The Libra block is located more than 150km off the coast of Rio de Janeiro in the prolific pre-salt area of the Santos Basin.
Production from the field has started via floating production storage and offloading (FPSO) Guanabara.
Initially connecting seven injector wells and six producing wells to the field, this FPSO is designed to have a production capacity of 12 million cubic metres of natural gas and 180,000bpd of oil.
The partners plan to initiate three additional development phases of the field, namely the Mero-2; Mero-3; and Mero-4 FPSOs, between 2023 and 2025.
Petrobras operates the Mero-unitised field with a 38.6% stake while other partners include TotalEnergies (19.3%), CNPC (9.65%), Shell Brasil (19.3%), CNOOC (9.65%) and Pré-Sal Petróleo SA-PPSA (3.5%).
TotalEnergies chairman and CEO Patrick Pouyanné said: “This development will continue with the addition of three FPSOs in the coming years, all already under construction, which will deliver a production of more than 650,000 barrels of oil equivalent per day in 2026.”
The Mero field has been in pre-production since 2017 through the 50,000bpd Pioneiro de Libra FPSO.
In a statement, Petrobras said: “Additionally, the Mero field is developing an unprecedented technology to separate, on the seabed, CO₂-rich gas from oil for reinjection from the seabed, reducing the amount of gas reaching the FPSO, thus increasing the FPSO’s availability to oil and the project’s efficiency.”