淮南煤田煤体结构分布特征及其控制因素探讨

煤体结构是影响煤层气渗透性的重要因素，查明煤体结构分布规律对于煤层气开发意义重大。通过综合分析煤层观测、勘探和开采资料，将煤体结构分为块煤、碎块煤和粉沫煤3种类型。初步查明了淮南煤田的煤体结构分布特征，并对其控制因素进行了探讨。结果表明，该区煤体结构以碎块煤和粉沫煤为主，块煤分布较少，煤体结构分布主要受到褶皱和断层等煤田构造因素的直接控制。

Distribution regularities and control factors of coal body texture in Huainan Coal Field

Coal-body texture is an important factor that affects the permeability of coalbed methane.To find out the distribution regularities of coal-body texture have great significance for exploitation of coal methane.Based on synthetical analysis of coal seam observation,exploration and mining exposure data,the authors have divided coal-body texture into three types,i.e.lump coal,piece coal and powder coal,and have fundamentally found out the distribution characteristics of coal-body texture in Huainan coal field,as well as its control factors.As a result,piece coal and powder coal are the most important types of coal body texture in this area,and lump coal is comparatively sparse.Type distribution of coal-body texture is chiefly controlled by coalfield structure such as fold and fault.