High Resolution Deep Water FWI Velocity - A West Africa Example

Summary The West Africa Atlantic margin is characterized by complex geology and their associated imaging challenges. In this case study, we describe a seismic imaging velocity model building workflow that captures the details of the mass transport complexes, enabling the reconstruction of the Cenomanian and Albian reservoir geometries. In a deepwater environment with limited depth penetration of the diving waves, we demonstrate how we leveraged the information only from reflections using Dynamic Resolution Time-Lag Full-Waveform inversion (DR-TLFWI; Wang et al., 2023 ) to solve the challenges of this area.