针对沁水盆地柿庄南区块部分煤层气井煤粉产出严重的问题,利用测井曲线和构造曲率识别研究区煤层气井的煤体结构，分析不同煤体结构煤层气井煤粉质量浓度、粒度、形态等产出特征。研究发现：测井参数与构造曲率两者的判识结果匹配程度高，研究区南部构造曲率值低，以原生−碎裂结构煤为主，断层发育附近构造曲率值高，以碎裂−糜棱结构煤为主,煤粉特征与煤体结构之间存在良好的相关性；原生结构煤质量浓度为0.271 g/L，碎裂结构煤质量浓度为0.634 g/L，碎粒−糜棱结构煤质量浓度为4.872 g/L，产出煤粉的粒度主要在1～100 μm之间；随煤体结构破碎，1～10 μm煤粉逐渐增加，大于1 000 μm煤粉逐渐减少；受构造及排采影响，煤粉形态逐渐趋于球状、片状集合体。

For the serious problems of pulverized coal production in some coalbed methane wells in Shizhuang Block in the south of Qinshui Basin, this study recognizes the coal structure of CBM wells in the study area by using the integrated identification method of the well-logging curve and the tectonic curvature, and analyzes the output characteristics of different CBM wells, such as the mass concentration, particle size, and morphology of the coal powder. It is found that the identification results of logging parameters and tectonic curvature are well matched, in the southern part of the study area, the structural curvature value is low, and the primary and cataclastic structural coal is the main one, while the structural curvature value near the fault development is high, and the cataclastic and mylonitic structural coal is the main one, there is a good correlation between the characteristics of coal powder and the coal body structure. The concentration of primary structural coal in Shizhuang south CBM well is 0.271 g/L, the mass concentration of fractured structural coal is 0.634 g/L, and the concentration of granulated-mylonitic structural coal is 4.872 g/L. The particle size of the output coal powder is mainly in the range of 1-100 μm; the pulverized coal with particle size of 1-10 μm gradually increases with the crushing of the coal structure, and the pulverized coal with particle size more than 1 000 μm gradually decreases. Under the influence of structure and drainage, the shape of pulverized coal gradually tends to be spherical and flaky aggregate.