基于水力致裂的瓦斯驱赶技术研究
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摘要
煤矿瓦斯安全一直影响着煤矿生产的关键性问题,研究了水力致裂的瓦斯驱赶技术,依据水力致裂裂缝区域确定出应力扰动区、瓦斯驱赶区域、水力致裂的润湿区域;然后把水力致裂技术应用实践中,分析了水力致裂全过程水力压力变化、水力压裂前后各个取样点的瓦斯含量变化以及掘进工作面迎头瓦斯浓度。研究得出,采用深孔水力致裂技术,减少了区域孔的工程量,很少出现吸钻和卡钻的现象,提高了巷道掘进速度。
Coal mine gas safety has always affected the key problems of coal mine production.This paper studied the hydraulic fracturing gas drive technology,and determined the stress disturbance zone,gas flooding zone and hydraulic fracturing wet zone based on the hydraulic fracture zone;in the application practice of hydraulic fracturing technology,the hydraulic pressure change in the whole process of hydraulic fracturing,the change of gas content at each sampling point before and after hydraulic fracturing and the gas concentration in the heading face of the driving face were analyzed.The study showed that the deep hole hydraulic fracturing technology reduces the engineering volume of the regional holes,and the phenomenon of suction and card drilling is rare,and the tunneling speed is improved.
Coal mine gas safety has always affected the key problems of coal mine production.This paper studied the hydraulic fracturing gas drive technology,and determined the stress disturbance zone,gas flooding zone and hydraulic fracturing wet zone based on the hydraulic fracture zone;in the application practice of hydraulic fracturing technology,the hydraulic pressure change in the whole process of hydraulic fracturing,the change of gas content at each sampling point before and after hydraulic fracturing and the gas concentration in the heading face of the driving face were analyzed.The study showed that the deep hole hydraulic fracturing technology reduces the engineering volume of the regional holes,and the phenomenon of suction and card drilling is rare,and the tunneling speed is improved.
引文
[1] 黄炳香,程庆迎,陈树亮,等.突出煤层深孔水力致裂驱赶与浅孔抽采消突研究[J].中国矿业大学学报,2013,42(5):701-711.Huang Bingxiang,Cheng Qingying,Chen Shuliang,et al.Study on Deep Hole Hydraulic Fracture Repelling and Outburst Extraction in Outburst Coal Seam[J].Journal of China University of Mining & Technology,2013,42(5):701-711.
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[4] 谢文强,陈珂,李焕.含瓦斯煤层深孔水力致裂增透与浅孔抽采消突技术研究[J].中国煤炭,2012,38(11):85-89.Xie Wenqiang,Chen Ke,Li Huan.Study on deep-hole hydraulic fracturing anti-reflection and shallow hole extraction and outburst technology in gas-bearing coal seam[J].China Coal,2012,38(11):85-89.
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[8] 陈珂,贾松磊,卢全督,等.低透突出煤层深孔水力致裂增透与浅孔抽采联合消突技术应用[J].中国安全生产科学技术,2013,9(5):39-44.Chen Ke,Jia Songlei,Lu Quandu,et al.Application of deep-dissipation coal seam deep-hole hydraulic fracturing anti-reflection and shallow hole extraction combined with outburst technology[J].Journal of Safety Science and Technology,2013,9(5):39-44.
[9] 阙梦辉.基于高压电脉冲水压致裂的煤层瓦斯致裂增透效果研究[D].包头:内蒙古科技大学,2014.
[10] 刘高峰,翁红波,宋志敏,等.煤层气井水力压裂效果评价与消突时间预测研究[J].河南理工大学学报(自然科学版),2015,34(6):753-758.Liu Gaofeng,Weng Hongbo,Song Zhimin,et al.Evaluation of hydraulic fracturing effect and prediction of outburst time in coalbed methane wells[J].Journal of Henan Polytechnic University(Natural Science),2015,34(6):753-758.
[11] 张国华.本煤层水力压裂致裂机理及裂隙发展过程研究[D].阜新:辽宁工程技术大学,2004.
[12] 田坤云,郑吉玉.顶板致裂增大煤层透气性技术试验研究[J].辽宁工程技术大学学报(自然科学版),2017(8):801-806.Tian Kunyun,Zheng Jiyu.Experimental study on roof gas cracking to increase coal seam permeability[J].Journal of Liaoning Technical University(Natural Science),2017(8):801-806.
[13] 王友壮.岩体钻孔预割缝水力致裂的定向起裂条件研究[D].徐州:中国矿业大学,2014.
[14] 仲晓伟.水力承压爆破技术在高瓦斯矿井坚硬顶板中的实践[J].山东煤炭科技,2017(11):13-14.Zhong Xiaowei.Practice of hydraulic pressure blasting technology in hard roof of high gas mine[J].Shandong Coal Science and Technology,2017(11):13-14.
[15] 周西华,毕建乙,王海东,等.高瓦斯低透气性煤层水力压裂增透技术研究[J].世界科技研究与发展,2015,37(3):243-246.Zhou Xihua,Bi Jianyi,Wang Haidong,et al.Study on hydraulic fracturing and anti-reflection technology for high gas and low permeability coal seam[J].World Sci-Tech R & D,2015,37(3):243-246.
[2] 苏畅,侯嘉颖.水力压裂瓦斯驱替机理研究及工程实践[J].煤炭技术,2017,36(6):206-208.Su Chang,Hou Jiaying.Mechanism research and engineering practice of hydraulic fracturing gas displacement[J].Coal Technology,2017,36(6):206-208.
[3] 付江伟,王公忠,李鹏,等.顶板水力致裂抽采瓦斯技术研究[J].中国安全科学学报,2016,26(1):109-115.Fu Jiangwei,Wang Gongzhong,Li Peng,et al.Research on roof hydraulic fracturing and gas extraction technology[J].China Safety Science Journal,2016,26(1):109-115.
[4] 谢文强,陈珂,李焕.含瓦斯煤层深孔水力致裂增透与浅孔抽采消突技术研究[J].中国煤炭,2012,38(11):85-89.Xie Wenqiang,Chen Ke,Li Huan.Study on deep-hole hydraulic fracturing anti-reflection and shallow hole extraction and outburst technology in gas-bearing coal seam[J].China Coal,2012,38(11):85-89.
[5] 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,2017,45(6):67-72.He Chao.Gas control of low permeability coal seam based on deep hole cracking and anti-reflection technology of carbon dioxide[J].Coal Science and Technology,2017,45(6):67-72.
[6] 林艳东.水力致裂增透技术在瓦斯抽采中的应用[J].能源技术与管理,2017,42(3):44-45.Li Yandong.Application of hydraulic fracturing and anti-reflection technology in gas drainage[J].Energy Technology and Management,2017,42(3):44-45.
[7] 翁红波.煤层气井水力压裂效果评价与消突时间预测研究[D].焦作:河南理工大学,2015.
[8] 陈珂,贾松磊,卢全督,等.低透突出煤层深孔水力致裂增透与浅孔抽采联合消突技术应用[J].中国安全生产科学技术,2013,9(5):39-44.Chen Ke,Jia Songlei,Lu Quandu,et al.Application of deep-dissipation coal seam deep-hole hydraulic fracturing anti-reflection and shallow hole extraction combined with outburst technology[J].Journal of Safety Science and Technology,2013,9(5):39-44.
[9] 阙梦辉.基于高压电脉冲水压致裂的煤层瓦斯致裂增透效果研究[D].包头:内蒙古科技大学,2014.
[10] 刘高峰,翁红波,宋志敏,等.煤层气井水力压裂效果评价与消突时间预测研究[J].河南理工大学学报(自然科学版),2015,34(6):753-758.Liu Gaofeng,Weng Hongbo,Song Zhimin,et al.Evaluation of hydraulic fracturing effect and prediction of outburst time in coalbed methane wells[J].Journal of Henan Polytechnic University(Natural Science),2015,34(6):753-758.
[11] 张国华.本煤层水力压裂致裂机理及裂隙发展过程研究[D].阜新:辽宁工程技术大学,2004.
[12] 田坤云,郑吉玉.顶板致裂增大煤层透气性技术试验研究[J].辽宁工程技术大学学报(自然科学版),2017(8):801-806.Tian Kunyun,Zheng Jiyu.Experimental study on roof gas cracking to increase coal seam permeability[J].Journal of Liaoning Technical University(Natural Science),2017(8):801-806.
[13] 王友壮.岩体钻孔预割缝水力致裂的定向起裂条件研究[D].徐州:中国矿业大学,2014.
[14] 仲晓伟.水力承压爆破技术在高瓦斯矿井坚硬顶板中的实践[J].山东煤炭科技,2017(11):13-14.Zhong Xiaowei.Practice of hydraulic pressure blasting technology in hard roof of high gas mine[J].Shandong Coal Science and Technology,2017(11):13-14.
[15] 周西华,毕建乙,王海东,等.高瓦斯低透气性煤层水力压裂增透技术研究[J].世界科技研究与发展,2015,37(3):243-246.Zhou Xihua,Bi Jianyi,Wang Haidong,et al.Study on hydraulic fracturing and anti-reflection technology for high gas and low permeability coal seam[J].World Sci-Tech R & D,2015,37(3):243-246.