石油平台水下部分阴/阳极监测系统

Monitoring System for Cathode and Anode of Underwater Structures of One Offshore Platform

关键词:  阴极保护  腐蚀监测  电位探头  电流探头

Key words:  cathodic protection  corrosion monitoring  probes of potential  probes of current

摘要:

[目的]对石油平台水下部分的阴极保护状况进行长期监测评价,以保证平台安全。[方法]通过实验室实验筛选电位及电流探头,然后在现场布设阴/阳极电位监测探头、阳极电流监测探头,并开展长期监测实验。[结果]10个阴极监测点的电位数据均为-1 031~1 009 mV,6个阳极监测点的电位数据在阳极的正常工作电位范围内,阳极的发生电流为1.30~1.55 A。[结论]打桩中探头未出现损坏情况,均获取了准确的数据,10个阴极监测点的电位达到保护要求,6个受监测阳极工作正常。

Abstract:

[Objective] The study aimed to evaluate the effect of cathodic protection system and carry out long-term monitoring for cathodic protection system of an oil platform.[Methods] The monitoring probes of potential and current were selected through laboratory experiments and were installed in this platform. Long-term monitoring experiments were carried out to obtain the data of potential and current.[Results] The values of potential on 10 monitoring points for cathodes were between -1 031 mV and -1 009 mV. The values of potential on 6 monitoring points for anodes were in the range of working potential of anodes. The values of current of anodes were between 1.30 A and 1.55 A.[Conclusion] The probes were not damaged during piling and obtained accurate data. The protective potential of 10 monitoring points for the cathodes could reach the requirements and the 6 anodes of monitoring worked very well.