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CentriliftBasics AguidetoCentriliftESPSystems Centrilift TheSystem ConsistentlysettheindustrystandardAllthetechnologytoprovidethecompletesystemWiththesystemapproachtotechnology wearebetterabletocontrolthequalityandreliabilityofproductsandservices DownholeCentrifugalPump IssonamedbecauseheadaddedtofluidisduelargelytocentrifugaleffectsDownholepumpsarecharacterizedby SmalldiameterLargequantityofstagesHighdesignloads DownholeCentrifugalPump Isnormallydrivenbyatwo polesubmersiblemotorattypicaloperatingspeedsofapproximately3 600rpm DownholeCentrifugalPump MaybedrivenatotherspeedseitherduetopowersourceorintentionallytomodifyperformanceFlow rpm frequency Head rpm2 frequency2 Power rpm3 frequency3 PumpStage Worksbytransferringenergyprovidedbydrivertofluidtobemoved GasHandling GasSeparation UsedinapplicationswherefreegascausesinterferencewithpumpperformanceSeparatesomeoffreegasfromfluidstreamenteringpumptoimprovepump sperformanceGasseparatormethodsinclude WellboreshroudingReverseflowintakesCentrifugeseparators SpeciallydesignedrotatingchamberactsasacentrifugeForcesheavierfluidtooutsideandallowsfreegastomigratetocenterofchamberTwostreamsarephysicallyseparatedattopLiquidrichstreamisportedinternallytopumpinletGasrichstreamisventedtocasingannulus RotaryGasSeparator SealSection IslocatedbetweenpumpandmotorMainfunctionistoprotectmotor SealSection ProtectsmotorfromcontaminationbywellfluidAbsorbsthrustfrompumpEqualizespressurebetweenwellboreandmotor SealSection Equalizespressureandpreventswellfluidfromenteringmotorbyusing MechanicalsealsAbladdersystemAlabyrinthsystem SubmersibleMotor IsoilfilledIsatwo pole three phase 3600RPMdesignMotorcomponentsdesignedtowithstand500oFtemperatures SubmersibleMotor Motorcoolingisachievedby InternaloilcirculationFlowofwellfluidalongoutsideskin VariableSpeedDrive SimpletooperateMultiplefunctionsMostwidelyusedforoilfieldapplicationAvailableinNemaIorIIIEnclosures Pumpfailuresinabrasiveenvironmentsarecausedby 1 Excessiveradialbearingwearespeciallycriticalintopandbottomofpumpwhereresultingvibrationistransferredtothemechanicalsealsorbetweencoupledunitslossofradialsupportthroughoutpumpresultsinvibrationandoperationalinstability2 Excessivestagedownthrustwearcancutthroughimpellershroud causinghydraulicperformancedegradationandcanblockflowpassagewayslabandfielddatademonstratesthisfailuremodeisaclosesecondtoradialbearingfailure3 Erosivewearinflowpassagewayshydraulicperformanceslowlydegradesovertimelongertermfailuremodethandownthrustandradialbearingfailuregenerallyonlyobservedinhighlyabrasiveenvironments PumpAbrasiveWear ARMPumpLine ARCoatedStages Centriliftalsouse Pumpguard coating polymer onstagestoimprovestagewearcharacteristicsandincreaserunlifeA PumpguardI coatingwouldtypicallybeusedwithabrasives inconjunctionwithARbearings A PumpguardII coatingwouldbeusedforapplicationswithscaleandasphalteneproblemsandwouldnotnecessarilyrequireARbearingsCentriliftarealsotestingnewcoatingsforcontinualimprovement ESP ESPCP ESPCPSystem ThroughTubingConveyedDeploymentSequence TheESPCP ReducesCustomerCost ReducedpowerrequirementsoverESP especiallywithheavy viscosefluidNoemulsioncreation aswithESP JetPumpThroughTubingConveyedESPCPreducesworkovercostsMaximizesrunlifeofPermanentdownholeequipmentAllowsBackFlushCapabilitiesbyReversingMotor Electrocoilsystems MarkII BCoiledtubingdeployedESPPowercableinsidetheCTAnnular LinerproductionInvertedESPconfiguration MarkII BSystem InvertedESP DownholeOil WaterSeparation SubSep Separatesoil waterdownholeProducesoilrichstreamtosurfaceInjectsvastmajorityofproducedwater 85 95 intoadisposalzoneOilcarryoverof500ppmorless SubSepEconomicDrivers DOWSeconomicsbasedonabilitytoaccelerateandmaximizeproductionfromagivenwell fieldGenerally acceleratedoilproductionprovidesprimaryincentiveWaterhandlingcostdefinitionisimportantGenerally reductioninOpex waterhandlingandliftingexpensesissecondaryincentive Down holeWaterSinkIntroduction AnewcompletionmethodologytomitigatewaterconingConventionally operatorsperforatehighintheoilcolumntostayawayfromwaterDWScompletionsrelyonadditionalproductionperforations inthewatercolumn tocreateanoffsettingpressuredroptosuppressconing DownHoleWaterSink DWSCompletionforIn situRe injection HPumpProductRangeDecksaverPlus Verticallymounted surfacepumpingsystemforuseinlimitedspaceenvironments Twopump orfourpumpintegrateddesign SingleDecksaversystemusing40squarefeet canreplace
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