a method for updating a fine geologic model

摘要

A method intended for direct updating, by dynamic production data, of a fine geologic model representative of the distribution, in a reservoir, of a physical quantity characteristic of the subsoil structure. The method is based on the coupling of inversion and upscaling techniques allowing to optimize petrophysical parameters of a rougher simulation model resulting from the fine geologic model. It comprises direct parameterization of the fine geologic model, upscaling being only a means of obtaining rapidly an approximation of the simulation results and of their derivatives in relation to the parameterization of the fine geologic model.