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51315-5485-Current Understanding of Corrosion Mechanisms Due to H?S in Oil and Gas Production Environments

Picture for Current Understanding of Corrosion Mechanisms Due to H?S in Oil and Gas Production Environments
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Product Number: 51315-5485-SG
ISBN: 5485 2015 CP
Author: Stephen Smith
Publication Date: 2015
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In has long been recognized that the mechanism of corrosion in sour systems is more complicated than the simple release of ferrous ions into solution followed by the precipitation of the iron sulfide species appropriate to the environmental conditions. Research conducted to date has identified the most common species of iron sulfides that form under oil and gas production conditions and the corrosive environments that is normally required to produce each. It now appears that in many cases a multi-step process is involved between the formation of the initial iron sulfide tarnish film and the final corrosion product scale. A summary is presented of what is known about this multistage process how it relates to different temperature and H2S partial pressure conditions and what still remains to be determined.
In has long been recognized that the mechanism of corrosion in sour systems is more complicated than the simple release of ferrous ions into solution followed by the precipitation of the iron sulfide species appropriate to the environmental conditions. Research conducted to date has identified the most common species of iron sulfides that form under oil and gas production conditions and the corrosive environments that is normally required to produce each. It now appears that in many cases a multi-step process is involved between the formation of the initial iron sulfide tarnish film and the final corrosion product scale. A summary is presented of what is known about this multistage process how it relates to different temperature and H2S partial pressure conditions and what still remains to be determined.
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