San Francisco: A huge offshore Brazil oil field is even more extensive than initially believed, oil producer Barra Energia announced on Thursday.
Brazilian firm Barra has been exploring the Carcara field in conjunction with state oil giant Petrobras, Portuguese outfit Galp and Brazilian firm QGEP Participações SA.
Drilling about 250km offshore of Rio de Janeiro has revealed oil contained in a continuous column of oil- bearing rock that is at least 358 metres tall.
Carcará, discovered in 2012, was found to have up to 400 metres of continuous and connected oil reserves. It was the biggest oil column ever found in Brazil’s subsalt region, an area where large oil resources are trapped deep beneath the seabed by a layer of mineral salts.