固体缓蚀剂对抽油杆材料CO_2腐蚀行为的影响  

Effect of Solid Inhibitor on CO_2 Corrosion Behavior for Sucker Rod

作　　者：施明华[1] 王旭东[2] 唐晓[2] 

机构地区：[1]胜利油田海洋采油厂,东营257237 [2]中国石油大学(华东)机电学院材料系,青岛266580

出　　处：《腐蚀与防护》2016年第5期402-406,共5页Corrosion & Protection

基　　金：山东省优秀中青年科学奖奖励基金(BS2010NJ025)

摘　　要：为了减缓采油过程中金属装备的CO_2腐蚀,有针对性地研制了两种固体缓蚀剂。通过极化曲线,电化学阻抗谱、滴定法对研制的固体缓蚀剂的缓蚀率和缓释效果进行评价。结果表明:固体缓蚀剂A为孔隙释放型固体缓蚀剂,固体缓蚀剂B为溶解释放型固体缓蚀剂,两种固体缓蚀剂均可满足油井采出液环境中采油装备CO_2腐蚀控制的需求。In order to slow down the CO_2 corrosion of metal equipment during the process of oil production,two kinds of solid inhibitors were investigated.Polarization curve,electrochemical imperdance spectroscopy and titration method were used to evaluate the inhibition efficiency and effectiveness of the solid inhibitor.The results showed that solid inhibitor A was a pore-release solid inhibitor,and solid inhibitor B was a dissolution-release solid corrosion inhibitor.Both the two solid inhibitors can meet the needs of CO_2 corrosion for oil production equipment in oil well environment.

关 键 词：CO2腐蚀 固体缓蚀剂 缓蚀机制 腐蚀电化学 采油装备 

分 类 号：TG174.4[金属学及工艺—金属表面处理]