Permeability Anisotropy of Layering Rock Model

摘要

Computer models of layering system were generated to analyze the effect of layering to the permeability anisotropy. Six layering models were created using non-spherical grain models. Each model consist of three layers with different thickness ratios. The permeability of the generated models were calculated using Lattice Boltzmann Method. Analysis of the flow properties shows that the permeability in the horizontal direction is greater than in the vertical direction. From the permeability anisotropy analysis, it is shown that in the horizontal direction, the models are generally considered as isotropic. This is confirmed by the anisotropy values, which are close to 1. The permeability anisotropy of the vertical direction to horizontal direction varies in the range of 0.32 – 0.45.