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中国南海涠洲油田W114A平台服役15年的水下钢结构腐蚀防护调查
引用本文:姚 平,鲍 祺,赵 霞,段继周,马士德.中国南海涠洲油田W114A平台服役15年的水下钢结构腐蚀防护调查[J].海洋科学,2011,35(1):54-58.
作者姓名:姚 平  鲍 祺  赵 霞  段继周  马士德
作者单位:1. 中海石油有限公司,湛江分公司,广东,湛江,524000
2. 中国科学院,海洋研究所,山东,青岛,266071;中国科学院研究生院,北京,100049
3. 中国科学院,海洋研究所,山东,青岛,266071
基金项目:国家科技支撑计划项目(2007BAB27B01)
摘    要:介绍了W114A平台在南海服役15年的水下钢结构的腐蚀与防护特检报告.检测表明,生物污损严重,最大附着厚度可达20 cm,阴极保护系统正常,保护效果良好.对检测方法和结果进行了分析发现,电位测量程序不妥,牺牲阳极物理尺寸的测量方法不准确,测厚点的基面清理不干净,不能准确地对平台的阴极防护效果进行评估,并对此提出了修改意...

关 键 词:海洋平台  水下钢结构  腐蚀
收稿时间:2010/1/18 0:00:00
修稿时间:2010/6/20 0:00:00

Corrosion and protection of the W114 offshore platform after a 15-year service in Weizhou oil field of the South China
YAO Ping,BAO Qi,ZHAO Xia,DUN Ji-zhou,MA Shi-de.Corrosion and protection of the W114 offshore platform after a 15-year service in Weizhou oil field of the South China[J].Marine Sciences,2011,35(1):54-58.
Authors:YAO Ping  BAO Qi  ZHAO Xia  DUN Ji-zhou  MA Shi-de
Institution:YAO Ping1,BAO Qi2,3,ZHAO Xia2,DUN Ji-zhou2,MA Shi-de2(1.China National Offshore Oil Corporation,Zhanjiang 524000,China,2.Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,3.Graduate School of Chinese Academy of Sciences,Beijing 100049,China)
Abstract:Corrosion and protection of the underwater steel structures for W114A platform were investigated. The offshore platform has been in service in the South China Sea for 15 years. It was found that the bio-fouling was serious and the maximum attachment thickness was 20cm, while, the cathodic protection system was normal and the protective effect was favorable. After analyzing the detective methods and their results, some problems were found. The program of potential detection was inappropriate, the detection method for physical size of the sacrificial anodes was inaccurate, and the base surface of the thickness measurement points was not clean; therefore, the cathodic protective effect could not be accuraely evaluated. To solve these problems, some valuable suggestions are put forward accordingly.
Keywords:offshore platform  underwater steel structures  corrosion
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