煤储层渗透性是影响煤层气开发选区和产量最重要的因素,运用资料查阅、文献综合研究等方法,分析了煤层变质、煤层厚度、煤体结构、构造曲率等因素与煤储层渗透率之间的耦合关系,结果表明,煤储层具有双重孔隙结构,割理裂隙的发育程度直接影响煤层渗透率的大小,天然裂隙的发育密度与煤岩类型条带或分层厚度呈负相关。 The permeability of coal reservoirs is the most important factor affecting CBM development constituency and output. By using data access and comprehensive literature research, the coal seams metamorphism, coal seam thickness, coal body structure and tectonic curvature are analyzed. The results show that the coal reservoir has a double porosity structure. The development of cleat fractures directly affects the permeability of the coal seam. The developmental density of natural fractures is negatively correlated with the type or stratification of coal strata.