摘要
本文分析了我国煤层气勘探开发现状和前景,研究了我国煤层气储层孔隙和裂隙系统特征,分析了煤层气钻井的储层伤害机理。针对煤层气钻井储层保护难点,提出了采用低固相或无固相钻井液、欠平衡钻井技术、屏蔽暂堵技术和加强固相控制等煤层气钻井储层保护技术。
This paper firstly analyzes the current situation and prospects of Chinese coalbed methane explo- ration and development, and then studies the coalbed methane reservoir porosity and fracture system character- istics, and analysis reservoir damage mechanism of coalbed methane drilling. Finally, to solve the difficulty of coalbed methane driUing reservoir protection, there are many coal bed methane drilling reservoir protection technology such as low solid or clay free drilling fluid, under balanced drilling technology, temporary plugging technology and the strengthening of the solid phase control.
出处
《中国煤层气》
2012年第3期35-37,共3页
China Coalbed Methane
基金
国家重点基础研究发展规划基金资助项目(2008CB211705)
关键词
储层保护
低固相或无固相钻井液
欠平衡钻井
屏蔽暂堵
固相控制
Reservoir protection
low solid or clay free drilling fluid
under balanced drilling
temporaryplugging
solid phase control
