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Recognition of fault bend fold, detachment and decapitation has been possible despite the poor quality of the seismic. That was successful because of: A full integration of all disciplines including reservoir engineering petrophysics and geochemistry Vizualization in 3-D that made all members of the team speak the same language Exploratory 3-D statistics that allowed to identify the anomalies and focus solely on the main problems An open mind and a full management support TVDSS 2 0 2 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 5 0 Seismic has been of limited help for the interpretation of the Santa Barbara Field. This is due to a combination of factors including acquisition,processing and structural complexity. All of the production data had to be used to give a reliable model. Visualization has been essential to get the maximum integration with the petrophysicists, geochemists and especially with the reservoir engineer. It has been necessary to make maximum use of 3-D vizualization thoughout the various phases of interpretation/integration and to make frequent comparison with outcrop analogues. -17500 16250 -15000 -13750 37.5 30.0 22.5 15.0 API TVDss Geochemistry, petrophysics and reservoir engineering have been of great help in the structural interpretation. The diagram to the right shows the variability of oil gravity with respect to depth. The API data fully supports the Fault Bend Fold model and indicates that oil got emplaced before its full development (FBF). Data fromCarito and Santa Barbara Each line is interpreted as corresponding to to a separate reservoir API Gravity versus depth CONCLUSIONS Other vital pieces of information Acknowledgment Thanks to PDVSA Oriente and PDVSA Intevep for the permission to present this paper Fault propagation fold -16 2 50 -15 0 00 -13 7 50 415000 420000 425000 430000 UTM EAST West East Detachment planes Top Cretaceous used as a ramp 2-D projection of all major tops in Santa Barbara Fault Bend Fold PDVSA INTEVEP