Aging Canadian product line inspected internally ultrasonically

Click here to enlarge imageExcavation crews remove coating from pipe before performing corrosion assessment (Fig. 1).Intensive internal inspection and repair programs undertaken in the last 2 years by Enbridge Pipelines Inc., Edmonton (formerly Interprovincial Pipe Line Inc.), have significantly improved the integrity of an aging pipeline exhibiting some unique corrosion problems.Use of ultrasonic internal inspection technology proved reliable and effective for identifying narrow axial external corrosion (NAEC) and helped Enbridge complete a large amount of remedial work on the pipeline in a relatively short time and successfully complete a hydrotest without failure.Enbridge systemThe i...

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