| 赤孟博，边小涛 |
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| 引用本文： | 赤孟博,边小涛.赤孟博，边小涛[J].中州煤炭,2019,0(4):60-62. |
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| 作者姓名： | 赤孟博 边小涛 |
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| 作者单位： | （河南永锦能源有限公司 云盖山煤矿二矿，河南 禹州 461670） |
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| 摘 要： | 瓦斯事故严重影响了煤矿的安全生产，瓦斯抽放是解决煤矿瓦斯事故重要的手段。为了对钻孔抽放煤层瓦斯运移规律进行深入研究，采用理论分析和Fluent数值模拟相结合的方法，在理论上研究了煤层瓦斯运移基本规律，主要研究了瓦斯在煤层中的运动方程、瓦斯的流动类型以及瓦斯流动的数学模型，然后采用Fluent数值模拟软件，模拟分析了瓦斯抽钻孔在不同抽放负压、不同抽放时间下的煤层压力分布变化情况。研究为瓦斯抽放钻孔合理参数设计提供理论基础。
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| 关 键 词： | 瓦斯运移规律 Fluent数值模拟 介质质量守恒 抽放负压 抽放半径 煤层压力分布 |
Study on gas movement law of coal seam drained by boreholes |
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| Chi Mengbo,Bian Xiaotao. Study on gas movement law of coal seam drained by boreholes[J].Zhongzhou Coal,2019,0(4):60-62. |
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| Authors: | Chi Mengbo Bian Xiaotao |
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| Affiliation: | （Yungaishan No.2 Coal Mine，Henan Yongjin Energy Co.，Ltd.，Yuzhou 461670，China） |
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| Abstract: | Gas accidents seriously affect the safety of coal mine production，gas drainage is an important means to solve coal mine gas accidents.In order to deeply study the law of gas migration in coal seam drained by boreholes，the basic law of gas migration in coal seam was studied theoretically by combining theoretical analysis with fluent numerical simulation.The movement equation of gas in coal seam，the flow type of gas and the mathematical model of gas flow were mainly studied.Then the gas was simulated and analyzed by using fluent numerical simulation software.The variation of pressure distribution in coal seam under different drainage negative pressure and different drainage time.The study provided a theoretical basis for reasonable parameter design of gas drainage boreholes. |
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| Keywords: | ,gas migration law, Fluent numerical simulation, medium mass conservation, pumping negative pressure, pumping radius, coal seam pressure distribution |
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