子母管型式长输海底管道阴极保护设计

Cathodic Protection Design for a Long Piggyback Subsea Pipeline

本文给出了某子母管型式的长输海底管道阴极保护设计过程,论述了各种设计参数及影响其取值的因素。子母管型式海底管道系统应整体考虑阴极保护,安装于母管的阳极需同时为母管和子管提供保护电流,二者之间通过每隔一定间距的电缆连接实现电连通。

This paper presented the cathodic protection design for a long piggyback subsea pipeline, and discussed various design parameters and the factors affecting their values. Cathodic protection should be considered for the whole piggyback pipeline system. Anodes installed on the larger pipeline should also provide protective current for the smaller pipeline. Electrical connection between the two pipelines is achieved by cable at regular distance.