潜山油气藏勘探理论与实践_以辽河坳陷为例.pdf

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

孟卫工1,陈振岩1,李湃1,郭彦民1,高先志2,回雪峰1,张亚丽1
(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
和潜山内幕累计上报三级储量分别达2.54×108t和1.76×108t,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;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:A

Explorationtheoriesandpracticesofburied2hillreservoirs:
AcasefromLiaoheDepressions
MengWeigong1,ChenZhenyan1,LiPai1,GuoYanmin1,GaoXianzhi2,HuiXuefeng1,ZhangYali1
(1.PetroChinaLiaoheOilfieldCompany,Panjin124010,China;2.ChinaUniversity
ofPetroleum(Beijing),Beijing102249,China)
Abstract:Inrecentyears,variousbreakthroughshavebeenmadeinburiedhillreservoirexplorationinLiaoheDepression.
ExplorationtargetshaveshiftedfromtheShallow2mediumburiedhillreservoirswithclearerreservoirformingconditionstothelow
andinnerburiedhillreservoirswithdeeper,hiddenandmorecomplexfeatures.Reservoir2formingconditionsoflowandinner
buriedhillswerestudiedinaspectsofbasementtectonicactivity,typeofburiedhills,lithologyandreservoircharacteristics,
hydrocarbongeneratingsystemandhydrocarbonconductingsystem.Apracticalclassificationmethodofinnerburiedhillreservoirs
hasbeenre2establishedinaccordancewiththerelationshipbetweenburiedhillsandhydrocarbonaccumulations,bystudying
reservoircharacteristicsofinnerburiedhillreservoirswithconsiderationofexplorationpractices.Suchaclassificationmethodhas
widenedthehydrocarbonsearchingscopeinburiedhills,andbuiltupareservoirformingpatternfortheexplorationtargetsinside
buriedhillswithlowamplitude,multiphasefracturesandmultisourcecharging.Basedonthetheoreticalstudiesandexploration
practicesoflowandinnerburiedhillreservoirs,the3Preservesreportedforlowandi