Decommissioning & P&A of 8 offshore Wells

We executed a full Plug & Abandonment (P&A) and decommissioning campaign covering 8 offshore wells—comprising 3 oil producers, 3 gas producers, and 2 injection wells—located in shallow water depths of 48–61 m with well depths of 2,260–2,445 m

Scope of Work

Our integrated offshore solution included:

• Installation of mechanical and cement barriers

• Placement of intermediate and environmental cement plugs

• Retrieval of horizontal/vertical trees and upper completion tubing

• Wellhead cutting and recovery from seabed

• Transport of all recovered equipment to shore

• Full engineering, project management, offshore spread, vendors, cutting tools, and logistics support

Execution Phases

Phase I – Diving Survey
Performed a seabed and infrastructure survey to eliminate diving requirements during the P&A execution phase

Phase II – Plug & Abandonment
Plugging, severing, and disposal of Xmas trees and wellheads, utilizing BOP, wireline/E-line, cementing, cutting, positioning, and tree tooling services

Duration

6 months + extension, influenced by weather delays, vendor timing, unknown well integrity conditions, and leaking gas-lift mandrels that required additional diagnostics and interventions

Critical Project Considerations

• Well integrity uncertainties

• Seabed and soil conditions

• Existing field infrastructure

• Regulatory compliance

• Environmental protection and marine impact mitigation