Metodología experimental para la estimación de permeabilidades relativas en dos y tres fases por medio de ajuste histórico

Abstract

This paper presents the development of a new methodology for relative permeabilities estimation, through the match of the simulation results with the experimental data, obtained from unsteady state displacements. The development of the simulationoptimization tool, in Matlab environment, necessary for the automatic match is presented too. Six unsteady state displacements are performed; four of two-phase and two of three-phase, the experimental data obtained are analyzed using the proposed algorithm. The results from two-phase experiments are compared with those of Sendra software and it is found that the proposed algorithm has a good performance respect to this commercial tool. The results from the three-phase cases show that the algorithm achieves effectively estimate the relative permeability that produce the history match; It is found that there are differences with respect to the estimated curves for two-phase systems.Keywords: Relative Permeability Three-Phase, Coreflooding Simulation, Numerical Optimization, History Match.