Abstract: In Zhuangxi Oil Production Station crude stabilization tank as an example, studied the influences of the composition of the oil tank bottom water on oil tank bottom corrosion. Further studies on the mechanism of electrochemical corrosion with the method of polarization curves. Focus on the tank bottom water and various ion on the corrosion rate trend from electrochemical corrosion aspects and effect of ion coordonation. The results show that the stability of Cl-, Ca2+ content in Zhuangxi crude oil station is higher than other oil quality ,and the water quality can accelerated the corrosion rate of oil tank in a way.

Key words: Water quality,   ,  Local corrosion,    ,  Method of polarization curve,   , Corrosion rate,    ,  Effect of ion coordonation

摘要： 以桩西联合站原油稳定罐为例,研究了油罐底水组成对油罐罐底腐蚀的影响,并采用极化曲线的方法深入研究了其电化学腐蚀的机理。重点从电化学腐蚀的方面讨论了油罐底水中各种离子对油罐罐底腐蚀的影响趋势以及离子之间的协同效应。结果表明,在桩西联合站原油稳定罐的油罐底水中Cl^- 、Ca²⁺ 含量比其它油田水质明显偏高,而这种水质也从某种程度上加速了油罐的腐蚀速率。

关键词: 水质,   , 局部腐蚀 , 极化曲线法 , 腐蚀速率, 离子协同效应