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REVIEW OF THE DOUBLE-POROSITY THEORY

In this theory, the mesoscopic heterogeneity is modeled as being a mixture of two porous phases saturated by a single fluid. Porous phase 1 is defined as being the stiffer lower-permeability phase and phase 2 the more compressible higher-permeability phase.

Local Governing Equations
Double-Porosity Governing Equations
Reduction to an Effective Biot Theory
Double-Porosity a_ij Coefficients
Double-Porosity Transport
Phase Velocity and Attenuation
A Numerical Example

Stanford Exploration Project
10/14/2003