| 煤层钻孔周围瓦斯压力分布的流量反演分析法 |
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| 引用本文： | 王克全.煤层钻孔周围瓦斯压力分布的流量反演分析法[J].西安科技大学学报,1993(4). |
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| 作者姓名： | 王克全 |
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| 作者单位： | 西安矿业学院煤科总院重庆分院 |
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| 摘 要： | 用微积分方法建立了钻孔瓦斯涌出量与孔壁流速及时间的关系式;在Darcy定律的基础上,运用流量反演分析法,得出了瓦斯流动的微分方程和瓦斯压力的解析表达式。该结果为研究瓦斯流动及钻孔周围瓦斯压力分布随诸参数变化提供了较为简捷的方法。
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| 关 键 词： | 钻孔 瓦斯压力 流量反演分析 瓦斯涌出量 |
BACK ANALYSIS METHOD OF GAS FLOW FOR DETERMINING GAS PRESSURE DISTRIBUTION AROUND BORE IN COAL SEAM |
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| Wang Kequan.BACK ANALYSIS METHOD OF GAS FLOW FOR DETERMINING GAS PRESSURE DISTRIBUTION AROUND BORE IN COAL SEAM[J].JOurnal of XI’an University of Science and Technology,1993(4). |
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| Authors: | Wang Kequan |
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| Institution: | Wang Kequan |
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| Abstract: | The formula established in the paper describes the relation of gas emission amount from bore, gas flow velocity along the wall of bore and time b means of differential and integral caculus. The differential equation of gas flow and the analytical expression of gas pressure are obtained by using back analysis method of gas flow on the basis of Datcy law. It provides a simple method for researchers in this respect. |
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| Keywords: | bore gas pressure back analysis of gas flow gas emission amount |
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