Oseberg South

Oseberg South
Location of Oseberg South
Country	Norway
Location	North Sea
Block(s)	30/6, 30/9
Offshore/onshore	offshore
Coordinates	60°23′24.62″N 2°47′49.06″E / 60.3901722°N 2.7969611°E / 60.3901722; 2.7969611Coordinates: 60°23′24.62″N 2°47′49.06″E / 60.3901722°N 2.7969611°E / 60.3901722; 2.7969611
Operator(s)	Statoil
Partners	Statoil (49.3%) Petoro (33.6%) Total S.A. (10%) ExxonMobil (4.7%) ConocoPhillips (2.4%)
Field history
Discovery	1984
Start of production	2000
Production
Recoverable oil	346 million barrels (~4.72×10^7 t)
Recoverable gas (billion cubic meters)	16
Producing formations	Jurassic sandstones

Oseberg South (Norwegian: Oseberg Sør) is an offshore oil field in the North Sea, located 115 kilometres (71 mi) from the coastline and 13 kilometres (8.1 mi) south of Oseberg Oil Field. Oseberg Sør was discovered in 1984.^[1] The field was developed with a fixed production, drilling and quarters (PDQ) facility and is operated by Statoil. The first stage phase processing is done at the Oseberg Øst platform. The second and third phase processing of oil is done at the Oseberg Field Center and it is then transported to Sture terminal in Norway through the Oseberg Transport System. The development of the Oseberg Sør was approved in 1977. Recent updates include approval of J structure^[2] which started producing in November 2006 and Oseberg Sør G Sentral which has been developed in 2009.^[3]

Technical features

The sea depth at location is 100 m (330 ft). The platform at Oseberg Sør which was built for drilling of 30 wells^[4] includes a 125-metre (410 ft) tall steel jacket which supports a total topside dry weight of nearly 14,000 tonnes. It also includes a 100 bed capacity living quarters, first stage processing facilities, power generation and utility systems and a high performance drilling package. The field produces up to 14,900 cubic metres (530,000 cu ft) of oil, 3.4 million cubic metres (120×10^⁶ cu ft) of natural gas and 12,800 cubic metres (450,000 cu ft) of water per day^[5] The field consists of ten accumulations within Jurassic sandstones, all in separate structures. The reservoirs lie at a depth of 2,200–2,800 metres (7,200–9,200 ft). Production lifetime is estimated at 20 years.^[3][6] It is believed to contain a total of 346 million barrels (55.0×10^⁶ m³) of recoverable oil and up to 16 billion cubic metres (570×10^⁹ cu ft) of recoverable gas.^[4]

See also

• Oseberg Oil Field
• Oseberg Øst
• Sture terminal
• Oseberg Transport System
• Grane oil field
• Grane oil pipeline
• North Sea oil

References

1. ^ Offshore Technology. Oseberg Sør, North Sea Northern, Norway
2. ^ "Drilling of 2 Production Wells to Commence at Oseberg Sor J Structure". Rigzone. 5 December 2008. https://www.rigzone.com/news/article.asp?a_id=70386. Retrieved 16 December 2009. 
3. ^ ^{a b} OLJEDIREKTORATET Norwegian Petroleum Directorate
4. ^ ^{a b} "Oseberg Sør officially opens" (Press release). Norsk Hydro. 1 March 2001. http://www.hydro.com/en/Press-room/News/Historic-news-archive/2001/March/Oseberg-Sor-officially-opens/. Retrieved 16 December 2009. 
5. ^ Dr Friedrich Schneider (September–October 1999). "Automation central to Oseberg Sør rig". Drilling Contractor. http://www.iadc.org/dcpi/dc-sepoct99/s-oseberg.pdf. Retrieved 16 December 2009. 
6. ^ Termotite data on Oseberg Sør Project

External links

• Picture of installation of topsides at Oseberg Sør
• Statoil website
• Map of Oseberg field from OLJEDIREKTORATET Norwegian Petroleum Directorate