Abstract: Restricted by experimental equipment, methodologies, long period of experiment, high cost and greater errors, a new linear regression method by using reservoir historical production data is derived to determine the model parameters. The models of productivity prediction and the time of maximum imbibition′s rate are then presented. A real reservoir case is calculated and compared using the method. The results show good agreement with reservoir productivity data, which is of reference to the dynamic study on water flooding production of fractured reservoirs. 
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Key words: fractured reservoirs, imbibitions model, parameters determination, linear regression, production prediction