Petrobras has developed a program for the capture, use, and geological storage of CO2 (carbon dioxide) in the pre-salt fields, which is the largest in the world in operation, in annual reinjected volume, and the pioneer in ultra-deep waters. The gas from the pre-salt fields contains natural gas and also CO2 in its composition. The Carbon Capture, Utilization Storage (CCUS) technology encompasses the separation of CO2 and natural gas and the subsequent reinjection of the CO2 in the reservoir, where it is stored. The reinjection was a solution found by the company to meet the commitment of not emitting carbon dioxide into the atmosphere. The initiative allows the company to produce low-carbon oil in the pre-salt fields. Petrobras said the volume of CO2 reinjected into reservoirs has been increasing every year. According to Ultra Deep Water executive manager, Luiz Carlos Higa, “in the first nine months of 2021 alone, about 6.7 million tons of CO2 were reinjected, equivalent to almost the entire 2020 volume.
Source: Datagro (*Translated by Ia Niani)