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General enquiries
Tel. +45 7916 6666


Semco Maritime
Esbjerg Brygge 30
DK- 6700 Esbjerg




Oil & Gas

Installation and commissioning

Supporting you all the way!

Minimising downtime during

Installation in Ex areas

Keeping a platform operating in a harsh environment like the North Sea can be a constant battle. Corroded structural elements and piping need replacing at every five-year inspection. And advances in control systems mean that rigs need frequent upgrades and modifications to keep your people safe and your business one step ahead.

For us, running a fast installation project that will keep your platform in operation 24/7 is simply what we do best. Typical installation jobs can include the following:

  • Structural
  • Mechanical
  • Process
  • Pipe fitting
  • Hydraulic and pneumatic
  • Instrumentation
  • Electrical
  • Electronic
  • Telecommunication
  • Turnkey (total) solution
  • SubSea fibre network
A crucial phase:


In the commissioning phase we assure that all systems and components are designed, installed, tested, operated and maintained according to your requirements.

The commissioning phase is often challenging, because of issues with interfaces that could not be tested during FAT. Hence it is of key importance to us, that our commissioning teams have a mixed set of skills.

We supply the offshore manpower resources needed for your project - such as:

  • Superintendents
  • Supervisors

  • QC inspectors

  • NDT operators

  • Electricians

  • Scaffolders

  • Riggers

  • Painters

  • Blacksmiths/fabricators/fitters

  • Welders

Rig upgrades and modification

Total A-Z class renewal and compliance from initial survey, conceptual design, engineering, planning, full-scope execution and installation as well as complete commissioning.

Scaffolding and rigging

For installation and maintenance support we offer teams with experience in erecting scaffolds onshore and offshore for all applications within the oil & gas, marine and industrial markets.

Ballast Water Treatment

In the coming years, mobile drilling units, shipping operations and marine fleets, will be challenged to comply with the new BWM convention by the International Maritime Organization (IMO).

Case: Walk-to-Work Campaign

Tyra Future Redevelopment Project - handling the primary scope of work including the preparation of all unmanned satellites for idle mode and installation of equipment and systems.

Well-qualified, experienced staff

Manpower support to your operations

Semco Maritime’s Operation support department is dedicated to supporting your operations with well-qualified, experienced staff who can take care of everything from the maintenance and repair of your platform’s structure and control systems to the provision of medical care for your people.

Everyone in our Operation support department has passed comprehensive safety courses, and has first-hand experience working in the oil and gas industry. In short, you can focus on oil and gas production, while we keep your assets in good shape.


EIT Hook-up and Commissioning

Semco Maritime is participating in the EIT hook-up and commissioning (HUC) onshore preparation and offshore HUC execution of the new UK gas field. 

Competences and systems
  • Onshore preparation
  • Technical query resolution
  • Change management
  • Preparation of hook-up commissioning procedure
  • Interactive planning
  • EIT supervision
  • EIT manpower
  • Equipment and tool support

Offshore work carried out from the Aberdeen base, involving approx. 200 employees from Semco Maritime for 8-9 months.