Snøhvit is a gas and condensate field northwest of Hammerfest in Northern Norway. It was the first field development in the Barents Sea, after its discovery in 1984. Production began in August 2007.
Hammerfest LNG an onshore plant on the island of Melkøya which receives and processes the natural gas from Snøhvit through a 143 km pipeline from the Barents Sea. The plant cools the gas to Liquefied Natural Gas (LNG) so that it can be shipped abroad.
Hammerfest LNG plant on Melkøya. Photo: Ole Jørgen Bratland, Equinor
The Snøhvit field
The well stream from the Snøhvit field is transported in a 143-kilometre pipeline for processing to liquid natural gas (LNG) at the Melkøya onshore facility near Hammerfest in Northern Norway.
Carbon dioxide (CO2) is separated and returned to the field by pipeline for injection into the aquifer (CCS), while LNG, liquid petroleum gas (LPG) and condensates are shipped to market.
A total of 16 wells have been drilled on the Snøhvit field, 14 producers and two wells for reinjecting carbon dioxide (CO2). The plant on Melkøya captures CO2 from the well stream, before returning it to the field far below the seabed. 750,000 tonnes of CO2 are captured and stored each year, equivalent to the emissions from 400,000 cars.
Map of the Snøhvit field showing Hammerfest in Northern Norway
The Snøhvit Future project
Snøhvit Future will strengthen Norway’s position as a reliable and long-term supplier of gas produced with very low greenhouse gas emissions, securing jobs in Hammerfest and energy supplies to Europe.
The project consists of two developments: Snøhvit Onshore Compression and Snøhvit Electrification, which will cut emissions and extend the life of the Snøhvit field.
Snøhvit was the first development in the Barents Sea, and the first major development on the Norwegian continental shelf with no surface installations. Large quantities of natural gas are brought onshore and cooled down at the most northerly export facility for LNG, Liquefied Natural Gas.
Gas from the Snøhvit and Albatross reservoirs came on stream in 2007, while Askeladd came on stream in December 2022.
The production facilities are located on the seabed, at depths of 250–345 metres. The seabed facilities are designed to be over-trawlable, so that neither they nor fishing equipment will suffer any damage from coming into contact with each other. A total of 20 wells will be drilled here to produce gas from the Snøhvit, Askeladd and Albatross fields.
The pipeline has a capacity of 7.6 billion Sm3 a year. CO2 is separated from the natural gas and returned to the Snøhvit field, where it is injected in a separate formation under the reservoirs. The gas is subsequently exported in custom-built LNG ships.
At the onshore facility at Hammerfest LNG, condensate, water and CO2 are separated from the well stream before the natural gas is cooled down to a liquid form (LNG = liquefied natural gas) and stored in dedicated tanks.
Snøhvit production has now reached the plateau phase. After the field came onstream, several production wells have been drilled in various structures. After the successful completion of the Cold Return project (bringing the LNG plant back online), production resumed in June 2022.
Location: Blocks 7120 og 7121 in the Barents Sea Production date: 21 August 2007 Production: Gas
Hammerfest LNG commenced production in 2007. About 500 people work at the plant, including apprentices and contractors. Including spin-off effects, Hammerfest LNG employs a total of about 900 people in North Norway.
85 per cent of the revenues from Melkøya go to the Treasury through taxes and direct ownership (Petoro). In addition, there is the government's dividend on Equinor shares.
Every year, Hammerfest LNG contributes NOK 170 million in property tax to Hammerfest municipality. Snøhvit Future extends these revenues for the municipality beyond 2030 – in addition to increasing them by about 30 percent.
Every day, Hammerfest LNG contributes to 6.5 million households having light and heat in their homes, and production from Melkøya corresponds to 5 per cent of Norway's total exports. LNG ships call at Melkøya every 5 days.
During normal production, Hammerfest LNG delivers 6.5 billion cubic metres of LNG per year. In addition, there areLPG and condensate products.
Hammerfest LNG is Norway's and Europe's first production facility for cooled liquefied natural gas (LNG). The three fields Snøhvit, Askeladd and Albatross are located approx. 143 km from Hammerfest and have been developed with a subsea solution where no installations are visible on the sea surface.
Snøhvit was the first development in the southern Barents Sea and was the first major development on the Norwegian continental shelf without surface installations.
The well stream is transported in a 143-kilometre pipeline for processing into liquefied natural gas (LNG) at the onshore facility on Melkøya near Hammerfest. Carbon dioxide (CO2) is separated and returned to the field by pipeline for injection into the aquifer (CCS), while LNG, liquefied petroleum gas (LPG) and condensates are shipped to the market.
Gas from the Snøhvit and Albatross reservoirs came on stream in 2007, while Askeladd came on stream in December 2022, extending plateau production. The Askeladd West project, which is currently under development, will start in 2025 and will extend the plateau until Snøhvit Future starts up.
