Effect of hydrate distribution on effective permeability of hydrate-bearing sediments
文献类型：期刊论文
| 作者 | He, Juan1,2; Li, Xiaosen2,3,4; Chen, Zhaoyang2,3,4 |
| 刊名 | GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 116页码:13 |
| 关键词 | Hydrate distribution Heterogeneity Effective permeability Net increase of electrical resistance Variation coefficient of NIR Hydrate formation |
| ISSN号 | 2949-9097 |
| DOI | 10.1016/j.jgsce.2023.205031 |
| 通讯作者 | Chen, Zhaoyang(chenzy@ms.giec.ac.cn) |
| 英文摘要 | Hydrate distribution influences the gas-water flow capacity and thus hydrate production in the hydrate-bearing sediments. The effective permeability is a key parameter to evaluate hydrate production capacity. However, few laboratory studies are focused on the effect of hydrate distribution on the effective permeability in the hydratebearing sediments. Thus, the water-phase effective permeability of nine hydrate-bearing samples prepared in a large-scaled pressure vessel under the excess-water setting was measured. The changes of pressure drop, temperature, and the electrical resistance during the measurements were analyzed. The measured and predicted effective permeability were compared. Afterwards, the heterogeneity of hydrate distribution was represented by the net increase of the electrical resistance (NIR) and its variation coefficient (VNIR) to define its effect on the effective permeability. The results showed that water flow channel change for the fresh hydrates caused the averaged pressure drop difference of 39.73 kPa in the repeated measurements. Hydrate dissociation for water flow impacted permeability measurements little. Moreover, the heterogeneous hydrate distribution, instead of hydrate saturation and pore habits, was found to cause a large deviation between the measured and predicted effective permeability. In the sample with hydrate saturation of 3.92%-8.01%, hydrates were mainly distributed at some local position. The corresponding effective permeability had a larger randomness because of the severer heterogeneity. Besides, as hydrate saturation was less than 19.46%, heterogeneity degree changes were opposite to the effective permeability changes. Instead, hydrate distribution impacted the effective permeability little. This work is beneficial to understand the physical properties of the hydrate-bearing sediments. |
| WOS关键词 | METHANE-HYDRATE ; RELATIVE PERMEABILITY ; PHASE PERMEABILITY ; POROUS-MEDIA ; SATURATION ; SIZE ; FLOW |
| 资助项目 | National Key R & D Program of China[2021YFC2800902] ; National Natural Science Foundation of China[51736009] ; Guangdong Major Project of Basic and Applied Basic Research[2020B0301030003] ; Guangdong Special Support Program[2019BT02L278] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001141830000001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key R & D Program of China ; National Natural Science Foundation of China ; Guangdong Major Project of Basic and Applied Basic Research ; Guangdong Special Support Program |
| 源URL | [http://ir.giec.ac.cn/handle/344007/40693]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Chen, Zhaoyang |
| 作者单位 | 1.Chengdu Univ Technol, State Key Lab Oil & Gas Geol & Exploitat, Chengdu 610059, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.Guangdong Key Lab New & Renewable Energy Res & Dev, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Juan,Li, Xiaosen,Chen, Zhaoyang. Effect of hydrate distribution on effective permeability of hydrate-bearing sediments[J]. GAS SCIENCE AND ENGINEERING,2023,116:13. |
| APA | He, Juan,Li, Xiaosen,&Chen, Zhaoyang.(2023).Effect of hydrate distribution on effective permeability of hydrate-bearing sediments.GAS SCIENCE AND ENGINEERING,116,13. |
| MLA | He, Juan,et al."Effect of hydrate distribution on effective permeability of hydrate-bearing sediments".GAS SCIENCE AND ENGINEERING 116(2023):13. |
入库方式： OAI收割
来源：广州能源研究所
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