Decommissioning
150+
Wells Abandoned
17
Vessel-based
6
Jackup
20
Semi-submersible
45
Platform
EXCEED delivers innovative decommissioning solutions that redefine industry standards...
Our integrated approach allows us to address even the most complex surface and subsea challenges with precision, efficiency, and innovation.
Our team doesn’t just solve problems; we anticipate them, bringing 300+ years of detailed knowledge and understanding to each well abandonment campaign, providing the specialist services which will control costs and time spend on decommissioning operations on:
- Slickline Mast
- LWIV
- Heavy Workover Unit
- Platform rig package
- Jack-up
- Semi-Sub
As an independent solutions provider, EXCEED has worked with some of the North Sea‘s pioneering operators in the decom space, including the abandonment of the 45 wells of Fairfield Energy’s Dunlin platform.
We’ve answered some of the biggest decom challenges through the design and build of innovative solutions – including a world first response to the complex issues around the integrity of ageing subsea wellheads.
We work closely and collaboratively with service companies, to develop the tools and methods which will gain the greatest efficiencies.
Where appropriate, EXCEED has the knowledge and confidence to challenge a regulation and adopt a ALARP approach. Our operator clients’ trust in our ability to challenge regulations whilst remaining complaint also plays a critical role, as they agree to become early adopters of our innovative approaches to decommissioning.
Our mission is to provide innovative, safer, more agile and lower cost access to your wells and in particular subsea LW SIL equipment for ageing low strength wellhead systems.
Decommissioning services
An Integrated Approach
- Our seamless, unified decommissioning unit comprises a team of highly skilled and experienced professionals from multiple disciplines – subsurface, decommissioning, well services, subsea, contracts and well engineering.
- Our integrated approach allows us to address even the most complex surface and subsea challenges with precision, efficiency, and innovation.
Answering the Challenges
- Our team doesn't just solve problems; we anticipate them to ensure every project is executed to the highest safety and operational standards.
- We thrive on tackling the unique challenges inherent in offshore decommissioning. With a "can-do" attitude and a commitment to thinking outside the box, we collaborate closely with clients and the supply chain partners to design and implement complex, bespoke subsea solutions.
- Whether addressing intricate well abandonment scenarios or overcoming subsea engineering hurdles, EXCEED continually delivers results.
Reservoir and Fluid Properties
- Overview of reservoir formations (if applicable)
- Characteristics of hydrocarbons or other fluids, including pressures, temperatures, and composition
Geomechanical Analysis
- Long-term stability of plugged zones under changing pressure or stress conditions
Risk Assessment & Mitigation
- Geological risks, such as gas migration, fault reactivation, or subsurface instability
Conclusions & Recommendations
- Geological implications for decommissioning design
- Summary of geological risks and strategies for mitigation
Execution Experience
- Experienced in offshore P&A with full range of units:
- Construction vessel
- LWIV
- Semi-submersible
- Jack-up
- Slick-line mast
- Platform rig
- Modular P&A unit
Full Well P&A Project
- Management
- Full design, execution and close-out
- Unit tendering and selection
- Stake holder engagement with Partners, OGA, UK HSE etc
Subsurface
- Geological context and site characterisation
- Regional geology
- Site-specific geology
- Geohazards
Safety
- Safety lies at the heart of everything we do.
- With over 150 years of oilfield engineering experience across our core Decommissioning team, our culture is one of meticulous attention to detail, proactive risk management and unwavering commitment to protecting people, assets, and the environment.
- Our mission is to provide innovative, safer, more agile and lower cost access to your wells and in particular LW SIL equipment for ageing subsea low strength wellhead systems
Hydrogeology
- Groundwater systems
- Hydraulic connectivity
- Contamination risks
Subsurface Integrity Assessment
- Formation stability
- Seal integrity
- Cement and casing interface
Geological Barriers for Well Abandonment
- Identification and evaluation of naturally occurring geological barriers for containment
- Environmental considerations
Monitoring & Verification Plan
- Pre- and post-decommissioning geological monitoring protocols
- Use of geophysical surveys, well logs, or pressure tests for verification
Study Work
- Well categorisation
- Well P&A design
- Time and cost estimation
- Due diligence
- Asset transfer liability review
- New technology identification and application
- Project unit recommendation (LWIV, HWU, rig, etc.)
- Specialist equipment (tree, wellhead etc interface) identification
PEER Review
- Time and costs review
- Programme review
- AWOP attendance
Project Collaboration
- Collaborative approach with rig, LWIV and tier 1 providers
- Flexible contracting strategies