提高穿层钻孔抽采效果技术研究与应用  

The Research and Application of Improving the Effect of Cross-measure Drilling Gas Extraction

作　　者：王冰松[1] 余超[2] 张振[2] 

机构地区：[1]安徽煤矿安全监察局淮北监察分局,安徽淮北235000 [2]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《山东煤炭科技》2015年第6期93-96,共4页Shandong Coal Science and Technology

摘　　要：瓦斯抽采钻孔围岩裂隙漏气是影响瓦斯抽采效率的重要原因,减少钻孔围岩漏气可以有效地提高瓦斯抽采浓度和瓦斯抽采流量。通过对钻孔围岩裂隙的生成因素及发育扩展特点进行分析,结合芦岭煤矿瓦斯抽采钻孔封堵实例,提出穿层钻孔裂隙堵漏措施使穿层钻孔抽采可以长期在较高负压条件下,保持大流量、高浓度抽采,对其他矿井治理瓦斯抽采漏气具有借鉴意义。The leakage of gas extraction from borehole surrounding rock crack is the important reason of affecting gas extraction efifciency, reduce the air leakage from borehole surrounding rock crack can effectively improve the gas extraction concentration and lfow.The characteristics of borehole ’s extension and development were analyzed.Proposing cross-measure borehole ifssure plugging measure with the example of Luling mine to make gas extraction can be big lfow, high contraction under the condition of high negative pressure. It has a guiding signiifcance in other mines.

关 键 词：钻孔 封孔 抽采效果 

分 类 号：TD712.624[矿业工程—矿井通风与安全]