The science of subsea corrosion control
What is cathodic protection?
CATHODIC PROTECTION 101
Cathodic protection prevents corrosion by converting all of the anodic (active) sites on the metal surface to cathodic (passive) sites by supplying electrical current (or free electrons) from an alternate source. Usually this takes the form of galvanic anodes, which are more active than steel.
Cathodic protection services
Measuring the cathodic protection potentials on a structure or pipeline using reference electrodes gives engineers the data they need to evaluate anode performance.
Surface area, coatings, electrolyte properties and design life determine the amount of cathodic protection required. Designing for anode retrofits on existing structures must also consider the state of the original anode system.
Building sacrificial and impressed current anode systems that perform for up to 25 years offshore requires high-quality anode materials and rugged construction.
Cathodic protection projects
Anode retrofit projects for aging fixed platforms
Subsea pipeline anode inspection and replacement projects.
Anode retrofit projects for FPSO hulls and floating production.
Anode designs for drill stacks and production risers.
Tanks and vessels
Anode systems installed inside tanks and process vessels.
Docks and jetties
Day-one and retrofit anode projects for terminals and jetties.
Day-one and retrofit anode projects for subsea production.
Retrofit anode systems and monitoring projects for wind.
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