Mechanical response of anisotropic rocks under hydraulic fracture conditions: new experimental insights (NERC grant NE/L009110/1)
Text data capturing pore fluid pressures (upstream and downstream), axial stress, axial and radial displacement were conditioned and logged by a high-speed data acquisition unit (NI-DAQ 6341) recording data at 10kHz. Two additional cantilever-type radial strain probes are attached directly to the sample at 90 degrees to each other, with an average output calculated via sqrt[(rA2 + rB2)], where rA and rB are the two radial outputs, to monitor an average radial strain and crack opening displacement.
INSPIRE
Identification
- File identifier
- 8e061bfe-e4fb-3443-e054-002128a47908 XML
- Resource type
- nonGeographicDataset
Online resource
Resource identifier
- Metadata Language
- English (en)
Encoding
- Format
-
.txt
Projection
Classification of data and services
- Topic category
-
- Geoscientific information
Classification of data and services
Coupled resource
Coupled resource
Classification of data and services
Coupled resource
Coupled resource
Keywords
- GEMET - INSPIRE themes, version 1.0
- BGS Thesaurus of Geosciences
-
-
Hydraulic fracturing
-
NGDC Deposited Data
-
Rock deformation
-
Temporal reference
Temporal extent
Temporal extent
- Dataset Reference Date ()
- 2019-07-01
Quality and validity
- Lineage
-
Hydraulic fracturing experiments were carried out in a triaxial deformation cell consisting of a servo-hydraulic axial and radial (confining) pressure system balanced to allow hydrostatic compensation, and a pore fluid injection pump (distilled water). A right cylindrical sample with centrally drilled conduit is prepared, and fitted with an internal steel guide/assembly to direct pressurized fluid into a section sealed using a number of O-rings. The entire sample assembly is separated from the confining medium using an engineered nitrile jacket. Experiments are carried out in two phases. Firstly, an initial triaxial stress (?1) and confining pressure (Pc) are applied until the required experimental (based on a desired Pc) conditions are established. Secondly, the experiment commences when water is injected at a constant flow rate (1mL/min).
Conformity
Conformity
Conformity
Conformity
Conformity
Conformity
- Explanation
-
See the referenced specification
Restrictions on access and use
- Access constraints
- no limitations
- Access constraints
- The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible.
- Access 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.
- Access constraints
-
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Responsible organization (s)
Contact for the resource
- Organisation name
-
University of Portsmouth
-
not available
- Organisation name
-
University of Portsmouth
-
not available
Responsible organization (s)
Contact for the resource
- Organisation name
-
University of Portsmouth
-
not available
- Organisation name
-
University of Portsmouth
-
not available
Metadata information
Contact for the metadata
- Organisation name
-
British Geological Survey
-
enquiries@bgs.ac enquiries@bgs.ac.uk
- Metadata Date
- 2024-04-23
- Metadata Language
- English (en)