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Abstract
In this paper, migration of supercritical CO2 in porous media under conditions of saline aquifers is numerically simulated using lattice Boltzmann method (LBM). A new LBM model has been proposed to minimize the unphysical interfacial current. Using the newly formulated LBM model, buoyancy-driven two phase flow past through body centered sphere beds, as the simplified geometries of porous media, and also real rock geometry obtained by Micro-CT scanner is numerically simulated. CO2/saline-water properties under conditions of CO2 storage in saline aquifers are used in the simulation. Through the simulation, the effects of different parameters including bond number, contact angle, viscosity ratioand porosity of porous media are analyzed and discussed.
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