Brazil's revenue from oil found in pre-salt reservoirs will help the country double its official capital reserves, Finance Minister Guido Mantega said on Friday.

At a meeting on the international economy organized by the Campinas University in Sao Paulo state, Mantega expected the capital reserves to increase from 200 billion U.S. dollars to 400 billion dollars thanks to the revenue from the exploitation of oil in the pre-salt reservoirs.

"We will be able to invest part of the revenue in other sectors of the economy," he said, adding "the petroleum reserves represent a great advantage for Brazil."

"Brazil is to become a great oil producer and exporter, which will stimulate Brazil's economic development and benefit all Brazilian people," Mantega noted.

Brazil's state-owned oil and gas giant Petrobras announced last year the discovery of huge pre-salt reservoirs off the country's coast, which are located in the Santos Basin with an estimated oil reserve of about 70 billion barrels.