a55d462e-b650-3bec-e054-002128a47908
English
dataset
British Geological Survey
+44 115 936 3100
United Kingdom
enquiries@bgs.ac.uk
pointOfContact
2021-08-31
UK GEMINI
2.3
http://data.bgs.ac.uk/id/dataHolding/13607611
Geomechanical Properties of the Carboniferous Middle Coal Measures: Influence on fracture fluid flow and frictional stability during geothermal utilisation (UKGEOS Glasgow)
2021-10-03
publication
http://data.bgs.ac.uk/id/dataHolding/13607611
UKGEOS and Core Sample Analysis. Geomechanical testing was performed to determine triaxial compressional strength, tensile strength, frictional strength and permeability of sandstones, siltstones, mudstones and coals from eleven depth intervals within the GGC01 borehole, UK Geoenergy Observatories (UKGEOS), Glasgow, United Kingdom. Frictional strength tests were also performed on cuttings samples of sandstones, siltstones, mudstones and coals from the GGA08 borehole, Glasgow, United Kingdom. In total twenty-three tensile strength tests were performed on ten sampled intervals, and seven porosity measurements pre-and post-failure were taken. Nine triaxial compressive strength tests and twenty-one frictional strength tests were performed, with permeability measured both before and after failure or shear respectively. From compressive strength tests we also determined the Young’s modulus and Poisson’s ratio. Results of X-Ray Diffraction are also included in the dataset.
Steven Beynon
University of Liverpool
Department of Environmental Sciences
Jane Herdman Building, 4 Brownlow Street
Liverpool
L69 3GP
not available
originator
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British Geological Survey
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distributor
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British Geological Survey
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https://resources.bgs.ac.uk/images/geonetworkThumbs/a55d462e-b650-3bec-e054-002128a47908.png
Geology
GEMET - INSPIRE themes
2008-06-01
publication
Core sampling
Sampling
Compressive strength
Boreholes
Mudstone
Drilling
Sample analysis
Permeability
Tensile strength
Siltstone
Fluid flow
Coal
Sandstone
Friction (geomechanics)
Fracture analysis
Geomechanics
Carboniferous
BGS Thesaurus of Geosciences
2011
revision
NERC_DDC
otherRestrictions
licenceOGL
restricted
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
The dataset has been formally approved by BGS for access by external clients under a BGS Digital Data Licence, issued via BGS's IPR Section. The dataset must not be provided to, or be accessible by, an external client until the IPR Section confirms that signed licence documentation is in place. Refer to the IPR Section (DigitalLE@bgs.ac.) if further advice is required.. Constraint applies until 2021-10-03
otherRestrictions
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.
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
grid
English
geoscientificInformation
British Geological Survey Gazetteer: OS gazetteer
2002
revision
Glasgow [id=1298677]
-4.2215
-4.2009
55.8384
55.8414
2019-12-02
2020-02-28
0.0000
199.0000
Depth below Local surface
notknown
For more information on the project, visit www.ukgeos.ac.uk.
pdf
Enquiries
British Geological Survey
not available
distributor
https://www.bgs.ac.uk/services/ngdc/accessions/index.html#item134006
information
dataset
dataset
INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology
2011
publication
See the referenced specification
false
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
2010-12-08
publication
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
false
20mm x 40-70mm core plugs sampled from the GGC01 borehole were used for geomechanical testing in University of Liverpool's Rock Deformation Laboratory. All fabrics observed were sub-perpendicular to the drillcore axis so that maximum compressive stress in triaxial tests and tensile strengths are measured at 90° to these fabrics. Porosity was measured prior to testing using a helium pycnometer. In compressional experiments, cores were tested in a triaxial deformation apparatus. Samples were saturated with pore fluid at 2.5MPa and confining pressures were held at 6MPa. Permability was determined using the pulse-transient method. Tensile strength was measured on rock discs via a Brazilian test jig in a uniaxial press. Spare material was crushed to <125 microns and sheared between two porous metal plates to determine frictional strength. Crushed material was also used for XRD analyses.