An investigation was made into the premature failure of a gas-header at the Rocky Mountain Oilfield Testing Center (RMOTC) natural gas production facility. A wide variety of possible failure mechanisms were considered: design of the header, deviation from normal pipe alloy composition, physical orientation of the header, gas composition and flow rate, type of corrosion, protectiveness of the interior oxide film, time of wetness, and erosion-corrosion. The failed header was examined using metallographic techniques, scanning electron microscopy, and microanalysis. A comparison of the failure site and an analogous site that had not failed, but exhibited similar metal thinning was also ...
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Pittsburgh, Pennsylvania
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An investigation was made into the premature failure of a gas-header at the Rocky Mountain Oilfield Testing Center (RMOTC) natural gas production facility. A wide variety of possible failure mechanisms were considered: design of the header, deviation from normal pipe alloy composition, physical orientation of the header, gas composition and flow rate, type of corrosion, protectiveness of the interior oxide film, time of wetness, and erosion-corrosion. The failed header was examined using metallographic techniques, scanning electron microscopy, and microanalysis. A comparison of the failure site and an analogous site that had not failed, but exhibited similar metal thinning was also performed. From these studies it was concluded that failure resulted from erosion-corrosion, and that design elements of the header and orientation with respect to gas flow contributed to the mass loss at the failure point.
Notes
Publisher -- as Paper 07147 on CD of Corrosion/2007 Proceedings, NACE International, Houston, TX, 14 pp.
Corrosion 2007, Nashville, TN, March 11-15, 2007; Related Information: Attached file contains paper as submitted to publisher and pdf of slide presentation.
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Matthes, S. A.; Covino, B. S., Jr.; Bullard, S. J.; Ziomek-Moroz, M. & Holcomb, G. R.Determining the Cause of a Header Failure in a Natural Gas Production Facility,
article,
March 1, 2007;
Houston, Texas.
(digital.library.unt.edu/ark:/67531/metadc883388/:
accessed July 22, 2018),
University of North Texas Libraries, Digital Library, digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.
