Petrobras declares commerciality of Sepia Leste (Brazil)

Petrobras has filed a declaration of commerciality for an oil accumulation in the pre-salt layer of the Santos Basin, offshore Brazil.

The Rio de Janeiro-based oil giant said Petróleo Brasileiro S.A. the declaration was for the oil accumulation in the northwest of the Júpiter Discovery Evaluation Plan (PAD) in the Block BM-S-24.

In the declaration sent to the regulatory agency, the consortium composed of Petrobras (80%) in partnership with Petrogal Brasil S.A. (20%) suggested that the new field should be called Sépia Leste.

This field is located approximately 250 km off the coast of Rio de Janeiro state at a water depth of 2,165 metres. The total estimated recoverable volume of the Sépia East field is 130 million barrels of oil equivalent (mmboe).

The Sépia Leste field is at approximately 250 km from the coast of Rio de Janeiro state, at a depth of 2,165 meters. 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.

The Sépia field was declared commercially viable by Petrobras in September 2014. The company says that the field presents reservoirs with excellent porosity and permeability characteristics and good quality oil (approximately 26º API).

The BM-S-24 consortium and Petrobras (Sépia field’s operator) are discussing the unitization of the deposit comprising the Sépia and Sépia Leste fields by means of a Production Individualization Agreement (PIA). 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.

If the area is considered as a single deposit, the production of the Sépia Leste field will be handled by the same system used in the Sépia field, whose operational start-up is scheduled for 2019.

The BM-S-24 consortium will have until February 2016 to conclude the appraisal of the discovery of the remaining area comprising the Júpiter PAD.

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