深锤电潜泵基础知识(英文)PPT资料.ppt
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CentriliftBasicsAguidetoCentriliftESPSystemsCentrilift,TheSystemConsistentlysettheindustrystandardAllthetechnologytoprovidethecompletesystemWiththesystemapproachtotechnology,wearebetterabletocontrolthequalityandreliabilityofproductsandservicesDownholeCentrifugalPumpIssonamedbecauseheadaddedtofluidisduelargelytocentrifugaleffectsDownholepumpsarecharacterizedby:
@#@SmalldiameterLargequantityofstagesHighdesignloadsDownholeCentrifugalPumpIsnormallydrivenbyatwo-polesubmersiblemotorattypicaloperatingspeedsofapproximately3,600rpmDownholeCentrifugalPumpMaybedrivenatotherspeedseitherduetopowersourceorintentionallytomodifyperformanceFlow=(rpm)=(frequency)Head=(rpm2)=(frequency2)Power=(rpm3)=(frequency3)PumpStageWorksbytransferringenergyprovidedbydrivertofluidtobemovedGasHandlingGasSeparationUsedinapplicationswherefreegascausesinterferencewithpumpperformanceSeparatesomeoffreegasfromfluidstreamenteringpumptoimprovepumpsperformanceGasseparatormethodsinclude:
@#@WellboreshroudingReverseflowintakesCentrifugeseparatorsSpeciallydesignedrotatingchamberactsasacentrifugeForcesheavierfluidtooutsideandallowsfreegastomigratetocenterofchamberTwostreamsarephysicallyseparatedattopLiquidrichstreamisportedinternallytopumpinletGasrichstreamisventedtocasingannulusRotaryGasSeparatorSealSectionIslocatedbetweenpumpandmotorMainfunctionistoprotectmotorSealSectionProtectsmotorfromcontaminationbywellfluidAbsorbsthrustfrompumpEqualizespressurebetweenwellboreandmotorSealSectionEqualizespressureandpreventswellfluidfromenteringmotorbyusing:
@#@MechanicalsealsAbladdersystemAlabyrinthsystemSubmersibleMotorIsoilfilledIsatwo-pole,three-phase,3600RPMdesignMotorcomponentsdesignedtowithstand500oFtemperaturesSubmersibleMotorMotorcoolingisachievedby:
@#@InternaloilcirculationFlowofwellfluidalongoutsideskinVariableSpeedDriveSimpletooperateMultiplefunctionsMostwidelyusedforoilfieldapplicationAvailableinNemaIorIIIEnclosuresPumpfailuresinabrasiveenvironmentsarecausedby:
@#@1.Excessiveradialbearingwearespeciallycriticalintopandbottomofpumpwhereresultingvibrationistransferredtothemechanicalsealsorbetweencoupledunitslossofradialsupportthroughoutpumpresultsinvibrationandoperationalinstability2.Excessivestagedownthrustwearcancutthroughimpellershroud,causinghydraulicperformancedegradationandcanblockflowpassagewayslabandfielddatademonstratesthisfailuremodeisaclosesecondtoradialbearingfailure3.ErosivewearinflowpassagewayshydraulicperformanceslowlydegradesovertimelongertermfailuremodethandownthrustandradialbearingfailuregenerallyonlyobservedinhighlyabrasiveenvironmentsPumpAbrasiveWearARMPumpLine11ModuleconsistsofstandardstageslocatedinintermediatepositionsaboveanARstage.ThrustistransferredtotheARinsertsetthroughadjacentimpellerhubswithinthemodule.Patenteddesignprovidesenhanceddownthrustandradialsupportwearprotectionineverymodule2233Apremiumpumplineformildtoaggressivewellconditionsthatgivesenhancedradialandthrustwearprotection.ARCoatedStagesCentriliftalsouse“Pumpguard”coating(polymer)onstagestoimprovestagewearcharacteristicsandincreaserunlifeA“PumpguardI”coatingwouldtypicallybeusedwithabrasives,inconjunctionwithARbearings.A“PumpguardII”coatingwouldbeusedforapplicationswithscaleandasphalteneproblemsandwouldnotnecessarilyrequireARbearingsCentriliftarealsotestingnewcoatingsforcontinualimprovementCentriliftMotorCentriliftSealCentriliftCableESPESPCPGearreducerFlexshaftassemblyESPPumpPCPumpESPCPSystemThroughTubingConveyedDeploymentSequenceMotorGearReducerSealTubingCrossoverTubingCableLocatorFlexshaftPCPumpCentralizerPackoffAnchorTheESPCP“ReducesCustomerCost”ReducedpowerrequirementsoverESP,especiallywithheavy,viscosefluidNoemulsioncreation,aswithESP&@#@JetPumpThroughTubingConveyedESPCPreducesworkovercostsMaximizesrunlifeofPermanentdownholeequipmentAllowsBackFlushCapabilitiesbyReversingMotorElectrocoilsystemsMarkII-BCoiledtubingdeployedESPPowercableinsidetheCTAnnular/LinerproductionInvertedESPconfigurationMarkII-BSystem(InvertedESP)ElectroCoil,CTw/InternalPowerCableShearSubElectricalPenetratorAdaptor,HighPressureThrust/SealingAdapterPumpSealSectionMotorIntakeStinger,PerforatedPackerw/HydraulicControlledSSSVCasing/LinerProductionPerforationsPump,DischargeSolidsSkirtDownholeOil/WaterSeparation“SubSep”Separatesoil/waterdownholeProducesoilrichstreamtosurfaceInjectsvastmajorityofproducedwater(85-95%)intoadisposalzoneOilcarryoverof500ppmorlessHydrocycloneTubeInjectedWaterSealProd.ZoneInj.ZoneSepPMPSubSepEconomicDriversDOWSeco