马兰矿煤层瓦斯钻孔抽采技术应用研究

Research on the Application of Coal Seam Gas Drilling and Drainage Technology in Malan

随着煤矿开采深度逐渐增加,瓦斯压力大、含量高、渗透率低等特征愈发明显,抽采难度孔难度和工作量也不断增大。针对马兰矿煤层瓦斯抽采对钻孔工程需求,研究设计了煤层钻孔工程安全保护措施,经过20 d的煤层钻孔实验,共完成钻孔128个,完成了实验目标。为煤矿在煤层安全高效钻孔方面提供借鉴和参考。

As the depth of coal mining gradually increases,the characteristics of high gas pressure,high content,and low permeability become increasingly apparent,and the difficulty and workload of extraction holes are also increasing.In response to the drilling engineering requirements for coal seam gas extraction in Malan Mine,safety protection measures for coal seam drilling engineering were studied and designed.After 20 days of coal seam drilling experiments,a total of 128 boreholes were completed,achieving the experimental objectives,and providing reference and guidance for coal mines in the safe and efficient drilling of coal seams.