Optimization of Cathodic Protection Design for Oil and Gas System

The Puma Energy Cathodic Protection (CP) terminals in Papua New Guinea have been under construction and maintenance by reliable external CP contractors commissioned by Puma Energy. The facilities have been effectively monitored and checked using voltmeters and ammeters for their possible corrosion and failure which may cause damage to the structures therein. The study and research have also been conducted as my final thesis from the data made available by the Puma Energy cathoidic protection engineer and concluded in conjunction with the various contractors. All Puma Energy terminal facilities have been protected from corrosion using the sacrificial anodes cathodic protection method throughout Papua New Guinea. This has been initially accepted and practiced or constructed by the company because it costs less and is reliable, however, the magnitude of protection rendered to the facilities was considered inadequate. It has been noted that the facilities in the Alotau terminals in Papua New Guinea do not have sufficient protection from the sacrificial anodes protection system. The sacrificial anode CP system has been recommended by the external contractors and proposed for possible replacement option with other means of protection such as impressed current cathodic protection method. As per the raw data made available by Puma Energy PNG limited, it was discovered and obvious that the magnitude of protection rendered by sacrificial anodes has been considered nonperforming and weak. The sacrificial anodes CP system has been declining and not performing in accordance with Australian and New Zealand standards and specification AS2832.1.2015 and (National Association of Corrosion Engineers International 2000.