Welcome to OAG

Design of Riser Guards

Design of Riser Guards

Project involved detailed engineering and design of riser guards for several platform structures, including dynamic boat impact analysis (USFOS), preparation of design reports and IFC drawings.

The design of the riser guards was based on the following principles:

  • The need to provide geometry that prevents the vessel having a direct line of approach onto the risers.
  • Structural arrangements that provide sufficient energy absorption capabilities for the intended vessel.
  • The desire to provide joint capacities greater than the tubular member plastic moments, particularly for joints of the riser guards at the points of attachment to the legs.
  • Elimination of potential snagging points.
  • Ease of fabrication and installation
  • Avoidance of poor fatigue details
  • Minimization of additional environmental loading

Featured News


Design of Platform Strengthening and Repairs
Design of Riser Guards
Motion Analysis and Safe Operating Envelope
Pipelay Hold-Back and Bowstring Assessment
Procurement and Installation of Hybrid Solar Power
Strengthening Modification and Repair (SMR)
Structural Assessment of Platform Structures
Tower Integrity Management
Transportation Analyses

The company

Capabilities / Competencies
Company & Services
Geotechnical Engineering
Personnel Resource
Pipeline Engineering
Structural and Advanced Mechanics Engineering