Schlumberger Oilfield Glossary Search Results

Numbers
1-D seismic data 1D seismic data 2-way traveltime 2D seismic data 2D survey	3C seismic data 3D seismic data 3D survey 4C seismic data 4D seismic data	6FF40 a API Recommended Practice 10B Recommended Practice for Testing Well Cements API Specification 10A – Specification for Cements and Materials for Well Cementing S_w
A
abandonment costs abnormal events abnormal pressure abrasion test abrasive jetting absolute age absolute filter absolute open flow potential absolute permeability absolute pressure absolute volume absorbing boundary conditions absorptance absorption absorption band absorption oil abyss abyssal accelerator accelerator source accelerometer accommodation accretion accumulation accumulator accuracy acetic acid acid acid effect acid frac acid gas acid inhibitor acid job acid stimulation acid tank acid wash acidity acidize acidizing acoustic acoustic basement acoustic coupler acoustic emission acoustic impedance acoustic impedance section acoustic log acoustic mode acoustic positioning acoustic transducer acoustic transparency acoustic traveltime acoustic velocity acoustic velocity log acoustic wave acquisition acquisition log acrylamide polymer acrylamide-acrylate polymer acrylamido-methyl-propane sulfonate polymer acrylate polymer activation log active margin active sulfide activity of aqueous solutions acyclic compound additivity adjacent bed adjustable choke adjusted flow time adsorption advective transport modeling aeolian aeolotropy aerated layer aerobic aeromagnetic survey	AFE afterflow AGC AGC time constant agglomeration aggradation aggradational aggregate aggregation air drill air drilling air gun air shooting air wave air-cut mud Alford rotation alias filter aliasing alidade aliphatic compound alkaline alkaline flooding alkalinity alkalinity test allochthon allochthonous allogenic alluvial alluvium alpha processing altered zone alum aluminum activation log aluminum stearate ambient temperature amides amines Amott imbibition test amplitude amplitude anomaly amplitude distortion amplitude variation with offset AMPS anaerobic angle of approach angle of incidence angular dispersion angular unconformity anhydrite aniline point test anion anionic anisotropic anisotropic formation anisotropy annubar annular blowout preventer annular BOP annular flow annular gas flow annular pressure annular production annular space annular velocity annuli annulus anode anomalous anomaly anoxic antialias filter anticlinal anticlinal trap anticline antifoam antifoam agent	antisqueeze antithetic fault antiwhirl bit AOF AOFP aperture API API cement API fluid-loss test API gravity API unit API water apparent anisotropy apparent dip apparent matrix apparent velocity apparent viscosity apparent wavelength applied-potential method appraisal aquifer Archie equation Archie rock area open to flow arenaceous argillaceous arithmetic mean armor aromatic content test aromatic hydrocarbon array array induction array laterolog array propagation resistivity array sonic arrival arrival time artificial intelligence artificial lift as-delivered BTU asphalt asphaltenes asphaltic crude asphaltic mud additive assignment asthenosphere ASTM atmospheric corrosion attapulgite attenuate attenuation attenuation resistivity attitude attribute audio measurement aulacogen authigenic authochthon authority for expenditure autochthonous autocorrelation automatic gain control autotrack autotracking AV average reservoir pressure average velocity AVO axial loading axial surface azimuth azimuthal azimuthal density azimuthal laterolog azimuthal resolution
B
back off back up back-in back-pressure back-pressure valve back-propagation back-stripping back-up ring backflow backoff backpressure backscatter backside backup curve backwash bactericide bad hole balance point balanced array balanced plug balanced-activity oil mud ball catcher ball diverter ball dropper ball sealer ball-operated ballout band band-limited function band-pass band-reject bank firing barefoot barefoot completion barite barite plug barrel equivalent barrel pump barrels of liquid per day barrels of oil per day barrels of water per day baryte base exchange base log base map base of weathering base slurry base station baseline basement basic wavelet basin basket basket flowmeter basket sub batch mixer batch treatment bathyal battery battery site Bayesian inference Bayesian method Bayesian probability BBL or bbl Bc Bcf Bcf/D bead tracer beam beam pump bean choke Bearden units of consistency Beaufort scale bed bed thickness bed wrap bedrock bel bell nipple belt effect benchmark beneficiate beneficiation Benioff zone benthic benthos bentonite bentonite equivalent BHA BHCT BHP	BHST BHT bias bias weld bicarb bicarbonate bicenter bit bichromate salt bid and study agreement big-hole charge bilinear flow billion cubic feet billion cubic feet per day bimetallic corrosion bimetallism bin Bingham plastic model bioaccumulation bioassay biochemical oxygen demand biocide bioconcentration biodegradation biopolymer biostratigraphic biostratigraphy Biot theory biphasic bird birefringence bit bit box bit breaker bit nozzle bit record bit resistivity bitumen bivariate analysis black list Blaine fineness bland coring fluid blank pipe blanket gas blast joint blasting cap bleed off bleedoff line blended crude blender blind box blind ram blind zone blind-shear ram block blockage blowdown blowdy blowing the drip blowout blowout preventer BLPD BM BOD body wave Boltzmann probability distribution bomb bond log bonus consideration booster BOP BOP stack BOPD borehole borehole compensation borehole correction borehole gravity borehole gravity meter borehole seismic data borehole televiewer Born method bottle test bottom log interval bottom sample bottomhole assembly bottomhole choke bottomhole circulating temperature bottomhole gas separator bottomhole heater bottomhole injection pressure (bhip) bottomhole pressure bottomhole pressure (BHP) bottomhole sampler	bottomhole shut-in bottomhole static temperature bottomhole static temperature (BHST) bottomhole temperature bottomhole temperature (BHT) bottoms-up bottoms-up mud sample Bouguer anomaly Bouguer correction Bouma sequence bound-fluid log boundary conditions bounded reservoir bow tie bow-spring centralizer box box plots Boyle's Law Boyle's Law Double Cell Boyle's Law Single Cell brachistochrone braided line brake break break circulation break out breakdown pressure breaker breakout breakout cathead breakout tongs breakthrough bridge bridge plug bridge-off bridging agent bridging material bridle Briggs color cube bright spot brine bring in the well British thermal unit broach broadside array bromide brine bromocresol green Brookfield viscometer brownfield Brownian motion brute stack BS&W BTU bubble count bubble effect bubble flow bubblepoint bucking coil bucking current buffer buffer solution buffered mud buffered solution buggy vibro buildup test bulk modulus bulk relaxation bulk volume bull plug bullet perforating bullhead bump the plug bundle buoyancy buoyancy method burn shoe burn-over butt weld butterfly chart button resistivity buttress thread BWOB BWOC BWOW BWPD by weight of blend by weight of cement by weight of water bypass bypass velocity bypassed mud
C
C pump cable cable head cable-tool drilling cake cake consistency cake thickness calcite calcium bromide calcium carbonate calcium carbonate plug calcium chloride calcium contamination calcium hydroxide calcium mud calcium naphthenate calcium oxide calcium sulfate calcium test calibration caliche caliper log camera cap cap rock cap the well capacitance log capacitance meter capillary pressure curve capillary tube viscometer capillary-suction-time test caprock effect capsule gun carbon density carbon dioxide carbon dioxide corrosion carbonate carbonate gamma ray carbonate ion carbonate scale carbonate test carboxymethyl starch carboxymethyl, hydroxyethylcellulose carboxymethylcellulose carried working interest carrier fluid carrier gun carrying capacity carryover cartridge cased hole casing casing bowl casing burst pressure casing centralizer casing collar casing collar locator (CCL) casing collar log casing completion casing coupling casing grade casing gun casing hanger casing hardware casing joint casing patch casing point casing pressure casing reciprocation casing roller casing scraper casing shoe casing shoe test casing spool casing string casing swage casing test casing thread casing valve casing-inspection log casing-potential profile casinghead cat line cataclasite cataclastic cathead cathode cathodic protection cation cation-exchange capacity cationic catwalk caustic extraction test caustic potash caustic soda cave effect cavings cavitation CDP CEC cellar cellulosic polymer cement cement accelerator cement additive cement bond log cement dispersant cement evaluation log cement extender cement head cement plug cement retainer cement retarder cement squeeze cementation cementation exponent cementer cementing cementing engineer cementing plug centipoise centralizer centrifugal pump centrifuge CERCLA cesium acetate cesium formate chain tongs chalk channel channel wave channeling character charged zone check valve check-shot survey chelate chelating agent chelation chelation agent chemical barrel chemical cutter chemical diversion chemical diverter	chemical flooding chemical injection chemical neutron source chemical oxygen demand chemical wash chemical-marker injection Chenevert Method chert cherty chloride test chlorite choke choke line choke manifold CHOPS Christmas tree chromate salt chrome lignite chrome lignosulfonate chrome tubing chrome-free chromic salt chronostratigraphic chart chronostratigraphy churn flow CI circle shooting circulate circulate out circulation circulation device circulation loss circulation sub circulation system circulation time circulation valve citric acid classical reservoir modeling clastic sediment clathrate clay clay extender clay stabilizer clay swelling clay-bound water clay-water interaction clean cleanout cleanup clear brine clear-water drilling close-in closed mud system closed-chamber testing closed-in well closing unit closure closure pressure cloud point cloud point glycol cluster cluster analysis CMC CMC-Hi Vis CMC-HVT CMC-Lo Vis CMC-LVT CMHEC CMP CMS CO2 injection coal coalesce coalescence coarse coating coating flaw COD coding COFCAW cogeneration coherence coherence filtering coherence map coherence vector map coherent coherent detection coherent noise coiled tubing coiled tubing completion coiled tubing connector coiled tubing drilling coiled tubing string coiled tubing unit coke cokriging cold heavy oil production with sand cold production collapse pressure collar collar locator collar lock collar log collector collision colloid colloidal colloidal solids colloidal suspension combi BOP combination string come out of the hole commercial rate commingled completion commingled flow common depth point common midpoint common midpoint method common reflection point common-offset common-receiver communitization compaction compaction correction company man company representative compartment compartmentalization compatibility compatible scales compensated neutron log compensated-density log competent complete a well completion completion fluid completion skin complex-trace analysis composite log composite stream compositional fluid analysis compressibility compression ratio compression-set packer	compressional wave compressor compressor plant Compton scattering computed tomography concentric concentric fold conceptual model concession condensate condensate liquids condensate ratio condensed section conditional simulation conductance conductive invasion conductive rock matrix model conductivity conductometric titration conductor pipe conformable conformity conical projection coning connate water connection consistency consistometer consolidated consolidation constant rate contact contact angle contact time contaminant continental shelf contingency plan continuity equation continuous gas lift continuous phase contour contour interval contour map contract depth control line controlled time survey convection conventional mud convergence convergent converted wave conveyance convolution convolve copolymer copper carbonate core core gamma log core image core plug core testing coring fluid corkscrew hole corrected gamma ray correcting pressure to a datum correlate correlation correlation log correlogram corrosion corrosion control corrosion coupon corrosion fatigue corrosion inhibitor corrosion rate corrosion-resistant alloy (CRA) cost oil counterbalance weight counterbalance winch coupling coupon CPMG cracking craton creaming crest cresting critical angle critical damping critical flow rate critical gas flow rate critical matrix critical moment critical rate critical reflection crooked hole crop out cross dipole cross section cross-sectional crosscorrelate crosscorrelation crosscorrelation flowmeter crossflow crossline crosslinker crossover crossover service tool crossplot crossplot porosity crosswell tomography crown block crown valve crude oil crushed zone crust crystallization temperature CSS CT cubic packing cultural anomaly cultural noise curing curve curve fitting curve matching cushion cut cut oil cut point cut-and-thread fishing technique Cutt point cuttings cuttings lifting CWA cycle condensate cycle gas cycle skip cycle time cyclic steam injection cycling plant cyclothem cylinder
D
damage damaged zone damping darcy Darcy units dart data rate datum datum correction datum level day rate daylight tour dB DD DEA unit dead oil Dean-Stark extraction decibel decollement deconvolution deep induction deep seismic sounding deep tow deep-penetrating charge deep-water play deflector flowmeter deflocculant deflocculate deflocculated mud deflocculation defoamer defoaming plates degasser degree API dehydrate dehydration dehydrator delay rental deliverability test delta delta rho delta t delta-t stretch deltaic demulsifier densimeter densitometer density density contrast density current density measurement density profile departure curve dephasing depleted zone depletion deployment system depocenter deposit depositional energy depositional environment depositional system depth control depth controller depth conversion depth correlation depth datum depth map depth mark depth matched depth matching depth migration depth of invasion depth of investigation depth point depth reference depth reference point depth section depth wheel depth-derived derivative logs derrick derrick floor derrickman desander desiccant desilter desulfurize detail log detectable limit detector determinism deterministic deconvolution deterministic methods detonate detonating cord detonator detrital	detritus development deviated drilling deviated hole deviation deviation survey dewatering dewpoint dextral diagenesis diagenetic diagenetic porosity diameter of invasion diameter of investigation diamond bit diapir diatom diatomaceous diatomite dichromate salt dielectric dielectric constant dielectric permittivity dielectric propagation log dielectric resistivity diesel-oil mud diesel-oil plug difference map differential compaction differential pressure differential pressure sticking differential SP differential spectrum differential sticking differential weathering correction differential-temperature log difficult to disperse difficult to disperse in salt diffraction diffraction stack diffusion diffusion equation diffusion relaxation dike dilatancy dilatancy theory dilatation dilatational wave diluent dilution dilution water dim spot dip dip correction dip fault dip moveout dipole dipping bed direct emulsifier direct hydrocarbon typing direct-indicating viscometer directional driller directional drilling directional permeability directional survey directional variograms directional well directivity dirty disbonding disconformity discontinuity disharmonic dispersant dispersed bubble flow dispersed clay dispersion displacement displacement fluid disposal well dissolved solids distillation extraction distortion distributed-temperature log distribution diurnal variation divergence diversion diverter diverter flowmeter diverting agent division order Dix formula DMO dog collar doghouse dogleg dolomite dolomitization	dolostone domain domainal fabric domainal structure dome doodlebugger dope dosing pump double refraction downdip downhole gauge downhole receiver downhole safety valve (DSV) downhole sensors downhole source downlap downstream downstream pipeline downstroke downward continuation drag bit drag-bag drainage drainage area drainage volume drainhole drape drawdown drawdown test drawworks Drdger tube drift drill bit drill collar drill solids drill-in fluid drill-noise vertical seismic profile drillable packer drilled solids driller driller's depth drilling break drilling contractor drilling crew drilling detergent drilling fluid drilling foreman drilling mud drilling procedure drilling program drilling rate drilling rig drilling riser drilling-fluid engineer drillpipe drillpipe conveyed drillship drillstem drillstem test drillstring drip drip accumulator drop ball drop bar drop sub drop-off gun dropout dry bed dry combustion dry forward combustion dry gas dry hole dry oil dry rock dry-bed dehydrator DSS DST DST pressure chart dual completion dual induction dual water dual-permeability reservoir dual-porosity reservoir dummy valve dump bailer duplex pump duster dyke dynamic correction dynamic filter press dynamic filtration dynamic fluid level dynamic positioning dynamic range dynamic-aging test dynamite dynamometer dynamometer card
E
early-time transient data earthquake easy to disperse easy to disperse in salt eccentralizer eccentric eccentricity ECD echo spacing EDA eddy current eddy-current measurement EDTA eel effective laminar flow effective medium theory effective permeability effective porosity effective shot density effective velocity effective water saturation effective wellbore radius eigenvector elastic elastic constants elastic deformation elastic impedance elastic limit elastic moduli elastic neutron scattering elastic wave elasticity electric gas-lift valves electric probe electric submersible pump electrical anisotropy electrical conductivity electrical coupon electrical double layer electrical impedance probe electrical log electrical permittivity electrical resistance probe	electrical resistivity electrical stability test electrical survey electrode device electrode resistivity electrodynamic brake electrohygrometer electrokinetic potential electromagnetic caliper electromagnetic method electromagnetic propagation electromagnetic propagation measurement electromagnetic thickness elemental capture spectroscopy elevation correction elevator embedded wavelet embrittlement empirical emulsifier emulsion emulsion flow emulsion mud en echelon encapsulation endfire array endless tubing endpoint enhanced diffusion enhanced oil recovery entrained gas entrance hole environmental corrections eolian EOR EPA Epanechnikov kernel epithermal neutron porosity measurement epm equalizing loop equalizing valve equation of state equipotential method	equivalent circulating density equivalent conductance equivalent sack equivalent water resistivity equivalent weight erode erosion erosion-corrosion error ES test escape line ESP estuarine estuary Euclidian dimension Euclidian distance eustasy eustatic eustatic sea level evaporation pit evaporite evaporitic evening tour event excavation effect excess cement exit velocity expanding cement expansion joint expectation expendable gun expendable plug expert system exploration exploration play exploratory explosive seismic data extended spread extensive dilatancy anisotropy external cutter external phase external pulling tool external upset
F
f-k domain f-k plot facies facies modeling fairway falloff test fan shooting Fann viscometer far water farmee farmor farmout fast diffusion fast formation fast Fourier transform fast-formation arrival fast-neutron reaction fatty acid fatty-acid soap fault fault trap Faye correction FD fee-simple interest feldspar felsic fence diagram Fermat's principle ferro-chrome lignosulfonate ferrous sulfide FFT fiber LCM fiber lost-circulation material field field tape field weld fill cement fill sub film-forming amines filter filter cake filter cell filter loss filter media filter medium filter press filter-cake quality filter-cake thickness filtered brine filters filtrate filtrate slump filtrate tracer filtrate volume filtration filtration test cell filtration tester final flow period final flow rate final flowing pressure final shut-in period fine fines fines migration fingerboard fingering finite-conductivity fracture finite-wellbore solution fire flooding firing head first arrival first break first reading fish fish eye fishbone wells fishing	fishing bell fishing diagram fishing neck fishing tool FITR fitted model fitted variogram five-spot fixed choke fixed-cutter bit fixed-source method flag flag joint flake LCM flake lost-circulation material flange flange up flange-up flapper valve flare flare gas flash point flat gels flattened section flexural mode float collar float joint float shoe floc flocculant flocculate flocculation flooding surface flow after flow flow back flow check flow coupling flow efficiency flow loop flow model flow period flow profile flow regime flow simulation flow structure flow unit flow-after-flow tests flow-concentrating flower structure flowing neutron log flowing pressure flowing well flowline flowline manifold flowline mud sample flowline sample flowmeter flowstream flowstream sample fluid compatibility test fluid compressibility fluid contact fluid flow fluid invasion fluid level fluid loss fluid pound fluid tester fluid-density log fluid-friction reducer fluid-interface log fluid-loss additive fluid-loss control fluid-loss-control material fluoboric acid fluoroscopy flush joint flush production	flushed zone flushed-zone water saturation fluvial flux leakage fly ash foam breaker foam diversion foam generator foamed cement foaming agent foamy oil fold footprint foreign content formaldehyde formate formation formation damage formation evaluation while drilling formation exposure time formation factor formation fluid formation fracture pressure formation pressure formation water formic acid forward modeling forward problem fossil four-component seismic data four-dimensional seismic data Fourier analysis Fourier synthesis Fourier transform Fourier transform infrared spectroscopy frac ball frac crew frac gel frac gradient frac gun frac job frac pump frac valve fractal fractal analysis fractal networks fracture fracture acidizing fracture conductivity fracture gradient fracture half-length fracture networks fracture porosity fractured-well analysis fracturing pressure free fluid free gas free point free water free-air correction free-induction decay free-point indicator free-water knockout frequency frequency domain fresh core fresh water Fresnel zone friction effect friction reducer froth flow FT full waveform fullbore fullbore spinner funnel viscosity FWKO
G
gain Gal galena galvanic anodes gamma ray densitometer gamma ray interactions gamma ray log gamma-gamma log Garrett Gas Train gas anchor gas buster gas cap gas chimney gas condensate gas coning gas deviation factor gas drive gas formation volume factor gas gravity gas hydrate gas in solution gas injection gas interference gas lift gas lock gas migration gas processing plant gas sand gas separator gas show gas well gas-bearing gas-cap drive gas-cut mud gas-holdup log gas-lift mandrel gas-lift valve gas-oil contact gas-oil contact (GOC)