绳索取心钻进工艺在山西吉县煤层气参数井的应用  

Application of Wire Line Coring Drilling Technology in CBM Parameter Wells in Jixian,Shanxi

作　　者：张吉路 

机构地区：[1]北京中煤大地技术开发公司,北京100054

出　　处：《中国煤炭地质》2010年第B08期134-136,共3页Coal Geology of China

摘　　要：为满足煤心装罐时间的要求,煤层气参数井必须使用绳索取心工艺采取煤心及其顶底板。常规的绳索取心钻进工艺及钻具结构规格已不适宜山西吉县煤层气参数井的钻进要求,为此,改进了绳索取心钻具结构规格,并对改进后的钻具及施工中采取的技术措施、钻井工艺、钻井液、钻进操作要领和技术要求进行了说明。To satisfy coal core canning time requirement,wire line coring technology have to be used in coal and its roof and floor coring in CBM parameter wells.But conventional coring drilling technology and drill tool structure and specification are unfit for drilling requirements in CBM parameter well drilling in the Jixian,Shanxi.To this end,drill tool structure and specification have been improved.The paper has explained drill tools improved and technical measures,drilling technology,drilling fluids,operation essentials,and technical requirements in operations.

关 键 词：煤层气参数井 地层条件 设备机具改进 钻井工艺 

分 类 号：P634.43[天文地球—地质矿产勘探]