Riser and Conductor Analysis

Global Riser Analysis is performed to asses the 'fitness-for-purpose' of the well conductors, risers, connectors, flange connections, etc. The analyses are performed for each phase of the development including drilling, completion, work-over and abandonment. The main focus is to verify the structural integrity and fatigue life of the system for the required lifetime of the well.

Here are some examples:

  • Exploration and appraisal wells
  • Platform drilled, tieback and sub-sea wells
  • Centraliser requirements and spacing
  • Sub-sea well operations from a jack-up, semi-submersible and other vessels
  • Drilling marine risers and landing strings
  • Wellhead fatigue
  • Rigid and flexible riser systems
  • Soil sensitivity and piling fatigue

The types of analyses typically performed for normal operation and accidental conditions are:

  • Strength and stability
  • Vortex induced vibration (VIV)
  • Wave induced fatigue (WIF)
  • Thermal
  • Snag and docking loads
  • Connection verification
  • Centralisation