oa Fault Mapping Using Tweaked Traditional Approach in Outboard Campos Basin-Brazil

Fault mapping using seismic data is an essential step for prospect maturation. Identification of faults specially those subtle enough to be missed is important for better reservoir characterization and well placement. Physical and geometric attributes are the most common techniques for fault mapping. However conventional approaches sometimes have difficulty to illuminate faults in unclear, noisy seismic data and more sophisticated approaches are costly and take time. Seismic quality in outboard campos basin at pre salt section, where continental crust hyper extended and salt thickness and complexity is high sometimes is very challenging ( Figure 1 ). Harsh topography of top pre salt carbonate, which is related to nature of carbonate growth, increase complexity of subtle fault mapping in Sag sequence. Detail fault mapping in Campos ultra deep-water zone has crucial role on safe drilling and well cost optimization. In this study I tweaked conventional fault mapping techniques in deep offshore Campos basin-Brazil to map faults in pre salt section. This approach applied in a prospect that traditional approaches already applied without success.