| N80抗硫油管钢在含CO2、微量H2S及高浓度Cl-腐蚀介质中的腐蚀行为 |
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| 引用本文： | 周卫军,严密林,王成达. N80抗硫油管钢在含CO2、微量H2S及高浓度Cl-腐蚀介质中的腐蚀行为[J]. 腐蚀科学与防护技术, 2007, 19(3): 192-195 |
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| 作者姓名： | 周卫军 严密林 王成达 |
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| 作者单位： | 西安石油大学石油工程学院,西安,710065;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,西安,710065;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,西安,710065;长庆石油勘探局,工程技术研究院,西安,710021 |
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| 摘 要： | 用失重法、扫描电镜（SEM）、X射线能谱(EDS)及X射线衍射能谱(XRD)对N80抗硫油管钢在CO2、微量H2S及高浓度Cl-条件下的腐蚀行为进行了研究.结果表明，在本实验条件下，腐蚀反应以H2S腐蚀为主；在膜的形成过程中FeS腐蚀产物膜优先形成，并进一步阻碍具有良好保护性的FeCO3腐蚀产物膜的形成；腐蚀产物膜疏松、平均腐蚀速率较大，且有轻度局部腐蚀发生；溶液中高浓度的Cl-及材料中高含量的Cr元素会使N80抗硫钢局部腐蚀倾向加大.
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| 关 键 词： | N80抗硫油管钢 CO2 H2S Cl- 腐蚀产物膜 |
| 文章编号： | 1002-6495（2007）03-0192-04 |
| 收稿时间： | 2006-06-30 |
| 修稿时间： | 2006-06-302006-09-10 |
CORROSION BEHAVIOR OF N80 TUBING STEEL IN MEDIUM CONTAINING CARBON DIOXIDE,HYDROGEN SULFIDE AND HIGH CHLORINE IONS |
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| ZHOU Wei-jun,YAN Mi-lin,WANG Cheng-da. CORROSION BEHAVIOR OF N80 TUBING STEEL IN MEDIUM CONTAINING CARBON DIOXIDE,HYDROGEN SULFIDE AND HIGH CHLORINE IONS[J]. Corrosion Science and Protection Technology, 2007, 19(3): 192-195 |
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| Authors: | ZHOU Wei-jun YAN Mi-lin WANG Cheng-da |
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| Abstract: | Corrosion behavior of N80 tubing steel is studied in a medium containing carbon dioxide, a little hydrogen sulfide and high chlorine ions. The results show that H2S is the main reaction product. FeS comes into being firstly during the progress of the experiment, then it holds back the forming of FeCO3 which then further strongly suppresses the formation of FeCO3. Corrosion product films are loose, the average corrosion rate is high, and there is slight local corrosion occurred on the surface of N80 tubing steel. High Cl^- concentration of the medium and high Cr content the steel enhanced the tendency of local corrosion. |
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| Keywords: | NSO tubing steel Cl^- H2S CO2 corrosion product |
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