余吾3~#煤层瓦斯赋存主控因素研究

Study on Main Controlling Factors of Gas Occurrence in Yuwu 3~# Coal Seam

为了研究余吾3^#煤层瓦斯赋存的主控因素,以煤层区域构造控制作用为基础,结合3DMine矿业工程软件绘制三维瓦斯地质图。结果表明,断层组合有利于瓦斯的聚集;在大断层、背斜轴部不利于瓦斯的赋存,在小断层、向斜轴部有利于瓦斯的积聚;瓦斯压力、瓦斯含量随着埋深的增加而增加;埋深是影响余吾3^#煤层瓦斯赋存的关键因素。

In order to study the main controlling factors of gas occurrence in Yuwu 3#coal seam,a three-dimensional gas geological map was drawn based on the regional tectonic control of coal seam and combined with 3D mine mining engineering software.The results show that the combination of faults is beneficial to gas accumulation;in large faults and anticline axes,it is not conducive to gas accumulation;in small faults and syncline axes,it is conducive to gas accumulation;gas pressure and gas content increase with the increase of burial depth;burial depth is the key factor affecting gas occurrence in Yuwu 3#coal seam.