Operations

Delivering gas from the Laggan and Tormore fields to the UK mainland requires a complex operational infrastructure capable of transporting the produced gas and condensate firstly to the Shetland Gas Plant (SGP) for initial separation and then onwards via a new export pipeline connecting with the existing Frigg UK pipeline and onwards to the St Fergus gas Terminal.

The technical challenges associated with transporting the produced co-mingled multiphase flow from the wells more than 140km to shore – in effect ‘uphill’ from a water depth of 600m to onshore  at the SGP on Shetland – push the boundaries of conventional tie back technology. In fact, Laggan-Tormore will be the longest deep water tie back to the shore anywhere in the world.