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水溶性咪唑啉类缓蚀剂的合成及性能研究
引用本文:邢占忠,李永剑. 水溶性咪唑啉类缓蚀剂的合成及性能研究[J]. 应用化工, 2011, 0(12): 2156-2159
作者姓名:邢占忠  李永剑
作者单位:陕西延长石油(集团)有限责任公司靖边采油厂;
摘    要:针对油田注水开发过程中存在的腐蚀问题,合成了水溶性的咪唑啉类缓蚀剂LRX,利用静态挂片法和极化曲线法考察了其缓蚀性能。结果表明,在苯甲酸与二乙烯三胺的摩尔比为1∶1.4,咪唑啉中间体与氯乙酸的摩尔比1∶1.5,季铵化温度控制在60℃,反应时间4 h时,合成的咪唑啉类缓蚀剂LRX为阳极型缓蚀剂,对20#钢的缓蚀率达85%;合成的咪唑啉类缓蚀剂LRX与阻垢剂HEDP复配后,在缓蚀和阻CaCO3垢性能方面具有良好的协同效应。

关 键 词:油田注水  咪唑啉  缓蚀剂  阻垢剂

Synthesis and performance of the water-soluble imidazoline corrosion inhibitor
XING Zhan-zhong,LI Yong-jian Co.,Ltd.,Jingbian ,China). Synthesis and performance of the water-soluble imidazoline corrosion inhibitor[J]. Applied chemical industry, 2011, 0(12): 2156-2159
Authors:XING Zhan-zhong  LI Yong-jian Co.  Ltd.  Jingbian   China)
Affiliation:XING Zhan-zhong,LI Yong-jian (Oil Production Plant of Jingbian,Shaanxi Yanchang Petroleum(Group) Co.,Ltd.,Jingbian 718500,China)
Abstract:One water-soluble imidazoline corrosion inhibitor LRX was synthesized aimimg at corrosion problems of injection waters system in oilfield.Corrosion performance of LRX was studied through the static hanging experiments and the polarization curves.The results showed imidazoline corrosion inhibitor LRX was an anodic corrosion inhibitor and had good corrosion inhibition rate(85%) to 20# steel when the molar ratio of benzoic acids to diethylenetriamine was 1 ∶ 1.4,the molar ratio of intermediate imidazoline to chloroacetic acid was 1 ∶ 1.5,the quaternized temperature was 60 ℃ and the reaction time was 4 h.The mixture of LRX and HEDP had excellent synergy effect on the corrosion and the scales of CaCO3.
Keywords:injection waters of oil field  imidazoline  corrosion inhibitor  scale inhibitor  
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