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Kalman filter is a set of mathematical equations that provide an efficient and recursive calculation of the means to estimate the state of a process, in a way that minimizes the average square error. The filter is very powerful in several aspects: supports estimations of past, present, and future states, and it can do so even when the precise nature of the shaped system is unknown. The concept of "closed loop" in Reservoir management is currently considered significant in the oil industry. The technique of updatin...