Closed-Loop Systems for Geothermal Energy Exploitation from Hydrocarbon Wells: An Italian Case Study

Geothermal energy resources associated with disused hydrocarbon wells in Italian oilfields represent a considerable source of renewable energy. Using the information available on Italian hydrocarbon wells and on-field temperatures, two simplified closed-loop-type systems models were implemented in t...

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Main Author: Martina Gizzi
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/22/10551
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author Martina Gizzi
author_facet Martina Gizzi
author_sort Martina Gizzi
collection DOAJ
description Geothermal energy resources associated with disused hydrocarbon wells in Italian oilfields represent a considerable source of renewable energy. Using the information available on Italian hydrocarbon wells and on-field temperatures, two simplified closed-loop-type systems models were implemented in the Python environment and applied to a selected hydrocarbon well (Trecate4) located inside the Italian Villafortuna–Trecate field (Northwestern Italy). Considering the maximum extracted working fluid temperatures, Coaxial WBHE turned out to be a better performing technology than the U-tube version. The obtained outflow temperatures of the working fluid at the wellhead for Coaxial and U-tube WBHEs of 98.6 °C and 84 °C, respectively, are both potentially exploitable for ensuring a multi-variant and comprehensive use of the resource through its application in sectors such as the food industry, horticultural and flower fields.
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spelling doaj.art-94d92bbaf20c49269145f5e4c82d03d12023-11-22T22:15:27ZengMDPI AGApplied Sciences2076-34172021-11-0111221055110.3390/app112210551Closed-Loop Systems for Geothermal Energy Exploitation from Hydrocarbon Wells: An Italian Case StudyMartina Gizzi0Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, C.so Duca Degli Abruzzi 24, 10129 Torino, ItalyGeothermal energy resources associated with disused hydrocarbon wells in Italian oilfields represent a considerable source of renewable energy. Using the information available on Italian hydrocarbon wells and on-field temperatures, two simplified closed-loop-type systems models were implemented in the Python environment and applied to a selected hydrocarbon well (Trecate4) located inside the Italian Villafortuna–Trecate field (Northwestern Italy). Considering the maximum extracted working fluid temperatures, Coaxial WBHE turned out to be a better performing technology than the U-tube version. The obtained outflow temperatures of the working fluid at the wellhead for Coaxial and U-tube WBHEs of 98.6 °C and 84 °C, respectively, are both potentially exploitable for ensuring a multi-variant and comprehensive use of the resource through its application in sectors such as the food industry, horticultural and flower fields.https://www.mdpi.com/2076-3417/11/22/10551renewable energygeothermal energymature oilfieldabandoned hydrocarbon wellwellbore heat exchanger
spellingShingle Martina Gizzi
Closed-Loop Systems for Geothermal Energy Exploitation from Hydrocarbon Wells: An Italian Case Study
Applied Sciences
renewable energy
geothermal energy
mature oilfield
abandoned hydrocarbon well
wellbore heat exchanger
title Closed-Loop Systems for Geothermal Energy Exploitation from Hydrocarbon Wells: An Italian Case Study
title_full Closed-Loop Systems for Geothermal Energy Exploitation from Hydrocarbon Wells: An Italian Case Study
title_fullStr Closed-Loop Systems for Geothermal Energy Exploitation from Hydrocarbon Wells: An Italian Case Study
title_full_unstemmed Closed-Loop Systems for Geothermal Energy Exploitation from Hydrocarbon Wells: An Italian Case Study
title_short Closed-Loop Systems for Geothermal Energy Exploitation from Hydrocarbon Wells: An Italian Case Study
title_sort closed loop systems for geothermal energy exploitation from hydrocarbon wells an italian case study
topic renewable energy
geothermal energy
mature oilfield
abandoned hydrocarbon well
wellbore heat exchanger
url https://www.mdpi.com/2076-3417/11/22/10551
work_keys_str_mv AT martinagizzi closedloopsystemsforgeothermalenergyexploitationfromhydrocarbonwellsanitaliancasestudy