Computational modeling of multi-layered reservoirs with unequal initial pressures: development of a new pre-production well test
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A description and verification of a new semi-analytical simulator used to model the wellbore performance of multi-layered reservoirs with unequal initial pressures were presented. The semi-analytical simulator proved to be faster than a conventional three dimensional, finite-difference commercial simulator. Also the amount of information needed to run the model is much reduced. The semi-analytical simulator allows each layer to have different layer properties, different boundary conditions, and different initial pressures.