SmartMat™
Cathodic protection and stabilization mattress for pipelines
The SmartMat has replaced the CP Mat as Deepwater's concrete mattress cathodic protection system.
The SmartMat combines the standard concrete stabilization mattress with an integral cathodic protection system comprising many small aluminum anodes to provide CP for pipelines in tough conditions. The mattress itself relies on the plastic Sea-Mat shells, which have revolutionized the deployment of offshore concrete mattresses. Rather than shipping a pre-poured concrete mattress, we can now ship a complete mat's worth of sea-struct shells and anodes to the site. These shells conveniently clip together and allow local crews to pour the concrete on-site.
Placement of a SmartMat will provide the required stabilization and the added benefit of up to 30 years of cathodic protection for up to 3 miles of pipeline (1.5 miles in each direction). Tieback to the pipeline can be made with diver or ROV using the field proven RetroClamp™ system. Originally designed to provide cathodic protection at pipe crossings, SmartMats 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
Extending the Life of Offshore Pipeline Cathodic Protection
Abstract: This paper discusses the practicalities of installing replacement cathodic protection to ageing offshore pipelines using diver assisted and diver-less systems.
Improvements in Offshore Pipeline Cathodic Protection
Abstract: Newly developed survey methods combined with innovative design software and low cost, easy-to-install hardware are helping to redefine cathodic protection & life extensions for offshore pipelines.
External Corrosion Control & Inspection of Deep Water Pipelines
Abstract: Pipe coatings with galvanic anode bracelets has worked equally as well in deep water as it has in shallow. There are however some very important differences in the way corrosion control ...
Corrosion Protection for High-Temperature Subsea Pipelines
A subsea pipeline and associated components have been protected from corrosion with a combination of a high temperature pipeline fusion bonded epoxy coating, a thermal spray aluminum coating ...
$('#product-image').cycle('fade');Key design points
Ballast provides a solution for harsh environments
The Mat's weight and stability make it ideal for replacing the anodes on aging pipelines in harsh environments.
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, and which does not require a pipeline's concrete weight coating to be removed.
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.