Orinoco泡沫油的油气相对渗透率测试方法-豆柴文库

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Orinoco泡沫油的油气相对渗透率测试方法
Title:ExperimentalMethodsforDeterminingtheRelativePermeabilityofOrinocoFoamyOil
Abstract:
TheOrinocoBeltinVenezuelacontainsvastreservesofheavycrudeoil,characterizedbytheiruniquefoamynature.Thestudyoftheoil-gasrelativepermeabilityinOrinocofoamyoilreservoirsiscrucialforeffectiveproductionandfielddevelopmentstrategies.Thispaperaimstoexploreanddiscussvariousexperimentalmethodsusedfortestingtheoil-gasrelativepermeabilityofOrinocofoamyoil.
1.Introduction:
TheOrinocoBeltisamajorhydrocarbonprovincelocatedineasternVenezuela,knownforitsabundantdepositsofheavycrudeoil.InmanyareasoftheBelt,theoilreservoirsarecharacterizedbyfoamyoilbehavior,whichposeschallengesintermsofproductionandreservesestimation.Accuratemeasurementsofoil-gasrelativepermeabilityareessentialforunderstandingfluidflowcharacteristicsanddesigningefficientreservoirmanagementplans.
2.FoamyOilFormation:
FoamyoilisgeneratedinOrinocoreservoirsduetothemixingofoil,gas,andwater.Gasinjectionorsteamstimulationprocessescausethedissolutionofgasintotheheavycrudeoil,leadingtotheformationofstablefoam.Theexistenceofoilandgasphasesinfoamyoilreservoirsinfluencestherelativepermeabilitybehaviorofeachphase.
3.SignificanceofRelativePermeability:
Relativepermeabilityisafundamentalparameterthatquantifiesthemobilityoffluidsinporousmedia.Inmultiphaseflowscenarioslikefoamyoilreservoirs,therelativepermeabilityofeachphaseiscrucialforanalyzingthedisplacementefficiency,understandingtherecoverymechanism,andoptimizingproductionstrategies.
4.ExperimentalMethodsforDeterminingRelativePermeability:
Severalexperimentaltechniqueshavebeendevelopedtomeasuretheoil-gasrelativepermeabilityinOrinocofoamyoil.Themostcommonmethodsinclude:
4.1CoreFloodingExperiments:
Inthismethod,representativerockcoresextractedfromOrinocofoamyoilreservoirsaresubjectedtocontrolledinjectionofoilandgasphasesatdifferentflowrates.Pressuredifferentialsandflowratesacrossthecorearemonitoredtodeterminetherelativepermeabilityofeachphase.Specialattentionmustbegiven