陈林;许涛;张立宽;刘传鹏;缪灏;

• 1:胜利油田分公司西部新区研究中心

• 2:中国科学院地质与地球物理研究所油气资源研究重点实验室

摘要(Abstract)：

通过储层镜下观察分析,研究准中1区块三工河组二段毯砂储层的微观特征;根据自生矿物之间的交代关系及矿物的溶解—充填等现象,分析各成岩作用发生的先后顺序;结合油气充注史研究,建立储层成岩演化序列与油气充注的耦合关系,分析主成藏期毯砂的物性及其输导能力.结果表明:该毯砂受成岩作用改造强烈,现今储层物性整体以低孔低渗为主,孔隙类型主要为次生溶蚀孔,储层经历多期溶解、多期胶结的过程,并伴随多期油气充注;在主成藏期,毯砂埋藏较浅,处于成岩早期,物性较好,可成为较好的横向输导层,在油源断层较少的情况下,与各级断层一起构成断—毯式输导体系,使油气得以大范围输导.

关键词(KeyWords)：成岩演化;物性演化;准噶尔盆地腹部;毯砂;三工河组;油气充注

Abstract:

Keywords:

基金项目(Foundation):国家油气重大专项(2011ZX05002-002)

作者(Author):陈林;许涛;张立宽;刘传鹏;缪灏;

Email:

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