织纳煤田红梅煤矿瓦斯分布特征及其控制因素研究

Distribution characteristics and its controlling factors of CBM in Hongmei mine, Zhina coalfield, Guizhou Province

为了查明煤层瓦斯赋存的地质规律,探讨其控制因素,基于矿区地质资料和瓦斯化验结果,对贵州省织纳煤田织金矿区红梅煤矿可采煤层瓦斯分布特征进行了研究。研究结果表明,矿区可采煤层基本处于沼气带,且属于富甲烷煤层;在垂向上,煤层呈波动式,体现了沉积-水文-构造地质条件耦合作用;在平面上,具有向斜控气特征,正是在埋深背景上构造-水文地质条件耦合作用的结果。

In order to find out the geological law of CBM occurrence and discuss its control factors, based on the geological data and gas test results of the mining area, the CBM distribution characteristics of the minable coal seam in Hongmei mine, Zhijin mining area of Zhina coalfield, Guizhou Province were studied. The research results show that the minable coal seam is basically in the biogas zone and belongs to the methane-rich coal seam. In the vertical direction, the coal seam is undulating, which reflects the coupling action of sediment-hydro-tectonic geological conditions. On the plane,it has syncline gas-control characteristics, which is the result of structural-hydro geological coupling on the background of burial depth.