Riser Inspections

Overview

A typical Re-Certification Survey consists of a re-class inspections of the Riser Joints and Telescopic Joints.

  • General & Critical Visual Inspections
  • Surface Examinations (Penetrant & Magnetic Particle Inspections)
  • Inner Surface Video Inspections
  • Ultrasonic Weld Inspection using the Time of Flight Diffraction (TOFD) and Phased Array Method
  • Wall Thickness Surveys
  • Dimensional Surveys
  • Inspection of the Dog Assemblies
  • Visual inspection of Riser Accessories, Buoyancy etc.

Benefits of Offshore Inspection

  • Potential Safety hazard eliminated by negating handling and movement.
  • Handling and shipping damage is minimized.
  • On-site inspection reduces downtime.
  • Allows for inspection without the removal of buoyancy and/or Auxiliary lines and their coatings.
  • An Improved Inspection using advanced Wall Thickness surveys and Weld Inspection techniques.
  • Digitally recorded results and video images for future comparison and trending.
  • Archived results for easy retrieval of inspection.
  • The early identification of future repair requirements.

Class Inspection

  • Optional Baseline surveys - Wall thickness and Weld Inspection data can be collected and used as footprint for future inspections
  • Period Inspection - ‘between wells’ aboard the rig, carried out by rig personnel
  • Preventative Maintenance - Period Inspection aboard the rig (e.g. 20% per year)
  • 5 Yearly Inspection - can be deployed on the rig or on site, in the region