废弃油藏改建储油库机理及注采特征研究

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中图分类号：TE822 文献标志码：A 文章编号：1000-7393（2025）-04-0481-08

Abstract：Intelatestageofoilevelopmentasignificantumberofepletedreservoirsapproachtoeexhusted.Theseseois notonlyoccupysubsurface space but also pose safety and environmental risks.Inspiredbythe modelof gas storage facilities， convertingsucheservoirsintooilstoragefacilitiesoffersdualbenefitsofenancingesourceutilzationandmitigatigenvioental hazards.However，substantialdiferences existintheinjection-production mechanismsanddynamic featuresbetweenoilandgas storagefacilitsithiedssematicseachoductedomsticalleatallyissdytematicallyiatse feasibilityandkeyjectio-prodctioncharactersticsofonvetigsuhthe tpicaldepetedsevisasaterflooeddtoe reservoirs，frcturedid-hllevis，adilseis（ostevelopntintoilstagefacilitis，ogilwater mutual displacementseepagesimulation experimentsand 3Dphysical simulation experiments.Te findings demonstrate that multi-cycleoil-watermutual displacementleadtosystematicdownwardshiftinoil-waterreltivepermeabilitycurvesofwaterfloodedanstoeadfracedurid-illrseirs，ouusisipntetiepemeabilitydgdaldtio injection-procitellsgiesllibteaioco percolationrangeandreduces efectiveporeutilzation.Duringoilinjectionresidualoilandireduciblewaterretentionnpores causes declining injection-production volumes，yet the oil recovery efficiency remains above 90% ，withhigher permeability correlatingtosupriorrecoveyeciecy.ortickmasseavyilseirs，dimesioalpsicalsiulatiosepets of post-AGD injection-productionconfirmed stableoil productionaftertwocycles，achieving arecovery efficiencyexceeding 84% therebyvalidatingthetechicalfeasiblityofconvertinghigh-poosityig-pemeabilityheayoileservoirsintooilstoage facilties.Thisresearchestablishesateoreticalfoundatioforsiteselectionand prameterdesigniconvetingdepletedreseis into oil storage facilities.

KeyWords：depletedreservoir;oilstoragefacilityinjection-productioncharacteristics;ol-waterreltivepermeability；recovey efficiency; seepage simulation; physical simulation

0 引言

国外地下储油库起步于20世纪30年代，以水封洞库、盐穴库建库为主，枯竭油藏建库为辅[1-6]，国外已成规模的地下储油库有：美国战略石油储备（SPR）盐穴储油库、挪威北海盐穴储油库、加拿大纽芬兰白玫瑰油田储油库、英国洛斯托夫特储油库、沙特阿拉伯阿美石油公司储油库。（剩余12095字）