高温高剪切力复杂湿气工况下缓蚀剂的评价  

Evaluation of Corrosion Inhibitors under Complicated Moisture Conditions with High Temperature and High Wall Shear

作　　者：熊荣雷 柳鹏 刘英坤 XIONG Rong-lei;LIU Peng;LIU Ying-kun(China National Offshore Oil Corporation Zhanjiang Branch,Haikou 570105,China;Safetech Research Institute,Co.,Ltd.Beijing 102209,China)

机构地区：[1]中海石油(中国)有限公司湛江分公司,海口570105 [2]安科工程技术研究院(北京)有限公司,北京102209

出　　处：《全面腐蚀控制》2021年第6期25-29,共5页Total Corrosion Control

摘　　要：本文以电化学与流动环路结合的方式评价了一种计划用于高剪切力复杂湿气工况下的咪唑啉类缓蚀剂。结果显示:98℃的高温并未影响缓蚀剂的稳定性;通过增加缓蚀剂的使用浓度能够提高缓蚀剂的缓蚀效果,但同比来说,降低工况的苛刻程度对腐蚀速率的影响更大。In this paper,an imidazoline corrosion inhibitor planned to be used in high wall shear stress and complex wet gas conditions is evaluated by the combination of electrochemistry and flow loop.The results showed that the high temperature of 98℃did not affect the stability of the corrosion inhibitor;by increasing the use concentration of the corrosion inhibitor,the corrosion inhibition of the corrosion inhibitor can be improved.But compared with the same period of last case,reducing the wall shear stress of working conditions has a greater impact on corrosion inhibitors.

关 键 词：复杂湿气工况 缓蚀剂评价 壁面剪切力 线性极化电阻 流动环路 

分 类 号：TE88[石油与天然气工程—油气储运工程]