Porous Media Tea Time Talk # 8

The Porous Media Tea Time Talks (PMTTT) team is happy to invite you to the next Porous Media Tea Time Talks (#PorousMediaTTT) session on 06.10.2020 at 10:30 am CEST, which will be streamed live on our YouTube Channel. You can also watch the recording of the presentation afterwards if you like.

Feel free to post your questions using the comment field on YouTube.

The two presentations are:

Differential diffusivity effects in reactive convective dissolution

By: Mamta Jotkar, Université libre de Bruxelles, Belgium

  • Following the motivation of improving the efficiency and safety of the CCS technique, we numerically studied reactive-convective dissolution of two partially miscible phases in a porous medium.
  • In our recent publications (Jotkar et al. 2019 PCCP), we had shown that an A+B–>C type of a reaction can destabilize the convective dynamics and increase the dissolution rates significantly, depending on the relative contribution of each of the species to the density of the host solution.
  • In the talk, I will show that when all species diffuse differently, it further alters the dynamics giving rise to an additional convection zone below the reaction front: either a double-diffusive or diffusive-layer convection. This in return impacts the dissolution rates. Our results are crucial for accurately modelling reactive convective dissolution since it is likely that most solutes diffuse at different rates.


Deep Learning and Efficient Simulation in Digital Rocks Analysis

By: Ying Da Wang, University of New South Wales, Australia

  • The digital and data driven nature of image based rock analysis lends itself well to being enhanced by Machine Learning techniques.
  • Improving the efficiency of pore-scale modelling pushes the discipline forwards in assisting in Special Core Analysis.
  • The entire workflow can be enhanced, from higher imaging quality, automated and unbiased processing, and faster modelling.

The goal of the Porous Media TTT is to act as a complimentary platform to the already very successful Geoscience and Geoenergy webinars with the focus placed on young professionals.

The Porous Media Tea Time Talks (PMTTT) team is:
Catherine Spurin, Imperial College London, UK; Maja Rücker, Imperial College London, UK; Kamaljit Singh, Heriot-Watt University, UK; Tom Bultreys, Ghent University, Belgium; Mohammad Nooraiepour, University of Oslo, Norway; Marcel Moura, PoreLab, University of Oslo, Norway