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ID:32503847
大小:1.98 MB
页数:125页
时间:2019-02-09
《【7A文】注水(Water Injection).ppt》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、采油工程OilProductionEngineeringChap.5WaterFloodingIntroductiononOilProductionProductionPhaseOncepetroleumfound&welldrilledoperationenters“productionphase”Afteroilandgasfound,appraisaldrillingneedtobedonetocheckforcommercialviabilityImportanttotestformationtoen
2、sureprofitanddetermineproperrateofextractionNewwellbeginsproduction,apotentialtestisrun–determinemostoilandgastobeproducedina24hrperiodMostefficientrecovery(MER)rate–basedonmostoilandgascanbeextractedforasustainedperiodoftimewithoutharmingformationSomewellu
3、nderenoughpressure–donotneedpumpingsystem.OnlyinstallChristmastreeoraseriesofvalvesandpipesatthesurfacetoproduceoilandgasIntroductiononoilProductionProductionPhaseMostwellrequiresomekindofliftingmethoddependingondepthofwellandwhetherthewellhasmultiplecomple
4、tionMostcommonmethodisrodpumpingWhenoilandgasreachsurfacetheyareseparatedGasissenttoprocessingplantSedimentandwaterfromoilisremoved;thenoilistransportedtorefineryIntroductiononoilProductionFieldProductionPrimaryRecovery(NaturalMethods)1stmethodofproducingoi
5、lfromawellSolutiongasdrivepressureinsidereservoirrelievedwhenwellpuncturesandgastrappedinoilformsbubblesBubblesgrow,exertpressurepushoiltowellanduptosurface(20-30%)GascapdriveIfcontaingascap,drillwelldirectlyintooillayer–gascapexpandExpandinggaspushesoilint
6、owell(40%)WaterdrivescenarioWaterlayerpressagainstoillayerWaterpushesoiltowardssurfaceandreplaceitwithintheporesofthereservoirrockHighestrecovery:upto75%IntroductiononoilProductionFieldProductionSecondaryRecoveryUsedtoenhanceorreplaceprimarytechniquesWaterf
7、loodingAdditionalinjectionwellisdrilledintothereservoirPressurewaterinjectedWaterdisplacestheoilinreservoirMechanicalLiftReciprocatingorplungerpumpingcalled“horsehead”Pumpbarrelloweredintowellonstringsteelrod(suckerrods)UpanddownmovementforceoiluptotubingIn
8、troductiononoilProductionFieldProductionTertiaryRecoveryWhen2ndrecoverynolongereffectiveThermalProcessSteamFlooding–steaminjected,heatsoiltoflowreadilyin-situcombustion(fireflooding)–airinjected,aporti
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