First extension well in pre-salt Libra leads to oil discovery
The Libra consortium announced that the drilling of the first extension well in the Libra area, known as 3-BRSA-1255-RJS (3-RJS-731), has proven the discovery of high-quality oil in the northwest portion of the structure.
The well, informally known as NW1, is located in the pre-salt of Santos Basin, at about 170 km off the coast of the state of Rio de Janeiro and approximately 4 km southeast of the discovery well, 2-ANP-2A-RJS.
The oil-bearing interval was observed by fluid profiles and samples, which will subsequently be characterized through laboratory analysis. The well is still being drilled, currently at a depth of 5,326 m, and drilling will continue to 5,850 m.
The consortium will continue with operations to complete the well drilling to verify the extension of the new discovery and to characterize the conditions of the reservoirs found.
The Libra consortium is composed of Petrobras (operator, with a 40% stake), Shell (20%), TOTAL (20%), CNPC (10%) and CNOOC (10%), and the contract manager is Pré-Sal Petróleo S.A.
Libra was the first area auctioned by Brazil’s National Oil, Natural Gas and Biofuels Agency (ANP) under the production-sharing regime.