This year alone the Proef efficiency programme launched in 2012 has boosted production in Brazil's Campos basin by an average of 55,000 barrels per day, according to Eberaldo de Almeida Neto, general manager of Petrobras E&P operations unit.
"The cash flow comes from mature fields," Neto said during a panel on mature fields at the Rio Oil & Gas trade show, also detailing efficiency efforts in the Santos and Espirito Santo basin.
"There
