Subsea 7 Wins Tartan Field Work from Talisman Energy

Subsea 7 is to install pipelines and an umbilical for Talisman Energy (UK) Limited in the Tartan Field, which is located approximately 150 km North East of St Fergus in 140 meters water depth.

The contract is for the development of the Tartan North Terrace “B” discovery as a subsea tie-back to the Tartan-A platform. One 6" rigid production pipeline and a 3” gas lift pipeline of 3.4 km are to be installed and a new umbilical will provide electrical control and signal functions. Tie-in at Tartan-A will be by way of 280m flexible production and gas lift jumpers with the tie-in at the tree via conventional rigid tie-in spools. At each end of the pipelines a tee and valve assembly is to be installed to facilitate future tie-ins. Additionally, assistance will be provided for the commissioning of the Well B tree controls systems with the new lines and umbilical system being pre-commissioned.

Project preparations are ongoing with offshore works due to commence in June 2004 utilizing Subsea 7's pipelay vessel Skandi Navica, a diving support vessel as well as a trenching spread.

Additionally, Subsea 7 has been awarded the contract for replacement pipeline works on Talisman's Beatrice field. This work involves laying and trenching 1.5 km of 6" pipeline.

The combined value for both contracts is in excess of $10M.

Robin Davies, Subsea 7's UK vice president stated, 'Our involvement with Talisman on their field development projects is of great strategic importance to Subsea 7. Following on from our work on the Ross Field last year we look forward to continuing to demonstrate our pipelay capabilities in association with Talisman.'