Fossil energy – EHTF
Subsea 7 has successfully completed the installation of 16”/10” Electrical Heat Traced Flowline (EHTF) for Aker BP’s Ærfugl Phase 2 project.
The installation of the EHTF system was carried out by Seven Vega, one of Subsea 7’s reel-lay vessels designed to install complex rigid flowlines including pipe-in-pipe (PiP) systems, in water depths up to 3,000m.
The electrical and fibre optical system on Ærfugl ph 2 is hooked up to the topside of the Skarv FPSO and has been successfully commissioned.
The EHTF PiP is an enabling technology, developed together with ITP Interpipe, for improved access to reserves and long tie-backs, where transport of fluid is needed over longer distances.
With the deployment of our EHTF technology we have introduced a step-change in both field economics and production assurance.
The EHTF system will provide active heating for hydrate mitigation with online temperature measurements for the flowline, and it will do so with limited power consumption needed due to a high performance insulated product.
The Ærfugl project has been executed by an integrated team of representatives from Subsea 7 (SURF), Aker Solutions (SPS) and Aker BP as part of the Aker BP Subsea Alliance.