Non-Invasive Inspection (NII) of cathodic protection systems in pipelines

Request Number N780264
Need details

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).





Key Success Criteria
Can accurately detect field gradients at water depths from +50m to 3000m
Is non intrusive (i.e. from external to pipe or structure)
Can provide in -situ results
System that can measure field gradient and detect areas of corrosion and determine wall thickness of pipelines.
Data could be automated rather than requiring manual processing.



Possible Approaches

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


Approaches not of interest

Requires contact with the pipeline or extensive excavation of the pipeline.

Preferred Collaboration types
  • Joint Development
  • Contract Research
  • Contract Analysis and Testing
  • Consulting
  • To Be Negotiated
Point of Contact
Oliver Worsfold
Area of Interest
  • Building & Construction
  • Chemical Manufacturing
  • Computer Hardware
  • Computer Software
  • Electronics & Electronic Components
  • Food & Beverage
  • Government
  • Manufacturing & Fabrication
  • Materials Processing
  • Medical Products & Services
  • Pharmaceuticals
  • Research Organizations
  • Universities & Colleges
Due Date
October 6, 2017
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