In order to reduce the time for pipeline inspections, Subsea7 are looking for a non contact tool that can measure field gradients.
We are looking for non intrusive technologies or techniques, that will allow us to monitor the cathodic protection system in marine environment from +50m sea level to 3000m water depth, as well as understand the high level condition (wall thickness loss, areas of corrosion) of the integrity of the subsea infrastructure (pipelines and structures).
Ideally a solution would provide:
• Data that confirms the infrastructure is gaining adequate protection from the installed system • Ability to detect wall thickness deterioration • Screening capability rather than point location – though both will be considered • Has to be non intrusive • Options for deployment include diver, ROV, Autonomous Vehicles and standalone sensors
Requires contact with the pipeline or extensive excavation of the pipeline.