Pore-Scale Numerical Simulation of Hydrogen Capillary Trapping in Natural Sandstone under In-Situ Wettability Conditions
Binwei Xia<sup>1,2</sup> Jiajun Peng<sup>1,2</sup>
🤖 gxceed AI 要約
日本語
帯水層への水素貯蔵における回収率向上のため、天然砂岩中の水素毛管捕捉機構を調べた研究。貯留層条件で水素-水変位実験を行い、マイクロCTで分布を可視化。さらに、その画像に基づく細孔スケール数値シミュレーションにより、捕捉メカニズムを詳細に解析している。
English
This study investigates hydrogen capillary trapping in natural sandstone under reservoir conditions to improve hydrogen recovery from aquifer storage. Micro-CT imaging during displacement experiments and pore-scale numerical simulations reveal trapping mechanisms, providing insights for optimizing underground hydrogen storage operations.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
水素社会実現に向け、日本では海外からの水素輸入や国内での大量貯蔵が検討されており、帯水層貯留は重要な選択肢。本研究は貯留効率と回収率の評価に資する基礎的知見を提供する。
In the global GX context
As global hydrogen projects scale up, geological storage in aquifers is a key component. This pore-scale study offers transferable insights for storage efficiency and recovery, informing international hydrogen infrastructure planning.
👥 読者別の含意
🔬研究者:Provides validated pore-scale simulation methods for hydrogen trapping in sandstone, useful for reservoir engineering and storage modeling.
🏢実務担当者:Relevant for companies planning underground hydrogen storage projects, offering quantitative insights into trapping and recovery potential.
🏛政策担当者:Supports evidence-based policy for hydrogen storage infrastructure, indicating technical feasibility of aquifer storage.
📄 Abstract（原文）
A deep understanding of the hydrogen capillary trapping mechanism under in-situ wettability conditions of natural rocks is crucial for improving hydrogen recovery during hydrogen storage in aquifers. In this study, sandstone hydrogen-water displacement experiments were conducted under reservoir in-situ temperature and pressure conditions, and hydrogen-water distribution images inside the sandstone during the displacement process were obtained through micro-CT scanning. Based on the obtained h...
🔗 Provenance — このレコードを発見したソース
- chinarxiv https://chinaxiv.org/abs/202507.00442first seen 2026-08-02 18:54:47
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