永定庄3号煤层瓦斯地质规律研究

A Study on Gas Geological Regularity of No.3 Coal Seam of Yong Dingzhuang

以永定庄3号煤层为背景,介绍了断层和褶皱对瓦斯赋存的影响,然后又探讨了煤的变质程度和陷落柱对瓦斯的影响,最后通过对原始瓦斯的测定和瓦斯含量分布规律两方面进行研究分析,得出了煤层瓦斯的含量分布规律为:测试区域3号煤层处于甲烷带;煤层瓦斯含量(W)与埋藏深度(H)之间有较大的联系。

This paper takes No. 3 coal seam of Yong Dingzhuang as an example to introduce the influence of fault and drape to the gas bearing and discusses the influence of the metamorphic grade of the coal and collapse column to the gas.In the end,by testing the original gas and analyzing the regularity of distribution of gas,it draws a conclusion of the regularity of distribution of gas in coal seam： the testing field,No. 3 coal seam,is located on the methane zone; the gas level（ W） in coal seam has a lot to do with its depth in coal seam（ H）.