Abstract
Carbon dioxide injected into the aquifer would be trapped by capillarity in porous rocks. We simulated two-fluid-phase flow in porous media by means of a Lattice-Boltzmann Method. And we examined the influence that properties of porous media gave. With a decrease in the coordination number of porous media, trapped position were different and gas bubbles of be trapped in a pore-network scale tend to increase. With a decrease in the pore throat diameter, gas bubbles of be trapped in a pore-network scale tend to become larger and trapped position remains save. Residual gas saturation tended to increase so that the porosity of porous media becomes small.
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