• Source: East Shetland Basin

The East Shetland Basin is a major oil-producing area of the North Sea between Scotland and Norway. It extends from 60°10′ N to 61°45′ N and 1°36′ E to 3°0′ E. It is 111.3 km north–south and at its maximum 55.8 km east–west.

Oil produced in the UK area is landed at Sullom Voe Terminal in the Shetland Islands. Associated gas flows via the FLAGS pipeline to St Fergus Gas Terminal.




Formation


The North Sea Basin is a major oil and gas producing area that has been exploited by Denmark, Norway and the United Kingdom. The basin was formed in the Mesozoic period by tectonic activity during the break up of Eurasia and North America. The northern area of the basin, where significant oil reserves are situated, is known as the Viking Graben. Tilted fault blocks and basins at the northern end of the Viking Graben is the area known as the East Shetland Basin. The oil fields are located at the crests of the blocks, which are of the Triassic to Middle Jurassic age. The source of the oil and gas is the Upper Jurassic (Kimmeridge Clay) shales.




Oil and Gas Fields


The UK East Shetland Basin includes the following oil and gas fields and accumulations:

Alwyn North
Barra
Brent
Broom
Causeway
Cheviot
Cladhan
Conrie
Cormorant
Deveron
Don
Dunbar
Eider
Ellon
Falcon
Fionn
Grant
Harris
Heather
Hudson
Hutton
Islay
Jura
Kestrel
KrakenLyell
Magnus
Merlin
Murchison
Ninian
Nuggets
Orlando
Otter
Pelican
Penguin
Playfair
Rhum
Strathspey
Tern
Thistle
Ythan




Quadrants and Blocks


The UK part of the East Shetland Basin extends over the following Quadrants and Blocks:

210/15, 210/20, 210/24, 210/25, 210/30
211/7a, 211/8, 211/11 to 211/15 (inclusive), 211/21 to 211/30 (inclusive),
2/5, 2/10, 2/15
3/1 to 3/20 (inclusive), 3/24
To the East of the UK/Norway median line the East Shetland Basin extends over the following Norwegian Quadrants:

25, 30, 31, 33, 34, 36.
This includes the following fields: Statfjord, Snorre, Alpha, Beta, Delta, Gullfaks.




Hydrography


As the northern limit of the North Sea the East Shetland Basin plays an important role in the inflow and outflow of water to and from the North Sea. The East Shetland Atlantic Inflow is an alternating inflow of water from the North Atlantic current and the continental shelf edge Slope current. These enter the East Shetland Basin from the north and flow anti-clockwise. The alternating flow affects the salinity of the water which in turn affects the population of zooplankton species such as Calanus finmarchicus which increase in the Spring. Part of the Slope Current enters the East Shetland Basin from the north east and flows south to the east of the north-flowing Norwegian coastal current. The Fair Isle Current originates on the east of the Shetland Islands and flows south in an anti-clockwise pattern.




East Shetland Platform


The East Shetland Platform is the area between East Shetland Basin and the Shetland Islands. It includes Quadrants 1, 2, 209 and 210. The Platform includes rocks of the Palaeozoic and Triassic successions which have significant variation of thickness. This may indicate areas where hydrocarbons are trapped.




See also


Energy policy of the United Kingdom
Energy use and conservation in the United Kingdom
List of North Sea Oil and Gas Fields




References

Kata Kunci Pencarian:

• Skotlandia
• Cakupan Google Street View
• Daftar tempat di Britania Raya/Hen-Hh
• East Shetland Basin
• Sullom Voe Terminal
• Brent oilfield
• Northern Isles
• Shetland
• Eurocopter AS332 Super Puma
• Penguin Island (South Shetland Islands)
• Murchison oilfield
• Wildrake diving accident
• Petroleum