采空区瓦斯地面抽采应用实践

Application of gas surface drainage in Goaf

本文针对在阳泉矿区寺家庄井田采空区实际情况采用两种不同井深结构进行钻进开发试验。产气效果评价对比表明:以K2砂岩为目的层位的井产气效果更好,而以15#煤采空区为目的层的井产气效果较差,为高效利用采空区煤层气资源提供了借鉴。

In view of the actual situation of the goaf in Sijiazhuang mine field,Yangquan mining area,this paper adopts two different well depth structures for drilling development test.The evaluation and comparison of gas production effect show that the gas production effect of the well with K2 sandstone as the target layer is better,while the gas production effect of the well with 15×coal goaf as the target layer is worse,which provides a reference for the efficient utilization of coalbed methane resources in goaf.