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Deepwater installs two RetroBuoy™ systems on Gulf of Mexico platform

  • 1
    Retrobuoy sled
  • 1
    Transformer rectifier
  • 1
    Power cable between RB & TR

South Pass 62-C Two Retrobuoy™ systems replace spent anodes on a 330ft platform in the Gulf of Mexico.

The project

Deepwater Corrosion Services, Inc. recently retrofitted an eight-leg, fixed steel jacket in the Gulf of Mexico with two RetroBuoy impressed-current cathodic-protection (ICCP) sleds. Sitting in about 330ft of seawater, the platform’s CP life will be extended by 20 years.

Each RetroBuoy system comprises:

  • One RetroBuoy sled
  • One Transformer-Rectifier (TR) power unit, which is installed topside
  • One power cable between the RetroBuoy and TR.

INSTALLATION (TIME: 30 HRS)

The RetroBuoys and their cables (terminated dockside in Carlyss, LA) were loaded onto the back deck of the dive support vessel and taken to the platform. Using saturation divers, the RetroBuoys were installed on the seabed about 175ft south of the base of the jacket.

The subsea cables were slowly unreeled and landed on the seabed in a figure-eight near the jacket base. The platform had a J-Tube available to pull the cables for both RetroBuoys through the splash zone.

Both RetroBuoys and cables were installed subsea in less than 30 hours.

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Overboarding - deploying Retrobuoy in the Gulf of Mexico

“Both RetroBuoys and cables were installed subsea in less than 30 hours.”

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ASSET INTEGRITY AND MONITORING SERVICES - REQUEST MORE INFORMATION

Structural health monitoring; visualising asset condition and providing remediation and life extension solutions.

Acteon’s asset integrity and monitoring solutions are designed to help our clients carry out diagnostic and remediation work including further monitoring/deep dive and the provision of proprietary retrofit cathodic protection CP packages suitable across a wide range of applications in marine energy and marine infrastructure markets.

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