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TC4钛合金在有机盐完井液中的腐蚀性能

赵国仙 高飞

赵国仙, 高飞. TC4钛合金在有机盐完井液中的腐蚀性能[J]. 钻井液与完井液, 2020, 37(2): 264-268. doi: 10.3969/j.issn.1001-5620.2020.02.022
引用本文: 赵国仙, 高飞. TC4钛合金在有机盐完井液中的腐蚀性能[J]. 钻井液与完井液, 2020, 37(2): 264-268. doi: 10.3969/j.issn.1001-5620.2020.02.022
ZHAO Guoxian, GAO Fei. Anti-Corrosion Behavior of TC4 Alloy In Organic Salt Completion Fluid[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(2): 264-268. doi: 10.3969/j.issn.1001-5620.2020.02.022
Citation: ZHAO Guoxian, GAO Fei. Anti-Corrosion Behavior of TC4 Alloy In Organic Salt Completion Fluid[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(2): 264-268. doi: 10.3969/j.issn.1001-5620.2020.02.022

TC4钛合金在有机盐完井液中的腐蚀性能

doi: 10.3969/j.issn.1001-5620.2020.02.022
基金项目: 

西安石油大学研究生创新与实践能力培养计划资助项目(YCS18212047)

详细信息
    作者简介:

    赵国仙,教授,1968生,2005年毕业于西安交通大学,现在从事石油管的腐蚀与防护工作。电话13891999332,E-mail:419670963@qq.com

    通讯作者:

    高飞,电话15509233195,E-mail:1149793464@qq.com

  • 中图分类号: TE988.2

Anti-Corrosion Behavior of TC4 Alloy In Organic Salt Completion Fluid

  • 摘要: 针对钛合金在苛刻油田环境中的适用性,通过模拟腐蚀失重实验以及电化学测试分析,研究了TC4钛合金在高温高压完井液中的抗腐蚀及电化学腐蚀行为。结果表明,在总压为10 MPa,密度为1.4 g/cm3的甲酸钾完井液环境中经过360 h腐蚀,TC4钛合金有较高的腐蚀速率,其抗腐蚀性能较差,在210℃时,腐蚀速率达0.1361 mm/a。TC4钛合金阳极极化曲线均有钝化区,随温度升高,自腐蚀电流密度增大,腐蚀倾向性增大。电化学阻抗谱有明显的容弧特征,电荷转移电阻随温度升高减小很快,钝化膜的保护性减弱,表明TC4钛合金在高温高压甲酸钾完井液中的抗腐蚀性逐渐降低。

     

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出版历程
  • 收稿日期:  2020-02-25
  • 刊出日期:  2020-04-28

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