陕北油田注水腐蚀抑制剂的性能研究  

Study on the performance of corrosion inhibitors for water injection in Northern Shaanxi oilfield

作　　者：刘彦锋 赵新法[1] 王前进 凌洁[1] LIU Yan-feng;ZHAO Xin-fa;WANG Qian-jin;LING Jie(Key Laboratory of Cleaner Production and Equipment Protection of Coal Chemical Industry in Xianyang City,Shaanxi Energy Institute,Xianyang 712000,China)

机构地区：[1]陕西能源职业技术学院,咸阳市煤化工清洁生产与设备防护重点实验室,陕西咸阳712000

出　　处：《应用化工》2020年第12期3099-3102,共4页Applied Chemical Industry

基　　金：陕西省重点研发计划(2018GY-100)。

摘　　要：采用重量法研究了腐蚀抑制剂对N80钢在回注污水中腐蚀抑制性能,并通过极化曲线测试分析腐蚀抑制剂的缓蚀机理。研究表明,该腐蚀抑制剂在模拟水中具有优良的缓蚀效果,在温度(50±1)℃,实验时间7 d,腐蚀抑制剂的添加量为30 mg/L的条件下,缓蚀率可达70%以上,腐蚀速度<0.076 mm/a,可以满足油田注入水对管线与设备的防腐蚀性能的要求。The corrosion inhibition of N80 steel in reinjected wastewater was studied by gravimetric and electrochemical methods.The results show that the corrosion inhibitor has excellent corrosion inhibition effect in simulated water.Under the conditions of(50±1)℃,experiment time 7 d and the addition of corrosion inhibitor 30 mg/L,the corrosion inhibition rate can reach more than 70%and the corrosion rate is less than 0.076 mm/a,it can meet the anticorrosion requirements of injection water for pipelines and equipment.

关 键 词：陕北油田 注水 腐蚀 腐蚀抑制剂 

分 类 号：TE39[石油与天然气工程—油气田开发工程]