The Kollsnes gas processing facilities is located at Kollsnes west of Bergen in Norway. The Kollsnes gas plant was started up in 1996 and is owned by Gassled with Gasco as operator and Statoil ASA as technical service provider. The plant treats gas from the Troll, Visund and Kvitebjørn offshore fields in the North Sea at a rate of up to 130 million standard cubic meters (scm) per day.
The Kollsnes plant separates natural gas liquids (NGL) from the methane-rich gas, and compresses the latter for pumping by large compressors through various pipelines to continental Europe.
The Vest process pipeline carries the NGL phase from the Kollsnes facility to Statoil’s Mongstad refinery for further fractionation into propane, butanes and naphtha. Gas from Kollsnes is transported to continental Europe through four pipeline systems.