Oil Seep Detection Using Microwave Remote Sensing at Espírito Santo Basin, Eastern Brazil

Hydrocarbon seepage phenomena can be found in most petroleum provinces located both coastal and ocean regions. The present work aims to identify, map quantify oil seep candidates the maritime portion of Espírito Santo Sedimentary Basin using Synthetic Aperture Radar imagery from Radarsat-2 Sentinel-1. selection SAR images was made based on their basin coverage area. Meteorological oceanographic data, when available, were used assist interpretation. Later, presence structures that may enable fluids escape (faults, fractures, salt domes, etc.) verified 101 seismic lines. After detailed analysis, obtained data gathered, aiming classify according probability happening. There 3 parameters, subdivided into criteria, ranking score: (distance vessels, number nearby possible seeps feature size), Geological (morphotectonic domains) Seismic lines, distance structure). Each criterion received grades ranging 0.1 1.0. final score is given by arithmetic mean parameters. This allowed organized a ranking. methodology successful identifying 54 promising features northern Campos basin. Half found, 27 features, grade higher than 0.7, which strengthens idea being seeps. As an outcome 1:3,500,000 scale with location all mapped this province.