李宗奇;林承焰;张宪国;孙志峰;

• 1:中国石油大学(华东)地球科学与技术学院

• 2:中国石油大学(华东)山东省油藏地质重点实验室

摘要(Abstract)：

为查明油田开发中后期储层构型对剩余油分布的影响,以孤东油田七区西Ng52+3层曲流河储层为对象,在沉积微相研究基础上,采用岩心观察、测井曲线识别和动态资料分析等方法,刻画微相内部的储层建筑结构。在储层中划分不同级次构型界面,识别构型单元类型,并结合露头和现代沉积成果、经验公式、对子井资料分析,研究不同级次构型单元的发育规模。利用测井及生产动态资料,分析以侧积层为代表的构型界面对剩余油分布的控制作用。结果表明:研究区Ng52+3层发育点坝、废弃河道、泛滥平原3种微相类型,沉积单元内部划分出1~5级构型界面;识别出单一曲流带、点坝砂体、单一侧积体等不同级次构型单元,并确定单一曲流带宽度、点坝长度和厚度、单一侧积体厚度和水平宽度,以及侧积层平面间距和倾角等参数的取值范围。该研究为孤东油田储层精细表征及剩余油预测与开发提供指导。

关键词(KeyWords)：曲流河;储层构型;侧积层;剩余油;孤东油田

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2016ZX05009-001-001);; 国家自然科学基金项目(41672129)

作者(Author):李宗奇;林承焰;张宪国;孙志峰;

Email:

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