Influence Factors on EGS Geothermal Reservoir Extraction Performance

The heat extraction performance of the enhanced geothermal system is simulated by using COMSOL software. The effects of six factors, such as the thermal conductivity of heat reservoir, matrix permeability, fracture width, injection temperature, injection flow rate, and the number of wells, on the he...

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Main Authors: Haitao Wang, Lijuan Wang, Zude Cheng
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2022/5174456
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author Haitao Wang
Lijuan Wang
Zude Cheng
author_facet Haitao Wang
Lijuan Wang
Zude Cheng
author_sort Haitao Wang
collection DOAJ
description The heat extraction performance of the enhanced geothermal system is simulated by using COMSOL software. The effects of six factors, such as the thermal conductivity of heat reservoir, matrix permeability, fracture width, injection temperature, injection flow rate, and the number of wells, on the heat extraction performance of EGS heat reservoir for 40 years are analyzed. The results show that the matrix permeability and injection flow are the main factors affecting the heat production performance of the EGS geothermal reservoir, while the thermal conductivity, fracture width, and injection temperature have little effect on the heat production performance of the EGS geothermal reservoir. Although increasing the number of production wells can improve the uneven distribution of the flow field to improve the system heat performance, taking into account the existing drilling technology and cost, the cost is higher, and the two-well system is still the basic form of absorbing rock heat.
format Article
id doaj-art-4ac52c0f9c2d4fd7b2279529b38eeb07
institution Kabale University
issn 1468-8123
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Geofluids
spelling doaj-art-4ac52c0f9c2d4fd7b2279529b38eeb072025-08-20T03:36:35ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/5174456Influence Factors on EGS Geothermal Reservoir Extraction PerformanceHaitao Wang0Lijuan Wang1Zude Cheng2School of Environment and Energy EngineeringSchool of Environment and Energy EngineeringSchool of Environment and Energy EngineeringThe heat extraction performance of the enhanced geothermal system is simulated by using COMSOL software. The effects of six factors, such as the thermal conductivity of heat reservoir, matrix permeability, fracture width, injection temperature, injection flow rate, and the number of wells, on the heat extraction performance of EGS heat reservoir for 40 years are analyzed. The results show that the matrix permeability and injection flow are the main factors affecting the heat production performance of the EGS geothermal reservoir, while the thermal conductivity, fracture width, and injection temperature have little effect on the heat production performance of the EGS geothermal reservoir. Although increasing the number of production wells can improve the uneven distribution of the flow field to improve the system heat performance, taking into account the existing drilling technology and cost, the cost is higher, and the two-well system is still the basic form of absorbing rock heat.http://dx.doi.org/10.1155/2022/5174456
spellingShingle Haitao Wang
Lijuan Wang
Zude Cheng
Influence Factors on EGS Geothermal Reservoir Extraction Performance
Geofluids
title Influence Factors on EGS Geothermal Reservoir Extraction Performance
title_full Influence Factors on EGS Geothermal Reservoir Extraction Performance
title_fullStr Influence Factors on EGS Geothermal Reservoir Extraction Performance
title_full_unstemmed Influence Factors on EGS Geothermal Reservoir Extraction Performance
title_short Influence Factors on EGS Geothermal Reservoir Extraction Performance
title_sort influence factors on egs geothermal reservoir extraction performance
url http://dx.doi.org/10.1155/2022/5174456
work_keys_str_mv AT haitaowang influencefactorsonegsgeothermalreservoirextractionperformance
AT lijuanwang influencefactorsonegsgeothermalreservoirextractionperformance
AT zudecheng influencefactorsonegsgeothermalreservoirextractionperformance