Method for constructing a mesh of a fractured reservoir with a limited number of nodes in the matrix environment

摘要

The method involves generating a mesh of a discrete fracture network by defining a set of cells for a fracture. A mesh of a matrix medium is generated by dividing each cell by an octree technique. Transmissivities between the cells of the fracture mesh, transmissivities between the cells of the matrix medium mesh, and transmissivities between cells of the fracture mesh and cells of the matrix medium mesh are determined. The cells and the transmissivities are used for generating an image of a fluid reservoir from which the operation of the fluid reservoir is optimized.