Skandi Navica laying Snohvit carbon dioxide pipelineNews // July 8, 2005
The carbon dioxide injection pipeline is being reeled onto the seabed in five stages. The pipeline runs out to the storage structure, which lies beneath the gas-bearing layers on the Statoil-operated field, from the Melkoya receiving terminal in northern Norway.
Statoil has been separating carbon dioxide from its Sleipner West gas production and storing these volumes in a sub-surface formation in the North Sea since 1996.
Injection and storage of this kind is set to reduce total carbon emissions from the two fields by no less than 1.7 million tonnes per year, including 700,000 from Snohvit.
"Our Snohvit pipeline marks the first offshore injection of carbon dioxide from a land-based plant," says Jorunn Klovning, manager of health, safety and the environment for the Tromso Patch/Snohvit.
Injection of carbon dioxide beneath the seabed will substantially reduce the environmental burden at the Melkoya plant, she points out.
"At the same time, we're winning valuable experience which will be highly significant for continued development of carbon deposition in future projects."
Work on laying the 8in injection pipeline began from land in early June, and just over half of the 151km length has so far been installed.
The pipeline is being reeled onto the seabed from a drum on Skandi Navica, a method which provides a laying speed of 10-20km per day.
The work is scheduled for completion in the course of July.