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缓膨颗粒对塔河油田缝洞型油藏的调堵机理分析 Title:MechanismAnalysisofPluggingofFracturedReservoirsintheTaheOilfieldbyDelayedSwellingParticles Abstract: Thepresenceoffracturesinoilreservoirscansignificantlyimpacttheflowbehaviorandproductionofhydrocarbons.ThispaperaimstoanalyzethemechanismofpluggingfracturedreservoirsintheTaheOilfieldusingdelayedswellingparticles.Understandingthismechanismcanprovideinsightsintoeffectivetechniquestoimproveoilrecoveryinfracturedreservoirs.Thisstudyutilizesexperimentaldata,numericalsimulations,andtheoreticalanalysistoinvestigatethepluggingeffectofdelayedswellingparticlesonfracturedreservoirs.Theresultsshowthatdelayedswellingparticlescanbeapromisingagentfordivertingflowandpluggingfractures,leadingtoenhancedoilrecoveryintheTaheOilfield. 1.Introduction 1.1Background 1.2Objectives 1.3Organizationofthepaper 2.LiteratureReview 2.1FracturedReservoirs 2.2ChallengesinProductionfromFracturedReservoirs 2.3PluggingTechniques 2.4DelayedSwellingParticles 3.ExperimentalAnalysis 3.1SamplePreparation 3.2ParticleSwellingBehavior 3.3ParticleFlowDivergingEffect 3.4EvaluationofPluggingEfficiency 3.5DiscussionofExperimentalResults 4.NumericalSimulation 4.1FlowSimulationModelConstruction 4.2ModelValidation 4.3EffectsofDelayedSwellingParticlesonFlowBehavior 4.4PluggingEfficiencyandOilRecoveryEnhancement 4.5SensitivityAnalysis 5.TheoreticalAnalysis 5.1FlowDiversionMechanism 5.2ParticleSwellingMechanism 5.3ParticleTransportMechanism 5.4ModelDevelopmentforPluggingEfficiencyPrediction 5.5AnalyticalInsights 6.ApplicationinTaheOilfield 6.1ReservoirCharacterization 6.2DeterminationofOptimalParticleSizeandConcentration 6.3FieldImplementationandMonitoring 6.4ProductionPerformanceEvaluation 7.Conclusion 7.1SummaryofFindings 7.2ImplicationsforEnhancedOilRecoveryinFracturedReservoirs 7.3FutureResearchRecommendations References Inthispaper,themechanismanalysisofpluggingfracturedreservoirsintheTaheOilfieldusingdelayedswellingparticleswasconductedbasedonexperimentalanalysis,numericalsimulation,and