Pore-scale numerical investigation on the capillary trapping of hydrogen in natural sandstone under in-situ wettability condition: Implications for underground hydrogen storage in aquifers
文献类型：期刊论文
| 作者 | Peng, Jiajun3,4; Xia, Binwei3,4; Lu, Yiyu3,4; Wang, Lei3,4; Song, Rui1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2025-03-27 |
| 卷号 | 113页码:509-522 |
| 关键词 | Capillary trapping In-situ wettability Underground hydrogen storage Hydrogen-water two-phase flow Pore-scale modeling Imbibition |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2025.02.480 |
| 英文摘要 | Understanding the capillary trapping mechanisms of hydrogen in natural rock with in-situ wettability is crucial for enhancing hydrogen recovery during underground hydrogen storage (UHS) in aquifers. In this study, microcomputed tomography images of the hydrogen-water-Bentheimer sandstone system acquired after drainage with hydrogen are utilized to calculate in-situ contact angles, reconstruct the pore model, and establish initial fluid distributions for subsequent simulations. A novel in-situ wettability modeling method for simulating pore-scale hydrogen-water two-phase flow is developed using the calculated in-situ contact angles and volume of fluid method. The effectiveness of this method is validated using experimental results. The hydrogen capillary trapping in Bentheimer sandstone under the in-situ wettability condition during both spontaneous and forced imbibition is simulated. The effects of water injection velocity and interfacial tension on hydrogen withdrawal are analyzed and discussed. The results show that (1) The hydrogen-water-sandstone system exhibits a heterogeneous water-wetting condition. Compared to experimental results, the developed in-situ wettability modeling method is more effective in predicting hydrogen-water two-phase flow in natural rock than previous methods. (2) The growth and accumulation of water films in the throats with large pore-throat ratios is the primary cause of snap-off events and capillary trapping of hydrogen. (3) The residual hydrogen saturation and hydrogen-water interfacial area decrease as the capillary number or water injection velocity increases. (4) The slight reduction in interfacial tension between gas and water due to the use of methane cushion gas has a negligible contribution to enhancing hydrogen recovery in the UHS. |
| 资助项目 | Key Technologies Research and Development Program of China[2023YFC3009005] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001441556300001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36662]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xia, Binwei |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400030, Peoples R China 4.Chongqing Univ, Sch Resources & Safety Engn, Chongqing 400030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Jiajun,Xia, Binwei,Lu, Yiyu,et al. Pore-scale numerical investigation on the capillary trapping of hydrogen in natural sandstone under in-situ wettability condition: Implications for underground hydrogen storage in aquifers[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2025,113:509-522. |
| APA | Peng, Jiajun,Xia, Binwei,Lu, Yiyu,Wang, Lei,&Song, Rui.(2025).Pore-scale numerical investigation on the capillary trapping of hydrogen in natural sandstone under in-situ wettability condition: Implications for underground hydrogen storage in aquifers.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,113,509-522. |
| MLA | Peng, Jiajun,et al."Pore-scale numerical investigation on the capillary trapping of hydrogen in natural sandstone under in-situ wettability condition: Implications for underground hydrogen storage in aquifers".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 113(2025):509-522. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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