Numerical Analysis of Micellar-Polymer Displacement of Oil from Flooded Strata PDF

Keywords

Mathematical model, Micellar-polymer, oil

Abstract

Mathematical modeling of the process of flooding of an oil-bearing bed by a micellar-polymer mixture is developed. A model of the process is developed in the framework of isothermal flow of a multiphase, multicomponent incompressible fluid. The model takes into account nonequilibrium effects in the multiphase flow associated with the presence of the relaxation times needed for rearrangement of the flow structure, when the hydrodynamic forces change and the adsorption of the components, it also takes into account the inaccessibility of part of the pore space for flow of multicomponent systems, the freeing of the trapped part of the oil and the decrease in the mobility of the water under the influence of the active components. In this solution represented in this paper, the breakup of the micellar solution slug was simulated only by retention, nevertheless, the numerical solution agrees satisfactorily with the experimental data which confirms the conclusion that the retention of the micellar solution in the porous medium plays the predominant part in the breakup of the micellar slug