Background

Bespoke Cathodic Protection Engineering Solution

Background

The client embarked on a major refurbishment programme of work to extend the life of a platform in the North Sea. Along with a third party corrosion company, Proserv were engaged to supply a solution for the reinstatement of the Cathodic Protection (CP) system on the platform.

Background

Solution

Proserv’s friction welding technology was selected as the ideal solution to connect anode sled cables and discreet anodes to the platform. This method was chosen over an impressed current cathodic protection (ICCP) system because of its reliability, ease of deployment and significant cost savings due to the ability to operate the technology using an ROV. As the friction welding anode retrofit was the preferred solution over ICCP, a bespoke interface solution was developed by Proserv to retrofit the anode sleds, the discrete anodes, monitoring sensors which measures the performance of the system over its life.

Background

Conclusion

This retrofit solution provided by Proserv is the first of it’s kind offering substantial cost savings over the ICCP system. The client, like many others, had concerns over retrofitting ICCP systems to platforms that originally had galvanic systems; this was due to the reliability and risk of stray currents which can accelerate corrosion rather than prevent it.

Offering a cost-effective galvanic retrofit solution which can be installed using ROVs provides substantial benefits to the client and is a unique offering in the market at present.

Benefits

  • ICCP used to be the only option for a major anode retrofit solution – now there is an alternative
  • Significant cost-savings of around 50%
  • ROV installation
  • Improved reliability
  • Low risk as no concern over stray currents like there is with ICCP

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