Roncador field, at Campos Basin, is characterized by the presence of several compartments with distinct hydrocarbon API grades and fluid contacts. Geologic modeling used in flow simulation involved the determination of the spatial distribution of key reservoir petrophysical properties, interpolated between wells by seismic data constrain. Modeling results suggest a dominant depositional control of petrophysical properties. Despite the encouraging results, some questions related to blocks and reservoir connections and reservoir heterogeneities are yet to be answered.
Roncador field is located 130 Km offshore Brazilian southeastern coast and produces 90,000 b/d from sandstone reservoirs at 1,500-1,900 m water depths (the sea floor is a smooth, easterly dipping surface) (Fig.1 and 3).