利用交流阻抗（EIS）、线性极化、动电位极化和拉曼光谱等方法对炔氧甲基季胺盐和咪唑啉在常温常压CO2饱和的模拟油田产出水中的电化学行为和缓蚀性能进行了研究.结果表明:随两种缓蚀剂的加入,体系的阳极电流都明显减小,自腐蚀电位都明显正移,都存在阳极脱附现象和浓度极值现象,炔氧甲基季胺盐的极值浓度为150mg/L，而咪唑啉的极值浓度为100mg/L。并且咪唑啉缓蚀剂的缓蚀效果更佳。但在7m/s时直至缓蚀剂浓度为300mg/L时也没有发现静态下的浓度极值现象。
A study on the effect of IMC-80-Q(quaternary alkynoxymethyl amine) and IMC-871-W(imidazoline) on the electrochemical behavior and inhibitor properties of N80 steel in 3% NaCl saturated by CO2 at 25±10C was carried out by means of weight loss and electrochemistry techniques including EIS, potentiodynamic polarization and linear polarization. The sharp decrease of anodic current density ia, positive shift of corrosion potential (Ecorr) and anodic desorption were observed in inhibited solutions.The electrochemical parameters Rp,Cd and Rt exhibited extreme values at certain concentrations of two inhibitors,150mg/L for IMC-80-Q and 100mg/L for IMC-871-W ,respectively.IMC-871-W had better inhibitor properties than IMC-80-Q.The weight loss test at 7m/s showed that the cumulative mass loss was decreased sharply for solutions containing IMC-80-Q, compared with inhibitor-free brine, and extreme-value-phenomena of concentration was not observed up to 300mg/L.
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