Dissolution of Capillary-Trapped CO2

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• George Poole (Institute of Energy and Environmental Flows)
• Friday 12 May 2023, 13:00-14:00
• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge.

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We will be meeting for lunch at 1pm and the talk will be starting around 1:30pm. Please email us at damtp-gkb-request@lists.cam.ac.uk if you would like to join us for lunch.

The topic of geological carbon sequestration has provided ample motivation for both numerical and experimental studies of porous media convection, wherein the density contrasts of brine containing dissolved CO2 drive convective dynamics. Many studies to date have focussed on convection initiated at the interface between buoyant, single-phase CO2 and denser brine underneath. However, CO2 can also be capillary-trapped in the microscopic pore spaces of the reservoir, in effect leaving behind tiny ‘bubbles’ that are themselves soluble in the surrounding brine. In this talk I shall introduce a model of convection driven by such a process, and discuss the work that has gone into developing a code based on the open-source finite element solver FEniCS to tackle this problem computationally.

This talk is part of the G.K. Batchelor Laboratory lunchtime seminar series.

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