Test Conditions for Pipeline Materials Selection with High Pressure Sour Gas
Joint Authors
Gabetta, G.
Correra, S.
Sgorlon, S.
Bestetti, M.
Source
International Journal of Corrosion
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-29
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Acid gases, such as CO2, H2S, and/or sulfur in oil industry’s production fluids, can be responsible for both general and localized corrosion, acting with different mechanisms, which depend on chemical and physical properties of the produced fluids.
Materials selection for handling such fluids is performed by combining experience with suggestions from standards and regulations.
A good deal of knowledge is available to predict corrosion rates for CO2-containing hydrocarbons, but the effect of high H2S pressure is less understood, mainly due to the difficulty of performing laboratory tests in such challenging conditions.
For instance, the so-called NACE solution to assess SSC (Sulfide Stress Cracking) susceptibility of steels is a water-based solution simulating production fluids in equilibrium with one bar bubbling H2S gas.
This solution does not represent environments where high gas pressure is present.
Moreover, it does not take into account the corrosive properties of sulfur and its compounds that may deposit in such conditions.
Besides, properties of high pressure gases are intermediate between those of a gas and those of a liquid: high pressure gases have superior wetting properties and better penetration in small pores, with respect to liquids.
These features could enhance and accelerate damage, and nowadays such conditions are likely to be present in many production fields.
This paper is aimed to point out a few challenges in dealing with high pressure gases and to suggest that, for materials selection in sour service, a better correspondence of test conditions with the actual field conditions shall be pursued.
American Psychological Association (APA)
Gabetta, G.& Correra, S.& Sgorlon, S.& Bestetti, M.. 2018. Test Conditions for Pipeline Materials Selection with High Pressure Sour Gas. International Journal of Corrosion،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1169771
Modern Language Association (MLA)
Gabetta, G.…[et al.]. Test Conditions for Pipeline Materials Selection with High Pressure Sour Gas. International Journal of Corrosion No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1169771
American Medical Association (AMA)
Gabetta, G.& Correra, S.& Sgorlon, S.& Bestetti, M.. Test Conditions for Pipeline Materials Selection with High Pressure Sour Gas. International Journal of Corrosion. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1169771
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1169771