环氧玻璃鳞片涂层在塔河油田的腐蚀行为  

Corrosion Resistance of Epoxy Glass Flake Coating in Tahe Oilfield

作　　者：陈伟[1] 肖雯雯[1] 吕江[2] 郭鹏程[2] 蔡锐[3] CHEN Wei;XIAO Wenwen;Lü Jiang;GUO Pengcheng;CAI Rui(SINOPEC Key Laboratory of Enhanced Oil Recovery in Carbonate Fractured-Vuggy Reservoirs,SINOPEC Northwest Oilfield Company,Urumqi 830011,China;First Natural Gas Plant,PetroChina Changqing Oilfield Company,Jingbian 718500,China;State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials,CNPC Tubular Goods Research Institute,Xi’an 710077,China)

机构地区：[1]中国石油化工股份有限公司西北油田分公司,中国石油化工集团公司碳酸盐岩缝洞型油藏提高采收率重点实验室,乌鲁木齐830011 [2]中国石油长庆油田分公司第一采气厂,靖边718500 [3]中国石油天然气集团公司管材研究所石油管材及装备材料服役行为与结构安全国家重点实验室,西安710077

出　　处：《腐蚀与防护》2021年第5期26-33,共8页Corrosion & Protection

摘　　要：采用差示扫描量热法分析了环氧玻璃鳞片涂层在高酸、强碱环境中的耐腐蚀性能。利用高温高压釜模拟塔河油田的服役工况条件,研究了涂层在模拟工况条件的气、油、水三相中的耐蚀性,并利用电化学测试对涂层在6种模拟工况条件下的电化学特征进行了分析。通过涂层剥离性能测试数据对涂层寿命进行预测,并通过现场试验验证预测结果。结果表明:环氧玻璃鳞片涂层的玻璃化转变温度较高,在高酸、强碱及服役工况环境中均具有较好的耐腐蚀性能,其阻抗值均高于10^(7)Ω·cm^(2);涂层预测寿命远小于实际工况条件下涂层的寿命,建议以现场挂片数据进行涂层寿命预测。The corrosion resistance of epoxy glass flake coating in high acid and strong alkali environments was studied by differential scanning calorimetry(DSC).Using high temperature autoclave to simulate the service conditions of Tahe Oilfield,the corrosion resistance of the coating in gas,oil and water under the simulated working conditions was studied.The electrochemical characteristics of the coating under six simulated working conditions were analyzed by electrochemical test.The coating life was predicted based on the data from peeling performance test,and the predicted result was verified through on-site test.The results show that the glass transition temperature of epoxy glass flake coating was fairly high.The corrosion resistance of the coating in high acid and strong alkali environments or under the simulated working conditions was good,and the impedance values of the coating were over 10^(7)Ω·cm^(2) all.The predicted life of the coating was far less than that under actual working conditions.So it was suggested to predict the coating life with the data of coupons in field.

关 键 词：涂层 环氧玻璃鳞片 热扫描 腐蚀 

分 类 号：TG172[金属学及工艺—金属表面处理]