High-temp., insulated coating aids construction of Alberta bitumen pipeline

Demanding requirements of transporting dry bitumen in the 12-in. OD MacKay River Pipeline in Alberta led to development of an innovative coating system.Material selection considered pipeline-operating requirements, operating temperatures of up to 130° C. (266° F.), environmental conditions, coating application processes in shop and field, reparability, and material costs.An assessment of existing material testing procedures was performed and a number of standard qualification tests were modified to qualify coating materials. This qualification led to selection of a robust, cost-effective coating system.While historical performance information is not yet available, long-term moni...

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