摘要
在非平衡条件下进行的瓦斯地质钻探工作中,根据不同的瓦斯地质条件设计、制造不同类型的钻杆,在解决松软煤层的钻进中取得了较好的效果。结合实际工作中不同钻杆的使用情况,对其排渣机理、适用条件以及应用中要注意的问题和工艺参数进行了论述,对钻具级配的选择具有指导意义。
Good progress has been made in the drilling work under unbalanced conditions by designing and producing different drilling pipes on the basic of different gas geological conditions. The paper expounds the slag discharging mechanism, the scope of application, as well as the attentions and technological parameters of different dilling pipes.
出处
《探矿工程（岩土钻掘工程）》
2008年第9期11-15,共5页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
煤矿瓦斯
地质钻探
钻杆
非平衡条件
排渣机理
工艺参数
coalmine gas
geological drilling
drilling pipe
unbalanced condition
slag discharging mechanism
technical parameters
