Patent Document ID: 7701804
Application ID: 11194528
Patent Flag: 1

Claim One:
1. A method for constructing a model representative of a heterogeneous medium described by at least one combination of at least one physical quantity, from a procedure of joint inversion of data representing the heterogeneous medium, which is expressed in different time scales, comprising: determining with a computer a first estimation of at least one combination of physical quantities of the model from the data expressed in a first time scale; determining with a computer at least a second estimation of the at least one combination from the data expressed in at least a second time scale; carrying out with a computer an analysis of the estimations to determine at least one scale factor allowing establishment of a match between the first time scale and the second time scale; performing with a computer, in order to construct the model representative of the heterogeneous medium, the joint inversion of the data by minimizing a cost function wherein the at least one scale factor allows expression of synthetic data associated with a model of the joint inversion described in a time scale, in another time scale, so as to evaluate a difference between the synthetic data and the data expressed in the another time scale; and wherein the data expressed in different time scales results from one of electromagnetic or elastic waves emitted in the medium and only a low-frequency part of the at least one scale factor is determined.