裂縫性底水稠油油藏水平井AICD控水技術(shù)研究

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Mechanism and Applicability of AICD Water Control in Fractured Bottom WaterHeavy OilReservoir

YANG Yong*，SUNChangwei， JIANGRenkai，LIXiaodong，LIU Yuanzhi

CNOOC China Limited， Shenzhen Branch， Shenzhen，Guangdong 518ooo，China

Abstract：Fracturedbottomwaterheavyoilreservoiristhecharacteristicofmicro-fracturedevelopment，highviscosityofcrude oilandrapidriseofwatercut.ItisdificulttoensurethedevelopmenteffctbyconventionalhorzontalwelldevelopmentThe developmentof suchreservoirwith strong botom watercontrolabilitybyhorizontal wellisalways themain directionof development.NanhaiLReservoir isatypicalreservoirofthis type.And has beenput into production formore than 20a with recovery less than 12% ，and comprehensive water cut more than 96% .The results of chemical water plugging and conventional ICD watercontrolare por.The developmentofhighangle fracturesis themainreason fortherapidriseofoilfield bottom waterandpoordevelopmentefect.Atthesametime，therudeoilinthereservoirmatrixisdiiculttobeeffectivelyused，nd alargenumberofremainingoilstillexists inthe matrixand isolated karstcaves.Weanalyze themechanismofAICDwater control，studiesitspplicabilityinombinationithsicalodel，numricalmodelandfeldapplication，andocdethat AICDtechnologycanimprovetheproductionofefectiveproductionintervalsofhorzontalwellsinthis kindofreservoi，and thus improvethedevelopmenteffct.Accordingtotheevaluationofwellselection，AICDismechansmofcontrolligwater andincreasingoilproductionbycontrolingtheflowofmicrofractureandhighpermeabilityzone independently，balancing theliquidsupplyprofileofhorzontalwell，improving thesweepeficiencyofhorzontalwelland increasingteeectivewell control reserves.

Keywords：fracture;bottom water;heavy oil;AICD water control; water control and improve oil 網(wǎng)絡(luò)出版地址：http：//link.cnki.net/urlid/51.1718.TE.20250328.1514.006

楊勇，孫常偉，江任開，等.裂縫性底水稠油油藏水平井AICD控水技術(shù)研究[J].西南石油大學(xué)學(xué)報（自然科學(xué)版），2025，47（2）：105-114.

YANGYngSUhangeiJANGenkaietalMechaismandAplcablityofCDWaterControlinFracturedBotoWaterHeayOilReservoir[J].Journalof SouthwestPetroleum University（Science&TechnologyEdition），2025，47（2）：105-114.

引言

L油藏位于南海珠江口盆地，為生物礁灘裂縫性底水稠油油藏，內(nèi)部斷層、微裂縫（溶洞）發(fā)育，是在基巖隆起上發(fā)育起來的生物礁灘一背斜構(gòu)造，構(gòu)造主體相對平緩，整體呈西高東低的趨勢[1-2]。（剩余15271字）