Late-Life Wells, P&A & Decommissioning Execution Readiness
Integrated support across well integrity, P&A, and decommissioning — ensuring execution readiness offshore.
Intervention Performance supports operators during late-life asset management, well abandonment, and decommissioning — defining clear, executable pathways that control cost while maintaining safety and regulatory compliance.
We bridge the gap between current operations, late-life well integrity, and full asset decommissioning requirements.
Our focus is practical readiness, not theoretical end-states.
Late-life readiness is addressed holistically, covering well integrity, intervention access, and the offshore execution environment required to safely transition assets toward decommissioning. This includes identifying risks early — before execution pathways are selected — ensuring both wells and supporting infrastructure are technically ready for intervention, abandonment, and removal activities.
Where readiness criteria are not met, escalation to alternative execution methods or preparatory scopes is explicitly recommended.
All recommendations, including escalation points, are provided within the client’s technical authority and governance framework; final decisions always remain with the operator’s TA and governance processes.
Our Late-Life, P&A & Decommissioning Support
Wells & Subsurface
- Well integrity assessment and barrier strategy
- Late-life intervention planning and sequencing
- Scope definition for future abandonment programs
- Execution readiness for phased or campaign-based P&A
Facilities & Offshore Execution Readiness
- Make-safe construction and pre-decommissioning preparation
- Wellhead maintenance and access preparation for intervention or removal
- Temporary location setup to enable safe offshore execution
- Crane installation and removal planning to support decommissioning scopes
Process & Pipeline Systems
- Flushing, cleaning, and isolation of process equipment
- Pipeline cleaning, displacement, and abandonment preparation
- Interface planning between wells, process systems, and removal scopes
Subsea & Marine Scopes
- Diving operations including tube turn removal and subsea disconnection
- Pipeline abandonment support and subsea infrastructure preparation
- Integration with marine, construction, and heavy lift activities
Typical Engagements
- Mature offshore assets approaching late-life and decommissioning
- Integrated P&A and facilities decommissioning campaigns
- Subsea wells with uncertain abandonment and removal pathways
- Assets requiring integrity improvement and execution preparation prior to removal
Why Early P&A Readiness Matters
- Reduces total decommissioning cost exposure — not just wells
- Improves execution alignment between wells, facilities, and marine scopes
- Prevents reactive, high-cost offshore rework
- Supports regulatory, partner, and cross-discipline alignment
Why Intervention Performance
- Deep well intervention, integrity, and P&A experience
- Practical understanding of offshore construction and decommissioning interfaces
- Execution-focused guidance across wells, facilities, and subsea scopes
- Independent, operator-aligned support