摘要
在煤层气钻井施工中,基本上采用石油钻井工艺。根据煤层气开采要求及相关技术标准,对钻井中的几个关键问题进行了分析,并提出了相应的技术措施:如针对井斜因素的防斜措施,在工开钻进时的井液控制,煤层钻进时的钻进参数调整;下套管深度及接箍位置以及固井方法。这些措施,可有效提高钻效,提高成井质量。
In CBM well drilling construction, oil drilling techniques are basically adopted. Based on CBM mining requirements and related technical standards analyzed some key problems in drilling and put forward corresponding technical measures： such as aimed at hole deflection preventing measures of drilling fluid controlling, parameters modulating during drilling in coal seams; case in depth, coupling position and well consolidation method. These measures can improve drilling efficiency and well completion quality.
出处
《中国煤田地质》
2007年第5期68-69,共2页
Coal Geology of China
关键词
钻井
煤层气
井斜
钻井液
固井
well drilling
CBM
well deflection, drilling fluid, well consolidation
