offshore verification and CVA

System Verification & CVA

2H Offshore performs independent third-party verification of offshore structures including risers, flowlines and fixed and floating offshore wind systems for operators and developers around the world.

Our extensive experience in design, fabrication, and installation enables us to conduct verification activities for all types of offshore systems such as SCRs, TTRs, hybrid risers, flexible risers, fixed wind piles, floating wind mooring lines and power cables, minimum facility platforms, and subsea flowlines. We are also one of the only companies to conduct CVA activities for gas lift umbilicals.

We have performed independent third-party verification of offshore structures across the globe including the US, Guyana, offshore Africa and Asia. For systems in US waters, this is carried out as a certified verification agent (CVA). Independent verification is a requirement of the Bureau of Safety and Environmental Enforcement (BSEE) for certain offshore structures. Under 30 CFR 250.910(B)(1)(i) and (2)(i), pipelines connected to floating platforms are subject to the platform verification program as associated structures. Similarly, renewable energy and alternate uses of existing facilities in the outer continental shelf are also subject to CVA requirements per 30 CFR 585.

Key Services

  • Review and validation of design and installation documentation and procedures
  • Certified verification agent (CVA) – design, fabrication, and installation
  • Monitoring of fabrication and installation
  • Review and validation of existing designs and installed systems
  • GoM riser life extension CVA
  • US fixed and floating systems CVA

Project Experience

  • NNG Wind Farm – Casing Grouting Verification
  • Noble Energy – Big Bend-Dantzler SCR and Gas Lift Umbilical Design, Fabrication and Installation CVA
  • Tullow Oil – Jubilee Flexible Risers Procurement Management
  • Hess/Williams – Tubular Bells Design, Fabrication and Installation CVA
  • Hess/Enbridge – Stampede Design, Fabrication and Installation CVA
  • Noble Energy – Gunflint SCR Design, Fabrication and Installation CVA
  • Chevron – Jack St. Malo Production and Export SCR Design, Fabrication and Installation CVA
  • ATP – Mirage MinDoc TTR Design CVA
  • BP – Horn Mountain Spar TTR Design Verification
  • Petrobras America Inc. – Cascade Chinook Chain Link Fatigue Life Independent Analysis Confirming Design
  • BP – Dorado and Galapagos Production SCR Design CVA
  • Chevron – Tahiti Development Production and Export SCRs CVA
  • ExxonMobil – Erha Production SCRs Design Verification
  • Statoil – Peregrino Weight Aided Wave (WAW) Risers Re-Analysis Study
  • ATP Oil & Gas – Gomez and Telemark Oil Flexible Catenary Riser Design, Fabrication and Installation CVA
  • Talow ERT – Phoenix Flexible Lazy Wave Risers Design, Fabrication and Installation CVA
  • Afren Okoro – Composite Flexible Riser As-Installed Verification