刘丰;吴奎;万琳;王冰洁;

• 1:中海石油(中国)有限公司天津分公司

摘要(Abstract)：

基于岩心观察、铸体薄片镜下观察与统计、扫描电镜观察、岩石物性测试等资料,分析辽中凹陷X油田东营组三段(东三段)辫状河三角洲前缘储层物性特征及主控因素。结果表明,东三段岩石类型以岩屑质长石砂岩为主,以原生粒间孔和溶蚀孔为主。东三段碎屑岩储层经历复杂成岩作用及演化,现今处于中成岩B期,不同成岩作用对储层物性影响不同,溶蚀作用形成的次生孔隙能有效改善储层物性,在较强的水动力沉积环境下,分选好的中、细砂岩物性较好,在多期油气充注过程中,有机酸释放促进溶蚀作用的发生,形成有效储集空间;构造裂缝或微裂缝也能有效改善储层物性。该研究结果可以为辽中凹陷中深层油气勘探开发提供指导。

关键词(KeyWords)：储层物性;砂岩类型;岩石学特征;辫状河三角洲;辽中凹陷

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05023-006-002)

作者(Author):刘丰;吴奎;万琳;王冰洁;

Email:

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