Petrobras said tests confirmed the size of the oil discovery at Libra's first appraisal well, 3-BRSA-1255-RJS (3-RJS-731), informally known as NW-1.
Tests at the well, located 185km off Rio de Janeiro, proved an 290m oil column and carbonate reservors of high porosity and permeability. Petrobras said that two production tests – performed on two different zones - have confirmed reservoirs with "excellent" productivity and 27º API oil quality.
Petrobras originally announced the find at NW-1 back in October. Drilling began at the prospect in August using the Schahin Cerrado drillship.
The Libra Consortium is composed of Petrobras (operator, with 40%), Shell (20%), Total (20%), CNPC (10%), CNOOC (10%) and the state company Pré-Sal Petróleo S.A. (PPSA).
Last week, Petrobras saw the resignation of several long-time executives including CEO Maria das Gracas Foster. The company's board selected Banco do Brasil CEO Aldemir Bendine to lead the company.
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