Study on the Settlement Characteristics of Hydrate Bearing Sediment Caused by Gas Production with the Depressurization Method
文献类型：期刊论文
| 作者 | Li, Lijia1; Li, Xiao-Sen2; Wang, Yi2; Huang, Xiaoliang1; Qi, Zhilin1; Chen, Zhu3 |
| 刊名 | ENERGY & FUELS
 |
| 出版日期 | 2024-03-18 |
| 页码 | 12 |
| ISSN号 | 0887-0624 |
| DOI | 10.1021/acs.energyfuels.3c04197 |
| 通讯作者 | Li, Xiao-Sen(lixs@ms.giec.ac.cn) |
| 英文摘要 | The settlement of the reservoir caused by gas production from the hydrate reservoir is closely related to the safety of hydrate production. However, the settlement characteristics of a hydrate reservoir under a triaxial stress state are still unclear. In this study, the settlement characteristics of hydrate-bearing sediment (HBS) during the gas production process were experimentally investigated under a triaxial stress state. Additionally, numerical simulations were performed using the thermo-hydro-chemomechanical (THMC) fully coupled model for hydrate production implemented in COMSOL Multiphysics. Results show that the failure strength of the hydrate-bearing specimen increases significantly when hydrate saturation (S-h) is raised from 0 to 0.19 and 0.37 to 0.57, and only a slight change of failure strength is observed when S-h is raised from 0.19 to 0.37. The secant modulus and cohesion are positively correlated with hydrate saturation, and the internal friction angle is negatively correlated with hydrate saturation. In the gas production process, the settlement of the specimens can be divided into three stages. The first stage is characterized by rapid settling caused by free gas discharge, which has the largest settlement amount. Then, a relatively gentle settling stage is caused by hydrate decomposition. In the final stage, with continuous gas production, the settlement of specimens remains constant. A specimen with lower S-h or production pressure results in a greater settlement at the first stage. A larger settlement occurs at the second stage for a high S-h specimen. The confining pressure has little effect on the HBS |
| WOS关键词 | METHANE HYDRATE ; MECHANICAL-BEHAVIOR ; THERMAL-STIMULATION ; POROUS-MEDIA ; SHENHU AREA ; STRENGTH ; DISSOCIATION ; STIFFNESS ; WELLBORE ; ENERGY |
| 资助项目 | National Natural Science Foundation of China[52304208] ; National Natural Science Foundation of China[52122602] ; National Natural Science Foundation of China[2021YFC2800905-02] ; State Key Research Development Program of China[[2022]43] ; Special Project for Marine Economy Development of Guangdong Province[2019B030302004] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001187270200001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Research Development Program of China ; Special Project for Marine Economy Development of Guangdong Province ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41115]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Xiao-Sen |
| 作者单位 | 1.Chongqing Univ Sci Technol, Chongqing 401331, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Guangdong Ocean Assoc, Guangzhou 510220, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Lijia,Li, Xiao-Sen,Wang, Yi,et al. Study on the Settlement Characteristics of Hydrate Bearing Sediment Caused by Gas Production with the Depressurization Method[J]. ENERGY & FUELS,2024:12. |
| APA | Li, Lijia,Li, Xiao-Sen,Wang, Yi,Huang, Xiaoliang,Qi, Zhilin,&Chen, Zhu.(2024).Study on the Settlement Characteristics of Hydrate Bearing Sediment Caused by Gas Production with the Depressurization Method.ENERGY & FUELS,12. |
| MLA | Li, Lijia,et al."Study on the Settlement Characteristics of Hydrate Bearing Sediment Caused by Gas Production with the Depressurization Method".ENERGY & FUELS (2024):12. |
入库方式： OAI收割
来源：广州能源研究所
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