TotalEnergies has announced the final investment decision by the Libra Consortium to implement an innovative natural gas and CO2 separation and reinjection facility for the Mero field in the Brazilian deep offshore pre-salt.
The pilot unit will use high-pressure subsea separation technology (HISEP) to separate oil from CO2-rich gas at the ocean floor, reinjecting the gas directly into the reservoir.
The technology has the potential to reduce the volume of gas sent to the topside FPSO, lowering greenhouse gas emissions while increasing field production capacity.
The HISEP subsea separation pilot unit will connect to the Marechal Duque de Caxias FPSO as part of the Mero 3 project, currently under construction.
The initiative is part of the Libra Consortium’s research and development programmes.
Mero is a unitised field operated by Petrobras (38.6%), in collaboration with TotalEnergies (19.3%), Shell Brasil (19.3%), CNPC (9.65%), CNOOC (9.65%), and Pré-Sal Petróleo SA (PPSA) (3.5%).