-
- MR33A-0061: Nanostructural Assessment of Shale Caprocks for Underground Hydrogen Storage
-
Board 0061‚ Hall EFG (Poster Hall)NOLA CC
Author(s):Generic 'disconnected' Message
Jennifer Rubalcaba, California State University Bakersfield (First Author)
Arun Bhattacharjee, Lawrence Berkeley National Laboratory
Harrison Lisabeth, Lawrence Berkeley National Laboratory
Liaosha Song, California State University Bakersfield
Benjamin Gilbert, Lawrence Berkeley National Laboratory
Tyler Garza, California State University Bakersfield
Madison Tarpley, California State University Bakersfield (Presenting Author)
Underground hydrogen storage (UHS) in shale caprocks shows potential for large-scale, long-term hydrogen storage to support clean energy, but the interaction between pores and minerals in these rocks needs more study. This research examined two shale samples from California’s Elk Hills Oil Field using advanced X-ray imaging to analyze pore networks and the mineral pyrite. Results revealed major differences in porosity (0.46% and 9.16%) and pyrite content (5.86% and 2.26%) between the samples. Pores were frequently found next to pyrite grains, suggesting that stored hydrogen could react with pyrite. Such reactions might dissolve pyrite, increase pore space, and potentially alter the rock’s ability to seal in gases, affecting hydrogen movement or leakage. Further research is needed to understand how hydrogen-driven changes in minerals impact the safety and effectiveness of underground hydrogen storage. These findings provide valuable data for evaluating whether shale rocks can be used for secure, long-term hydrogen storage.
Scientific DisciplineSuggested ItinerariesNeighborhoodType
Enter Note
Go to previous page in this tab
Session
