Linear stability and numerical analysis of gas hydrate dissociation in hydrate bearing sediments
文献类型：期刊论文
| 作者 | Zhang Y(张岩); Wei, Jiangong3,4,5; Zhang XH(张旭辉)6,7 ; Ren WL(任万龙)6,7; Lu XB(鲁晓兵)6,7; Guo, Hongsheng1,2; Wang, Tianju1,2
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| 刊名 | APPLIED OCEAN RESEARCH
 |
| 出版日期 | 2025 |
| 卷号 | 154页码:7 |
| 关键词 | Gas hydrate Hydrate bearing sediments Linear stability Hydrate dissociation |
| ISSN号 | 0141-1187 |
| DOI | 10.1016/j.apor.2024.104394 |
| 通讯作者 | Zhang, Xuhui(zhangxuhui@imech.ac.cn) |
| 英文摘要 | The stability of gas hydrate (GH) dissociation is crucial for understanding and predicting various hazards triggered by GH dissociation, such as landslides and gas blowouts. This study employs linear stability analysis and numerical simulation approaches to investigate the dynamics of GH dissociation under depressurization and heating. An instability criterion is derived, emphasizing conditions where the environmental heat supply exceeds the heat absorption by GH. We analyze the spatial and temporal evolution of key parameters, such as pore pressure, GH volume fraction, temperature, and strength, across different dissociation zones within the sediment. It is observed that pore pressure and temperature increase rapidly over time in unstable conditions, resulting in GH dissociation completing in approximately 10 sand a sharp decrease in the strength of hydrate- bearing sediments (HBS). Our findings offer insights into the behavior of HBS during GH dissociation and elucidate the formation mechanism of potential hazards associated with GH dissociation. |
| 分类号 | 一类 |
| WOS关键词 | METHANE HYDRATE ; KINETICS |
| 资助项目 | National Natural Science Founda-tion of China[12072347] ; National Natural Science Founda-tion of China[12302516] ; National Natural Science Founda-tion of China[U2344223] ; China Postdoctoral Science Foundation, China[2024T170956] ; CNPC New Energy Key Project[2021DJ4902] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001410491100001 |
| 资助机构 | National Natural Science Founda-tion of China ; China Postdoctoral Science Foundation, China ; CNPC New Energy Key Project |
| 其他责任者 | Zhang, Xuhui |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/98276]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.CNPC Offshore Engn Co Ltd, Beijing 102600, Peoples R China 2.CPOE Res Inst Engn Technol, Tianjin 300451, Peoples R China; 3.Guangzhou Marine Geol Survey, MLR Key Lab Marine Mineral Resources, Guangzhou 510075, Peoples R China; 4.China Geol Survey, Acad South China Sea Geol Sci, Sanya 572025, Peoples R China; 5.Guangzhou Marine Geol Survey, Sanya Inst South China Sea Geol, Sanya 572025, Peoples R China; 6.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 7.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Zhang Y,Wei, Jiangong,Zhang XH,et al. Linear stability and numerical analysis of gas hydrate dissociation in hydrate bearing sediments[J]. APPLIED OCEAN RESEARCH,2025,154:7. |
| APA | 张岩.,Wei, Jiangong.,张旭辉.,任万龙.,鲁晓兵.,...&Wang, Tianju.(2025).Linear stability and numerical analysis of gas hydrate dissociation in hydrate bearing sediments.APPLIED OCEAN RESEARCH,154,7. |
| MLA | 张岩,et al."Linear stability and numerical analysis of gas hydrate dissociation in hydrate bearing sediments".APPLIED OCEAN RESEARCH 154(2025):7. |
入库方式： OAI收割
来源：力学研究所
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