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North Sea oil is a mixture of hydrocarbons, comprising liquid petroleum and natural gas, produced from petroleum reservoirs beneath the North Sea.
Ekofisk is an oil field in block 2/4 of the Norwegian sector of the North Sea about 320 km (200 mi) southwest of Stavanger. Discovered in 1969 by Phillips Petroleum Company, it remains one of the most important oil fields in the North Sea. This was the first discovery of oil after the drilling of over 200 exploration wells in the North Sea "triggered" by the Groningen gas field discovery. In 1971, Phillips started producing directly to tankers from four subsea wells. Oil production is planned to continue until at least 2050.
Gullfaks is an oil and gas field in the Norwegian sector of the North Sea operated by Equinor. It was discovered in 1978, in block 34/10, at a water depth of 130-230 meters. The initial recoverable reserve is 2.1 billion barrels, and the remaining recoverable reserve in 2004 is 234 million barrels. This oil field reached peak production in 2001 at 180,000 barrels per day (29,000 m3/d). It has satellite fields Gullfaks South, Rimfaks, Skinfaks and Gullveig.
Oseberg is an offshore oil field with a gas cap in the North Sea located 140 km (87 mi) northwest of the city of Bergen on the southwestern coast of Norway. The field, which is 25 km long by 7 km wide, was discovered in 1979 and its development is known to be one of the significant milestones in emergence of Norway's independent oil and gas industry. The Oseberg field was named after Oseberg ship, one of Norway's most significant archeological discoveries. The ancient Viking ship from the early 9th century was discovered in a 1904 historical excavation of a burial mound at the Oseberg Farm, south of Oslo.
Troll is a natural gas and oil field in the Norwegian sector of the North Sea, one of the biggest in the North Sea, holding 40% of Norway’s gas – it also possesses significant quantities of oil, in thin zones under the gas cap, to the west of the field. The field as a whole consists of the main Troll East and Troll West structures in blocks 31/2, 31/3, 31/5 and 31/6, about 65 kilometres (40 mi) west of Kollsnes, near Bergen. Most of the gas lies in Troll East.
Valhall is an oil field in the Norwegian sector of the North Sea. Discovered in 1975, production began in 1982 and is expected to continue until 2050. Valhall is located in 70 metres of water. It produces from chalk in the Tor and Hod Formations of Late Cretaceous age. The reservoir depth is approximately 2,400 metres.
The Forties Oil Field is the second largest oil field in the North Sea, after the Clair oilfield, which is located 110 miles east of Aberdeen. It was discovered in 1970 and first produced oil in 1975 under ownership of British Petroleum, now called BP.
Frigg gas field is a natural gas field on Norwegian block 25/1 in the North Sea, on the boundary between the United Kingdom and Norway. The field is named after the goddess Frigg. King Olav V of Norway officially opened production on 8 May 1978. Production was closed on 26 October 2004. The field is situated 230 kilometres (140 mi) northwest of Stavanger. Operator for the field was the French oil company Elf Aquitaine, which merged and changed name to Total S.A.
Tyra Field is the largest gas condensate field in the Danish Sector of the North Sea. It was discovered in 1968 and production started in 1984. The field is owned by Dansk Undergrunds Consortium, a partnership between Total, BlueNord and Nordsofonden, and operated by Total. The reservoir depth is about 2,000 metres (6,600 ft) and it covers area of 90 kilometres (56 mi) in the water depth of 37–40 metres (121–131 ft). The Tyra field has a number of satellite fields, including Roar, Svend and Tyra Southeast fields.
The L4-L7 gas fields are significant natural gas producing fields in the Netherlands sectors L4 and L7 of the North Sea. They are operationally one complex which started producing gas from the L7 main platform hub in 1977 and was still partly operational in 2021.
The Beryl oil field is a major crude oil production field in the UK sector of the northern North Sea, 335 km north east of Aberdeen. Production of oil started in 1976 and the field is still producing oil and gas (2021).
The K14-K18 gas fields are significant natural gas producing areas in the Netherlands sector of the North Sea, about 120 km north west of Den Helder. These five contiguous fields started producing gas in 1977 and are still operational.
The Tyne, Trent and Tors gas fields are depleted natural gas reservoirs and former gas production facilities in the southern North Sea, centred around the Trent installation about 115 km east of Flamborough Head, Yorkshire. The fields produced gas from 1996 to 2020.
Halfdan is a significant oil and gas field in the south-western part of the Danish sector of the southern North Sea. The field has been in production since 1999. The Sif and Igor fields are satellites to Hallfdan.
The Edda oil and gas field was a crude oil and associated gas production field in the Norwegian sector of the central North Sea. Production of oil and gas started in 1979, peak oil and gas was achieved in 1980. Production ceased in 1998 and the installation and field infrastructure were dismantled in 2012.
The Albuskjell oil and gas field was a crude oil and associated gas production field in the Norwegian sector of the central North Sea. Production of oil and gas started in 1979, peak oil and gas was achieved in 1982. Production ceased in 1998 and the field installations were dismantled by 2013.
The Cod oil gas and condensate field was a gas and associated natural gas liquids (NGL) production field in the Norwegian sector of the central North Sea. Production of oil and gas started in 1977, peak gas and NGL was achieved in 1980. Production ceased in 1998 and the field installation was dismantled in 2013.
The Odin gas field was a gas producing field in the Norwegian sector of the central North Sea. Production of gas started in October 1984, the peak gas production of 360 mmcfd was achieved in 1985. Production ceased in 1994 and the field installation was dismantled in 1997.
The Eldfisk oil and gas field is a crude oil and gas producing field in the Norwegian sector of the central North Sea. Production of oil and gas started in 1979 and peak oil and gas production was achieved in 1980. The facilities have been extended and are still operational.
The Embla oil and gas field is a high-pressure high-temperature (HPHT) crude oil and associated gas producing field in the Norwegian sector of the central North Sea. Production of oil and gas started in 1993, peak oil and gas was achieved in 1994, and the field is still operational.
References
- 1 2 3 4 5 6 7 Norwegian Petroleum. "Tor field, Norwegian Petroleum" . Retrieved 12 July 2024.
- 1 2 3 4 5 Norsk Oljemuseum. "Oil and Gas fields in Norway Tor field, Norsk Oljemuseum" (PDF). Retrieved 12 July 2024.
- ↑ OSPAR. "OSPAR Inventory of Offshore Installations - 2021" . Retrieved 12 July 2024.
- 1 2 Oilfield Publications Limited (1985). The North Sea Platform Guide. Ledbury: Oilfield Publications Limited. pp. 184–6.