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Home  »  case studies • Oil and Gas   »   Offshore Caisson Legs Protection
Published by Cortec Middle East on December 14, 2019
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  • case studies
  • Oil and Gas
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Offshore Caisson Legs Protection

Offshore Caisson Legs Protection

Challenge

A major producer of oil and gas from the offshore areas of Abu Dhabi in the United Arab Emirates operates multiple barge-type offshore platforms constructed on caisson legs. Previously, the internals of the platform caisson legs was left uncoated and filled with biocide-treated water and protected using suspended sacrificial anodes. Over time the anodes depleted and an alternative environmentally friendly method of protecting caisson legs was recommended.

Application
Application VpCI®-337 BD was sprayed in the caisson legs to stop bio-growth, VpCI®-609 S was then fogged into the void space to counter the dead volume of water at the bottom. Custom manufactured strips of Cortec’s Ecopouch® were then suspended from the top side for additional protection.

Conclusion
After two years, the pilot has been deemed a success and Cortec® VpCI® was proven to effectively mitigate corrosion in an offshore environment by reducing the corrosion rate in the protected leg Vs the control by 584%.

Products:

  • VpCI®-337 BD
  • VpCI®-609 S
  • EcoPouch®

Date:
October 2013

Distributor:
Kanoo Group

Location:
Abu Dhabi, UAE

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