Protection Case of Oil Pipeline Under The Interference of Stray Current of Subway in Nearby Urban Area
The DC stray current of urban rail transit system(subway,light rail,etc.)has more and more serious influence on steel transmission pipelines around cities.Pipeline corrosion caused by DC stray current occurs frequently in oil and gas pipelines in the Pearl River Delta region,which has become a major risk threatening the safe operation of steel oil and gas pipelines.This paper introduces the evolution of cathodic protection potential data and external DC stray current interference in external inspection of a crude oil pipeline in Pearl River Delta region with the development of the city,and the method of dealing with stray current interference through feed test.This case can provide reference for stray current evaluation and protection of buried steel pipelines around cities and towns.
万方数据
维普
