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时间:2020-03-28
《二连盆地优质烃源岩发育特征及成藏贡献.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第37卷第5期石油褒劈沾质Vo1.37.No.52015年9月PETRoLEUMGE0LoGY&EXPERn厦ENTSep.,2015文章编号:1001-6112(2015)05—0641-07doi:10.11781/sysydz201505641二连盆地优质烃源岩发育特征及成藏贡献王建2,王权,钟雪梅,董雄英,马学峰,隋丽敏(1.中国矿业大学地质学博士后流动站,北京100083;2.中国石油华北油田分公司勘探开发研究院。河北任丘062552)摘要:二连盆地由众多小凹陷组成。物源多、相变快且热演化程度较低,是否发育优质烃源岩决定了
2、油气藏的勘探方向。通过建立残余有机碳含量与氢指数相关关系,以及不同沉积环境下有机碳含量的变化.发现浅湖与较深湖等稳定沉积区优质烃源岩发育,河流与滨浅湖等不稳定沉积区主要发育中一差烃源岩;利用残余有机碳对不同沉积相带烃源岩级别进行划分,稳定沉积区可划分出优质[(1Dc)>2%]、中等[1%1%3与差[(TOC)3、且资源贡献率大,占烃源岩总体积20%以上的优质烃源岩资源贡献率超过了70%,其分布区是寻找规模储量的有利区域。关键词:油气成藏;资源预测;优质烃源岩;测井评价;二连盆地中图分类号:TEl22.11文献标志码:ACharacteristicsofhigh-qualityhydrocarbonsourcerocksandtheircontributionstoreservoirsintheErlianBasinWangJian,WangQuan,ZhongXuemei,DongXiongying,MaXuefeng,SuiLimin(14、.ChinaUniversityofl~ning&Technology,Beijing100083,China;2.ExplorationandDevelopmerttResearchInstitute,PetroChinaHuabeioaf~taCompany,Renqiu,Hebei062552,China)Abstract:TheErlianBasinconsistsofmanysagscharacterizedbymultipleprovenances,changeablephasesandalowdegreeoftherm5、alevolution.Theidentificationofhigh—qualitysourcerocksdeterminesthedirectionofexplorationeforts.BybuildingcorrelationsbetweenTOCandHI,andanalyzingthechangesoforganiccarboncontentsunderva-rioussedimentarycircumstances,wehaveshownthatstablesedimentaryaliassuchasshallowla6、kesandrelativelydeeplakescommonlydevelophiSh—q~aitysourcerocks,andunstablesedimentaryareaslikeriversandshallowshorelakescommonlydeveloppoor-ormedium-qualitysourcerocks.WecanuseTOCtoclassifyseul'cerocklevels.Thesourcerocksfromstablesedimentaryareasaredividedintohigh(TOC7、>2%),medium(1%8、ofsollrcerocksCanbeascertained.High-qualitysourcerockshaveacloserelationshipwith0ilandgasreservoirs.andarethemainsour
3、且资源贡献率大,占烃源岩总体积20%以上的优质烃源岩资源贡献率超过了70%,其分布区是寻找规模储量的有利区域。关键词:油气成藏;资源预测;优质烃源岩;测井评价;二连盆地中图分类号:TEl22.11文献标志码:ACharacteristicsofhigh-qualityhydrocarbonsourcerocksandtheircontributionstoreservoirsintheErlianBasinWangJian,WangQuan,ZhongXuemei,DongXiongying,MaXuefeng,SuiLimin(1
4、.ChinaUniversityofl~ning&Technology,Beijing100083,China;2.ExplorationandDevelopmerttResearchInstitute,PetroChinaHuabeioaf~taCompany,Renqiu,Hebei062552,China)Abstract:TheErlianBasinconsistsofmanysagscharacterizedbymultipleprovenances,changeablephasesandalowdegreeoftherm
5、alevolution.Theidentificationofhigh—qualitysourcerocksdeterminesthedirectionofexplorationeforts.BybuildingcorrelationsbetweenTOCandHI,andanalyzingthechangesoforganiccarboncontentsunderva-rioussedimentarycircumstances,wehaveshownthatstablesedimentaryaliassuchasshallowla
6、kesandrelativelydeeplakescommonlydevelophiSh—q~aitysourcerocks,andunstablesedimentaryareaslikeriversandshallowshorelakescommonlydeveloppoor-ormedium-qualitysourcerocks.WecanuseTOCtoclassifyseul'cerocklevels.Thesourcerocksfromstablesedimentaryareasaredividedintohigh(TOC
7、>2%),medium(1%8、ofsollrcerocksCanbeascertained.High-qualitysourcerockshaveacloserelationshipwith0ilandgasreservoirs.andarethemainsour
8、ofsollrcerocksCanbeascertained.High-qualitysourcerockshaveacloserelationshipwith0ilandgasreservoirs.andarethemainsour
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