The Libra Consortium has commenced oil production from the Mero-4 floating production, storage, and offloading (FPSO) unit, Alexandre de Gusmão, located in Brazil’s pre-salt Santos Basin, 180 kilometers off the coast of Rio de Janeiro. This marks a key milestone in the development of the Mero field, one of the country’s most prolific offshore oil reserves.

Mero-4 FPSO Adds Major Capacity

Launched in August 2021, the Mero-4 phase connects 12 production and injection wells to the new FPSO, which has a processing capacity of 180,000 barrels of oil per day. With this addition, the Mero field now operates five FPSOs with a combined capacity of 770,000 barrels per day.

TotalEnergies, one of the consortium partners, expects to receive approximately 100,000 barrels of oil equivalent per day at full capacity from its share in the project.

Low-Emission Design and Operational Strategy

Designed with a strong focus on environmental performance, the Mero-4 FPSO reinjects associated gas back into the reservoir and avoids routine flaring—strategies aimed at reducing greenhouse gas emissions.

Operated by Petrobras, the Mero unitized field is developed in partnership with TotalEnergies, Shell Brasil, China National Petroleum Corporation (CNPC), China National Offshore Oil Corporation (CNOOC), and Pré-Sal Petróleo S.A.

The commissioning of four FPSOs in just three years signals the end of the development phase and the beginning of long-term, high-volume production across the Mero field, with anticipated strong cash flow for the partners.

Strategic Milestone for TotalEnergies in Brazil

TotalEnergies, which has operated in Brazil for five decades, views the Mero project as central to its growth in the country. The company employs around 4,000 people locally and is expanding its renewable energy portfolio through a partnership with Casa dos Ventos to develop 12 gigawatts of clean energy capacity.

The Mero field aligns with TotalEnergies’ strategy to produce low-cost, low-emission oil and strengthen its position in key growth markets such as Brazil.

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