Internal multiple attenuation for four pre-salt fields in the Santos Basin, Brazil

The Santos basin is known to contain strong internal multiples that pose a major challenge for the imaging of pre-salt reservoirs. Artifacts generated by incorrectly imaged internal multiples can affect model building, interpretation, and ultimately contaminate amplitudes in the pre-salt reservoirs. We examine four different pre-salt fields from the Santos basin, present our prediction and subtraction strategy, and detail our observations and learnings for each one of the fields in the context of internal multiples.