Ramboll Oil & Gas wins pipeline design contractNews // January 18, 2013
Statoil recently awarded Ramboll Oil & Gas a detailed design contract for the 36in Polarled pipeline project (previously named the NSGI project), as well as detailed design for the 30km 18in Kristin Gas Export pipeline connecting to the Polarled pipeline.
The Polarled pipeline project, which crosses the Polar circle, is part of the plans for developing fields further north in the Norwegian Sea. The purpose is to ensure gas transport capacity for gas volumes from planned and future field developments, such as the field developments of Aasta Hansteen, Linnorm and Zidane.
Part of the 36in Polarled pipeline will be installed at a water depth of 1.3km which poses unique challenges during the installation where the pipeline will be free hanging from the installation vessel down to the seabed.
The combination of pipeline size and water depth sets a new world record for deep water large diameter pipeline installation.
The Polarled pipeline will be installed on extremely uneven seabed with very large ice scours in the seabed. This entails numerous long free spans where the pipeline will require rock support or removal of peaks using specialised deep water seabed intervention equipment.