Ninian pipeline

Ninian Pipeline
Ninian Pipeline
Location
Country	United Kingdom
Province	East Shetland Basin
From	Ninian Central platform
Passes through	North Sea
To	Sullom Voe Terminal
General information
Type	oil
Partners	BG, BP, CNR International, Chevron Corporation, Eni, Lundin Petroleum, Nippon Oil, Total S.A.
Operator	BP
Commissioned	1978
Technical information
Length	175 km (109 mi)
Maximum discharge	0.91 million barrels per day (~4.5×107 t/a)
Diameter	36 in (914 mm)

The Ninian Pipeline is a 175 kilometres (109 mi) long crude oil pipeline, which runs from the Ninian Central platform in the northern North Sea to the Sullom Voe Terminal in Shetland Islands of Scotland.

Specification

The Ninian pipeline was laid in July 1976. It is a X65 steel pipeline with an outside diameter of 36 inches (910 mm) with a wall thickness of 0.75 and 0.875 inches.[1]

The pipeline has a corrosion coating and a 65 mm concrete buoyancy coating. There are 200 kg Sacrificial zinc (Impalloy) anodes at ever 12th joint, with a total mass of 150 tonnes. Buckle arrestors comprising steel sleeves 1-inch thick and 2 m long are located every 36th joint.[1]

The pipeline has a maximum design capacity of 910,000 bbl/day and a maximum operating pressure of 1800 psia (124 barg).[1]

Oil production

Ninian Central acted as an oil reception and export hub for a number of installations in the northern North Sea. Ninian Central receives, or received, oil from the following installations:[2]

Ninian Northern (24" oil pipeline)
Ninian Southern (24" oil pipeline)
Strathspey (8" and 10" oil pipelines)
Heather (16" oil pipeline)
Magnus (24" oil pipeline)
Alwyn (12" oil pipeline)
Lyell (12" and 8" oil pipeline)

From the Ninian Central oil processing facilities crude oil flows to the crude oil booster pumps, a metering skid and Main Oil Line (MOL) pumps.[3] After the MOL pumps the fluids were co-mingled with oil from the Strathspey, Ninian Northern, Heather and Magnus platforms.

Oil from the field is exported through the 36" pipeline to Sullom Voe (175 km).[4]

The first oil was received at the Sullom Voe Terminal in December 1978.

Owner and operator

The pipeline was initially operated by BP on behalf of the partner companies.[4]

As of June 2021 the pipeline was operated by EnQuest on behalf of the owners:[5]

EnQuest Heather Limited (Operator) 18.0511%
CNR International (UK) Ltd 63.3271%
Chevron North Sea Ltd 2.2601%
Total E&P UK Limited 16.3616%

External links

Ninian Pipeline System (BP website)

References

Oilfield Publications Limited (1985). The North Sea Platform Guide. Oilfield Publications Limited. p. 564.
Lindop, Paul H (1992). "The Ninian Pipeline System in the UK North Sea - Developments for the second generation of fields". Energy Exploration & Exploitation. 10 (4/5): 247–9, 254.
Ninian Central Process Flow Diagram
Department of Trade and Industry (1994). The Energy Report. HMSO. p. 144. ISBN 0115153802.
"Ninian pipeline system" (PDF). Retrieved 10 November 2022.

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[:0-1] Oilfield Publications Limited (1985). The North Sea Platform Guide. Oilfield Publications Limited. p. 564.

[2] Lindop, Paul H (1992). "The Ninian Pipeline System in the UK North Sea - Developments for the second generation of fields". Energy Exploration & Exploitation. 10 (4/5): 247–9, 254.

[3] Ninian Central Process Flow Diagram

[:1-4] Department of Trade and Industry (1994). The Energy Report. HMSO. p. 144. ISBN 0115153802.

[5] "Ninian pipeline system" (PDF). Retrieved 10 November 2022.