Western LNG has awarded Allseas the contract to install the critical subsea section of the Prince Rupert Gas Transmission (PRGT) pipeline in northwest Canada. The company’s scope comprises approximately 50 kilometres of 36- and 48-inch concrete-weight coated pipeline
The subsea pipeline will be located in the remote waters of north-western British Columbia, near the Alaska border. It forms the final link in a 700-kilometre system transporting Canadian natural gas to the planned Ksi Lisims LNG export facility on the Pacific coast.
The pipeline Allseas will install connects the onshore transmission system to the planned floating LNG facility on Pearse Island. Offshore installation activities are scheduled for 2029.
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Allseas to deploy Solitaire and Sandpiper
Pipelay vessels Solitaire and Sandpiper will execute the work in water depths ranging from the shoreline to approximately 450 metres. The scope includes multiple shore crossings, shore pull-ins, above-water tie-ins, trenching activities, route stabilisation, and pre- and post-lay span rectification. Combined with the project’s remote location, the complex nearshore works make for a technically demanding installation campaign.
Once operational, the PRGT system will provide a new route to market for Canadian natural gas, expanding export opportunities, strengthening long-term energy security, and supporting economic development in British Columbia.
Picture: The Solitaire is one of the two Allseas vessels that will install the pipeline in Canada (photo by Allseas).
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