Karoon Energy Ltd has achieved first oil from its PAT-2 development well in Patola oil field in its 100%-owned BM-S-40 production license offshore Brazil. PAT-2, one of two new production wells drilled into the field, was brought onstream at 12,000-14,000 b/d.
Production followed installation of a subsea flowline and umbilical to connect the well to the Cidade de Itajai floating production, storage and offloading (FPSO) vessel nearby. Production from the second well, PAT-1, is scheduled to be brought on stream by the end of March 2023.
Output from the two wells is expected to stabilize near 10,000-15,000 b/d which will take total production from the permit to more than 30,000 b/d before the onset of natural decline.
Karoon said that, depending on the reservoir and aquifer response, one of these two wells may be switched to water injection in the future. Any associated gas production from Patola will be reinjected into the nearby Bauna field via the SPS-89 gas-injection well.
Petrobras discovered Patola in 2011, encountering 38° API oil in the same Oligocene turbidite sandstones found in Bauna and Piracaba fields. Patola is in 280m of water.
Due to better reservoir quality than expected at both PAT-1 and PAT-2, Karoon has upgraded its proven and probable (2P) reserves for the field to 16.4 million bbl.
Patola is Karoon’s first new field development in Brazil. The company bought the BM-S-40 assets from Petrobras in June 2021.
