Petrobras prospecting for oil off the coast of Santos, São Paulo, Brazil It's been one week now that Brazil's government owned oil corporation Petrobras announced the discovery of yet another field of light oil, in ultra deep waters of Santos Basin. The well known as Guará in the BM-S-9 block encountered oil with specific gravity of 28° API (American Petroleum Institute) in pre salt reservoirs, according to the official release.

    The consortium operating BM-S-9 includes Petrobras (45% and operator), Britain's BG Group Plc. (30%) and Repsol-YPF (25%).

    Block BM-S-9 is composed of two exploratory areas. Well 1-BRSA-491-SPS (1-SPS-50) was the first and largest drilled, informally called Carioca, which resulted in the discovery announced on September 5 2007. At the time Brazil's petroleum regulator said it could contain as many as 33 billion barrels of oil.

    The new well, 1-BRSA-594-SPS (1-SPS-55), informally called Guará, is located in the smaller area of the block, at some 310 km (193 miles) off the coast of the State of São Paulo and at 2.141 meters (7024 feet) from the waterline. The drilling in the well continues in search of deeper objectives.

    The discovery was proved by an oil sample collected via a cable test carried out in reservoirs situated at a depth of nearly 5,000 m (16,404 feet).

    "After well completion, the Consortium will proceed with the required activities and make the investments that are needed to verify both the field's dimensions and the characteristics of the oil reservoirs." Following on the Concession Agreement the consortium will forward an Assessment Plan to Brazil's National Petroleum Agency.

    However analysts consider that the Carioca reserves will not be properly tested until a well is drilled later this year in the neighboring BM-S-22.

    "Together with our partners, we will now continue to advance our evaluation and development program, targeting initial production from the pre-salt Santos Basin during 2009," said Frank Chapman, BG chief executive.

    Further assessment of the well will be carried out to determine the scale and characteristics of the reservoir. Once this is completed, an evaluation plan will be submitted to Brazil's National Petroleum Agency, BG said.

    Brazil has turned into the key to BG's long-term growth following the Tupi find in 2006. Tupi was hailed as one of the world's largest oil strikes after official estimates placed the field's oil-on-place resources at anywhere between 12 billion and 30 billion boe, and recoverable reserves of 5 billion to 8 billion boe.

    BG owns a 25% stake in Tupi, while Petrobras owns a 65% stake and is the project operator. Portugal's Galp Energia holds the remaining 10%. Tupi should be capable of producing up to one million barrels of oil equivalent a day once the field is fully developed. Guará is BG's fifth oil find in the Santos Basin since it began drilling the area in 2005.

    Mercopress

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    • Show Comments (3)

    • João da Silva

      Jon
      [quote]Petrobras comes up dry with Peroba [/quote]

      Resume your digging “the hell of Alberta”, then. Make sure you quench your thirst with plenty of Molsons.

    • jon

      FINALLY A DRY ONE!!
      Petrobras comes up dry with Peroba

      By Upstream staff

      Norway’s Norse Energy along with partners, Petrobras, Queiroz Oil & Gas and El Paso said the well that was drilled in the Peroba Prospect off Brazil in the Camamu-Almada basin, came up dry.

      Final logging operations showed that the two expected sandstone reservoirs were reached between 2740 metres and 2840 metres of depth, with around 25 metres thickness each and with good porosities but water bearing.

    • ..

      Brazil Strikes Light Oil Off São Paulo Coast
      An oil strike a week keeps the scandals away 😉

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