Evaluation on H2, N2, He & CH4 diffusivity in rock and leakage rate by diffusion in underground gas storage
文献类型：期刊论文
| 作者 | Song, Yujia1,2; Song, Rui1,2; Liu, Jianjun1,2; Yang, Chunhe1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2025-01-27 |
| 卷号 | 100页码:234-248 |
| 关键词 | Underground gas storage Gas diffusivity Experiment and modeling Gas loss |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2024.12.299 |
| 英文摘要 | Underground gas storage (UGS) is a critical energy infrastructure that can store compressed air, natural gas, hydrogen, helium, and other gases. The key subsurface mediums for UGS include salt caverns, depleted oil and gas reservoirs, aquifers, mines, and cavities. The gas diffusivity of the rock in the geological traps is a crucial factor in evaluating the gas loss in UGS. This work focuses on the impact of gas diffusion on the sealability of bedded salt cavern for underground gas storage in China. A series of systemic gas diffusion experiments of hydrogen (H2), nitrogen (N2), helium (He), and methane (CH4) in salt rocks and interlayer mudstones in Chuzhou salt cavern storage and Wen 96 depleted gas reservoir storage in China were conducted. The porosity, permeability, and pore size distribution (PSD) tests were coupled to analyze the diffusivity of gases in varied rock samples. The numerical model of multi-component gas transport of typical salt cavern gas storage in Chuzhou project, based on the experimental results considering the gas seepage and diffusion, was constructed to evaluate the gas loss in salt caverns. The results revealed the following: (1) The diffusion coefficient of the mudstone were approximately two orders of magnitude larger than those of salt rocks, and the mudstone showed obvious bidisperse diffusion behavior; (2) The diffusion coefficients of helium and hydrogen was higher than those of nitrogen and methane, but methane showed a larger diffusion capacity compared to other gases; (3) A small pore size in rock samples slowed down the gas diffusion rate, while a larger surface area facilitated an increase in diffusion capacity; (4) The hydrogen leakage rates in salt cavern storage was larger than that of helium and methane. Assuming the surrounding rock remained intact, the annual gas leakage rate due to diffusion was less than 1% when the gas diffusion coefficient was less than 1.0 x 10-5 m2/s. |
| 资助项目 | National Science and Technology Major Project of China[2024ZD1004305] ; National Natural Science Foundation of China[52241602] ; National Natural Science Foundation of China[52474086] ; CNPC Innovation Found[2022DQ02-0613] ; Natural Science Foundation of Wuhan[2024040701010062] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001394127800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37832]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Song, Rui |
| 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 |
| 推荐引用方式 GB/T 7714 | Song, Yujia,Song, Rui,Liu, Jianjun,et al. Evaluation on H2, N2, He & CH4 diffusivity in rock and leakage rate by diffusion in underground gas storage[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2025,100:234-248. |
| APA | Song, Yujia,Song, Rui,Liu, Jianjun,&Yang, Chunhe.(2025).Evaluation on H2, N2, He & CH4 diffusivity in rock and leakage rate by diffusion in underground gas storage.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,100,234-248. |
| MLA | Song, Yujia,et al."Evaluation on H2, N2, He & CH4 diffusivity in rock and leakage rate by diffusion in underground gas storage".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 100(2025):234-248. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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