| 油套管N80钢的乙酸腐蚀行为 |
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| 引用本文： | 朱世东,魏建锋,尹志福,白真权,蔡锐,韩燕.油套管N80钢的乙酸腐蚀行为[J].腐蚀科学与防护技术,2010,22(2):94-97. |
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| 作者姓名： | 朱世东 魏建锋 尹志福 白真权 蔡锐 韩燕 |
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| 作者单位： | 1西安交通大学 材料科学与工程学院;西安 710049； 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;西安 710065 |
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| 摘 要： | 模拟油气田环境,采用高温高压釜对油套管N80钢进行失重腐蚀试验.结果表明:N80钢的腐蚀速率随着乙酸浓度的增加呈升高趋势,但在乙酸浓度为3000μl/L时反而比在1000μl/L时低,并且其在含乙酸的腐蚀介质中的腐蚀速率远高于在未含乙酸的腐蚀介质中的腐蚀速率.利用扫描电子显微镜(SEM)、能散X射线谱仪(EDS)和X射线衍射技术(XRD)研究了在不同乙酸浓度条件下油管钢N80腐蚀的特征并讨论了其腐蚀机理.
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| 关 键 词： | N80 乙酸 腐蚀行为 |
| 收稿时间： | 2008-07-22 |
| 修稿时间： | 2008-10-27 |
Acetic Acid Corrosion Behavior of N80 Steel |
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| Affiliation: | 1School of Material Science and Engineering;Xi′an Jiaotong Uinversity;Xi′an 710049; 2The Key Laboratory for Mechanical and Environmental Behavior of Tubular Goods;CNPC;Xi′an 710065 |
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| Abstract: | The corrosion perfromance of annulus N80 steel was examined in a simulated oil and gas field environment with acetic acid in an autoclave,and the corrosion rate was measured by weight loss method.The results showed that the corrosion rate of N80 increased with the increasing of acetic acid concentration,but the corrosion rate of N80 steel was lower with 3000 μl/L than that with 1000 μl/L of acetic acid concentration,and the corrosion rate of N80 steel was much higher in the corrosion mediun with acetic acid than that without acetic acid.Scanning Electron Microscope(SEM),X Ray Diffractometers(XRD)and Energy Dispersive x-ray Spectra(EDS)were used to characterize the corrosion features of annulus N80 steel with different concentation of acetic acid.The corrosion mechanism in the presence of acetic acid in oil was also discussed. |
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| Keywords: | N80 acetic acid corrosion behavior |
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