黄玉欣;阮宝涛;李忠诚;宋文礼;胡望水;

• 1:长江大学地球科学学院

• 2:中国石油吉林油田分公司勘探开发研究院

摘要(Abstract)：

采用铸体薄片观察和压汞实验方法,识别松辽盆地南部王府断陷上侏罗统火石岭组火山岩类储层主要孔隙类型,分析孔隙微观结构特征。结果表明:王府气田火石岭组火山岩类储层储集空间主要由次生孔隙和裂缝构成。次生孔隙主要以溶蚀孔、脱玻化微孔为主;裂缝主要以构造缝、粒间溶蚀缝等为主。熔岩类主要发育脱玻化微孔,火山碎屑岩主要发育溶蚀孔和构造缝,熔岩—火山碎屑岩主要发育溶蚀孔和脱玻化微孔。溶蚀作用和裂缝作用的耦合增强火石岭组储层储集能力,改善储层渗流能力。在平均孔喉半径和平均配位数方面,火山碎屑岩(集块岩、火山角砾岩、凝灰岩)和熔岩—火山碎屑岩过渡类的大尺度孔喉系统较为发育。火山熔岩和熔岩—火山碎屑岩过渡类的微观孔隙结构好于火山碎屑岩类的,火石岭储层小尺度孔隙结构分为三类。Ⅰ型微观孔隙结构基本不发育。角砾熔岩、粗安岩、凝灰岩、凝灰熔岩主要以Ⅱ、Ⅲ型微观孔隙结构为主,孔隙结构相对较好;流纹岩、粗面岩、火山角砾岩以Ⅲ型微观孔隙结构为主,孔隙结构相对较差。

关键词(KeyWords)：孔隙类型;微观结构;上侏罗统;火石岭组;王府断陷;松辽盆地

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2016ZX05047-005)

作者(Author):黄玉欣;阮宝涛;李忠诚;宋文礼;胡望水;

Email:

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