海洋多井口桩基平台阴极保护及阳极模块化安装技术研究

Cathodic protection and anodes installation for offshore pile-supported platform with multiple wellheads

针对渤海湾某海洋多井口桩基平台所需阳极数量多、阳极不能陆上预装且下部结构简单导致阳极无足够安装空间的问题,提出了阳极模块化安装技术。结合该平台设计,论述了桩基平台阴极保护关键参数计算、阳极选型以及模块化阳极安装具体方法,可为海洋多井口桩基平台阴极保护设计与实施提供一定的借鉴。

An offshore pile-supported platform with multiple wellheads in the Bohai Bay demands a larger number of anodes,however these anodes can not be preinstalled onshore and there is no enough location for anodes installation because of the simple substructure.Therefore,the modular anode installation technique is put forward.In this paper,combined with a pile-supported platform design,the key parameters calculation of cathodic protection,anode selection and modular anode concrete installation method are discussed,which provides certain reference and guidance for cathodic protection design and implementation for offshore pile-supported platform with multiple wellheads.