METHOD FOR CHARACTERIZING AND EXPLOITING UNDERGROUND FORMATION COMPRISING A FRACTURE NETWORK

摘要

Process for the exploitation of a fluid in an underground formation comprising a network of fractures Starting from measurements of properties relating to the formation, a mesh representation of the formation, and statistical parameters relating to the fracture network, each mesh of the meshed representation is decomposed into at least one non-fractured matrix block and determined a tensor of equivalent permeability of the fracture network in the mesh in question. Then, a matrix block characteristic dimension is determined according to a function relation at least of the eigenvalues of the equivalent permeability tensor. From the mesh representation, the characteristic dimension and a flow simulator, an optimal exploitation scheme of the fluid of the formation is defined and the fluid is exploited according to the optimal operating scheme. - Application in particular to oil exploration and exploitation.