Numerical calculation of permeability for periodic fractured-vuggy porous medium based on homogenization method
Abstract：Based on the assumption of micro period,a formula of permeability in periodic fractured-vuggy porous media was given from Darcy-Stokes equation by homogenization method.The finite element method of permeability was given by using domain decomposition method.Those methods were verified by analytical method.The numerical solution was in good agreement with the analytical method.The permeability of periodic fractured-vuggy porous media was got and the relationship between permeability and matrix permeability,fracture aperture and vuggy radius was discussed.The numerical results show that the fracture aperture has crucial effect on the permeability of fractured-vuggy porous media.If the fracture aperture varies from 0.001 m to 0.004 m,the permeability of fractured-vuggy porous media varies quickly from 1.03×10-11 m2 to 6.33×10-10 m2.
Keywords：homogenization methodfractured-vuggy porous mediapermeabilityDarcy-Stokes equationsdomain decomposition method
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)