【摘要】 基于吐哈盆地与粉河盆地(Powder River Basin)的煤层气地质资料,探讨了两盆地地质构造演化特征,对比分析了两盆地煤阶、煤岩、煤质、含气量及饱和度等物性条件,指出了吐哈盆地与粉河盆地在煤层气含量构成、渗透率及水文地质条件等方面的差异。更多还原

【Abstract】 On the basis of studying the geologic data on coalbed methane (CBM) collected from the Tuha Basin in China and the Powder River Basin in America respectively, the geologic-tectonic evolution characteristics of the two basins are discussed; the petrophysical conditions of the coal rank, ingredient, coal quality, CBM content and saturation, etc., of the two basins are contrasted and analyzed; and the differences between the two basins in CBM composition, permeability and hydrogeological condition, etc., are pointed out in the paper. (Financed by the project of the National Natural Science Foundation, No.40372074)更多还原