Three-dimensional hydrodynamic lattice-gas simulations of binary immiscible and ternary amphiphilic flow through porous media

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Abstract
We report the results of a study of multiphase flow in porous media. A Darcy’s law for steady multiphase flow was investigated for both binary and ternary amphiphilic flow. Linear flux-forcing relationships satisfying Onsager reciprocity were shown to be a good approximation of the simulation data. The dependence of the relative permeability coefficients on water saturation was investigated and showed good qualitative agreement with experimental data. Nonsteady-state invasion flows were investigated, with particular interest in the asymptotic residual oil saturation. The addition of surfactant to the invasive fluid was shown to significantly reduce the residual oil saturation.
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