Optimization for the cathodic protection system based on numerical simulation

Abstract

Cathodic protection was one of important method for the corrosion prevention. With the expand of pipeline at Jingbian gas field, the cathodic protection system had been not qualified for the corrosion prevention of pipeline at Jingbian gas field. The results of survey for pipeline in 2018 years suggested that there were less-protection or over-protection for the corrosion prevention of pipeline. In this study, it was simulated by the COMSOL software to clear the regulation of current for pipeline in different cathodic protection area, and learn the overall situation of cathodic protection station in Jingbian gas field. Finally, optimizing the cathodic protection system for improving the effect by cathodic protection and ensuring the safety production.