Project Profile
Value: Undisclosed
Location: Municipality of Pojuca, state of Bahia
Capacity: 588 million bbl of oil in-place
In November 2010, Petrobras will start injecting high-pressure CO2 into the Miranga onshore field, in the municipality of Pojuca, state of Bahia, to test technologies that might contribute to future development projects for the Santos Basin\'s Pre-Salt cluster. The carbon dioxide produced at the future pre-salt fields will be reinjected into the reservoirs themselves to boost the recovery factor.
The Miranga field project foresees the geological sequestration and removal of 370 tons of CO2 from the atmosphere per day. In addition to the excellent environmental gains it affords for, the technology to be applied will considerably increase the recovery percentage of the oil nestled in that field\'s reservoir.
This project will serve as a proving ground for new technologies that might be applied in other fields to be developed in Brazil, particularly in new pre-salt discoveries, since the reservoirs there have shown the presence of natural CO2 associated to the oil.
Other alternatives, such as storage in caves or saline reservoirs, are also under analysis. The Miranga field was ed for the tests on account of its geological characteristics and because of the logistics that are already available at the site.
The technique to be used in Miranga is based on injecting CO2 under high pressures. In this case, the CO2 works like a type of solvent that changes the properties of the oil and allows it to flow better through the reservoir-roc\'’s porous system.
Operators:
Petrobras: Operator with 100% interest