Petróleo Brasileiro (Petrobras) has declared Sépia Leste in the Santos basin pre-salt area to be commercial with an estimated 130 MMboe recoverable resources, offshore Rio de Janeiro.
The oil accumulation is located northwest of the Júpiter discovery evaluation plan (PAD) in Block BM-S-24, about 250km off Rio de Janeiro’s coastline at 2165m water depth.
The Brazilian giant filed with the country’s National Petroleum, Natural Gas, and Biofuels agency (ANP) for the commerciality on 13 November.
“During the exploration, the extension of the accumulation of the Sépia field (transfer of rights) for the Sépia Leste area was verified, characterizing to be a single oil deposit,” Petrobras said. “The Sépia field was declared commercially viable by Petrobras in September 2014 and presents reservoirs with excellent porosity and permeability characteristics and good quality oil (approximately 26ºAPI).”
Plans are being discussed amongst the BM-S-24 consortium for the unitization of the deposit comprising the Sépia and Sépia Leste fields, which would lead to a production individualization agreement (PIA). According to Petrobras, the unitization process consists of enabling, through a single project, the development and production of a single deposit, which encompasses concession areas belonging to more than one concessionaire.
Should the area be considered as a single deposit, the production of the Sépia Leste field will be handled by the same system used in the Sépia field, which is scheduled for start up in 2019.