Failure Analysis of API 5L (Grade B) Oil Field Separator Flowline Pipe

Failure Analysis of API 5L (Grade B) Oil Field Separator Flowline Pipe This paper presents the root cause failure analysis of an API 5L (Grade B) pipe that failed while in full well stream service in the oil and gas industry. The operating temperature ranged from 120 to 190 °F and was exposed to hydrogen sulfide (H2S) concentrations of 350–1000 ppm. Visual inspection, hardness test, metallography, Fourier transform infrared spectrophotometry, scanning electron microscopy, and energy-dispersive X-ray spectroscopy were carried out to investigate the pipe failure. This study revealed that an extremely localized pitting corrosion due to chloride attack was the main mode of the failure. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Failure Analysis and Prevention Springer Journals

Failure Analysis of API 5L (Grade B) Oil Field Separator Flowline Pipe

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Publisher
Springer US
Copyright
Copyright © 2018 by ASM International
Subject
Materials Science; Tribology, Corrosion and Coatings; Characterization and Evaluation of Materials; Classical Mechanics; Structural Mechanics; Quality Control, Reliability, Safety and Risk
ISSN
1547-7029
eISSN
1864-1245
D.O.I.
10.1007/s11668-018-0454-0
Publisher site
See Article on Publisher Site

Abstract

This paper presents the root cause failure analysis of an API 5L (Grade B) pipe that failed while in full well stream service in the oil and gas industry. The operating temperature ranged from 120 to 190 °F and was exposed to hydrogen sulfide (H2S) concentrations of 350–1000 ppm. Visual inspection, hardness test, metallography, Fourier transform infrared spectrophotometry, scanning electron microscopy, and energy-dispersive X-ray spectroscopy were carried out to investigate the pipe failure. This study revealed that an extremely localized pitting corrosion due to chloride attack was the main mode of the failure.

Journal

Journal of Failure Analysis and PreventionSpringer Journals

Published: Jun 5, 2018

References

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