Patent Document ID: 20050027499
Application ID: 10900120
Patent Flag: 0

Claim One:
1 ) A method for simulating at least one of compositional and multiphase transfers between a porous matrix on one hand and fractures on another hand of a multilayer porous medium, respectively saturated by a liquid phase and a gas phase, comprising constructing a geologic model representative of natural fracture networks of the medium and converting the geologic model to an equivalent double porosity model, wherein diffusion of the gas phase between the fractures and the matrix is modelled considering that a gas-liquid front exhibiting a equilibrium at the interfaces is established from an initial time and progresses at a velocity controlled by diffusion transfers within each phase, which transfers involve a difference between a concentration within the phase and a concentration of equilibrium between the two phases, as well as a variable exchange distance expressed as a function of matrix saturation.