| 钻孔周围瓦斯压力分布及抽放参数研究 |
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| 引用本文： | 刘海瑞.钻孔周围瓦斯压力分布及抽放参数研究[J].中州煤炭,2020,0(4):71-73，82. |
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| 作者姓名： | 刘海瑞 |
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| 作者单位： | （河南能源化工集团 永煤公司车集煤矿，河南 永城 476600） |
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| 摘 要： | 为了分析钻孔抽采瓦斯运移规律,理论分析了煤岩体瓦斯运移规律计算方程,依据此建立了钻孔抽采瓦斯模型,然后数值模拟了不同抽采时间下瓦斯压力分布、不同理论下钻孔瓦斯有效抽采半径以及不同抽放时间下煤层渗透率变化规律。研究为矿井瓦斯抽放提供了借鉴。
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| 关 键 词： | 钻孔抽采 瓦斯运移规律 瓦斯压力 有效抽采半径 煤层渗透率 |
Study on gas pressure distribution and extraction parameters around boreholes |
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| Liu Hairui. Study on gas pressure distribution and extraction parameters around boreholes[J].Zhongzhou Coal,2020,0(4):71-73，82. |
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| Authors: | Liu Hairui |
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| Affiliation: | （Juji Coal Mine，Yongcheng Coal Company，Henan Energy and Chemical Industry Group，Yongcheng 476600，China） |
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| Abstract: | In order to analyze gas migration law of borehole drainage,the calculation equation of gas migration law of coal and rock mass was theoretically analyzed.According to this,the gas model of borehole drainage was established,and then the gas pressure distribution,effective gas extraction radius of borehole under different theory and the change law of coal seam permeability under different drainage time were numerically simulated.The study provided a reference for mine gas extraction. |
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| Keywords: | ,borehole extraction, gas migration law, gas pressure, effective extraction radius, coal seam permeability |
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