扶余油田西区杨大城子油层沉积微相研究

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1、浙江大学理学院硕士学位论文扶余油田西区杨大城子油层沉积微相研究姓名：王艳申请学位级别：硕士专业：地质学指导教师：何光玉;马立文20090430⑨浙江大学硕士学位论文扶余油f日两区杨大城子油层沉积微相研究中文摘要松辽盆地扶余油田主要含油层系为白垩系泉头组第三段(杨大城子油层)和第四段(扶余油层)，其中扶余油层是主要开发层系，油藏描述和剩余油分布均已做过精细研究，而杨大城子油层受老井完钻井深较浅，杨大城子油层揭示不全，现有资料对未钻遇井区的油层发育情况认识不清，从未做过详细的油藏描述等研究工作。本次研究以层序地层学的理论

2、为依据，按照“旋回对比、分级控制”的原则，利用层拉平技术，层控对比技术，实现了杨大城子的储层划分与对比。通过对取心单井资料和测井相模式综合分析，确定了扶余油田西区杨大城子油层为曲流河沉积，发育边滩、中小型河道、废弃河道和溢岸薄层砂等微相，其中河道沉积呈条带状延南西～北东向展布，泛滥平原泥在剖面上十分发育，砂体基本被包裹其中。同时通过储层物性资料分析，结合沉积相特征，认为杨大城子油层非均质性强，平面非均质性受沉积相控制，层内和层间非均质性受控于隔夹层的发育和渗透率的差异。扶余西区未钻穿的杨大城子油层也很发育，可作为一个

3、有利的储量接替层。关键词：松辽盆地扶余油田沉积微相杨大城子油层曲流河④浙江大学硕士学位论文扶余油田两区杨人城子油层沉积微相研究英文摘要Themainoil-bearingseriesofFuyuOilfieldinSongliaoBasinarethe3rdsection(Yangdachengzioillayer)and4thsection(Fuyuoillayer)ofCretaceousQuantougroup．TheFuyuoillayeristhemainlayerseriesofdevelopmentwh

4、oseoilreservoirdescriptionanddistributionofremainingoilstudieshavebeendonewell．TheYangdachengzioillayer’SresearchisrestrictedbytheDeepEndoftheoilshallowwellsandtheexistingdatacan’tgiveusaclearunderstandingofthenon—drillingarea,SOthereisriopersonhaseverdoneadeta

5、iledreservoirdescriptioninthearea．PaperhavebeenachievedtheYangdachengzioillayer’Sreservoirdivisionandcorrelationonthebasisofsequencestratigraphytheory,inaccordancewiththe‘cycleofcomparison,hierarchicalcontrol’andinuseoftheleveledlayerandcontrastcontrollayertech

6、nology．WeknowthatthewesternareaoftheFuyuoilfieldismeanderingriversedimentarythroughthecoringdatainthesinglewellandcomprehensiveanalysisoflog-phasemodelwheredevelopedbeach,smallandmediumsizedrivers，wasteandoverflowtherivershore．Theriverdepositionisextendedinthen

7、ortheastdirectionlikeaband，thefloodplainmudisdevelopedinthesectionandthesandiswrappedinit．WeknowthattheYangdachengzioillayer’Sheterogeneityisstrong．Theplanarheterogeneityiscontrolledbythepermeabilityandtheheterogeneityinthelayerorbetweenthelayersarecontrolledby

8、theinterlayer’Sdevelopmentandthepermeability’Sdifferences．TheYangdachengzioillayerinthewestoftheFuyuoilfieldCanbeusedasafavorablesupersedurereserveslayer．Keywords：SongliaoBa