CP survey of subsea pipelines & structures
Integrity management & life extension of subsea pipelines / structures
FiGS® CP survey is a unique approach to integrity management and life extension of offshore structures and pipelines with cathodic protection (CP). On both exposed and buried pipelines and structures, it provides an accurate condition assessment and detects even minor coating damages. FiGS® is a field gradient sensor that measures current output from anodes, current density of steels and current drain, along with a potential profile of buried pipelines.
Performing a FiGS® CP survey provides you with an accurate image of the assets condition, which allows for qualified decisions and substantial cost savings when considering life extension and anode replacement. This approach heavily increases the return on your investment, while providing you with the confidence level you deserve.
FiGS® sets a new standard with regards to sensitivity (signal to noise ratio), being about 50 times more sensitive than other sensors on the market. The high sensitivity is key to get viable data on buried structures and allows inspections from a greater distance, making it fit for combination with GVI surveys.
It also provides the direction of the electric currents, enabling us to pinpoint areas of interest, such as coating damages, faulty anodes, stray currents and more. Knowing the strength and direction of the electrical fields tells us which anodes are protecting what, and how they interact with each other. This provides excellent input to CP computer modelling of single structures, or even entire fields.