| Brent System | |
|---|---|
| Location | |
| Country | Scotland, United Kingdom |
| General direction | north-south-west |
| From | North Sea oilfields |
| Passes through | Cormorant Alpha |
| To | Sullom Voe Terminal |
| General information | |
| Type | oil |
| Operator | TAQA Bratani |
| Technical information | |
| Length | 147 km (91 mi) |
| Maximum discharge | 100,000 bbl/d (16,000 m/d) |
| Diameter | 36 in (914 mm) |
The Brent System pipeline transports oil from the North Sea oilfields via Cormorant Alpha to the Sullom Voe Terminal in Shetland, Scotland. Since 3 August 2009, it is operated by Abu Dhabi National Energy Company replacing the previous operator Royal Dutch Shell. The Brent system is jointly owned by 21 companies.
Oil transportation system
Oil is transported from 20 oilfields, including:
- Thistle
- Murchison
- Hutton
- North West Hutton
- Dunlin
- Brent A, B, C & D
- Cormorant Alpha
- North Cormorant
- Tern
- Eider
Pipelines
The Cormorant A to Sullom Voe pipeline is 36 inches (910 mm) diameter steel (API 5L X60) of 147 kilometres (91 mi) in length. It has capacity of 100,000 barrels per day (16,000 m/d). The Brent C to Cormorant A pipeline is 30 inches (760 mm) in diameter and 35 kilometres (22 mi) long.
Other oil pipelines are:
| Pipeline number | From | To | Diameter (inches) | Length (km) |
|---|---|---|---|---|
| PL001 | Brent C | Cormorant A | 30 | 35.9 |
| PL049 | Brent A | Brent Spar | 16 | 2.8 |
| PL048 | Brent B | Brent Spar | 16 | 2.3 |
| PL045 | Brent B | Brent C | 24 | 4.6 |
| PL046 | Brent D | Brent C | 20 | 4.0 |
| PL1955 | Brent A | Brent B | 14 (flexible) |
The specification for crude oil transported in the Brent system is as follows:
| Parameter | Value |
|---|---|
| Entry point | Cormorant A |
| Exit point | Sullom Voe terminal |
| Crude oil | Non-sour |
| Base sediment and water | 5% |
| True vapour pressure at entry | 115 psia @ 100 °F |
| True vapour pressure at exit | 220 psia @ 100 °F |
| Hydrogen sulfide | 25 mg/l |
| Carbon dioxide | 251 mg/l |
Production
Oil production from the Brent field from 1976 to 1983 was as follows (1000 barrels):
 | Graphs are unavailable due to technical issues. Updates on reimplementing the Graph extension, which will be known as the Chart extension, can be found on Phabricator and on MediaWiki.org. |
Decommissioning
Shell UK Limited propose to decommission the Brent Field pipelines in the mid-2020s.
References
- ^ "Taqa takes Brent pipe reins". Upstream Online. NHST Media Group. 3 August 2009. Retrieved 6 August 2009.
- Christopher Johnson, Barbara Lewis (3 August 2009). "Abu Dhabi firm says becomes N. Sea Brent operator". Reuters. Archived from the original on 4 January 2013. Retrieved 6 August 2009.
- ^ Shell UK Limited, Brent field pipelines decommissioning programme (2020)
- Taqa Brent System
- Oilfield Publications Limited (1985). The North Sea Platform Guide. Oilfield Publications Limited. p. 83.
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