Porosity and permeability are very important characters of a porous media.In this work, MRT LBM was used to study the pore structure influence on permeability and the porosity loss influence on permeability loss. Our simulation results are shown as follows. If there are some factors which cause even decreasing of porosity, such as that of depositing, sediment, and coking, the scope of permeability loss is larger than that of porosity loss. In same-porosity-different-structure (SPDS) porous media, there are extraordinary differences in permeability depending on their own pore structures.A larger ratio of max throat length to min throat length leads to a smaller permeability,and a larger tortuosity leads to a smaller permeability.
MA Bin
,
SHI Lin
,
HUANG Chao
,
XU Qianghui
. Study on heterogeneity of pore structure to permeability by MRT LBM[J]. Journal of University of Chinese Academy of Sciences, 2018
, 35(2)
: 193
-199
.
DOI: 10.7523/j.issn.2095-6134.2018.02.007
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