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Petrobras spuds first Libra pre-salt exploration well

07th August 2014

Petrobras has announced that it has started drilling the first exploration well in the Libra area; called 3-RJS-731, the well is being drilled by drilling rig NS-36 (Schain Cerrado)

Petrobras spuds first Libra pre-salt exploration well
While drilling the exploration well, fundamental tests will be carried out to obtain information needed to develop Libra’s production

This is the first of two wells planned for the first phase of the Minimum Exploration Programme (known by Portuguese acronym PEM) agreed with Brazil’s national oil, natural gas and biofuels agency, ANP.

Well 3-RJS-731 will reach a final depth (depth of water and sediments) of 5,850 metres. It is positioned around 170 kilometres off the coast of Rio de Janeiro state, approximately 5 kilometres southwest of discovery well 2-ANP-2A-RJS.

While drilling the exploration well, fundamental tests will be carried out to obtain information needed to develop Libra’s production.

Besides drilling these two wells, the PEM also involves conducting a 3D PSDM seismic survey of the whole block area, already completed, as well as an extended well test, to begin in December 2016.

The entire minimum exploration programme will be completed by the end of 2017.

The Libra consortium is composed of Petrobras (operator and owner of a 40 per cent stake), Shell (20 per cent), Total (20 per cent), CNPC (10 per cent) and CNOOC (10 per cent), together with Pré-Sal Petróleo S.A. (PPSA), the consortium manager.

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