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《黄骅坳陷滨海地区沙三段储层的油气成藏特征:流体包裹体证据-论文.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33卷第2期世界地质Vo1.33No.22014年6月GLOBALGEOLOGYJun.2014文章编号:1004—5589(2014)02~0448—09黄骅坳陷滨海地区沙三段储层的油气成藏特征:流体包裹体证据刘玉明,武战国,张锺月。1.中海油能源发展钻采工程研究院,天津300452;2.大港油田勘探开发研究院,天津300280;3.吉林大学地球科学学院,长春130061摘要:黄骅坳陷滨海地区沙河街组三段储层是中国深部油气勘探的新层位之一。为揭示该区油气成藏演化,对储层中流体包裹体岩相学特征、产出特征、包裹体均一温度和含油包裹体丰度进行了研究。结果表明,沙河街组三
2、段储层中存在三期油气包裹体,分别代表了三期油气注入。I期包裹体的均一温度为86℃~126℃,GOI为15%~35%,油气充注时期为36~25Ma,开始有油气进入到储层中;Ⅱ期包裹体的均一温度为120℃~140℃,GOI为30%~60%,油气注入时期为27~12Ma,烃源岩进入生排烃高峰期,发生大规模油气运聚,是主要的成藏时期;III期包裹体的均一温度为138cC~155c【=,GOI为1%~8%,油气注入时期为12~6Ma,油气运移规模急剧减小。关键词:沙河街组三段储层;流体包裹体;油气成藏;黄骅坳陷中图分类号:P618.130.2文献标识码:Adoi:10.3969
3、/j.issn.1004—5589.2014.02.022CharacteristicsofhydrocarbonaccumulationfromEs3reservoirofBinhaiareainHuanghuadepression:evidencefromfluidinclusionLIUYu.ruing。WUZhan—guo.ZHANGZhong—yue,.CNOOCEnergyDevelopmentDrillingandProductionEngineeringResearchInstitute,Tianjin300452,China;2.ResearchIn
4、stituteofExplorationandDevelopment,DagangOilfieldCompany,CNPC,Ⅱn300280,China;3.CollegeofEarthSciences,JilinUniversity,Changchun130061,ChinaAbstract:TheEs3reservoirofBinhaiareaisanewfieldofdeepoil—gasexplorationinHuanghuadepression.Theauthorsanalyzethepetrography,occurrence,homogenizatio
5、ntemperatureandGOIoffluidinclusionswiththeaimofdeterminingtheevolutionofoil·gasaccumulation.TheresultsshowthattherearethreestagesofhydrocarboninclusionintheEs3reservoir,indicatingthreehydrocarboncharginghistories.Thevaluesofhomogenizationtern—peratureandGOIfromstageIinclusionvariedfrom8
6、6~Cto126~Candfrom15%to35%,respectively,indica—tingthehydrocarbonchargingoccurredduring37~25Ma,withprimarymigrationofoilandgas.ResultsfromstageⅡinclusion.showedvaluesofhomogenizationtemperatureandGOIfrom120oCto140oCandfrom30%to60%,respectively,suggestinghydrocarbonchargingoccurredduring2
7、7~12Ma,theperiodwasthemostimpor—tantformingtimeofoil—gasreservoirs,whichthesourcerockgeneratedhydrocarboninitsmaximumamount.Val-uesofhomogenizationtemperatureandGOIfromstageⅢinclusionrangedfrom138~Cto155℃andfrom1%to8%,respectively,implyingthathydrocarbonchargingoccurredduring12
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