8-2 MVP_CUSTOMER

WhyMVP?1.Manyfields,botholdandnew,arehighgasproducersduetothepresenceoflargegascapsorgasinsolution.WhyMVP?2.Newmethodsforoilrecovery,suchasWAG(InjectingWaterandGas)providetheopportunitytohandleunprecedentedamountsoffreegas.WhyIsGasaProblem?•Gasincreasesthevolumeoffluidthatthepumpmustingest.•Gasdecreasesthebulkdensityofthefluid.•Gascausesflowanomaliesintheimpeller.WhatCanWeDoAboutGas?•AvoidIt•SeparateIt•HandleItESPCAPABILITIESINGASSYCRUDE%GASTOFLUIDRATIO(GFR)RadialImpellerPump8-22%GFRatInletMixedFlowImpellerPump8-40%GFRatInletStandardTaperedPump8-40%GFRatInletGasMasterPumpUpto50%GFRatInletPumpwithSeparator8-80+%GFRatInletTaperedPumpwithSeparator8-85+%GFRatInletPumpwithTandemSeparator8-90+%GFRatInlet020406080100ESPCapabilitiesinGassyCrudeHandlingGas•WithinformationregardingPumpIntakePressure(PIP)andbyreferringtothiscurve,itmaybepossibletohandlelargeramountsoffreegaswithastandardpump.•Thecurve,however,shouldbeinterpretedasa“greyzone”andnotasanabsolutelimitdemarcation.GasLocking-StandardStage•Gasaccumulates,startingfromtheeyeoftheimpeller,inthelowpressureareasofthevaneopening.RotationGasLocking-StandardStage•Gashascompletelyfilledtheareaoftheeye,(aidedbycentrifugalforce),andtheimpellermaynolongerbeabletobuildenoughpressuretodisplacethefluid.•Thepumpiseffectivelylocked.RotationSteepVaneExitAngleSplit-VaneDesignOversizedBalanceHolesRotationMVPStageDesignMVP•MVPisthenameforalineofstages,notonesinglesize.•Thisnewlineofstageswillaugmentexistinggashandlingtechnology,suchastheNPSHstages,withthefollowingadvantages:MVPAdvantages•Bettergashandling.•Betterliftcharacteristics.•Betterefficiency.•Improvedprofitabilitythroughincreasedproduction.Value:IncreasedProduction•BetterGasHandlingCharacteristicsWellcanbedrawndownfurtherwithoutgaslockingthepumpIncreasedproductionBetteroil(andgas)recoveryfromthereservoirValue:LongerRunLife•MVPcanreplaceaGasSeparatorinmanyapplications.Inabrasiveapplications,GasSeparatorsaremoresensitivetoabrasiondamage.Value:LowerHorsepower•Increasedgasingestionlowersweightofcolumninthetubingstring,leadingtolowerHPrequirement.Value:ExtendedApplications•Incombinationwitharotarygasseparator,MVPwillextenduseofESP’sinwellswithhigherproductionoffreegas.•MVPincreasesopportunitiestouseESP’sininstallationsbelowpackerswhichdonotallowforventinggastothesurface.LabTesting•AlltestswereperformedinCentrilift’snewHighPressureGasLooptestingFacilityinClaremore.•Thenewfacilityallowsforquickserializedtests,thusguaranteeingthatalargenumberofdatapointsareobtainedinashortperiodoftime.ComparativePerformance30%FreeGas,200psi50010001500200025003000350040004500TOTALCAPACITY(BPD)051015HEADINFEETNewGHDesignCurrentFCNPSHRedaAGH02/14/02050010001500200025003000350040004500WATERONLYBPD05101520HEADINFEET30%Nitrogen400G12400G22400G42FCNPSHREDAAGHGAS/WATERTEST1STAGE@3500RPMPRESSURELOOP200PSI02/04/03ComparativePerformance–AllMVP30%FreeGas,200psiFieldTest•MVPhasbeenevaluatedinthefield.A400G22,43stagepumpwasinstalledinagassywellintheRockiesonSeptember16,2002.FieldTest•TestsbeforeMVPwasinstalled:Aver.*:18BOPD,1360BWPD,297.2MCFPD•MVPInstalled9-16-2002:Aver.*:36BOPD,2103BWPD,580.7MCFPD(*)Welltestsoverperiodof1monthSizingMVP•AutographsupportsMVPstages.ThetypicalsizingwillbeusingMVPasachargepump,thesamewayasNPSHstagesaredone.•ThefollowingexampleshowsataperedpumpwiththeMVPasa34-stagechargepump.•PumpsareselectedaspertheTaperedPumpmethod,usingMVPasachargerpump.SizingMVP