Investigations into methane hydrate formation, accumulation, and distribution in sediments with different contents of illite clay
文献类型：期刊论文
| 作者 | Chen, Chang1,2,3; Zhang, Yu1,2,3; Li, Xiaosen1,2,3; He, Jiayuan4; Gao, Fei1,2,3; Chen, Zhaoyang1,2,3 |
| 刊名 | APPLIED ENERGY
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 359页码:21 |
| 关键词 | Methane hydrate formation Illite clay Hydrate distribution Hydrate morphology Electrical resistance |
| ISSN号 | 0306-2619 |
| DOI | 10.1016/j.apenergy.2024.122661 |
| 通讯作者 | Li, Xiaosen(lixs@ms.giec.ac.cn) |
| 英文摘要 | Fine-grained sediments are widely distributed in naturally occurring hydrate-bearing sediments (HBS). However, the effects of silty and clayey minerals on the kinetics of methane hydrate (MH) formation and distribution are less well understood than in sandy sediments. In this study, a series of experiments were designed, which involves the kinetics and morphological observations to investigate the MH formation in clayey silty sediments with mass fractions of illite ranging from 0 to 50 wt%. The evolution of MH accumulation and distribution were analyzed based on temperature and electrical resistance measurements. The experimental results showed that the mass fraction of illite has a critical effect on MH nucleation, formation rate and distribution within the sandy sediment. The effect of illite on the gas uptake rate is primarily observed in the early MH formation stages, in which the MH formation rate in the system with 10 wt% illite exhibits approximately 1.66 times higher than that of pure sandy sediment. However, as the illite mass fraction increases from 20 wt% to 40 wt%, the MH formation rate decreases, only to increase significantly when the mass fraction reaches 50 wt%, which may be due to changes in the sediment skeletal structure. In the pure sandy system, MH primarily accumulates in the upper layer of the sediment. As the illite mass fraction increases, MH content in the lower layer of the sediment gradually increases. In morphological observations, several new cracks appeared after MH formation in highly silty and clayey sediments, increasing the MH formation rate. The electrical resistance of sediments exhibits a close relationship with hydrate saturation, and it basically increases proportionately with hydrate saturation until certain inflection points. After these points, the electrical resistance shows a significant increase. Moreover, the hydrate saturation at the inflection points tends to increase with higher illite mass fractions due to a more dispersed water distribution. |
| WOS关键词 | NATURAL-GAS HYDRATE ; PHASE PERMEABILITY ; GROWTH ; SATURATION ; RECOVERY ; BEHAVIOR ; ENERGY ; BED |
| 资助项目 | National Natural Science Foundation of China[52076208] ; National Natural Science Foundation of China[51736009] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278] ; National Key R&D Program of China[2021YFC2800902] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2022D043] ; [GDME-2020D044] ; [GDNRC[2022]45] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001167067200001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Guangdong Special Support Program-Local innovation and entrepreneurship team project ; National Key R&D Program of China ; Special Project for Marine Economy Development of Guangdong Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41075]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Xiaosen |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.SINOPEC Petr Explorat & Prod Res Inst, Beijing 102206, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Chang,Zhang, Yu,Li, Xiaosen,et al. Investigations into methane hydrate formation, accumulation, and distribution in sediments with different contents of illite clay[J]. APPLIED ENERGY,2024,359:21. |
| APA | Chen, Chang,Zhang, Yu,Li, Xiaosen,He, Jiayuan,Gao, Fei,&Chen, Zhaoyang.(2024).Investigations into methane hydrate formation, accumulation, and distribution in sediments with different contents of illite clay.APPLIED ENERGY,359,21. |
| MLA | Chen, Chang,et al."Investigations into methane hydrate formation, accumulation, and distribution in sediments with different contents of illite clay".APPLIED ENERGY 359(2024):21. |
入库方式： OAI收割
来源：广州能源研究所
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