摘要
介绍了煤矿井下保直钻进技术,根据施工煤矿的岩层性质和钻探设备,采用优选和设计的保直稳定组合钻具,通过穿层孔保直钻进试验,大幅提高了成孔质量和成孔率,较好地解决了钻孔严重偏斜的问题。
Straight guided drilling technology is introduced in underground coal mine. According to the rock formation property and drilling equipment of the coal mine, using the assembly drilling tools which are developed and optimized, through the drilling experiment, the hole quality and the hole success rate is greatly improved, the problem of borehole deviation has been solved better.
出处
《山西建筑》
2011年第9期104-105,共2页
Shanxi Architecture
关键词
煤矿井下
保直钻进技术
巷道对穿钻孔
underground coal mine, straight guided drilling technology, through coal roadway borehole
