User guide : BGS UK Geothermal Catalogue first digital release, legacy data

Fellgett, M.; Monaghan, A.A.. 2024 User guide : BGS UK Geothermal Catalogue first digital release, legacy data. Nottingham, UK, British Geological Survey, 32pp. (OR/23/060) (Unpublished)

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Abstract/Summary

This guide accompanies the first digital release from the BGS of the UK legacy geothermal catalogue of temperature measurements, thermal conductivity measurements and heat flow calculations. The geothermal catalogue comprises data contained in numerous historic technical reports (WJ/GE series) from the 1977-1991 Geothermal Energy Programme, delivered by BGS and funded by UK Department of Energy (and both its antecedents and successors), and the European Commission. Given the UK Government driver to decarbonise the energy system to achieve NetZero by 2050, there is increasing interest in geothermal opportunities within the UK. This has in turn generated an urgent need to make legacy data available in digital form. This release contains 11,821 data points derived from 743 sites – on which a basic set of validation, verification and intellectual property rights (IPR) checks have been undertaken. This comprises around 77% of the legacy geothermal catalogue dataset held by BGS. Alongside this, five of the source reports have also been released onto the NERC Open Research Archive (NORA; see Appendix 1). This first digital release contains data that has been: spatially located, an identified data source, IPR checked and assessed for release under version 3 of the Open Government Licence (OGL, https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/). The OGL is equivalent to a CC-BY licence establishing the data release to be suitable for commercial and non-commercial third party use, provided the data source is acknowledged. The guide describes the background and data sources used in this release, the methods used, limitations on data quality and plans for future releases. The format of the released data is described. This first release of legacy data focussed on: • Equilibrated temperature data, heat flow calculations and thermal conductivity data - establishing the data source. • Collections of temperature datasets e.g. from hydrocarbon and coal boreholes. • Validation of site / borehole locations. The main limitations on this dataset are: • It contains both observation data (temperature and conductivity measurements) alongside interpreted (calculated) heat flow data. • The data is provided as it was listed in the UK legacy geothermal catalogue. Values have not been validated, so there is a possibility that any errors made in the original reporting have been copied forward. • Some measures of data quality (e.g. equilibrated temperatures vs bottomhole temperatures) and error were included in the legacy dataset. These have been copied forward but vary by data source and have not been validated here. • The heat flow calculations and corrections applied are detailed within the original data sources listed and vary between data sources. The heat flow values are reproduced from the legacy geothermal catalogue – subsequent publications (e.g. Busby 2010, Westaway and Younger 2013) document that the magnitude of paleoclimatic and topographic corrections have not been fully recognised, leading to an underestimation of temperatures at depth and heat flows for the UK geothermal resource. As a result, the heat flow dataset in this release should be used with caution and with understanding of these limitations. Whilst every reasonable check has been made to ensure that these data are appropriate for release, given the challenges in verifying the IPR status of some of the datasets included in the UK geothermal catalogue, a take-down policy is in operation. Future releases are planned for data for which the IPR is more complex; and for datasets more recent than the 1980s geothermal catalogue. Future developments such as linkages to borehole and well records (through the SOBI, BGS release of hydrocarbon well dataset, NSTA well tops) are under consideration.

Item Type:	Publication - Report (Manual)
Digital Object Identifier (DOI):	https://doi.org/10.5285/05569ed5-db0e-4587-807c-58e39ee240fa
Funders/Sponsors:	British Geological Survey
Additional Information. Not used in RCUK Gateway to Research.:	This item has been internally reviewed, but not externally peer-reviewed.
NORA Subject Terms:	Earth Sciences
Date made live:	17 Apr 2024 09:13 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/537202

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