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Åsgard Transport is a pipeline that transports gas from the Åsgard field to Kårstø in Rogaland.
From
Åsgard ESB
To
Kårstø
Length
720 km
Diameter
42″
TSP
Equinor
Operator
Gassco
Europipe runs for 620 km from the Draupner E riser platform in the Norwegian Sea to Dornum on the German coast. The final section of this 40-inch pipeline is laid through a tunnel under the protected Wattenmeer wetlands.  A 42-inch pipeline connects Dornum with the metering station at Emden, a distance of 48 km. These pipelines started up in 1995.
From
Draupner E
To
Dornum/Emden
Length
667 km
Diameter
40″
TSP
Equinor
Operator
Gassco
Europipe II transports gas from Kårstø north of Stavanger to the Europipe Receiving Facilities (ERF) at Dornum in Germany. This 42-inch pipeline is 658 km long and started up in 1999.
From
Kårstø
To
Dornum
Length
660 km
Diameter
42″
TSP
Equinor
Operator
Gassco
Franpipe connects the Draupner E platform in the North Sea to Dunkerque in northern France. This 42-inch pipeline is 840 km long and first delivered gas on 1 July 1998.
From
Draupner E
To
Dunkerque
Length
840 km
Diameter
42”
TSP
Equinor
Operator
Gassco
The Gjøa gas pipeline connects this field in the North Sea with the Flags transport system in the UK sector. From there, the gas continues to the St Fergus terminal in Scotland. Measuring 28 inches in diameter, the Gjøa gas pipeline is 131 km long and started up in 2010.
From
Gjøa
To
FLAGS
Length
131 km
Diameter
28”
Operator
Gassco
Haltenpipe transports gas from the Heidrun field in the Norwegian Sea to a plant at Tjeldbergodden in Møre og Romsdal county. Running for 250 km, this 16-inch pipeline started up in December 1996.
From
Heidrun
To
Tjeldbergodden
Length
250 km
Diameter
16″
TSP
Equinor
Operator
Gassco
The Kvitebjørn gas pipeline runs from this field in the North Sea to the processing plant at Kollsnes, near Bergen. After being processed, the gas continues in the export pipeline system while the separated condensate is piped to the fractionation plant at Mongstad further north. The 30-inch Kvitebjørn gas pipeline is 147 km long and started up in 2004.
From
Kvitebjørn
To
Kollsnes
Length
148 km
Diameter
30″
TSP
Equinor
Operator
Gassco
Langeled ranks as the world’s longest underwater gas pipeline. It runs from the processing plant at Nyhamna near Kristiansund via the Sleipner field in the North Sea to the terminal at Easington in the UK – a total distance of 1 116 km. The Nyhamna-Sleipner leg is 42 inches in diameter and started up in 2007, while Sleipner-Easington is 44 inches and started up in 2006.
From
Nyhamna
To
Sleipner
Length
628 km
Diameter
42″
TSP
Equinor
Operator
Gassco
Langeled ranks as the world’s longest underwater gas pipeline. It runs from the processing plant at Nyhamna near Kristiansund via the Sleipner field in the North Sea to the terminal at Easington in the UK – a total distance of 1 116 km. The Nyhamna-Sleipner leg is 42 inches in diameter and started up in 2007, while Sleipner-Easington is 44 inches and started up in 2006.
From
Sleipner
To
Easington
Length
543 km
Diameter
44″
TSP
Equinor
Operator
Gassco
The Norne Gas Transport System (NGTS) connects the Norne field in the Norwegian Sea to the Åsgard Transport pipeline. The Norne Gas Transport System is 126 km long, has a diameter of 16 inches, and was put into operation in February 2001.
From
Norne
To
Årsgard Transport
Length
128 km
Diameter
16″
TSP
Equinor
Operator
Gassco
Norpipe is a transport system which carries gas from the Ekofisk field in the North Sea to Germany. Running for 443 km, this 36-inch pipeline was the first to link the Norwegian continental shelf with Europe when it started up in 1977. Statpipe was tied into Norpipe in 1985.
From
Ekofisk
To
Emden
Length
440 km
Diameter
36″
Operator
Gassco
The Oseberg gas transport (OGT) pipeline connects this field with Heimdal, where the gas is split between the Vesterled line to St Fergus in Scotland and Statpipe. The latter ties into Norpipe and terminates at Emden in Germany. OGT is 109 km long and 36 inches in diameter.
From
Oseberg
To
Heimdal
Length
110 km
Diameter
36”
TSP
Equinor
Operator
Gassco
Polarled carries gas from the Aasta Hansteen field in the Norwegian Sea to the Nyhamna processing plant near Kristiansund. With a diameter of 36 inches, this pipeline is 482 km long and started up in 2018.
From
Aasta Hansteen
To
Nyhamna
Length
482 km
Diameter
36″
Operator
Gassco
The Statpipe system comprises four pipelines in all. These carry gas from the Statfjord and Gullfaks fields, via the Kårstø processing plant north of Stavanger, the Draupner S platform and Norpipe, to Emden in Germany. The whole system is 892 kilometres long, with its pipelines varying in diameter from 28 to 36 inches. It became operational in several phases from 1985-86. Statpipe’s Statfjord-Kårstø and Kårstø-Draupner legs were the first pipelines to cross the deep Norwegian Trench. This had been seen as an insurmountable barrier for pipelines between the continental shelf and mainland Norway. Statpipe also runs a short distance over land to and from Kårstø, and is laid in trenches and tunnels across three fjords.
From
Statfjord / Kårstø / Draupner S
To
Kårstø / Draupner S / Ekofisk
Length
228 / 203 / 155 km
Diameter
28” / 36” / 36”
TSP
Equinor
Operator
Gassco
From
Kollsnes
To
Sture
Length
8 km
Diameter
8″
Operator
Gassco
From
Edvard Grieg
To
SAGE pipeline
Length
94 km
Diameter
16″
Operator
Gassco
Vesterled runs from the riser platform on the Heimdal field to the St Fergus terminal in Scotland. The Frigg Norwegian Pipeline (FNP) was originally laid to transport gas from this field to the UK market, starting in 1976. When Frigg ceased production, the 32-inch pipeline was adapted for use by other fields from 2001 and renamed Vesterled. It is 360 km long.
From
OGT/Statpipe
To
St Fergus
Length
361 km
Diameter
32″
Operator
Gassco
From
OGT/Statpipe
To
St. Fergus
Length
361km
Diameter
32
The Vestprosess facility is located at the Mongstad Oil Refinery. Vestprosess handles NGL (natural gas liquids) transported through the Vestprosess pipeline from Kollsnes. The facility separates the NGL into naphtha and LPG. The naphtha is used in the Mongstad oil refining process, while the fractionated propane and butane from the LPG are exported.
From
Kollsnes
To
Mongstad via Sture
Length
55 km
Diameter
12″
TSP
Equinor
Operator
Gassco
The Zeepipe system was built to transport gas from the Troll field in the North Sea to the European market. Its phased development covered three pipelines connecting the Kollsnes processing plant near Bergen to the Belgian terminal at Zeebrugge. Starting up in 1993, phase one covered a 40-inch pipeline running for 814 km from the Sleipner area of the North Sea to Zeebrugge, and a 30-km link between Sleipner and the Draupner S riser platform. The second phase involved two 40-inch pipelines from Kollsnes, where Troll gas is landed and processed. One runs to the Sleipner area and the other to Draupner E. Both are just over 300 km long. Gas from Troll thereby travels via Kollsnes and Sleipner/Draupner to Zeebrugge. The system was completed in 1997.
From
Sleipner
To
Draupner S / Zeebrugge
Length
39 km / 808 km
Diameter
40”
Capacity
55.0 / 42.2 MSm3/d
TSP
Equinor
Operator
Gassco
The Zeepipe system was built to transport gas from the Troll field in the North Sea to the European market. Its phased development covered three pipelines connecting the Kollsnes processing plant near Bergen to the Belgian terminal at Zeebrugge. Starting up in 1993, phase one covered a 40-inch pipeline running for 814 km from the Sleipner area of the North Sea to Zeebrugge, and a 30-km link between Sleipner and the Draupner S riser platform. The second phase involved two 40-inch pipelines from Kollsnes, where Troll gas is landed and processed. One runs to the Sleipner area and the other to Draupner E. Both are just over 300 km long. Gas from Troll thereby travels via Kollsnes and Sleipner/Draupner to Zeebrugge. The system was completed in 1997.
From
Kollsnes
To
Sleipner
Length
299 km
Diameter
40″
TSP
Equinor
Operator
Gassco
The Zeepipe system was built to transport gas from the Troll field in the North Sea to the European market. Its phased development covered three pipelines connecting the Kollsnes processing plant near Bergen to the Belgian terminal at Zeebrugge. Starting up in 1993, phase one covered a 40-inch pipeline running for 814 km from the Sleipner area of the North Sea to Zeebrugge, and a 30-km link between Sleipner and the Draupner S riser platform. The second phase involved two 40-inch pipelines from Kollsnes, where Troll gas is landed and processed. One runs to the Sleipner area and the other to Draupner E. Both are just over 300 km long. Gas from Troll thereby travels via Kollsnes and Sleipner/Draupner to Zeebrugge. The system was completed in 1997
From
Kollsnes
To
Draupner E
Length
300 km
Diameter
40″
TSP
Equinor
Operator
Gassco

The Kårstø processing plant in North Rogaland plays a key role in the transport and processing of gas and condensate from central areas of the Norwegian continental shelf. The purpose of the Kårstø processing plant is to separate the hydrocarbons that arrive mixed in the rich gas pipelines Statpipe and Åsgard Transport. In addition, the Kårstø processing plant receives unstabilised condensate via a pipeline from the Sleipner area.

The gas mixture arriving at Kårstø is separated into the following products: methane, ethane, propane, butane mix, naphtha (natural gasoline) and stabilised condensate. The dry gas, consisting of methane and some ethane, is transported onward through the Statpipe dry gas pipeline and Europipe II. The wet gas products are shipped from the processing plant.

Technical Service Provider (TSP): Equinor

Panorama view of kårstø
Kårstø processing plant

The processing plant at Kollsnes, northwest of Bergen, was commissioned in 1996 as part of the Troll development. Since start-up, the capacity of the Kollsnes facility has been expanded several times, and it now receives gas from fields including Troll, Kvitebjørn and Visund.

During processing at Kollsnes, the gas is dried and compressed before being transported to Europe through the pipeline systems Statpipe, Zeepipe, Europipe I and Franpipe.

Through Vestprosess, the Kollsnes facility is connected to the Mongstad oil refinery via a condensate pipeline.

Technical Service Provider (TSP): Equinor

kollsnes landanlegg dronefoto med hav og sol
Kollsnes landanlegg

The processing plant at Nyhamna in the municipality of Aukra, Møre og Romsdal, was commissioned in 2007. Nyhamna was originally built as an onshore facility for the processing and export of gas from the Ormen Lange field in the Norwegian Sea. Following a significant upgrade, the facility is now capable of processing gas from other fields in the Norwegian Sea connected to the Polarled pipeline.

Technical Service Provider (TSP): Shell

Nyhamna i solnedgang panorama
Nyhamna

At the receiving terminal in Dornum, called Europipe Receiving Facilities (ERF), the pressure of the gas is reduced and the gas is heated up. ERF is controlled from the control room at EMS, which is located 48 km away.

The receiving terminal is located in Dunkerque. Construction of the terminal was completed during the summer of 1998, and regular operation began October 1, 1998.

At the terminal, any liquid residue and solid particles are removed, and the gas is subjected to pressure and temperature regulation. Gas measurement and quality control are performed before the gas is sent on to the downstream transport operator.

The Dunkirk terminal is remotely controlled from the Zeepipe terminal in Belgium, located in Zeebrugge.

About the joint venture

The joint venture Dunkerque Terminal DA was established on February 9, 1995. The joint venture owns the receiving terminal for the Franpipe pipeline. The company as no employees and its work is managed through a ‘Management Committee’. Gassco is the operator of the joint venture and chairs the management committee.

The southern part of Langeled is a 44 inch pipeline from the Sleipner hub to the receiving terminal at Easington on the English east coast.

At the receiving facility the gas is regulated to the correct pressure and temperature before being sent further downstream to the transport operator.

Gassco, Easington. Photo: Haakon Nordvik.

Operator: Gassco

In Emden, quality and quantity measurement of gas is carried out at the terminal facility called Europipe Metering Station (EMS), before it is handed over downstream to transport operators.

At the Norsea Gas Terminal in Emden, pressure and temperature regulation of the gas is carried out before it passes through a facility for hydrogen sulfide (H2S) treatment. Gas measurement and quality control are performed before the gas is delivered to downstream transport operators from the terminal.

The receiving terminal in St. Fergus in Scotland is located 61 kilometres north of Aberdeen and became operational in 1977.

The terminal receives dry gas through the Vesterled system in addition to rich gas from the British Frigg (FUKA) pipeline. Gassled owns and uses part of the technical installations at the facility.

Operator: Gassco
Technical Service Provider (TSP): NSMP Operations Limited / PX Limited

Zeepipe Terminal JV is a receiving terminal located in the Zeebrugge port area, around 5 kilometres from the landing site.

At the terminal, any liquid residue and solid particles are removed, and the gas is subjected to pressure and temperature regulation. Gas measurement and quality control are performed before the gas is sent on to the downstream transport operator.

The Zeepipe terminal also remotely controls the operational activities carried out at the receiving terminal in Dunkirk, France, the endpoint of the Franpipe pipeline.


About the joint venture

Zeepipe Terminal JV was established on September 7, 1988. The joint venture owns the receiving terminal for the Zeepipe system. The joint venture has no employees and work is organised through the ‘Management Committee’. Gassco is the operator for the joint venture and chairs the management committee.

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Yggdrasil

Onshore facilities

  • Kårstø gas processing plant, Norway
  • Kollsnes gas processing plant, Norway
  • Nyhamna gas processing plant, Norway
  • Vestprosess gas processing plant, Norway
  • Tjeldbergodden gas receiving facilities
  • Emden receiving terminal, Germany
  • Dornum receiving terminal, Germany
  • Dunkerque receiving terminal, France
  • Zeebrugge receiving terminal, Belgium
  • St Fergus receiving terminal, UK
  • Easington receiving terminal, UK

Riser/compressor platforms

  • Draupner S/E
  • Sleipner Riser

Areas and tariffs

The transport system is divided into areas, with fixed tariffs for transport and/or processing within each of these.

Gassled areas

A Statpipe rich gas
B Åsgard Transport rich gas
C Kårstø processing plant
D Dry gas, including platforms and receiving terminals
E Kollsnes processing plant
F Tampen Link Pipeline
G Kvitebjørn Pipeline
H Norne Gas Transport System
I Gjøa Gas Pipe

Other areas

K Haltenpipe
L Utsira High Gas Pipeline
M Vestprosess Pipeline
N Vestprosess Mongstad
O Polarled
P Nyhamna