A new dynamic forecast model of coalbed methane production

By using the theory of gray system and time series analysis a combined model of dimension-fixed and recursion-compensated gray-time series for the purpose of predicating the yield of coalbed methane is established.The application of this new model in the southern Qinshui basin shows that this model can fit the historical data precisely,then it can be used for predicting the future data of mid-long term well production