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Petrobras recently completed drilling the first appraisal well in the Libra area, the 3-BRSA-1255 (3-RJS-731), known as NW1. Located in the Northwest portion of the Libra block, in the pre-salt layer of the...

Petrobras completes drilling first appraisal well in Libra Consortium

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Petrobras recently completed drilling the first appraisal well in the Libra area, the 3-BRSA-1255 (3-RJS-731), known as NW1. Located in the Northwest portion of the Libra block, in the pre-salt layer of the Santos Basin, the well is approximately 4 km southeast of the discovery well, the 2-ANP-2A-RJS.

The well reached final depth at 5,734 m and is located 185 km off the coast of Rio de Janeiro, at a water depth of 1,963 m. Drilling results confirmed an oil column of approximately 290 m and a reservoir that shows good porosity and permeability. Samples collected from the well confirmed that the oil of 27° API is the same as the one found in the well 2-ANP-2A-RJS. A formation test is expected in the oil-bearing zone to verify its characteristics and the reservoir productivity.

The Libra Consortium – Petrobras (operator with 40%), Shell (20%), TOTAL (20%), CNPC (10%), CNOOC Ltd (10%) and the state company Pré-Sal Petróleo S.A. (PPSA) – will proceed with the activities set forth in the exploratory plan approved by Brazil’s National Petroleum, Natural Gas and Biofuels Agency (ANP).

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