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1、第15卷第1期地学前缘(中国地质大学(北京);北京大学)Vol.15No.12008年1月EarthScienceFrontiers(ChinaUniversityofGeosciences,Beijing;PekingUniversity)Jan.2008利用鄂尔多斯盆地镇泾油田沉积微相展布与演化规律分析油田开发调整方向12122李胜利,赵舒,付菊,秦秉操,柳林旺11中国地质大学(北京)能源学院,北京10008321中国石化华北分公司勘探开发研究院,河南郑州45000612122LiShengli,ZhaoShu,FuJu,QinBingcao,L
2、iuLinwang11SchoolofEnergyResources,ChinaUniversityofGeosciences(Beijing),Beijing100083,China21ExplorationandDevelopmentResearchInstitute,HuabeiBranchCompanyofSINOPEC,Zhengzhou450006,ChinaLiShengli,ZhaoShu,FuJu,etal1Adoptingthedistributionandevolutionlawsofdepositionalmicrofacie
3、sinanalyzingthedirec-tionsofoilfielddevelopmentintheZhenjingoilfield,Ordosbasin.EarthScienceFrontiers,2008,15(1):085-093Abstract:Thedistributionandevolutionlawsofdepositionalmicrofaciesinoilfieldsdominatethedistributionofmainfavorablereservoirs,therefore,thedirectionofoilfieldd
4、evelopmentcouldbeconsideredaccordingtotheselaws.TheZhenjingoilfieldislocatedatthesouthwesternpartoftheDrdosbasin.ThesixthintervaloftheYanchangformationbelongstobraideddeltafrontdepositionundertheconditionoflacustrineshore,andthemajordepositionalmicrofaciesincludesubaqueousdistr
5、ibutarychannel,mouthbar,distalbar,sandsheet,subaqueousinterdistributarybayandprodeltamud.Thedistributionofdeltawasdominatedbytwomainriverbeltswhicharenearlyparalleledeachotherfromsouthwesttonortheastasawhole.Meanwhile,controlledbythebaselevelrisingandfalling,andthesedimentsuppl
6、y,theevolutionofdeltahadexperiencedfourperiodsincludinginitialformingstage,highlydevelopingstage,intermittentstageandrevivingstage.Therefore,thosesandbodies,suchassubaqueousdistributarychannels,mouthbarsintheperiodsofhighlydevelopingstageandrevivingstage,werethemainreservoirsbe
7、aringoilandgas.Thebraideddeltadistributionandevo-lutionfeaturessuggestthatthetwosidesofthesouthwestmainriverbeltsandtheoutsidepartofthenortheastdeltafrontwouldbethemainareasforoilfielddevelopmentinthefuture;meanwhile,intheverticaldirection,onefundamentalfactorshouldbeconsidered
8、first,i.e.,thethicknessofsandbodiesinthehighlydevelopi
