Two-phase Flow In Complex Porous Media Using Lattice-Boltzmann Method Available to Purchase

We present results on two-phase flow simulation by Lattice-Boltzmann method. In this paper we focus on the steady state simulation that has a fixed saturation of nonwetting and wetting fluids. We used three rock models; Finney’s random dense pack of spheres and two samples of X-ray tomographic Fontainebleau sandstone. These were binary digital models describing the complex pore space. We investigated three aspects of two-phase flow; effect of initial distribution of two fluids on relative permeability, role of wetting fluid at low wetting fluid saturation, and relative permeability under different pressure gradient and surface tension. We found very small differences in relative permeability with various initial distributions of two fluids. Although the final distributions were a little different due to different initial distributions, the relative permeability was almost identical.