钻进揭露煤体瓦斯库喷突形成机理及孔内事故处理方法

Formation Mechanism of Gas Outburst by Drilling in Coal and the Treatment Method of Borehole Accident

摘要:

松软煤层中钻进，揭露煤层瓦斯库形成的喷突，是造成孔内事故的重要原因。对瓦斯库喷突的形式和形成机理以及形成事故的原因进行了分析，在风力钻进工艺系统中，对常出现的问题和现场解决、处理问题的方法进行了总结，对松软煤层的钻进具有借鉴意义。

Abstract:

Gas outburst is the important reason of borehole accidents in soft coal seam drilling. In this paper, the formation mechanism of gas outburst and the causes of borehole accidents were analyzed and the methods of common problems in air drilling technology were summarized. All of these have important reference in soft coal seam drilling.