纳米改性环氧粉末涂层在塔河油田的适应性研究  

Study on applicability of epoxy nanocomposite powder coating in Tahe Oilfield

作　　者：肖雯雯[1] 江玉发 杨建勃 时腾 高多龙 蔡锐[3] XIAO Wenwen;JIANG Yufa;YANG Jianbo;SHI Teng;GAO Duolong;CAI Rui(SINOPEC Northwest Oilfield Company,Sinopec Key Laboratory for EOR of Fracture Vuggy Reservoir,Urumqi 830011,China;不详)

机构地区：[1]中国石油化工股份有限公司西北油田分公司,中国石化缝洞型油藏提高采收率重点实验室,新疆乌鲁木齐830011 [2]中国石油广东石化公司,广东揭阳515200 [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,陕西西安710077

出　　处：《电镀与涂饰》2020年第10期634-641,共8页Electroplating & Finishing

摘　　要：利用高温高压釜模拟纳米改性环氧粉末内涂层在某油田的服役工况,以涂层的热扫描特征为切入点,研究了它在中性盐水、高酸、强碱中的耐蚀性,以及在模拟工况条件下气、油、水三相中的耐蚀性,并对其在6种模拟工况条件下的电化学阻抗谱特征进行了分析。结果表明,涂层在中性盐水、高酸、强碱中浸泡30 d后的玻璃化转变温度超过90℃,可在较高的温度下使用,并具有较好的耐化学腐蚀和工况腐蚀特征。即使在模拟工况中试验30 d后,其电化学阻抗值仍高于107Ω·cm2。探讨了涂层的防腐机制。The service condition of an epoxy nanocomposite coating in the Tahe Oilfield was simulated using a hightemperature autoclave.The resistance of the coating to neutral saline water,strong acid,and strong alkali The thermogravimetric behavior of the coating was examined with the combination of thermogravimetric analysis.The corrosion resistance of the coating under working condition when being placed in gas,oil,and water phases were studied.The electrochemical impedance characteristics of the coating in 6 kinds of simulated operating conditions were analyzed.The results showed that the glass transition temperature of the coating was higher than 90℃ even after being immersed in neutral saline water,strong acid,and strong alkali for 30 days,indicating that it could be used in a high-temperature environment.The coating had good resistance to chemicals and corrosion under working conditions.The electrochemical impedance of the coating was higher than 107Ω·cm……2 even after being tested in operating conditions for 30 days.The corrosion protection mechanism of the coating was discussed.

关 键 词：环氧 纳米粒子 粉末涂层 油田 腐蚀 玻璃化转变温度 电化学 

分 类 号：TE988[石油与天然气工程—石油机械设备] TG178[金属学及工艺—金属表面处理]