Henan Coal Storage and Distribution Trading Center Co., Ltd.
Henan Province Geology Research Institute

瓦斯地质研究是有效指导矿井瓦斯预测和防治的重要基础,查明矿区内瓦斯赋存规律对煤矿高效绿色安全生产具有重要意义。基于陈召煤矿外围区块煤炭勘查数据和煤层样品实验测试结果,采用实验室测试和瓦斯地质分析的方法,研究了陈召煤矿外围区块可采煤层及瓦斯地质特征,探讨了地质构造、煤层顶底板、水文地质条件和岩浆岩对瓦斯赋存的影响。结果表明:研究区内一5和二1煤层瓦斯自然成分均为二氧化碳~氮气带;一5和二1煤层瓦斯含量分别为0~0.05m3/t和0~0.06m3/t,全区内瓦斯含量较低,瓦斯赋存规律性不明显;断层和岩浆岩是影响本区瓦斯赋存的重要因素。

Gas geological research is an important foundation for effectively guiding the prediction and prevention and control of gas in mines. Identifying the occurrence laws of gas in mine areas is of great significance for efficient, green, and safe production in coal mines. Based on the coal exploration data and experimental test results of coal seam samples in the peripheral blocks of Chenzhao Coal Mine, laboratory testing and gas geological analysis methods are used to study the geological characteristics of minable coal seams and gas in the peripheral blocks of Chenzhao Coal Mine. The influence of geological structure, coal seam roof and floor, hydrogeological conditions, and magmatic rock on gas occurrence is discussed. The results show that natural ingredients of gas in one5 and two1 coal seams in the study area are both carbon dioxide-nitrogen zone; the coal seam gas content in one5 and two1 coal seams are 0-0.05 m3/t and 0-0.06 m3/t, respectively. The gas content in the entire area is relatively low, and the regularity of gas occurrence is not obvious; faults and magmatic rocks are important factors affecting the occurrence of gas in this area.