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Tel. +45 7916 6666


Semco Maritime
Esbjerg Brygge 30
DK- 6700 Esbjerg

Paving the way for a sustainable future



Safely dismantling the old

Decommissioning refers to the process of safely shutting down and dismantling facilities, equipment or infrastructure that are no longer needed or in use. At Semco Maritime, we have built an enviable track record in decommissioning, solving challenges for our clients when they needed us the most. 

Since 2008 Semco Maritime has provided decommissioning solutions to the Oil and Gas industry across the globe. Our team of in-house decommissioning specialists offer topside services from the early stages of Engineering and lifting preparation, through to level 3 mapping and final stage decontamination and waste handling.

With the option to bundle services from Semco Maritime’s conventional solutions and partners, we enable our customers to reduce the number of contract integrations across the EPRD lifecycle. Integrating directly with Assets Owners, Operators, Heavy Lift Vessel Owners and Ports, Semco Maritime is well positioned to undertake projects large or small.

Our expertise, experience and internal decommissioning capabilities ensure that although scopes may be greatly different, each one follows a stringent process to ensure customers are provided a consistently high standard for their bespoke requirements. 

Each and every project undertaken by our team of experts has the primary aim of mitigating environmental impact, whilst ensuring that we safely and efficiently execute our operations on these assets.


The 5 pillars of our service offering

Pre & Post CoP:

  • Late-life asset management
  • Deck crew and operations teams (E&I, Mech, Process)
  • Integrity assurance and maintenance

Project Management:

  • Engineering support to Operators during planning and execution
  • Programme preparation incl. job packs, permits, etc.
  • IHM Report
  • Manning plans
  • Semco Decom360 software for P&ID digital overlay.

Topside preparation:

  • Module, process, and utilities separation 
  • Pad eyes and lifting preparation 
  • Reinforcements 
  • Blinding & make-safe 

Recycling preparation:

  • Drain all fluids 
  • Decontamination of pressure vessels, tanks, pipeline, and utilities 
  • NORM and mercury handling 
  • On  & Offshore operations 

Facilities | Pipeline:

  • Process and utilities drain and flush 
  • Physical isolation
  • De-energize, vent, drain, and purge
  • Level 3 Mapping for HazMat (NORM, mercury, hydrocarbons)
  • Semco Decom360 Software for P&ID digital overlay
Changing the world of energy

Making way for a more sustainable future

"Our commitment in Semco Maritime is to ensure a responsible, safe and transparent exit strategy for generations to come. Dismantling the old is also paving the way for a sustainable future, and there is only one way to do it. The right way."

Contact us

Ross Gatt

Sales & Marketing Manager

rossg blue 2

Semco Maritime Ltd.
37 Abercrombie Court, Prospect Road,
Westhill, Aberdeenshire, AB32 6FE
United Kingdom

Tonny Constantin Popescu

Senior Director, Transitional Energies

Semco Maritime A/S
Esbjerg Brygge 30
6700 Esbjerg