Integrating CCUS with Energy Transition by Reusing Oil & Gas Infrastructure

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This course evaluates the suitability of abandoned offshore oil/gas networks & depleted reservoirs for transport and storage of CO2 or H2.

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Although the world’s governments have tentatively agreed to attain net zero greenhouse gas (GHG) emissions by 2050, it will take time to switch from fossil fuels to renewable alternatives. Therefore energy transition strategies are evolving to use existing and emerging low or zero carbon technologies to achieve decarbonisation goals. Carbon capture, transport, utilisation and storage (CCUS) are the cornerstones of GHG reduction, so integrating CCUS with repurposed existing petroleum infrastructure may lower costs of change and delay decommissioning spend during energy transition. Hydrogen (H2) could play a major role in delivering a net zero future, but there are significant challenges in using petroleum sector pipelines, infrastructure, and fields for H2 operations.

This course provides a framework to evaluate the suitability of soon-to-be abandoned offshore oil and gas networks and depleted reservoirs for the transport and storage of CO2 or H2.

The pros and cons of utilising CO2 for enhanced oil recovery (EOR) are debated. The potential risks to be mitigated vs. the potential cost savings available from enacting a repurposing strategy are assessed, and the various proposed CCS business models are compared. Finally, the need for an appropriate, coherent and consistent reporting system for CO2 transport, utilisation and storage is discussed.

COURSE STRUCTURE: 9 modules of 1½ hours each, delivered over 3 days

Each day will consist of 3 modules, split into units of 1½ hours, followed by a 20 min break.

Course Level: Skill

Instructor: Bob Harrison

		Integrating CCUS with Energy Transition by Reusing Oil & Gas Infrastructure image


  • An energy policy maker
  • An energy stakeholder in charge of investment and funding decisions
  • An oil & gas professional transitioning towards sustainable energy operations


Clearly explaining theoretical concepts which are complemented by worked examples and video clips.

		Integrating CCUS with Energy Transition by Reusing Oil & Gas Infrastructure image


By the end of the course you will feel confident in your understanding of:

  • Refresher on why CCUS is needed
  • How the properties of CO2 and H2 differ from those of oil and gas
  • How to address the challenges of CO2 storage site selection and life cycle operation
  • Criteria for screening which oil & gas infrastructure can be re-used
  • Screening assets and infrastructure for utilisation of CO2 for EOR
  • How integrating CCUS with repurposed oil & gas infrastructure could help energy transition
  • Where H2 fits into the repurposed infrastructure/CCUS/energy transition mix
  • Key risks in CCUS and energy transition projects and corresponding mitigation strategies
  • What potential cost savings could result from following such an energy transition strategy
  • The need for CCUS reporting requirements and what systems are currently available


  • Why capture, transport, utilise and store CO2?
  • Fundamentals of CO2 properties and behavior
  • How to select, operate, decommission and monitor a CO2 Storage Site
  • Using CO2 for EOR
  • CCUS risks and mitigation
  • Proposed business models for CCS
  • Integration with energy transition (Green H2 from electrolysis vs. Blue H2 from steam methane reformation (SMR); CCS complements H2 generation via SMR; Storing H2 in depleted oil & gas fields; Challenge of reusing oil & gas pipelines to transport H2; Potential cost savings by delaying abandonment expenditure via repurposing of infrastructure)
  • Resource reporting systems for CO2 transport, utilisation and storage
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