Decommissioning Roadmap

Decommissioning Roadmap Building Blocks:

This tool has been created to help construct decommissioning roadmaps. The aim is to clearly display the regulatory stakeholder engagement requirements throughout a decommissioning project’s lifecycle. In combination with real life examples, a project specific roadmap can be built with the knowledge that not only has the regulatory regime been taken into account, it has been based on achievable timelines.

This roadmap is currently a draft work in progress. The final version will be interactive with each statement carrying a clear definition with a link to a resource, where required. We hope the completed tool will become a useful hub when looking for information regarding the regulatory requirements of decommissioning.

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Activity / Regulator
Engage
Study
Consult
Submit
Execute
Monitor
OGA
(Operations Directorate)
E&P team
(Operations Directorate)
  • Licence/ FDP commitments
  • Asset Stewardship (EAS)
  • Pre CoP well P&A ( WONS)
  • Conceptual Decomm Options
  • Technology options
  • MER - Maximise HC Recovery
  • Late Life Alt Operating Modes
  • Campaign activity
  • Pre CoP well P&A readiness
  • Technology readiness
  • Draft CoP document
  • Late Life Alt Operating Modes
  • CoP economics
  • Data Archive plans
  • Final CoP document
  • Final CoP economics
  • Data Archive plans
  • OSDR notification
  • CoP agreement
  • Stakeholder engagement
  • Data Archive plans
  • Licence / Consent change
  • Technology Deployment
  • Licence/ Consent Closeout
  • Data archive completion
  • Re-licence options
  • Closeout & Lessons learnt
  • OSDR compliance
Decom team
(Operations Directorate)
  • Concept Decomm Options
  • Delivery Strategy (CCFU)
  • Well P&A Optimisation
  • Basis of Estimate
  • Industry Engagement
  • Cost Estimate and Report
  • Draft Decomm Prog discussion
  • Pre CoP well P&A readiness
  • Supply Chain Delivery
  • Best Practice/ & Re-Use Options
  • Cost estimate benchmark
  • Draft Decomm Prog review
  • CoP document review
  • Well P&A assurance
  • Supply Chain Collaboration
  • Cost estimate notification
  • Decomm Prog consultee comment
  • Well P&A policies/proposals
  • Project execution model(s)
  • Supply Chain plans
  • Decomm Prog cost control
  • Well P&A plan
  • Supply Chain management
  • Lessons Learnt delivery
  • Industry engagement
  • Decomm Prog cost control
  • Decomm strategy delivery
  • Well P&A plan closeout
  • Industry/ Supply Chain engagement
  • Closeout & Lessons Learnt
BEIS
(ODU, EMT , OEI)
BEIS
(EMT & OEI)
  • SEA / HRA review / input
  • Baseline Env. Studies & Surveys
  • Marine License / Chemical Permits
  • Inspection & Monitoring basis
  • Competent Authority / OSDR
  • Env. Impact Assessment
  • Env. Studies & Surveys
  • Marine / Chemical assessments
  • Comparative Assessment/BAT/BEP
  • OEI Inspection criteria definition
  • EIA (ES)
  • Comparative Assessment
  • Draft Decomm Prog review
  • Licence / Permit / Consent proposals
  • Inspection / Monitoring proposals
  • EIA (ES) & supporting evidence
  • Decomm Prog consultee comments
  • Consent/ Permit application
  • Inspection / Monitoring proposals
  • OSDR notification
  • EIA (ES) agreement
  • Consents, Permits issue
  • Lessons Learnt delivery
  • Inspection / Monitoring plans
  • EIA, ES compliance
  • Decomm Prog delivery / change
  • Lessons learnt/ Regulatory guidance
  • Industry/ engagement
  • OSDR compliance
BEIS
(OPRED)
  • Decomm Prog Management (Ph 1)
  • Policy & Strategy discussions
  • Conceptual Decomm Options
  • Initial assessment ( eg OSPAR)
  • Cross- regulator engagement
  • Decomm Prog management ( Ph 2)
  • Draft Decomm Prog review
  • Deviation evidence (OSPAR etc)
  • Comparative Assessment criteria
  • Stakeholder engagement
  • Decomm Prog management (Ph 3)
  • Decomm Prog issue
  • Comparative Assessment issue
  • Decomm funding
  • Stakeholder consultation
  • Decomm Prog management (Ph 3)
  • Decomm Prog approval
  • Decomm cost estimate
  • Financial commitment
  • Legacy & liability mitigation
  • Decomm Prog management ( Ph 4)
  • Decomm Prog approval
  • Decomm Prog Fees
  • Stakeholder feedback
  • OSDR notification
  • Decomm Prog Management (Ph 5)
  • Closeout & post Prog monitoring
  • Legacy & liability mitigation
  • X-Regulator & Stakeholder feedback
  • Closeout & Lessons Learnt
HSE
  • Proposed decom plans
  • Phased approach strategy
  • Consideration of technical topics
  • Management of safety case
  • Applicable regulations
  • Applicable guidance
  • APOSC and GASCET
  • SC Topic Assessment Templates
  • SC Material Changes
  • Workforce, ICP & Well Examiner
  • Other installation operators
  • Parties involved in decom activities
  • Material Changes
  • Dismantlement revision
  • Well notifications
  • Combined operations notifications
  • Comply with accepted safety case
  • Comply with submitted notifications
  • Compliance against accepted safety case
  • Deviations
  • Safety culture \ understanding of:
  • - Hazards and risks
  • - Barriers
  • - Behaviours & practices
WASTE REGULATOR
(SEPA, EA & associated waste authorities)
  • Decomm Waste Policy & Strategy
  • Waste Framework Directive review
  • Active Waste Management Plan
  • Waste authority engagement
  • Inventory surveys / evidence base
  • Reuse/ Recycle/ Recovery options
  • Disposal route(s)
  • Waste Pathway risk assessment
  • Waste Stakeholder engagement
  • Waste management plan
  • Comparative Assessment
  • Draft Decomm Prog review
  • Inspection / Monitoring proposals
  • Waste authority ( UK/TFW/ overseas)
  • Active waste management plans
  • Waste inventories
  • Agreed waste locations
  • Inspection / Monitoring proposals
  • Decomm Prog consultee comments
  • Active waste management plans
  • Inspection / Monitoring proposals
  • Legacy & liability mitigation
  • Active waste management plans
  • Duty of Care
  • Inspection / Enforcement
  • Closeout & Lessons learnt
Other Regulators
  • Policy & Strategy discussions
  • Late life/ Decomm option assessment
  • Cross-regulator engagement
  • Regulation change control
  • Surveys & Studies
  • Impact assessments
  • Legacy & liability mitigation
  • Draft Decomm Prog review
  • Stakeholder consultation
  • Impact assessment mitigation
  • Industry collaboration
  • Decomm Prog stakeholder comment
  • Regulatory MoC plans
  • Inspection / Monitoring proposals
  • Legacy & liability mitigation
  • MoC plans
  • Licence, Consents, Permits issue
  • Inspection / Monitoring proposals
  • Legacy & liability mitigation
  • Decomm Prog & MoC plans
  • Regulation compliance
  • Closeout & Lessons learnt
Activity / Regulator
OGA
(Operations Directorate)
E&P team
(Operations Directorate)
Decom team
(Operations Directorate)
BEIS
(ODU, EMT , OEI)
BEIS
(EMT & OEI)
BEIS
(OPRED)
HSE
WASTE REGULATOR
(SEPA, EA & associated waste authorities)
Other Regulators

Abbrev: Decom ( Decommissioning) ; EAS ( Enhanced Asset Stewardship) ; FDP (Field Development Plan) ; CoP ( Cessation of production) ; Env ( Environmental ) CCFU ( Cost, Collaboration & Future Use) ; Alt ( Alternative) ; HSE ( Health & Safety Executive) ; SoS ( Secretary of State) ; OGA ( Oil & Gas Authority); OSPAR (Oslo/Paris convention (for the Protection of the Marine Environment of the North-East Atlantic) ; OSDR (Offshore Safety Directive Regs) ; EMT ( Environmental Management Team) EIA ( Environmental Impact Assessment) ; ES (Environmental Statement) ; ODU ( Offshore Decommissioning Unit) ; Prog ( programme) ; P&A ( Plug & Abandon ); OOM (Order of Magnitude) ; Prog ( programme) ; SC ( Safety Case) ; WONS ( Well Operations Notification System) ; MER ( Maximise Economic Recovery) ; MoC ( Management of Change); DPN (Disused Pipeline Notification)

Download the roadmap in PDF format


Roadmap Example from Industry:

Available for download are real life examples of roadmaps detailing indicative timings of major milestones throughout projects and giving context to the Roadmap Building Blocks. These examples have been made accessible by the operator community to help aid understanding and planning of a multitude of types of decommissioning projects. These are not definitive by any means but the OGA aim, with the cooperation of operators, is to promote identification of good practice by building a library of examples that can be used as a resource.

Derogation Case Example in PDF format