摘要
介绍了抽放瓦斯定向钻孔施工技术的主要设备、钻具及仪器,组合钻具及钻进工艺参数,并通过几个工程实例,说明了该项技术的应用效果。
The main equipment, drilling tools, instrument, borehole assembly and drilling parameters for drilling controlled directional gas drawing out hole are introduced. The effects of this technology are explained through several engineering cases.
出处
《探矿工程》
2003年第4期50-52,共3页
Exploration Engineering(Drilling & Tunneling)
关键词
煤矿
抽放瓦斯
定向钻孔
MK系列全液压钻机
组合钻具
coal mine
gas drawing out
controlled directional borehole
MK Serial Hydraulic Drill
borehole assembly
