Analysis on a five-spot well for enhancing energy recovery from silty natural gas hydrate deposits in the South China Sea
文献类型：期刊论文
| 作者 | Gu, Yuhang1; Li, Shuaijun1; Song, Ziyang1; Lu, Hongfeng2,3; Xu, Chenlu2,3; Sun, Jiaxin4; Wang, Yi5; Li, Xiao-sen5; Linga, Praveen6; Yin, Zhenyuan1 |
| 刊名 | APPLIED ENERGY
 |
| 出版日期 | 2024-12-15 |
| 卷号 | 376页码:18 |
| 关键词 | Natural gas hydrate Five-spot well Energy recovery Depressurization Gas production enhancement Sensitivity analysis |
| ISSN号 | 0306-2619 |
| DOI | 10.1016/j.apenergy.2024.124237 |
| 通讯作者 | Yin, Zhenyuan(zyyin@sz.tsinghua.edu.cn) |
| 英文摘要 | The five-spot well is a promising technique for enhancing the inherent low gas production rate from silty natural gas hydrate (NGH) reservoirs with low permeability in the South China Sea (SCS). However, the production characteristics and the responses to key geological and engineering factors are still unclear and warrants investigation. Herein, we first establish a three-dimensional reservoir model based on the SH2 NGH deposits at SCS with the implementation of a five-spot well. We systematically examine the gas production enhancement effect and the unexpected well-to-well interaction induced by long-term depressurization. A sensitivity analysis on the effects of bottomhole pressure (Pbtm), permeability (k) and hydrate saturation (SH) is conducted to elucidate the key factors controlling the gas production enhancement. Our results reveal that the five-spot well significantly improves the gas productivity with cumulative gas production increased to 4.12 times that of a single well over 10 years. The well interference on gas production is not significant in the early stage but becomes more significant as depressurization sustains. Due to the relatively slow pressure propagation at the inner well, contribution to gas production from the inner well decreases over time while the outer wells increase. Based on the sensitivity analysis, gas production increases with decreasing P btm , increasing k , and decreasing SH H with P btm and k as the key controlling factors. The findings provide valuable design basis for the adoption of a multi-well system in enhancing gas production for targeted NGH reservoirs in the next field production trial at SCS. |
| WOS关键词 | METHANE-HYDRATE ; SIMULATION ; RESERVOIR ; MEDIA ; MODEL |
| 资助项目 | Guangdong Basic and Applied Basic Research Foundation[2022A1515011902] ; Guangdong Basic and Applied Basic Research Foundation[2024A1515012333] ; Key Program of Marine Economy Development (Six Marine Industries) Special Foundation of Department of Natural Resources of Guangdong Province[GDNRC[2022]43] ; Key Program of Marine Economy Development (Six Marine Industries) Special Foundation of Department of Natural Resources of Guangdong Province[GDNRC[2024]48] ; Guangdong Pearl River Talent Program[2021QN02H836] ; Key Projects of National Engineering Research Center for Gas Hydrate Exploration and Development[NERCZ[202401]] ; Shenzhen Key Laboratory of Advanced Technology for Marine Ecology[ZDSYS20230626091459009] ; Guangzhou Science and Technology Program[202206050002] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001301639800001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Guangdong Basic and Applied Basic Research Foundation ; Key Program of Marine Economy Development (Six Marine Industries) Special Foundation of Department of Natural Resources of Guangdong Province ; Guangdong Pearl River Talent Program ; Key Projects of National Engineering Research Center for Gas Hydrate Exploration and Development ; Shenzhen Key Laboratory of Advanced Technology for Marine Ecology ; Guangzhou Science and Technology Program |
| 源URL | [http://ir.giec.ac.cn/handle/344007/42819]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Yin, Zhenyuan |
| 作者单位 | 1.Tsinghua Univ, Inst Ocean Engn, Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China 2.Natl Engn Res Ctr Gas Hydrate Explorat & Dev, Guangzhou 510075, Peoples R China 3.Minist Nat Resources, Guangzhou Marine Geol Survey, Guangzhou 510075, Peoples R China 4.China Univ Geosci, Fac Engn, Natl Ctr Int Res Deep Earth Drilling & Resource D, Wuhan 430074, Hubei, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 6.Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117585, Singapore |
| 推荐引用方式 GB/T 7714 | Gu, Yuhang,Li, Shuaijun,Song, Ziyang,et al. Analysis on a five-spot well for enhancing energy recovery from silty natural gas hydrate deposits in the South China Sea[J]. APPLIED ENERGY,2024,376:18. |
| APA | Gu, Yuhang.,Li, Shuaijun.,Song, Ziyang.,Lu, Hongfeng.,Xu, Chenlu.,...&Yin, Zhenyuan.(2024).Analysis on a five-spot well for enhancing energy recovery from silty natural gas hydrate deposits in the South China Sea.APPLIED ENERGY,376,18. |
| MLA | Gu, Yuhang,et al."Analysis on a five-spot well for enhancing energy recovery from silty natural gas hydrate deposits in the South China Sea".APPLIED ENERGY 376(2024):18. |
入库方式： OAI收割
来源：广州能源研究所
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