Paper submitted to First EAGE/SBGf Workshop on Seismic Processing, by Zargos Masson, Victor Oliveira, Marcel Torretta, Seet Li Young and Jon Burren (TGS), Raoni Alves, Wendel Lopes, Antonio Jorge Sá, Bruno Chaves and Tiago Filgueiras (Petrobras).
Abstract
In this case study, we demonstrate how the application of the Dynamic Matching FWI (DM
FWI) algorithm (Mao et al., 2020) enabled a high-resolution 3D imaging solution in the
Campos Basin under a strict four-month turnaround. By applying DM FWI directly to a
minimally processed hydrophone data from a newly deployed OBN network, the project
bypassed intensive preprocessing to deliver timely, high-quality imaging for imminent drilling
decisions. The resulting FWI velocity model and associated FDR significantly improved
structural continuity, base-of-salt definition, and subsurface interpretability, providing critical
support for the evaluation and de-risking of pre-salt drilling targets.