Corrosion Fatigue Behavior of Flexible Pipe Tensile Armor Wires in a CO₂ Environment

Abstract:

The new offshore areas being explored in Brazil presents higher concentration of CO₂ compared with most existing offshore fields. The presence of these more aggressive environments has led to the development of new technologies. Due to the construction characteristics of flexible pipes, any increase in CO₂ concentration in the conveyed fluid will, in turn, increase the CO₂ concentration in the pipe annulus, subjecting the metallic armor layers to a more aggressive environment. Evaluation of the CO₂ effects of corrosion fatigue behavior in tensile armor wires is therefore of vital importance. A comprehensive corrosion fatigue experiment for tensile armor wires in environments up to 10 bar of CO₂, has been established and the experimental results have shown a fatigue life reduction in the tensile amour wires due to higher levels of CO₂.

• Periodical: Materials Science Forum (Volume 758)
• Pages: 77-82
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.758.77
• Online since: June 2013
• Authors: Fabio Santos, Fabio Pires, Richard Clements, Judimar Clevelario, Terry Sheldrake, Luís Felipe Guimarães de Souza, Paulo Pedro Kenedi
• Keywords: CO₂, Fatigue, Flexible Pipe

References

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