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Personal profile

Research interests

I am the Director or Research for the School of Energy, Geoscience, Infrastructure and Society (EGIS) and the Energi Simulation Chair in Carbonate Reservoir Simulation. In the latter role, I head the Carbonate Reservoir Group at the Institute of Geoenergy Engineering (IGE). I served as the Director for IGE from 2017 to 2020.

Together with the Carbonate Reservoir Group and colleagues at the International Centre for Carbonates, I conduct fundamental and applied research on improving the sustainable management of geo-resources in carbonate and fractured reservoirs, from hydrocarbon production to CO2 storage and geothermal energy.

Our research activities include, but are not limited to, pore-scale studies of multi-phase and multi-component transport, micro-X-Ray CT visualisation of flow processes, upscaling flow and transport in fractured reservoirs, near-wellbore flow processes, feedback between carbonate reservoir architectures and fluid flow, numerical method development, and history matching.


I joined the Institute of Petroleum Engineering (now Institute of GeoEnergy Engineering) in 2006 as a lecturer. I was promoted to senior lecturer in 2009 and as full professor in 2010. In 2017 I became the Director of IPE. Before joining IPE, I was a postdoctoral researcher at ETH Zurich from 2004 to 2006.

I obtained my PhD degree in computational geosciences from the ETH Zurich in 2004 and hold an MSc degree in geosciences from Oregon State University. I was a visiting researcher at Aramco Services Company in Houston in 2015, at the Department of Earth Science and Engineering at Imperial College in 2006, and was a visiting fellow at the Department of Mathematics at Australia National University in 2001.

I am serving on different technical and strategic committees of the European Association of Geoscientists and Engineers (EAGE). I am also a member of the Society of Petroleum Engineers (SPE), for which I have chaired panel discussions (e.g. 2013 RSCS or 2014 ADIPEC) and serve on technical conference committees (e.g. 2016 ATCE, 2011, 2013, and 2019 RSCS, or 2017 and 2019). I co-convened the 2012 joint AAPG-SPE-SEG Hedberg Research Conference on Fundamental Controls of Flow in Carbonates in France. I served on the editorial board for Transport in Porous Media and am currently serving on the editorial board for Petroleum Geoscience.

I received the Interpore Rosette for outstanding contributions to the society in 2015. In 2017 I received the EAGE Alfred Wegener Award for my group's groundbreaking research in carbonate reservoir modelling and simulation. I was elected as a Fellow of the Energy Institute in 2019, and became a Fellow of the Royal Society of Edinburgh in 2020.

I have provided consultancy to the energy industry on some major technical issues, for example on the links between gas production and subsidence in the Wadden region, Netherlands. I also teach regularly CPD courses to the energy industry, for example at ENI Corporate University on applied reservoir simulation.

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Research Output

Comparison of Chemical-Component Transport in Naturally Fractured Reservoirs Using Dual-Porosity and Multiple-Interacting-Continua Models

Al-Rudaini, A., Geiger, S., Mackay, E., Maier, C. & Pola, J., Aug 2020, In : SPE Journal. 25, 4, p. 1964-1980 17 p.

Research output: Contribution to journalArticle

  • Fluid Flow Characterization Framework for Naturally Fractured Reservoirs using Small Scale Fully Explicit Models

    Wong, D. L. Y., Doster, F., Geiger, S., Francot, E. & Gouth, F., Sep 2020, In : Transport in Porous Media. 134, 2, p. 399-434 36 p.

    Research output: Contribution to journalArticle

    Open Access
  • 18 Downloads (Pure)
  • Multi-objective optimization under uncertainty of geothermal reservoirs using experimental design-based proxy models

    Schulte, D. O., Arnold, D., Geiger, S., Demyanov, V. & Sass, I., Jul 2020, In : Geothermics. 86, 101792.

    Research output: Contribution to journalArticle

  • Optimisation of Polymer Flooding in a Heterogeneous Reservoir Considering Geological and History Matching Uncertainties

    Ibiam, E., Geiger, S., Demyanov, V. & Arnold, D., 2020, SPE Europec Featured at 82nd EAGE Conference and Exhibition. Society of Petroleum Engineers, SPE-200568-MS

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

  • Prizes

    Alfred Wegener Award

    Geiger, Sebastian (Recipient), 2017

    Prize: Prize (including medals and awards)

  • Fellow of the Energy Institute

    Geiger, Sebastian (Recipient), 2019

    Prize: Election to learned society

    Fellow of the Royal Society of Edinburgh

    Geiger, Sebastian (Recipient), 2020

    Prize: Election to learned society

    Interpore Rosette

    Geiger, Sebastian (Recipient), 18 May 2015

    Prize: Prize (including medals and awards)


    3rd EAGE Workshop on Naturally Fractured Reservoirs

    Sebastian Geiger (Organiser)

    1 Jan 2017 → …

    Activity: Participating in or organising an eventParticipation in workshop, seminar, course

    Fractured Carbonate Reservoir Modelling and Simulation

    Sebastian Geiger (Consultant)

    27 Mar 201731 Mar 2017

    Activity: ConsultancyDelivery of CPD

    Panel Discussion: Academic Jobs in Oil and Gas

    Sebastian Geiger (Speaker)

    21 Feb 2017

    Activity: Talk or presentationPublic lecture

    3rd EAGE Workshop on Naturally Fractured Reservoirs

    Sebastian Geiger (Invited speaker)


    Activity: Participating in or organising an eventParticipation in workshop, seminar, course

    Applied Reservoir Simulation

    Sebastian Geiger (Consultant)

    1 Feb 20165 Feb 2016

    Activity: ConsultancyDelivery of CPD