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大小:1.51 MB
页数:8页
时间:2019-05-13
《冀中坳陷文安斜坡第三系油气有效输导体系研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、第37卷第2期石油雾劈弛届Vol_37.No.22015年3月PETRoLEUMGEoLoGY&EXPERIMENTMar.,2015文章编号:1001—6112(2015)02—0179—08doi:10.7603/s40972—015—0028—0冀中坳陷文安斜坡第三系油气有效输导体系研究郭凯,曾溅辉,金凤鸣,郗秋玲,巩兴会(1.中国石油长城钻探工程有限公司解释研究中心,北京100101;2.中国石油大学油气资源与探测国家重点实验室,北京102249;3.中国石油大学地球科学学院,北京102249;4.中国石油华北油田勘探开发研
2、究院,河北任丘062552;5.中国石化上海海洋油气分公司研究院,上海200120)摘要:通过断层和砂体特征、古鼻状构造、断层活动史及有效运移通道指数等分析,对冀中坳陷文安斜坡第三系油气输导体系的组成与有效性及其对油气运移的影响进行了研究。研究区输导体系主要由骨架砂岩与多级顺向和反向断层组成,倾伏于斜坡西侧生油洼槽的多个古鼻状构造与该区输导体系的良好配置构成了油气向斜坡汇集与运移的有利条件;油气大规模运移时斜坡上主要断层的垂向输导作用有限,而众多NE向断层侧向调节所导致的砂砂对接使得油气可穿层运移,油气主要以由深层至浅层的阶梯状长距
3、离侧向运移为主。关键词:输导体系;鼻状构造;生长断层;油气运移;冀中坳陷中图分类号:TE122.1文献标识码:AEffectivepetroleummigrationsystemintheTertiaryofWen’anSlope,JizhongDepressionGuoKai,ZengJianhui,JinFengming,XiQiuling,GongXinghui(1.GeoscienceCenter,CNPCGreatwallDrillingCompany,BeO'ing100101,China;2StateKeyLabora
4、toryofPetroleumResourcesandProspecting,ChinaUnive~ityofPetroleum,Beijing102249,China;3.CollegeofC.eosciences,ChinaUnive~ityofPetroleum,Being102249,China;4.ResearchInstituteofExplorationandDevelopment,HuabeiOild,CNPC,Renqiu,Hebei062552,China;5.ResearchInstituteofSINOPEC
5、ShanghaiOffshoreOil&GasCompany,Shanghai200120,China)Abstract:Basedontheanalysisofthecharacteristicsoffaultsandsandbodies,paleo—nosestructures,faultactivityandeffectivemigrationpathwayindex,theconstitutionandeffectivenessofthemigrationsystemintheTertiaryoftheWen’anSlope
6、oftheJizhongDepressionanditseffectonoilmigrationwerestudied.Themigrationsystemofthestudyareawasmainlycomprisedofframeworksandstonesandmanynormalorreversefaults.Severalpaleo-nosestructurestowardsoilsourcingsagslocatedinthewestoftheWen’anSlopeandtheirmatchwiththemigratio
7、npathwaysystemwasfavorableforoilconvergenceandmigrationtowardstheslope.Verticalmigrationwaslimitedduringlarge—scaleoilmigration,butlateralmigrationcouldoccurthroughsandjuxtaposi—tionofdifferentformationslaterallyadjustedbymanyNEfaults.Ladder—likelateralmigrationoverlon
8、gdistancefromdeeptoshallowwasthedominantmigrationpattern.Keywords:migrationpathwaysystem;nosestructure;growthfault;oi
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