李飞;曾溅辉;金凤鸣;刘井旺;赵智鹏;刘佳;葛黛薇;吴晨林;

• 1:中国石油大学地球科学学院

• 2:中国石油华北油田分公司勘探开发研究院

• 3:中国石油华北油田分公司地球物理勘探研究院

摘要(Abstract)：

华北牛驼镇凸起潜山地层中方解石脉体发育,根据研究区潜山地层方解石脉体及其围岩岩石学、同位素等特征,结合埋藏史、热史和构造演化史,分析流体来源及活动期次。结果表明:牛驼镇凸起潜山地层发育4种类型方解石脉体(Cal_1、Cal_2、Cal_3和Cal_4),其中加里东运动早期形成的Cal_1型脉体与围岩同位素特征相似,流体来源于围岩。加里东运动晚期形成的Cal_2型脉体相对围岩具有δ~(13)C相似、δ~(18)O亏损和~(87)Sr/~(86)Sr富集的特征,流体来源于大气水和围岩的混合。喜马拉雅运动Es_3-Es_4期形成的Cal_3型脉体相对围岩具有δ~(13)C和δ~(18)O亏损、87Sr/86Sr富集的特征,流体来源于岩浆活动。喜马拉雅运动Ng-Nm末期形成的Cal_4型脉体相对围岩也具有δ~(13)C和δ~(18)O亏损、~(87)Sr/~(86)Sr富集的特征,其形成与烃类流体有关,主要来源于霸县洼槽的Es_3烃源岩在Ng-Nm末期大规模的生排烃。该研究成果为分析研究区油气运移期次提供理论依据。

关键词(KeyWords)：牛驼镇凸起;潜山;方解石脉体;稳定同位素;流体活动

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05006-001);; 中国石油华北油田科技攻关项目(HBYT-YJY-2013-JS-223)

作者(Author):李飞;曾溅辉;金凤鸣;刘井旺;赵智鹏;刘佳;葛黛薇;吴晨林;

Email:

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