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根据煤层气动态模型，提出了煤层中气、水渗流的数学描述及相应的求解方法。运用这一方法对影响煤层气生产的因素及其敏感性进行了研究。在各影响因素中，渗透率、供给半径对煤层气井水产量的影响较大；兰格缪尔体积常数、渗透率、供给半径和井底流压对煤层气井气产量影响较大，对煤层的平均压力也有一定影响，其中以供给半径的影响最大。
According to the dynamic model of coalbed methane, the mathematical description of gas and water seepage in coal seam and the corresponding solution method are proposed. This method has been used to study the factors influencing coalbed methane production and its sensitivity. Among all influencing factors, the permeability and the supply radius have a great influence on the water production of coalbed methane wells; Langmuir volume constants, permeability, supply radius and bottom hole flow pressure have a great influence on gas well gas production, Pressure also has a certain impact, of which the supply radius of the greatest impact.