A new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions

Abstract The water temperature at the outlet of the production well is an important index for evaluating efficient geothermal exploration. The arrangement mode of injection wells and production wells directly affects the temperature distribution of the production wells. However, there is little info...

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Autores principales:	Junyi Gao, Qipeng Shi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/50c3089f43ab4c6687b08e9fe569cd9a
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spelling	oai:doaj.org-article:50c3089f43ab4c6687b08e9fe569cd9a2021-11-28T12:21:50ZA new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions10.1038/s41598-021-02286-z2045-2322https://doaj.org/article/50c3089f43ab4c6687b08e9fe569cd9a2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02286-zhttps://doaj.org/toc/2045-2322Abstract The water temperature at the outlet of the production well is an important index for evaluating efficient geothermal exploration. The arrangement mode of injection wells and production wells directly affects the temperature distribution of the production wells. However, there is little information about the effect of different injection and production wells on the temperature field of production wells and rock mass, so it is critical to solve this problem. To study the influence mechanism of geothermal well arrangement mode on thermal exploration efficiency, the conceptual model of four geothermal wells is constructed by using discrete element software, and the influence law of different arrangement modes of four geothermal wells on rock mass temperature distribution is calculated and analyzed. The results indicated that the maximum water temperature at the outlet of the production well was 84.0 °C due to the thermal superposition effect of the rock mass between the adjacent injection wells and between the adjacent production wells. Inversely, the minimum water temperature at the outlet of the production well was 50.4 °C, which was determined by the convection heat transfer between the water flow and the rock between the interval injection wells and the interval production wells. When the position of the model injection well and production well was adjusted, the isothermal number line of rock mass was almost the same in value, but the direction of water flow and heat transfer was opposite. The study presented a novel mathematical modeling approach for calculating thermal exploration efficiency under various geothermal well layout conditions.Junyi GaoQipeng ShiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Junyi Gao Qipeng Shi A new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions
description	Abstract The water temperature at the outlet of the production well is an important index for evaluating efficient geothermal exploration. The arrangement mode of injection wells and production wells directly affects the temperature distribution of the production wells. However, there is little information about the effect of different injection and production wells on the temperature field of production wells and rock mass, so it is critical to solve this problem. To study the influence mechanism of geothermal well arrangement mode on thermal exploration efficiency, the conceptual model of four geothermal wells is constructed by using discrete element software, and the influence law of different arrangement modes of four geothermal wells on rock mass temperature distribution is calculated and analyzed. The results indicated that the maximum water temperature at the outlet of the production well was 84.0 °C due to the thermal superposition effect of the rock mass between the adjacent injection wells and between the adjacent production wells. Inversely, the minimum water temperature at the outlet of the production well was 50.4 °C, which was determined by the convection heat transfer between the water flow and the rock between the interval injection wells and the interval production wells. When the position of the model injection well and production well was adjusted, the isothermal number line of rock mass was almost the same in value, but the direction of water flow and heat transfer was opposite. The study presented a novel mathematical modeling approach for calculating thermal exploration efficiency under various geothermal well layout conditions.
format	article
author	Junyi Gao Qipeng Shi
author_facet	Junyi Gao Qipeng Shi
author_sort	Junyi Gao
title	A new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions
title_short	A new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions
title_full	A new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions
title_fullStr	A new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions
title_full_unstemmed	A new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions
title_sort	new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/50c3089f43ab4c6687b08e9fe569cd9a
work_keys_str_mv	AT junyigao anewmathematicalmodelingapproachforthermalexplorationefficiencyunderdifferentgeothermalwelllayoutconditions AT qipengshi anewmathematicalmodelingapproachforthermalexplorationefficiencyunderdifferentgeothermalwelllayoutconditions AT junyigao newmathematicalmodelingapproachforthermalexplorationefficiencyunderdifferentgeothermalwelllayoutconditions AT qipengshi newmathematicalmodelingapproachforthermalexplorationefficiencyunderdifferentgeothermalwelllayoutconditions
_version_	1718408011834195968

A new mathematical modeling approach for thermal exploration efficiency under different geothermal well layout conditions

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