Peregrino

Peregrino
Peregrino oilfield
Country Brazil
Region Campos Basin
Block(s) BM-C-7
Offshore/onshore offshore
Operator(s) Statoil
Partners Statoil, Sinochem
Field history
Discovery 2004
Start of development 2007
Start of production 2011
Production
Estimated oil in place 2,300 million barrels (~3.1×10^8 t)

Peregrino is an oil field (block BM-C-7) located offshore Brazil east of Rio de Janeiro in the southwest part of the Campos Basin area, with about 2.3 billion barrels (370×10^6 m3) of oil in place within the sanctioned area - discovered in 2004. The field was formerly known as Chinook.

Contents

Reserves and production

The location is 53 miles (85 km) of the coast situated in 328 to 390 feet (100 to 120 m) of water. Peregrino is a heavy crude oil of 13. API and with high viscosity. Sulfur content is 1.8% which is considered medium sour. Estimated recoverable volume of crude oil is 300 million barrels (48×10^6 m3) to 600 million barrels (95×10^6 m3). First oil expected for early 2011, where 5 wells are expected in production and production should reach its plateau of 100,000 barrels per day (16,000 m3/d) within the first year targeting production of some 120,000 barrels per day (19,000 m3/d) in 2012. The field will be completed in three phases and include approximately 60 wells; phase one of the project includes 37 wells; 30 production wells and 7 water injection wells. The temperature of the oil, gas, water and sand from the field is 79.6°C in the reservoir and 60-66°C on arrival in the ship, and then heated to 130-150°C for processing (separation). After this the temperature is kept at 65-70°C to keep the oil liquid.[1]

Development

The field was originally planned to be operated by Anadarko with Statoil as 50%; however, on March 4, 2008 Statoil bought Anadarko's 50% share of the oil field for US$1.8 billion. At the time of acquiring the license, the field's recovery factor was estimated to be 9%. However, with the current reservoir depletion plan of the field calling for the use of produced water injection and rock compaction, Peregrino's recovery factor has increased to 20%. On 21 May 2010, Statoil agreed to sell 40% stake to Sinochem.[2]

The first phase of the development includes two drilling and wellhead platforms and a ship-shaped floating production, storage and off-take unit (FPSO) called Maersk Peregrino built in Singapore. It is 345m long, cost 1B euros and is powered by 72MW steam turbines fueled by gas from the field.[1]

The platforms are tied back to the FPSO by flowlines and power umbilicals. Project requires extensive sub-surface and reservoir management skills such as produced water injection, horizontal wells and flow assurance to sustain the project over a longer-term.

Contractors

The project commenced in February 2007 when South Atlantic Holding and Maersk Oil signed an agreement to perform a FEED study for the project. Shortly after the FEED, a contract was awarded to Maersk Contractors (now Maersk FPSOs) for the provision of the FPSO and for 15 years of operation of the FPSO.

Aker Solutions will perform the mooring installation work – the first marine installation job for Aker Solutions in Brazil. The scope of work comprises planning and installation of a submerged turret production (STP) buoy with mooring system using ten mooring lines with 90-tonne piles, heavy chain and wire. The operations were scheduled to be conducted during Q4 2009.[dated info]

APL (a subsidiary of BW Offshore) will provide the submerged turret production and mooring system for the Peregrino FPSO.

Kiewit Offshore Services was selected for the engineering, procurement, and construction of the two large 6,500-ton decks and two jackets, 6,600 and 7,000 tons respectfully. Additional scope also includes the fabrication of two piles weighing a total of 5,600 tons.

Subsea 7 received a contract for the engineering, procurement, construction and installation of the pipelines connecting the two platforms to the FPSO. Another contract was awarded to Kiewit Offshore Services Ltd. for the supply of two drilling platforms for the field.

FMC Technologies will manufacture and install the surface wellheads and surface production trees for the Peregrino project.

Wood Group Brasil was selected by Statoil to provide operations, maintenance and modification services for the two Peregrino wellhead platforms. The five-year contract is valued at approximately US $60 million. Wood Group Brasil's project scope includes both offshore services and onshore support, and covers all production processes and equipment except drilling services. The project will be managed by Wood Group Brasil's existing management team, and more than 50 local workers will be hired for operations, maintenance, engineering and other positions.

Siem Consub will provide maritime support for the initial 2 years under a renewable contract for an additional year. The PSV-ship will be available beginning in the first quarter of 2010. Seawell, a Seadrill subsidiary, will manage the drilling campaign at a cost of US$90 million.

References

  1. ^ a b Andersen, Kasper Brøndgaard. Maersk Peregrino (in Danish) Ing.dk, 22 November 2010. Functional drawings Retrieved: 22 November 2010.
  2. ^ "Sinochem snaps up Peregrino stake". Upstream Online (NHST Media Group). 2010-05-21. http://www.upstreamonline.com/live/article215802.ece. Retrieved 2010-05-22. 

External links


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