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1、石油勘探与开发1362009年4月PETROLEUMEXPLORATIONANDDEVELOPMENTVol.36No.2文章编号:100020747(2009)0220136208潜山油气藏勘探理论与实践———以辽河坳陷为例1111211孟卫工,陈振岩,李湃,郭彦民,高先志,回雪峰,张亚丽(1.中国石油辽河油田公司;2.中国石油大学(北京))基金项目:国家重点基础研究发展规划(973)项目(2009CB21930X)摘要:近年来,辽河坳陷潜山油气藏勘探不断取得重大突破,实现了由寻找成藏条件相对明显的高、中潜山向寻找埋藏更深、更隐蔽、更复杂的低潜山和潜山内
2、幕油气藏的勘探转变。从基底构造活动、潜山类型、岩性及储集层特征、生烃系统、输导体系等多角度探讨了低潜山和潜山内幕油气成藏条件;同时,充分考虑潜山内幕油气藏的特点,紧密结合勘探实践,从潜山与油气的关系入手重新建立潜山内幕油藏实用分类方法,大大拓宽了潜山找油领域,形成了具有低幅度、多期裂缝、多油源充注特点的潜山内幕目标成藏模式。通过对辽河坳陷低潜山及潜山内幕油气成藏理论的研究与勘探实践,2001—2006年,低潜山88和潜山内幕累计上报三级储量分别达2.54×10t和1.76×10t,为辽河油田增储稳产作出了重大贡献。图7表1参22关键词:辽河坳陷;潜山油藏;
3、成藏模式;低潜山;潜山内幕;多期裂缝;生烃系统;输导体系中图分类号:TE122.1文献标识码:AExplorationtheoriesandpracticesofburied2hillreservoirs:AcasefromLiaoheDepressions1111211MengWeigong,ChenZhenyan,LiPai,GuoYanmin,GaoXianzhi,HuiXuefeng,ZhangYali(1.PetroChinaLiaoheOilfieldCompany,Panjin124010,China;2.ChinaUniversityofP
4、etroleum(Beijing),Beijing102249,China)Abstract:Inrecentyears,variousbreakthroughshavebeenmadeinburiedhillreservoirexplorationinLiaoheDepression.ExplorationtargetshaveshiftedfromtheShallow2mediumburiedhillreservoirswithclearerreservoirformingconditionstothelowandinnerburiedhillrese
5、rvoirswithdeeper,hiddenandmorecomplexfeatures.Reservoir2formingconditionsoflowandinnerburiedhillswerestudiedinaspectsofbasementtectonicactivity,typeofburiedhills,lithologyandreservoircharacteristics,hydrocarbongeneratingsystemandhydrocarbonconductingsystem.Apracticalclassification
6、methodofinnerburiedhillreservoirshasbeenre2establishedinaccordancewiththerelationshipbetweenburiedhillsandhydrocarbonaccumulations,bystudyingreservoircharacteristicsofinnerburiedhillreservoirswithconsiderationofexplorationpractices.Suchaclassificationmethodhaswidenedthehydrocarbon
7、searchingscopeinburiedhills,andbuiltupareservoirformingpatternfortheexplorationtargetsinsideburiedhillswithlowamplitude,multiphasefracturesandmultisourcecharging.Basedonthetheoreticalstudiesandexplorationpracticesoflowandinnerburiedhillreservoirs,the3Preservesreportedforlowandinne
8、rburiedhillreservoirsreached882.5
