Twenty Years of CSEM Exploration in the Brazilian Continental Margin

The controlled source electromagnetic (CSEM) method is frequently used as a risk reduction tool in hydrocarbon exploration. This paper aims to provide comprehensive historical review of the CSEM method’s twenty-year history Brazilian continental margin. Since 2003, we have significantly improved our understanding resistivity data across various geological scenarios. presents roadmap technical advancements acquisition design and interpretation techniques. As result, methodology has broadened from traditional more general use, such salt imaging, gas hydrates, geohazard mapping, reservoir characterization. Finally, indicate potential upcoming applications new energy resources carbon capture storage.