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基于井间连通性的油藏注采调整优化方法.docx

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基于井间连通性的油藏注采调整优化方法 Title:OptimizationMethodforReservoirInjectionandProductionAdjustmentBasedonInter-wellConnectivity Abstract: Theefficientmanagementofoilreservoirsplaysacrucialroleinoptimizingoilrecoveryandincreasingproductionrates.Thispaperfocusesonoptimizingreservoirinjectionandproductionadjustmentsthroughtheutilizationofinter-wellconnectivityinformation.Byconsideringinter-wellconnectivity,wecanbetterunderstandtheflowpatternswithinthereservoirandeffectivelycontroltheallocationoffluidstoeachwell.Thisoptimizationmethodaimstoenhanceoilrecoveryandincreasetheoveralleconomicbenefitsofthereservoir. 1.Introduction Oilreservoirmanagementinvolvesthemanipulationofvariousoperationalparameters,suchasinjectionrates,productionrates,andwellplacement,toobtainthemaximumoilrecoveryandeconomicbenefits.Traditionalreservoirmanagementmethodsoftenfocusonindividualwellswithoutconsideringtheinterconnectivitybetweenthem,whichcanleadtosuboptimalproductionstrategies.Inrecentyears,therehasbeenagrowingrecognitionofthesignificanceofinter-wellconnectivityinreservoirmanagement.Thispaperproposesanoptimizationmethodthatincorporatesinter-wellconnectivitytoimproveinjectionandproductionadjustments. 2.Inter-wellConnectivityAnalysis Inter-wellconnectivityanalysisinvolvestheidentificationandcharacterizationoftheconnectivitypatternsbetweenwells.Thiscanbeaccomplishedthroughtheanalysisofpressuretransientdata,tracertests,productionhistorymatching,andreservoirsimulation.Varioustechniques,suchasgeostatisticalanalysisanddata-drivenapproaches,canbeemployedtoextractvaluableinformationfromthesedatasources.Byquantifyingtheconnectivitybetweenwells,anetworkrepresentationcanbeconstructed,enablingtheidentificationofpreferentialflowpathsandbottleneckswithinthereservoir. 3.OptimizationFramework Theoptimizationframeworkcombinesreservoirsimulationandoptimizationalgorithmstodeterminetheoptimalinjectionandproductionratesforeachwell,consideringtheinter-wellconnectivity.Theobjectivefunctionoftheoptimizationproblemcanbedefineda