Numerical assessment of the geothermal resource potential of the Charlevoix meteorite impact crater, Canada

IF 3.5 2区工程技术 Q3 ENERGY & FUELS

Geothermics Pub Date : 2024-12-25 DOI:10.1016/j.geothermics.2024.103243

María José Oviedo , Jasmin Raymond , Daniela Blessent , Stéphanie Larmagnat

{"title":"Numerical assessment of the geothermal resource potential of the Charlevoix meteorite impact crater, Canada","authors":"María José Oviedo , Jasmin Raymond , Daniela Blessent , Stéphanie Larmagnat","doi":"10.1016/j.geothermics.2024.103243","DOIUrl":null,"url":null,"abstract":"<div><div>Geothermal targets may be found in naturally fractured rocks of meteorite impact craters hosting low temperature resources. We therefore conducted a study with the objective of evaluating the geothermal potential of the 400 million year old Charlevoix impact crater in Quebec (Canada). Finite element simulations of steady state groundwater flow and heat transfer were made based on field characterization that allowed for the evaluation of rock thermohydraulic properties. Simulations provided a definition of the temperature field in cross-sections of the crater up to 10 km depth. Results allowed quantification of the impact of the deep groundwater recharge, the rock thermal conductivity and the Earth heat flow on the temperature distribution at depth. The calculated geothermal gradient inside the Charlevoix crater reaches 31 °C km<sup>-1</sup> in the most favorable areas. The average temperature at 3 km depth was 70 °C inside the crater and was higher compared to outside the crater. This suggests greater potential for low-temperature geothermal direct use in the crater.</div></div>","PeriodicalId":55095,"journal":{"name":"Geothermics","volume":"127 ","pages":"Article 103243"},"PeriodicalIF":3.5000,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geothermics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0375650524003298","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

Geothermal targets may be found in naturally fractured rocks of meteorite impact craters hosting low temperature resources. We therefore conducted a study with the objective of evaluating the geothermal potential of the 400 million year old Charlevoix impact crater in Quebec (Canada). Finite element simulations of steady state groundwater flow and heat transfer were made based on field characterization that allowed for the evaluation of rock thermohydraulic properties. Simulations provided a definition of the temperature field in cross-sections of the crater up to 10 km depth. Results allowed quantification of the impact of the deep groundwater recharge, the rock thermal conductivity and the Earth heat flow on the temperature distribution at depth. The calculated geothermal gradient inside the Charlevoix crater reaches 31 °C km^-1 in the most favorable areas. The average temperature at 3 km depth was 70 °C inside the crater and was higher compared to outside the crater. This suggests greater potential for low-temperature geothermal direct use in the crater.

查看原文本刊更多论文

加拿大Charlevoix陨石撞击坑地热资源潜力的数值评估

地热目标可以在具有低温资源的陨石撞击坑的自然破裂岩石中找到。因此，我们进行了一项研究，目的是评估魁北克（加拿大）4亿年历史的Charlevoix陨石坑的地热潜力。在现场表征的基础上，进行了稳态地下水流动和传热的有限元模拟，以评估岩石的热水力特性。模拟提供了深达10公里的陨石坑横截面温度场的定义。结果可以量化地下水补给、岩石导热系数和地球热流对深度温度分布的影响。经计算，Charlevoix陨石坑内最有利区域的地温梯度达到31°C km-1。坑内3公里深度的平均温度为70°C，比坑外要高。这表明在火山口直接利用低温地热的可能性更大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Geothermics 工程技术-地球科学综合

CiteScore

7.70

自引率

15.40%

发文量

237

审稿时长

4.5 months

期刊介绍： Geothermics is an international journal devoted to the research and development of geothermal energy. The International Board of Editors of Geothermics, which comprises specialists in the various aspects of geothermal resources, exploration and development, guarantees the balanced, comprehensive view of scientific and technological developments in this promising energy field. It promulgates the state of the art and science of geothermal energy, its exploration and exploitation through a regular exchange of information from all parts of the world. The journal publishes articles dealing with the theory, exploration techniques and all aspects of the utilization of geothermal resources. Geothermics serves as the scientific house, or exchange medium, through which the growing community of geothermal specialists can provide and receive information.