安鹤煤田伦掌井田二_1煤层瓦斯赋存特征研究  

Study on Coal Ⅱ1 Gas Hosting Characteristics in Lunzhang Minefield

作　　者：马黎明[1] 张小连[1] 熊亮[2] 

机构地区：[1]河南省煤田地质局三队,郑州450052 [2]河南省煤田地质局,郑州450052

出　　处：《中国煤炭地质》2016年第9期43-47,共5页Coal Geology of China

摘　　要：河南省安鹤煤田伦掌井田二_1煤层瓦斯含量高,对其进行研究对下一步煤层气的开发和矿井生产具有重要意义。根据勘探阶段资料,对二_1煤层瓦斯成分及含量的控制因素和变化规律进行了系统研究,结果表明,二_1煤埋藏深,煤层厚,瓦斯含量高,为22 m^3/t左右,瓦斯成分甲烷(CH_4)在95%以上,具有较强的甲烷吸附和储集能力,压力在0.98~2.16 MPa。二_1煤层瓦斯赋存特征主要受煤层埋深、煤厚、地质构造、围岩、顶板岩性以及排放条件等因素的控制。结合邻近生产矿井二_1煤层瓦斯的资料,预测出本区二_1煤层瓦斯突出危险性。通过对二_1煤层瓦斯赋存特征的研究,为瓦斯地质灾害的防范治理、煤层气的有效利用提供依据,降低煤矿瓦斯事故的发生,做到安全文明生产。Coal II1 gas content is high in the Lunzhang minefield, Anhe coalfield, Henan Province; studies on it have major significance to next CBM exploitation and coalmine production. Based on data from exploration have carried out systematic researches on controlling factors and variation pattern of coal II1 gas composition and content. The result has shown that coal II1 is deeply buried and thick. Gas content is high, generally about 22 m3/t, methane （CH4） proportion over 95 %; its methane adsorption and accumulation capacities are strong, with pressure 0.98-2.16 MPa. Gas hosting characteristics are mainly controlled by factors including coal buried depth, thickness, geological structure, surrounding rocks, roof lithology and drainage condition. Combined with coal II1 gas information from neighboring production coalmines has predicted coal II 1 gas burst hazard. The study has provided favorable terms for gas geological hazard prevention and control, CBM economizing, lowering down gas accidents, achieving safe and civilized production.

关 键 词：二1煤层瓦斯 赋存特征 地质构造 煤层埋深 伦掌井田 

分 类 号：TD712.2[矿业工程—矿井通风与安全]