Legacy BGS geothermal models: theoretical potential 'heat-in-place' for the Upper Devonian in hot sedimentary aquifers in the Midland Valley of Scotland

This raster dataset shows the modelled P50 distribution of the theoretical potential 'heat-in-place' (HIP) across the combined Upper Devonian Kinnesswood Formation and Stratheden Group in the Midland Valley of Scotland (PJ/km2), at a resolution of 500 m x 500 m x 50 m. The HIP is calculated for resource temperatures greater than 50 °C (> 1400 m depth), which represents minimum temperature required for direct use of heat from hot sedimentary aquifer resources. The HIP represents the heat resource available in an aquifer according to the USGS definition described in e.g. Muffler and Cataldi (1978). Its calculation is part of the research published by Kearsey, T.I., Receveur, M. and Monaghan, A.A., 2024. Modelled hot sedimentary aquifer geothermal potential of Upper Devonian strata in the Midland Valley of Scotland. The model is presented with high uncertainty.

Date (Publication): 2024

Citation identifier: http://data.bgs.ac.uk/id/dataHolding/13608366

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Distributor
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Point of contact

Maintenance and update frequency: Not planned

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

UK Location (INSPIRE)
Geothermal energy
Sandstone reservoirs
Geothermal maps
Aquifers
Devonian

dataCentre

UK Location (INSPIRE)

Keywords

NERC_DDC

Access constraints: Other restrictions

Other constraints: Access constraints: no limitations.

Use constraints: License

Other constraints: Use constraints: this dataset is available to view under the Open Government Licence V3 ( https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) to encourage its use and re-use, subject to the following acknowledgement accompanying the reproduced BGS materials: 'Contains British Geological Survey materials © UKRI [year]'. Some of the data shown in the BGS view-only service layers are available to licence. The licence cost will generally be a licence administration fee, depending on the usage type and the area coverage of the dataset requested. Companies and other commercial organisations with an interest in reselling BGS data or developing value-added products and services based on BGS data will need a BGS data resellers licence. For more information, contact digitaldata@bgs.ac.uk.

Spatial representation type: Grid

Distance: 500 urn:ogc:def:uom:EPSG::9001

Language: English

Topic category

Geoscientific information

Geographic identifier: CENTRAL REGION (SCOTLAND) [id=147300]
British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979

Geographic identifier: Midland Valley Basin [id=1000334]
British Geological Survey Gazetteer: Geological gazetteer 2005

Begin date: 2024

End date: 2025

Unique resource identifier: OSGB 1936 / British National Grid (EPSG::27700)

Distribution format

Name	Version

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	enquiries@bgs.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	https://ukgtp.bgs.ac.uk	UK Geothermal Platform Web Map

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	https://ukgeothermalplatform.org	UK Geothermal Platform

Hierarchy level: Dataset

Other: dataset

Conformance result

Title: INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Explanation: See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Pass: No

Statement: The theoretical potential 'heat-in-place' (HIP) in the Upper Devonian formations of the Midland Valley of Scotland was calculated as part of a first regional-scale assessment of the deep geothermal potential of hot sedimentary aquifers in Scotland. The study considers the Kinnesswood Formation and Stratheden Group as the main target units, and includes the construction of an updated 3D geological model. The HIP was calculated for resource temperatures greater than 50 °C (minimum temperature required for direct-use applications of geothermal energy) using the 3DHIP tool (Piris et al., 2021). The tool is based on the USGS volumetric HIP method developed by Muffler and Cataldi (1978). It uses a Monte Carlo simulation to calculate the P50 probability distribution function for the HIP based on the P50 distribution of the reservoir volume, derived from the updated 3D geological model (depth and thickness of the Kinneswood Formation and Stratheden Group), gridded at an XYZ spatial resolution of 500 x 500 x 50 m, and the temperature distribution. Constant values for the mean reservoir porosity (11.4%), fluid density (1040 kg/m3), rock density (2495 kg/m3), fluid specific heat capacity (3.8 kJ/kg°C) and rock specific heat capacity (0.943 kJ/kg°C) was attributed to the reservoir based on an analysis of various studies and available borehole data. The average temperature gradient of 26.6 °C/km calculated from available equilibrium and/or deep temperature data was used to map the temperature distribution within the reservoir, assuming a surface temperature of 8 °C. An upper depth cut-off of 1400 m, which corresponds to a reservoir temperature of c. 50 °C, was used to calculate the theoretical geothermal resources available for direct use only, assuming a reference (i.e. reinjection) temperature of 25 °C.