本 科 毕 业 设 计（论文）题 目：注气井耐氧缓蚀剂优选及其缓蚀机理讨论 学生姓名：王俊答学 号：1309050232专业班级：材料物理 13-2 班指导老师：胡松青2025 年 6 月 18 日注气井耐氧缓蚀剂优选及其缓蚀机理讨论摘 要氧腐蚀是油田常见的腐蚀形式之一，严重影响了油田的正常生产。缓蚀剂防腐技术作为一种简单高效的防腐手段，能够有效地减缓油田集输管网的腐蚀。为了筛选出针对油田存在的氧腐蚀问题的缓蚀剂，本文采纳电化学与失重实验相结合的方法，通过评价三种缓蚀剂的缓蚀性能，筛选出适用于油田氧腐蚀环境的缓蚀剂，得出如下结论：（1）理化性能讨论表明缓蚀剂水溶性与稳定性均较好。（2）电化学实验讨论表明喹啉季铵盐缓蚀剂的自腐蚀电流最小，腐蚀速率最慢，缓蚀效果最显著。（3）失重实验讨论表明喹啉季铵盐缓蚀剂缓蚀效果最好。选择三种缓蚀剂对不同注空气工况条件讨论揭示了含氧量、温度、浓度对缓蚀剂缓蚀率的影响规律，并讨论了缓蚀剂复配协同效应。经过分析得到适宜油田环境的优质缓蚀剂是喹啉季铵盐缓蚀剂。关键词：氧腐蚀；耐氧缓蚀剂；电化学；高温高压；缓蚀性能 The study on inhibition mechanism of resistant to oxygen inhibitor and preferred inhibitor in gas injection wellAbstractOxygen corrosion is one of the common forms of corrosion in oilfields, which seriously affects the normal production of oil fields. Corrosion inhibitor anti-corrosion technology as a simple and efficient anti-corrosion means, can effectively slow down the oil field gathering pipe corrosion. In order to screen out the corrosion inhibitor for the existence of oxygen corrosion in the oil field, this paper uses the method of electrochemical and weightlessness experiment to evaluate the corrosion inhibition performance of the three corrosion inhibitors, and select the corrosion inhibition agent, the following conclusions:(1) The physical and chemical properties of the corrosion inhibitor show that the water solubility and stability are good.(2) Electrochemical experiments show that quinoline quaternary ammonium...
