镇雄县熊洞煤矿煤层气赋存特征及影响因素

CBM Hosting Features and Impacting Factor in Xiongdong Coalmine,Zhenxiong County

镇雄县煤炭、煤层气资源丰富,充分利用熊洞煤矿煤矿瓦斯、煤层气实测资料,通过对研究区地质构造、煤层埋深及水文地质条件的分析,初步得出以古向斜轴部及压扭性断层周边煤层气含量高,运动的地下水溶解、运移甲烷,煤层气含量低,滞流的地下水封堵煤层气,含气量高的结论。建议熊洞煤矿开展煤层气勘探开发工作,获取评价参数并进一步深化煤储层煤体结构等研究。

The Zhenxiong County has abundant coal and CBM resources. Fully used coalmine gas, CBM measured data from the Xiongdong coalmine, through analysis of geological structure, coal buried depth and hydrogeological condition in the study area, initially worked out conclusion of CBM content is high in old syncline axis and compresso-shear fault periphery;while running groundwater can solve, migrate methane and cause low CBM content, stagnant groundwater can plug CBM, thus high content. It is suggested that to carry out CBM exploration and exploitation in Xiongdong coalmine, obtain assessment parameters and further deepening studies on coal reservoir coal mass structure etc.