22–25 May 2023
Europe/London timezone

Bridging the gap between lab experiments and mixed-dimensional modeling for flow and transport in fractured media

23 May 2023, 09:30
15m
Oral Presentation (MS03) Flow, transport and mechanics in fractured porous media MS03

Speaker

Jakub Both (University of Bergen)

Description

The existence of fractures in porous media has a strong impact on the characteristics of the flow behavior. In geological rocks, fractures occur both naturally as well as intentionally induced as in geothermal applications. Thus, accurate modeling and simulation of flow and transport in fractured media is vital for many industrial applications.

Mixed-dimensional models have been widely used for modeling flow in fractured media. The high aspect ratio of the fracture width as compared to their remaining dimensions allows for representing them as lower-dimensional manifolds. By combining the fundamental principle of mass conservation and Darcy’s law on each subdomain and mass transfer inbetween domains, underlying equidimensional models can be conveniently replaced. Yet, despite the large interest in mixed-dimensional models for flow and transport in fractured media, direct comparisons to high-quality lab experiments have been missing.

In this talk, we present such a comparison study based on PET experiments of tracer transport in fractured sandstone and corresponding numerical simulations of mixed-dimensional flow and transport (PorePy). In addition, we present tailored image analysis (DarSIA) used to transfer PET images to Darcy-scale images and to compare different Darcy scale images by suitable metrics.

Participation In-Person
Country Norway
MDPI Energies Student Poster Award No, do not submit my presenation for the student posters award.
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Primary authors

Jakub Both (University of Bergen) Bergit Brattekås (Dept. of Physics and Technology, University of Bergen, Norway) Martin Ferno (University of Bergen) Eirik Keilegavlen (University of Bergen) Jan Martin Nordbotten (University of Bergen)

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