The CO 2 corrosion behaviour of 25Mn2 and 2Cr steels under certain downhole condition
An economical 2Cr steel tubing was prepared for application in a certain downhole corrosion condition, and the CO 2 corrosion behaviour was investigated by employing the 25Mn2 steel for comparative study. The corrosion films of the two steels under different corrosion conditions were analysed by opt...
Published in: | Corrosion Engineering, Science and Technology: The International Journal of Corrosion Processes and Corrosion Control |
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crsagepubl:10.1177/1478422x231212960 2024-04-07T07:51:47+00:00 The CO 2 corrosion behaviour of 25Mn2 and 2Cr steels under certain downhole condition Yuling, Zhang Qingchao, Tian Xuyan, Deng Xu, Xiao Guofu, Wang 2024 http://dx.doi.org/10.1177/1478422x231212960 http://journals.sagepub.com/doi/pdf/10.1177/1478422X231212960 http://journals.sagepub.com/doi/full-xml/10.1177/1478422X231212960 en eng SAGE Publications https://journals.sagepub.com/page/policies/text-and-data-mining-license Corrosion Engineering, Science and Technology: The International Journal of Corrosion Processes and Corrosion Control volume 59, issue 1, page 3-12 ISSN 1478-422X 1743-2782 General Materials Science General Chemical Engineering General Chemistry journal-article 2024 crsagepubl https://doi.org/10.1177/1478422x231212960 2024-03-08T03:21:11Z An economical 2Cr steel tubing was prepared for application in a certain downhole corrosion condition, and the CO 2 corrosion behaviour was investigated by employing the 25Mn2 steel for comparative study. The corrosion films of the two steels under different corrosion conditions were analysed by optical microscope, scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and X-ray diffraction (XRD). It is revealed that the corrosion rate of 25Mn2 steel at static solution is about 2.5 times higher than that at the dynamic solution with the flow velocity of 1 m/s, while the corrosion rate of 2Cr steel keeps almost the same. It is found that both steels show two layers of corrosion film at static corrosion, and the corrosion film is mainly composed of FeCO 3 , α-FeOOH and dotted Fe 3 C in the inner layer. It is inferred that carbon pickup phenomenon observed in the corrosion film is attributed to the formation of FeCO 3 , as well as may also be due to phenomenologically the reaction of Fe 3 C with carbonic acid. Article in Journal/Newspaper Carbonic acid SAGE Publications Corrosion Engineering, Science and Technology: The International Journal of Corrosion Processes and Corrosion Control 59 1 3 12 |
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crsagepubl |
language |
English |
topic |
General Materials Science General Chemical Engineering General Chemistry |
spellingShingle |
General Materials Science General Chemical Engineering General Chemistry Yuling, Zhang Qingchao, Tian Xuyan, Deng Xu, Xiao Guofu, Wang The CO 2 corrosion behaviour of 25Mn2 and 2Cr steels under certain downhole condition |
topic_facet |
General Materials Science General Chemical Engineering General Chemistry |
description |
An economical 2Cr steel tubing was prepared for application in a certain downhole corrosion condition, and the CO 2 corrosion behaviour was investigated by employing the 25Mn2 steel for comparative study. The corrosion films of the two steels under different corrosion conditions were analysed by optical microscope, scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and X-ray diffraction (XRD). It is revealed that the corrosion rate of 25Mn2 steel at static solution is about 2.5 times higher than that at the dynamic solution with the flow velocity of 1 m/s, while the corrosion rate of 2Cr steel keeps almost the same. It is found that both steels show two layers of corrosion film at static corrosion, and the corrosion film is mainly composed of FeCO 3 , α-FeOOH and dotted Fe 3 C in the inner layer. It is inferred that carbon pickup phenomenon observed in the corrosion film is attributed to the formation of FeCO 3 , as well as may also be due to phenomenologically the reaction of Fe 3 C with carbonic acid. |
format |
Article in Journal/Newspaper |
author |
Yuling, Zhang Qingchao, Tian Xuyan, Deng Xu, Xiao Guofu, Wang |
author_facet |
Yuling, Zhang Qingchao, Tian Xuyan, Deng Xu, Xiao Guofu, Wang |
author_sort |
Yuling, Zhang |
title |
The CO 2 corrosion behaviour of 25Mn2 and 2Cr steels under certain downhole condition |
title_short |
The CO 2 corrosion behaviour of 25Mn2 and 2Cr steels under certain downhole condition |
title_full |
The CO 2 corrosion behaviour of 25Mn2 and 2Cr steels under certain downhole condition |
title_fullStr |
The CO 2 corrosion behaviour of 25Mn2 and 2Cr steels under certain downhole condition |
title_full_unstemmed |
The CO 2 corrosion behaviour of 25Mn2 and 2Cr steels under certain downhole condition |
title_sort |
co 2 corrosion behaviour of 25mn2 and 2cr steels under certain downhole condition |
publisher |
SAGE Publications |
publishDate |
2024 |
url |
http://dx.doi.org/10.1177/1478422x231212960 http://journals.sagepub.com/doi/pdf/10.1177/1478422X231212960 http://journals.sagepub.com/doi/full-xml/10.1177/1478422X231212960 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Corrosion Engineering, Science and Technology: The International Journal of Corrosion Processes and Corrosion Control volume 59, issue 1, page 3-12 ISSN 1478-422X 1743-2782 |
op_rights |
https://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/1478422x231212960 |
container_title |
Corrosion Engineering, Science and Technology: The International Journal of Corrosion Processes and Corrosion Control |
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59 |
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1 |
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3 |
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12 |
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1795666865655119872 |