Project Profile
Location: Alaminos Canyon Block 857, Gulf of Mexico
Fields: Great White, Tobago, Silvertip
Water depth: 2,300 - 3,000 m (7,546 - 9,843 ft)
Perdido capacity: 100,000 barrels of oil and 200 million cubic feet of gas per day (5.7mcm)
Start-up year: 2010
Perdido is an oil and gas spar production facility located at Alaminos Canyon Block 857 approximately 220 miles (354 km) from Galveston, Texas in the Gulf of Mexico. Perdido is the world’s second-deepest oil and gas production hub. The project deployed innovation to overcome challenges such as extreme water depth, rugged sea-floor terrain, and low-temperature and low-pressure producing zones.
The hub produces from three fields: Great White, Silvertip and Tobago. The fields are situated on the Perdido fold belt, offshore in the deep northwestern section of the Alaminos Canyon outer continental shelf area. In order to develop the wells in ultra deep depths and reduce costs, the companies decided to use a common processing hub, Perdido. The spar incorporates drilling and capabilities to gather, process and export production within a 30 mile (48 km) radius. Perdido is moored in around 2,450 m (8,000 ft) of water, making it the world’s deepest spar.
The Tobago field started production in 2011 and set a world water depth record for drilling and completing a subsea well 2,934 m (9,626 ft) below water surface.
Operators:
Host platform: Shell 35% (operator), Chevron 37.5%, BP 27.5%
Great White: Shell 33.34% (operator), BP 33.33%, Chevron 33.33%
Sivertip: Shell 40% (operator) and Chevron 60%
Tobago: Shell 32.5% (operator), Nexen 10%, Chevron 30% and Unocal 27.5%
Contractors:
Acergy: Installation of subsea equipment
Alliance Engineering: Topsides design
Baker Hughes: Installed Centrilift XP enhanced run life electrical submersible pumping systems
C & C Technologies: Metrology services
Dockwise Ltd.: Delivery of spar
FMC Technologies: Subsea production equipment
Kiewit: Topsides
Noble Corp.: Workover
Oceaneering: Fabrication and installation of subsea hardware
Technip: Spar facility. (2008)
Heerema Marine Contractors: Mooring anchor pile
Sub contractor:
First Subsea: Ball and taper mooring connectors for Technip