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煤层气藏是煤层气聚集和进行煤层气资源开发的基本地质单元,煤层气藏的形成条件包括：煤层厚度、煤变质程度、埋藏深度、盖层、地质构造．在淮南煤田划分煤层气藏主要根据地质构造形态和埋藏深度,根据阜凤推覆体和淮南复向斜的次级构造,将淮南煤田划分为蔡家岗等7个煤层气藏；分析了煤层气成藏的动力学机制．煤层气藏所处的构造部位,对煤层气藏的特征具有重要的控制作用．
CBM reservoir is the basic geological unit for CBM accumulation and CBM resource development. The CBM formation conditions include: coal seam thickness, coal metamorphism, burial depth, caprock and geological structure. According to the geological structure and burial depth, the Huainan coalfield is divided into seven coalbed gas reservoirs such as Caijiagang according to the secondary structure of Fufeng nappe and Huainan synclinorium. The characteristics of coalbed methane Kinetic mechanism. The structural parts of the CBM reservoir play an important role in controlling the characteristics of CBM reservoirs.