Inspectioneering

Elizabeth Allen: About the Author
Senior Engineer, DNV GL


Elizabeth Allen

Elizabeth Allen is a Senior Engineer in the Integrity Solutions section at DNV GL.  Ms. Allen joined DNV GL in 2008 after obtaining her B.S. if Materials Science and Engineering from The Ohio State University.  Ms. Allen experience in the areas related to pipeline integrity management, in-line inspection analysis, seam weld integrity management, and corrosion growth assessment. She has spent time participating and led DNV GL projects related to ILI assessment for several North-American and Canadian onshore pipeline operators. A significant part of her work involves crack and seam weld integrity management such as pressure cycling analysis, fatigue calculations, remaining life assessments, and mitigation selection support. In addition, Ms. Allen is a lead project manager for DNV GL’s statistically active corrosion growth assessment which incorporates ILI results to identify statistical bias in ILI performance, calculates local corrosion growth rates, and calculate deterministic remaining lives to establish re-assessment interval for a pipeline segment.

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Published Articles

November/December 2017 Inspectioneering Journal
By Elizabeth Allen at DNV GL, and Michelle Havlock at DNV GL

This article explains the Statistically Active Corrosion Assessment, which is a tool for determining appropriate and realistic corrosion growth rates which can assist pipeline operators in optimizing the value of in-line inspection data, remediation programs and excavation costs, and determine a re‑inspection interval; all while maintaining safety.


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