offshore construction support


The challenges of the subsea – topside interface is where OMSi excel. With an extensive understanding of foundation and platform cable entry systems, OMSi is well placed to provide support throughout the construction phase of projects. Our hands-on experience and unique insight allows us to offer a diverse range of support to meet the needs of your project.

Our construction support includes but is not limited to:

Site Preparation

  • Route engineering
  • Pre-Lay Grapnel Run (PLGR)
  • Route Clearance (RC)
  • Boulder & debris clearance
  • Platform preparation services
  • Shore end inspections

Cable Installation

  • Cable & accessories supply
  • Cable & accessories delivery
  • Cable shore end landing
  • Tower & OSS pull-ins
    • Cable stripping & routing
    • Hang off installation
  • Termination & testing
  • Commissioning

Cable Protection & Burial​​

  • Plough Burial​
  • Jetting Burial​​
  • Mass Flow Excavation (MFE)
  • Mattress Installation​
  • Rock filter & grout bag installation​
  • Specialist cable protection​​​
  • Articulated pipe installation​
  • Cable crossing construction​

Foundation Support​

  • Piling
  • Rock placement​
  • Grouting
  • Noise mitigation – Bubble curtains

Subsea Intervention​​​

  • Management of integrated ROV & diving solutions​​