| 新密煤田瓦斯动力现象分析 |
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| 引用本文： | 白新华,贾天让,张子敏,张玉贵,李普.新密煤田瓦斯动力现象分析[J].煤田地质与勘探,2009,37(4):19. |
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| 作者姓名： | 白新华 贾天让 张子敏 张玉贵 李普 |
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| 作者单位： | 1. 河南省煤层气开发利用有限公司, 河南 郑州 450016; |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 为研究新密煤田发生低瓦斯含量、低瓦斯压力瓦斯动力现象的原因,解决低指标瓦斯动力现象给生产带来的危害,运用区域构造演化理论分析了新密煤田自印支期至今的构造演化,统计分析了区域内38次瓦斯动力现象和167个采样地点的煤岩坚固性系数f值,结合《防治煤与瓦斯突出细则》及常规实践经验,与新密煤田瓦斯动力现象中煤层瓦斯含量、瓦斯压力做了对比。结果表明,区域内的瓦斯动力现象表现为低瓦斯含量、低瓦斯压力,f值多在0.3以下;基于综合假说机理的研究表明,构造煤普遍发育、煤岩坚固性系数f值小是该现象的深层原因。
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| 关 键 词： | 新密煤田 区域构造演化 瓦斯动力现象 坚固性系数 |
| 收稿时间： | 2008-10-31 |
Analysis of coal gas dynamic phenomenon in Xinmi coalfield |
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| BAI Xinhua,JIA Tianrang,ZHANG Zimin,ZHANG Yugui,LI Pu.Analysis of coal gas dynamic phenomenon in Xinmi coalfield[J].Coal Geology & Exploration,2009,37(4):19. |
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| Authors: | BAI Xinhua JIA Tianrang ZHANG Zimin ZHANG Yugui LI Pu |
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| Institution: | 1. Henan Provincial Coal Bed Methane Development and Utilization Company Ltd., Zhengzhou 450016, China;2. Institute of Gas-geology, Henan Polytechnic University, Jiaozuo 454003, China;3. Gas-geology Division, China Coal Society, Jiaozuo 454003, China |
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| Abstract: | In order to study the dynamic phenomenon of low gas content and low gas pressure in Xinmi coalfield,and solve the problem of the damage caused by low index dynamic phenomenon,the paper analyzed the tectonic evolution since Indo-China period based on the theory of regional tectonic evolution,and statistically analyzed 38 coal-gas dynamic events and 167 consistent coefficient f in Xinmi coalfield by combination with Rules for Preventing Coal-Gas Outburst and practical experience.The results showed that dynami... |
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| Keywords: | Xinmi coalfield regional tectonic evolution coal-gas dynamic phenomenon consistent coefficient |
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