Oil and gas subsea infrastructure

N-Sea has the in-house expertise to manage your inspection campaign with the availability of qualified 3.4 certified divers supported by our team of surveyors and data centre back-up.

Inspections are performed by divers and by our own fleet of inspection class and work class ROVs, depending on the working depth and on the type of offshore subsea structures.

Inspection services may include:

  • video inspection
  • leak detection
  • marine growth measurement
  • weld inspection
  • CP Readings
  • UT Readings
  • MPI Readings
  • ACFM
  • well head monitoring
  • cathodic protection
  • magnetic particle
  • alternate current frequency
  • flooded member detection (FMD)

Our professional team will provide a concise accurate report and a tailor-made solution.


Inspection of offshore jackets and structures (fixed and floating) including the subsea infrastructure is one of the cornerstones of our business
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