Reuse of Oil Wells in Geothermal District Heating Networks: A Sustainable Opportunity for Cities of the Future

Claudio Alimonti (), Fabio Vitali and Davide Scrocca
Additional contact information
Claudio Alimonti: Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via Eu-dossiana 18, 00184 Roma, Italy
Fabio Vitali: Engie Italia S.p.A., Viale Giorgio Ribotta 31, 00144 Roma, Italy
Davide Scrocca: Istituto di Geologia Ambientale e Geoingegneria (IGAG), Consiglio Nazionale delle Ricerche (CNR), Piazzale Aldo Moro 5, 00185 Roma, Italy

Energies, 2023, vol. 17, issue 1, 1-20

Abstract: Climate change and the energy crisis forced industrialized countries to contain CO 2 emissions and use indigenous renewable energy sources. Geothermal energy undoubtedly has great potential, particularly thermal energy, given that 48% of the final energy consumption in the EU20 countries in 2021 was related to heating and cooling systems. The present study verifies and compares the feasibility of realizing district heating systems in two different contexts: (i) depleted hydrocarbon fields with the repurposing of existing hydrocarbon wells into geothermal wells and (ii) areas with documented geothermal resources. The two selected case studies are located, respectively, near Romentino (Northern Italy, province of Novara) and Tuscania (Central Italy, province of Viterbo). Following an assessment of the geothermal resources in the two selected case studies, specific methodological tools have been developed to evaluate the energy demand in the municipalities and determine the projects’ economics. Both case studies show positive economic indices assuming heat tariffs aligned with the values recorded in the 2020–2021 period. However, our results show how reusing hydrocarbon wells in geothermal wells constitutes an excellent opportunity to access geothermal resources, significantly reducing the necessary investment and the mining risk and strongly improving the economics of the projects.

Keywords: geothermal energy; district heating; oil well; circular economy; sustainability (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/17/1/169/pdf (application/pdf)
https://www.mdpi.com/1996-1073/17/1/169/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:17:y:2023:i:1:p:169-:d:1309079

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().