Pore Structure Effect on the Permeability of Porous Media
Based on the actual shape of porous media, complex porous media can be simplified into four common rules for the shape of pore throat model. By simplifying the calculation, inferred these four kinds of regular shape pore throat model pore throat ratio simplification formula. In order to confirm the inferential reasoning formula is correct, four kind of regular pore throat models are established by using the finite element software, the inferential reasoning formula are substituted in the equation to calculate porous medium the penetration coefficient, contrasted the result and the tentative data we can discover some regulation through four kind of regular shape pore throat model data’s contrast: Test results and calculation of derived results are in agreement, when the porosity is small, the experimental data and calculation of derived results agree well, when the porosity is large, the experimental data and calculation formulas are derived any deviation, but meet the requirements of engineering. Derived formula has changed the traditional pore throat ratio calculations rely on the test, and simplified calculation of the ratio of pore throat, saving cost and time conducive to pore-throat ratio in practical engineering application and promotion.
porous media pore throat model pore-throat ratio
HAN Peifeng LIU Jianjun HE Xiang
Institute of Poromechanics, Wuhan Polytechnic University, Wuhan, China, 430023 School of Civil Engineering, Southwest Petroleum University, Chengdu, China, 610500
国际会议
成都
英文
65-70
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）