oa Advanced Modeling and Inversion Tools for Controlled Source EM

Modeling and invasion of CSEM data is a challenging problem. In this work we present a combination of methodologies that allows for the solution of such problem using reduced in a computational efficient way. Our framework is composed from three main parts 1. An adaptive mesh, that is adapted to the sources and receivers, that decreases the size of each linear system to be solved. 2. A multiscale approach that allows us to use large cells far away from the sources and receivers and correctly average or upscale the conductivity. 3. A stochastic programming approach that allows for the reduction of the number of forward modeling at each step of the inverse problem