2004 International Pipeline Conference, Volumes 1, 2, and 3 2004
DOI: 10.1115/ipc2004-0255
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Northern Exposure: Monitoring and Testing a Subarctic Liquids Pipeline

Abstract: The subarctic location of Enbridge’s Norman Wells pipeline provides unique conditions affecting both construction and operations. These include the huge variations in annual air temperature, permanently frozen ground (permafrost), hundreds of river crossings and potential slope instability. The regulatory authorities recognized this environmental sensitivity and stringent conditions for construction and operation were applied. In this difficult environment, loss of integrity must be detected rapidly and at low… Show more

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