Estimating theoretical stress regime for engineered geothermal energy systems in an arctic community (Kuujjuaq, Canada)

IF 2 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY
Mafalda M. Miranda, Jasmin Raymond, Chrystel Dezayes
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引用次数: 3

Abstract

In remote northern regions, lacking deep geothermal exploratory boreholes, a theoretical approach to provide a first-order estimate of the stress regime seems a useful tool. Literature data was used in this context to evaluate the orientation of the stress components and empirical relationships were applied to calculate their magnitude in a community of Nunavik, northern Quebec. A Monte Carlo-based sensitivity analysis was carried out due to the uncertainty of the input parameters. Mohr–Coulomb friction and slip tendency analyses were additionally undertaken to assess the stress state and potential reactivation of existing fractures. The results highlight how the poor knowledge of the stress field has an important impact on the design and development of engineered geothermal energy systems in the Canadian off-grid community of Kuujjuaq.
北极社区工程地热能系统的理论应力状态估算(Kuujjuaq, Canada)
在缺乏深地热勘探钻孔的偏远北部地区,提供应力状态一阶估计的理论方法似乎是一个有用的工具。在此背景下使用文献数据来评估应力分量的方向,并应用经验关系来计算魁北克省北部努纳维克社区的应力分量大小。由于输入参数的不确定性,进行了基于蒙特卡罗的灵敏度分析。此外,还进行了Mohr-Coulomb摩擦和滑移趋势分析,以评估应力状态和现有裂缝的潜在重新激活。这些结果突出了应力场知识的贫乏如何对加拿大Kuujjuaq离网社区工程地热能系统的设计和开发产生重要影响。
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来源期刊
Comptes Rendus Geoscience
Comptes Rendus Geoscience 地学-地球科学综合
CiteScore
2.80
自引率
14.30%
发文量
68
审稿时长
5.9 weeks
期刊介绍: Created in 1835 by physicist François Arago, then Permanent Secretary, the journal Comptes Rendus de l''Académie des sciences allows researchers to quickly make their work known to the international scientific community. It is divided into seven titles covering the range of scientific research fields: Mathematics, Mechanics, Chemistry, Biology, Geoscience, Physics and Palevol. Each series is led by an editor-in-chief assisted by an editorial committee. Submitted articles are reviewed by two scientists with recognized competence in the field concerned. They can be notes, announcing significant new results, as well as review articles, allowing for a fine-tuning, or even proceedings of symposia and other thematic issues, under the direction of invited editors, French or foreign.
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