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Lattice Boltzmann Simulation of Fluid Flow in Complex Porous Media Based on CT Image

Zi-Sen Wu 1, Ping-Chuan Dong 2, Gang Lei 2, Shu Yang 2, and Nai Cao 2
1. China University of Petroleum, Beijing, China
2. China University of Petroleum,Beijing, China

Abstract—In this paper, we simulate single phase and two-fluid-phase flow in realistic porous media using a lattice Boltzmann(LB). We used X-ray tomographic sandstones. These are binary digital models describing the complex pore space. First we show lattice boltzmann simulation results of single phase flow. We calculate the flow field and permeability of the micromodel and find agreement with experiment. Second, we simulate two-fluid-phase flow at the pore scale using the Shan-Chen model lattice boltzmann method. First, we calculate relative permeability for each fluid. Then we observe that the relative permeability of non-wetting phase increases with pressure gradient, while that of wetting phase stays almost the same.

Index Terms—lattice boltzmann, porous media, simulation, relative permeability

Cite: Zi-Sen Wu, Ping-Chuan Dong, Gang Lei, Shu Yang, and Nai Cao, "Lattice Boltzmann Simulation of Fluid Flow in Complex Porous Media Based on CT Image," Journal of Industrial and Intelligent Information, Vol. 4, No. 1, pp. 65-68, January 2016. doi: 10.12720/jiii.4.1.65-68
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