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| 高压水射流技术在低透气性松软煤层瓦斯抽放中的实验研究 | |
| 引用本文： | 杨凯,李绍泉,吴桂义. 高压水射流技术在低透气性松软煤层瓦斯抽放中的实验研究[J]. 煤炭技术, 2011, 30(6) |
| 作者姓名： | 杨凯 李绍泉 吴桂义 |
| 作者单位： | 1. 贵州大学矿业学院,贵阳550003;贵州省非金属矿产资源综合利用重点实验室,贵阳550003 2. 贵州省矿山安全科学研究院,贵阳,550025 |
| 基金项目： | 贵州省科技厅重大专项计划项目 |
| 摘 要： | 针对低透气性松软煤层中瓦斯抽放效率低的问题,采用高压水射流技术在煤层中进行了增加煤层透气性的实验。实验采用在钻场瓦斯抽放钻孔中进行高压水射流割缝的措施,把煤体割缝破碎后,进行封孔抽放。实验结果表明这个措施能有效提高瓦斯抽放效率,提高煤层的透气性,使抽放后煤体残存瓦斯量降得更低,也减少了瓦斯灾害事故的发生概率 |
| 关 键 词： | 高压水射流 低透气性 瓦斯抽放 |
Experimental Research on High Pressure Water Jet Technology in Low Permeability Soft Coal Seam Gas Drainage |
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| YANG Kai,LI Shao-quan,WU Gui-yi. Experimental Research on High Pressure Water Jet Technology in Low Permeability Soft Coal Seam Gas Drainage[J]. Coal Technology, 2011, 30(6) | |
| Authors: | YANG Kai LI Shao-quan WU Gui-yi |
| Affiliation: | YANG Kai1,2,LI Shao-quan3,WU Gui-yi1,2(1.School of Mining,Guizhou University,Guiyang 550003,China,2.Guizhou Provincial Key Lab of Multipurpose Utiliazation of Non-melallic Minerals Resources,3.Guizhou Mine Safety Research Institute,Guiyang 550025,China) |
| Abstract: | Drect to the problem of low efficiency in low permeability soft coal seam gas drainage,by using high pressure water jet technology,the experiment did in coal seam to increase permeability.In the experiment,borehole gas drainage was used with high pressure water jet cutting after crushing adopts hole drainage.The experimental results show that by the measures can effectively improve the efficiency of gas drainage,improve the permeability of coal,make coal gas remaining quantity dropt lower after drainage,and... |
| Keywords: | high pressure water jet low permeability gas drainage |
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