Ormen Lange is a mature asset with 19 gas wells at 4 subsea templates. It is found at 1000m water depth in the Norwegian Sea and 120 km offshore. The gas is produced via two 30” gas flowlines to an onshore processing plant at Nyhamna, a plant that has been exporting gas to Easington UK since 2007.

Ormen Lange Phase 3 is a Norske Shell project for increasing total recovery from the field by utilizing a new solution for seabed compression system; to be delivered and installed by 2025. The well stream will be compressed directly at the seabed to ensure sufficient landing pressure for the Nyhamna plant. Two 120 km umbilicals from Nyhamna will be used to power and control the compression system.

The selected solution relies on using a suit of innovative technologies to deliver its production promise. Thus, the project has performed extensive technology testing to de-risk and ensure a robust system delivery, especially of the long step-out power system and the subsea compression system itself.

The presentation will address how close co-operation with suppliers, has allowed the development of a robust and cost-efficient solution, using carefully selected technology elements. All this to open for subsea compression, not only at Ormen Lange, but also at other fields requiring significantly greater step-outs and depths than before.