Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells
Enhanced Geothermal System (EGS) are developed using various stimulation technologies to improve the production of heat energy from hot dry rock (HDR) that has ultra-low permeability. In this study, a horizontal EGS well design with partially bridging multistage hydraulic fractures is presented. Bas...
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International Geothermal Association
2020
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ftgriffithuniv:oai:research-repository.griffith.edu.au:10072/422755 2024-06-23T07:54:02+00:00 Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells Yu, Pengliang Dempsey, David Archer, Rosalind 2020-10-24 to 2020-10-27 Reyjavik, Iceland 2020 http://hdl.handle.net/10072/422755 unknown International Geothermal Association Proceedings World Geothermal Congress 2020+1 World Geothermal Congress 2020+1 Yu, P; Dempsey, D; Archer, R, Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells, Proceedings World Geothermal Congress 2020+1, 2020 https://www.lovegeothermal.org/cpdb/record_detail.php?id=34622 http://hdl.handle.net/10072/422755 open access Petroleum and reservoir engineering Conference output 2020 ftgriffithuniv 2024-05-29T00:14:00Z Enhanced Geothermal System (EGS) are developed using various stimulation technologies to improve the production of heat energy from hot dry rock (HDR) that has ultra-low permeability. In this study, a horizontal EGS well design with partially bridging multistage hydraulic fractures is presented. Based on the proposed design, a semi-analytical model for temperature is derived assuming bi-linear heat transfer in the fractures and stimulated reservoir volume (SRV). The model considers heat conduction and advection in the SRV, and, depending on the number and spacing of fractures, can be used to optimize EGS design. A 3D numerical model is also developed to validate the semi-analytical model and test geometry effects. The numerical model is constructed in the COMSOL finite element solver and compared to a fully bridging hydraulic fracture design. The results show that the partially bridging design can obtain a longer period of high temperature production, delaying thermal breakthrough by forcing water to traverse the SRV. No Full Text Conference Object Iceland Griffith University: Griffith Research Online |
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Griffith University: Griffith Research Online |
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topic |
Petroleum and reservoir engineering |
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Petroleum and reservoir engineering Yu, Pengliang Dempsey, David Archer, Rosalind Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells |
topic_facet |
Petroleum and reservoir engineering |
description |
Enhanced Geothermal System (EGS) are developed using various stimulation technologies to improve the production of heat energy from hot dry rock (HDR) that has ultra-low permeability. In this study, a horizontal EGS well design with partially bridging multistage hydraulic fractures is presented. Based on the proposed design, a semi-analytical model for temperature is derived assuming bi-linear heat transfer in the fractures and stimulated reservoir volume (SRV). The model considers heat conduction and advection in the SRV, and, depending on the number and spacing of fractures, can be used to optimize EGS design. A 3D numerical model is also developed to validate the semi-analytical model and test geometry effects. The numerical model is constructed in the COMSOL finite element solver and compared to a fully bridging hydraulic fracture design. The results show that the partially bridging design can obtain a longer period of high temperature production, delaying thermal breakthrough by forcing water to traverse the SRV. No Full Text |
format |
Conference Object |
author |
Yu, Pengliang Dempsey, David Archer, Rosalind |
author_facet |
Yu, Pengliang Dempsey, David Archer, Rosalind |
author_sort |
Yu, Pengliang |
title |
Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells |
title_short |
Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells |
title_full |
Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells |
title_fullStr |
Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells |
title_full_unstemmed |
Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells |
title_sort |
heat extraction analysis of multi-stage hydraulic fracturing doublet horizontal egs wells |
publisher |
International Geothermal Association |
publishDate |
2020 |
url |
http://hdl.handle.net/10072/422755 |
op_coverage |
2020-10-24 to 2020-10-27 Reyjavik, Iceland |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Proceedings World Geothermal Congress 2020+1 World Geothermal Congress 2020+1 Yu, P; Dempsey, D; Archer, R, Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells, Proceedings World Geothermal Congress 2020+1, 2020 https://www.lovegeothermal.org/cpdb/record_detail.php?id=34622 http://hdl.handle.net/10072/422755 |
op_rights |
open access |
_version_ |
1802645968340910080 |