油管钢在CO2/H2S环境中的腐蚀产物及腐蚀行为
Corrosion Products and Corrosion Behavior of Tubing Steel in CO2/H2S Environment
摘 要
对CO2/H2S环境中常规油管钢的腐蚀产物的已有研究成果进行了归纳分析, 结果表明, 在100 ℃附近, CO2/H2S共存环境中, 油管钢表面形成的FeS膜的保护性优于FeCO3, 对金属腐蚀有抑制作用。总结出了油管钢的两类分压比规律: 第一类分压比, 体系中的CO2分压保持不变, 逐渐增加H2S的分压, 腐蚀速率会出现极值; 第二类分压比, 体系中的H2S分压保持恒定, 腐蚀速率会随着CO2分压的升高而增加。这对于进一步完善CO2/H2S腐蚀理论以及油气田合理选择油套管材料均有一定指导意义。
油管钢
腐蚀产物
分压比
CO2/H2S corrosion
tubing steel
corrosion product
partial pressure ratio
Abstract
The corrosion products of tubing steels in CO2/H2S environmental was analyzed. It was found that at about 100 ℃, the formed FeS film was more protective than FeCO3. The corrosion behavior was studied at different partial pressure ratios. When CO2 partial pressure was stable, increasing the H2S partial pressure would result in a maximum of the corrosion rate. When the H2S partial pressure was stable, the corrosion rate increased with the increase of CO2 partial pressure. The result is helpful to complete the theory of CO2/H2S corrosion and selection of tubing steels.
中图分类号 TG172.3
所属栏目 试验研究
基金项目
收稿日期 2010/5/12
修改稿日期 2010/6/12
网络出版日期
作者单位点击查看
备注邓金根, 教授, 长江学者,
引用该论文: YAN Wei,DENG Jin-gen,DONG Xing-liang,ZHANG Chun-yang,LI Li-hong,LI Xiao-rong. Corrosion Products and Corrosion Behavior of Tubing Steel in CO2/H2S Environment[J]. Corrosion & Protection, 2011, 32(3): 192
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参考文献
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【2】李萍. 90 ℃时油管钢 P110的CO2/H2S腐蚀行为[J]. 全面腐蚀控制, 2006, 20(2):18-23.
【3】白真权, 李鹤林, 刘道新, 等. 模拟油田H2S/CO2环境中N80钢的腐蚀及影响因素研究[J]. 材料保护, 2003, 36(4):32-34.
【4】吕祥鸿, 赵国仙, 张建兵, 等. 低Cr钢在H2S/CO2环境中的腐蚀行为研究[J]. 材料工程, 2009(10):21-25.
【5】Kvarekval J, Nyborg R, Choi H, et al. Formation of multilayer iron sulfide films during high temperature CO2/H2S corrosion of carbon steel[C]//Corrosion/2003, Paper No.03339.
【6】Morse J W, Millero F J, Cornwell J C, et al. The chemistry of the hydrogen sulfide and iron sulfide systems in natural waters[J]. Earth-Science Reviews, 1987, 24(1):1-42.
【7】张清, 李全安, 文九巴, 等. H2S分压对油管钢CO2/H2S腐蚀的影响[J]. 腐蚀科学与防护技术, 2004, 16(6):395-397.
【8】朱世东, 刘会, 白真权, 等. 模拟油田CO2/H2S环境中P110钢的动态腐蚀行为[J]. 石油与天然气化工, 2009, 38(1):65-68.
【9】Yin Z F, Zhao W Z, Bai Z Q, et al. Corrosion behavior of SM 80SS tube steel in stimulant solution containing H2S and CO2[J]. Electrochimica Acta, 2008, 53(10):3690-3700.
【10】周卫军, 郭瑞, 张勇, 等. CO2分压对SM80SS套管钢在CO2/H2S共存环境中的高温高压腐蚀行为影响[J]. 腐蚀研究, 2009, 23(8):20-23.
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