| 红阳二矿水力冲孔增透技术研究及应用 |
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| 引用本文： | 王庆国,司俊廷,刘洋,李滨.红阳二矿水力冲孔增透技术研究及应用[J].中州煤炭,2018,0(8):33-36. |
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| 作者姓名： | 王庆国 司俊廷 刘洋 李滨 |
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| 作者单位： | （1.沈阳焦煤股份有限公司 红阳二矿，辽宁 沈阳 110000； 2.瓦斯灾害监控与应急技术国家重点实验室，重庆 400037；3.中煤科工集团 重庆研究院有限公司，重庆 400037） |
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| 摘 要： | 针对红阳二矿12煤层透气性低、底抽巷穿层钻孔瓦斯抽采效率偏低难以满足预抽要求的情况，基于水力冲孔卸压增透机理，提出采用水力冲孔和普通钻孔预抽相结合的钻孔布置方式进行高效抽采。研究结果表明:水力冲孔在低透突出煤层区域瓦斯抽采消突措施中应用效果显著，采取水力冲孔措施的34 d内，钻孔的平均瓦斯抽采浓度是普通钻孔的2.5倍，平均瓦斯抽采纯量是普通钻孔的4.4倍。
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| 关 键 词： | 低透煤层 水力冲孔 卸压增透 出煤量 |
Research and application of hydraulic flushing technology in Hongyang No.2 Coal Mine |
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| Wang Qingguo,Si Junting,Liu Yang,' target='_blank'>,Li Bin. Research and application of hydraulic flushing technology in Hongyang No.2 Coal Mine[J].Zhongzhou Coal,2018,0(8):33-36. |
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| Authors: | Wang Qingguo Si Junting Liu Yang ' target='_blank'> Li Bin |
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| Affiliation: | （1.Hongyang No.2 Coal Mine，Shenyang Coking Coal Co.，Ltd.，Shenyang 110000，China；2.State Key Laboratory of The Gas Disaster Detecting，Preventing and Emergency Controlling，Chongqing 400037，China；3.China Coal Technology and Engineering Group Chongqing Research Institute，Chongqing 400037，China） |
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| Abstract: | The permeability of No.12 coal mine in Hongyang No.2 Coal Mine is low and it′s difficult to meet the requirement of pre-pumping by low efficiency of gas extraction.Based on hydraulic punching and unloading，the extraction method was combined with hydraulic punching and ordinary drilling.The experimental results showed that:it is good to use hydraulic punching technology in low permeability outburst coal seam for gas extraction and eliminating outburst risk.In 34 days of hydraulic punch，the average gas extraction concentration of borehole is 2.5 times that of normal drilling，and the average gas flow is 4.4 times that of ordinary borehole. |
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| Keywords: | ,low-permeability coal seams, hydraulic flushing technology, pressure relief and permeability increasing, coal output |
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