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Volume 12
Issue 9
10.3390/coatings12091257
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Article

Identification and Analysis of Corrosion Mechanisms for Ground Pipelines with Hanging Rings

by
Yuntao Xi
1,2,
Yidi Li
1,
Yang Yao
3,4,
Qingming Gan
3,4,
Yixu Wang
5,
Lei Wang
1,6,7,8,*,
Lei Wen
7,
Shilei Li
6,
Daoyong Yang
2,*,
Jiangtao Ji
9 and
Shubin Lei
1
1
School of Material Science and Engineering, Xi’an Shiyou University, Xi’an 710065, China
2
Petroleum Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, SK S4S 0A2, Canada
3
Oil&Gas Technology Research Institute of Changqing Oilfield Company, PetroChina, Xi’an 710018, China
4
National Engineering Laboratory for Exploration & Development of Low Permeability Oil and Gas Fields, Xi’an 710018, China
5
Metropolitan College, Boston University, Boston, MA 02215, USA
6
State Key Lab of Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China
7
Nation Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China
8
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
9
China Railway First Survey and Design Institute Group Co., Ltd., Xi’an 710043, China
*
Authors to whom correspondence should be addressed.
Coatings 2022, 12(9), 1257; https://doi.org/10.3390/coatings12091257
Submission received: 14 July 2022 / Revised: 12 August 2022 / Accepted: 23 August 2022 / Published: 28 August 2022
(This article belongs to the Special Issue Deposition, Characterization and Application of Anti-corrosion and Lubricating Coatings)
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Abstract

Recently, corrosion perforation has been frequently seen in surface pipelines in the oil and gas industry, resulting in operational and environmental challenges. Due to the complex characteristics and mechanisms of such corrosion, a new and pragmatic method has been designed to identify and evaluate the corrosion phenomenon via a hanging ring installed in a surface pipeline. In addition to respectively analyzing the ions of water samples with chemical titration, ion chromatography, and mass spectrometry, the micro-surface morphology of the corroded hanging rings was observed and evaluated by using a scanning electron microscope (SEM) equipped with energy dispersive spectroscopy (EDS), and the surface composition of the corroded hanging rings was analyzed by using X-ray diffraction (XRD). The water ions of each selected position were found to mainly contain Ca2+, Ba2+, SO42−, and HCO3−, while the barium scale and calcium carbonate scale were formed in situ. In addition to the common corrosion induced by CO2, corrosion induced by both CO2 and H2S leads to extremely serious corrosion and scaling in surface pipelines. In addition, the injection dose of corrosion inhibitor was also evaluated.
Keywords: surface pipeline; corrosion perforation; hanging ring; corrosion scaling surface pipeline; corrosion perforation; hanging ring; corrosion scaling

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MDPI and ACS Style

Xi, Y.; Li, Y.; Yao, Y.; Gan, Q.; Wang, Y.; Wang, L.; Wen, L.; Li, S.; Yang, D.; Ji, J.; et al. Identification and Analysis of Corrosion Mechanisms for Ground Pipelines with Hanging Rings. Coatings 2022, 12, 1257. https://doi.org/10.3390/coatings12091257

AMA Style

Xi Y, Li Y, Yao Y, Gan Q, Wang Y, Wang L, Wen L, Li S, Yang D, Ji J, et al. Identification and Analysis of Corrosion Mechanisms for Ground Pipelines with Hanging Rings. Coatings. 2022; 12(9):1257. https://doi.org/10.3390/coatings12091257

Chicago/Turabian Style

Xi, Yuntao, Yidi Li, Yang Yao, Qingming Gan, Yixu Wang, Lei Wang, Lei Wen, Shilei Li, Daoyong Yang, Jiangtao Ji, and et al. 2022. "Identification and Analysis of Corrosion Mechanisms for Ground Pipelines with Hanging Rings" Coatings 12, no. 9: 1257. https://doi.org/10.3390/coatings12091257

APA Style

Xi, Y., Li, Y., Yao, Y., Gan, Q., Wang, Y., Wang, L., Wen, L., Li, S., Yang, D., Ji, J., & Lei, S. (2022). Identification and Analysis of Corrosion Mechanisms for Ground Pipelines with Hanging Rings. Coatings, 12(9), 1257. https://doi.org/10.3390/coatings12091257

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