| 高压脉动水力压裂卸压增透技术及应用 |
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| 引用本文： | 林柏泉,李子文,翟成,比强,温永宇. 高压脉动水力压裂卸压增透技术及应用[J]. 采矿与安全工程学报, 2011, 28(3): 452-455 |
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| 作者姓名： | 林柏泉 李子文 翟成 比强 温永宇 |
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| 作者单位： | 1. 中国矿业大学煤炭资源与安全开采国家重点实验室,安全工程学院,江苏徐州221008
2. 铁法煤业(集团)有限责任公司,辽宁调兵山,112700 |
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| 基金项目： | 国家重点基础研究发展计划资助(973)项目(2011CB201205); 国家自然科学基金项目(51074161); 煤炭资源与安全开采国家重点实验室自主研究课题项目(SKLCRSM08x03) |
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| 摘 要： | 为了改进现有卸压增透技术,解决目前煤矿区域瓦斯治理存在的问题,在水力压裂技术的基础上,提出了高压脉动水力压裂卸压增透技术.采用理论分析和现场试验的方法,研究了脉动压力在裂隙中的传播规律以及卸压增透效果.结果表明:脉动水力压裂可以使煤体的某些物理量反复交变,产生疲劳破坏,从而疏通孔隙,提高透气性;脉动压力在24MPa、频率在20Hz时,卸压效果最好;压裂前后抽采体积分数平均增加了264.7%,瓦斯流量增加了245.5%;突出危险性指标q值和S值显著减小,变化幅度降低.该技术可以有效增大单孔影响范围,提高抽采效率,具有广泛的应用前景.
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| 关 键 词： | 瓦斯抽采 卸压增透 脉动 水力压裂 |
Pressure Relief and Permeability-Increasing Technology Based on High Pressure Pulsating Hydraulic Fracturing and Its Application |
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| LIN Bai-quan,LI Zi-wen,ZHAI Cheng,BI Qiang,WEN Yong-yu. Pressure Relief and Permeability-Increasing Technology Based on High Pressure Pulsating Hydraulic Fracturing and Its Application[J]. Journal of Mining and Safety Engineering, 2011, 28(3): 452-455 |
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| Authors: | LIN Bai-quan LI Zi-wen ZHAI Cheng BI Qiang WEN Yong-yu |
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| Affiliation: | LIN Bai-quan1,LI Zi-wen1,ZHAI Cheng1,BI Qiang2,WEN Yong-yu2(1.State Key Laboratory of Coal Resources and Safe Mining,School of Safety Engineering,China University of Mining & Technology,Xuzhou,Jiangsuo 221008,China,2.Tiefa Coal Industry Group Corporation Limited,Diaobingshan,Liaoning 112700,China) |
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| Abstract: | In order to improve the existing pressure relief and permeability increasing technologies,high pressure pulsating hydraulic fracturing technology was put forward on the basis of hydraulic fracturing to solve the current problems of regional gas control in coal mines.The propagation law of pulsating pressure in fractures and the effect of pressure relief and permeability-increasing were investigated by theoretical analysis and field test.The results show that the pulsating hydraulic fracturing can make some ... |
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| Keywords: | gas extraction pressure relief and permeability improvement pulsating hydraulic fracturing |
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