Equinor and its partners Petoro, Shell, TotalEnergies, and ConocoPhillips are investing US$410 million in a new subsea development that will increase gas production from the Troll field in the North Sea.
The TWIN project, short for Troll West Increased gas recovery North, is expected to contribute around 388 bcf (11 x 109 m3) of gas. It is the third step of Troll phase 3, which produces gas from the Troll West reservoir.
The second step will come on stream during 2026 and will ensure continued high production from Troll A and Kollsnes towards 2030. Both the platform and the onshore plant are powered by electricity from shore, meaning the gas will be produced with very low emissions.
The project consists of two wells in a template and a pipeline connected to existing subsea facilities. The umbilical and mono-ethylene glycol line will be extended to the new development.
“We have an ambition to start production as early as 2028. By simplifying, increasing standardization and reusing existing infrastructure and equipment, we are reducing costs and enabling faster production, in line with our new ways of working,” said Gunnar Nakken, senior vice president for projects and subsea Norway in Equinor. ”The project helps sustain jobs, value creation, and secure gas exports to Europe from Troll A and Kollsnes.”
This is one of many subsea projects planned on the Norwegian continental shelf in the coming years. Both the industry and the authorities are focused on simplifying processes, reducing costs, and bringing new volumes on stream more quickly.
“Our fields are ageing, new discoveries are smaller and costs are increasing. If we are to continue delivering, we need to do something radically different. Our ambition is to halve costs and execution time for our subsea projects and develop six to eight such projects per year towards 2035,” said Nakken.
