[1]张 清,李全安,文九巴,等.N80油管钢CO2/H2S腐蚀的阳极过程EIS分析[J].焊管,2007,30(4):25-28.[doi:1001-3938(2007)04-0025-03]
 ZHANG Qing,LI Quan-an,WEN Jiu-ba,et al.EIS Analysis on the Anode Process of CO2/H2S Corrosion of Tubular Steel N80[J].,2007,30(4):25-28.[doi:1001-3938(2007)04-0025-03]
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N80油管钢CO2/H2S腐蚀的阳极过程EIS分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
30
期数:
2007年第4期
页码:
25-28
栏目:
试验与研究
出版日期:
2007-07-28

文章信息/Info

Title:
EIS Analysis on the Anode Process of CO2/H2S Corrosion of Tubular Steel N80
文章编号:
1001-3938(2007)04-0025-03
作者:
张 清1李全安1文九巴1白真权2
(1.河南科技大学 材料科学与工程学院;2.中国石油天然气集团公司石油管力学和环境行为重点实验室)
Author(s):
ZHANG QingLI Quan-anWEN Jiu-baBAI Zhen-quan
关键词:
N80钢CO2/H2S腐蚀阳极过程交流阻抗谱(EIS)
Keywords:
steel N80CO2/H2S corrosioncathode processEIS
分类号:
TE998.2
DOI:
1001-3938(2007)04-0025-03
文献标志码:
A
摘要:
为了找出油管钢CO2/H2S腐蚀的阳极反应与腐蚀时间的关系,采用高温高压釜装置,辅以交流阻抗谱(EIS)测试技术,在100℃,CO2分压241kPa(180psi)和H2S分压13.8kPa(2psi)的条件下,对N80油管钢在模拟油田采出液中CO2/H2S腐蚀的阳极过程进行了研究。结果表明,阳极反应的交流阻抗谱随着腐蚀时间发生变化:2h后为两个容抗弧,反应受活化控制;12h后高频区出现双电层容抗弧,低频区不仅出现Warburg阻抗,还有一个容抗弧叠加,说明阳极过程不只是受离子扩散穿过腐蚀产物膜控制,还有一个附加的电极过程;36h和72h后只出现Warburg阻抗,此时反应受离子扩散穿过腐蚀产物膜控制。
Abstract:
In order to find out the relation between corrosion time and the anode reaction of CO2/H2S corrosion of tubular steels,a autoclave,together with EIS,is used to study the anode process of CO2/H2S corrosion of tubular steel N80 in simulated oil well produced water under 180psi CO2 and 2psi H2S at 100℃.The results show that the EIS of anode reaction change with corrosion time.After 2h,the EIS is double capacitive impedance and the corrosion is controlled by activation.After 12h,the EIS is double layer capacitive impedance in high frequency area and Warburg impedance and another capacitive impedance in low frequency area,and the process is decided by ion diffusion through corrosion scale and another reaction.After 36h and 72h,the EIS is only Warburg impedance and the reaction is caused by ion diffusion through corrosion scale.

参考文献/References:

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备注/Memo

备注/Memo:
张清(1974-),男,河南科技大学硕士生,研究方向为油田腐蚀与防护。
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