Vol. 7 № 2, 2017 p 102-108

Pages

Article name, authors, abstract and keyword

102-108

Recent innovations in pipeline seam weld integrity assessment

Ted L Anderson a

a Team Industrial Services, Denver, Colorado, USA

https://doi.org/10.28999/2541-9595-2017-7-2-102-108

Abstract: The integrity of pipelines with longitudinal seam welds has received renewed interest by operators and regulators, due primarily to a number of high-profile incidents. Most operators and pipeline integrity consultants have assessed seam weld flaws with methodologies that have changed very little over the past 30 years. However, the status quo is no longer viable, given the heightened public scrutiny and regulatory pressure.
This paper presents a number of recent innovations in assessment technology that can lead to improved reliability and a more optimal use of finite integrity budgets.

Keywords: integrity of pipelines, longitudinal seam welds, conservative flaw assessment model, advanced assessment, ln-sec model, finite element parametric study, pressure cycle fatigue analysis

References:
[1] Anderson TL. Advanced Assessment of Pipeline Integrity using ILI Data. 2010 Pipeline Pigging and Integrity Conference, Houston, February 2010.
[2] Kiefner JF, Maxey WA, Eiber RJ, and Duffy AR. Failure Stress Levels of Flaws in Pressurized Cylinders. ASTM STP 536, American Society for Testing and Materials, 1973.
[3] Kiefner JF. Modified Equation Helps Integrity Management. Oil and Gas Journal, 2001, 10; 64–66.
[4] API 579-1/ASME FFS-1. Fitness-for-Service, jointly published by the American Petroleum Institute and the American Society for Mechanical Engineers, June 2007.
[5] Chell GG. Criteria for Evaluating Failure Susceptibility due to Axial Cracks in Pressurized Line Pipe. PRCI Project MAT-8 Final Report, December 2008.

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