大佛寺煤矿地面瓦斯抽采井型设计优化分析  

Optimizing Analysis of the Design of Surface Gas Extraction Well-type in Dafosi Coal Mine

作　　者：李孝波 李继昌 陈跟马 李庆钊[3] 代华明[3] 

机构地区：[1]陕西彬长矿业集团有限公司,陕西咸阳721000 [2]陕西彬长大佛寺矿业有限公司,陕西咸阳721000 [3]中国矿业大学安全工程学院,江苏徐州221116

出　　处：《煤矿安全》2014年第5期144-147,共4页Safety in Coal Mines

摘　　要：煤矿瓦斯地面抽采逐步成为瓦斯抽采的主要方式,抽采井井型选择一直是设计难点。为探究适合大佛寺煤矿的地面抽采井型,研究了大佛寺煤矿煤层储存特性,发现矿区煤层吸附能力和渗透率较好,不同煤层间存在差异,由此优化设计了"U"型、"V"型和多分支水平井,为提高瓦斯抽采量提供了新途径。Surface gas extraction will be the main way of gas extraction in coal mine. The selection of well - type has become the diffi- culty of gas extraction. In order to find a set of appropriate well - type to Dafosi Coal Mine, this article has researched the storage characteristics of the mine. It is found that the adsorption capacity and permeability in Dafosi Coal Mine are better than many mines. Different coal seams show difference in adsorption capacity and permeability at the same coal mine. Thus, the well type of ＂U＂ , ＂V＂ and multiple branches are proposed to improve the gas extraction volume.

关 键 词：瓦斯抽采 井型设计 吸附性 渗透率 地面抽采 

分 类 号：TD712[矿业工程—矿井通风与安全]