Energy Transition

Energy Transition | Carbon Capture, Storage and Utilisation

Reservoir Modelling for Storage

Course Code: N548
Instructors:  Eric MacKayTim Wynn
Course Outline:  Download
Format and Duration:
3 days
5 sessions


Modelling the ‘storage complex’ requires us to build models that encompass not just the target reservoir for drilling, but also the surrounding rock volumes, including the lateral volumes where the injected fluid plume is expected to migrate to. This draws on a need to capture the geomechanics of these rock volumes, and also to model on a scale that can support seismic monitoring of the moving plume – a larger scale than we would normally model for production alone. However, the supercritical fluids involved are particularly sensitive to reservoir heterogeneity. Rather than hindering our objective, as in the case of production, heterogeneity can be an advantage for storage either through the creation of compartments or through direct capillary trapping – a smaller scale than we might normally model for production. This course will summarise the unique issues when modelling for storage. Participants will learn to consider fluid properties, heterogeneity, geomechanics, seismic monitoring, and scale when carrying out reservoir modelling for storage.

Business Impact: We will never cease to be interested in fluid flow in the subsurface. The same reservoir and simulation technologies that have been developed in the pursuit of producing oil and gas resources will continue to be required in the future, not only for a declining production of hydrocarbons, but for disposal of CO2 and the storage of energy itself. Although sharing common areas, the models we build for storage will nevertheless differ in a number of ways compared to those we use for production

Duration and Training Method

This is a classroom or virtual classroom course comprising a mixture of lectures, discussion, case studies, and practical exercises.

Course Overview

Participants will learn to:

  1. Understand the distinction between modelling for storage vs. production.
  2. Describe the data required to build a useful storage model.
  3. Explain the impact of heterogeneity on model design.
  4. Describe how to go about designing a modelling study for storage, encompassing the use of multiple packages, applied at multiple scales.
  5. Assess the uncertainties associated with modelling for storage.

The following topics will be covered:

  • Summary of issues – storage vs. production
  • Fluid properties – CO2 physics and chemistry to capture
  • Essential heterogeneity
  • The storage complex
  • Data requirements for geomechanics
  • Geomechanical modelling techniques
  • ‘Coupled’ modelling
  • Forward-modelling for seismic monitoring
  • Multi-scale modelling
  • Synopsis – Reservoir Model Design

Anyone involved in the modelling and monitoring of the subsurface for storage; geophysicists, geologists, petrophysicists, reservoir engineers.


Eric MacKay

Professor Eric Mackay holds the Energi Simulation Chair in CCUS and Reactive Flow Simulation in the Institute of GeoEnergy Engineering at Heriot-Watt University, where he has worked since 1990. His research interests include the study of fluid flow in porous media, and he has over 300 publications in this field. Since 2005 he has worked on Carbon Capture Utilisation and Storage, and is a member of the directorate of Scottish Carbon Capture and Storage (SCCS - ).

He is involved in projects investigating secure CO2 storage in saline formations and depleted hydrocarbon reservoirs, and has co-edited one book, authored a chapter in another book, co-authored 38 peer reviewed publications and supervised 7 PhD students to completion on the topic. He teaches Subsurface Gas Storage on Heriot-Watt University’s Subsurface Energy Systems MSc programme.

Affiliations and Accreditation
PhD Heriot-Watt University - Petroleum Engineering
BSc The University of Edinburgh - Physics

Courses Taught
N548: Reservoir Modelling for Storage

Tim Wynn

Tim is the Principal Geologist and Geomechanics Specialist at TRACS International. He has over 29 years of experience in in geological and geomechanical reservoir characterisation and modelling, project management, asset evaluations (CPRs, Audits), and training aimed at supporting decision making in energy companies.

Upon completion of his PhD in 1994, Tim worked as Structural Geologist with GeoScience Limited for 6 years, before working as Geoscientist for ICE Energy Ltd, which was later acquired by TRACS International. Tim has worked for TRACS since 2001, progressing from Reservoir Geologist to his current role.

Tim has considerable experience of characterising and modelling clastic, carbonate, and basement reservoirs in the North Sea, Middle East, Europe, Russia, South America, Africa, and SE Asia. He has a particular interest in characterising and modelling fractured reservoirs and in the application of geomechanics to wellbore stability, reservoir stimulation and reservoir management. He has applied these skills to hydrocarbon, Carbon Capture & Storage (CCS) and geothermal projects and has published technical papers on many of these topics, Tim is also a Technical Paper Reviewer for the Geological Society, London, SPE, and EAGE and an Editorial Board member of Petroleum Geoscience.

Affiliations and Accreditation
PhD Imperial College, London - Structural Geology
BSc Portsmouth Polytechnic – Geology
CGeol- Chartered Geologist
Fellow of the Geological Society, London; Technical Paper Reviewer, Petroleum Geoscience Editorial Board Member
Member of the PESGB
Member of the SPE; Technical Paper Reviewer
Member of the EAGE; Technical Paper Reviewer

Courses Taught 
N445: The Subsurface Applications of Geomechanics
N548: Reservoir Modelling for Storage 
N923: Modelling of Reservoir Structure and Fractures (Somerset, UK)

CEU: 2.1 Continuing Education Units
PDH: 21 Professional Development Hours
Certificate: Certificate Issued Upon Completion
RPS is accredited by the International Association for Continuing Education and Training (IACET) and is authorized to issue the IACET CEU. We comply with the ANSI/IACET Standard, which is recognised internationally as a standard of excellence in instructional practices.
We issue a Certificate of Attendance which verifies the number of training hours attended. Our courses are generally accepted by most professional licensing boards/associations towards continuing education credits. Please check with your licensing board to determine if the courses and certificate of attendance meet their specific criteria.