The Recôncavo is one of the most prolific basin in the world and produces low sulfur, waxy and mainly light oils with 34° API. The integration of data shows that the basin is an overcharged petroleum system owing to the thick layers of the lacustrine source rocks of the Gomo and Tauá members. Over fifty percent of the total fields contain petroleum accumulation in the pre-rift Sergi and Itaparica formations. Other reservoirs are in tubidites of the Candeias Formation interlayed with the Gomo Member shales. Basin modeling indicates that migration occurred along fault planes, by direct reservoir-source rocks contact and along sandstones carrier beds. The regional Mata Catu fault is a major oil trend in the basin.

The basin summary charts provide comprehensible information on the different active petroleum systems in the Recôncavo Basin. All charts provide a rich compilation of geological data, charts, maps, cross-sections, well logs, geochemical logs and geochemical interpretative plots based on analyses of a large number of rocks, gases and oils samples.

Full references of all images are listed in the reports

1. Geological Background
2. Exploratory Effort and Results
3. Petroleum System Summary
   1. Candeias-Sergi (!)
4. Reservoir Rocks Chart
   1. Candeias-Sergi (!)
5. Petroleum System Seal and Traps
   1. Candeias-Sergi (!)
6. Petroleum System Generation and Migration
   1. Candeias-Sergi (!)
7. Gas Chart
   1. Candeias-Sergi (!)
8. Exploratory Risks and Overall Conclusions
9. References