Petroleum Systems in the Brazilian Sedimentary Basins

BACOCCOLI, G., and M. R. MELLO, Petrobras CENPES/DIVEX, Rio de Janeiro, Brazil, W. U. MOHRIAK, Petrobras DEPEX/DIRSUL, Rio de Janeiro, Brazil, and E. A. M. KOUTSOUKOS, Petrobras CENPES/DIVEX, Rio de Janeiro, Brazil

The application of a multidisciplinary approach involving geochemical, sedimentological, geophysical, and paleontological research has greatly enhanced the level of understanding of some of the most representative petroleum systems in the Brazilian sedimentary basins.

The integration of the data allowed the characterization of the petroleum pathways from source to trap, in time and space, which represent about 90% of the known oil in place in the Brazilian sedimentary basins, ranging from Paleozoic to Tertiary in age.

Four major petroleum systems were selected as representative case studies: (1) the intracratonic Paleozoic Solimoes system, in the Amazon region; (2) the rift lower Cretaceous Reconcavo system, in Bahia, northeast Brazil; (3) the proto-marine evaporitic Aptian system, in Sergipe, northeast Brazil; and, (4) the Cretaceous-Paleogene marginal, deep-water Campos system, offshore Rio de Janeiro, southeast Brazil.

AAPG Search and Discovery Article #91004 © 1991 AAPG Annual Convention Dallas, Texas, April 7-10, 1991 (2009)