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FPSO Noble Seillean

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FPSO Noble Seillean
Mighty Seillean FPSO
History
NameNoble Seillean
OperatorNoble Corporation
Port of registry Liberia Monrovia
BuilderHarland & Wolff
Laid down18 September 1986
Launched17 June 1988
Acquired4 April 1990
Out of service2015
Identification
FateScrapped 26 September 2015
General characteristics
Class and type
  • Lloyd's: 100A1 Oil Processing Tanker
  • DNV: 648 - Oil Production and Storage Unit
Tonnage
Length249.7 m (819 ft)
Beam37 m (121 ft)
Draught11.54 m (37.9 ft)
Depth19.8 m (65 ft)
Installed power
  • 3 × MAN diesel engines x 4.2 MW
  • 3 × Ruston gas turbines x 3.3 MW
Speed7.3 knots (13.5 km/h; 8.4 mph)
Capacity
  • processing: 25,000 bbl/d (4,000 m3/d)
  • storage: 310,000 bbl (49,000 m3)
Crew85

The FPSO Noble Seillean was a dynamically positioned floating oil production, storage and offloading vessel.

Etymology

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The name Seillean means "honeybee" in Gaelic.

History

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The vessel was designated as a single-well oil production ship (SWOPS) when constructed for BP by Harland and Wolff in 1986–1988.

The process plant, flare and the riser including subsea connection were designed and procured by Matthew Hall Engineering, which also provided construction assistance and commissioning of the oil production facilities. The original specification for the vessel[2] was as follows:

  • Production capability - 15,000 barrels of oil per day, 10,000 barrels of produced water per day, 6 million standard cubic metres of gas per day
  • Production train - 1 train, 2 stages, 1st stage separator pressure 17 barg
  • Storage capacity - 318,000 barrels
  • Living accommodation - 45 berths

The vessel was originally designed for a generic North Sea field well, although it was later assigned the Cyrus oilfield on Block 16/28 in the UK sector of the North Sea. Later she served on the Donan field. Seillean was sold by BP in 1993 to Reading & Bates.[3] Brazilian oil company Petrobras signed a four-year charter for Seillean to develop the Roncador field. Seillean was upgraded and arrived in Brazil in December 1998.[4]

After acquisition of Reading & Bates by Transocean, the vessel was acquired by Frontier Drilling in 2002.[3] She was moved to Jubarte field.[5] In February 2006, the vessel started to operate in the Petrobras-operated Golfinho Field in the Espirito Santo Basin off Brazil.[6] In 2007, Seillean was moved to Pipa 2 oilfield.[7]

In June 2010, Seillean was contracted for oil collection and processing at the Macondo Prospect to deal with the Deepwater Horizon oil spill.

With the purchase of Frontier Drilling in 2010, Seillean was acquired by Noble Corporation. She was renamed Noble Seillean and her flag was changed from Panama to Liberia.[1]

Seillean was sent for scrapping to Alang, India, on 26 September 2015.[8]

Description

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Seillean under construction Belfast 1986
Seillean under construction Dry Dock Belfast 1986
Seillean Flare tower 1986
Seillean subsea operations tower 1986
Seillean process plant 1986

FPSO Seillean was a dynamically positioned monohull floating production, storage and offloading vessel. She was classed by Lloyd's Register of Shipping as a 100A1 Oil Processing Tanker. Seallean was equipped with a flare, two cargo-handling cranes, a process plant inside the hull, a completion tower, and crew accommodation. The vessel had a displacement of 79,600 tonnes, the capacity to process up to 20,000 barrels per day (3,200 m3/d), and to store up to 306,000 barrels (48,700 m3) of oil.[4] Ship's length was 249.7 metres (819 ft), breadth was 37 metres (121 ft), and depth was 20.5 metres (67 ft). She could operate at the water depth of 2,000 metres (6,600 ft). The vessel was equipped with a helideck of 29 by 27.5 metres (95 by 90 ft).[9]

Seillean was powered by a hybrid system of three Ruston gas turbine of 3.3 MW each, and three MAN diesel driven generators 4.2 MW each.[9] These were operated such that when fuel gas was available from production operations, the gas turbine generators generate electrical power. When fuel gas was unavailable, the diesel driven generators provided the power, supplemented by the gas turbine driven generators operating on diesel oil.

Seillean had the following production facilities:

  • 26,500 barrels per day (4,210 m3/d) processing plant. Maximum oil production was 25,000 barrels per day (4,000 m3/d) and maximum produced water handling capability was 15,000 barrels per day (2,400 m3/d).
  • Storage and transport facilities for 310,000 barrels (49,000 m3) of oil.
  • A 6-5/8" riser which can connect to a subsea wellhead.

The crude oil was pumped from the process plant to six cargo oil tanks. During the 1998 upgrade, an offtake reel system was installed which allows ship discharge of cargo to a dynamically positioned shuttle tanker.

References

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  1. ^ a b c "Noble Seillean". Det Norske Veritas. Retrieved 20 November 2011.
  2. ^ Matthew Hall Engineering publicity brochure n.d. but c. 1990
  3. ^ a b Brenner, Noah (17 June 2010). "Hayward says spill 'never should have happened'". Upstream Online. NHST Media Group. Retrieved 17 June 2010.
  4. ^ a b "Roncador, Campos Basin, Brazil". Offshore-Technology. Net Resources International. Retrieved 17 June 2010.
  5. ^ Murillo, Veronica. "Heavy Oil Contributes to Brazil's Energy Self-Sufficiency". Rigzone. Bishop Interactive. Retrieved 16 July 2010.
  6. ^ "Petrobras Begins Testing Operations of FPSO Seillean at Golfinho Field". Petrobras; Rigzone. Bishop Interactive. 17 February 2006. Retrieved 16 July 2010.
  7. ^ "Petrobras Highlights FPSO Usage at OTC". Petrobras; Rigzone. Bishop Interactive. 1 May 2007. Retrieved 16 July 2010.
  8. ^ "Shipbreaking Platform 2015" (PDF).
  9. ^ a b "Seallean, dynamically positioned FPSO. 10 years of deepwater test production in Brazil" (PDF). Frontier Drilling. Retrieved 16 July 2010.
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