Glossary of petroleum engineering terms meanings

Glossary of petroleum engineering terms meanings

 

1P meaning 2D Seismic meaning 2P meaning 3D Seismic meaning 3P meaning 4D Seismic meaning AAIOR meaning A Annulus meaning AAODC meaning AAPEA meaning AAPG meaning AAPL meaning AAR meaning AASP meaning AAV (subsea) meaning Abalation Debris (perforating) meaning Abandon meaning Abandon meaning Abandonment Cost meaning Abandonment Pressure meaning Abiogenic Theory meaning Abject Failure (Risk) meaning Abnormally Pressured meaning Abrasion (geologic) meaning Abrasion (mechanical) meaning Abrasive Jetting meaning Abrasive meaning ABS meaning Absolute Ages meaning Absolute Filter Level meaning Absolute Open Flow (AOF) meaning Absolute Open Flow Potential meaning Absolute Permeability meaning Absolute Porosity meaning Absolute Pressure meaning Absolute Temperature meaning Absolute Viscosity meaning Absolute Volume meaning Absolute Zero meaning Absorber meaning Absorb meaning Absorptance (seismic) meaning Absorption Gasoline meaning Absorption Oil (facilities) meaning Absorption (processing) meaning ABS (plastic) meaning Abyssal meaning Abyssal Plain meaning ACA meaning Accelerator (chemical) meaning Accelerator (drilling) meaning Accommodation meaning Accretion meaning Accumulation (reservoir) meaning Accumulator Precharge meaning Accumulator (pressure control device) meaning Accumulator (processing plant) meaning Accuracy meaning Acetic Acid meaning ACFM meaning Acid Brittleness meaning Acid Effect meaning Acid Flowback Analysis meaning Acid Fracture meaning Acid Gas meaning Acid Inhibitor meaning Acidizing meaning Acid meaning Acid Solubility meaning Acid Stick meaning Acoustic Basement meaning Acoustic Impedance meaning Acoustic Logging meaning Acoustic Travel Time meaning Acoustic Velocity meaning Acquisition Log meaning Acreage meaning Acre-Ft meaning Acrylamide Polymer meaning Acrylic meaning ACS meaning AC Test DustTM meaning Activated Carbon meaning Activation Logging meaning Activator meaning Active meaning Actuator meaning ACV meaning Adaptor meaning Adaptor Spool meaning Additive meaning Adhesion meaning Adiabatic meaning Adjustable Choke meaning AD meaning ADP (training) meaning Adsorption Band (seismic) meaning Adsorption meaning Aeration meaning Aerobic (bacteria) meaning Aerosol meaning AFD meaning AFE (expense) meaning AFE (well operation) meaning AFP meaning After Cooler meaning AFUDC meaning AFV meaning AGA meaning Agate meaning Agglomerates meaning Agglomeration meaning Aggregate (cementing) meaning Aggregation meaning AG meaning AHD (depth) meaning AHV (subsea) meaning AIME meaning AIPG meaning AIP meaning Air Can meaning Air Density meaning Air Drilling meaning Air Gap meaning Air Gun meaning Air Lift meaning Air meaning Air Stripping meaning Air Weight meaning AIS meaning ALARA meaning Alarm Point meaning Albian meaning ALG meaning Aliphatic meaning Alkali meaning Alkali Metal meaning Alkaline Flooding meaning Alkaline meaning Alkanes meaning Alkenes meaning Alkyd meaning Alkylation meaning Allocated Pool meaning Allocation meaning Allocation Method meaning Allochthonous meaning Allogenic meaning Allowable meaning Allowable Working Pressure or Stress meaning Alluvial Fan meaning Alluvium meaning AL meaning Alpha Decay meaning Alpha Wave meaning Alternate Path Technology meaning Aluminum Activation Log meaning Aluminum Stearate meaning Alum meaning Ambient Temperature meaning Amides meaning Amines meaning Amorphous Kerogen meaning Amorphous meaning Amphoteric Metal meaning Amphoteric Surfactant meaning AMPS meaning Anaerobic (bacteria) meaning Analogous Reservoir meaning Anchor meaning Ancillary Component meaning ANGA meaning Angle of Repose (sand in pipe) meaning Angstrom meaning ANGTS meaning Angular Unconformity meaning Anhydrite meaning Anhydrous meaning Aniline Point meaning Anion Exchange meaning Anionic Surfactant meaning Anion meaning Anisotropy meaning Anithic Fault meaning Annubar meaning Annular Blowout Preventer meaning Annular Flow meaning Annular Injection meaning Annular Packoff meaning Annular Pressure meaning Annular Preventer meaning Annular Safety Valve meaning Annular Valve meaning Annular Velocity meaning Annulus meaning Annulus Sea Assembly meaning Anode Corrosion Efficiency meaning Anode meaning Anode, sacrificial meaning Anodic Inhibitor meaning Anodic Protection meaning Anodizing meaning Anomalous meaning Anoxic meaning ANSI meaning Anthracite meaning Anti-agglomerants (hydrate control) meaning Anticline meaning Antifoamer meaning Antifouling meaning Antitheic Fault meaning Antiwhirl Bit meaning Anvil (perforating) meaning AOF meaning AOFP meaning AOR meaning APB meaning APD (DOI) meaning APD meaning APE meaning APE meaning Aperture meaning API Fluid Loss meaning API Gravity meaning API meaning API Monogram meaning API RP meaning API Unit meaning Apparent Resistivity meaning Apparent Viscosity meaning Appraisal Well meaning APR meaning APR meaning APRV meaning AQL meaning Aquicide meaning Aquifer meaning Aquitard meaning Archean meaning Archie Correlation meaning Archie Equation meaning Arch meaning Area of influence (of a well) meaning Area Open To Flow meaning Area-to-Volume Ratio (mineral) meaning Area-to-Volume Ratio (pore/frac volume) meaning Arenaceous meaning Argillaceous meaning Arkose meaning Armor meaning Aromatic (chemical) meaning Arrest Marks (failure/crack development) meaning Arryo meaning Artesian Water meaning Artificial Lift meaning ASME meaning Asphalt or Asphaltene meaning Asph meaning Assay meaning Assemblage meaning Associated Gas meaning Associated Liquids meaning Associated Reservoir meaning Astenosphere meaning ASTM meaning ASV meaning Athie Wagon meaning ATP meaning Attapulgite Clay meaning Attenuation meaning ATV meaning Austenitic Steel meaning Authigenic meaning Authochthonous meaning Automatic “J” meaning AUV (subsea) meaning Available Overpull meaning AV (flow) meaning AV (fluids) meaning AWGRS meaning AW Rod Thread meaning AWV meaning Axial Load meaning Azimuth (logging) meaning Babbitt meaning Backbite meaning Back Flow meaning Back Flushing meaning Background Radiation meaning Back-Haul meaning Back-in (contract) meaning Back Off meaning Back Pressure meaning Back Pressure Valve meaning Back Reamer meaning Back Scuddling meaning Back-Side meaning Back Surge meaning Back-Up Ring (seals) meaning Back-Up Wrench or Tong meaning Back Wash meaning Bacterial Degradation meaning Bacterial Oxidation and Reduction meaning Bacterial Remediation meaning Bactericide meaning Baffles meaning Bag-Off meaning Bailer meaning Bail meaning Balanced Plug meaning Balance Point (coiled tubing or snubbing) meaning Balance Point meaning Balancing Agreement meaning Ball Catcher meaning Ball Diverter meaning Ball Dropper meaning Ballooning (drilling) meaning Ballooning (pipe) meaning Ball Operated meaning Ball-Out meaning Ball Sealers meaning Ball (tool operation) meaning Ball Valve meaning Banana Blade meaning Banded Iron Ore meaning Band or Banded meaning B Annulus meaning Barchan meaning Barefoot Completion meaning Bar-Finger sand meaning Barge meaning Bar (geologic) meaning Bar Hole meaning Barite meaning Barite Plug meaning Barium Sulfate (scale) meaning Bar (pressure) meaning Barrel Equivalent meaning Barrel meaning Barrel Pump meaning Barrels of Oil Equivalent, BOE meaning Barrier Coating (corrosion) meaning Barrier Coating (protective) meaning Barrier Island meaning Barrier (NORSOK definition) meaning Bar-Vent (perforating) meaning Basalt meaning Base Fluid meaning Base Gas meaning Base Management meaning Base Map meaning Basement Rocks meaning Base Pipe meaning Basic Sediment and Water or BS&W meaning Basin meaning Basket or Basket Sub meaning BAST (DOI) meaning Batch Mixing meaning Batch Treating (chemical treating) meaning Batholith meaning Bathymetry meaning Battery (fluid treating) meaning Baume (density) meaning Bauxite meaning Bayrite meaning Bbl meaning Bcf meaning B/D meaning Beach Marks (failure/crack development) meaning Bead Tracer meaning Beam Pump meaning Bean meaning Bean-Up Strategy meaning Bearden Unit of Consistency meaning Bedding Plane meaning Bed Filtration meaning Bed Load meaning Bed meaning Bed Rock meaning Bed Wrap meaning Behind Pipe Reserves meaning Belching meaning Bell Nipple meaning Below Rotary Time (drilling) meaning Belt Effect meaning Benchmark meaning Bending Cycle (coiled tubing) meaning Bend Radius meaning Beneficiation meaning Bentonite meaning Bent Sub meaning Benzene meaning Benzoic Acid Flakes meaning Berea Sandstone meaning Bernoulli’s Equation meaning Beta Factor (flow) meaning Beta Particle meaning Beta Rating (filtration) meaning Beta Wave (gravel packing) meaning BFE meaning BF meaning BG meaning BHA meaning BHCIP meaning BHCP meaning BHCS meaning BHCT meaning BHFP meaning BHFT meaning BHG meaning BHI meaning BHIP meaning BHL meaning Bholin meaning BH (perforating) meaning BHPI meaning BHP meaning BHSIP meaning BHS meaning BHS meaning BHST meaning BHT meaning BHTP meaning BHTV meaning BH (well position) meaning Bias Weld meaning Bicarb meaning Bicarbonate meaning Bi-Center Bit meaning BiC meaning Bi-Directional Valve meaning Big Hole Charge (perforating) meaning Bi-Metal Corrosion meaning Binder (coating) meaning Bingham Plastic meaning Bioaccumulation meaning Bioaugmentation meaning Biocide meaning Biodegration meaning Biogenic Gas meaning Biogenic Source (sedimentary rocks) meaning Biogenic Theory meaning Biological Marker meaning Biomass meaning Biophasic meaning Biopolymer meaning Biostratigraphy meaning Biot meaning Biot’s Constant meaning Bioturbation meaning Bioventing meaning Bird meaning Bit Breaker meaning Bit meaning Bit Record meaning Bit Sub meaning Bitumen meaning Bituminous Coal meaning Bituminous Coating meaning Bit Weight (drilling) meaning Bit Whirl (drilling) meaning BJ meaning BKB meaning Black Oil meaning Black Shale meaning Blaine Fineness meaning Blanking Plug meaning Blank meaning Blank Off meaning Blasting Cap meaning Blast Joint meaning Bleeding Core meaning Bleed Off meaning Blender meaning Blind Box meaning Blind Flange meaning Blinding (screen) meaning Blind Nipple meaning Blind Pool meaning Blind Rams meaning Blind Zone meaning Blistering (elastomer) meaning Blistering (steel) meaning BL meaning BLM meaning BLM (wireline) meaning Block Fault meaning Block (flow) meaning Block (lease) meaning Block (rigging) meaning Block Squeeze meaning Block Valve meaning Blooie Line meaning Blow Down meaning Blowdy meaning Blowout meaning Blowout Preventer or BOP meaning BLPD meaning Blue Gas meaning BML (subsea) meaning BM meaning BMP meaning BMT meaning BMX meaning BOC meaning BOD (design) meaning BOD (reaction) meaning Body Lock Rig meaning Body meaning BOE meaning Boiling Point meaning Boll Weevil (various) meaning BOMA meaning Bond meaning Bonnet meaning Bonus Money (contract) meaning Booster Cap meaning Booster Pump (pipeline) meaning Boot Sub meaning BOP meaning Borate meaning Borax Logging meaning Borehole Compensated Sonic meaning Borehole meaning Borehole Televiewer meaning Bore meaning BOSS meaning BOT meaning Bottle Neck meaning Bottom Casing Packoff meaning Bottom Hole Assembly or BHA meaning Bottom Hole Choke meaning Bottom Hole Gas Separator meaning Bottom Hole Pressure or BHP meaning Bottom Hole Sampler meaning Bottom Hole Temperature meaning Bottom Out meaning Bottom Plug meaning Bottom Shot Detector meaning Bottoms Up meaning Bound Fluid Log meaning Bound Water meaning Bowl meaning Bow Spring Centralizer meaning Box meaning Box Tap meaning Box Threads meaning Boycott Settling Range meaning BPD meaning BPFluxTM meaning BP meaning BPM meaning B Profile meaning BPV meaning BP (well plugging) meaning Bracelet Anodes meaning Brackish Water meaning Bradenhead meaning Braden Head meaning Braided Stream meaning Braided Wireline meaning Brake (drilling) meaning Branch Connection meaning Break an Emulsion meaning Break Circulation meaning Breakdown meaning Breaker meaning Breaking Down (drill string) meaning Breakout (drilling) meaning Break-out meaning Breakthrough meaning Break Tour meaning Breccia meaning Brent meaning Bridge meaning Bridge Plug meaning Bridging Material meaning Bridging meaning Bridle (beam lift) meaning Bridle (logging) meaning Bright Spot meaning Bright WaterTM meaning Brinell Hardness meaning Brine meaning British Thermal Unit or BTU meaning Brittle Fracture meaning BR meaning Broaching (flow) meaning Broach meaning Brookfield Rheometer meaning Brownfield meaning Brownian Motion meaning BRT (drilling) meaning BS&W meaning BSI meaning BS meaning BSR meaning BtBcp meaning BtB meaning BTMS meaning BTU meaning BTX meaning Bubble Flow meaning Bubble Point meaning Buckling meaning Buckling Point meaning Buck Up meaning Buffer meaning Buid Section meaning Build Angle meaning Build Ramp meaning Bulk Density meaning Bulk Modulus (K) meaning Bullet Gun meaning Bullheading meaning Bull Plug meaning Bull Wheel meaning BU meaning Bump Down meaning Bump The Plug meaning Bunker C Oil meaning Buoyancy meaning Buoyed Weight meaning BUR (drilling) meaning Burner Capacity or Rating (flare) meaning Burning Shoe meaning Burn Over meaning Burr meaning Burst Disk meaning Burst meaning Burst Rating meaning Butadiene meaning Butane meaning Butt Cleat (coal) meaning Butterfly Valve meaning Butt Fracture (in coal) meaning Button meaning Button Slip meaning Button-Up meaning Butt Weld meaning Buy Back Agreement meaning BVI (logging) meaning BV meaning BWOB meaning BWOC meaning BWOW meaning BWPD meaning BW Rod Thread meaning BX Ring meaning Bypass (piping) meaning Byproduct (reaction) meaning CAA meaning Cable Head meaning Cable meaning Cable Tool Rig meaning CaBr2 meaning CaCl2 meaning CaCO3 meaning Cage Wrench meaning Caisson (pipe) meaning Cake meaning Calcareous Coating meaning Calcite meaning Calcium Bromide meaning Calcium Carbonate meaning Calcium Chloride meaning Calcium Hydroxide meaning Calcium Oxide meaning Calcium Reducers meaning Calcium Sulfate meaning Calcium Treated meaning Calibration meaning Caliche meaning Caliper Log meaning Cambrian meaning C&P meaning C Annulus meaning CAOF meaning Capacitance Tool meaning Cap A Well meaning CAPEX meaning Capillary Action meaning Capillary meaning Capillary Pressure Curve meaning Capillary pressure meaning Capillary String meaning Capital Asset meaning Capital cost or expenditure meaning CAP meaning Cap Rock meaning Carbide Blast Joint meaning Carbon 14 isotope meaning Carbonate meaning Carbon Dioxide meaning Carbon/Hydrogen Ratio meaning Carbonic Acid meaning Carboniferous meaning Carbon-Oxygen Log meaning Carbon Sequestration meaning Carbon Steel meaning CarboPropTM meaning Carboxyl Methyl, Hydroxy Methyl Cellulose meaning Carboxy Methyl Cellulose meaning Carboxymethyl Starch meaning Carburizing meaning Carried Interest meaning Carrier Fluid meaning Carrier rig meaning Carrying Capacity meaning Cartridge Filter meaning Cased and Perforated meaning Cased Hole Gravel Pack meaning Cased Hole Log meaning Case Hardened meaning Casing-Annular Pressure meaning Casing Centralizer meaning Casing Cladding meaning Casing Collar Log meaning Casing Coupling meaning Casing Crew meaning Casing Cutter meaning Casing Grade meaning Casing Gun meaning Casing Hanger meaning Casing Head Gas and Gasoline meaning Casing Head meaning Casing Inspection Log meaning Casing Jacks meaning Casing Joint meaning Casing Liner meaning Casing meaning Casing Patch meaning Casing Plunger meaning Casing Point meaning Casing Pressure meaning Casing Reciprocation meaning Casing Roller meaning Casing Rotation meaning Casing Scraper meaning Casing Seat meaning Casing Seat Test meaning Casing Shoe meaning Casing Shoe Test meaning Casing String meaning Casing Swage or Broach meaning Casing Tongs meaning Casing Tongs meaning Casing Valve meaning Casing Wear meaning Casing Weight meaning CaSO4 meaning Cast Iron Bridge Plug meaning Cataclastic Rock meaning Catalyst meaning Catenary Riser meaning Cat Head meaning Cathode meaning Cathodic Corrosion meaning Cathodic Protection meaning Cation Exchange Capacity meaning Cationic Surfactant meaning Cation meaning Cat Line meaning CATs (subsea) meaning Cat Walk meaning Caustic meaning Cavings meaning Cavings Rock meaning Cavitation meaning Cavity Completion meaning CBHFP (rock mechanics) meaning CBHT meaning CBJ meaning CBL meaning CBM meaning CBNG meaning CBT meaning CCDST meaning CCL meaning CCP (completion) meaning CCP (compression) meaning CCT meaning CD (contract) meaning CDL meaning CDP meaning CDP (rock mechanics) meaning CDR (flow) meaning CDR (logging) meaning CEC meaning Cellar meaning Celloflake meaning Cell Spar meaning CEL meaning CE meaning Cement Accelerator meaning Cement and Cementation (formation) meaning Cementation Exponent meaning Cementation meaning Cement Bond Log meaning Cement Bond meaning Cement Channel meaning Cement (completions) meaning Cement Density meaning Cementing Head meaning Cementing Head meaning Cement Packer meaning Cement Plug meaning Cement Poison meaning Cement Pump Time meaning Cement Retainer meaning Cement Retarder meaning Cement Slurry Density meaning Cenozoic meaning Centipoise meaning Centralizer meaning Centrifugal Pump meaning Centrifuge meaning CEQ meaning Ceramic (frac) meaning CERCLA meaning Certs meaning Cessium Acetate meaning Cessium Formate meaning CET meaning C Factor meaning CFD (fluids) meaning Cfd meaning CFE meaning CFH meaning CF meaning CFPP meaning CFR meaning CGA meaning CGF meaning CG meaning CGR meaning Chain Tongs meaning Chalcedony meaning Chalk meaning Chamber Lift meaning Channel (cement) meaning Channel (formation) meaning Chase meaning Chat meaning Cheater meaning Checking (corrosion) meaning Check Shot Survey (seismic) meaning Check Trip meaning Check Valve meaning Chelant meaning Chemical cutter meaning Chemical Dissolution meaning Chemical Flooding meaning Chemical Resistance meaning Chemical Sediment meaning Chemical Tracing meaning Chemical Treating meaning Chemical Weathering meaning CHEMRAZTM meaning Cherry Picker (fishing) meaning Chert meaning CHESS meaning Chevron packing (seal) meaning Chevron Pattern (corrosion) meaning CHFP meaning CHGP meaning ChicksanTM meaning Chisel Bit meaning CHK meaning CHKS meaning CHKS (rig up) meaning CHL meaning Chloride Stress Cracking meaning Chlorinated Hydrocarbons meaning Chlorine Dioxide meaning Chlorine Log meaning Chlorite meaning Choke Bean meaning Choke Line meaning Choke Manifold meaning Choke meaning Choke Trim meaning CHOPS meaning Christmas Tree meaning Chromatogram meaning Chrome Tubing meaning Churn Flow meaning CIBHP meaning CIBP meaning CID (subsea) meaning CIM meaning CIRC meaning Circulate and Weight Method meaning Circulate meaning Circulating Pressure meaning Circulation Charge meaning Circulation Control Valve meaning Circulation Losses meaning Circulation Squeeze meaning Circulation Sub meaning Circulation Valve meaning CIT (corrosion) meaning CIT-OA meaning CIT (pressure test) meaning Citric Acid meaning CIT (subsea) meaning CIV (completion) meaning CIV meaning CIWHP meaning C/K (drilling) meaning ClampOnTM Sand Detector meaning Clamshell Marks (failure/crack development) meaning Class A Cement meaning Class C Cement meaning Class E and F Cements meaning Class G and H Cements meaning Clastic meaning Clay-Bound Water meaning Clay Extender meaning Clay Flocculation meaning Clay meaning Clay Migration meaning Clay Swelling meaning Clean Circulation (drilling) meaning Clean Oil meaning Cleanout meaning Clear Brine meaning Cleat Fracture (in coal) meaning CLFP meaning Clintoptolite meaning CL meaning ClO2 meaning Closed Chamber Testing meaning Close In meaning Closing Ratio meaning Closure (fracture) meaning Cloud Point (Paraffin) meaning Cluster Perforating meaning CLW (SSSV) meaning CMC meaning CMHPG meaning CMIT – IAxOA meaning CMIT – TxIA meaning CMIT – TxIAxOA meaning CMP (depth) meaning CMS meaning CMTD meaning Cmt meaning CNG meaning CNL meaning CO2 Injection meaning CO2 meaning Coagulation meaning Coal Bed Methane meaning Coalescence meaning Coal gasification meaning Coal Gas meaning Coal liquefaction meaning Coal meaning Coarse meaning Coating Holiday meaning Coating meaning Coccolith meaning COD meaning COE meaning COFCAW meaning Cogeneration meaning Coherence (seismic) meaning Cohesion meaning Coiled Tubing Completion meaning Coiled Tubing Connector meaning Coiled Tubing Drilling meaning Coiled Tubing Injector Head meaning Coiled Tubing meaning Coiled Tubing Unit meaning Coke meaning Cold Finger Test meaning Cold Treating meaning Coleman Equation meaning Collapse Chimneys meaning Collapse Pressure meaning Collapse Rating meaning Collar Lock meaning Collar Log meaning Collar meaning Collar Stop meaning Collett Connector (coiled tubing) meaning Collett Lock meaning Collett meaning Collider meaning Collision meaning Colloidal Suspension meaning Colloid meaning Combination Log meaning Combination Trap meaning Combustible Limits (fuel gas) meaning CO meaning Commercial Production Level meaning Commingle meaning Common Carrier (petroleum) meaning Common Process meaning Communication meaning Compaction Drive meaning Compaction meaning Company Man (drilling) meaning Compartmentalization meaning Compartments meaning Compatible Brine meaning Compensated Formation Density Log meaning Compensated Log meaning Completed Well meaning Completion Bore Protector (subsea) meaning Completion Fluid meaning Completion Interval meaning Completion Technical Limits meaning Complex Fracturing meaning Complex Well meaning Compliant Expansion meaning Composite Bridge Plug meaning Composite Log meaning Compressibility meaning Compressional Wave meaning Compression-Ignition Engine meaning Compression Ratio meaning Compression-Set Packer meaning Compressor meaning Compton Scattering meaning CONCAWE meaning Concentric Completion meaning Concentric Operations meaning Concentric Tubing meaning Concentric Tubing Workover meaning Concession (lease) meaning Conchoidal Marks (failure/crack development) meaning Concurrent Method meaning Condensate Banking meaning Condensate meaning Condensed Water meaning Condition the Mud meaning Conductance meaning Conduction Heat Transfer meaning Conductive Concrete meaning Conductivity (fracture flow) meaning Conductor Pipe meaning Confining Bed meaning Confining Pressure meaning Confirmation Well meaning Conformation Well meaning Conformity meaning Confusion Block meaning Conglomerate meaning Coning meaning Connate water meaning Connection Gas meaning Consequence (Risk) meaning Consistency meaning Consistometer meaning Consolidated meaning Consortium meaning Constant Choke-Pressure Kill Method meaning Contact Angle meaning Contact meaning Contaminant (cementing) meaning Content (fuel) meaning Continental Margin meaning Continental Shelf meaning Contingency String (casing design) meaning Contingent Resources meaning Continuity meaning Continuous Flow Gas Lift meaning Continuous Phase meaning Contour meaning Contracted Reserves meaning Control Gas meaning Control Head meaning Control Line meaning Convection Heat Transfer meaning Convective Mixing meaning Conventional Crude Oil meaning Conventional Energy Sources meaning Conventional Gas meaning Conveyance (well work) meaning COPAS (accounting) meaning Copolymer meaning Core Analysis meaning Core Barrel meaning Core Diameter (coiled tubing reel) meaning Core meaning Corkscrew meaning Correlate meaning Corridor meaning Corrosion Coupon meaning Corrosion-Erosion meaning Corrosion Fatigue meaning Corrosion Film meaning Corrosion Inhibitor meaning Corrosion meaning Corrosion Potential (Ecorr) meaning Corrosion Resistant Alloy meaning Corrosion Resistant Ring Groove meaning Corrosive Gas meaning COST Well meaning Counterbalance Weights meaning Coupling meaning Coupon meaning Covalent Bond meaning CP (casing) meaning CPS meaning CPT (corrosion) meaning CQG meaning Crack a Valve meaning Cracking (refining) meaning CRA meaning Crater (blow out) meaning Cratering or Sloughing meaning Crazing meaning Creaming Curve meaning Creaming of Emulsions meaning Creep meaning Creep meaning Crest (flow) meaning Crest (geology) meaning Cretaceous meaning Crevice Corrosion meaning Crew meaning CRI (solids handling) meaning CRI (structure) meaning Critical Buckling Load meaning Critical Components meaning Critical Drawdown meaning Critical Failure meaning Critical (flow) meaning Critical Flow Rate (biofilm) meaning Critical Flow Rate (corrosion/erosion) meaning Critical Flow Rate (liquids unloading) meaning Critical Flow Rate (sand production) meaning Critical Saturation meaning Critical Temperature meaning Critical Velocity (erosion) meaning Critical Velocity (unloading) meaning Cr meaning Crooked Hole meaning Cross Dipole meaning Cross Flow meaning Crosslinked meaning Crossover (gravel packing) meaning Crossover Sub meaning Cross Plot meaning Crosswell Tomography meaning Crown Block meaning Crown Lands meaning Crown meaning Crown Plugs (subsea) meaning Crown Saver meaning CRP (rock mechanics) meaning Crude and Crude Oil meaning Crude Oil Equivalent meaning Crush Zone meaning Crust meaning Crystallation Temperature meaning Crystal meaning CsCOOH meaning CSDTM meaning Csg meaning CSS meaning CST (fluids) meaning CST (rock) meaning CTDESP meaning CTD meaning CTE meaning CTL meaning CT meaning CTR meaning CTU meaning Cumulative Production meaning Cup Packer meaning Curie Point meaning Curing Agent meaning Curvature (seismic) meaning Cushion Gas meaning Cushion (underbalance) meaning Cut and Strip meaning Cut Fluid meaning Cut Lip Guide meaning Cut meaning Cut-Off tool meaning Cutrite meaning Cuttings meaning CVAR (subsea) meaning CV meaning CVP meaning CVT meaning CWA meaning CWI (contract) meaning CWOP meaning CWOR meaning CWTF meaning Cycle Gas meaning Cycle Time (drilling) meaning Cycle Time (plunger) meaning Cyclone meaning Cyclonite meaning D10/D95 meaning D40/D90 meaning Daily Drilling Report meaning Damage (formation) meaning Dampner or Dampener (flow line) meaning D&A meaning D&C meaning Darcy meaning Dart meaning DAS meaning Data Frac meaning Datum meaning Daughter meaning Daylight Tour meaning DB&B meaning DB meaning DC (drilling) meaning DCF (accounting) meaning DC meaning DCS meaning DCS (pipe) meaning DD&A meaning DDB meaning DDCV meaning DD meaning DDR meaning Dead Carbon (shale) meaning Dead Leg (pipeline) meaning Dead Line (lift systems) meaning Deadman meaning Dead Oil meaning Dead Time meaning Dead Well meaning Deaerator meaning Dealloying (corrosion) meaning Dean Number meaning De-Bottlenecking meaning Decay Rate meaning Decentralizing Arm meaning Decision Tree (Risk) meaning Decline Curve meaning Decommision meaning Decompression Damage (gas effects on seals) meaning Deconvolution (seismic) meaning Deep Investigation meaning Deep Marine Chalks meaning Deep Penetrating Charge meaning Deep Propagation Log meaning Deferred Production meaning DE (filter) meaning Deflagration meaning Deflection (drilling) meaning Deflection meaning Deflocculation meaning Defoamer meaning Degasser meaning Degrees API meaning Dehydrator meaning De (hydraulics) meaning Delayed Gamma Ray meaning Delineation Well meaning Deliquification meaning Deliverability meaning Deltas meaning Delta t meaning DE meaning Demonstrated Reserves meaning Demulsifier meaning Dendritic Drainage meaning Densitometer meaning Density Contrast (seismic) meaning Density-Depth Function (seismic) meaning Density Log meaning Density meaning Departure Curves meaning Departure meaning Depletion meaning Depletion Plan meaning Deposit Attack meaning Depositional Energy meaning Depositional Environment meaning Depreciation, Accelerated meaning Depreciation, Asset Depreciation Range meaning Depreciation, Declining Balance meaning Depreciation, Flow Through meaning Depreciation, Liberalized meaning Depreciation, Normalized meaning Depreciation, Straight Line meaning Depreciation, Sum of the Years meaning Depreciation, Units of Production meaning Depth Datum meaning Depth Migration (seismic) meaning Depth of Investigation meaning Derrickman meaning Derrick meaning Desander / Desilter meaning Desorption meaning Detail Log meaning Detectable Limit meaning Deterministic Estimate (Risk) meaning Detridal meaning Developed Reserves (reservoir) meaning Development Well meaning Deviated Well meaning Deviation Angle meaning Deviation Survey meaning Devonian meaning Dewatering (fluids separation) meaning Dew point meaning DFIT meaning DF meaning DFP meaning DGLV meaning DGMK meaning DG Plug meaning DHC meaning DHD meaning DHFC meaning DHPG meaning DHSV meaning DHTV meaning DHV meaning DHVTM meaning Diagenesis meaning Diagenetic Porosity meaning Diagenetic Trap meaning Diamond bit or mill meaning Diapir meaning Diatomaceous Earth meaning Dielectric meaning Diesel 1 meaning Dies meaning Differential Pressure meaning Differential SP meaning Differential Sticking meaning Diffusion meaning DIF meaning Dike meaning Dilatancy (rock) meaning Dilatant Fluid meaning DIL meaning Diluent meaning Dimple Connector (coiled tubing) meaning DIMS meaning Dip Log meaning Dip meaning Dip Meter meaning Dip Slip Fault meaning Dip Tube meaning Directional Driller meaning Directional Drilling meaning Directional Permeability meaning Directional Survey meaning Dirty meaning Disaggregation meaning Disbond meaning Disconformity meaning Discontinuous Lenticular Sands meaning Discordant meaning Discovered Petroleum Initially in Place meaning Discovered (reserves) meaning Discovery Well meaning Dispersant meaning Dispersed meaning Dispersed Phase meaning Dispersion meaning Displacement Efficiency meaning Displacement (horizontal well) meaning Displacement (process) meaning Displacement (volume) meaning Disposal Well meaning Dissimilar Metals meaning Dissociation meaning Dissociation Porosity meaning Dissolved Gas Drive meaning Dissolved GasOil Ratio meaning Dissolved Gas (production) meaning Distillates meaning Distributed Temperature Log meaning Ditch Gas meaning Divergence meaning Diversion (fluid treating) meaning Diverter (acidizing) meaning Diverter (wellhead) meaning Division Order meaning DLL meaning DLS meaning DMD meaning DMO (seismic) meaning DMUR meaning DNL meaning DnV Det Norske Veritas meaning DOE meaning Dog House meaning Dog Leg meaning Dog-Lock meaning Dolomite meaning Dolomite Rhombohedrials meaning Dome meaning Domestic production meaning Doodlebug meaning Dope meaning D.O.T. (government) meaning Double Block and Bleed meaning Double Board meaning Double Grip (packer) meaning Doubles (pipe) meaning Doughnut meaning Downcomer meaning Down Dip meaning Downhole Camera meaning Downhole Choke meaning Downhole Gauges meaning Downhole meaning Downhole Separation meaning Downhole Shutoff meaning Downstream meaning Down Stroke meaning DPC (gas lift) meaning DP (offshore rig) meaning DP (perforating) meaning DP (reservoir) meaning DPTA meaning DPT meaning DPU meaning DRA (flow) meaning Drag Blocks meaning Drag (fluid flow) meaning Drag (pipe movement) meaning Drawdown meaning Draw Works meaning DRBA meaning Dress meaning Dress Off meaning DRGL meaning Drift Diameter meaning Drift (geological) meaning Drift (pipe gauge) meaning Drift (tool) meaning Drillable meaning Drill Bit meaning Drill Collar meaning Drill Cuttings meaning Driller’s Console meaning Driller’s Depth meaning Driller’s Method meaning Drill-In Fluid meaning Drilling Ahead meaning Drilling Break meaning Drilling Efficiency meaning Drilling Hook and Swivel meaning Drilling Line meaning Drilling meaning Drilling Mud meaning Drilling Out meaning Drilling Platform meaning Drilling Rig meaning Drilling Spool meaning Drill Motor meaning Drill Out meaning Drill Pipe meaning Drill Pipe Safety Valve meaning Drill Stem meaning Drillstem Test or DST meaning Drill String meaning Drip Gas meaning Drip meaning Drip Oil meaning Drive Pipe meaning DRODB meaning Drop Ball meaning Drop Bar (perforating) meaning Dry Gas (in production) meaning Dry Gas (reserves) meaning Dry Gloss Heating Value (reactions) meaning Dry Hole meaning Drying Oil meaning Dry Sieve Method meaning Dry Tree Well meaning DSI meaning DSL meaning DS meaning DS meaning DS meaning DST meaning DSV meaning D/t meaning D/t (pipe) meaning DTS meaning Dual completion meaning Dual Induction Log meaning DUB (perforating) meaning Dummy Run meaning Dummy Valve meaning Dump Bailer meaning Dump Flood meaning Dune meaning Duplex pump meaning Duplex Steel meaning Durometer (rubber) meaning Duster meaning Dutchman meaning DV Tool (cementing) meaning DWD meaning DW meaning DWOP (BP) meaning DWOP meaning DWP meaning DXV (subsea) meaning Dynamic Event (propellant fracturing) meaning Dynamic Flow meaning Dynamic Seal meaning Dynamic Viscosity (produced fluid) meaning Dynamometer meaning DZO (seismic) meaning E&A meaning E&P meaning Eccentricity meaning ECD meaning Echo MeterTM meaning Economic Interest meaning Economic Limit meaning EconoPropTM meaning Ecorr meaning ECP meaning ECTFE meaning eCTU meaning ED (elastomers) meaning Edge water meaning EDP (subsea) meaning EDTA meaning Eductor meaning Effective Permeability meaning Effective Porosity meaning Effective Shot Density meaning Effective Stress (fracturing) meaning Effective Wellbore Radius meaning Effluent meaning EGMBE meaning EGM meaning EGP meaning EIA meaning Eight Round meaning EIS meaning EIT meaning EL&P meaning Elastic Deformation meaning Elasticity meaning Elastic Limit meaning Elastic meaning Elastomer meaning Elbow meaning Electrical Log meaning Electrical Submersible Pump or ESP meaning Electric Line or E-Line meaning Electric Logging meaning Electric Rig meaning Electric Submersible Pump meaning Electrolyte meaning Electromotive Force Series (corrosion) meaning Electrostatic Treater meaning Elevator Bails or Links meaning Elevators meaning ELG meaning E-Line meaning ELMD meaning ELMD meaning EL meaning Elongation meaning Embedment meaning Embrittlement meaning EMF meaning EM meaning Empirical meaning Emulsifier meaning Emulsion meaning Emulsion Stabilizer meaning EMW meaning Encapsulated breaker meaning End of Well Report meaning Endothermic meaning Endurance Limit meaning Enhanced Oil Recovery meaning Entitlement (reserves/production) meaning Entrained Gas meaning Environmental Cracking meaning Enzyme meaning EOB meaning Eocene meaning EOC meaning Eolian meaning Eon meaning EOP meaning EOR meaning EOS meaning EOT meaning EOWR meaning EPA meaning EPCRA meaning EP meaning EPM meaning Epoch meaning Epoxy meaning EPT meaning EQMW meaning Equalizing Feature meaning Equivalent Circulating Density meaning Equivalent Mud Weight meaning Equivalent Weight meaning Era meaning ERD meaning ERFC(x) meaning ERF meaning Erosion Corrosion meaning Erosion meaning Erosion meaning ERW meaning ESD meaning ESD meaning ESDS meaning ESP meaning ESR meaning ESS (sand control) meaning ESS (seismic) meaning ES (treating) meaning ESV meaning ES (wireline) meaning Ethane meaning Ethanol meaning Ethernet (computer) meaning Ethylene meaning ETP (BP) meaning Euler Method (seismic) meaning EU or EUE meaning EUR meaning Eutectic (brine) meaning Evaporite meaning Event (Risk) meaning EVXT-DB (subsea) meaning EVXT-SB (subsea) meaning EVXTTM (subsea) meaning Excess Cement meaning Exfoliation Corrosion meaning EXHTTM (subsea) meaning Exothermic meaning Expandable Casing meaning Expandable Completions meaning Expandable Hanger meaning Expandables meaning Expanding Cement meaning Expansion Joint meaning Expectancy meaning Expected Value (Risk) meaning Expendable Gun (perforating) meaning Exploitation meaning Exploration meaning Exploration Well meaning Explosive Cutter meaning Explosive Decompression meaning Explosive Fracturing meaning Explosive Limits meaning Exponential Decline meaning Exposed Guns meaning Extended Reach Well or ERW meaning Extension Well meaning External Cage Choke meaning External Casing Packer meaning External Cutter meaning External Filter Cake meaning External Phase meaning External Upset meaning Extraction Loss (produced fluids) meaning Extraction Plant meaning Extreme Overbalance Perforating meaning Extrusion Gap meaning Extrusive Igneous Rock meaning EZSVTM meaning Face Cleat (coal) meaning Face Seal meaning Facies meaning Facultative (bacteria) meaning Failure meaning Fairway meaning Fall-Off Test meaning False Set meaning Fanning Equation (or friction factor) meaning Fann Viscometer meaning Farmer’s Oil meaning Farm-In meaning Farm-Out meaning Fast Gauges meaning Fast Line (drilling) meaning Fast Taper meaning Fatigue meaning Fatigue Strength meaning Fault meaning Fault Plane meaning Fault Trap meaning FBHP meaning FBP meaning FCD meaning FC meaning FCP meaning FCP meaning FCS (fracturing) meaning FCTA (brine) meaning FCV meaning FDC meaning FDCNL meaning FDP meaning FeCO3 meaning Feed In meaning Fee Land (contract) meaning Feet of pay meaning Feldspar meaning Female connection meaning FE meaning FeOH meaning FEPM meaning FERC meaning Ferric Iron meaning Ferrite meaning Ferrous Iron meaning FeSx meaning FFI (logging) meaning FFKM meaning FF meaning FFM meaning FGLR meaning Fg meaning FGOR meaning Fiber Cement meaning Field meaning Field Rules meaning Field Weld meaning Filiform Corrosion meaning Filter Cake Lift-Off meaning Filter Cake Lift-Off Pressure (drilling) meaning Filter Cake meaning Filter Media meaning Filter Press meaning Filtrate meaning Filtrate Reducers meaning Filtration Level meaning Final Circulating Pressure meaning Final Set meaning Final Strength meaning Finding and Development Costs meaning Fines Control meaning Fines Migration meaning Finger Board (drilling) meaning Fingering meaning Fire Flood meaning Fischer Assay meaning Fisheyes meaning Fish Hook meaning Fishing Magnet meaning Fishing Neck meaning Fishing Tools meaning Fish meaning Fishtail Bit meaning Fissile (rock) meaning FIT (fracturing) meaning FIT (operations) meaning Five Spot Pattern meaning FIV meaning Fixed Choke meaning FKM meaning Flag meaning Flanged Up meaning Flange meaning Flapper Valve meaning Flare meaning Flashing meaning Flash Liberation meaning Flash (pipe) meaning Flash Point meaning Flash Set meaning FLC (completions) meaning FLC (operations) meaning FL (drilling/completions) meaning Flexing meaning Flint meaning Float Collar meaning Float Shoe meaning Float Valve meaning Flocculants meaning Flocculation meaning F (logging) meaning Flood meaning Flood Plain meaning Floorhand meaning FL (operations) meaning Flow-After-Flow meaning Flow Assisted Corrosion meaning Flow Assurance meaning Flow Back meaning Flow Bean meaning Flow Coupling meaning Flow Cross meaning Flow Divider (screen) meaning Flow Efficiency meaning Flowing Pressure meaning Flowing Well meaning Flowline meaning Flow Line meaning Flow Loop meaning Flow meaning Flow Path meaning Flow Profile meaning Flow Regime meaning Flow Test meaning Flow T or Tee meaning Flow Tubes meaning Flow Wetted meaning Fluid Contact meaning Fluid Density meaning Fluid Invasion meaning Fluidize meaning Fluid Loss Coefficient meaning Fluid Loss meaning Fluid Packed meaning Fluid Pound meaning Fluid Pressure Gradient meaning Fluid Saturation meaning FLUORAZ meaning Fluorocarbon meaning Fluoroscope meaning Flushed Zone meaning Flush Joint meaning Flush Production meaning Fly Ash meaning Flying Leads (subsea) meaning FMEA meaning FMECA meaning FMI meaning FMJ (control line) meaning FMWTR meaning F Nipple meaning FN meaning Foam Breaker meaning Foam Cement meaning Foam meaning FOC meaning Fold meaning FO meaning Foot Wall meaning Formaldehyde meaning Formate meaning Formation Breakdown meaning Formation Competency meaning Formation Damage meaning Formation Evaluation meaning Formation Gas-Oil Ratio meaning Formation Integrity meaning Formation Integrity Test meaning Formation meaning Formation Pressure meaning Formation Resistivity meaning Formation Sensitivity meaning Formation Volume Factor or FVF meaning Formation Water meaning Formic Acid meaning FoRxo Log meaning Fossil Fuel meaning Fossil meaning Fouling meaning Four Point Test meaning FPC meaning FPH meaning FPIT meaning FPP meaning FPSO meaning FPU meaning FPWD meaning Frac Ball meaning Frac Fluid meaning Frac Plug meaning Fractionation meaning Fracture Acidizing meaning Fracture Breakdown Pressure meaning Fracture Closure Pressure meaning Fracture Effective Length meaning Fracture Extension Pressure meaning Fracture FinderTM Log meaning Fracture Fluid Efficiency meaning Fracture Fluids meaning Fracture Gradient meaning Fracture Half Length meaning Fracture Initiation Pressure meaning Fracture Network meaning Fracture Packing meaning Fracture Pad meaning Fracture Porosity meaning Fracture Propagation Pressure meaning Fracture Proppant Pack Density meaning Fracture Width meaning Fracturing Fluids meaning Fracturing meaning Fragipan meaning Fragmental Source Sedimentary (rock) meaning FRA meaning Frangible Valve meaning FRC meaning Free Gas meaning Free Point and Backoff meaning Free Point Constant meaning Free Point Indicator meaning Free Point meaning Free Water Knockout meaning Free Water meaning Freeze point (pipe movement) meaning Frequency Domain (seismic) meaning F (reservoir) meaning Fresh Water meaning Fretting Corrosion meaning Friable Sand meaning Friction Coefficient meaning Friction Lock (coiled tubing) meaning Friction meaning Friction Reducer meaning Front-end Costs meaning FrontSimTM meaning Froth meaning FRP meaning FRP meaning FRUCOS meaning FSN meaning FSP meaning FSV (completions) meaning FTC (SSSV) meaning FTH meaning FTHP meaning FTO (SSSV) meaning FTP meaning FTR meaning Fuel Oil meaning Full Gauge Hole meaning Funnel Viscosity meaning Furan meaning Fusible Plug or Link meaning Fusible Vent meaning FVF meaning FV meaning FWHP meaning FWHT meaning FWKO meaning FW meaning FWS meaning Gage Joint meaning Gaging Nipple meaning Galena meaning Galling meaning Galvanic Anode meaning Galvanic meaning Galvanic Series meaning Galvanometer meaning Gamma Ray Index meaning Gamma Ray Log or GR meaning Gamma (seismic) meaning G&G meaning Gang Pusher (rig) meaning Gang (rig) meaning Gap Test (perforating) meaning GAPTM meaning Gardner’s Equation (seismic) meaning Gas Anchor meaning Gas Buster meaning Gas Cap Drive meaning Gas Cap meaning Gas Condensate meaning Gas Coning meaning Gas Cut meaning Gas Drive meaning Gas Effect (on logs) meaning Gas Formation Volume Factor meaning Gas Gatherer meaning Gas Gravity meaning Gas Hydrate meaning Gasification meaning Gas Injection meaning Gas-In-Place meaning Gasket meaning Gas Kick (drilling) meaning Gas Lift Dummy meaning Gas Lift Mandrel meaning Gas Lift meaning Gas Lift Side Pocket Mandrel meaning Gas Lift Valve - Injection Pressure Operated Valve (gas lift) meaning Gas Lift Valve meaning Gas Lift Valve - Production Pressure Operated Valve (gas lift) meaning Gas Liquification meaning Gas Lock (facilities) meaning Gas Lock (pump) meaning Gas-Oil Contact meaning Gas-Oil Ratio meaning Gasoline meaning Gas Permeation meaning Gas Saturation meaning Gas Show meaning Gas Spiking meaning Gate Valve meaning Gathering Agreement (contract) meaning Gathering Line meaning Gather (seismic) meaning Gauge Carrier meaning Gauge Diameter meaning Gauge (drilling) meaning Gauge Hole meaning Gauge Pressure meaning Gauge Ring meaning Gauge (screens) meaning GCI meaning GC meaning GCV meaning GD meaning Gear Reducer meaning Geiger-Mueller Counter meaning Gel meaning Gel Strength (drilling) meaning Gel Strength meaning Geochemistry meaning Geologic Cross Section meaning Geology meaning Geophone meaning Geophysicist meaning Geophysics meaning Geopressured meaning Geo-steering meaning Geothermal energy meaning Geothermal Gradient meaning Geothermal Wells meaning Geronimo Line (rig) meaning G-function meaning GHG meaning GIIP meaning Gilsonite meaning GIS meaning GIV meaning GJ meaning Glacial Drift meaning GLADTM meaning Gland meaning Glass Disk meaning GL (datum) meaning GL (lift) meaning GLL (subsea) meaning GLM meaning GLR meaning GLV meaning Glycol Dehydrators meaning Glycol meaning G meaning Gneiss meaning GNFT meaning GOC meaning Go Devil meaning Gooseneck (coiled tubing) meaning GOR meaning GOS meaning GPF meaning GP/GL (subsea) meaning GPG meaning GPM meaning GPR meaning GPS meaning Graben meaning Graded Production Acreage (GPA) meaning Gradient meaning Gradiomanometer (well logging) meaning Gradiometer (seismic) meaning Grain Density meaning Grain (fluid loss additive) meaning Grain (formation) meaning Grainstone meaning Grand Slam meaning Granite meaning Granite wash meaning Grapple meaning Gravel meaning Gravel Pack Evaluation Tool meaning Gravel Pack Log meaning Gravel Pack meaning Gravel Reserve meaning Gravimeter meaning Gravimeter meaning Graviometer meaning Gravity Anomaly meaning Gravity (API) meaning Gravity Drainage meaning Gravity Meter meaning Gravity Specific meaning Gravity Survey meaning Gravity Unit (seismic) meaning Gray Shale meaning Graywacke meaning Grease Injector meaning Green Cement meaning GRI meaning Grind Out meaning Gripper Blocks meaning GR meaning GRN meaning Gross Acres meaning Gross Pay meaning Gross Production meaning Ground Bed meaning Ground Water meaning Grout meaning Growth Fault meaning GRP meaning Gscm meaning GS meaning GSO meaning GTL meaning GTS (well testing) meaning GTW meaning Guard Log meaning Guard Tool meaning Guar meaning Guide Ring meaning Guide Shoe meaning Gumbo meaning Gum meaning Gun Barrel meaning Gunk Plug meaning Gun meaning Gun the Pits meaning Gusher meaning Guy Wire (rigging) meaning GV meaning GWC meaning GWPC meaning Gyp meaning Gypsum or Gyp meaning Gyroscopic Survey meaning H2S meaning Hadian meaning Hairy Illite meaning Half-Life meaning Half Muleshoe meaning Halite meaning Hall Plot meaning Hammer Up meaning Hand-Over Document meaning Hanger meaning Hanger Plug meaning Hang Fire meaning Hanging Wall Block meaning Hang Rods meaning HAP meaning Hardness (metal) meaning Hardness (mineral) meaning Hardness (water) meaning Hardpan meaning Hard Shut-in meaning Hard Water meaning Hatch meaning Hazard meaning HAZ meaning HAZOP meaning HBP meaning HCl meaning HClO2 meaning HC meaning HCPV (reservoir) meaning H crossover or profile meaning HDPE meaning Heading (logging) meaning Heading (well flow) meaning Heat Affected Zone meaning Heater Treater meaning Heating Oil meaning Heat Transfer Coefficient meaning Heave (geology) meaning Heave (ship) meaning Heaving meaning Heavy Oil meaning HEC meaning Heel meaning HEGF meaning HEGS meaning Held by Production meaning Helical Buckling meaning Hematite meaning HE meaning Henry Hub meaning Hesitation Squeeze meaning HES meaning Heterogeneities meaning Heterogeneous meaning Hexafluorosilicates meaning HF meaning HHp meaning High Angle Well meaning High Anticlinal meaning High Density Basement (seismic) meaning High Pressure Water Cleaning meaning High Rate Water Pack meaning High Sulfur Oil meaning Hindered Settling meaning Hinge Fault meaning HIPPS (offshore) meaning Hipp TripperTM meaning hj meaning HLN meaning h meaning HMSV meaning HMX meaning HNBR meaning HNS meaning Hoist meaning Holdup (flow) meaning Hole Cleaning meaning Hole Opener meaning Holiday meaning Hollow Carrier meaning Holocene meaning Hook (drilling rig) meaning Hooke’s Law meaning Hook Load meaning Hook Wall Packer meaning Hopper meaning Horizon meaning Horizontal Drilling meaning Horizontal tree meaning Horizontal Well meaning Horner Plot meaning Horse Head meaning Horst meaning Hostile Environment (well) meaning Hot Oil meaning Hot Spot (mantle) meaning Hot Spot (shale) meaning Hot Stab meaning Hot Tap meaning Hot Work meaning HP (facilities) meaning HPG meaning HPHT meaning HP (incident) meaning HPLT meaning HP (well) meaning HRWP meaning HSE meaning HSFO meaning HS meaning HSP (fracturing) meaning HSP (lift) meaning HTHP meaning HUD meaning Huff and Puff meaning HWDP meaning HWHR (subsea) meaning HWO meaning HWU meaning HXT (subsea) meaning HYD meaning Hydrate meaning Hydrate Suppressants meaning Hydration meaning Hydraulic Centralizer meaning Hydraulic Disconnect meaning Hydraulic Diversion meaning Hydraulic Fracture meaning Hydraulic Hammer Effect meaning Hydraulic Head meaning Hydraulic Isolation meaning Hydraulic Pump meaning Hydraulic Set Packer meaning Hydraulics meaning Hydraulic Well Workover meaning Hydraulic Window (drilling) meaning HydrilTM meaning Hydrocarbon meaning Hydrochloric Acid meaning Hydrocyclone meaning Hydrofluoric Acid meaning Hydrogen Blistering meaning Hydrogen Embrittlement meaning Hydrogen Induced Cracking meaning Hydrogen Sulfide Cracking meaning Hydrogen Sulfide meaning Hydrometer meaning Hydrophilic meaning Hydrophobic meaning Hydrophone meaning Hydroset Tool meaning Hydrostatic meaning Hydrostatic pressure meaning Hydroxide meaning Hygroscopic meaning Hyperbolic Decline meaning IADC meaning IA meaning IAM meaning IAP meaning IAxOA meaning IBP meaning iChoke meaning IC meaning ICOTA meaning ICP meaning ICP meaning ICP meaning ICV (completion) meaning ICV (injection) meaning ID Drift (of pipe) meaning Ideal Gas meaning ID meaning IDm meaning IDn meaning IEEE meaning IEM meaning IFP meaning IFT meaning IGLR meaning Igneous Rock meaning IGP meaning IGRF (seismic) meaning II (injection well) meaning ILD (logging) meaning Illite meaning ILM (logging) meaning Imbibition meaning IMF meaning Immature Oil meaning Impact (in risk analysis) meaning Impedance meaning Impeller meaning Impermeable meaning Impressed Current meaning Impression Block meaning Impression Packer meaning Improved Oil Recovery or IOR meaning Impulse-Fracture Testing meaning IM Standard (BP) meaning Inc (drilling) meaning Inclination (wellbore) meaning Inclusion (corrosion) meaning Incompatible Waters meaning Independent meaning Index Fossils meaning Indexing Tool meaning Indicator (chemical) meaning Indicator (mechanical load) meaning Induced Spectral Gamma Ray Log meaning Induction Log meaning Inert meaning Infant Failure meaning Infill Drilling meaning Infinite Acting Reservoir meaning Inflatable Packer meaning Inflow Performance Relationship meaning Influx meaning Inhibitor Intensifier meaning Inhibitor meaning Inhibitor Truck meaning Initial Circulating Pressure meaning Initial Gel Strength meaning Initial Potential meaning Initial Reservoir Pressure meaning Injection Gas meaning Injection Log meaning Injection Pressure Operated Valve (gas lift) meaning Injection Valve meaning Injection Well meaning Injection-Withdrawal Ratio meaning Injectivity Index meaning Injector Head (coiled tubing) meaning Inland Barge Rig meaning Insert pump meaning Inside Blowout Preventer meaning In-situ Coal Gasification meaning In-Situ Combustion meaning In-Situ meaning In-situ stress meaning Instrument Hanger meaning Insulated Flange meaning Insulated Tubing meaning Intangible Drilling Costs meaning Integrated meaning Integrity Management meaning Intensifier meaning Intercrystalline corrosion meaning Interface Treatment meaning Interference (perforating) meaning Intergranular Corrosion meaning Intermediate Base Oil meaning Intermediate Casing meaning Intermittent Lift or Flow meaning Intermitter meaning Internal Cutter meaning Internal Filter Cake meaning Internal Rate of Return meaning Internal Upset meaning Interstitial Water meaning Intervention meaning Intrusion meaning Invaded Zone meaning Invasion (drilling or workover) meaning Inverse Modeling (seismic) meaning Invert Emulsion meaning Invert Mud meaning IOGCC meaning Ion Exchange meaning Ionic Bond meaning Ion Milling meaning IPAA meaning IPA meaning IPC (field capacity) meaning IP (facilities) meaning IPL meaning IPR meaning IP (technology) meaning IPTT meaning IRISTM meaning IR meaning Iron Control meaning Iron Hydroxide meaning Iron Reducer meaning Iron Roughneck meaning Iron Scales meaning Irreducible Water Saturation meaning ISA meaning Isenthalpic meaning ISIP meaning ISISTM meaning Isobar map meaning Isochronal test meaning Isochrone meaning ISO meaning Isopach meaning Isoproponal meaning Isosaturation meaning Isothermal meaning Isotope meaning Isotropic meaning ISP meaning ISRS meaning ISSSV meaning IUD meaning IU meaning IVICV meaning IWOCS (subsea) meaning Jack (beam lift) meaning Jacket (platform) meaning Jack Knife Rig meaning Jack-Up Rig meaning Jar Accelerator meaning Jar meaning Jerk Line (drilling rig) meaning Jet Charge meaning Jet Cone Mixer meaning Jet Cutter meaning Jet Fuel meaning Jet Mixer meaning Jet Nozzle meaning Jet Perforating meaning Jet Pump meaning Jetting meaning J meaning JOA meaning Joint (connection) meaning Joint (geological) meaning Joint Operating Agreement meaning Joint (pipe length) meaning Joint Venture meaning Joule-Thompson Effect meaning Journal Bearing meaning J Profile meaning JRA meaning JRCTM meaning JSA meaning J-Slot meaning JT (gas) meaning Jug meaning Junction (multilateral) meaning Junk Basket meaning Junk meaning Junk Mill meaning Junk Retriever meaning Jurassic meaning KALREZTM meaning Kaolinite meaning Karst meaning Kbbl/d meaning KB meaning KCl meaning KCOOH meaning Kelly Bushing meaning Kelly Cock meaning Kelly Down meaning Kelly meaning Kelly Saver Sub meaning Kelly Spinner meaning Kerogen meaning Kerogen Type 1 meaning Kerogen Type III meaning Kerogen Type II meaning Kerogen Type IV meaning Kerosene meaning KEVLARTM meaning Keyseat meaning kh meaning kh meaning Kick meaning Kick-Off Point meaning Kick Off Pressure (gas lift) meaning Kickover Tool meaning Kill and Block Valve meaning Kill Fluid meaning Kill Lines meaning Kill meaning Kill Pill meaning Kill Spool meaning Kill Weight Fluid meaning Kilojoule meaning Kilo meaning Kilopascal meaning Kinematic Viscosity meaning Kinetic Hydrate Inhibitor meaning Kinley CaliperTM meaning Kitchen meaning KJ meaning kj (rock) meaning Kl/d meaning Klinkenberg Permeability meaning k meaning KM meaning Knockout meaning Knuckle Joint meaning KOP meaning KOT meaning kPa meaning KPI meaning KP meaning Krg meaning Kriging (seismic) meaning Kro meaning Krw meaning KT meaning Kuff (process) meaning K Valve meaning K (viscosity) meaning kv meaning Kwm (drilling) meaning LACT meaning Lagoonal Deposits meaning Lag Time meaning Lamellar Corrosion meaning Laminar Flow meaning Laminar friction meaning Laminated Sands meaning Laminations (geological texture) meaning LAN (computer) meaning Land Casing meaning Landing Nipple meaning Landman meaning Langelier Index meaning Langmuir Isotherm (gas adsorption) meaning Laplace’ Law meaning Lap meaning LAP (packer) meaning Laser Distribution meaning Laser meaning Latch meaning Latch On meaning Lateral length meaning Lateral (load) meaning Lateral (wellbore) meaning Laterlog meaning Latex meaning Lava meaning Law of Capture (hydrocarbon movement) meaning Layer meaning Laying Down Pipe meaning LCA meaning LCM meaning LCP meaning LCTD meaning LDC (transport) meaning LDFN meaning LDHI (hydrates) meaning LD meaning LDPE meaning LDS (wellhead) meaning Lead Cement meaning Lead Lines (pipeline) meaning Leak Off Rate meaning Leak-Off Test meaning Lean Gas meaning Lease (drilling) meaning Lease Hound meaning Lease Setback meaning Least Principal Stress meaning LEL meaning Lens meaning Levelwind meaning LIB meaning Lift Cost meaning Lift Curve meaning Lifting Cost meaning Lifting Frame meaning Lifting Sub meaning Lift-Off Pressure (mud) meaning Light Crude meaning Light Ends meaning Light Weight Cement meaning Lignite meaning Ligosulfonates meaning LIH meaning LIL meaning Limited Entry meaning Linear Darcy Law meaning Linear Gel meaning Line Drive meaning Liner (casing) meaning Liner Hanger meaning Liner Lap meaning Liner (perforating charge) meaning Liner (sand control) meaning Liner Tie-Back meaning Liquefied Natural Gas or LNG meaning Liquefied Petroleum Gas or LPG meaning Liquid Holdup meaning Liquid Level meaning Lithification meaning Litho-DensityTM Log meaning Lithofacies Map meaning Lithologic Log meaning Lithology meaning Lithosphere meaning Lithostatic Pressure meaning Live Carbon (shale) meaning Live Oil meaning Live Well Workover meaning LLD (logging) meaning LLRT meaning LLS (logging) meaning LMRP meaning LNFT-IA meaning LNG meaning Load Cell meaning Load Fluid meaning Lock meaning Loess meaning Logged Depth meaning Logging While Drilling meaning Log Header meaning Log-Inject-Log meaning Log meaning Long Radius Well meaning Long String meaning LOP (production) meaning LOP (rock mechanics) meaning LO (reservoir fluid) meaning Losal meaning Lost Circulation Control Agent or LCA meaning Lost Circulation Materials or LCM meaning Lost Circulation meaning Lost Circulation Zone meaning Lost Pipe meaning Lost Returns meaning LOT (drilling) meaning Low Alloy Steel meaning Low Carbon Steel meaning Low Energy System (geologic) meaning Lower Completion meaning Lower Crown Plug (subsea) meaning Lower Kelly Valve meaning Low Pressure Squeeze meaning Low Pressure Water Cleaning meaning Low Solids Mud meaning LP (facilities) meaning LPG meaning LPSA meaning LPSD meaning LPS (downhole gauge) meaning LPS meaning LPT (downhole gauge) meaning LRP meaning LSA (scale) meaning LSFO meaning LS meaning LSOBM meaning LTA meaning LT&C meaning LTA (seals) meaning LTBS meaning LTOBM meaning LTRM meaning LTS (downhole gauge) meaning LTSI meaning LTS meaning LUB meaning Lubricants meaning Lubricator meaning Lubricity meaning LWD meaning LWL meaning LWRP meaning Lyohilic meaning M3 meaning MAASP meaning Macaroni String meaning Magma meaning Magnetic Basement (seismic) meaning Magnetometer meaning Main Bore meaning Major meaning Make A Trip meaning Make Hole meaning Make-Up meaning Make Up Tongs meaning Male Coupling meaning Maltene meaning Managed Pressure Drilling meaning Mandrel meaning Manifold meaning Mantle meaning Maraseal meaning Marble meaning Marcit meaning Mare’s Tail (process facility) meaning Marginal Field meaning Marginally Consolidated meaning Marine Riser meaning Marker (circulation) meaning Marker (formation) meaning Marker Fossils meaning Marsh Funnel meaning Martensite meaning MASP meaning Master Bushing meaning Master Valve meaning Mast (rig up) meaning Material Safety Data Sheet meaning Matrix Acidizing meaning Matrix meaning MAWP meaning Maximum Allowable Working Pressure meaning Maximum Efficient Rate meaning Maximum Principal Stress meaning MaxIP meaning Mbal meaning MBD meaning MBE (heavy oil) meaning MBE (reservoir) meaning MBPD meaning MBT meaning Mcf meaning MCS meaning mD (frequently shown incorrectly as md) meaning MD meaning MDRT meaning MDT meaning Meandering Stream meaning Measured Depth meaning Measurement While Drilling meaning Mechanical Filter meaning Mechanical Integrity Test meaning Mechanical Jar (wireline tools) meaning Medium Radius meaning MEG meaning Memory Logs meaning Memory Tool meaning Meniscus meaning MeOH meaning MEOR meaning Mercaptan meaning Mercury Pore Measurement or Porosimetry meaning MER meaning Mesh meaning MeshriteTM meaning Mesozoic meaning Metallizing meaning Metal-to-Metal Seal meaning Metamorphic meaning Meter Factor meaning Meter Slippage meaning Methane meaning Methanol meaning Metocean meaning Metric Ton meaning MFCT meaning MFE meaning MFP meaning MFT meaning mGal (seismic) meaning MGI meaning MGL meaning Mica meaning Micelle meaning Microbeads or Microballoons meaning Micro Cement meaning Microemulsion meaning Microgels meaning Microlaterlog meaning Micro Log meaning Micron meaning Micron Rating meaning Microorganisms meaning Micropolishing meaning Microporosity meaning Microseismic meaning Micro-Seismic meaning Microseism meaning Middle Distillates meaning Midstream (operations) meaning MI (flooding) meaning Migration (fluids) meaning Migration (seismic) meaning Millidarcy meaning Milligal (seismic) meaning Milli meaning Milling meaning Mill meaning Millout Extension (packer) meaning Mill Scale meaning Mils Per Year meaning MI meaning Mineral meaning Mineraloid meaning Mineral Rights meaning Minerals Management Service meaning Mini Frac meaning Minimum Bend Radius meaning Minimum Principal Stress meaning Miocene meaning MIR meaning MIRU meaning Miscible Gas Drive meaning Miscible meaning Misfire meaning Mississippian meaning Mist Flow meaning MIT-IA meaning Mitigation meaning MIT meaning MIT- OA meaning MIT-T meaning Mixed Layer Clays meaning Mixing Tank meaning MJ meaning ML meaning m (logging) meaning MLT meaning MMbls meaning MMcf meaning MMH mixed metal hydroxide meaning MMO meaning MMscf (gas volume) meaning MMS meaning Mobility Ratio meaning Mobilize meaning MOC meaning Model D Packer meaning Modified Isochronal Test meaning Modular Perforating Gun meaning Modulus of Elasticity meaning MODU meaning MOE meaning Mohr-Coulomb meaning Mohs Scale meaning Monkey Board meaning Monobore meaning Monocline meaning Monolayer meaning Monte Carlo Risk Assessment meaning Montmorillonite meaning Moon Pool meaning MOP (LWD) meaning Mosquito Bill meaning Motherbore meaning Mouse Hole meaning Moveout (seismic) meaning MPa meaning MPD meaning MPLT meaning MPY meaning mrem meaning mrem/yr meaning MSA meaning MSA (regulations) meaning MSCF (gas volume) meaning MSDS meaning MSFL (logging) meaning ms meaning MSV meaning MTBE meaning MTBF meaning MT meaning MTR meaning MTTF mean time to failure meaning Mud Acid meaning Mud Anchor meaning Mud Balance (fluid density) meaning Mud Cake meaning Mud Cup meaning Mud Density meaning Mud Displacement Flush meaning Mud Engineer meaning Mud Filtrate meaning Mud Flow Through Screens meaning Mud Logger meaning Mud Log meaning Mud Loss meaning Mud meaning Mud Motor meaning Mud Pit Level Indicator and Alarm meaning Mud Pit meaning Mud Pulse meaning Mud Pump meaning Mudstone meaning Mud Tracer meaning Mud Up meaning Mud Weight meaning Mule Shoe meaning Multicomponent Seismic meaning Multi-Finger Caliper meaning Multi-Lateral meaning Multi-Phase Flow meaning Multiple Completion meaning Multi-Pointing meaning Multi-Stage Cementing meaning MU meaning Mutual Solvent meaning MWD meaning MW meaning MWP meaning MWPT meaning MylarTM meaning Mysid Shrimp meaning MZ meaning NACE meaning NaCl meaning Nanometer meaning Nanotesla (seismic) meaning NaOH meaning Naphthalene Base Oil meaning Naphthalene Flakes meaning Naphtha meaning Native State Core meaning Natural Clays meaning Natural Completion meaning Natural Fracture meaning Natural Gas Liquids meaning Natural Gas meaning Natural Gasoline meaning Naturally Flowing Well meaning Naturally Occurring Radioactive Material meaning Natural Seep meaning NBR meaning ND meaning NDT meaning Near Wellbore Damage meaning Neat Cement meaning NEB meaning NEC meaning Needle and Seat Choke meaning Needle Valve meaning NEO meaning NEPA meaning Neritic meaning NESHAPs meaning Net Acres meaning Net Back meaning NETL meaning Net Pay Cutoff meaning Net Pay meaning Net Production meaning Net Profits Interest meaning Net Revenue Interest meaning Net-To-Gross Ratio meaning Network Fractures meaning Neutralization (processing) meaning Neutralization (stimulation) meaning Neutral Point meaning Neutron Capture meaning Neutron Log meaning Newtonian Fluid meaning NFT meaning NGL meaning NGV meaning NH4Cl meaning Night Toolpusher meaning Nipple Down meaning Nipple Profile meaning Nipple Protector meaning Nipple (tubular string) meaning Nipple Up meaning NIR meaning Nitride meaning Nitrified Fluid meaning Nitrile meaning Nitrile meaning NITR meaning Nitrogen Cushion meaning Nitrogen Kickoff meaning Nitrogen Lift meaning Nitro Shot meaning NLL meaning n (logging) meaning Nm3 meaning NMO (seismic) meaning NMR meaning Nodal Analysis meaning Nodding Donkey meaning Node meaning NOEL meaning No Go meaning Noise Log meaning Nolte G-function meaning Nolte-Smith Plot meaning Nominal (in filtration) meaning Non Associated Gas meaning Nonclastic meaning Non Conductive Mud meaning Nonconformity meaning Non Conventional Gas meaning Non Darcy Flow meaning Non Dispersed meaning Non Emulsifier meaning Nonionic Surfactant meaning Non Marking Slips meaning Non Newtonian meaning Non-producing meaning Non-Producing Reserves meaning Non Selective Nipple meaning Non-Stress Preferred Fracture Plane meaning Non Upset or NU Connection meaning Normal Circulation meaning Normal Fault meaning Normalizing (pipe) meaning Normally Pressured meaning NORM meaning NORSOK meaning North Sea Brent meaning NOx meaning Nozzle meaning NPDES meaning NPD meaning NPH meaning NPT meaning NRe meaning NR meaning NRV (flow line) meaning NRWO meaning NTA meaning NTEL meaning NTU meaning Nuclear Log meaning NU (pipe) meaning NU (repairs) meaning n (viscosity) meaning NYDEC meaning Nylon meaning O3 meaning OA (logging) meaning OAP meaning OA (well design) meaning OBR oil meaning Observation Well meaning Observation Well meaning Obsidian meaning OBS meaning OC meaning OC meaning OCS meaning OCS Orders meaning Octane meaning OCTG meaning OD/ID meaning OD meaning Off -pattern Well meaning Offset Well meaning Offshore Platform meaning Offshore Well meaning OFP meaning OGIP meaning OGLV meaning OGP meaning OHFP meaning OHGP meaning OH meaning Ohm meaning Ohm’s Law meaning Oil Based Mud meaning Oil Column meaning Oil Emulsion Mud meaning Oilfield Services meaning Oil-In-Place meaning Oil-in-Water Emulsion meaning Oil Jar meaning Oil Pool meaning Oil Run meaning Oil Sand meaning Oil Saturation (reservoir) meaning Oil Saver meaning Oil Shale meaning Oil-Water Contact meaning Oil Wet Rock meaning Oil Zone meaning OIM meaning OIP meaning OIW meaning OJ meaning OJT meaning Oleofinic Hydrocarbon meaning Oligocene meaning On-Pump meaning On Structure meaning On-The-Fly (in mixing) meaning OOC (North Sea) meaning OOIP meaning Oolite meaning OOS meaning OPA meaning OPEC meaning Open Flow Potential meaning Open Formation meaning Open Hole Completions meaning Open-Hole Fishing meaning Open Hole Gravel Pack meaning Open Hole Log meaning Open Hole Packer meaning Open Hole Perforating meaning Opening Ratio meaning Open Shoe meaning Operating Gas Lift Valve meaning Operator meaning OPEX meaning OP (gas lift) meaning Ordovician meaning Ore meaning ORF meaning Organic Acid meaning Organic Deposit meaning Organic Theory meaning Oriented Perforating meaning Orifice (gas lift) meaning Orifice Meter meaning Orifice Plate meaning Original Gas in Place meaning O-Ring meaning Orogeny meaning Orphan Wells meaning OSHA meaning OS meaning Osmosis meaning OTC meaning Ottawa Sand meaning Outcrop meaning Outer Continental Shelf (MMS) meaning Outgassing meaning Ovality Limit (CT) meaning Ovality meaning Overbalance meaning Overburden meaning Overflush meaning Overlap meaning Overlift meaning Overpull meaning Overriding Royalty Interest (contract) meaning Overshot meaning Overthrust meaning OWC meaning OWR oil meaning Oxbow Lake meaning Oxidizers meaning Oxygen Activation Survey meaning Oxygen Index (shale) meaning Packer Bore Receptacle meaning Packer Elements meaning Packer Fluid meaning Packerless Completions meaning Packer meaning Packer Milling meaning Packer Squeeze Cementing meaning Packing Element meaning Packing off meaning Packing (seals) meaning Packoff meaning Pack-Off meaning PACV meaning Paddle Blender or Mixer meaning Pad meaning Paleocene meaning Paleontology meaning Paleozic meaning PAL (lift) meaning PAL (log) meaning PAL meaning P&A meaning P&ID meaning Paraffin base oil meaning Paraffin meaning Paraffin Scraper or Scratcher meaning Parent meaning Parted Rods (beam lift) meaning Partial Completion meaning Partial Monolayer meaning Partial Penetration meaning Partial Pressure meaning Particle Distribution meaning Particulate Matter meaning Parts Per Million or PPM meaning Pascal meaning Passivation (corrosion) meaning Passive meaning Patch (tubular) meaning Pattern Water Flood meaning Payoff meaning Payout meaning Pay Zone meaning PB meaning Pb (reservoir fluids) meaning PBR meaning PBTD meaning PBU meaning PCL (SSSV) meaning PC meaning PCP meaning PCP meaning PCT (brine) meaning PCT (brine) meaning PCT (tool) meaning PDC Log meaning PDC meaning PD (gas lift) meaning PDG meaning PDHG meaning PDM meaning PDNP (reserves) meaning PDP meaning PD (reserves) meaning Peat meaning PEEK meaning PEI meaning PE meaning Penetration Rate (drilling or well cleanout) meaning Pennsylvanian meaning Penny Frac meaning Pentane meaning PE (plastic) meaning Peptize meaning Perched Water Table meaning Percussion Hammer (drilling) meaning PERF meaning Perforated Completion meaning Perforated Liner meaning Perforating Charge meaning Perforating Debris meaning Perforating Density meaning Perforating Depth Control meaning Perforating Gun meaning Perforation Breakdown meaning Perforation Carrot meaning Perforation Crush Zone meaning Perforation Density meaning Perforation Entry Hole meaning Perforation meaning Perforation Penetration meaning Perforation Phasing meaning Perforation Prepacking meaning Perforation Shot Density meaning PerformTM meaning Period meaning Permafrost meaning Permanent Packer meaning Permeability Barrier meaning Permeability Contrast meaning Permeability Correlation meaning Permeability or k meaning Permeation meaning Permian meaning PES meaning Petal Basket (cementing) meaning Petal Basket Flowmeter (logging) meaning PETN meaning Petrochemicals meaning Petroleum meaning Petrophysics meaning Pf meaning PFO meaning Phase meaning Phi meaning Ph meaning Phosphate Esters meaning Phosphonates meaning PHPA meaning Pickett Plot meaning Pickle meaning Pick (seismic) meaning Pick Up Weight meaning PID meaning PIE (BP) meaning Pig meaning Pill meaning Pilot Hole meaning Pilot meaning Pilot Mill meaning PI meaning PINC (DOI) meaning Pinch Out meaning Pin (in pipe) meaning Pin (in wireline tools) meaning Pinj meaning Pinnacle Reef meaning Pipe Dope meaning Pipe Heavy meaning Pipe Lay Down meaning Pipe Light meaning Pipeline gas meaning Pipeline meaning Pipeline Quality Oil meaning Pipe Rack meaning Pipe Ramp meaning Pipe Rams meaning Pipe Tongs meaning Pipe Upset meaning Pipe Upset meaning PIP meaning Pip Tag meaning PISS meaning PISTL meaning PITA meaning Pitch (drilling) meaning Pit (drilling) meaning Pit Level meaning Pitman meaning PIT meaning PIT meaning Pitot tube meaning PITS meaning Pitting meaning Pitting Resistance Equivalent Number meaning PJ meaning PJTHA meaning Pkr meaning Placer Deposit meaning Planktonic meaning Plastic Deformation meaning Plastic Fluid meaning Plastic Viscosity meaning Plateau meaning Platform meaning Playa meaning Play meaning PLC meaning PLET (subsea) meaning PL meaning PLT meaning Plug and Abandon meaning Plug and Cage meaning Plug and Seat Choke meaning Plug Back Depth meaning Plug Back meaning Plug Container or Dropper (cementing) meaning Plug Flow meaning Plug meaning Plug Valve meaning Plunger (beam lift) meaning Plunger (gas wells) meaning Plutonic igneous (rock) meaning PM10 meaning PM2.5 meaning PMACS meaning PML (perforating) meaning PM meaning PNC meaning PNG meaning PNID meaning PNL meaning Pocket (drilling) meaning Pocket (gas lift) meaning Pod Mixer meaning POE meaning POH meaning Poiseuille’s Law (flow) meaning Poisson’s Ratio meaning Polished Bore meaning Polished Bore Receptacle meaning Polished Nipple meaning Polished Rod Clamp (beam lift) meaning Polished Rod meaning Polyacrylamide meaning Polyester meaning Polymer meaning Polymorph meaning Pony Rod meaning POOH meaning Pooled Unit meaning Pool meaning Poorly Sorted meaning POP (downhole) meaning POP meaning Poppet Valve meaning POP (plug) meaning POP (production) meaning Pore meaning Pore pressure gradient meaning Pore Size Distribution meaning Pore Throat meaning Porosity Cutoff meaning Porosity Exponent meaning Porosity meaning Ported Nipple meaning Portland Cement Clinker meaning Portland Cement meaning Port Plug meaning Positive Choke meaning Possible Reserves meaning Possum Belly meaning Potable Water meaning Potassium Chloride meaning Potassium Chloride Substitute meaning Potassium K40 meaning Potential (electrical) meaning Potential (risk analysis) meaning Pottable water meaning Pour Point meaning Power Fluid meaning Power Law Fluid meaning Power Swivel (drilling and workovers) meaning Power Tongs meaning Pozzlin meaning PPB meaning PPE meaning PP (formation) meaning PPGA meaning PPG meaning PP meaning PPM meaning PPPOT-T meaning PPS meaning PPTB meaning Precambrian meaning Precipitated meaning Precipitation Hardening meaning Precipitation Point meaning Precision meaning Prehydrated (clay or polymer) meaning PRE meaning Prepacked Screen meaning Prepacking (perfs) meaning Prescient (Risk) meaning Present Net Value meaning Preserved Core meaning Pressure Bomb meaning Pressure Buildup meaning Pressure Dependent Permeability meaning Pressure Dependent Permeability meaning Pressure Depletion meaning Pressure Falloff meaning Pressure Gradient meaning Pressure Integrity Test meaning Pressure meaning Pressure Relief Valve meaning Pressure Transient Test meaning Pressure Traverse meaning Pressurized Mud Balance (fluid density) meaning PrimacordTM meaning Primacy meaning Primary Cementing meaning Primary Completion meaning Primary Natural Fractures meaning Primary Production meaning Primary Recovery meaning Primary Term meaning Prime Mover meaning Primer Cord meaning PR meaning Probabilistic Estimate (Risk) meaning Probability Distribution (Risk) meaning Probability meaning Probable Reserves meaning Produced Gas-Oil-Ratio meaning Produced Water meaning Producing Horizon meaning Producing meaning Producing Well meaning Production Casing meaning Production Chemist meaning Production Index meaning Production Index (Shale) meaning Production Log meaning Production Maintenance meaning Production Packer meaning Production Pressure Operated Valve (gas lift) meaning Production Rig meaning Production Separator meaning Production Technical Limits meaning Production Test meaning Production Tree meaning Production Tubing String meaning Production Wing Valve meaning Productivity Index meaning Productivity Optimization meaning Profile meaning Propane meaning Propellant meaning Proppants meaning Prorationing meaning Prospect meaning ProsperTM meaning Protection String meaning Proved Developed Reserves meaning Proved Reserves meaning Proved Undeveloped Reserves meaning PRP meaning Pr (reservoir) meaning PRV meaning PSA meaning PSASV meaning PSC (contract) meaning PSC (gas lift) meaning PSD meaning Pseudogravity (seismic) meaning Pseudoplastic fluid meaning PSIA meaning PSIG meaning PSI meaning PSL meaning Ps meaning PSO (gas lift) meaning PSP meaning PSV meaning PSV meaning PS Wave (seismic) meaning PTFE meaning PT (gas lift) meaning PTL meaning PTRO (gas lift) meaning PT (skills) meaning PTS meaning PT (subsea) meaning PT (well test) meaning Public Lands meaning Puddle Job meaning PUD (reserves) meaning Pulling Unit (rig) meaning Pulsed Neutron Log meaning Pulse Echo Tool meaning PU meaning Pumpability meaning Pump Barrel (beam lift) meaning Pump Down Tool meaning Pump Efficiency meaning Pumping Tee meaning Pump Jack meaning Pump Off meaning Pump-Open Plug meaning Pump Out Plug meaning Pump Through Plug meaning Pump Trucks meaning Puncher Charge meaning Pup Joint meaning Purple K meaning Push Pill meaning PVC (gas lift) meaning PVC (plastic) meaning PVDF meaning PV (drilling fluids) meaning PV (PVT analysis) meaning PV (rock) meaning PVT meaning P Wave meaning PWI meaning PW meaning PWRI meaning PWT meaning Pyrobitumen meaning Pyroclastics meaning Pyrolysis meaning PYX meaning P/Z Plot meaning QA/QC meaning q meaning QN Nipple meaning qo meaning QRA meaning Quality (foam stimulation fluid) meaning Quality (product) meaning Quartz meaning Quaternary meaning Quench Crack meaning Quench Hardening meaning Rabbit meaning Racking Back Pipe meaning Rack meaning Radial Darcy Law meaning Radial Stress (tubular) meaning Radiant Heat Transfer meaning Radioactive Log meaning Radioactive Tagging meaning Radioactive Tracer Log meaning Radioactive Tracer meaning Radiographic Inspection (pipe inspection) meaning Radioisotope meaning Radiolarian meaning Radionuclide meaning Radium meaning Radius of Curvature meaning Radius of Investigation meaning RAD meaning Rag Pump meaning RA (logging) meaning Ram meaning R&R meaning R&W meaning Range 1 Tubular meaning Range 2 Tubular meaning Range 3 Tubular meaning Range of Load (beam lift) meaning Rank Wildcat meaning RAPPS (policies) meaning RAPPS (subsea) meaning Rasp meaning Rate Dependent Skin meaning Rate of Penetration meaning Rate Sensitive (damage) meaning Rat Hole (drilling rig) meaning Rat Hole (well) meaning Ratio of Specific Heats meaning Raw Natural Gas meaning RB meaning R-BOP meaning RBP meaning RCA meaning RCFA meaning RCM meaning RCP meaning RCRA meaning RCS meaning RCSSP meaning RCT meaning RDDK (valve) meaning RDFN meaning RD meaning RDMO meaning RDT meaning RDX meaning Real Time Gauge meaning Reamer meaning Reave meaning RECIP meaning Reciprocate meaning Reciprocating Pump meaning Recirculating Mixer meaning Reclamation meaning Recomplete meaning Recompletion meaning Recoverable Gas Lift Gas meaning Recoverable Oil meaning Recoverable Reserves meaning Recovery Efficiency meaning Recovery Factor meaning Recrystallization meaning RED meaning Re-Dress meaning Reduction (chemical) meaning Reduction-To-Equator (seismic) meaning Reduction-To-Pole (seismic) meaning Reef meaning Reel meaning Re-Entry meaning Re-entry Spool meaning Reeve (rigging) meaning Reference Point meaning Refiner meaning ReFrac Efficiency meaning Refracture meaning Regional Gravity Field (seismic) meaning Relative Permeability meaning Relative Permeability Modifiers meaning Release Sub meaning Reliability meaning Relief Valve meaning Relief Well meaning re meaning Remedial Cementing meaning Remotely Operated Vehicle meaning Repeater meaning Repeat Formation Tester meaning Repeat Section meaning Reporting Limit meaning Reserve Extension meaning Reserve Pit meaning Reserves, 1P meaning Reserves, 2P meaning Reserves, 3P meaning Reserves, Behind Pipe meaning Reserves, Developed meaning Reserves, Entitlement meaning Reserves, Extension meaning Reserves meaning Reserves, Non Producing meaning Reserves, Possible meaning Reserves, Probable meaning Reserves, Producing meaning Reserves, Proved Developed meaning Reserves, Proved meaning Reserves, Proved Undeveloped meaning Reserves, Recoverable meaning Reserves to Production Ratio meaning Reserves, Undeveloped meaning Reserves, Unproved meaning Reservoir Drive Method meaning Reservoir Energy meaning Reservoir meaning Reservoir Pressure meaning Reservoir Rock meaning Residence Time meaning Residual Bend meaning Residual Gravity Field (seismic) meaning Residual Water meaning Resieved Sand meaning Resin (asphaltene micelle) meaning Resin Coated Sand meaning Resin Consolidation meaning Resin (sand control) meaning Resistivity Log meaning Resistivity meaning Restoring Force meaning Retained Interest meaning Retarder meaning Retention Time meaning Retrievable Bridge Plug meaning Retrievable Packer meaning Retrieving Tool meaning Retrograde Condensate meaning Return Permeability meaning Returns meaning Rev DustTM meaning Reverse Circulate meaning Reverse Osmosis meaning Reverse Out meaning REV meaning Revs (engine) meaning Reynolds Number meaning RFI meaning RF meaning RFP meaning RFQ meaning RFT meaning RFV meaning Rheology meaning RH (pipe) meaning Rich Gas meaning Rig Down meaning Right Angle Set meaning Rigid Centralizer meaning Rigless meaning Rig meaning Rig Up meaning RIH meaning Ring Gaskets meaning Riprap meaning Riser meaning Risk Analysis meaning Risk Assessment meaning Risk meaning Risk Premium meaning Risk Weighted meaning River Frac meaning RKB meaning Rmf (logging) meaning ROCE meaning Rock Density meaning Rock Mechanics meaning Rock Properties meaning Rock Salt meaning Rock Shear Strength meaning Rockwell Hardness meaning Rod Box meaning Rod Pound meaning Rod Pump meaning Rod String meaning Rod Wiper meaning ROI meaning Roller Cone Bit meaning Roller Stem meaning Rolling the Tanks meaning Roll-On Connector (coiled tubing) meaning Roof Rock meaning Root Cause (in failures) meaning ROPE meaning Rope Socket meaning Roping meaning ROP meaning Rotary Bushing meaning Rotary Drilling meaning Rotary Hose meaning Rotary Speed meaning Rotary Steerable meaning Rotary Table meaning Rotating Head meaning Rotating ROP meaning Rotor (PDM motor) meaning Roughneck meaning Roughness meaning Round Trip meaning Roustabout meaning ROV meaning Royalty meaning Royalty Oil meaning R/P meaning RPM meaning RPM (string rotation) meaning RP (policy) meaning RQ meaning RSMD meaning RSS (drilling) meaning RTD meaning RTE (seismic) meaning RTG (perforating) meaning RTJ meaning Rt (logging) meaning RTNS meaning RTP (seismic) meaning RTS meaning RTTGP meaning RTTS meaning RTU meaning Rubblize meaning Rugose meaning Rugosity meaning RU meaning Runaway (coiled tubing) meaning Run In meaning Running Squeeze meaning Running Tool meaning Run Ticket meaning Rupture Disk meaning Rw (logging) meaning RWO meaning Rxo (logging) meaning S1, S2, S3 meaning Sack (cement) meaning Sacrificial Anode meaning Saddle Bearing meaning Saddle meaning Safeing Out meaning Safety Clamp meaning Safety Factor meaning Safety Head meaning Safety Joint meaning Safety Release meaning Safety Slide meaning Safety Valve meaning SAGD meaning Sag meaning Sail Angle meaning Salamander meaning Sales Gas meaning Saline water meaning Salinity Gradient meaning Salinity Log meaning Salinity meaning Saltation meaning Salt Bed Storage meaning Salt Bridging Material meaning Salt (brine) meaning Salt Cavern meaning Salt Dome meaning Salt Water (production) meaning Sample Log meaning Sample Rate meaning Sampson Post meaning SAMTM meaning Sand Bailer meaning Sand Consolidation meaning Sand Control meaning Sand Control Screen meaning Sandface meaning Sand (formation) meaning Sand Frac meaning Sand Free Rate (production) meaning Sanding Back meaning Sand Line Drill meaning Sand Line meaning Sand Production meaning Sand Screen meaning Sand/Shale Ratio Map meaning Sandstone meaning Sand Trap meaning Sandy Service meaning SARA meaning SAS meaning Satellite Field meaning Satellite Well meaning Saturated Solution meaning Saturation Exponent meaning Saturation Pressure meaning Saturation (reservoir) meaning Saucier Criteria meaning Saver Sub (drill string) meaning SBHP meaning SBHT meaning SBM meaning SBR (elastomer) meaning Scab Liner meaning SCADA System meaning Scale Converter meaning Scale Dissolver meaning Scaled Off meaning Scale Inhibition Squeeze meaning Scale Inhibitor meaning Scale meaning Scale Prediction meaning Scallop Gun meaning Scavenger meaning SCBA meaning SCC (corrosion) meaning SCC (sand control) meaning scf meaning Scfm meaning Schist meaning Scintillation Detector meaning SCL meaning SCM (subsea) meaning Scorpion Plot meaning Scour meaning Scout meaning Scout Ticket meaning SCP meaning SCR (alternate) meaning SCRAMSTM meaning Scraper meaning Scraper meaning Scratcher meaning Scratchers (cementing) meaning SCR (completions) meaning Screen Analysis meaning Screen Centralizer meaning Screening Effect meaning Screenless Frac meaning Screen meaning Screen Only Completion meaning Screen Out meaning Screen Table meaning Screw Port Gun (perforating) meaning Scrubber meaning Scrub meaning SCSFS meaning ScSSV Leak Rate (acceptable to pass) meaning ScSSV meaning SCVF meaning SDFN meaning SD meaning SDR (downhole gauge) meaning SDR meaning SDV meaning SDWA meaning Seal Assembly meaning Seal Bore Extension meaning Seal Bore Packer meaning Seal (geologic) meaning Sealing Fault meaning Seal (mechanical) meaning Seal Ram meaning Seal Swelling meaning Seal-Tite meaning Seating Nipple meaning Sea Water Composition (ASTM.D1141) meaning Sea Water Composition (typical) meaning Sea Water Density meaning Secondary Cementing meaning Secondary Fractures meaning Secondary Porosity meaning Secondary Recovery meaning Section (US land) meaning Sedimentary Basin meaning Sedimentary meaning Seeding meaning Seep (natural flow) meaning Seismic Lines meaning Seismic meaning Seismograph meaning Selective Firing meaning Selective Profile meaning Self Potential Log meaning Semi-Submersible meaning SEM meaning Separation (fluid treating) meaning Separator meaning Separator Pressure meaning Sepiolite meaning Sequestration meaning Service Well meaning Sessile meaning Set Back meaning Set Casing meaning Set Pipe meaning Set-Through Completion meaning Set Time meaning Settling Tank meaning Set Up meaning SFLU (logging) meaning Sg meaning SGR meaning Shake-Out Tests meaning Shaker meaning Shale Control Inhibitor meaning Shale Gas meaning Shale meaning Shale Oil meaning Shale Shaker meaning Shaped Charge meaning Shear Dilation meaning Shearing The Pin meaning Shear Joint meaning Shear Load meaning Shear Modulus (G) meaning Shear Pin meaning Shear Ram meaning Shear Rate meaning Shear Strength meaning Shear Stress (viscosity) meaning Shear Thinning meaning Shear Wave meaning Sheath meaning Sheave meaning Sheen meaning Sheet Sand meaning Shielded meaning Shifting A Sleeve meaning Shmax meaning Shmin meaning Shock Absorber meaning Shoe (casing) meaning Shoe Joint meaning Shoestring Sands meaning Shoe Test meaning Shoe Track meaning Shoot Fluid Level meaning Shooting Nipple meaning Shooting the Well meaning Shootoff (perforating) meaning Shootoff (pipe recovery) meaning Shore Hardness (plastics) meaning Shore’s Hardness meaning Short Radius meaning Short String (dual completion) meaning Short Trip meaning Shot Density meaning Shot Hole (completions) meaning Shot Hole (seismic) meaning Shot Point meaning Shoulder meaning Shoulder Off meaning Show meaning Shrimp (testing) meaning Shrinkage Factor meaning Shroud meaning SHR (subsea) meaning Shunt Tube meaning Shut-in Casing Pressure meaning Shut-in meaning Shut-in Pressure meaning Shut-in Tubing pressure meaning SIBHP meaning SICP meaning Side-By-Side Completion meaning Side Pocket Mandrel meaning Siderite meaning Sidetrack meaning Sidewall Core meaning SIDPP meaning Sieve Distribution meaning Significant Wave Height meaning Silica Flour meaning Silica Gel (drier) meaning Silica Sand (cementing) meaning Sill (rock) meaning Silt meaning Silt Stabilized Emulsion meaning Silurian meaning SI meaning SIMOPs meaning Simulfrac meaning Single Pole Unit or Rig meaning Sinker Bar meaning Sink Hole meaning Sinusoidal meaning Siphon String meaning SIP meaning SITHP meaning SITP meaning SIWHP meaning Sized Salt meaning Skid meaning Skin Damage meaning Skin Frac meaning Skin meaning Slack-Off Weight meaning Slate meaning SLB meaning SLD (wireline) meaning Slick Joint meaning Slick Line meaning Slick Water meaning Sliding ROP meaning Sliding Sleeve meaning Sliding Time meaning Slime Former meaning Slim Hole meaning S-Line meaning Slip and Cut meaning Slip Joint meaning Slippage meaning Slip Ram meaning Slips meaning Slip Stop (wireline) meaning SL meaning SLM meaning Slotted Liner meaning Sloughing (shale) meaning Slow Taper meaning Sludge meaning Sluff meaning Slug (Drilling) meaning Slug Flow meaning Slug meaning Slurry meaning Slurry Packing meaning Sm3 meaning Smart Pig meaning Smectite meaning SNAPTM meaning Snell’s Law (seismic) meaning Snubbing Basket meaning Snubbing Job meaning Snubbing (pipe running) meaning Snubbing Stack meaning SO2 meaning Soak meaning Soap Stick meaning SOC meaning Soda Ash meaning Sodium Bicarbonate meaning Sodium Silicate meaning Soft Water meaning Soil Mechanics meaning Solid Body Centralizer meaning Solid Waste meaning Solution Gas Drive meaning Solution Gas meaning Solution GOR meaning Solvent meaning So meaning Sonalog meaning Sonde meaning Sonic Amplitude Log meaning Sonic Caliper meaning Sonic Log meaning SOP meaning SOR meaning Sorption meaning Sorting meaning SOS meaning Source Potential meaning Source Rock meaning Source Rocks meaning Sour Crude meaning Sour Gas meaning Sour meaning Sour Service meaning Sour Service Rating meaning SOV meaning SOx meaning SPA (BP) meaning Space Domain (seismic) meaning Space Out Joint (drilling) meaning Space Out meaning Spacer (pumping) meaning Spacing meaning Spaghetti String meaning Spalling meaning Spang Jar meaning Sparge meaning SPCC meaning Spear meaning Specific Gravity meaning Specific Heat meaning Specific Weight meaning Spectral Gamma Ray Image meaning Spectral Gamma Ray meaning SPE meaning Spf (perforating) meaning Spider meaning Spill Point (reservoir) meaning Spinner Log meaning Spinning Chain meaning Spiral-Grooved Drill Collar meaning SpiralizerTM meaning Split Estate meaning Split ShotTM meaning Split Skirt (milling tool) meaning SPM (drilling) meaning SP meaning Spm (perforating) meaning SPOC meaning Spontaneous Potential Log or SP meaning Spot Market meaning Spotting Fluid meaning Spread Cost meaning S Profile meaning Spud Date meaning Spud meaning Spud Mud meaning Spurt Loss meaning SPWLA meaning Squeeze Cementing meaning Squeeze Packer meaning Squeeze Treating or Job meaning SRBC meaning SRB meaning SRD meaning S-Riser meaning SrSO4 meaning SRT meaning SSC meaning SSD meaning S-Shaped Well meaning SSIV meaning SS meaning SS meaning SSP meaning SSSV meaning SSTT meaning SSV meaning Stabilizers (drilling) meaning Stab meaning Stack (seismic) meaning Staged Cementing meaning Stage Tool (cementing) meaning Stall (fluid powered motors) meaning Standard Blue Barrel meaning Stand-by-Time meaning ST&C meaning Standing Valve meaning Stand meaning Standoff meaning Stand Off meaning Stand of Pipe meaning Standpipe meaning Stand Pipe meaning Static Bottom Hole Pressure meaning Static Fluid Level meaning Static Pressure meaning Static Seal meaning Stationary Block (drilling) meaning Stationary slips meaning Stator (PDM motor) meaning STB meaning Steam Flood meaning Steerable Motor (drilling) meaning Stem (wireline) meaning Step Out Well meaning Step Rate Breakdown Test meaning STG (subsea) meaning Stick Plot meaning StimplanTM meaning Stimulation meaning Stinger (well control) meaning Stinger (well tubular) meaning StM3 meaning ST meaning Stock Tank Barrel meaning Stock Tank Conditions meaning STO meaning STOOIP meaning Stop-cocking meaning Storm Choke meaning STP meaning Straddle meaning Straddle Packer meaning Straight Hole meaning Strain Gauge meaning Strain meaning Strap meaning Stratification (logging) meaning Stratified Flow meaning Stratigraphic Trap meaning Stratigraphy meaning Stray Current Corrosion meaning Stray Current meaning Stream Bed meaning Stress Cage meaning Stress Chloride Cracking meaning Stress Corrosion Cracking / Stress Corrosion meaning Stress Crack meaning Stress meaning Stress Relief meaning Stress Riser meaning Stretch Target (Risk) meaning Striation meaning Strike meaning Strike-Slip Fault meaning Stringing Up meaning String Mill meaning String Shot meaning Strip Gun meaning Strip Over meaning Stripper meaning Stripper Rubber meaning Stripper Well meaning Stripping (pipe running) meaning Strip (processing) meaning Strokes Per Minute (Beam Lift) meaning Strokes Per Minute (Drilling) meaning STRONGER meaning Structural Casing meaning Structural Geology meaning Structural Map meaning Structural Model (seismic) meaning Structural Trap meaning Stuck Pipe (drilling) meaning Stuffing Box meaning STV (subsea) meaning Styolite meaning Sub Critical (flow) meaning Subduction meaning Sublimation meaning Sub meaning Submersible Electrical Pump meaning Submersible Rig meaning Subsalt meaning Subsea Completion meaning Subsea Well meaning Subsidence meaning Subsurface Controlled Subsurface Safety Valve meaning Subsurface Safety Valve or SSSV meaning Sucker Rod meaning Suction Pit meaning Sugar Water (cementing) meaning Suicide Squeeze meaning Sulfamic Acid meaning Sulfate meaning Sulfate Resistance (cement) meaning Sulfide meaning Sulfide Stress Cracking meaning Sump meaning Sump Packer meaning Supercharging meaning Super Saturated meaning Surface Active Agents meaning Surface Casing meaning Surface Controlled Subsurface Safety Valve or ScSSV meaning Surface Roughness meaning Surface Tension meaning Surfactant meaning SURF meaning Surge Tool meaning Surging (flow) meaning Surging (pipe movement) meaning Susceptibility (seismic) meaning Suspend meaning Swab meaning Swab Valve meaning Swage meaning Swa (logging) meaning Swarf meaning S Wave meaning SWC (corrosion) meaning SWC meaning Swcor (logging) meaning SWDA meaning SWD meaning SWD meaning Sweep Efficiency meaning Sweep meaning Sweep Pill meaning Sweep Spot meaning Sweetening meaning Sweet meaning Swell Packer meaning Swept Volume (circulating) meaning SWI (logging) meaning Swirr meaning Swivel (drilling) meaning SW meaning SWOP meaning Swr (logging) meaning SWR (subsea) meaning Sw/So (logging) meaning SX meaning Sxo (logging) meaning Syncline meaning Syncline meaning Syncrude meaning Syneresis meaning Syngas meaning Synthetic Crude meaning Synthetic Oil Based Mud meaning Tachehydrite meaning Tadpole Plot meaning Tag Line meaning Tag meaning TAG (perforating gun) meaning Tail Cement meaning Tail Gas meaning Tailing Rods meaning Tail Pipe meaning TAI (shale) meaning Tall Oil meaning Tally meaning Talus meaning TAML meaning Tamp meaning T&C meaning T&D (drilling) meaning Tangential Stress (tubing) meaning Tangential Wave meaning Tangible Costs (Drilling) meaning Tank Battery meaning Tank Bottoms meaning Tank Farm meaning TAN meaning TA or T/A meaning Tapered Bowl meaning Tapered Mill meaning Tapered String meaning Taper Tap meaning TAP meaning TAPS meaning Target (Risk) meaning Tar meaning Tar Sands meaning TBN meaning TCF (gas lift) meaning tcf (reserves) meaning TC meaning TCP (chemical additive) meaning TCP meaning TCT meaning TDH meaning TD meaning TDRM meaning TDS meaning TDT meaning Technical Limit meaning Technically Recoverable Resources meaning Tectonic Force meaning Tectonic Map meaning TEG meaning Telemetry meaning Telescoping Mast meaning Televiewer meaning Tell Tale (gravel packing) meaning Tell Tale Screen meaning Telluric Currents meaning TEL meaning Temperature Gradient meaning Temperature Log meaning Temperature Stability Agents meaning Temperature Survey meaning Temporarily abandoned meaning Tender (ship) meaning Ten Round meaning Tensile Extension meaning Tensile Strength meaning Tension Set Packer meaning TEOR meaning Tertiary meaning Tertiary Recovery meaning Test Pill meaning Test Separator meaning Tettle Tail meaning TFE (elastomer) meaning TFE meaning TFL meaning TGLR meaning TG meaning TGS meaning THAI meaning THD (subsea) meaning Thermal Decay Log meaning Thermal Decomposition meaning Thermal Expansion meaning Thermal Maturity meaning Thermal Recovery meaning Therm meaning Thermogenic gas meaning Thermos Flask meaning Thickening Time meaning Thief meaning Thief Zone meaning THI meaning Thinners meaning Thin Section meaning Thixotropic meaning Thorium meaning THP meaning Thread Gauge or Thread Form meaning Thread Protector meaning Three-D or 3-D seismic meaning Threshold Velocity meaning Thribble (old drilling term) meaning Throttling meaning Throughput meaning Through the Flow Line meaning Through Tubing Gun meaning Through Tubing meaning Throw meaning Throw the chain meaning Thrust Fault meaning THS meaning THT meaning Tie-Back meaning Tie meaning TIFL meaning Tiger Tank meaning Tight Formation meaning Tight Gas meaning Tight Hole meaning Tight Sand meaning Tight Spot meaning TIH meaning Tip Screen Out meaning TIV meaning TIWTM meaning TJ meaning TKV meaning TLP meaning TLV meaning Tmax (shale) meaning TMD meaning t meaning TNL meaning TN meaning TOC meaning TOC (shale) meaning Toe meaning TOH meaning TOL (casing string) meaning Toluene meaning Tomography meaning Tongs meaning TOOH meaning Tool Joint meaning Tool Pusher meaning Top Drive meaning Top Job meaning Top Kill meaning Top Lease meaning Topographic Map meaning Top Plug meaning Top-Set Completion meaning Topsides meaning Tornado Chart meaning Torpedo meaning Torque meaning Torsion tester meaning Tortuosity meaning Total Depth meaning Total Dissolved Solids meaning Total GOR meaning TOTP meaning Tour meaning Township meaning Toxicity meaning TPC (lift) meaning TPC (production) meaning TPH meaning t (pipe) meaning TPI (pipe and connection) meaning TP meaning TP meaning TPSV meaning tpy meaning Traceability meaning Trace Element (analysis) meaning Tracer (injector) meaning Tracer Log (fluid movement) meaning Tracer Log (fracturing) meaning Track meaning Tractor meaning Transient meaning Transitional Spacer meaning Transition Zone (flow) meaning Transmissibility meaning Traveling Block meaning Traveling Valve meaning Treater meaning Treating Fluid meaning Treating Iron meaning Tree Cap meaning Tree Saver meaning Trench Magnet meaning Trend meaning Triassic meaning Triaxial meaning TRI meaning Trip Gas meaning Trip In meaning Triple meaning Triplex Pump meaning Trip Margin meaning Trip meaning Trip Out meaning Tripping In meaning Tripping Out meaning Trip Tank meaning TRSCSSSV meaning TRSSSV meaning True Vertical Depth or TVD meaning T-Seal meaning TSO meaning TSR Tubing Seal Bore Receptacle meaning TSS meaning TST (geologic) meaning TSTM (flow measurement) meaning TTD meaning TTFWO meaning TTGP meaning TT meaning TTP (perforating) meaning TTP (tubular) meaning TTRD meaning TTR meaning Tubing Anchor meaning Tubing Bonnet (wellhead) meaning Tubing Bowl meaning Tubing Conveyed meaning Tubing End Locator meaning Tubing Hanger meaning Tubing Head meaning Tubingless Completion meaning Tubing meaning Tubing Pressure meaning Tubing Pump meaning Tubing Retrievable meaning Tubing Spider meaning Tubing Tail meaning Tubing Valve meaning Tugger meaning Tungsten Carbide meaning Turbidity meaning Turbine Motor meaning Turbo Drill meaning Turbulent Flow meaning Turner Equation meaning Turner Equations meaning Turnkey (drilling) meaning Turntable meaning TVD meaning TVDTR meaning TWC (core) meaning TWC (flow path) meaning TWC (pipe) meaning Twinning (flow lines) meaning Twinning (wellbore) meaning Twist-Off meaning Two Barrier meaning TxIA meaning Type Curve meaning UBD meaning UBI meaning UB meaning UBO meaning UCS meaning UIC meaning ULCC ultra-large crude carrier meaning Ultimate Strength meaning Ultrahigh-Pressure Water Jetting meaning Ultrasonic meaning Ultraviolet Disinfectation meaning Umbilical meaning UMV meaning Unassociated gas meaning Uncertainty Assessment (Risk) meaning Uncertainty meaning Uncertainty (Risk) meaning Unconformity meaning Unconsolidated formation meaning Unconventional Resources meaning Underbalanced Perforating meaning Underbalance Drilling Level 0 meaning Underbalance Drilling Level 1 meaning Underbalance Drilling Level 2 meaning Underbalance Drilling Level 3 meaning Underbalance Drilling Level 4 meaning Underbalance Drilling Level 5 meaning Underbalance Drilling meaning Underbalance meaning Under-deposit Corrosion meaning Undergauge hole meaning Underground Blowout meaning Underlift meaning Under Reamer meaning Under-Ream meaning Undersaturated Oil meaning Under Travel meaning Undeveloped Acreage meaning Undeveloped Reserves meaning Undiscovered Petroleum Initially in Place meaning Undisturbed Zone meaning Undulating meaning Unitize meaning Unit Operator meaning Unloading meaning Unloading Valve meaning Unproved Reserves meaning Unsteady State meaning Unweighted Fluid meaning uo meaning Up Dip meaning Updip Well meaning Uplift meaning Upper Completion meaning Upper Crown Plug (subsea) meaning Upper Kelly Cock meaning Upset (chemical) meaning Upset Connection meaning Upset (mechanical) meaning Up Steam meaning Upstream meaning Uranium meaning UR meaning USDW meaning USGS meaning USIT meaning USITM meaning UTM meaning U-Tube meaning UV meaning Valve any of several valves meaning Van der Waals Force meaning VAPEX meaning Vapor Pressure meaning Vapor Recovery Unit meaning Variable Bore Rams meaning Variable Speed Drive meaning VASPS (subsea) meaning V-Belt meaning V-Door (Vee Door) meaning Vee-Door meaning Velocity Gradient (seismic) meaning Velocity Safety Valve meaning Velocity Stack meaning Velocity String meaning Vent meaning Vent Screen meaning Venturi meaning Verification meaning Vertical Depth meaning Vertical Tree (subsea) meaning V-G Meter meaning Vibroseis meaning VIPTM meaning Virgin Pressure meaning Viscosifiers meaning Viscosity meaning VIS or VISC meaning VIT meaning VitonTM meaning Vitrinite Reflectance meaning VIV (riser) meaning VLCC very large crude carrier meaning VLV meaning VME meaning VME meaning VOC meaning Voids meaning Volatile oil meaning Volumetric Drive meaning Vortex Shedding (marine) meaning Vreeland Effect meaning VRU meaning VSD meaning VSP meaning V-Stack meaning Vug meaning VXT (subsea) meaning WAG meaning Wait and Weigh Method meaning Waiting on Cement or WOC meaning Walking Beam (beam lift) meaning Walking Squeeze meaning Walking Wash meaning Wall Cake meaning Wall Hook meaning Wall Stuck meaning WARI meaning Washing meaning Washout (drilling) meaning Washout (formation) meaning Wash Over meaning Washover Operation meaning Washover Pipe meaning Wash Pipe meaning Waste Water meaning Wasting Assets meaning Water Base Emulsion or Mud meaning Water Block meaning Water Coning meaning Water Cushion meaning Water Cut meaning Water Disposal Well meaning Water Drive meaning Water Flood meaning Water Frac meaning Water Hammer meaning Water Injector Well meaning Water-in-Oil Emulsion meaning Water Mellon Mill meaning Water of Condensation meaning Water Pack meaning Watershed meaning Water Table (drilling) meaning Water Table (water supply) meaning Water Wet meaning Wave Train meaning Wax Beads meaning Wax meaning WBM meaning WBS (rock strength) meaning WBS (seismic) meaning WCL (SSSV) meaning WC meaning W/C meaning Weak Link (coiled tubing) meaning Weak Point (wireline or CT) meaning Wear Bushing meaning Weathered (mineral) meaning Weather Window meaning Weave Screens (sand control) meaning Weevil meaning WEG meaning Weight Bar meaning Weight Indicator meaning Weighting Materials meaning Weight Stem meaning Weight (tubing) meaning Weight Up meaning Wellbore Cleanout meaning Wellbore Diagram meaning Wellbore meaning Wellbore Screenout meaning Wellbore Storage Effect meaning Wellbore Wash (chemical treating) meaning Well Cleanup meaning Well Completion meaning Well Construction meaning Well Control meaning Wellhead meaning Well Interference meaning Well Operation meaning Well PatrollerTM meaning Well Productivity meaning Well Program meaning Well Pulling Hoist meaning Well Sorted meaning Wet Combustion meaning Wet Gas meaning Wet Gloss Heating Value (reactions) meaning Wet meaning Wet Oil meaning Wet Shoe meaning WETSTM meaning Wettability meaning Wetted Surface meaning Wetting Fluid meaning WF meaning WF meaning WFRV meaning WFT meaning WG meaning WHE (wells) meaning WHFP meaning Whipstock meaning Whirl (drilling) meaning White Oil meaning Whole Core meaning WHP meaning WHT meaning Wickers meaning Wildcat meaning WIMS meaning Window (casing) meaning Window (hydraulic) meaning Wing Valve meaning WIO meaning WIOP meaning Wiper Plug meaning Wireline Entry Guide meaning Wireline Feeler meaning Wireline Formation Tester meaning Wireline meaning Wireline Preventor meaning Wireline Retrievable meaning Wireline Tools meaning Wire Wrapped Screen meaning WIT meaning WLMD meaning WLM meaning WML (perforating) meaning Wobble Ring (gas lift) meaning WOB meaning WOC meaning WOE meaning WO meaning WOO meaning Work Basket meaning Work Hardening meaning Working Interest meaning Working Pressure meaning Working Window meaning Workover meaning Workover Rig meaning Work String meaning WOR meaning Wormhole meaning Worm meaning WOS meaning WOW meaning WPC meaning WPH meaning WQC meaning WRIV meaning Wrought Iron meaning Wrought meaning WROV meaning WRSSV meaning WSO meaning WTI meaning WTR meaning WTS meaning W/V meaning WWS meaning XanthanTM meaning XanvisTM meaning xHPHT meaning X-Link meaning Xmas Tree meaning XNL meaning XN Profile meaning XO meaning XOM meaning X-Over meaning X Profile meaning XRD meaning XT meaning YE meaning Yield (drilling fluid) meaning Yield Point (drilling point) meaning Yield Point (metal) meaning Yield Strength (metal) meaning Yield Value (fluids) meaning Young’s Modulus (E) meaning YP meaning Zeolites meaning Zeta HammerTM meaning Z-factor meaning Zinc Brine meaning Zinc Sulfide/Sulfate meaning ZnCl2 meaning Zone meaning Z (production logging) meaning Zwitterionics meaning

 

Glossary of petroleum engineering terms meanings

 

Glossary of petroleum engineering terms meanings

 

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Glossary of petroleum engineering terms meanings

 

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Glossary of petroleum engineering terms meanings