新型地面集输管线防腐蚀涂层的适用性
Applicability of Anti-corrosion Coatings for New Type Ground Gathering Pipelines
摘 要
采用高温高压反应釜模拟塔河油田高矿化度，高H2S和CO2的腐蚀环境，通过检测高温高压腐蚀试验后涂层的外观、铅笔硬度、附着力、漏点、耐冲击等物理性能，研究了JG-01耐酸涂层和EP-98环氧无溶剂涂层的防护性能。结果表明：经30 d试验后，EP-98环氧无溶剂涂层表面起泡，发生失效；JG-01耐酸涂层的各项物理性能均为未发生改变。经过高温高压腐蚀试验后，JG-01耐酸涂层的极化曲线出现明显钝化现象，腐蚀电流密度基本不变，且仍具有极高的极化电阻，即JG-01耐酸涂层在该环境中具有较好的抗腐蚀性能。
涂层
性能检测
电化学阻抗
塔河油田
corrosion protection
coating
performance test
EIS
Tahe oilfield
Abstract
A high-temperature and high-pressure reactor was used to simulate on-site corrosion environment of Tahe oilfield with high salinity and high H2S and CO2. The protective properties of JG-01 acid-resistant coating and EP-98 epoxy solvent-free coating were studied by testing the physical properties of coating, pencil hardness, adhesion, leak point and impact resistance after high temperature and high pressure corrosion test. The results showed that after 30 days of testing, the surface of EP-98 epoxy solvent-free coating foamed and failed; the physical properties of JG-01 acid-resistant coating were unchanged. After the high temperature and high pressure corrosion test, the polarization curve of the JG-01 acid-resistant coating showed obvious passivation, the corrosion current density was basically unchanged, and still had a very high polarization resistance. JG-01 acid-resistant coating has good corrosion resistance in this environment.
中图分类号 TG174 DOI 10.11973/fsyfh-201907010
所属栏目 应用技术
基金项目
收稿日期 2019/1/15
修改稿日期
网络出版日期
作者单位点击查看
引用该论文: YAO Bin,XIAO Wenwen,WU Xiaoxian,XU Yanyan,GE Pengli,GAO Duolong. Applicability of Anti-corrosion Coatings for New Type Ground Gathering Pipelines[J]. Corrosion & Protection, 2019, 40(7): 519
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参考文献
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