Petrobras lets contracts for Tambau, Urugua subsea lines

Uchenna Izundu
OGJ International Editor

LONDON, Mar. 5 -- Petroleo Brasilerio SA (Petrobras) has awarded a $200 million engineering and installation contract to Subsea 7 Inc. for pipelines and subsea equipment in Brazil's deepwater Tambau and Urugua oil and gas fields in the Santos basin and its P-56 developments in Campos basin, all off Brazil.

Subsea 7 will design, install, and commission 14.5 km of dual 12-in., client-supplied gas flowlines and associated subsea equipment for Tambau and Urugua fields.

The semisubmersible P-56 platform, which will handle production from Marlim Sul oil field's Module 3, is in the Campos basin 320 km east off the Rio de Janeiro state coast in 1,670 m of water. Work there includes 13 km of dual oil export pipelines, which will connect the P-56 platform to the P-38 floating production, storage, and offloading vessel, and 8.6 km of 10-in. steel gas export pipeline, which will extend from the P-56 platform to the semisubmersible P-51 platform. Subsea 7 will supply these pipelines and pipeline end terminations.

Offshore pipeline installation will take place in 2010 using one of Subsea 7's pipelay vessels.

Urugua and Tambau fields would anchor another production pole at Block BS-500 about 100 miles off Rio de Janeiro. Anticipated production there in 2011 is estimated at 150,000-200,000 b/d of oil and 775 MMcfd of gas. Urugua and Tambau are in 3,280-4,600 ft of water. Urugua's reserves are 250 million bbl of 33° gravity oil and 1.3 tcf of gas, and Tambau's are 1.8 tcf of gas (OGJ Online, Nov.26, 2006).

The P-56 semisubmersible platform will be capable of processing 170,000 bbl of liquids and 100,000 bbl of 16° oil, and 6 million cu m of gas. It will operate 22 wells, 11 of which are oil and gas producers and 11 water injectors. It will start commercial operations in late 2010.

Contact Uchenna Izundu at uchennai@pennwell.com.

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