Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| A novel method of acquiring geothermal energy from unconsolidated sandstone reservoir by multi-directional wells deep borehole heat exchanger | |
Wang, Yanxin1; Bu, Xianbiao2
| |
| 2021-08-01 | |
| Source Publication | CASE STUDIES IN THERMAL ENGINEERING
 |
| ISSN | 2214-157X |
| Volume | 26Pages:8 |
| Corresponding Author | Bu, Xianbiao(buxb@ms.giec.ac.cn) |
| Abstract | The clogging problem during injection seriously limits the development and utilization of geothermal resources in unconsolidated sandstone area. Deep borehole heat exchanger can circumvent the problem of clogging, and however, high drilling and completion costs restrict its application. To reduce the drilling and completion costs and shorten the payback period, here a multi-directional wells deep borehole heat exchanger (MDWDBHE) system is proposed by sharing the vertical well and drilling directional wells at the lower part of vertical well with high extracted thermal output per meter well depth. The research result shows that for vertical well without directional well, the dynamic payback period is 18.55 years, while for MDWDBHE having 3 and 4 directional wells with the deflection point depth of 2000 m, the dynamic payback period is respectively 7.70 and 7.51 years, indicating that MDWDBHE can be popularized on a large scale just like the shallow ground source heat pump. |
| Keyword | Deep borehole heat exchanger Unconsolidated sandstone Directional wells Multi-directional wells deep borehole heat exchanger |
| DOI | 10.1016/j.csite.2021.101157 |
| WOS Keyword | ABANDONED OIL-WELLS ; PERFORMANCE ; EXTRACTION ; SIMULATION |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41972314] |
| WOS Research Area | Thermodynamics |
| Funding Organization | National Natural Science Foundation of China |
| WOS Subject | Thermodynamics |
| WOS ID | WOS:000672605000010 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/33455 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Bu, Xianbiao |
| Affiliation | 1.Sinopec Star Petr Co LTD, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Yanxin,Bu, Xianbiao. A novel method of acquiring geothermal energy from unconsolidated sandstone reservoir by multi-directional wells deep borehole heat exchanger[J]. CASE STUDIES IN THERMAL ENGINEERING,2021,26:8. |
| APA | Wang, Yanxin,&Bu, Xianbiao.(2021).A novel method of acquiring geothermal energy from unconsolidated sandstone reservoir by multi-directional wells deep borehole heat exchanger.CASE STUDIES IN THERMAL ENGINEERING,26,8. |
| MLA | Wang, Yanxin,et al."A novel method of acquiring geothermal energy from unconsolidated sandstone reservoir by multi-directional wells deep borehole heat exchanger".CASE STUDIES IN THERMAL ENGINEERING 26(2021):8. |
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