基于顺层定向长钻孔的煤层瓦斯抽采试验研究

Experimental Study on Coal Seam Gas Drainage Based on Longitudinal Long Drilling

针对某煤矿3#煤层主运大巷掘进工作面瓦斯严重超限的情况,采用顺层定向长钻孔预抽煤层瓦斯防突措施对其进行瓦斯治理,分析了施工前后瓦斯抽采量、瓦斯含量参数的变化,并统计对比了钻孔抽采工程量。

Aiming at the serious overburden of gas in the main driving roadway of No.3 coal seam in a coal mine, the gas control measures are carried out by using the method of pre-pumping coal seam gas outburst prevention and control. The changes of gas extraction and gas content parameters before and after construction are analyzed, and the amount of drilling and drainage, and statistical comparison of the amount of drilling and drainage works.