Way Ahead In Corrosion Control

RetroLink

Anode string for short-term life extension

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Protecting over 10% of structures on the Gulf of Mexico’s continental shelf

Retrolink™ is a cost-effective cathodic-protection retrofit system consisting of 3 to 15 anodes cast directly onto a heavy-duty wire rope.

The Retrolink™ attaches electrically and mechanically above the water line, allowing the string to hang in the seawater with at least two anodes situated in the mud. The installation is almost always performed from a small vessel without using divers. This solution is suitable for any structure in less than 85 feet of water.

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Storm resilience

Resistant to inclement conditions, Retrolink™ is consistently able to endure category 2 hurricanes and often remains in service after category 4 storms.

Post-hurricane inspections in 2009 found that 95% of Retrolinks were still working after hurricanes Gustav, Ike, Rita, and Katrina.

Modular links can be stored on the boat, cut to length and installed as necessary. This is especially convenient during post-hurricane inspections.

Key design factors

Modular design allows for a high degree of customization and simple implementation. Depending on the salinity of the water, you may select zinc or aluminum anode material. Zinc anodes are recommended if water is less than 12‰ of full-strength seawater.

Easy to install: The topside suspension assembly can be affixed to horizontal or vertical members using crevice-corrosion preventing I-Clips™ or a weld. The isolator can also have links for protecting offshore risers. Links can even be attached subsea using a modified hang-off.

Fully adjustable: The PVC-coated wire rope used for corrosion resistance also allows hang elevations to be easily adjusted in the field to bring protection to the areas needing it most.  

Quality control: Deepwater draws anodes from two local affiliate foundry locations, allowing us to strictly regulate QA/QC for all the aluminum and zinc anodes we use in our systems.

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Project experience

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Miles of protection

A total of 18.34 miles of Retrolink currently protect structures in the Gulf of Mexico.

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Long life

If all Retrolinks put in service since 2009 were laid end to end, they would measure 18.34 miles, five miles longer than Manhattan Island. That's 96,826' in length, and the average length of a link is just 48 feet.

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Proven technology

Over 500 structures are currently protected by Retrolinks in the Gulf of Mexico alone.

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No weak links

Deepwater's premium foundry relationship has established proven QA/QC standards.

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Major operators

Widely implemented by many major oil companies, Retrolink has been embraced as the industry's offshore, shallow-water retrofit system of choice.

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You're in good company

One out of every 10 structures in the Gulf of Mexico is currently fitted with Retrolinks.

Protecting the Ocean Star

Retrolink is so effective at slowing the corrosion of assets that it protects the Ocean Star Museum, a place where maritime stands still.

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