Decommissioning

Decommissioning Services for the Global Offshore Energy Industry
With 60 years’ experience in the energy sector, we have supported offshore projects at the beginning, middle and end of their lives.

Permanent Isolations
Whether for subsea pipelines, tanks or other systems on assets, FoundOcean offers a range of grout-based options to provide a permanent seal.
Live systems need to be fully clean of oil and sealed.
Obsolete systems need to be plugged to meet regulatory requirements.
PROJECT ENGINEER – TAQA

Pipeline Cleaning & Displacement
A key aspect of many projects is displacement, not leaving any oil behind, helping to mitigate:
- environmental concerns
- pollution risk
- economic impact
We typically use customisable low-density fluids but can draw upon a wide range of chemicals to provide temporary flushing or permanent displacement of oil-filled pipelines.
Case study: Cormorant Alpha – Run Down Line Isolation Project
In 2022, FoundOcean was partner of choice for the permanent isolation of the platform’s run down line system.
We adopted a brand new approach – mixing a proprietary low-density silicon-based elastomer to pump into the rundown lines, displacing the oil into storage cells before the material set.
This innovative new material enabled permanent isolation. It was so successful it removed the requirement for follow-up work:
- improving efficiency
- offering significant cost-savings
- enabling enhanced oil recovery

Topside Removal
Different reinforcements for different projects.
Member Infill / StrengtheningAllowing either asset life extension through reinforcement, or structural reinforcement of jacket members for topside removal.
Lift Point Installation
Installing custom-fit lift point reinforcement for both “top down” crane or “bottom up” vessel lifts to meet the required strengths for safe removal of structures.
Leg Capping
By installing custom formworks and filling concrete gravity base legs, we can provide permanent isolation, preventing pollution and minimising the impact of the decommissioned structure on the surrounding marine ecosystem.
Case study: Brent Bravo Topside Removal
Click here to view ‘There We Go’ video.
Trusted. Proven. Reliable. Adaptable.
Trusted: We continue to be the preferred global grouting partner for offshore energy construction, and the provider of life extension solutions and decommissioning for offshore assets.
Proven: Since 1966, we have safely and successfully delivered more grouted connections around the world than any other offshore grouting contractor.
Reliable: Working with strategic partners, you can be sure that your project is in safe hands with our unmatched engineering resource and attention to detail.
Adaptable: Always adopting a flexible and positive approach, we pride ourselves on being able to work smartly and react swiftly in a changeable environment.
Health, Safety & Quality Assurance
Safe: We fully understand the importance of working safely, without harm to the environment and with excellent project and contingency planning.
Health and Safety: We are committed to maintaining a conscious culture towards health, safety and the environment. We apply this to all our activities, both onshore and offshore, to prevent harm to people and the environment where they work.
Quality Assurance: We are DNV-accredited to ISO 9001, ISO 14001 and ISO 45001.