Decommissioning

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PDi add value to their client’s decommissioning projects through meticulous planning and preparation across documentation, engineering and execution.

Having completed their first decommissioning FEED study in 2009, PDi has an impressive track record covering multiple activities ranging from initial study and analysis, detailed programme development, management of regulatory requirements, project engineering, offshore execution and waste management.

With proven methodologies and demonstrable experience throughout the decommissioning process, PDi are proud to have contributed to their clients achieving substantial reductions in their decommissioning liabilities.

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Decom Capability – Detail

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Late Life

  • Option evaluation
  • ‘Lighthouse Mode’ development
  • Cost / economic modelling
  • Engineering supporting studies
  • Safety case update
  • Development of decom strategy
  • Material Inventory


Regulatory

  • Stakeholder Engagement
  • COP Assistance
  • PLANC Definition & Management
  • PWA/DEP CON
  • Active Waste Management Plan
  • Safety Case Review
  • Decom Programme Development


Decom Programme

  • Material Inventory
  • Option Screening
  • Cost & Schedule
  • Risk Review
  • EIA
  • Degradation & Conditioning Supplies
  • Ongoing Liability
  • Comparative Assessment
  • Decom Programme Submission


Engineering

  • Methodology Development
  • Removal Option Selection
  • Equipment Review and Selection
  • Procedure Development
  • SOW/ITT Prep
  • Bid Evaluation
  • Management of Installation Contractor
  • Installation Contractor Support


Offshore Execution

  • Management of Contractors
  • Contractor Support
  • HSSE Management
  • Vessel & dive audits
  • SOW/ITT Prep
  • Planning & logistics
  • Flushing & Cleaning
  • Riser disconnection & recovery
  • Mooring disconnection & recovery
  • Subsea facilities recovery
  • Seabed rectification


Waste Management

  • SOW/ITT Prep
  • Bid Evaluation
  • Management of Waste Contractor
  • Waste Disposal Certificate

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