含硫气井产量递减工况下P110SS油管腐蚀风险研究

doi:10.11896/cldb.25080094

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Abstract The P110SS tubing of a sulfur-containing gas well in the Sichuan Basin is exposed to harsh service conditions including high temperature, high pressure, and the presence of H₂S/CO₂, which put forward higher requirements for corrosion resistance performance of the tubing string. To clarify the corrosion damage behavior of P110SS tubing under continuous multi-environmental conditions throughout its entire service life in a sulfur-containing gas well in the Sichuan Basin, analytical methods such as SEM, EDS, XRD, and 3D optical microscopy were employed to examine the corrosion damage characteristics and quantitatively measure the dimensions of localized corrosion pits. The results indicate that:① The uniform corrosion rate of P110SS under continuous multiple environments ranged from 0.229 6 to 0.402 3 mm/a, with the highest rate observed during the gas testing and initial stable production phase, where all values fell within the extremely severe corrosion range. ② Under high-temperature conditions containing H₂S/CO₂, the corrosion of P110SS is primarily H₂S-dominated. The types of corrosion products on the specimen surface are mainly Mackinawite (FeS) and Pyrrhotite (Fe_1-xS). ③ With the progressive exposure to cumulative corrosive conditions, the localized corrosion of P110SS in the liquid-phase environment is further aggravated. The maximum localized corrosion pit depth reached 92.21 μm, indicating a substantial risk of localized corrosion damage.

Key words： sulfur-containing gas well P110SS tubing corrosion damage

Published: 25 July 2026 Online: 2026-08-12

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TE98

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	ZHANG Zhi
	YANG Chuntao
	WU Xu
	HOU Duo

Cite this article:

ZHANG Zhi,YANG Chuntao,WU Xu, et al. Study on Corrosion Risk of P110SS Tubing in Sulfur-containing Gas Wells Under Production Decline Conditions[J]. Materials Reports, 2026, 40(14): 25080094-9.

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https://www.mater-rep.com/EN/10.11896/cldb.25080094 OR https://www.mater-rep.com/EN/Y2026/V40/I14/25080094

1 Hu Y,Hui D,Peng X,et al. Natural Gas Industry, 2022, 42(12), 23(in Chinese).
胡勇, 惠栋, 彭先, 等. 天然气工业, 2022, 42(12), 23.
2 Hu W R, Li H T, Wang J R, et al. Natural Gas Industry, 2023, 43(11), 146(in Chinese).
胡文瑞, 李海涛, 王俊仁, 等. 天然气工业, 2023, 43(11), 146.
3 Zhang Z, Cai N, Zhao Y J, et al. Natural Gas Industry, 2023, 43(4), 148(in Chinese).
张智, 蔡楠, 赵苑瑾, 等. 天然气工业, 2023, 43(4), 148.
4 Yue H, FanY, Li Y F. Natural Gas Industry, 2022, 42(3), 81(in Chinese).
乐宏, 范宇, 李玉飞. 天然气工业, 2022, 42(3), 81.
5 Tian J, Y J, Wu L J, et al. Information of Surface Engineering, 2024, 24(6), 27(in Chinese).
田疆, 袁键, 伍丽娟, 等. 表面工程与再制造, 2024, 24(6), 27.
6 Quan Q, Zhang Y, Lei M, et al. Materials Protection, 2024, 57(5), 52(in Chinese).
全青, 张源, 雷鸣, 等. 材料保护, 2024, 57(5), 52.
7 Liu J N, Chen C F, Jia X L, et al. Corrosion & Protection, 2023, 44(12), 53(in Chinese).
刘家宁, 陈长风, 贾小兰, 等. 腐蚀与防护, 2023, 44(12), 53.
8 Xiao C, Cui R X, Yang H, et al. Corrosion & Protection, 2023, 44(4), 21(in Chinese).
肖昌, 崔瑞雪, 杨欢, 等. 腐蚀与防护, 2023, 44(4), 21.
9 Hu G Q, Xiao W W, Liang T T, et al. Corrosion & Protection, 2023, 44(4), 59(in Chinese).
胡广强, 肖雯雯, 梁婷婷, 等. 腐蚀与防护, 2023, 44(4), 59.
10 Wan H X, Liu C L, Wang Z, et al. Journal of Chinese Society for Corrosion and Protection, 2023, 43(2), 371(in Chinese).
万红霞, 刘重麟, 王子安, 等. 中国腐蚀与防护学报, 2023, 43(2), 371.
11 He S, Wang B, Xie R J, et al. Equipment Environmental Engineering, 2021, 18(1), 64(in Chinese).
何松, 王贝, 谢仁军, 等. 装备环境工程, 2021, 18(1), 64.
12 Liu L, Li J M, Wang S L, et al. Materials Protection, 2020, 53(7), 30(in Chinese).
刘丽, 李佳蒙, 王书亮, 等. 材料保护, 2020, 53(7), 30.
13 Wang Y F. Fault-Block Oil & Gas Field, 2017, 24(6), 863(in Chinese).
王云帆. 断块油气田, 2017, 24(6), 863.
14 Li D M, Long W, Zou N. Surface Technology, 2016, 45(7), 102(in Chinese).
李冬梅, 龙武, 邹宁. 表面技术, 2016, 45(7), 102.
15 Liu F, Huang J Y, Xia C Y, et al. Corrosion & Protection, 2016, 37(6), 481(in Chinese).
刘飞, 黄金营, 夏成宇, 等. 腐蚀与防护, 2016, 37(6), 481.
16 Wang S T, Zheng X Y, Li M Z, et al. Corrosion Science and Protection Technology, 2013, 25(1), 7(in Chinese).
王树涛, 郑新艳, 李明志, 等. 腐蚀科学与防护技术, 2013, 25(1), 7.