| 松软低透气性煤层水力压裂技术研究 |
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| 引用本文： | 李华超,李学龙,张亮. 松软低透气性煤层水力压裂技术研究[J]. 煤炭技术, 2014, 0(10): 16-19 |
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| 作者姓名： | 李华超 李学龙 张亮 |
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| 作者单位： | 河南大有能源股份有限公司新安煤矿;中国矿业大学安全工程学院 |
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| 摘 要： | 针对新安煤矿二1煤层松软低透气性的特点,为增强煤层透气性,提高抽采效率,降低突出危险性,研究了水力压裂技术在松软低透气性煤层中的消突工艺及应用效果。研究表明,实施水力压裂后,煤层透气性显著增加,抽采瓦斯浓度增大105倍,抽采瓦斯流量增大86~204倍,瓦斯的抽采浓度和流量曲线呈现"升-降-升-稳定"的趋势,且稳定抽采持续时间长。
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| 关 键 词： | 软煤 低透气性 水力压裂 瓦斯抽采 |
Research on Hydraulic Fracturing in Low Permeability Soft Coal Seam |
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| LI Hua-chao;LI Xue-long;ZHANG Liang. Research on Hydraulic Fracturing in Low Permeability Soft Coal Seam[J]. Coal Technology, 2014, 0(10): 16-19 |
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| Authors: | LI Hua-chao LI Xue-long ZHANG Liang |
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| Affiliation: | LI Hua-chao;LI Xue-long;ZHANG Liang;Xin’an Coal Mine,Henan Dayou Energy Company Limted;Safety Engineering School,China University of Mining and Technology; |
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| Abstract: | According to the low permeability characteristics of two-one coal seam in Xin'an coal mine, to enhance the coal seam permeability, improve extraction efficiency and reduce the risk of prominent, studied the technology of eliminating outburst and application effect by hydraulic fracturing technology in soft and low permeability coal seam. Results show that there is a significant increase in coal seam permeability after conducting hydraulic fracturing technology. Drained gas concentration increases 105 times, drained gas flow rate increases 86~204 times. The gas extraction curves of concentration and flow rate shows "up- down- upstable" trend,and the stable extraction last for a long time. |
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| Keywords: | soft coal low permeability hydraulic fracturing gas control |
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