2022-07-202022-07-202022-04-29PIRES, Higor Carlos da Silva. Modelagem 3D MCSEM: Simulações com COMSOL Multiphysics e emg3d. Orientador: Victor Cezar Tocantins de Souza. 2022. 37 f. Trabalho de Curso ( Bacharelado em Geofísica - Faculdade de Geofísica, Instituto de Geociências, Universidade Federal do Pará, Belém, 2022. Disponível https://bdm.ufpa.br:8443/jspui/handle/prefix/4235. Acesso em: .https://bdm.ufpa.br/handle/prefix/4235Large-scale modeling of 3-D Controlled-Source Electromagnetic (CSEM) electromagnetic research and modeling is often a privilege for large companies and research consortia. This has changed in recent years and today there is a selection of different “open-source” codes available to everyone and also commercially licensed numerical modeling software accessible to teaching and research institutions. This work presents the numerical modeling in three dimensions (3D) of the MCSEM - “marine controlled-source electromagnetic” method using two approaches. The commercial software COMSOL Multiphysics and the “open-source” code emg3d to simulating a geophysical model formed by resistive blocks. The resistive blocks emulate a typical geological environment found in electromagnetic data acquisitions. We first compare the results of the two methodologies through the block model for three survey lines. In this step we analyze the necessary conditions of the boundary conditions for COMSOL Multiphysics to be achieved properly in the numerical modeling. After this comparison, we explored the facilities built into COMSOL Multiphysics and simulated the model for various frequencies. Finally, we analyzed the results and proposed lines of research for the construction of simulations to be explored in numerical modeling in these two approaches. We hope to ratify both approaches in their proper context, use and importance through this work. Keywords: EM modeling; finite elements; finite volumes; MCSEM; COMSOL multiphysics; Python; emg3d.Acesso AbertoModelagemMCSEMEmg3dCOMSOL multiphysicsCNPQ::CIENCIAS EXATAS E DA TERRATrabalho de Curso - Graduação - Monografia