Numerical analysis of the production behaviors and geomechanical responses during natural gas hydrate production by vertical wells fracturing
文献类型：期刊论文
| 作者 | Hui, Chengyu1; Zhang, Yiqun1,2; Wu, Xiaoya3; Zhang, Panpan4; Li, Gensheng2,3; Lu, Jingsheng5; Zhang, Bo6 |
| 刊名 | ENERGY
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 292页码:15 |
| 关键词 | Natural gas hydrate Vertical well fracturing Production characteristics Geomechanical response Reservoir properties |
| ISSN号 | 0360-5442 |
| DOI | 10.1016/j.energy.2024.130526 |
| 通讯作者 | Zhang, Yiqun(zhangyq@cup.edu.cn) |
| 英文摘要 | Trial extraction of natural gas hydrates has made great progress, but the available capacity is still orders of magnitude away from commercial development. Reservoir modification measures are a potential approach to achieve commercial recovery, and previous studies have demonstrated the feasibility of fracturing modification in hydrate reservoirs. The laboratory experimental research on hydrate production by vertical well fracturing combined with depressurization method has been carried out to prove the effectiveness of improving capacity. The presence of fractures enhances conductivity near the wellbore, thereby facilitating the propagation of pressure drops and augmenting thermal energy transfer. Whereas hydrate decomposition causes a reduction in reservoir strength and stiffness, potentially resulting in formation subsidence, wellbore failure, and other catastrophic events. Therefore, it is important to understand the geomechanical response for designing fracturing modifications in hydrate reservoirs. As a continuation of previous research, we constructed a coupled model of thermal-hydro-mechanical to investigate the production characteristics and geomechanical response patterns during vertical well fracturing combined with depressurization method to extract hydrates. The results show that fracturing modification helps to shorten the duration of "self-locking effect" and improve the gas -water ratio of gas hydrate extraction. Fractures induces the stress concentration near the wellbore, exacerbating both the subsidence and uplift of caprocks. Under the condition of controlled geological risk, priority should be given to extracting reservoirs with high saturation and high original permeability. |
| WOS关键词 | BEARING SEDIMENTS ; RESERVOIR ; STABILITY ; RECOVERY ; PROGRESS ; SITE ; SEA |
| 资助项目 | Marine Economy Development Foundation of Guangdong Province[GDNRC[2022]44] ; Scientific Research Foundation, National Natural Science Foundation of China[52174009] ; Scientific Research Foundation, National Natural Science Foundation of China[51827804] ; China University of Petroleum[462022YXZZ003] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001179364600001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Marine Economy Development Foundation of Guangdong Province ; Scientific Research Foundation, National Natural Science Foundation of China ; China University of Petroleum |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41205]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhang, Yiqun |
| 作者单位 | 1.China Univ Petr, Coll Safety & Ocean Engn, Beijing 102249, Peoples R China 2.China Univ Petr, State Key Lab Nat Gas Hydrate, Beijing 102249, Peoples R China 3.China Univ Petr, Coll Petr Engn, Beijing 102249, Peoples R China 4.Sinopec East China Oil & Gas Co, Nanjing 210019, Jiangsu, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 6.Univ Alberta, Dept Civil & Environm Engn, Edmonton, AB T6G 1H9, Canada |
| 推荐引用方式 GB/T 7714 | Hui, Chengyu,Zhang, Yiqun,Wu, Xiaoya,et al. Numerical analysis of the production behaviors and geomechanical responses during natural gas hydrate production by vertical wells fracturing[J]. ENERGY,2024,292:15. |
| APA | Hui, Chengyu.,Zhang, Yiqun.,Wu, Xiaoya.,Zhang, Panpan.,Li, Gensheng.,...&Zhang, Bo.(2024).Numerical analysis of the production behaviors and geomechanical responses during natural gas hydrate production by vertical wells fracturing.ENERGY,292,15. |
| MLA | Hui, Chengyu,et al."Numerical analysis of the production behaviors and geomechanical responses during natural gas hydrate production by vertical wells fracturing".ENERGY 292(2024):15. |
入库方式： OAI收割
来源：广州能源研究所
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