页岩气开发:岩石力学的机遇与挑战

被引：62

作者：

陈勉 ^{[1
,2
]}

金衍 ^{[1
,2
]}

卢运虎 ^{[1
,2
]}

机构：

[1] 油气资源与工程国家重点实验室

[2] 中国石油大学(北京)石油工程学院

来源：

中国科学:物理学力学天文学 | 2017年 / 47卷 / 11期

基金：

国家自然科学基金重大项目;

关键词：

页岩气; 岩石力学; 井壁稳定; 储层改造;

D O I：

暂无

中图分类号：

TE37 [气田开发与开采];

学科分类号：

082002 [油气田开发工程];

摘要：

长水平段水平井和分段水力压裂技术是提高我国页岩气单井产量的关键技术.随着页岩气勘探开发面向深层,水平井钻完井面临安全钻进风险高、高效压裂难度大和单井产量低且递减快等难题,问题的核心仍是发展页岩储层断裂、破坏和流动模型,其本质仍为页岩气储层岩石力学问题.受机理研究制约,目前在页岩储层实验测试、裂缝系统与渗流、多场耦合和孔隙弹性等方面仍需要进一步研究与突破.中国的页岩气开发虽然取得了阶段性的成果,其面临的问题仍不容忽视,发展岩石力学相关理论对页岩气开发关键技术有重要的指导意义.同时,低油价条件下清洁开发、降低工程成本和提高单井产量是贯穿页岩气全生产周期的关键问题.本文重点分析页岩气储层力学特征评价、断裂与渗流和流固耦合等机理问题及其研究进展,介绍页岩储层实验测试、井筒安全和高效开采等关键问题,讨论未来的研究方向和热点.

引用

页码：6 / 18

页数：13

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