Petrobras Turns on Taps at Tiro & Sidon Offshore Brazil

Aboard the semisubmersible SS-11 Atlantic Zephyr platform, Petrobras celebrated the commencement of first oil from the Tiro and Sídon oil accumulations, located in the Santos Basin.

Additionally, Petrobras has initiated the Extended Well Test (EWT) for the Tiro and Sídon areas by means of the installation of the Atlantic Zephyr platform, which has a capacity to produce 20,000 barrels of oil per day (bpd) and to treat 475,720 cubic meters of gas per day.

The Tiro and Sídon deposits were discovered in July and September 2009, respectively, and are located in exploratory block BM-S-40 (100% Petrobras), in the south area of the Santos Basin, about 210 kilometers off the coast. The deposits are located in shallow waters, in the post-salt region, at a depth of 2,100 meters and at some 250 meters from the water line.

The volume of recoverable oil has been estimated at 150 million barrels of oil equivalent. Early results indicate the presence of good quality oil (34 degrees API). The production of the EWT, estimated at 10,000 bpd, will be stored initially in FSO Avaré and then transported to the mainland on shuttle tankers.

The Tiro and Sídon EWT will be carried out in two stages: (i) production in well 1-SPS-56, in the Tiro accumulation, for a period of 12 months; (ii) testing at well 1-SPS-57, in the Sídon area, for an equal period.

Exploratory activities in the region still includes the drilling of the well SCS-13, located east of Tiro and Sidon, at block BM-S-12, over the second quarter of 2010. Drilling activity already performed in this well indicated the presence of hydrocarbons and potential in the pre-salt area, which is the objective of this new drilling. The results are expected for the second half.

Regarding the EWT of Tiro and Sidon, the results of the test, added to the evaluation of nearby fields, such as Cavalo Marinho, Caravela, and Estrela do Mar, will be important to define both the future development of the discoveries made in the Southern Pole of the Santos Basin and the feasibility of installing an integrated production system in the region.


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