GeoSafe: Characterisation and Evolution of Critical Flow Paths in a Geological Disposal Facility

Ashman, Isabel ORCID: 0000-0002-7491-0678, Faulkner, Daniel, Worden, Richard and Fisher, Quentin (2025) GeoSafe: Characterisation and Evolution of Critical Flow Paths in a Geological Disposal Facility [Poster]

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Description

The success of a Geological Disposal Facility (GDF) requires that the waste canisters are isolated from subsurface flow pathways for gas and fluids. Hence, it is important to quantify the evolution of the mechanical properties of the target rock types with time and stress, such as permeability and yield strength. The excavation of the GDF will perturb the stress state and induce damage in the rocks, which could drastically increase the permeability of the rock mass. The self-sealing of faults and fractures to fluid or gas flow will therefore be vital for the long-term efficacy of the GDF. The aims of this work are: 1. Identify the mechanical & flow properties of the low strength sedimentary rocks. 2. Understand how permeability changes with stress as environmental conditions evolve over time. 3. Measure the ability for damage to self-heal as a function of time, temperature, pressure and pore fluid chemistry.

Item Type:	Poster
Divisions:	Faculty of Science & Engineering Faculty of Science & Engineering > School of Environmental Sciences
Depositing User:	Symplectic Admin
Date Deposited:	16 May 2025 07:20
Last Modified:	16 May 2025 07:20
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3192785
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