济阳坳陷三合村洼陷油气运移与聚集规律Hydrocarbon migration and accumulation patterns in Sanhecun Sag of Jiyang Depression
方旭庆
摘要(Abstract):
利用钻井、地化等资料,通过油气运移路径恢复、油源对比等方法,对渤海湾盆地三合村洼陷油气的运移与聚集规律进行研究。结果表明,在东营期和馆上—明化镇期,北部渤南洼陷沙河街组油气对三合村洼陷进行过两期充注,具有"泾渭分明"的运移路径和油气聚集特征。东营期,渤南洼陷沙四段烃源岩油气沿Tr不整合面运移至三合村洼陷,再沿沙河街组沙三段骨架砂体横向运移,在沙三段地层圈闭和岩性圈闭中聚集成藏。馆上—明化镇期,渤南洼陷沙三段烃源岩油气先沿断层纵向运至新近系馆陶组,再沿馆陶组骨架砂体横向运移至三合村洼陷,在馆陶组构造圈闭、岩性圈闭和地层圈闭中聚集成藏。
关键词(KeyWords): 油气运移;运移路径恢复;油气聚集;济阳坳陷;三合村洼陷
基金项目(Foundation): 国家科技重大专项(编号:2011ZX05006-003)
作者(Author): 方旭庆
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