ABSTRACT

A model for determining the permeability of fractural porous media based on the double percolation model is presented. The results are close to that by fractural permeability tensor model. The non-uniformity of the permeability and the pore pressure are investigated by parameter study. It is shown that rocks could be divided into “pore-controlling” permeability and “fracture-controlling” permeability according to the fracture length. This model can not only account for the effects of pores and fractures together, but also deal with simulation of fracture network in large scale fast and simply.

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