Riser Capabilities

OPR has extensive project experience in the design and integrity assurance of all types of risers, including SCRs, Flexible Risers, Hybrid Risers, TTR, Drilling Risers, and Umbilical.

  • Steel Catenary Risers (SCRs):
    • Design Projects:
      • Sizing of Riser Pipe, Flexjoint and Other Components;
      • Interference Analysis to Determine Riser Host Layout;
      • Extreme Response, VIV and Fatigue Analyses.
    • SCR Technology Projects:
      • Technology Gaps and Forward Plan for XHPHT SCR;
      • Technical Feasibility for Ultra-Deepwater Applications;
      • Selection of Vessels that are Feasible for SCRs;
    • Verification Experience:
      • Independent 3rd Party Analysis and Spec Review.
  • Flexible Risers:
    • Integrity Management Projects:
      • Risk-based Integrity Management.
  • Hybrid Risers:
    • Independent Hybrid Riser Engineering.
    • Detailed Design Experience:
      • Sizing of Riser Components and Suction Piles;
      • Analysis to Confirm Technical Feasibility.
    • General Project Experience:
      • ITT Package Preparation Projects for Oil Companies;
      • Consulting Services to Hybrid Riser Projects;
      • Studies of Hybrid Drilling Risers.
  • Top Tensioned Risers:
    • Spar Riser Experience:
      • FEED Studies;
      • Detailed Design and Analysis;
      • 3rd Party Independent Analysis and Review.
    • TLP Riser Experience:
      • Detailed Design and Analyses;
      • 3rd Party Independent Analysis and Review.
  • Drilling Risers:
    • Rig Excursion and Operability and Drift-off
    • Recoil Analysis
    • Hang-off and Running Retrieval
    • Comprehensive VIV Fatigue Analysis
    • Currents and VIV Integrity Assurance Systems
    • Project Experience:
      • Extensive Analysis, Laboratory Tests and Integrity Monitoring Work;
      • Estimate of Scope of Work, Cost and Schedule with Vendors;
      • Operability and Fatigue Analyses;
      • Hybrid Drilling Riser Studies.
  • Umbilical:
    • Design Projects:
      • Sizing of Umbilical and Cross-Section Design;
      • Interference Analysis to Determine Umbilical Host Layout;
      • Preliminary Strength and Fatigue Analyses.
    • Verification Experience:
      • Laboratory Qualification Tests;
      • Independent 3rd Party Analysis and Spec Review.