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定边油田XAB油区延9油藏地质及开发特征分析.docx

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定边油田XAB油区延9油藏地质及开发特征分析 Title:GeologicalandDevelopmentCharacteristicsAnalysisoftheXABOilReservoirintheDingbianOilfield Abstract: TheXABOilReservoirisasignificantoil-bearingzonelocatedintheDingbianOilfield,knownforitscomplexgeologicalfeaturesanduniquedevelopmentcharacteristics.ThisstudyaimstoanalyzethegeologicalanddevelopmentcharacteristicsoftheXABOilReservoir,providingvaluableinsightsintoitspotentialandoptimizingthedevelopmentstrategies. I.Introduction TheDingbianOilfield,locatedintheOrdosBasin,isoneofthelargestoilfieldsinChina.TheXABOilReservoirhasdrawnconsiderableattentionduetoitsimmensehydrocarbonpotentialandchallengingexplorationanddevelopmentconditions.ThispaperaimstoanalyzethegeologyanddevelopmentfeaturesoftheXABOilReservoir,enhancingtheunderstandingofitsformation,distribution,anddeploymentpotential. II.GeologicalCharacteristics TheXABOilReservoirisprimarilycomposedoftightsandstoneandcarbonaterockformations,whichposechallengesforextractionduetolowporosityandpermeability.Thereservoirischaracterizedbycomplexfaultstructures,varioustypesoftraps,andsignificantheterogeneity.Thelithology,sedimentaryfacies,anddiagenesisprocessesgreatlyinfluencethereservoirproperties,makingathoroughstudynecessaryforsuccessfuldevelopment. III.ReservoirProperties ThemainreservoirpropertiesoftheXABOilReservoirincludereservoirthickness,porosity,permeability,saturation,andoilcomposition.Theaveragethicknessrangesfrom10to35meters,withsignificantvariation.Theporosityandpermeabilityaregenerallylow,oftenrequiringenhancedoilrecoverytechniquestoincreaseoilproduction.Reservoirsaturationanalysisrevealsthepresenceofbothmovableandimmovableoil.Detailedcharacterizationofoilcompositionandpropertiesiscrucialforoptimalproductionefficiency. IV.OilfieldDistribution TheXABOilReservoirisdistributedintheX,A,andBblocksoftheDingbianOilfield.Eachblockhasitsuniquegeologicalanddevelopmentcharacteristics.Theoilreservoirsexhibitdifferentdegreesoffaulting,lithology,andreservoirheterogeneity,leadingtodifferencesinproduct