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CP Mat™
Cathodic protection mattress for pipelines

The CP Mat utilizes the proven design of the concrete stabilization mattress to provide CP in tough conditions.

CP Mat combines the proven technology of a segmented concrete stabilization mattress with an integrated cathodic protection system. Placement of a CP-Mat provides the required stabilization and the added benefit of up to 30 years of cathodic protection for up to 2 miles of pipeline in each direction. Tieback to the pipeline can be made with diver or ROV using the field proven RetroClamp™ system. There is no need to remove a pipeline’s concrete weight coating. Mats are provided with patented non-shielding soft pads on the underside and can be loaded with aluminum or zinc anodes, making them suitable for all water chemistry (from seawater to river water).

Related Technical Information

Recent Advances in Offshore Cathodic Protection Monitoring

Abstract: Offshore production facilities and pipelines are being installed in new, more hostile environments. Advances in Cathodic Protection Monitoring for new structure types in deepwater as well as for high temperatures are discussed.

Cathodic Protection Monitoring in Alaskan Waters

Pipelines and structures located offshore of Alaska face unique challenges to monitoring cathodic protection. Advances in Cathodic Protection Monitoring technology are discussed. New portable ROV instrumentation as well as fixed monitoring of parameters affecting CP system performance ...

Full Online Technical Library

To see a complete list of technical papers and articles about cathodic protection and corrosion control, please visit the technical library section of this web site.


Retrosled aluminum anode sled for offshore pipelines

Key design points

Ballast provides a solution for harsh environments

The CP Mat's weight and stability make it ideal for replacing the anodes on aging pipelines in harsh environments (e.g. the North Sea).

RetroClamp tie-back

The electrical connection between the anodes and the asset receiving the cathodic protection is made using the RetroClamp system, which can be installed via ROV or Diver.

Quality Control

Deepwater uses anodes from our two foundry locations (Deepwater Gaus - Houston, TX and Deepwater MPE - Kuala Lumpur), allowing us to strictly regulate QA/QC for all the aluminum and zinc anodes we use.