Inspection, repair and maintenance


Deepwater inspection, repair and maintenance (IRM) of offshore oil and gas platforms is a necessary requirement throughout the industry.

Helix can provide you with up-front comprehensive support from our experienced and knowledgeable in-house subsea engineering teams. 

Whether you need flowline insulation or flow assurance remediation packages, subsea tree maintenance, pipeline inspections or hydraulic well stimulation, we have the right equipment and decades of experience to handle your work.

With decades of experience providing support to offshore operators worldwide, Helix provides expertise in the following areas:

  • Integrated life-of-field support
  • Metrology
  • Production Jumpers Installation
  • Production Jumper Recovery
  • Hydraulic stimulation
  • Cable burial
  • Installing subsea trees
  • Subsea tree maintenance
  • Subsea tree repair
  • Subsea tree recovery
  • Tree change out
  • Umbilical lay replacement
  • Integrity inspection
  • Section removal
  • Small flowline & umbilical lay
  • SCM change out
  • Hydrate remediation (pipeline & well)
  • Subsurface safety valve systems
  • Saturation Diving

Saturation Diving

Since 1987, we’ve combined our saturation diving experience with our industry leading well intervention capabilities. With our saturation diving capabilities, you will have the experience on hand to deal with the trickiest subsea hardware. 

Our well intervention monohull vessels Seawell and Well Enhancer are equipped with integrated 18-man saturation systems, rated to 300 MSW. 

Between them, through 2013-2020 alone, we achieved 3,040 bell runs, over 2,917 days, totaling over 655,000 man-hours in saturation.

Where to next?

Reservoir management

Optimize production recovery and maximize value throughout the life cycle of an oilfield. 

Life of field services

Critical life-of-field services for offshore projects across the world.

Offshore renewables

Helix is committed to supporting the responsible transition from a carbon-based economy.