Thermal conductivity data on core samples from selected boreholes from UK sites 2025

This data set consists of thermal property testing results including thermal conductivity, thermal diffusivity, porosity, permeability and density. The data is presented in an excel spreadsheet with two tabs, one containing the data itself and one containing a description of each column. The testing was carried out on behalf of the BGS Geothermal and energy storage programs between 2020 and 2025. The samples were predominantly plugs (24x38mm) or wedges (usually quarter core of various lengths) taken from borehole core. The following boreholes were sampled as part of the project. • UKGEOS CHESHIRE A-101 • Frodsham Marsh • Stanlow • Killingholme DG1 • Speke Reservoir • Carnaby • UKGEOS GGC01 • KEYWORTH D (GSHP 3) • SUTTON BONINGTON SB4 These sites were chosen to support characterisation activities around BGS projects such as the UK GeoEnergy Observatories project and the drilling of a ground source heat well on site at BGS Keyworth.

Date (Creation): 2025-07-11

Identifier: http://data.bgs.ac.uk/id/dataHolding/13608437

Distributor

British Geological Survey - Enquiries

Environmental Science Centre, Nicker Hill, Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom

0115 936 3143
0115 936 3276

Point of contact

British Geological Survey - Enquiries

Environmental Science Centre, Nicker Hill, Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom

0115 936 3143
0115 936 3276

Maintenance and update frequency: unknown Unknown

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

Mudstone
UK Location (INSPIRE)
Abrasion
Porosity
Sandstone
Permeability
NGDC Deposited Data
Citable Data
Density
Thermal conductivity

dataCentre

Keywords

NERC_DDC

Access constraints: otherRestrictions Other restrictions

Other constraints: licenceOGL

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Use constraints: otherRestrictions Other restrictions

Other constraints: The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Spatial representation type: vector Vector

Metadata language: EnglishEnglish

Topic category

Geoscientific information

Geographic identifier

Date (Revision): 2009

Geographic identifier

UK [id=139300]

Date (Creation): 1979

Geographic identifier

UKM

Date (Revision): 2009

Begin date: 2020-01-01

End date: 2025-05-31

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

Distribution format

MS Excel ()

Distributor

British Geological Survey - Enquiries

Environmental Science Centre, Nicker Hill, Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom

0115 936 3143
0115 936 3276

OnLine resource: Thermal conductivity data on core samples from selected boreholes from UK sites 2025 ( WWW:LINK-1.0-http--related )
BGS Thermal Conductivity Lab. (2025). Thermal conductivity data on core samples from selected boreholes from UK sites 2025. NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/06f90e3b-4587-4bd2-bf6f-86c44f664846

OnLine resource: Thermal conductivity data on core samples from selected boreholes from UK sites 2025 ( WWW:DOWNLOAD-1.0-http--download )
This data set consists of thermal property testing results including thermal conductivity, thermal diffusivity, porosity, permeability and density. The data is presented in an excel spreadsheet with two tabs, one containing the data itself and one containing a description of each column. The testing was carried out on behalf of the BGS Geothermal and energy storage programs between 2020 and 2025. The samples were predominantly plugs (24x38mm) or wedges (usually quarter core of various lengths) taken from borehole core.

Hierarchy level: dataset Dataset

Other: dataset

Conformance result

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

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 samples, predominantly plugs or wedges taken from borehole core, were tested in the following conditions; Air dry – the samples were left to dry naturally at room temperature. Fully vacuum resaturated - the samples were prepared by saturation with deaired deionised water using a vacuum chamber. The saturated samples remained under vacuum overnight as a minimum and then remained in deaired deionised water until tested. Oven dry – the samples were dried in an oven at 105°C for a minimum of 24 hours. Fresh, natural moisture content – the samples were removed soon after the core was extracted from the ground and were wrapped to ensure they retained natural moisture content until they were tested. 1. Thermal conductivity - the samples were tested using the following techniques; Modified Transient Plane Source (MTPS) – this is a sensor used with the C-therm Trident Conductivity Analyzer. The sample is placed on top of the sensor and a weight is placed on top to ensure good contact. The sensor contains a coil through which it induces a current and uses the change in voltage as a proxy for movement of heat through the sample (see Trident Thermal Conductivity Instrument – C-Therm Technologies Ltd. for more detail). The sensor requires a contact agent to sit between the sample and the sensor, for fully saturated and fresh samples this is water, for dry samples this is thermal grease as noted in the dataset. High resolution optical scanning High-precision non-contact measurement that optically scans the sample’s surface with a focused, mobile and continuously operated heat source in combination with two infrared temperature sensors. After warming up the instrument, the sensors were calibrated with a reference sample. The measurements were made on a 2 cm wide black mark made on the plane surface of each sample. All the measurements were repeated three times from which mean values were calculated.” 2. Porosity and permeability Porosity and permeability values were obtained for some samples. A standard liquid resaturation method was used to determine effective porosity, bulk density and grain density (Bloomfield et al. 1995). Gas permeability was determined using nitrogen under steady state conditions and an equivalent liquid permeability calculated on the basis of a previous empirical correlation (Bloomfield and Williams 1995). Probe permeametry was performed using nitrogen as the permeant under steady state flow conditions and assuming radial flow geometry. Details of each of the methods are given in the methodology document Wallingford Poroperm methodology Peter Williams Where grain size is referred to in the data, this is based on the BGS RCS modified Wentworth scheme, see https://webapps.bgs.ac.uk/data/vocabularies/dictionary.cfm?name=DIC_GRAIN_SIZE_BGS