Project description
Researching basalt and its potential for CO2 storage applications
In recent years, a variety of CO2 capture and sequestration technologies and solutions have been developed to help achieve Green Deal goals. CO2 sequestration technology, especially, has seen widespread adoption, using mostly basaltic rocks to reduce capital costs and the risk of CO2 leakage. However, research on basalt as a CO2 storage solution remains limited. With the support of the Marie Skłodowska-Curie Actions programme, the DECODE project will address this research gap by investigating the long-term coupled hydromechanical response of basalts to injected CO2 across scales. The project will conduct key micrometre- and centimetre-scale rock deformation experiments to acquire comprehensive data that could establish basalt as an efficient and safe CO2 storage solution.
Objective
Sustainable usage of the subsurface for mitigating climate change relies on multiple low-carbon solutions. CO2 sequestration has become an increasingly adopted technology, with basaltic rocks emerging as a prime target due to low upfront capital cost and the negligible risk of CO2 leakage, as it is converted into solid mineral forms. Commercial-scale applications of CO2 storage in basalt requires a thorough understanding of the mechanical response of reservoir rocks to injected CO2.
This project, DECODE, aims to reveal the long-term coupled hydro-mechanical response of basalts to injected CO2 across scales. DECODE will perform state-of-the art experiments at two scales:
(1) Micrometer-scale experiments in sophisticated X-ray transparent deformation rig, where the in-situ mineral carbonation process will be visualized; and
(2) Centimetre scale rock deformation experiments using full-field measurements under axisymmetric and true triaxial stress conditions, to highlight the strain localization and changes in permeability during CO2 injection-induced failure.
Building upon the laboratory experiments, at the meter and kilometer scales, a numerical model will be developed using the Discrete Element Method and the homogenized response of permeability associated with mineral carbonation, to better understand hydro-mechanical coupling with CO2 injection in basaltic rocks.
The breakthrough of the project is to advance the understanding of reactive transport in geomaterials and to establish basalt as a safe and effective CO2 storage solution. The proposed research programme leverages the strengths of both the fellow and the host supervisor: the fellow specializes in experimental rock mechanics and deformation localization, while the host supervisor brings expertise in grain-scale modelling. This complementary expertise, combined with a well-tailored career development package for the fellow at the host university (Manchester), ensures the success of DECODE.
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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(opens in new window) HORIZON-MSCA-2025-PF
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M13 9PL Manchester
United Kingdom
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