Aaacrylamido methyl propane sulfonate polymeramplitude variation with offsetareal displacement efficiency

API Recommended Practice 10B Recommended Practice for Testing Well Cementsacrylamido-methyl-propane sulfonate polymeramplitude variation with offset and azimuthareal sweep efficiency

API Specification 10A Specification for Cements and Materials for Well Cementingacrylate polymerAMPSarenaceous

abandonment costsactivation loganaerobicargillaceous

abnormal eventsactive marginanalogarithmetic mean

abnormal pressureactive sulfideangle of approacharmor

abrasion testactivity of aqueous solutionsangle of incidencearomatic content test

abrasive jettingacyclic compoundangular dispersionaromatic hydrocarbon

absolute ageadditivityangular unconformityarray

absolute filteradhesion tensionanhydritearray induction

absolute open flow potentialadjacent bedaniline point testarray laterolog

absolute permeabilityadjustable chokeanionarray propagation resistivity

absolute pressureadjusted flow timeanionicarray sonic

absolute volumeadsorbed gasanisotropicarrival

absorbing boundary conditionsadsorptionanisotropic formationarrival time

absorptanceadvective transport modelinganisotropyartificial intelligence

absorptionaeolianannubarartificial lift

absorption bandaeolotropyannular blowout preventeras delivered BTU

absorption oilaerated layerannular BOPas-delivered BTU

abyssaerobicannular flowASP flooding

abyssalaeromagnetic surveyannular gas flowasphalt

acceleratorAFEannular pressureasphaltene onset concentration

accelerator sourceafterflowannular productionasphaltene onset pressure

accelerometerAGCannular spaceasphaltene precipitation

accommodationAGC time constantannular velocityasphaltenes

accretionagglomerationannuliasphaltic crude

accumulationaggradationannulusasphaltic mud additive

accumulatoraggradationalanodeassignment

accuracyaggregateanomalousasthenosphere

acetic acidaggregationanomalyASTM

acidair cut mudanoxicatmospheric corrosion

acid effectair drillantialias filterattapulgite

acid fracair drillinganticlinalattenuate

acid gasair gunanticlinal trapattenuation

acid inhibitorair shootinganticlineattenuation resistivity

acid jobair waveantifoamattitude

acid numberair-cut mudantifoam agentattribute

acid stimulationAlford rotationantisqueezeaudio measurement

acid tankalias filterantithetic faultaulacogen

acid washaliasingantiwhirl bitauthigenic

acidityalidadeAOFauthority for expenditure

acidizealiphatic compoundAOFPautochthon

acidizingalkalineapertureautochthonous

acousticalkaline floodingAPIautocorrelation

acoustic basementalkaline-surfactant-polymer floodingAPI cementautomatic gain control

acoustic coupleralkalinityAPI fluid loss testautotrack

acoustic emissionalkalinity testAPI fluid-loss testautotracking

acoustic impedanceallochthonAPI gravityAV

acoustic impedance sectionallochthonousAPI unitAVA

acoustic logallogenicAPI waterAVAZ

acoustic modealluvialapparent anisotropyaverage reservoir pressure

acoustic positioningalluviumapparent dipaverage velocity

acoustic transduceralpha processingapparent matrixAVO

acoustic transparencyaltered zoneapparent velocityAVOAZ

acoustic traveltimealumapparent viscosityaxial loading

acoustic velocityaluminum activation logapparent wavelengthaxial surface

acoustic velocity logaluminum stearateapplied-potential methodaxis of rotational symmetry

acoustic waveambient temperatureappraisalazimuth

acquisitionamidesaquiferazimuthal

acquisition logaminesArchie equationazimuthal density

acrylamide acrylate polymeramplitudeArchie rockazimuthal laterolog

acrylamide polymeramplitude anomalyarea open to flowazimuthal resolution

acrylamide-acrylate polymeramplitude distortion

Bback flowBayesian inferenceblanket gasBoyle's Law Double Cell

back inBayesian methodblast jointBoyle's Law Single Cell

back offBayesian probabilityblasting capbrachistochrone

back pressureBBL or bblbleed offbraided line

back pressure valveBcbleedoff linebrake

back propagationBcfblended crudebreak

back strippingBcf/Dblenderbreak circulation

back upbead tracerblind boxbreak out

back up ringbeamblind rambreakdown pressure

back washbeam pumpblind shear rambreaker

backflowbeanblind zonebreakout

background gasbean chokeblind-shear rambreakout cathead

back-inBearden units of consistencyblockbreakout tongs

backoffBeaufort scaleblockagebreakthrough

backpressurebedblow downbridge

back-pressurebed thicknessblow outbridge off

back-pressure valvebed wrapblow out preventerbridge plug

back-propagationbedrockblow-bybridge-off

backscatterbelblowdownbridging agent

backsidebell nippleblowing the dripbridging material

back-strippingbelt effectblowoutbridle

backup curvebenchmarkblowout preventerBriggs color cube

back-up ringbeneficiateBLPDbright spot

backward multiple-contact testbeneficiationBMbrine

backwashBenioff zoneBODbring in the well

bactericidebenthicbody waveBritish thermal unit

bad holebenthosBoltzmann probability distributionbroach

balance pointbentonitebombbroadside array

balanced activity oil mudbentonite equivalentbond logbromide brine

balanced arrayBGGBond numberbromocresol green

balanced plugBHAbonus considerationBrookfield viscometer

balanced-activity oil mudBHCTBoolean simulationbrownfield

ball catcherBHPboosterBrownian motion

ball diverterBHSTBOPbrute stack

ball dropperBHTBOP stackBS&W

ball operatedbiasBOPDBTU

ball outbias weldboreholebubble count

ball sealersbicarbborehole compensationbubble effect

ball-operatedbicarbonateborehole correctionbubble flow

balloutbicenter bitborehole gravitybubble point

bandbichromate saltborehole gravity meterbubblepoint

band limited functionbid and study agreementborehole orientationbucking coil

band passbig hole chargeborehole seismic databucking current

band rejectbig-hole chargeborehole televiewerbuffer

band-limited functionbilinear flowBorn methodbuffer solution

band-passbillion cubic feetbottle testbuffered mud

band-rejectbillion cubic feet per daybottom log intervalbuffered solution

bank firingbimetallic corrosionbottom samplebuggy vibro

barefootbimetallismbottomhole assemblybuildup test

barefoot completionbinbottomhole chokebulk modulus

bariteBingham plastic modelbottomhole circulating temperaturebulk relaxation

barite plugbioaccumulationbottomhole gas separatorbulk volume

barrel equivalentbioassaybottomhole heaterbull plug

barrel pumpbiochemical oxygen demandbottomhole injection pressure (bhip)bullet perforating

barrels of liquid per daybiocidebottomhole pressurebullhead

barrels of oil per daybioconcentrationbottomhole samplerbump the plug

barrels of water per daybiodegradationbottomhole shut inbundle

barytebiopolymerbottomhole shut-inbuoyancy

base exchangebiostratigraphicbottomhole static temperaturebuoyancy method

base logbiostratigraphybottomhole temperatureburn over

base mapBiot theorybottoms upburn shoe

base of weatheringbiphasicbottoms up mud sampleburn-over

base oilbirdbottoms-upbutt weld

base slurrybirefringencebottoms-up mud samplebutterfly chart

base stationbitBouguer anomalybutton resistivity

baselinebit boxBouguer correctionbuttress thread

basementbit breakerBouma sequenceBWOB

basic waveletbit nozzlebound fluidBWOC

basinbit recordbound waterBWOW

basketbit resistivityboundary conditionsBWPD

basket flowmeterbit tripbounded reservoirby weight of blend

basket subbitumenbound-fluid logby weight of cement

batch mixerbivariate analysisbow tieby weight of water

batch treatmentblack listbow-spring centralizerbypass

bathyalBlaine finenessboxbypass velocity

batterybland coring fluidbox plotsbypassed mud

battery siteblank pipeBoyle's Law

CC pumpcement retainercoal-seam gascontinuity equation

cablecement retardercoarsecontinuous gas lift

cable headcement squeezecoatingcontinuous phase

cable-tool drillingcementationcoating flawcontinuous reservoir

cakecementation exponentCODcontour

cake thicknesscementercodingcontour interval

calcitecementingCOFCAWcontour map

calcium bromidecementing engineercogenerationcontract depth

calcium carbonatecementing plugcoherencecontrol line

calcium carbonate plugcentipoisecoherence filteringcontrolled time survey

calcium chloridecentralizercoherence mapconvection

calcium contaminationcentrifugal pumpcoherence vector mapconventional mud

calcium hydroxidecentrifugecoherentconventional reservoir

calcium mudCERCLAcoherent detectionconvergence

calcium naphthenatecesium acetatecoherent noiseconvergent

calcium oxidecesium formatecoiled tubingconverted wave

calcium sulfatechain tongscoiled tubing completionconveyance

calcium testchalkcoiled tubing connectorconvolution

calibrationchannelcoiled tubing drillingconvolve

calichechannel wavecoiled tubing stringcopolymer

caliper logchannelingcoiled tubing unitcopper carbonate

cameracharactercokecore

capcharged zonecokrigingcore analysis

cap rockcheck shot surveycold heavy oil production with sandcore gamma log

cap the wellcheck valvecold productioncore image

capacitance logcheck-shot surveycollapse pressurecore plug

capacitance meterchelatecollarcore testing

capillary numberchelating agentcollar locatorcoreflooding

capillary pressure curvechelationcollar lockcoring fluid

capillary suction time testchemical barrelcollar logcorkscrew hole

capillary tube viscometerchemical cuttercollectorcorrected gamma ray

capillary-suction-time testchemical diversioncollisioncorrecting pressure to a datum

caprockchemical divertercolloidcorrelate

caprock effectchemical floodingcolloidalcorrelation

capsule gunchemical injectioncolloidal solidscorrelation log

carbide lag testchemical marker injectioncolloidal suspensioncorrelogram

carbon densitychemical neutron sourcecombi BOPcorrosion

carbon dioxidechemical oxygen demandcombination stringcorrosion control

carbon dioxide corrosionchemical potentialcome out of the holecorrosion coupon

carbonatechemical washcommercial ratecorrosion fatigue

carbonate gamma raychemical-marker injectioncommingled completioncorrosion inhibitor

carbonate ionChenevert Methodcommingled flowcorrosion rate

carbonate scalechertcommon depth pointcorrosion-resistant alloy (CRA)

carbonate testchertycommon midpointcosolvent

carboxymethyl hydroxyethylcellulosechloride testcommon midpoint methodcost oil

carboxymethyl starchchloritecommon offsetcosurfactant

carboxymethylcellulosechokecommon receivercounterbalance weight

carried working interestchoke linecommon receiver gathercounterbalance winch

carrier fluidchoke manifoldcommon reflection pointcoupling

carrier gunCHOPScommon sourcecoupon

carry overChristmas treecommon source gatherCPMG

carrying capacitychromate saltcommon-offsetcracking

carryoverchrome freecommon-receivercraton

cartridgechrome lignitecommon-receiver gathercreaming

cased holechrome lignosulfonatecommon-sourcecrest

casingchrome tubingcommon-source gathercresting

casing bowlchrome-freecommunitizationCRG

casing burst pressurechromic saltcompactioncritical angle

casing centralizerchronostratigraphic chartcompaction correctioncritical damping

casing collarchronostratigraphycompany mancritical flow rate

casing collar locator (CCL)churn flowcompany representativecritical gas flow rate

casing collar logCIcompartmentcritical matrix

casing completioncircle shootingcompartmentalizationcritical moment

casing couplingcirculatecompatibilitycritical rate

casing gradecirculate outcompatible scalescritical reflection

casing guncirculationcompensated density logcrooked hole

casing hangercirculation devicecompensated neutron logcrop out

casing hardwarecirculation losscompensated-density logcross dipole

casing headcirculation subcompetentcross over

casing inspection logcirculation systemcomplete a wellcross section

casing jointcirculation timecompletioncrosscorrelate

casing patchcirculation valvecompletion fluidcrosscorrelation

casing pointcitric acidcompletion skincrosscorrelation flowmeter

casing potential profileclassical reservoir modelingcomplex trace analysiscrossflow

casing pressureclastic intrusioncomplex-trace analysiscrossline

casing reciprocationclastic sedimentcomposite logcrosslinker

casing rollerclathratecomposite streamcrossover

casing scraperclaycompositional fluid analysiscrossover service tool

casing shoeclay bound watercompressibilitycrossplot

casing shoe testclay extendercompression ratiocrossplot porosity

casing spoolclay stabilizercompressional wavecross-sectional

casing stringclay swellingcompression-set packercrosswell electromagnetic tomography

casing swageclay water interactioncompressorcrosswell reflection tomography

casing testclay-bound watercompressor plantcrosswell seismic tomography

casing threadclay-water interactionCompton scatteringcrosswell tomography

casing valvecleancomputed tomographycrown block

casingheadclean outconcentriccrown valve

casing-inspection logcleanoutconcentric foldcrude oil

casing-potential profilecleanupconceptual modelcrushed zone

cat lineclear brineconcessioncrust

cataclasiteclear water drillingcondensatecrustal magnetic field

cataclasticclear-water drillingcondensate liquidscrystallization temperature

catagenesisclose incondensate ratioCSG

catheadclosed chamber testingcondensed sectionCSS

cathodeclosed in wellcondensing driveCT

cathodic protectionclosed mud systemconditional simulationcubic packing

cationclosed-chamber testingconductancecultural anomaly

cation exchange capacityclosed-in wellconductive invasioncultural noise

cation-exchange capacityclose-inconductive rock matrix modelcumulative production

cationicclosing unitconductivitycuring

catlineclosureconductometric titrationcurve

catwalkclosure pressureconductor pipecurve fitting

caustic extraction testcloud pointconformablecurve matching

caustic potashcloud point glycolconformitycushion

caustic sodaclusterconical projectioncut

cave effectcluster analysisconingcut and thread fishing technique

cavingsCMCconnate watercut oil

cavitationCMC-Hi Visconnectioncut point

CBMCMC-HVTconnection gascut-and-thread fishing technique

CDPCMC-Lo VisconsistencyCutt point

CECCMC-LVTconsistometercuttings

cellarCMHECconsolidatedcuttings lifting

cellulosic polymerCMPconsolidationCWA

cementCMSconstant composition expansioncycle condensate

cement acceleratorCO2 injectionconstant ratecycle gas

cement additivecoalcontactcycle skip

cement bond logcoal bed methanecontact anglecycle time

cement dispersantcoal seam gascontact timecyclic steam injection

cement evaluation logcoalbed methanecontaminantcycling plant

cement extendercoal-bed methanecontamination gascyclothem

cement headcoalescecontinental shelfcylinder

cement plugcoalescencecontingency plan

Ddamagedepth-deriveddirect hydrocarbon typingdraw down

damaged zonederivative logsdirect indicating viscometerdrawdown

dampingderrickdirect-indicating viscometerdrawdown test

darcyderrick floordirectional drillerdrawworks

Darcy unitsderrickmandirectional drillingdrift

dartdesanderdirectional permeabilitydrill bit

data ratedesiccantdirectional surveydrill collar

datumdesilterdirectional variogramsdrill in fluid

datum correctiondesulfurizedirectional welldrill noise vertical seismic profile

datum leveldetail logdirectivitydrill pipe

day ratedetectable limitdirtydrill ship

daylight tourdetectordisbondingdrill solids

dBdetergencydisconformitydrill string

DDdeterminismdiscontinuitydrillable packer

DEA unitdeterministic deconvolutiondisharmonicdrilled solids

dead oildeterministic methodsdispersantdriller

Dean-Stark extractiondetonatedispersed bubble flowdriller's depth

decibeldetonating corddispersed claydrill-in fluid

decollementdetonatordispersiondrilling break

deconvolutiondetritaldisplacementdrilling contractor

deep inductiondetritusdisplacement efficiencydrilling crew

deep penetrating chargedevelopmentdisplacement fluiddrilling detergent

deep seismic soundingdeviated drillingdisplacement frontdrilling fluid

deep towdeviated holedisposal welldrilling foreman

deep-penetrating chargedeviationdissolved solidsdrilling mud

deepwater playdeviation surveydistillation extractiondrilling procedure

deep-water playdew pointdistortiondrilling program

deflector flowmeterdewateringdistributed temperature logdrilling rate

deflocculantdewpointdistributed-temperature logdrilling rig

deflocculatedextraldistributiondrilling riser

deflocculated muddiagenesisdiurnal variationdrilling-fluid engineer

deflocculationdiageneticdivergencedrill-noise vertical seismic profile

defoamerdiagenetic porositydiversiondrillpipe

defoaming platesdiameter of invasiondiverterdrillpipe conveyed

degasserdiameter of investigationdiverter flowmeterdrillship

degree APIdiamond bitdiverting agentdrillstem

dehydratediapirdivision orderdrillstem test

dehydrationdiatomDix formuladrillstring

dehydratordiatomaceousDMOdrip

delay rentaldiatomitedog collardrip accumulator

deliverability testdichromate saltdog housedrop ball

deltadielectricdog legdrop bar

delta rhodielectric constantdoghousedrop sub

delta tdielectric permittivitydoglegdropoff gun

delta t stretchdielectric propagation logdolomitedrop-off gun

deltaicdielectric resistivitydolomitizationdropout

delta-t stretchdiesel oil muddolostonedry bed

demulsifierdiesel-oil muddomaindry bed dehydrator

densimeterdiesel-oil plugdomainal fabricdry combustion

densitometerdifference mapdomainal structuredry forward combustion

densitydifferential compactiondomedry gas

density contrastdifferential pressuredoodlebuggerdry hole

density currentdifferential pressure stickingdopedry oil

density measurementdifferential SPdosing pumpdry rock

density profiledifferential spectrumdouble refractiondry-bed dehydrator

departure curvedifferential stickingdown dipDSS

dephasingdifferential temperature logdown lapDST

depleted zonedifferential weathering correctiondown streamDST pressure chart

depletiondifferential-temperature logdown strokedual completion

deployment systemdifficult to dispersedowndipdual induction

depocenterdifficult to disperse in saltdownhole gaugedual permeability reservoir

depositdiffractiondownhole receiverdual porosity reservoir

depositional energydiffraction stackdownhole safety valve (DSV)dual water

depositional environmentdiffusiondownhole sensorsdual-permeability reservoir

depositional systemdiffusion equationdownhole sourcedual-porosity reservoir

depth controldiffusion relaxationdownlapdue diligence

depth controllerdikedownstreamdummy valve

depth conversiondilatancydownstream pipelinedump bailer

depth correlationdilatancy theorydownstrokeduplex pump

depth datumdilatationdownward continuationduster

depth deriveddilatational waveDraeger tubedyke

depth mapdiluentdrag bagdynamic correction

depth markdilutiondrag bitdynamic filter press

depth matcheddilution waterdrag-bagdynamic filtration

depth matchingdim spotDrger tubedynamic fluid level

depth migrationdipdrain holedynamic miscibility

depth of invasiondip correctiondrainagedynamic positioning

depth of investigationdip faultdrainage areadynamic range

depth pointdip moveoutdrainage volumedynamic-aging test

depth referencedipoledrained testdynamite

depth reference pointdipole fielddrainholedynamometer

depth sectiondipping beddrapedynamometer card

depth wheeldirect emulsifier

Eearly time transient dataelectric gas-lift valvesencapsulationestimated ultimate recovery

early-time transient dataelectric probeend pointestuarine

earthquakeelectric submersible pumpendfire arrayestuary

easy to disperseelectrical anisotropyendless tubingeta ()

easy to disperse in saltelectrical conductivityendpointEuclidian dimension

eccentralizerelectrical couponenhanced diffusionEuclidian distance

eccentricelectrical double layerenhanced oil recoveryeustasy

eccentricityelectrical impedance probeentrained gaseustatic

ECDelectrical logentrance holeeustatic sea level

echo spacingelectrical permittivityenvironmental correctionsevaporation pit

EDAelectrical resistance probeeolianevaporite

eddy currentelectrical resistivityEORevaporitic

eddy current measurementelectrical stability testEtvs numberevening tour

eddy-current measurementelectrical surveyEPAevent

EDTAelectrode deviceEpanechnikov kernelexcavation effect

eelelectrode resistivityepithermal neutron porosity measurementexcess cement

effective laminar flowelectrodynamic brakeepmexit velocity

effective medium theoryelectrohygrometerepsilon ()expanding cement

effective permeabilityelectrokinetic potentialequalizing loopexpansion joint

effective porosityelectromagnetic caliperequalizing valveexpectation

effective shot densityelectromagnetic heatingequation of stateexpendable gun

effective velocityelectromagnetic methodequipotential methodexpendable plug

effective water saturationelectromagnetic propagationequivalent circulating densityexpert system

effective wellbore radiuselectromagnetic propagation measurementequivalent conductanceexploration

eigenvectorelectromagnetic thicknessequivalent sackexploration play

elasticelemental capture spectroscopyequivalent water resistivityexploratory

elastic anisotropyelevation correctionequivalent weightexplosive seismic data

elastic constantselevatorERDextended reach drilling

elastic deformationembedded waveleterodeextended spread

elastic impedanceembrittlementerosionextended-reach drilling

elastic limitempiricalerosion corrosionextensive dilatancy anisotropy

elastic moduliemulsifiererosion-corrosionexternal cutter

elastic neutron scatteringemulsionerrorexternal disturbance field

elastic waveemulsion flowES testexternal phase

elasticityemulsion mudescape lineexternal pulling tool

electric gas lift valvesen echelonESPexternal upset

Ffaciesfinal shut in periodflow modelformation fluid

facies modelingfinal shut-in periodflow periodformation fracture pressure

fairwayfineflow profileformation pressure

fall off testfinesflow regimeformation water

falloff testfines migrationflow simulationformic acid

fan shootingfingerboardflow streamforward modeling

Fann viscometerfingeringflow structureforward multiple-contact test

far waterfinite conductivity fractureflow unitforward problem

farmeefinite wellbore solutionflow-after-flow testsfossil

farmorfinite-conductivity fractureflowbackfour component seismic data

farmoutfinite-wellbore solutionflow-concentratingfour dimensional seismic data

fast diffusionfire floodingflower structurefour-component seismic data

fast formationfirefloodingflowing neutron logfour-dimensional seismic data

fast formation arrivalfiring headflowing pressureFourier analysis

fast Fourier transformfirst arrivalflowing wellFourier synthesis

fast neutron reactionfirst breakflowlineFourier transform

fast-formation arrivalfirst readingflowline manifoldFourier transform infrared spectroscopy

fast-neutron reactionfirst-contact miscibilityflowline mud samplefrac balls

fatty acidfishflowline samplefrac crew

fatty acid soapfish eyeflowmeterfrac fluid

fatty-acid soapfishbone wellsflowstreamfrac gel

faultfishingflowstream samplefrac gradient

fault trapfishing bellflue gasfrac gun

Faye correctionfishing diagramfluid compatibility testfrac job

FDfishing neckfluid compressibilityfrac pump

fee simple interestfishing toolfluid contactfrac valve

fee-simple interestfitted variogramfluid density logfractal

feldsparfive spotfluid flowfractal analysis

felsicfive-spotfluid interface logfractal networks

fence diagramfixed chokefluid invasionfracture

Fermat's principlefixed source methodfluid levelfracture acidizing

ferro-chrome lignosulfonatefixed-cutter bitfluid lossfracture conductivity

ferrous sulfidefixed-source methodfluid loss controlfracture gradient

FFTf-k domainfluid loss control materialfracture half-length

fiber LCMf-k plotfluid poundfracture networks

fiber lost circulation materialflagfluid testerfracture permeability

fiber lost-circulation materialflag jointfluid-density logfracture porosity

fieldflake LCMfluid-friction reducerfractured well analysis

field tapeflake lost circulation materialfluid-interface logfractured-well analysis

field weldflake lost-circulation materialfluid-loss additivefracturing fluid

fill cementflangefluid-loss controlfracturing pressure

fill subflange upfluid-loss-control materialfree air correction

film forming amineflapper valvefluoboric acidfree fluid

film-forming amineflarefluoroscopyfree gas

filterflare gasflush jointfree induction decay

filter cakeflash pointflush productionfree point

filter cake qualityflat gelsflushed zonefree point indicator

filter cake thicknessflattened sectionflushed zone water saturationfree water

filter cellflexural modeflushed-zone water saturationfree water knockout

filter lossfloat collarfluvialfree-air correction

filter mediafloat jointflux leakagefree-induction decay

filter mediumfloat shoefly ashfree-point indicator

filter pressflocfoam breakerfree-water knockout

filtercakeflocculantfoam diversionfrequency

filtercake qualityflocculatefoam floodingfrequency domain

filter-cake qualityflocculationfoam generatorfresh core

filtercake thicknessflood frontfoamed cementfresh water

filter-cake thicknessflooding patternfoaming agentFresnel zone

filtered brineflooding surfacefoamy oilfriction effect

filtersflow after flowfoldfriction reducer

filtrateflow after flow testsfootprintfroth flow

filtrate slumpflow assuranceforeign contentFT

filtrate tracerflow backformaldehydeFTIR

filtrate volumeflow checkformatefull waveform

filtrationflow concentratingformationFull-azimuth towed-streamer acquisition

filtration test cellflow couplingformation damagefullbore

filtration testerflow efficiencyformation evaluationfullbore spinner

final flow periodflow lineformation evaluation while drillingfunnel viscosity

final flow rateflow loopformation exposure timeFWKO

final flowing pressureflow meterformation factor

Ggaingasdrivegeophysicsgraveyard tour

Galgas-holdup loggeopressuregravimeter

galenagas-lift mandrelgeopressure gradientgravimetry

galvanic anodesgas-lift valvegeopressuredgravity

gamma ()gas-oil contactgeostatic pressuregravity anomaly

gamma ray densitometergas-pronegeostatistical methodsgravity drainage

gamma ray interactionsgas-solubility factorgeostatistical modelinggravity override

gamma ray loggas-water contactgeostatisticsgravity segregation

gamma-gamma loggas-well deliverabilitygeosteergravity survey

Garrett Gas Traingaswell gasgeosteeringgravity toolface

gas anchorgaswell liquidsgeothermal gradientgravity units

gas bearinggate valveGeronimo linegravity-stable displacement

gas bustergatherGGTgray list

gas capgathering linesghostgrease injection system

gas cap drivegathering systemGibbs' phenomenongrease-injection system

gas chimneygauge holeGIIPgreasing out

gas condensategauge pressuregilsonitegreedy algorithm

gas coninggauge ringgin polegreen gas

gas cut mudgauge tankglacialgreen list

gas deviation factorGaussian collocated cosimulationglass jar testgrey list

gas driveGaussian techniquesglauconitegrid

gas formation volume factorgelGlobal Positioning Systemgridding

gas gravitygel strengthGLRgridding algorithm

gas holdup loggelationglycolgrind

gas hydrategelled mudglycol absorbergripper blocks

gas in solutiongelled up mudglycol dehydratorgross production

gas injectiongelled-up mudglyphground roll

gas interferencegelsGOCgroundwater

gas liftgenerationgoose neckgroup

gas lift mandrelgeochemical loggooseneckgroup interval

gas lift valvegeochemistryGORgroup velocity

gas liquid ratiogeochronologygovernment takegrowth fault

gas lockgeologicGPSguar gum

gas migrationgeologic mapGPTSguard electrode

gas oil contactgeologic time scaleGRguard log

gas oil ratiogeologicalgrabenguide shoe

gas processing plantgeologistgradiomanometerguided wave

gas pronegeologygrain densitygumbo

gas sandgeomagnetic polarity reversalgranitegun

gas separatorgeomagnetic polarity time scalegranular LCMgun barrel

gas shalegeomagnetic secular variationgranular lost circulation materialgun clearance

gas showgeomechanicsgranular lost-circulation materialgun the pits

gas solubility factorgeometricgrapplegun zero

gas water contactgeometrical factorgravel packgunk

gas wellgeophonegravel pack gungunk plug

gas well deliverabilitygeophone arraygravel pack loggunk squeeze

gas/liquid ratiogeophone cablegravel pack screengunning the pits

gas/oil ratiogeophone intervalgravel-pack gunGWC

gas-bearinggeophone offsetgravel-pack loggyp mud

gas-cap drivegeophone patterngravel-pack screengypsum

gas-cut mudgeophysicist

HH2SHHPhorizontal drillinghydraulic head

hadehiatalhorizontal resistivityhydraulic horsepower

haematitehiatushorizontal separatorhydraulic packer

halitehierarchical cluster analysishorizontal severancehydraulic power pack

halo effecthigh explosivehorizontal transverse isotropyhydraulic pumping

hard rockhigh pressure squeezehorizontal treehydraulic release tool

hard waterhigh shot density gunHorner slopehydraulic set

hardbandinghigh side toolfacehorsthydraulic-set

hardgroundhigh temperature completionshostile environmenthydrocarbon

hardness ionhigh-gravity solidshot limehydrocarbon indicator

harmonichigh-pressure air injectionhot oilerhydrocarbon kitchen

harmonic distortionhigh-pressure squeezehot oilinghydrochloric acid

hatchhigh-pressure, high-temperaturehot tappinghydrocyclone

HBPhigh-pressure, high-temperature filtration testhot waterfloodinghydrocycloning

HClhigh-pressure, high-temperature viscometerHough transformhydrofluoric acid

HE starchhigh-shot density gunhousinghydrofluoric hydrochloric acid

headhighside toolfaceHP starchhydrofluoric-hydrochloric acid

head wavehigh-side toolfaceHPHThydrogen blistering

headerhigh-specific-gravity solidsHPHT filtration testhydrogen embrittlement

header boxhighstand systems tractHPHT viscometerhydrogen index

headinghistory matchingHSEhydrogen induced failures

heaterHLB numberHTIhydrogen probe

heater treaterhodogramHUDhydrogen sulfide

heavy metalholduphuff and puffhydrolysis

heavy oilholdup depthHumble formulahydrometer

heavy pipeholdup imagehumic acidhydrophile-lipophile balance number

heavyweight drillpipeholdup loghumidityhydrophilic

HECholdup maphumidity meterhydrophobic

hectoriteholdup meterhumpinghydrophone

held by productionhole cleaningHWDPhydrostatic bailer

hematitehollow carrier gunhybrid scalehydrostatic head

Herschel Bulkley fluidhomogeneityhydratehydrostatic pressure

Herschel-Bulkley fluidhomogeneoushydrationhydrothermal

hertzhomogeneous formationhydraulic bypasshydrothermal alteration

hesitation squeezehookhydraulic cementhydroxyethyl starch

heterogeneityhook loadhydraulic centralizerhydroxyethylcellulose

heterogeneoushookwall packerhydraulic disconnecthydroxypropyl starch

heterogeneous formationhopperhydraulic fracture monitoringhygrometer

HFhorizonhydraulic fracturinghygroscopic

HGShorizon slice

IICDinductioninjectiteinverse problem

ICVinduction electrical surveyinjectivity testinversion

IDinelastic neutron scatteringinjector headinvert emulsion

ideal gasinert sulfidein-lineinvert emulsion oil mud

IEOMinertial resistanceinsertinverted five spot

igneousinfill drillinginside blowout preventerinverted five-spot

IIPinfinite acting radial flowinside diameterinvert-emulsion oil mud

illiteinfinite acting reservoirin-situIO

ilmeniteinfinite conductivity fracturein-situ combustionion exchange

IMinfinite-acting reservoirin-situ fluid analysisIP

imageinfinite-conductivity fracturein-situ viscosity evaluationIPA

image wellinflatable packerinstrument hangerIPR

imbibitioninflow control deviceinstrumented pigiron carbonate

immatureinflow control valveintelligent welliron oxide

immiscibleinflow performance relationshipintensifieriron stabilizer

impedanceinformation theoryinterfacial tensioniron sulfide

impellerinhibitinterference testingiron-oxidizing bacteria

impermeableinhibited acidintermediateirreducible water

impermeable barrierinhibitionintermediate casingISO

impressed current anodesinhibitive mudintermediate casing stringisochore

improved oil recoveryinhibitorintermittent gas liftisochron

impulse activationinitial flow periodinternal flashisochron map

impulsive seismic datainitial reservoir pressureinternal phaseisochronal test

in lineinitial shut in periodinternal pulling toolisolated porosity

in situinitial shut-in periodinternational nautical mileisomerized olefin

in situ combustioninjection gasinterpolationisopach

in situ fluid analysisinjection lineinterpretationisopropanol

in situ viscosity evaluationinjection mandrelinterstitial gasisopropyl alcohol

incident angleinjection patterninterstitial waterisostasy

inclinationinjection pressureinterval methodisostatic

inclinometerinjection pulsed neutron loginterval timeisostatic correction

incompetentinjection pumpinterval transit timeisotropic

indicatorinjection testinterval velocityisotropic formation

indicator methodsinjection waterinterwell tomographyisotropic permeability

indicator modelsinjection wellinvaded zoneisotropy

induced gamma ray spectroscopyinjection well testinginvasioniterative forward modeling

induced particle plugginginjection/pulsed neutron loginverseiterative methods

induced polarizationinjection-well testinginverse filter

JJ factorjetjet pumpjug

J slotjet cutterjet velocityjug hustler

jacking framejet hopperjointjunk

jackupjet mixerJoule Thomsonjunk basket

jackup rigjet nozzleJoule-Thomsonjunk pusher

jarjet perforatingJ-slotjunk sub

jar test

KK coefficientkelly spinnerkill weight fluidk-means cluster analysis

kaolinitekerogenkill-weight fluidknock out

karstkeyseatkill-weight mudknockout

KBkhkilogram per cubic meterknot

kellykickkilopascalKoch curve

kelly bushingkillkinetic effectkriging

kelly downkill lineKirchhoff equationkriging weights

kelly hosekill pumpKirchhoff migrationkurtosis

Llacustrineleaseliquid hydrocarbonslongitudinal plot

lagleast time pathliquid levellongitudinal relaxation

lag gasleast-time pathliquid saturation methodlong-path multiple

lag timeleonarditeliquid-junction potentiallong-spacing sonic log

Lame constantlessor royaltylistric faultloose emulsion

laminar flowlevelwindlithificationlost circulation

laminated sandLGSlithofacieslost circulation material

laminationlicensing roundlithologiclost returns

landing collarlife of the welllithologic contactlost-circulation material

landing nipplelifting framelithologyLOT

LAOlifting sublithosphereLove wave

Laplace equationlight crude oillithostatic pressurelow colloid oil mud

laser diffractionlight hydrocarbonslithostratigraphiclow gravity solids

last readinglight pipelithostratigraphic inversionlow solids mud

last-shot detectionligninlithostratigraphylow solids nondispersed mud

late time transient datalignitelittorallow specific gravity solids

laterallignosulfonatelive cementlow velocity layer

late-time transient datalime mudlive oillow yield clay

latexlimestoneLNGlow-colloid oil mud

layerlimestone compatible scaleLNGClow-gravity solids

layer cake geometrylimestone porosity unitload celllow-pressure, low-temperature filtration test

layer strippinglimestone-compatible scaleload oillow-salinity waterflooding

layer-cake geometrylimited entrylocal contentlow-solids mud

layered reservoir testingline drivelocal holduplow-solids, nondispersed mud

lb/bblline source solutionlocal magnetic interferencelow-specific-gravity solids

lbm/bbllineamentlocal probelowstand systems tract

LC50linear alphaolefinlocklow-velocity layer

LCMlinear flowlock mandrellow-yield clay

lead acetate testlinerlock-upLPG

lead cementliner hangerlogLS

leak detectionliner patchlogarithmic meanlubricant

leak offline-source solutionlogginglubricator

leakofflipophiliclogging runlubricator valve

leakoff testliquefied natural gaslogging toollubricity

leaky modeliquefied natural gas carrierlogging unitLWD

lean gasliquefied petroleum gaslogging while drillinglyophilic

lean gas condensateliquid additivelogging-while-drillinglyophilic colloid

lean glycolliquid blockinglong path multiplelyophobic

lean oilliquid desiccantlong spacing sonic loglyophobic colloid

Mmmeasurements while drillingMinerals Management Servicemud additive

Mfmeasurements-while-drillingminifracmud aging cell

Mameasuring tankminimum miscibility concentrationmud anchor

maficmechanical diversionminimum miscibility enrichmentmud balance

magmamechanical jarminimum miscibility pressuremud cell

magnesium testmechanical skinminimum restrictionmud cleaner

magnetic constantmechanical stickingminimum time pathmud cup

magnetic fieldmedianminimum-time pathmud density

magnetic flux leakagemediumminute markmud engineer

magnetic mudmedium inductionmis tiemud filtrate

magnetic permeabilitymembrane potentialmisciblemud hopper

magnetic resonancememory gaugemiscible displacementmud house

magnetic reversal sequencemeniscusmistmud in

magnetic toolfacemercury displacement methodmist drillingmud in sample

magnetic total fieldmetagenesismist extractormud motor

magnetic-flux leakagemetal gainmist flowmud out

magneticsmetal lossmis-tiemud out sample

magnetometermetamorphicmixed depositsmud oven

magnetotelluric methodmetamorphismmixed metal hydroxidemud pit

main magnetic fieldmetermixed metal silicatemud program

make a connectionmeter calibrationmixed-metal hydroxidemud pulse telemetry

make holemeter capacitymixed-metal silicatemud report

make upmeter differenceMMCmud retort

make up watermeter factorMMEmud return line

makeup catheadmeter slippageMMHmud scale

makeup gasmethaneMMSmud still

makeup tongsmethane hydrateMMscfmud tracer

make-up watermethyl orangemobile offshore drilling unitmud up

mandrelmethyl orange alkalinitymobilitymud weight

manifoldmethylene blue dyemobility buffermud-aging cell

mantlemethylene blue testmobility controlmudcake

mapmethylglucoside drilling fluidmobility ratiomudding off

marginal wellmicamodelmudding up

marinemicellar polymer floodingmodelingmud-in sample

marine drilling risermicellar-polymer floodingmodified isochronal testmud-out sample

marine flooding surfacemicelleMODUmudrock

marker bedmicritemodulus of compressionMultiazimuth towed-streamer acquisition

marker jointmicroannulusmodulus of elasticitymulti-capacitance flowmeter

marketing agreementmicrobial enhanced oil recoverymodulus of rigiditymulticomponent seismic data

marlmicrocylindrical logMohomultifinger caliper

marshmicroemulsionMohorovicic discontinuitymultilateral

Marsh funnelmicrogelmoldic porositymultipass method

Marsh funnel viscositymicrolaterologmomentmultiphase

mass balancemicrologmonkey boardmultiphase flow

massifmicropaleontologymonkeyboardmultiphase fluid

mastmicroporositymonomermultiphase fluid flow

mast unitmicroresistivitymonopolemultiphase holdup log

master valvemicroseismic monitoringMonte Carlo risk analysismultiphase meter

material balancemicrospherical logMonte Carlo samplingmultiphase pump

material balance equationmiddle time transient dataMonte Carlo simulationmultiple completion

Material Safety Data Sheetmiddle-time transient datamontmorillonitemultiple isotope log

material-balance equationmidoceanic ridgemonumentmultiple isotope spectroscopy

matrixmidpointmoon poolmultiple rate tests

matrix acidizingmidrangemorning tourmultiple reflection

matrix stimulationmigratemosquito billmultiple regression

maturationmigrationmotormanmultiple salinity

maturityMilankovitch cyclesmouseholemultiple service contract

maximum flooding surfacemilk emulsion mudmoveable hydrocarbonsmultiple-contact miscibility

maximum recorded temperaturemillmoved hydrocarbonsmultiple-isotope log

maximum treating pressuremill outmoveoutmultiple-isotope spectroscopy

Maxwell's equationsmill shoemoving-source methodmultiple-rate tests

MBT testmilligrams per kilogrammpymultishot survey

MDmilligrams per literMRSmute

meanmillingMscf/dmutual solvent

measure pointmillion standard cubic feetMSDSMWD

measured depthmils per year penetrationMTMy

measurement after drillingmineralmudMYBP

measurement errormineral interestmud acidmysid shrimp

measurement range

Nnneriticnipple upnonhydrocarbon contaminants

naphthene base crude oilnestnipple-downnonideal gas

naphthene-base crude oilnested fractal structuresnipple-upnon-Newtonian fluid

naphthenic hydrocarbonnet gas productionnitrified fluidnonparticipating royalty

Narrow-azimuth seismic datanet oil productionnitrogen cushionnonparticipating royalty interest

native claynet profits interestnitrogen injectionnormal

native solids mudnet revenue interestnitrogen kickoffnormal fault

native state coreneural networksnitrogen liftnormal incidence

native-solids mudneutral pointnitrogen liftingnormal mode

natural completionneutralizationnitrogen unitnormal moveout

natural fractureneutralizeNMOnormal moveout correction

natural frequencyneutralizing solutionNMRnormal pressure

natural gamma ray spectroscopyneutron activation logno go landing nipplenormality

natural gasneutron captureNODAL* analysisnormal-moveout correction

natural gas liquidsneutron generatorno-go landing nippleNPDES

natural gasolineneutron interactionsnoiseNRM

natural remanent magnetismneutron lognoise lognuclear fluid densimeter

naturally flowing wellneutron porositynominal filternuclear magnetic resonance

naturally occurring radioactive materials (NORM)neutron-activation lognonconductive drilling fluidnuclear magnetic resonance measurement

nautical mileNewtonian fluidnonconformitynumerical methods

near surface correctionNGLnon-Darcy flownumerical model

near-surface correctionnipplenondipole fieldnumerical reservoir simulation

neat cementnipple down

OO ringoil kitchenone way timeO-ring

OBCoil miningone-dimensional seismic dataorogenic

OBRoil mudone-way timeorogeny

observeroil on cuttingsonlapOSHA

Occam's inversionoil poolOOCosmosis

ocean-bottom cableoil proneopen flow potentialosmotic pressure

OCMAoil sandopen holeOSPAR

octahedral layeroil swellingopen-flow potentialoutcrop

octanoloil water contactopenholeoutside diameter

octyl alcoholoil water interfaceopenhole completionovality limit

ODoil wellopenhole gravel packover travel

off pattern welloil wetopenhole packeroverbalance

off-pattern welloil/brine ratioopenhole testoverburden

offsetoil/water ratioopening bomboverflush

offset vertical seismic profileoil-base mudoperating agreementovermature

offset VSPoil-emulsion mudoperating gas-lift valve (OGLV)overpressure

offset welloilfieldoperating interestoverriding royalty

Ohm's lawoilfield batteryoperatoroverriding royalty interest

oil and gas leaseoil-in-water emulsionoptical indexovershot

oil and gas separatoroil-mud emulsifieroptical probeoverthrust

oil bankoil-proneorganic acidovertravel

oil base mudoil-water contactorganic depositOWC

oil contentoil-water interfaceorganophilicOWR

oil emulsion mudoil-wetorganophilic clayoxide closure model

oil fieldolefinic hydrocarbonorganophilic ligniteoxide-closure model

oil formation volume factoroligomerorifice meteroxygen activation

oil in water emulsionone dimensional seismic dataorifice valveoxygen scavenger

Pp rateperpendicular offsetpolished rodpressure-drawdown analysis

p waveperpendicular resistivitypolyacrylamidepressure-squared plot

P&Apetal basket flowmeterpolyacrylatepressure-transient analysis

Pfpetrographicpolyalkalene glycolpressure-transient well tests

Pmpetrographypolyalphaolefinpressurized mud balance

PACpetroleumpolyanionic celluloseprimary cementing

pack offpetroleum systempolyanionic ligninprimary completion components

packerpetroleum systems modelingpolycrystalline diamond compact bitprimary migration

packer flowmeterpetrologicpolyelectrolyteprimary porosity

packer fluidpetrologypolyglycerolprimary production

packing glandpetrophysical modelpolymerprimary recovery

packoffpetrophysical rock typepolymer floodingprimary recovery method

padpHpolymer plugprimary reflection

paddle blenderpH testpolyolprimary term

paddle mixerphantompolyolefinprime mover

PAGphasepolyphosphatesprimer cord

paid up leasephase redistributionpolysaccharideprincipal axis

paid-up leasephase shiftpony rodprincipal component analysis

pair productionphase shift resistivityPOOHprobability

paleontologyphase velocitypoolingprobe

paludalphase velocity logpoppet valveprocessing

palustrinephase-shift resistivityporeproduced fluid

palynologyphase-velocity logpore gasproduced water

PAOphenolphthaleinpore pressureproducing formation

paraffinphosphate saltpore pressure gradientproducing well

paraffin base crude oilphotoelectric effectpore pressure transmissionproduction

paraffin controlphoton logpore throatproduction bonus

paraffin inhibitorPHPApore-pressure gradientproduction casing

paraffin scraperPHPA mudpore-pressure transmissionproduction log

paraffin scratcherPIporosimeterproduction packer

paraffin-base crude oilpickporosityproduction payment

paraffinic hydrocarbonPickett plotporosity exponentproduction penalty

paraformaldehydepickleporosity unitproduction period

parallel foldpickling fluidporousproduction service contract

parallel resistivitypickupporous mediumproduction sharing contract

parameterpick-upporous plate techniqueproduction string

parametricpigportland cementproduction tubing

parasequencepig runportland cement clinkerproduction wing

parasequence boundarypiggingpositive displacement motorproductivity index (PI)

parasequence setpillpositive displacement pumpproductivity test

PARCOMpilot millpositive-displacement pumpprofile

partial completionpilot testpostprofile modification

partial penetrationpinpost matureprofile testing

participating interestpinch outpost-matureprofiling

particle plugging apparatuspinch-outpotassiumprofit oil

particle size distributionpipe dopepotassium ionprogradation

particle-plugging apparatuspipe heavypotassium mudprogressive cavity pumping system

particle-plugging testpipe lightpotential fieldprogressive gels

particle-size distributionpipe rackpounds per barrelpropagation constant

partitioningpipe rampour pointpropagation resistivity

parts per billionpipe stretchpower fluid injection ratepropagation resistivity measurement

parts per millionpipe trippower law fluidpropagation time

partypipelinepower oilproppant

party chiefpipeline capacitypower-fluid injection ratepropylene glycol normal propyl ether

party managerpipeline gaspower-law fluidprorated well

pascalpipeline oilpozzolanproration unit

passpipeline patrolpozzolanicprospect

passive marginPITPPAproximity log

patchPitot tubeppbpseudogeometrical factor

paypittingppgpseudoplastic

payoutplane tableppmpseudopressure plot

PDC bitplane wavePPTpseudostatic spontaneous potential

PDMplanktonp-ratepseudosteady state

peakplantprecipitatePSP

PEFplasticprecipitationpull out of the hole

peg leg multipleplastic deformationprecisionpull up

peg-leg multipleplastic fluidpreferential right to operatepulling tool

pendant-drop tensiometerplastic viscositypreferential right to purchasepull-up

penetration rateplate outpreflushpulse echo

peptizationplate tectonicspregelatinized starchpulsed neutron holdup log

peptizeplateauprehydratepulsed neutron spectroscopy log

peptized clayplatformprehydrated bentonitepulsed neutron spectroscopy measurement

peptizing agentplayprehydrationpulsed-neutron holdup log

perforateplay backpremium threadpulse-echo

perforate overbalancedplaybackpreservationpump barrel

perforate underbalancedPLTpreservativepump cavitation

perforated intervalplug and abandonpreserved corepump manifold

perforated linerplug flowpressurepump off

perforating acidplugging materialpressure builduppump submergence

perforating chargeplungepressure buildup analysispump volumetric efficiency

perforating depth control logplunger liftpressure capabilitypumpability

perforating depth-control logplunger overtravelpressure depletionpumper

perforating fluidPNPpressure drawdownpumping schedule

perforating gunPODpressure falloffpumping time

perforationpoint barpressure gaugepumping well

perforation densitypoint of departurepressure gradientpumping well tests

perforation penetrationpoisepressure huntpump-off

perforation phasingPoisson distributionpressure integrity testpush down

periodogramPoisson's ratiopressure senderpush-down

permafrostpolarpressure squared plotpusher

permanent datumpolar compoundpressure storage tankPV

permanent well monitoringpolaritypressure transient analysisPVT

permeabilitypolarity standardpressure transient testP-wave

permeability thicknesspolarization hornpressure transient well testpyrolysis

permeablepolarization timepressure transient well testspyrophosphate

permeameterpolished jointpressure-composition diagrampyrrhotite

permittivity

QQquantile mapquat aminequick look

Q wavequartilequaternary aminequicklook

QAquartzquebrachoquitclaim

quadrant densityquatquick limeQ-wave

quality assurance

RR signalrecoverable gas lift gasreservoir communicationrig down

Rhrecoveryreservoir descriptionrig floor

Rvrecovery factorreservoir drive mechanismsrig up

Rwarecovery forecastreservoir heightright angle set

rabbitrecycled gasreservoir heterogeneitiesright of first refusal

racking back pipered mudreservoir modelingright-angle set

radial arrayredoxreservoir pressurerigless operation

radial differential temperature logreduced water slurryreservoir simulationRIH

radial differential-temperature logreduced-water slurryreservoir-drive mechanismsring resistivity

radial faultingreducing agentresidence timeringworm corrosion

radial processingreefresidual bendrising-bubble apparatus

radial refractionreefalresidual oilRM

radial resolutionreelresinrock

radial responsereel back tensionresistive invasionrock mechanics

radio safe detonatorreel back-tensionresistivityrock properties

radio silencereeled tubingresistivity indexrock types

radioactive tracerreference pointresistivity logrod elevators

radioactive tracer logreflectionresolutionrod pump

radioactive-tracer logreflection coefficientresolution matchedrod string

radio-safe detonatorreflection tomographyresponse matchedrod unit

radius of curvaturereflectivityrestored state coreroll a tank

radius of investigationreflectorretarderroll line

ram blowout preventerrefractionretention timeroller cone bit

ram preventerrefractive indexretortroller stem

random errorrefractorretort methodroller-cone bit

random noiserefracturingretort solidsrolling aging test

random walk methodregressionretort testrolling-aging test

random-walk methodregression coefficientretrievable bridge plugroot mean square velocity

range of loadregressiveretrievable gunroot-mean-square velocity

rarefactionregulatory bodyretrievable packerROP

rate dependent skin effectrelative ageretrogradationrotary bushing

rate of penetrationrelative dielectric constantretrograde condensationrotary drilling

rate of shearrelative dielectric permittivityreturnsrotary hose

rate-dependent skin effectrelative filtrate volumereverse circulating valverotary steerable system

ratholerelative humidityreverse circulationrotary table

raw crude oilrelative permeabilityreverse combustionrotating control device

raw natural gasrelaxation timereverse faultrotational gas lift

rayrelaxed filtrate oil mudreverse-circulating valveroughneck

ray pathrelaxed-filtrate oil mudreversing outround thread

ray tracingrelease jointRHround trip

Rayleigh waverelinquishmentrheologicroustabout

raypathremedial cementingrheologicalroutine core analysis

RCDremote sensingrheological propertyROV

RCRAremotely operated vehiclerheologyroyalty

real time datarepeat sectionrheology modifierroyalty interest

real-time datarepeatabilityrhombohedral packingRP

reamreplacement velocityrich gasR-signal

receiverreproducibilityrich gas condensaterugose

reciprocatereserve mud pitrich glycolrugosity

reciprocating pumpreserve pitrich oilrun

recirculating mixerreserve-mud pitRich-azimuth towed-streamer acquisitionrun in hole

recordreservoirRicker waveletrunning squeeze

recorded datareservoir characterizationriftrunning tool

recorderreservoir characterization modelrigrupture disk

recorder carrier

SS waveshale baselinesmectitesteam trap

s.g.shale gassmectite claysteam-assisted gravity drainage

sabkhashale oilsmilesteamflood

sackshale shakerSnell's lawsteam-oil ratio

sacrificial anodeshalySNGstearate

safety clampshaped chargesnubsteerable motor

safety headshearsnubbersstem

safety jointshear modulussnubbingstep profile

safety spacershear pinsnubbing basketstep rate test

sagshear ramsnubbing forcestick and slip

SAGDshear ratesnubbing jackstimulation

saltshear seal BOPsoak phasestimulation byproduct

salt domeshear stocksoapstimulation fluid

salt plugshear strainsoda ashstochastic analysis

salt proximity surveyshear strengthsodium acid pyrophosphatestochastic methods

salt proximity vertical seismic profileshear strength measurement testsodium bicarbonatestochastic modeling

salt proximity VSPshear stresssodium carbonatestock tank

salt-proximity vertical seismic profileshear wavesodium chromatestock tank barrel

salt-proximity VSPshearometersodium dichromatestock-tank oil initially in place

saltwater flowshear-seal BOPsodium hydroxidestock-tank original oil in place

saltwater mudshear-strength measurement testsodium phosphateSTOIIP

sample frequencysheavesodium polyacrylateStoneley permeability

sample intervalsheensodium silicateStoneley wave

sample ratesheen testsoft lineSTOOIP

sampling errorshelfsoft rockstorm choke

sampling intervalshifted spectrumsoft waterstorm packer

sandshifting toolsoftlineSTP

sand bailershoeSolar terrestrial rhythmsstrain

sand cleanoutshoe jointsolid desiccantstrainer

sand consolidationshoe tracksolubilitystrap

sand controlshoot a levelsolution gasstrapping tape

sand liftingshoot a wellsolution gas drivestrata

sand lineshort tripsolution gasdrivestratified flow

sand outshort-path multiplesondestratigraphic analysis

sand productionshot depthsonde errorstratigraphic trap

sand testshot detectionsonicstratigraphy

sand trapshot pointsonic logstratum

sandfaceshotpointsonic measurementstreamer

sandoutshoulder bedsonologstreamer feathering

sandstoneshowsortingstrength retrogression

sandstone compatible scaleshrimp testsoundstress

sandstone petrographyshut in bottomhole pressuresourstress corrosion cracking

sandstone porosity unitshut in royaltysour corrosionstress induced anisotropy

sandstone-compatible scaleshut-in bottomhole pressuresour crude oilstress-corrosion cracking

SAPPshut-in pressuresour gasstress-induced anisotropy

SARA analysisshut-in royaltysourcestrike

satellite platformSH-wavesource patternstrike fault

saturated solutionSIBHPsource pointstrike-slip fault

saturationSIBPsource rockstrip gun

saturation equationside pocket mandrelsourcepointstripper rubber

saturation exponentside scan sonarSoxhlet extractorstripping

saturation unitside-pocket mandrelSPstripping ram

saver subsideriteSPAstroke

SBRside-scan sonarspace frequency domainstrokes per minute

SCALsideswipespace outstructural

scalesidetrackspace-frequency domainstructural analysis

scale inhibitorsidewallspacerstructural shale

scale inhibitor squeezesidewall corespacer fluidstructural steering

scale removalSierpinski gasketspacingstructural trap

scale-inhibitor squeezesieve analysisspacing unitstructure

scallop gunsigmaspecific gravitystructure map

scattergramsignalspecific permeabilitystuck

scavengersignal to noise ratiospectralstuck pipe

SCCsignal-to-noise ratiospectral density analysisstylolite

scintillation detectorsignaturespectrumstyrene

scoutsignature deconvolutionspherical divergencesub

scout ticketsilicaspherical flowsubduction

scrapersilica layerspherical focusingsubmersible drilling rig

scraper trapsilicatespherical harmonicsubsalt

scratchersilicate anionspherical separatorsubsea well

screensilicate mineralspherical wavesubsidence

screen outsilicate mudspill pointsubsurface pressure

screeningsilicic acidspin flowmetersubsurface safety valve (SSSV)

screenoutsiliciclastic sedimentspine and ribs plotsubsurface surface controlled safety valve (SSCSV)

scrubsiltspinner flowmetersubsurface surface-controlled safety valve (SSCSV)

scrubbersilver nitratespinner reversalsucker rod

scrubber oilsimilar foldspinning chainsucker rod pump

seabed geophonesimple multiplespinning-drop tensiometersuction pit

sealsimulated annealingspiral boreholesulfate reducing bacteria

seal assemblysimultaneous operation (SIMOP)splinesulfate resistance

seal receptaclesinc xspontaneous potentialsulfate resistant cement

sealboresingle pass methodspoolersulfate-reducing bacteria

sealbore packersingle phasespotsulfate-resistant cement

sealssingle phase flowspot samplesulfide

seating nipplesingle shot surveyspottingsulfide scavenger

seawater mudsingle tank composite samplespotting fluidsulfide stress cracking

secondary cementingSingle-azimuth towed-streamer acquisitionspreadsulfide test

secondary migrationsingle-pass methodspreading losssulfonated asphalt

secondary porositysingle-phasespudsulfonated polystyrene-maleic anhydride copolymer

secondary porosity indexsingle-phase flowspud mudsulfur light crude

secondary productionsingle-shot surveyspurt losssummation of fluids method

secondary recoverysingle-tank composite samplesquare logsuperficial velocity

secondary reflectionsinistralsqueezesuperposition

secondary termsinker barsqueeze cementingsuperposition in space

secondary-porosity indexsinteredsqueeze jobsuperposition in time

sedimentsinusoidsqueeze manifoldsupply vessel

sedimentarySIPsqueeze packersuppression

sedimentary basinsized calcium carbonatesqueeze pressuresurface casing

sedimentationsized saltsqueeze toolsurface controlled subsurface safety valve (SCSSV)

seepskewnessSRBsurface interest

seismicskidSSMAsurface pipe

seismic acquisitionskinSSMA copolymersurface pressure

seismic impedanceskin depthSSPsurface shut-in

seismic interpretationskin effectstabsurface tension

seismic lineskin factorstab insurface wave

seismic modelingslaked limestabbing valvesurface-controlled subsurface safety valve (SCSSV)

seismic processingslant hole rigstability metersurfactant

seismic recordslant rigstabilizationsurfactant flooding

seismic reflection tomographyslant stackstabilizedsurfactant-alternating gas

seismic refraction methodslant-hole rigstabilized gas wellsurge tank

seismic sectionslicklinestab-insurrounding bed

seismic stratigraphyslidestable archsurvey

seismic surveysliding sleevestacksuspended solids

seismic traceslim hole wellstacking velocitySV wave

seismic velocityslime forming bacteriastage separationSV-wave

seismic waveslime-forming bacteriastaged fracturingswab

seismic while drilling vertical seismic profileslimhole wellstandswab valve

seismic-while-drilling vertical seismic profileslim-tube teststand pipeswage

seismiteslipstandard batchswaging tool

seismogramslip and cutstandard temperature and pressureswamp

seismographslip jointstanding valveS-wave

seismologyslip lockstandoffsweep efficiency

seismometerslip velocitystandpipesweep pill

selective firingslip-and-cutstarchsweet

selective nippleslipsstatic aging testsweet corrosion

selective perforatingsloughing shalestatic correctionsweet crude

selective running toolslow formationstatic filter presssweet crude oil

semblanceslow release inhibitorstatic filtrationsweet gas

semisubmersibleslowing-down lengthstatic fluid levelsweet spot

sensitivityslowing-down timestatic pressuresweetening

separatorslownessstatic spontaneous potentialswellable packer

separator backpressureslowness time coherencestatic-aging testswivel

separator gasslowness-time coherencestaticsSWR

sepioliteslow-release inhibitorstationaritysyn

sequencesludgestationary slipssyncline

sequence boundaryslugstationary snubberssynthetic base fluid

sequence stratigraphyslug flowstatisticssynthetic base mud

sequential Gaussian simulationsluggingSTBsynthetic fault

sequestering agentslugging compoundsteady statesynthetic natural gas

setting toolslugging pillsteady state behaviorsynthetic seismogram

settling pitslurriessteady-state behaviorsynthetic seismograms

settling tankslurrysteamsynthetic/brine ratio

severanceslurry densitysteam chambersynthetic/water ratio

SH waveslurry stabilitysteam floodsynthetic-base fluid

shadow zoneslurry yieldsteam managementsynthetic-base mud

shakersmall pore watersteam oil ratiosystematic error

shalesmall-pore watersteam soaksystems tract

TT1TFNBtime-lapsetraveltime

T2TGtime-lapse seismic datatreater

tagTHAItitratetreating iron

tailtheoreticaltitrationtreatment fluid

tail buoythermal captureTIVtrend

tail cementthermal diffusion lengthTMtrip

tail mutethermal gradientTOCtrip gas

tail pipethermal maturitytoe to heel air injectiontrip out

Taitel Duklerthermal neutron absorbertomographytrip pill

Taitel-Duklerthermal neutron porosity measurementtongstriplex pump

tall oilthermal recoverytool jointtripping pipe

tallythermal simulationtool stringtrough

TAMEthermally activated mud emulsiontoolfacetrue amplitude recovery

tangential wavethickening timetoolpushertrue resistivity

tankthieftop drivetrue stratigraphic thickness

tank batterythief hatchtop leasetrue vertical depth

tank bottomsthief zonetop log intervaltrue vertical thickness

tank calibrationthinnertopdrivetrue-amplitude recovery

tank dikethixotropictopographic maptube wave

tank tablethixotropytornado charttubing broach

tankagethoriumtorpedotubing conveyed perforating

tankerthousand standard cubic feet per daytorque flowmetertubing displacement

tannic acidthread protectortortuositytubing end locator (TEL)

tanninthread ruletotal depthtubing grade

taper tapthreadformtotal hardness testtubing hanger

tapered cutoffthree component seismic datatotal organic carbontubing head

tapered stringthree dimensional seismic datatotal porositytubing job

TAPSthree dimensional surveytotal solidstubing joint

TARthree phase flowtourtubing performance curve (TPC)

tar sandthree phase separatortracetubing pressure

Taylor bubblesthree-component seismic datatracertubing puncher

TCPthree-dimensional seismic datatracer ejector measurementtubing seal assembly

TDthree-dimensional surveytracer loss measurementtubing testing tool

TDEMthree-phase flowtracer measurementtubing thread

TEthree-phase separatortracer-ejector measurementtubing-conveyed perforating

TEAthreshold velocitytracer-loss measurementtubing-end locator

technical evaluation agreementthrough flowline (TFL)tracktubingless completion

tectonic environmentthrough tubing gunTrans-Alaska Pipeline Systemtubing-retrievable safety valve (TRSV)

tectonicsthrough-flowline (TFL)transform faulttubular jar

tectonismthrough-tubingtransgressiontubulars

telemetrythrough-tubing guntransgressivetuff

tell talethrust faulttransgressive surfacetuffaceaous

tell-taleTItransient drainage radiustuning effect

telluric currenttick marktransient electromagnetic methodturbidite

telluric current methodtietransient pressureturbidity current

telluric-current methodtie back linertransient rate and pressure test analysisturbulent flow

TEMtie back packertransient-pressure responseturnkey

temperature gradienttie linetransient-pressure testingTVD

temperature logtie-back linertransient-rate and pressure-test analysistwist off

temperature stabilitytie-back packertransit timetwist-off

temperature surveytie-back stringtransition flowtwo dimensional seismic data

ten minute gel strengthtighttransition zonetwo dimensional survey

ten second gel strengthtight emulsiontransmission tomographytwo pass method

ten-minute gel strengthtight gastranspressiontwo phase flow

ten-second gel strengthtight holetranstensiontwo phase separator

tensile strengthtight oiltransverse electric modetwo way traveltime

tension-set packerTIHtransverse isotropytwo-dimensional seismic data

tensor methodstime after bittransverse magnetic modetwo-dimensional survey

TEORtime domaintransverse relaxationtwo-pass method

term leasetime domain electromagnetic methodtraptwo-phase flow

ternary diagramtime lapsetrapped oiltwo-phase separator

terrain correctiontime lapse seismic datatravel jointtwo-way traveltime

terrestrialtime migrationtraveling blockTWT

tertiary recoverytime slicetraveling valvetype curve analysis

test separatortimed slug analysistravelling slipstype curves

tetrahedral layertime-domain electromagnetic methodtravelling snubberstype-curve analysis

Texas decktimed-slug analysis

UUCSunconfined compressive strengthundersaturated fluidunloading valve

Udden-Wentworth scaleunconformityundershootingunsteady state

ULCCunconformity trapundertravelunweighted mud

ultra heavy oilunconventional resourceundisturbed zoneupdip

ultrafineunder travelundrained testupgrader

ultralarge crude carrierunderbalanceuniaxial compressive strengthupset

ultra-long spaced electrical logunderbalanceduniformitarianismupstream

ultralow interfacial tensionunderground blowoutunitizationupstroke

ultrasonic caliperunderground gas storageunitized productionupward continuation

ultrasonic measurementunderpressureunits conversion factoruranium

uncertaintyunderpressuredUniversal Transverse Mercator grid (UTM)U-tube effect

uncertainty principleunderreamunload

VVAMAvelocity imagevertical severanceviscous fingering

VAPEXvelocity layeringvertical sweep efficiencyviscous force

vapor extractionvelocity mapvertical transverse isotropyviscous oil

vapor pressurevelocity shot measurementvery large crude carriervitrinite

vapor recovery unitvelocity stringvesiclevitrinite reflectance

vaporizing drivevelocity surveyvesicularVLCC

variable ratevelocity-correction factorvesicular porosityvolcanic

variable-density logvelocity-shot measurementVG metervolcano

varimax rotationverificationV-G metervolumetric cross section

variogramverification listingvibratorvolumetric displacement efficiency

varveversenatevibratory seismic datavolumetric efficiency

vee doorvertical displacement efficiencyvinyl acetate-maleic anhydride copolymervolumetric sweep efficiency

vee-doorvertical liftvinyl polymerVSP

velocityvertical resistivityvirgin pressureVTI

velocity analysisvertical resolutionvirgin zonevug

velocity anomalyvertical responsevisvuggy

velocity correctionvertical seismic profileviscosityvugular

velocity correction factorvertical separatorviscosity and gel-strength testvugular porosity

WWadati-Benioff zonewater formation volume factorweathered layerwet oil

WAGwater gunweatheringwet-clay porosity

wait on cementwater in oil emulsionweathering correctionwettability

wait timewater influxweevilwettability change

walk above vertical seismic profilewater lossweightwhole core

walk above VSPwater mudweight indicatorwhole mud dilution

walk-above vertical seismic profilewater mud emulsifierweight materialwhole-mud dilution

walk-above VSPwater oil ratioweighted mudWide-azimuth towed-streamer acquisition

walkaway vertical seismic profilewater productionweighting agentwiggle trace

walkaway VSPwater saturationweighting materialwildcat

wall cakewater to cement ratiowell cleanupwindow

wall losswater wetwell controlwing valve

wall stickingwater, oil and solids testwell flow rateWinsor phase behavior

Walsh-Hadamard transformwater/oil ratiowell interferencewiper plug

Walther's lawwater-alternating gaswell interference testingwiper trip

wash outwater-base drilling fluidwell logwire clamp

wash overwater-base mudwell placementwire wrapped screen

wash pipewater-bottom rollwell planwireline

washoutwater-cut meterwell potentialwireline cutter

washoverwaterdrivewell production ratewireline formation test

washover pipewater-filled resistivitywell servicingwireline formation tester

washover shoewaterfloodwell shootwireline grab

wastewater cleanupwaterflood kickwell stimulationwireline log

water alternating gaswaterfloodingwellborewireline retrievable safety valve (WRSV)

water base drilling fluidwater-flow logwellbore damagewireline-retrievable safety valve (WRSV)

water base mudwater-in-oil emulsionwellbore diagramwire-wrapped screen

water blockwater-mud emulsifierwellbore fill upWOC

water bottom rollwater-to-cement ratiowellbore fill-upWOR

water clarificationwater-wetwellbore orientationwork basket

water coningwavewellbore storage effectswork station

water controlwave equationwellbore-storage effectswork string

water cushionwaveformwellheadworking interest

water cutwavefrontwellhead backpressureworkover

water cut meterwavelengthwell-interference testingworkover fluid

water drivewaveletWentworth scaleworkover string

water filled resistivitywavelet extractionwet clay porosityworm

water floodwavenumberwet combustionwormhole

water flow logweak pointwet gaswrench fault

XX signalXC polymerX-ray diffractionX-signal

xanthan gumX-radiographyX-ray fluorescence (XRF)xylene

Yyieldyield stressYoung's modulusYP

yield pointYoung-Laplace equation

ZZ/A effectzero zero gelszinc basic carbonatezip collars

zero crossingzero-offset datazinc bromidezip groove

zero offset datazero-offset vertical seismic profilezinc carbonateZoeppritz equations

zero offset vertical seismic profilezero-phasezinc chloridezonal

zero phasezero-zero gelszinc oxidezone