Development and Management of Turbidite Reservoirs in Campos Basin, Brazil

Campos basin is located in southeastern Brazil, offshore Rio de Janeiro state. The basin covers an area of about 100,000 km², from the coast to the 3400 m isobath, and contains a maximum sedimentary thickness of about 10 km. Campos basin evolution from the Lower Cretaceous period to present day can be divided into three megasequences, as shown on Figure 1: (1) Non-Marine Megasequence, which comprises Neocomian basalts and lacustrine sequences; (2) Transitional Megasequence, which includes evaporites and associated siliciclastic deposits developed during the Aptian; and (3) Marine Megasequence represented by Albian carbonates at the base, overlain by two siliciclastic sequences: a transgressive (Upper Albian to Lower Tertiary) and a regressive (Lower Tertiary to present).