大型结构生命扩展的阴极保护

RetroBuoy is a remote anode system, ideally sitting approx 100 ft (30 m)
from the structure, producing excellent current distribution.

Product Overview

RetroBuoy is the state-of-the-art impressed current technology for offshore structures. The modular sled based system couples design flexibility with ease of installation using diver or ROV support. With a proven track record of success, the RetroBuoy system redefines impressed current retrofit technology, saving hundreds of thousands of dollars in CP retrofit costs on even modest retrofit programs.

The RetroBuoy system cuts retrofit costs by delivering more cathodic protection, more efficiently with each installed sled. One typical RetroBuoy sled can deliver up to 400 Amps of corrosion protection – enough to protect 80,000 square feet of steel. The conventional alternative protection would need 32 US tons of sacrificial aluminum.

Applications

Offshore platform jacket retrofit.

Very effective on multi-jacket complexes, capable of protecting multiple structures.

Spread-moored FPSOs.

Large dock structures.

Main Benefits

The lowest installed cost in the industry. Installation cost drives offshore CP retrofit budgets: install a single RetroBuoy sled or 48 pairs of sacrificial anodes weighing 500kg each.

Being a remote system, current distribution is optimized, and potential levels are maintained within a tight range over the whole structure.

Exhaustive attention has been given to every design detail; RetroBuoy is modular and redundantly designed.

The design allows the system to be quickly customized to provide sled current capacities from 250-500 Amperes for 15-25 year design life. It also allows us to provide prompt delivery – typically 4-6 weeks from order.

Buoyant anode transport allows system
to operate at optimum current levels.

Two 400 Amp units prior to deployment.

Available integral cable deployment hopper
can simplify installation.

RetroBuoy installed on bottom.

RetroBuoy during float deployment.

All four anode floats deployed.