Development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirs
Abstract Based on a comprehensive review of domestic and foreign literature, this article discusses the technical difficulties and development status of enhanced geothermal system (EGS) concerning the thermal energy extraction of deep hot dry rock (HDR) reservoirs and proposes suggestions for the re...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-09-01
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| Series: | Deep Underground Science and Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/dug2.12080 |
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| _version_ | 1846167980331761664 |
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| author | Diquan Li Ning Li Jing Jia Hongguang Yu Qinghu Fan Lichang Wang Ahmed Mohsen |
| author_facet | Diquan Li Ning Li Jing Jia Hongguang Yu Qinghu Fan Lichang Wang Ahmed Mohsen |
| author_sort | Diquan Li |
| collection | DOAJ |
| description | Abstract Based on a comprehensive review of domestic and foreign literature, this article discusses the technical difficulties and development status of enhanced geothermal system (EGS) concerning the thermal energy extraction of deep hot dry rock (HDR) reservoirs and proposes suggestions for the research focus of numerical simulation of HDR reservoir stimulation. Additionally, it summarizes the existing methods and mainstream working fluids for HDR reservoir stimulation. The article emphasizes the significance of factors such as well location, production well depth, artificial fracture orientation, and complexity in optimizing the thermal production efficiency of the EGS. Furthermore, this article delves into a detailed discussion on the influence of fracture spacing, fracture permeability, fracture length, fluid injection rate, and injected fluid temperature on the performance of the EGS. In light of the thermo‐hydro‐mechanical coupling challenges associated with high‐temperature reservoirs, it is suggested that future research efforts should focus on investigating the impact of thermo‐induced stresses on the stability of the artificial fracture network within the EGS during long‐term (>30 years) circulation of hot and cold fluids. |
| format | Article |
| id | doaj-art-80fef1bf0e964486bccc7cc68e2db1f5 |
| institution | Kabale University |
| issn | 2097-0668 2770-1328 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Deep Underground Science and Engineering |
| spelling | doaj-art-80fef1bf0e964486bccc7cc68e2db1f52024-11-14T12:11:23ZengWileyDeep Underground Science and Engineering2097-06682770-13282024-09-013331732510.1002/dug2.12080Development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirsDiquan Li0Ning Li1Jing Jia2Hongguang Yu3Qinghu Fan4Lichang Wang5Ahmed Mohsen6School of Geosciences and Info‐Physics Central South University Changsha ChinaSchool of Geosciences and Info‐Physics Central South University Changsha ChinaSchool of Geosciences and Info‐Physics Central South University Changsha ChinaDownhole Service Company CNPC XiBu Drilling Engineering Company Limited Karamay ChinaDownhole Service Company CNPC XiBu Drilling Engineering Company Limited Karamay ChinaSchool of Geosciences and Info‐Physics Central South University Changsha ChinaSchool of Geosciences and Info‐Physics Central South University Changsha ChinaAbstract Based on a comprehensive review of domestic and foreign literature, this article discusses the technical difficulties and development status of enhanced geothermal system (EGS) concerning the thermal energy extraction of deep hot dry rock (HDR) reservoirs and proposes suggestions for the research focus of numerical simulation of HDR reservoir stimulation. Additionally, it summarizes the existing methods and mainstream working fluids for HDR reservoir stimulation. The article emphasizes the significance of factors such as well location, production well depth, artificial fracture orientation, and complexity in optimizing the thermal production efficiency of the EGS. Furthermore, this article delves into a detailed discussion on the influence of fracture spacing, fracture permeability, fracture length, fluid injection rate, and injected fluid temperature on the performance of the EGS. In light of the thermo‐hydro‐mechanical coupling challenges associated with high‐temperature reservoirs, it is suggested that future research efforts should focus on investigating the impact of thermo‐induced stresses on the stability of the artificial fracture network within the EGS during long‐term (>30 years) circulation of hot and cold fluids.https://doi.org/10.1002/dug2.12080enhanced geothermal systemhot dry rock reservoirthermoelastic stressthermo‐hydro‐mechanical coupling |
| spellingShingle | Diquan Li Ning Li Jing Jia Hongguang Yu Qinghu Fan Lichang Wang Ahmed Mohsen Development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirs Deep Underground Science and Engineering enhanced geothermal system hot dry rock reservoir thermoelastic stress thermo‐hydro‐mechanical coupling |
| title | Development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirs |
| title_full | Development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirs |
| title_fullStr | Development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirs |
| title_full_unstemmed | Development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirs |
| title_short | Development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirs |
| title_sort | development status and research recommendations for thermal extraction technology in deep hot dry rock reservoirs |
| topic | enhanced geothermal system hot dry rock reservoir thermoelastic stress thermo‐hydro‐mechanical coupling |
| url | https://doi.org/10.1002/dug2.12080 |
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