Technip has been awarded a lump sum contract, worth approximately €21 million, by Lundin Britain Limited for an augmentation pipeline at the Broom field in the UK North Sea. This field, which is located 320 kilometres North-East of Aberdeen, Scotland, is tied back to the Heather Alpha platform. The new augmentation pipeline will extend the existing Broom subsea infrastructure.
The contract covers the design, fabrication and installation of a pipe-in-pipe production flowline(1) which will be trenched and backfilled. The work also includes a subsea structure, spoolpiece(2) tie-ins, repositioning of a flexible riser(3) and rockdumping for upheaval buckling.
Technip’s operating centre in Aberdeen will execute the contract, which is scheduled to be completed in the third quarter of 2010. The pipelines will be welded at Technip’s Spoolbase in Evanton, Scotland. Two vessels from the Technip fleet will be used for the offshore installation campaign: the Orelia diving support vessel and the Apache II pipelay vessel, which is currently being modernised.
(1) Pipe-in-Pipe flowline: steel pipes assembly consisting of a standard production pipe surrounded by a so-called carrier pipe. The gap between the carrier and production pipes is filled with an insulation material.
(2) Spoolpiece: a short section of pipe for the connection of two subsea structures.
(3) Riser: a pipe or assembly of pipes used to transfer produced fluids from the seabed to surface facilities, and transfer injection or control fluids from the surface facilities to the seabed.