汪少勇;李建忠;王社教;李登华;

• 1:中国石油勘探开发研究院

摘要(Abstract)：

为研究辽河坳陷雷家地区沙四段致密储层储集性能,采用矿物成分分析、铸体薄片、扫描电镜分析、微米CT扫描和高压压汞实验等方法,利用孔喉值确定致密储层的孔隙结构和优势岩性,并估算物性下限。结果表明:杜家台致密储层可分为白云岩、细粒混积岩和方沸石岩三类,其连通孔隙体积分别占总孔喉体积的37%、35%和28%。储层普遍发育纳米孔、微米孔和裂缝,各岩性类致密储层渗透率与最大孔喉半径、主要流动孔喉半径相关性较好,呈指数正相关关系,渗透性主要由较大孔喉提供。白云岩、细粒混积岩和方沸石岩类有利储层孔隙度下限分别为5.8%、6.2%和7.1%,有效储层孔隙度下限分别为2.8%、3.3%和4.6%。该结论为认识雷家地区致密油资源潜力并指导勘探提供依据。

关键词(KeyWords)：致密储层;孔隙结构;物性下限;雷家地区

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05028-002);; 中国石油天然气股份有限公司科学研究与技术开发项目(2013E-0502)

作者(Author):汪少勇;李建忠;王社教;李登华;

Email:

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