Permeability, conductivity, and pore geometry of sandstone

Abstract

Using Bruggeman's effective medium theory, the hydraulic permeability and dc electrical conductivity of sandstone are both expressed in terms of the ratio of two microscopic lengths, which are the dimensions of a characteristic pore throat and pore chamber, respectively. The theory is consistent with Kozeny-Carman formulas in the limit of a perfectly microscopically homogeneous pore structure. The transport properties of Fontainebleau sandstone are predicted. -from Author