煤矿井下钻孔一孔多用瓦斯抽采技术  

Gas Drainage Technology with Multi- application Drilling of Underground Boreholes in Coal Mine

作　　者：宋金星[1,2] 王正伟 

机构地区：[1]河南理工大学能源科学与工程学院,河南焦作454000 [2]中原经济区煤层(页岩)气河南省协同创新中心,河南焦作454000 [3]鹤壁煤电股份有限责任公司六矿,河南鹤壁458000

出　　处：《煤矿安全》2016年第2期73-76,共4页Safety in Coal Mines

基　　金：河南省科技攻关计划资助项目(112102310362);河南省教委自然科学基金资助项目(12B440003);河南省煤矿安全生产科技发展计划资助项目(HN15-57)

摘　　要：基于采动过程中"三场"演化规律及采前、采中、采后瓦斯抽采思路,提出了煤矿井下钻孔一孔多用瓦斯抽采技术,即先后实现地质探孔、采前水力压裂抽采、采中卸压抽采、采后采空区抽采以及截流围岩和邻近层瓦斯等功能;进行了一孔多用现场瓦斯抽采试验,取得了良好的抽采效果。On the basis of the evolution laws of ＂three fields＂ and technological idea before gas drainage, during or after coal seam mining, the gas drainage technology with multi-application drilling for underground boreholes in coal mine is proposed. The key technology is that the underground boreholes play the role of geological drilling, hydraulic fracturing drilling, pressure relief drilling, goaf gas extraction drilling, and intercepting gas of surrounding rock and the adjacent layer. The good drainage effect is achieved by multi-application drilling engineering experiment.

关 键 词：煤矿井下 一孔多用 瓦斯抽采 三场演化规律 适用性分析 

分 类 号：TD712.6[矿业工程—矿井通风与安全]