

S - total Skin
S&D - Shoot & Drop
S&P - Shoot & Pull
S/O - Slack Off
S2B - Subsea to Beach
SA - Seal Assembly
SABA - Supplied Air Breathing Apparatus
SAG - Surfactant Alternating Gas (EOR Flood)
SAGD - Steam Assisted Gravity Drainage
SAGD - Steam Assisted Gravity Drive
SALM - Single Anchor Loading Mooring
SAM - Subsea Accumulator Module
SAML - Sample Log
SAMTK - Sample Taker Log
SANDA - Sandstone Analysis Log
SARA - Saturate Aromatic Resin Asphaltenes
SART - Search & Rescue Transponder
SAS - Stand Alone Screens (Sand control)
SAT - SAT Log
SAT - Site Acceptance Test
SB - SIT-BO Log
SBF - Synthetic Base Fluid
SBM - Single Buoy Mooring
SBM - Synthetic (oil) Based Mud
SBOP - Surface Blow Out Preventer
SBT - Segmented Bond Tool
SC - Seismic Calibration
SC - Solids/Sand Control
SCADA - Supervisory Control And Data Acquisition
SCAL - Special core analysis
SCAP - Scallops Log
SCBA - Self Contained Breathing Apparatus
SCDES - Sidewall Core Description
scf - standard cubic feet (of natural gas)
SCHLL - Schlumberger Log also SCHLO, SCHLU
SCL - Strategic Cost Leadership
SCM - Supply Chain Management
SCM(MB) - Subsea Control Module (Mounting Base)
SCO - Synthetic crude oil
SCON - Sand Consolidation
SCP - Summary Completion Proposal
SCR - Steel Catenary Riser (subsea system component)
SCRO - Subsea Control Room
SCRS - Sidewall Cores
S-Csg - Surface Casing
SCSSV - Surface Controlled Subsurface Safety Valve
Scw - Saturation of Connate Water
SD - Shut Down
SD - Sonic Density
SD - Sustainable Development
Sdam - Damage skin
SDE - Supervising Drilling Engineer
SDFD - Shut Down For Day
SDFN - Shut Down For Night
SDIC - Sonic Dual Induction
SDL - Supplier Document List
SDM/U - Subsea Distribution Module/Unit
SDPBH - SDP Bottom Hole Pressure Report
SDT - Step Draw-down Test (sometimes SDDT)
SDU/M - Subsea Distribution Unit/Module
SE - Stakeholder Engagement
SEA - Strategic Environmental Assessment (United Kingdom)
SECGU - Section Gauge Log
SEDHI - Sedimentary History
SEDIM - Sedimentology
SEDL - Sedimentology Log
SEDRE - Sedimentology REport
SEM - Scanning Electron Mycroscope
SEM - Subsea Electronics Module
Semi (or Semi-Sub) - Semi-Submersible Drilling Rig
SEPAR - Separator Sampling Report
SEQSU - Sequential Survey
SESD - Subsea Emergency Shut Down
SET - Solid Expandable Tubular
SF - Smart Field
SFC - Sand Face Completion
SFERAE - Global Association for the use of knowledge on Fractured Rock in a state of Stress, in the field of Energy, Culture and Environment ^[10]
SFL - Steel Flying Lead
SFR - Scope For Recovery
SG - Specific Gravity
SG - Static Gradient
SGIIP - Soln Gas Initially In Place
SGR - Shale Gouge Ratio
SGSI - Shell Global Solutions International
SGT - Structural Geological Toolkit (Shell software product)
SGUN - Squeeze Gun
SHA - Sensor Harness Assembly
SHDT - Stratigraphic High Resolution Dipmeter Tool
SHF - Saturation Height Function
SHO - Stab and Hinge Over
SHOCK - Shcok Log
SHOWL - Show Log
SI - Scale Inhibitor
SI - Shut In well
SI/TA - Shut In/Temporarily Abandoned
SICP - Shut-In Casing Pressure
SIDPP - Shut-In Drill Pipe Pressure
SIDSM - Sidewall Sample
SIEP - Shell International Exploration & Production
SIFEC
SIGTTO - Society of International Gas Tankers and Terminal Operators
SIL - Safety Integrity Review (HSE)
SIMCON - Simultaneous Construction
SIMOPS - Simultaneous Operations
SIMOPS - Simultaneous Operations
SIP - Shut In Pressure
SIPES - Society of Independent Professional Earth Scientists, United States
SIPM - Shell Internationale Petroleum Maatschappij
SIT - Stackup Integrity Test (For Wellhead - trees)
SIT - System Integration Test FR SIT - Field Representation SIT
SIT - System Integration Test (Most common)
SIT - System Integrity Test
SITHP - Shut In Tubing Hanger/Head Pressure (another term for CITHP)
SITT - Single TT Log
SIWHP - Shut-in Well Head Pressure
SKPLT - Stick Plot Log
SL - Seismic Lines
SLA - Service Level Agreements
SLC - Shell Leadership Challenge
SLS - SLS GR Log
SLT - SLT GR Log
SMA - Small Amount
SMART - Specific Measurable Auditable Realistic Time based
SME - Subject Matter Experts
SMLS - Seamless PipeMPP:
SMO - Suction Module
SMPC- Subsea Multiphase Pump: Pump, which can increase flowrate and pressure of the untreated wellstream
SMRP - Static Model Review Panel
SMS - Safety Management System
SMT - Senior Mud Technician
SN - Seat Nipple
SNAM - Societá NAzionale Metanodotti now Snam S.p.A. (Italy) ^[11]
SNAME - Society of Naval Architects and Marine Engineers
Snd - Sandstone
SNEPCo - Shell Nigeria Exploration and Production Company
SNP - Sidewall Neutron Porosity
Snr - Non removable skin
SNS - Southern North Sea
So - oil Saturation
SO - Slack Off
SOBM - Synthetic Oil Based Mud
SOC - Shell Only Cost (for Shell account)
SOGT - Sabah Oil & Gas Terminal
Soi - oil Saturation initial
SOLAS - Safety of Life at Sea
SOLAS - Safety Of Life At Sea
SONCB - Sonic Calibration Log
SONRE - Sonic Calibration Report
SONWR - Sonic Waveform Report
SONWV - Sonic Waveform Log
Sor - residual oil Saturation (oil that is immobile)
SOR - Steam Oil Ratio (HO projects)
Sorw - residual oil Saturation to waterflood
SOS - Senior Onsite Supervisor
SOW - Scope Of Work
SOW - Slack Off Weight (rig)
SOW _ Slip-On Wellhead
SP - Shot point (geophysics)
SP - Social Performance
SP - Spontaneous Potential (Well Log)
SPAF - SIEP Project Approval Form
SPCAN - Special core analysis
SPE - Society of Petroleum Engineers^[12]
SPEAN - Spectral Analysis
SPEL - Spectralog
SPF - Shot Per Foot (perforation reading)
SPFM - Single Phase Flow Meter
SPH - SPH Log
SPM - Side Pocket Mandrel or Strokes Per Minute (of a positive-displacement pump)
SPM - Shot Per Meter (Perforations)
SPM - Strokes Per Minute (PJ artificial lift reading)
SPOP - Spontaneous Potential Log
Spp - Skin due to partial penetration
SPP - Stand Pipe Pressure
SPROF - Seismic Profile
SPS - Subsea Production Systems
SPT - Shallower Pool Test, Lahee classification
SQL - Siesmic Quicklook Log
SR - Shear Rate
SR - Source Rock
SRB - Sulphate Reducing Bacteria (souring of reservoir)
SRD - Seismic Reference Datum, an imaginary horizontal surface at which TWT is assumed to be zero
SRD - Seismic Reference Depth (ie below surface layers
SRD - Shell Recruitment Day
SREC - Seismic Record Log
SRP - Sucker Rod Pump
SRT - Site Receival Test
SRT - Step Rate Test
SS - Shell Share
SS - Short String (dual tubing)
SS - Static pressure Survey
SS - Steady State
SS - Subsea, as in a datum of depth, e.g. TVDSS (true vertical depth subsea)
SSB - Singlephase Sample Bottle
SSCC - Sulphide Stress Corrosion Cracking
SSCP -Subsea Cryogenic Pipeline
SSCR - Shaped Steel Caternary Riser
SSCS - Subsea Control System
SSD - Sliding Side Door (slickline tool)
SSD - Sliding Sleeve Door
SSD - Sub Sea Level depth (in Meters or Feet, positive value in downwards direction with respect to the Geoid)
SSG - Sidewall Sample Gun
SSIV - Subsea Isolation Valve
SSM - Subsea Manifolds
SSMAR - Synthetic Seismic Marine Log
SSPLR - Subsea Pig Launcher/Receiver
SSSL - Supplementary Seismic Survey Licence (United Kingdom), a type of onshore licence
SSSV - Sub-Surface Safety Valve
SSSV - Subsurface Safety Valve
Sst - Siltstone
SSTT - Subsea Test Tree
SSTT - Sub Sea Test Tree
SSTVD - SubSea True Vertical Depth
SSU - Subsea Umbilicals
SSV - Surface Safety Valve
SSWI - Subsea Well Intervention
ST - Shoe Track
ST - Side Track
ST&F - Slips, Trips, & Falls
stab - Stabiliser
STAGR - Static Gradient Survey Report
STB - Stock Tank Barrel
STBOPD - Stock Tank Barrels Oil Per Day (oil prod rate)
STC - STC Log
STDS - Short Term Drilling Sequence
STEP - Shell Technology Exploration & Production
STFL - Steel Tube Fly Lead
STGL - Stratigraphic Log
STIMU - Stimulation Report
STKPT - Stuck Point
STL - Service The Limit
STL - STL Gamma Ray Log
STL - Stock Tank Liquid
STO - Stock Tank Oil
STOIIP - Stock Tank Oil Initially In Place
STOP - Safety Training Observation Program
STRAT - Stratigraphy, stratigraphic
STRRE - Stratigraphy Report
STSH - String Shot
SUML - Summarised Log
SUMRE - Summary Report
SUMST - Geological Summary Sheet
SURF - Subsea/Umbilicals/Risers/Flowlines
SURFR - Surface Sampling Report
SURRE - Survey Report
SURVL - Survey Chart Log
SUT(A/B) - Subsea Umbilical Termination (Assembly/Box)
SUTU - Subsea Umbilical Termination Unit
SV - Screening Value
SV - Sleeve Valve or Standing Valve
SVLN - slickline Safety Valve Landing Nipple
SW - Salt Water
Sw - water saturation (cannot be below water connate saturation)
SWBT - Sea Water Break Through
Swbt - water saturation at waterflood breakthrough
Swc - connate (immobile) water saturation
SWC - Side Wall Core
SWD - Salt Water Disposal Well
SWE - Senior Well Engineer
SWF - Shallow Water Flow
Swf - water Saturation at waterflood front
SWHE - Spiral Wound Heat Exchanger
Swi - initial water saturation
Swi - irrudicable water saturation, (same as Swc)
SWOP - Sample Well On Paper (exercise)
SWOT - Strength Weakness Opportunity Threat analysis
SWOT - Strengths, Weaknesses, Opportunities and Threats
SWS - Smart Well Solutions
SWT - Surface Well Test
Sww - water saturation at well
SYNRE - Synthetic Seismic Report
SYSEI - Synthetic Seismogram Log

T

T - Temperature
T - Tight
T - well flowing to Tank
T&OE - Technical & Operational Excellence
T&T - Tasks & Targets
TA - Temporarily Abandoned well
TA - Temporary Abandon
TAC - Tubing Anchor
TAD - Tender Assisted Drilling (ie Smedvig)
TAD - Torque And Drag
TAF - Technical Assurance Framework
TAGOGR - Thermally Assisted Gas/Oil Gravity Drainage
TAML - Technology Advancement of Multi Lateral
TAN - Total Acid Number
TAP - Torque & Pressure
TAP - Trapped Annular Pressure
TAPLI - Tape Listing
TAPVE - Tape Verification
TAR - True Amplitude Recovery
TB - Tubing Puncher Log
TBA - To Be Advised
TBD - To Be Determined
TBG - Temporary Guide Base
TBT - Through Bore Tree
TCA - Total Corrosion Allowance
TCF - Temporary Construction Facilities
TCF - Trillion Cubic Feet(of gas)
TCI - Tunsgten Carbide Insert (a type of rollercone drillbit)
TCM - Technical Committee Meeting
TCP - Tubing Conveyed Perforating
TCPD - Tubing-Conveyed Perforating Depth
TCU- Thermal Combustion Unit
TD - Target Depth
T-D - Time Depth seismic conversion
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)
TDD - Total Depth (Driller)
TDL - Total Depth (Logger)
TDM - Touch Down Monitoring
TDS - Top Drive System
TDS - Top Drive System (rig)
TDS - Total Disolved Solids (in water)
TDS - Total Dissolved Solids
TDT - TDT Log
TDT - Thermal Decay Time
TDT GR - TDT Gamma Ray Casing Collar Locator Log
TDTCP - TDT CPI Log
TEC - Tubing Encapsulated Conductor (smart kit electrical umbilical)
TECOP - Technical Economic Commercial Organizational Politico-Societal
TEFC - Totally Enclosed Fan Cooled
TEG - Tri-ethylene Glycol
TELER - Teledrift Report
TEMP- Temperature Log
TEMPSC - Totally Enclosed Motor Propelled Survival Survival Craft
TFE - TotalFinaElf (obsolete; Now Total S.A.) major French multinational oil company^[13]
TFL - Through Flow Line
TFM - TaskForceMajella Research Project
TG - Total Gross
TGB - Temporary Guide Base
TGOR - Total Gas Oil Ratio (GOR uncorrected for gas lift gas present in the production fluid)
TH - Tubing Hanger
THERM - Thermometer Log
THF - Tubing Head Flange
THP - Tubing Hanger Pressure (pressure in the production tubing as measured at the tubing hanger)
THP - Tubing Head Pressure
THRT - Tubing Hanger Running Tool
THS - Tubing Head Spool
TI - Technical Integrity
TIE - Tie In Log
TIEBK - Tieback Report
TIG - Tech Information Group (SPE subteams)
TIH - Trip Into Hole
TIW - Texas Iron Works (pressure valve)
TIW - Texas Iron Works valve (ball valve that seals in both directions) aka mud saver valve, aka Lower Kelly Cock
TLA - Technical Limit Approach (BP)
TLA - Three Letter Acronym
TLD - Technical Limit Drilling
TLI - Top of Logging Interval
TLO - Tight Light Oil
TLOG - Technical Log
TMB - Twin Mono Bore (well design)
TMCM - Tranverse Mercator Central Meridian
TMD - Total Measured Depth in a wellbore
TNDT - Thermal Neutron Decay Time
TNDTG - Thermal Neutron Decay Time/Gamma Ray Log
TOC - Table Of Contents
TOC - Top Of Cement
TOC - Total Organic Content/Carbon
TOF - Top Of Fish
TOFD - Time of first data sample (on seismic trace)
TOFS - Time of first surface sample (on seismic trace)
TOH - Trip Out of Hole
TOI - Transocean International (Rig co)
TOJ - Time Of Job
TOL - Top Of Liner
TOOH - Trip Out Of Hole
TOPU - Topsides Umbilical Termination Unit
TOR - Terms Of Reference
TORAN - Torque and Drag Analysis
TOS - Top Of Screen, Top Of Sand
TPA - Technical Peer Assist
TPERF - Tool Performance
TPF - Temporary Production Facility
TPR - Tubing Pipe Ram
TQM - Total Quality Management
TR - Temporary Refuge
TRA - Tracer Log
TRACL - Tractor Log
TRCF - Total Recordable Case Frequency
TRCFR - Total Recordable Case Frequency Rate
TRD - Total Report Data
TREAT - Treatment Report
TREP - Test Report
TRIP - Trip Condition Log
TROIF - Total Recordable Occupational Incident Frequency
TRSCSSSV - Tubing Retrievable Surface Controlled Sub-Surface Safety Valve
TRSCSSV - Tubing Retrievable Surface Controlled Sub-Surface Valve
TRSSSCV - Tubing Retrievable Sub Surface Safety Control Valve
TRSV - Tubing Retrievable Safety Valve
TRSV - Tubing Retrievable Safety Valve
TS - Topside
TSA - Thermally Sprayed Aluminium
Tscf - Trillion standard cubic feet (gas volume)
TSF - Transocean Sedco Forex
TSI - Temporarily Shut In
TSL - Tubing Stability Latch (Completion zone)
TSO - Tip Screen Out
TSP - Twin Screw Pump
TSR - Thermochemical Sulphate Reduction (creates H2S)
TSS - Technical Specification Sheet
TSS - Total Suspended Solids (in water)
TST - Transgressive Stand (Geologic deposition)
TT - Test Tool
TT - Through Tubing
TT - Torque Tool
TT - Transit Time Log
TTBP - Through Tubing Bridge Plug (Baker product)
TTC - Through Tubing Conveyed
TTOC - Theoretical Top Of Cement
TTR - Top Tension Riser
TTRD - Through Tubing Rotary Drilling
TTRD - Through Tubing Rotary Drilling
TUM - Tracked Umbilical Machine
TUTA - Topside Umbilical Termination Assembly (subsea umbilical)
TV - Travelling Valve (rod pump)
TV/BIP - Ratio of Total Volume (ore and overburden) to Bitumen In Place
TVBDF - True Vertical Depth Below Derrick Floor
TVD - True Vertical Depth (vs MD)
TVDC - Time Versus Depth Curve (drilling)
TVDPB - True Vertical Depth Playback Log
TVDSS - True Vertical Depth Sub Sea
TVELD - Time and Velocity to Depth
TVP - True Vapour Pressure (sales oil)
TVRF - True Vertical Depth versus Repeat Formation Tester
TVT - True Vertical Thickness
TWC - Thick Wall Cylinder (core test)
TWCV - Two Way Check Valve
TWT - Two-Way Time (seismic)
TWTTL - Two-Way Travel Time Log
TZ - Transition Zone

U

µ - Viscosity (pronounced mu)
UBD - Under Balanced Drilling
UBI - Ultrasonic Borehole Imager (Schlumberger log)
UBIRE - Ultrasonic Borehole Imager Report
UBO - Under Balanced Operations
UCS - Unconfined Compressive Stress (core test)
UCSU - Upstream Commissioning and Start-Up
UDC - Unit Development Cost
UFJ - Upper Flex Joint
UGF - Universal Guide Frame
UIC - Underground Injection Control
UKCS - United Kingdom Continental Shelf
UKOOA - United Kingdom Offshore Operators Association
UKOOG - United Kingdom Onshore Operators Group
ULCGR - Uncompressed LDC CNL Gamma Ray Log
ULW - Ultra Light Weight (Proppant)
UMCA - Umbilical Midline Connection Assembly
UMGV - Lower Master Gate Valve
UMV - Upper Master Valve (from a Xmas tree)
UO - Unconventional Oil
UPI - Unit Participating Interest (Unitization)
UPR - Upper Pipe Ram
UR - Ultimate Recovery
URT - Universal Running Tool
USG - United States Gallons
USGS - United States Geological Survey
USV - Underwater Safety Valve
UTA - Umbilical Termination Assembly
UTC - Unit Technical Cost
UTH - Umbilical Termination Head
UTM - Universal Transverse Mercator
UUOA - Unitization & Unit Operating Agreement

V

V2V - Volume 2 Value
VAR - Value Assurance Review
VC - Value Creation
Vc - Velocity across gravel pack at perf tunnel
VDENL - Variation Density Log
VDL - Variable Deck Load (floating rig)
VDL - Variable Density Log
VDL - VDL Log
VDU - Vacuum Distillation Unit, used in processing bitumen
VELL - Velocity Log
VERAN - Verticality Analysis
VERIF - Verification List
VERLI - Verification Listing
VERTK - Vertical Thickness
VES - Visco Elastic Surfactant
VFP - Vertical Flow Profile
VIPs - Value Improvement Practices (Shellspeak)
VIR - Value Investment Ratio
VISME - Viscosity Measurement
VIT - Vacuum Insulated Tubing
VIT - Vertical Interference Test (Wireline)
VIV - Vortex induced Vibration
VLA - Vertical Loaded Anchors
VLP - Vertical Lift Performance
VLTCS - Very Low Temperature Carbon Steel
VO - Variation Order
VOCs - Volatile Organic Compounds
VoI - Value of Investment/Information
VOR - Variation Order Request
VOWD - Value Of Work Done
VRR - Voidage Replacement Ratio (waterflood)
VS - Vertical Section
Vs - Velocity across gravel pack screen
VSD - Variable Speed Drive
VSD - Vertical Steam Drive
Vsh - V Shale
VSP - Vertical Seismic Profile (log)
VSPRO - Vertical Seismic Profile
VTDLL - Vertical Thickness Dual Laterolog
VTFDC - Vertical Thickness FDC CNL Log
VTISF - Vertical Thickness ISF Log
VWL - Velocity Well Log
VXT - Vertical Christmas Tree (Subsea)

W

W - Watt
W - Width
W&R - Wash & Ream (Drilling)
W/ - With
W/C - Water Cushion
WABAN - Well Abandonment Report
WAG - Water Alternating Gas (describes an injection well which alternates between water and gas injection)
WAG - Wild Ass Guess
WALKS - Walkaway Seismic Profile
WAMS - Well Activity Management System
WATAN - Water Analysis
WAV3 - Amplitude (in Seismics)
WAV4 - Two Way Travel Time (in Seismics)
WAV5 - Compensate Amplitudes
WAVF - Waveform Log
WB - Wear Bushing
WBM - Water Based Mud
WBM - Water-Based drilling Mud
WBT - Water Breakthrough
WC - Watercut / Wildcat well
WDP - Well Data Pack
WDS - Well Data Sheet
WDT - Oil Down To
WDW - Water Disposal Well
WE - Well Engineer
WEG - Wireline Entry Guide
WELDA - Well Data Report
WELP - Well Log Plot
WEQL - Well Equipment Layout
WESTR - Well Status Record
WESUR - Well Summary Report
WF - Water Flooding
WFAC - Waveform Acoustic Log
WFO - Wide Fucking Open (no choke)
WFT - Wireline Formation Testing
WGC - Wet Gas Compressor (Subsea Framo Eng)
WGEO - Well Geophone Report
WGFM - Wet Gas Flow Meter
WGM - Wet Gas Meter
WGUNT - Water Gun Test
Wh - White
WH - Well History
WH - Wellhead
WHIG - Whitehouse Gauge
WHM - Wellhead Maintenance
WHM - Wellhead Maintenance
WHMIS - WorkPlace Hazardous Material Information Systems
WHP - Wellhead Pressure
WHP - Wellhead Pressure
Wi - cumulative Water injected
WI - Water Injection
WI - Water Injector or Injection
WI - Working Interest
WIH - Wash In Hole
WIMS - Well Integrity Management System
WIP - Work In Progress
WIPSP - WIP Stock Packer
WIQI - Well Inflow Quality Indicator (actual well inflow/"ideal" well inflow)
WIT- Water Investigation Tool
WITS - Well Site Information Transfer System
WIW - Water Injection Well
WL - Wire Line
WLC - Wireline Composite Log
WLL - Wireline Logging
WLR - Water Liquid Ratio (Watercut)
WLS - Water Lift Station
WLSUM - Well Summary
WLTS - Well Log Transaction System
WLTS Well Log Tracking System
WO - Wait On
WO - Wash Out (well bore)
WO - Well in Work Over
WO/O - Waiting on Orders
WOA - Well Operations Authorization
WOB - Weight On Bit
WOC - Wait on Cement
WOC - Water Oil Contact (= OWC)
WOD - Waiting On Daylight
WOE - Well Operations Engineer (a key person of Well services)
WOI - Waiting On Ice
WOM - Wait(ing) on Material
WOO - Waiting On Orders
WOR - Water-Oil Ratio
WORKO - Workover
WOS - Waiting On Slot
WOS - West of Shetland, oil province on the UKCS
WOW - Wait(ing) On Weather
Wp - cumulative Water production
WP - Well Proposal or Working Pressure
WP&B - Work Plan & Budget
WPC - Water Pollution Control
WPLAN - Well Course Plan
WPQ/S - Weld Procedure Qualification/Specification
WPR - Well Prognosis Report
WQ - A textural parameter used for CBVWE computations (Halliburton)
WQCA - Water Quality Control Act
WQCB - Water Quality Control Board
WQFL - Well Quality Feedback Loop
WR - Wet Resistivity
WR - Wireline Retrievable (as in a WR Plug)
WRB - Well Review Board
WRS - Well Report Sepia
WRSCSSV - Wireline Retrievable Surface Controlled Sub-Surface Valve
WRSSSCV - Wireline Retrievable Sub Surface Safety Control Valve
WS - Work String
WSCL - Well Site Core Log
WSCS - Well Services Completions Supervisor
WSDE - Wellsite Drilling Engineer
WSE - Well Seismic Edit
WSERE - Well Seismic Edit Report
WSHT - Well Shoot
WSL - Well Site Leader
WSL - Well Site Log
WSO - Water Shut Off
WSOG - Well Specific Operation Guidelines
WSP - Well Seismic Profile
WSP - Well Systems Productivity
WSPE - Wellsite Petroleum Engineer
WSR - Well Shoot Report
WSS - Well Services Supervisor (leader of Well services at the wellsite)
WSS - Working Spread Sheet (for logging)
WSSAM - Well Site Sample
WSSOF - WSS Offset Profile
WSSUR - Well Seismic Survey Plot
WSSVP - WSS VSP Raw Shots
WSSVS - WSS VSP Stacks
WSTL - Well Site Test Log
WSU - Well Service Unit
WT - Well Test
WTC - Westhollow Technology Center
WTI - West Texas Intermediate benchmark crude
WUT - Oil Up To
WUT - Water Up To
WVS - Well Velocity Survey
WWS - Wire Wrapped Screen

X

XC - Cross-connection, cross correlation
XL - or EXL, Exploration Licence (United Kingdom), a type of onshore licence issued between the First Onshore Licensing Round (1986) and the Sixth (1992)
Xln - Crystalline (minerals)
XLPE -Cross-linked Polyethylene
XMAC - Cross-Multipole Array Acoustic log
XMAC-E - XMAC Elite (Next generation of XMAC)
XMRI - Extended Range Micro Imager (Halliburton)
XMT/XT/HXT - XMas Tree (Christmas Tree, the valve assembly on a production well-head)
X-Over - Crossover
XO - Cross-Over
XOM - Exxon Mobil
XOV - Cross-Over Valve
XPERM - Matrix Permeability in the X-Direction
XPHLOC - Crossplot Selection for XPHI
XPOR - Crossplot Porosity
XPT - Formation Pressure Test log (Schlumberger)
XRD - eXperienced hire Recruiting Day
XT - Christmas Tree
XYC - XY Caliper Log (Halliburton)

Y

yd - yard
yl - Holdup Factor
YP - Yield Point
yr - year
YTD - Year To Date
YTF - Yet To Find

Z

Z - Depth, in the geosciences referring to the depth dimension in any x,y,z data.
Z - Z factor
Z - Vertical axis (depth in res modelling)
ZDENP - Density Log
ZDL - Compensated Z-Densilog
ZOI - Zone of Influence

References

↑ http://www.aade.org
↑ http://www.aapg.org
↑ ^3.0 ^3.1 http://www.standard.no/PageFiles/1315/D-010r3.pdf
↑ van Dijk, J.P. (1993); Three-dimensional quantitative restoration of central Mediterranean Neogene basins. In: Spencer, A.M. (Ed.). Generation, accumulation and production of Europe's hydrocarbons III. Special publication of the European Association of Petroleum Geologists No. 3, Springer-Verlag, Heidelberg, 267-280.
↑ http://www.eaeg.org
↑ http://www.eni.com
↑ van Dijk, J.P. (1998); Analysis and modelling of fractured reservoirs. SPE paper 50570, Europec; European Petroleum Conference, Vol.1, 31-43.
↑ van Dijk, J.P. (1996); Fracture potential and domain mapping; a new technique applied to Maastrichtian-Danian chalk in Block 2/5 (Norway). In: Chalk Geoscience Workshop. PL006, 018, 067, 2-3 Dec. 1996, NPD Stavanger, Extended Abstracts.
↑ "OCTG (casing and tubing)". Network International Oilfield Glossary. Network International. http://www.networkintl.com/support/glossary.aspx#103.
↑ http://www.sferae.org
↑ http://www.snam.it
↑ http://www.spe.org
↑ http://www.total.com

External links

Network International Glossary July-11
Oil Field Acronyms and Abbreviations July-11
Oil Drum Acronyms July-11
Drillingahead Oilfield Acronyms & Terminology Sept-11
OCIMF Acronyms Oct-11
SPWLA Petrophysical Curve Names and Mnemonics Oct-11
American Royalty Council Glossary Nov-11

[1] ttp://www.aade.org

[2] ttp://www.aapg.org

[standard1-3] 3.0 ^3.1 http://www.standard.no/PageFiles/1315/D-010r3.pdf

[van_Dijk_1993-4] van Dijk, J.P. (1993); Three-dimensional quantitative restoration of central Mediterranean Neogene basins. In: Spencer, A.M. (Ed.). Generation, accumulation and production of Europe's hydrocarbons III. Special publication of the European Association of Petroleum Geologists No. 3, Springer-Verlag, Heidelberg, 267-280.

[5] ttp://www.eaeg.org

[6] ttp://www.eni.com

[van_Dijk_1998-7] van Dijk, J.P. (1998); Analysis and modelling of fractured reservoirs. SPE paper 50570, Europec; European Petroleum Conference, Vol.1, 31-43.

[van_Dijk_1996-8] van Dijk, J.P. (1996); Fracture potential and domain mapping; a new technique applied to Maastrichtian-Danian chalk in Block 2/5 (Norway). In: Chalk Geoscience Workshop. PL006, 018, 067, 2-3 Dec. 1996, NPD Stavanger, Extended Abstracts.

[9] "OCTG (casing and tubing)". Network International Oilfield Glossary. Network International. http://www.networkintl.com/support/glossary.aspx#103.

[10] ttp://www.sferae.org

[11] ttp://www.snam.it

[12] ttp://www.spe.org

[13] ttp://www.total.com

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

[13]

List of oil field acronyms

Contents

#

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

See also

References

External links

Help to improve this pageWhat's this?