This helps maintain jobs, value creation and high gas deliveries to Europe from Troll A and the Kollsnes processing plant, which marks its 30th anniversary this year.
The project accelerates production of 55 billion standard cubic metres of gas from the Troll West reservoir. This corresponds to nearly two years of France’s gas demand.
«Troll is the backbone of Norwegian gas exports to Europe. This project accelerates production from the reservoir, helping maintain today’s high level of gas exports from Troll and Kollsnes for as long as possible. With both Troll A and the Kollsnes gas plant powered by electricity from shore, the gas is produced with very low emissions», says Lill Harriet Brusdal, vice president for Troll and Kvitebjorn.
The Trollpartnership consists of Petoro, Equinor, Shell, TotalEnergies and ConocoPhillips.
Troll Phase 3 stage 2 builds on the subsea facilities from the Troll Phase 3 project, which came on stream in 2021, reusing design and standardised solutions. This reduces execution time and costs and points the way for future subsea developments. Troll Phase 3 stage 2 comes on stream just over two years after the partnership’s investment decision.
The Troll phase 3 step 2-project was originally scheduled to start up towards the end of the year, and the cost estimate was NOK 12.3 billion.
The eight-well drilling campaign was completed in five and a half months by the Deepsea Aberdeen rig from Odfjell, with services from SLB and Baker Hughes. Templates and manifolds were built by Aker Solutions in Egersund for main supplier OneSubsea and installed on the field by Ocean Installer.
About Troll
- Troll is the cornerstone of Norwegian gas production and contains around 40% of the gas reserves on the Norwegian continental shelf;
- gas from Troll alone meets around 10% of Europe’s demand, and the annual energy production from Troll corresponds to three times Norway’s annual hydropower production;
- partnership:
- Petoro AS 55.93%,
- Equinor Energy AS (operator) 30.55%,
- A/S Norske Shell 8.19%,
- TotalEnergies EP Norge AS 3.69%,
- ConocoPhillips Skandinavia AS 1.64%.
- Phase 1 is the gas in Troll East, which resulted in Troll A, the Kollsnes gas plant and associated infrastructure.
- Phase 2 is the oil in Troll West, which resulted in the Troll B and C platforms and corresponding infrastructure. The oil is sent to the oil terminal at Mongstad.
- Phase 3 produces the gas cap above the oil column in Troll West, while oil production continues. The gas flows to Troll A and onward through existing infrastructure.
