Controls on geothermal heat recovery from a hot sedimentary aquifer in Guardbridge, Scotland
Comerford, A. and Fraser-Harris, A. and Johnson, G. and McDermott, C. I. (2018) Controls on geothermal heat recovery from a hot sedimentary aquifer in Guardbridge, Scotland. Geothermics, 76. pp. 125-140. ISSN 0375-6505 (https://doi.org/10.1016/j.geothermics.2018.07.004)
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Abstract
Geothermal heat from Hot Sedimentary Aquifers represents a promising intermediate (30°C) resource for district heating systems. A key control on the geothermal productivity of these aquifers is the architecture of faults, which can significantly enhance or reduce the natural permeability of these systems. We present the first three-dimensional coupled groundwater flow and heat transport numerical model, combining multiple data from field mapping and fracture surveys, of two intersecting major fault systems in Central-East Scotland. This includes fault-zone fracture permeability modelling, depth-dependent permeability modelling, geo-mechanical facies assessment and heat productivity estimates for single well and multiple well extraction scenarios. Simulations indicate that with careful location of extraction wells within permeable fault systems, production is sustainable for over 50 years for multiple-well extraction scenarios in this region.
ORCID iDs
Comerford, A., Fraser-Harris, A., Johnson, G. ORCID: https://orcid.org/0000-0002-3151-5045 and McDermott, C. I.;-
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Item type: Article ID code: 66556 Dates: DateEvent1 November 2018Published17 July 2018Published Online3 July 2018AcceptedSubjects: Technology > Engineering (General). Civil engineering (General)
Science > GeologyDepartment: Faculty of Engineering > Civil and Environmental Engineering Depositing user: Pure Administrator Date deposited: 14 Jan 2019 15:51 Last modified: 15 Sep 2024 00:54 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/66556