基于水力化措施的“钻-割-压-卸-注”瓦斯治理工艺  

Gas Control Technology Based on the Hydraulic Measures of "Drilling Cutting Pressuring Releasing and Injecting"

作　　者：付江伟[1,2] 傅雪海[1] 孙明闯 郭启文 

机构地区：[1]河南工程学院安全工程系,河南郑州451191 [2]河南省煤层气开发利用有限公司,河南郑州450016

出　　处：《煤矿安全》2014年第5期47-51,共5页Safety in Coal Mines

基　　金：国家重点基础研究发展计划(973计划)资助项目(2009CB219605)

摘　　要：在系统分析各种水力化措施作用机理及应用效果的基础上,按照"水"对煤层瓦斯作用机理和效果的不同,将水力化措施分为2大类("封堵"瓦斯;"排放"瓦斯);围绕这一分类,以煤层注水、水力割缝、水力压裂为代表,深入研究了3种水力化措施在煤层瓦斯治理中的作用机理及应用效果,分析了各种措施的优点及存在的问题。提出了基于区域瓦斯治理的以"前期长钻孔径向导控,深割缝侧向引导,大流量压裂增透,游离瓦斯快速高效抽采;后期中低压注水,煤体整体均匀湿润,抑制残余瓦斯"为核心的"钻-割-压-卸-注"水力化集成技术工艺。Based on analyzing the mechanism and application effect of various hydraulic measures, the article divides hydraulic meas- ures into two categories of plugging gas and emissions gas in accordance with the mechanism and effect of ＂water＂ on coal seam gas. According to the classification, taking hydraulic cutting seam, hydraulic fracturing and coal seam water injection as the representative, the article studies the mechanism action and application effect of three kinds of hydraulic measures in coal gas control, and analyzed the advantages and problems of various measures. Finally, it presented the integrated hydraulic technology of ＂drilling, cutting, pressing, releasing, injectng ＂ that takes ＂long drill aperture to guide, deep kerr lateral guidance, large flow of fracturing permeability improvement, rapid and efficient extraction of free gas at an early stage ; low pressure injection, the overall uniform wetting of coalbed, inhibition of residual gas in the later stages＂ as the core.

关 键 词：水力化措施 水力割缝 水力压裂 煤层注水 煤与瓦斯突出 

分 类 号：TD712[矿业工程—矿井通风与安全]