常村煤矿高瓦斯低透气性煤层CO_2致裂增透技术研究
|
摘要
为了解决低透气性煤层瓦斯治理的难题,以常村煤矿23采区胶带运输大巷为工程背景,分析了CO_2致裂增透技术原理,设计了常村煤矿23采区胶带运输大巷CO_2致裂增透技术方案,确定其致裂参数与范围。现场应用结果表明,采用CO_2致裂增透技术后,瓦斯抽采浓度由原来普遍低于40%,在较长时间内维持在40%左右,胶带大巷煤体中的瓦斯含量平均减少了2.37 m~3/t,最高减幅达到42.36%,瓦斯抽采效果明显提高。
In order to solve the problem of gas control in low-permeability coal seam, the author analyzed the principle of CO_2 fracturing technology for permeability improvement by taking belt transportation roadway in No. 23 mining area of Changcun Coal Mine, and designed the scheme of CO_2 fracturing technology for the roadway and determined its fracturing parameters and range. The field application results showed that the gas extraction concentration kept around 40% for a long time while it was generally less than 40% before, and the gas content in the coal body of the belt roadway was reduced 2.37 m~3/t, the maximum reduction reached 42.36%. The gas extraction efficiency was improved obviously.
In order to solve the problem of gas control in low-permeability coal seam, the author analyzed the principle of CO_2 fracturing technology for permeability improvement by taking belt transportation roadway in No. 23 mining area of Changcun Coal Mine, and designed the scheme of CO_2 fracturing technology for the roadway and determined its fracturing parameters and range. The field application results showed that the gas extraction concentration kept around 40% for a long time while it was generally less than 40% before, and the gas content in the coal body of the belt roadway was reduced 2.37 m~3/t, the maximum reduction reached 42.36%. The gas extraction efficiency was improved obviously.
引文
[1] 张晓磊,程远平,王亮等.煤与瓦斯突出矿井工作面顶板高位钻孔优化设计[J].煤炭科学技术,2014(10)
[2] 杨开发.煤与瓦斯突出矿井回采工作面避难硐室布置分析[J].煤炭工程,2014(6)
[3] 杨彦群.高瓦斯突出矿井综采工作面瓦斯综合防治技术[J].煤炭科学技术,2012(6)
[4] 沈春明,林柏泉,朱传杰等.关于煤与瓦斯突出矿井鉴定若干问题的探讨与思考[J].煤矿安全,2011(3)
[5] 武志高,令狐建设,赵庆珍等.CO2预裂增透抽采瓦斯技术及工程试验[J].煤炭工程,2018(8)
[6] 张东明,白鑫,尹光志等.低渗煤层液态CO2相变定向射孔致裂增透技术及应用[J].煤炭学报,2018(7)
[7] 贺超.基于二氧化碳深孔致裂增透技术的低透煤层瓦斯治理[J].煤炭科学技术,2017(6)
[8] 张继兵,高云.液态CO2压裂增透技术在松软煤层瓦斯治理上的应用[J].煤矿安全,2018(4)
[9] 邹永洺.煤与瓦斯突出煤层CO2相变致裂增透技术试验研究[J].煤矿安全,2018(3)
[10] 罗朝义,江泽标,郑昌盛等. CO2相变致裂技术在顺煤层钻孔增透中的应用[J].煤炭科学技术,2017(11)
[11] 张柏林,李豪君,张兴华.基于COMSOL数值模拟的液态CO2相变致裂布孔参数优化[J].煤矿安全,2018(9)
[12] 贾男.低透气性软煤层筛管护孔与CO2相变致裂增透技术的联合应用[J].煤矿安全,2018(1)
[13] 张宏伟,朱峰,李云鹏等.液态CO2致裂技术在冲击地压防治中的应用[J].煤炭科学技术,2017(12)
[14] 韩颖,史晓辉,雷云等.液态CO2相变致裂增透预抽瓦斯技术试验研究[J].煤矿安全,2017(10)
[2] 杨开发.煤与瓦斯突出矿井回采工作面避难硐室布置分析[J].煤炭工程,2014(6)
[3] 杨彦群.高瓦斯突出矿井综采工作面瓦斯综合防治技术[J].煤炭科学技术,2012(6)
[4] 沈春明,林柏泉,朱传杰等.关于煤与瓦斯突出矿井鉴定若干问题的探讨与思考[J].煤矿安全,2011(3)
[5] 武志高,令狐建设,赵庆珍等.CO2预裂增透抽采瓦斯技术及工程试验[J].煤炭工程,2018(8)
[6] 张东明,白鑫,尹光志等.低渗煤层液态CO2相变定向射孔致裂增透技术及应用[J].煤炭学报,2018(7)
[7] 贺超.基于二氧化碳深孔致裂增透技术的低透煤层瓦斯治理[J].煤炭科学技术,2017(6)
[8] 张继兵,高云.液态CO2压裂增透技术在松软煤层瓦斯治理上的应用[J].煤矿安全,2018(4)
[9] 邹永洺.煤与瓦斯突出煤层CO2相变致裂增透技术试验研究[J].煤矿安全,2018(3)
[10] 罗朝义,江泽标,郑昌盛等. CO2相变致裂技术在顺煤层钻孔增透中的应用[J].煤炭科学技术,2017(11)
[11] 张柏林,李豪君,张兴华.基于COMSOL数值模拟的液态CO2相变致裂布孔参数优化[J].煤矿安全,2018(9)
[12] 贾男.低透气性软煤层筛管护孔与CO2相变致裂增透技术的联合应用[J].煤矿安全,2018(1)
[13] 张宏伟,朱峰,李云鹏等.液态CO2致裂技术在冲击地压防治中的应用[J].煤炭科学技术,2017(12)
[14] 韩颖,史晓辉,雷云等.液态CO2相变致裂增透预抽瓦斯技术试验研究[J].煤矿安全,2017(10)