METHOD FOR SIMULATING THE MOTION OF INDIVIDUAL PHASES OF MULTIPHAS / MULTI-COMPONENT FLOW THROUGH THROUGH A POROUS MEDIUM

摘要

1. A method for simulating the movement of individual phases of wetting fluids and non-wetting fluids through a porous medium, comprising the following steps: a) creating a three-dimensional digital representation of the porous medium (Sample) containing the entire volume of fluids, which are wetting fluids and non-wetting fluids, b) determining the first fraction of the total volume of fluids, which contains wetting fluids, and the second fraction of the total volume of fluids, which contains non-wetting fluids, c) determining the flow rate of the entire volume of fluids passing through the Sample, d) an assessment of the properties of wetting fluids and non-wetting fluids, e) determining the initial conditions for saturation (Sw) of wetting fluids, saturation (Sn) of non-wetting fluids, inlet pressure (Pw ) wetting fluids and inlet pressure (Pn) of non-wetting fluids, e) establishing conditions on the inlet surface of the Sample, where non-wetting fluids and wetting fluids enter the pores of the sample in separate and different areas, etc.) calculation of pressures, saturations and velocity vectors inside the Sample, h) calculation of velocities (Qn) of the flow of non-wetting fluids passing through the Sample, velocities (Qw) of the flow of wetting fluids passing through the Sample, and pressures at the outlet of the Sample, and) repeating steps a ) - h) for a given number of time increments t, and periodic adjustment of the inlet pressures Pn and Pw using a feedback control algorithm, and the values of Qn and Qw of the quasistationary state are obtained. 2. The method of claim 1, wherein the porous medium i