This was the first commercial presalt oil find in the area, the company added.
Well 6-MLS-233-RJS (Petrobras nomenclature), on the Poraquê Alto prospect, was drilled in 1,107 m (3,632 ft) of water, 115 km (71.5 mi) offshore Rio de Janeiro state. Final depth was 4,568 m (14,987 ft).
The discovery was confirmed by profile data, a gas detector, formation testing by cable, and fluid samples. Analysis suggests carbonate reservoirs of good porosity and permeability at a depth of 4,420 m (14,501 ft), and 45 m (147 m) thick with oil presence.
This shows there is potential for new discoveries in Brazil’s mature basins, Petrobras added, with production infrastructure near at hand to facilitate development.