Installation and construction support of subsea installations

Time, cost and performance efficiencies - all critical to the success of any project, not least those in the harsh and challenging offshore environment.

Safe and successful offshore construction operations rely on precise, assured and reliable data concerning surface and subsurface locations and status.  

N-Sea has decades of experience in providing comprehensive offshore field development, construction support and pipeline survey services.  With our bespoke survey, measurement and intervention services, our expertise supports the installation, inspection, repair and maintenance of your offshore structures, pipelines and production facilities. 

Our work covers the spectrum of survey support services - talk to us about your project and find out how we can help you deliver. 

Our construction survey support services include: 

  • Pipelay positioning and touchdown monitoring 
  • Construction barge and support vessel positioning 
  • Anchor handling support 
  • Structure installation guidance 
  • Acoustic underwater positioning 
  • ROV survey sensors and system integrations 
  • ROV inertial navigation 
  • Jumper and Spool piece metrology 
  • Dedicated ROV support vessels 
  • Project management 


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