贾光华;

• 1:中国地质大学(武汉)资源学院

• 2:中国石化胜利油田分公司地质科学研究院

摘要(Abstract)：

东营凹陷南坡古近系孔一段和沙四下亚段发育以水上氧化环境为主的碎屑岩沉积.针对红层砂体储集特征,综合应用岩心、薄片、X线、压汞等资料,分析岩石学、成岩作用及储集空间特征,研究控制储层物性的主要因素.结果表明:红层砂体岩石成分以长石、岩屑为主,主要经历早成岩A期至中成岩A2期的成岩作用,原生及次生孔隙是主要储集空间.储层物性受沉积作用和成岩作用影响,其中沉积作用控制储层原生孔隙,成岩过程经历碱性和酸性的流体环境,早成岩B期溶蚀作用最强,形成大量次生孔隙.综合沉积相、成岩相及构造特征将红层砂体划分为高孔中高渗型、中孔中渗型、中低孔中低渗型和低孔低渗型等4类储层,明确优质储层的发育规律.

关键词(KeyWords)：东营凹陷;古近系;红层;储层特征;成岩作用

Abstract:

Keywords:

基金项目(Foundation):中国石化股份公司项目(P09009)

作者(Author):贾光华;

Email:

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