卢海娇;赵红格;李文厚;

• 1:西北大学地质学系

• 2:西北大学大陆动力学国家重点实验室

摘要(Abstract)：

苏里格气田盒8气层组砂体厚度大、内部结构复杂、岩性变化快,砂体构型严重制约地下砂体和有效储层的认识,影响气井的井位部署、井轨迹设计及开发效果.基于储层构型分析方法,以古代露头和现代沉积构型模式为指导,采用岩心观察及测井曲线精细识别技术,分析盒8气层组储层成因及砂体构型,确定各构成单元的沉积特征、构型模式、规模和空间叠置方式.结果表明:盒8气层组为砂质辫状河沉积相,厚储层主要为辫状河道复合砂体,辫状河相划分为4类亚相、7类微相;辫状河道复合砂体内部为近水平或水平波状薄夹层构型模式,分为孤立型、横向局部连通型、堆积叠置型、切割叠置型等4类空间叠置模式.该研究结果为深化盒8气层组储层认识,指导该区水平井部署与明确地质导向提供依据.

关键词(KeyWords)：辫状河道;储层内部构型;有效储层叠置模式;苏里格气田;盒8气层组

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05015-1)

作者(Author):卢海娇;赵红格;李文厚;

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