河南胡襄煤田二_1煤层地质特征及煤层气开发潜力分析  

Coal Ⅱ1 Geological Features and CBM Exploitation Potential Analysis in Huxiang Coalfield, Henan

作　　者：许亚坤[1] 秦仁赞[1] 苗书雷[1] 

机构地区：[1]河南省地质矿产勘查开发局第四地质矿产调查院,河南商丘476000

出　　处：《中国煤炭地质》2015年第10期24-28,共5页Coal Geology of China

摘　　要：胡襄煤田二1煤层为主要可采煤层,分为二12、二11两层。通过对煤储层地质特征及煤层气成藏地质条件分析,得出:1煤层变质程度较高且煤质良好,有利于煤层气的生成;2煤层含气量较大,渗透性好,盖层比较致密,水动力条件比较弱,为煤层气富集、运移渗流和实施增产措施提供了有利条件;3通过计算,胡襄煤田煤层气资源总量为468.84×108m3,属大型煤层气田,具一定的煤层气开发前景。The coal Ⅱ1 in the Huxiang coalfield is the main developed coal seam and can be subdivided intoⅡ12 and Ⅱ11. Through coal reservoir geological features and CBM reservoiring geological condition analysis can be seen： 1 Coal seam metamorphism degree is high and coal quality excellent, thus in favor of CBM generation. 2 Coal seam methane content is large, permeability good, overburden rather compact, and weaker hydrodynamic condition have provided favorable terms for CBM enrichment, migration seepage and well stimulation put into effect. 3 Estimated total CBM resources in Huxiang coalfield is 468.84×108m3, thus a large-scale CBM-field with certain exploitation prospect.

关 键 词：胡襄煤田 煤层气 地质特征 开发潜力 

分 类 号：P618.11[天文地球—矿床学]