缓蚀剂CY-1的合成及其缓蚀性能的研究

以油酸、二乙烯三胺为原料，合成了一种油酸咪唑啉，用氯化苄对其进行改性得到缓蚀剂CY-1。采用失重法评价CY-1在减黏塔顶水中对20钢的缓蚀性能及其与油田水常用缓蚀剂GW1的复配效果。结果表明，在温度80 ℃、实验时间168 h时，缓蚀剂CY-1的最佳质量分数为200 μg/g，缓蚀率为74.31%；CY-1与GW1质量分数分别为100 μg/g时复配效果最佳，缓蚀率为79.86 %。

SYNTHESIS OF CORROSION INHIBITOR CY-1 AND ITS CORROSION INHIBITION PERFORMANCE STUDY

A new kind of oleic acid imidazoline corrosion inhibitor named CY-1 was synthesized from oleic acid/diethylene triamine and modified by zephirol.Its inhibition performance was investigated by weight loss test method using 20 steel as testing material and corrosive water collected on-site.Furthermore,its synergetic effects with other inhibitors which are commonly used in oilfield(e.g.GW1 and etc.)were tested as well.Test results show that under the conditions of an optimal CY-1 dosage of 200 μg/g,a testing temperature of 80 ℃ and a testing time of 168 h,the inhibiting rate is 74.31%;an optimum synergetic effect is obtained using a compounded inhibitor of CY-1 mixed with GW1 at the same dosage of 100 μg/g,the combined inhibiting rate is up to 79.86%.