摘要:The Ensemble Kalman Filter (EnKF) has gain popularity as a methodology for real time updates of reservoir models. A sample of models is updated whenever observation data available. Successful application of EnKF to estimate reservoir properties has been reported. A flow modeling is missing in this research area. This paper presents the applicability of EnKF in flow modeling for three cases: infinite reservoir, bounded reservoir and one dimensional composite reservoir. The solution of flow equation was derived and used as a modeling component of state space modeling of Kalman filter updating formula. This three reservoir models shows that the EnKF methodology can be used for updating the reservoir models.