Skip to Main content Skip to Navigation
Theses

Characterization of geochemical interactions and migration of hydrogen in sandstone sedimentary formations : application to geological storage

Abstract : Underground hydrogen storage has been introduced as storage solution for renewable energy systems as it offers a unique potential to store large amounts of energy, especially in sedimentary formations such as sandstones. However, evaluating the underground hydrogen storage requires a precise knowledge of the hydrodynamic behavior of the fluids and of mineralogical transformations due to the presence of hydrogen that may affect the storage properties. Therefore, this study is consists in three parts: 1- Study of geochemical reactivity of hydrogen in sandstone sedimentary formations: The experimental products bear the mark of only very limited reaction between sandstone minerals and hydrogen. Taken together with the numerical results, this study demonstrates that hydrogen, once injected, can be considered as relatively inert. Overall, our results support the feasibility of hydrogen confinement in geological reservoirs such as sandstones. 2- Study of the migration of hydrogen in sandstone: determination of relative permeability and capillary pressure of hydrogen-water system: To provide quantitative data for the development of underground hydrogen storage, capillary pressures and relative permeabilities of hydrogen-water system have been measured at two potential conditions. The interpretation of the results would suggest that the obtained data are applicable for the entire range of hydrogen storage conditions. Interfacial tensions and contact angles for the hydrogen-water system have been also derived. 3- Numerical simulation of a geological hydrogen storage site: The numerical simulation was performed to characterize the evolution of pure hydrogen storage, by considering the seasonal fluctuation of renewable energy and the effect of hydrogen loses due to the biotic reactions.
Document type :
Theses
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-01713106
Contributor : Abes Star :  Contact
Submitted on : Tuesday, February 20, 2018 - 11:02:05 AM
Last modification on : Wednesday, September 23, 2020 - 4:36:32 AM
Long-term archiving on: : Monday, May 21, 2018 - 12:14:31 PM

File

alireza-ebrahimiyekta_3466.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01713106, version 1

Collections

Citation

Alireza Ebrahimiyekta. Characterization of geochemical interactions and migration of hydrogen in sandstone sedimentary formations : application to geological storage. Earth Sciences. Université d'Orléans, 2017. English. ⟨NNT : 2017ORLE2016⟩. ⟨tel-01713106⟩

Share

Metrics

Record views

287

Files downloads

1162