Fluid pH and major and minor element data from shale-acidic fluid interaction laboratory experiments

This dataset presents major (ICP-OES) and minor (ICP-MS) element data and fluid pH during interaction of simulated fracturing fluids with the Bowland-Hodder shale at a variety of conditions, i.e. fluid acidity (pH 1-5), temperature (25-70 C), and rock/fluid ratio (from 0.2:200 to 20:200), as well as two end member mineralogical compositions (from 618 m depth and 673 m depth). The data was collected under the SECURe (Subsurface Evaluation of CCS and Unconventional Risks funded under the European Union’s Horizon 2020 research and innovation programme under grant agreement number 764531. Data supplied by permission of University of Nottingham and British Geological Survey.

Date (Creation): 2020-01-07

Identifier: http://data.bgs.ac.uk/id/dataHolding/13607649

Author

University of Nottingham - Yukun Ji

Nottingham , United Kingdom

Point of contact

University of Nottingham - Yukun Ji

Nottingham , United Kingdom

Author

University of Nottingham - Veerle Vandeginste

Nottingham , United Kingdom

Maintenance and update frequency: notApplicable notApplicable

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

Major element analysis
UKCCS
Contamination
Hydraulic fracturing
Trace elements
Geochemical processes
Water

dataCentre

UKCCS

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]"

Metadata language: EnglishEnglish

Topic category

Geoscientific information

Begin date: 2019-09-23

End date: 2020-01-07

Supplemental Information: Related to publication: Geochemical element mobilisation by interaction of Bowland shale with acidic fluids, Ji, Yukun, Hennissen, Jan A. I., Hough, Edward, Vandeginste, Veerle, 2020

Reference System Information

No information provided.

Distribution format

MS Excel ()

OnLine resource: https://www.bgs.ac.uk/services/ngdc/accessions/index.html?#item136785

OnLine resource: Digital Object Identifier (DOI)

Hierarchy level: nonGeographicDataset Non geographic dataset

Other: non geographic 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 solution in our experiments was prepared by Milli-Q water, and the fluid pH was adapted by adding small amounts of concentrated or diluted HCl. The experiments testing the impact of fluid acidity and temperature were conducted at a constant solid to liquid ratio of 1:100 (2 g shale powder in 200 mL solution, whereas rock/fluid ratios systematically varied experiments were carried out to evaluate the impacts of changes in rock-fluid contact on elemental mobilisation at a constant fluid pH of 1.0 and ambient temperature of 60 °C. Each powdered sample was added to a 200 mL solution, where the suspension was continuously stirred using a Teflon-coated magnetic stirrer bar. Each experiment was run for a total of 100 hours, and aliquots (2 mL) were sampled at 0, 1, 3, 7, 23, 27, 31, 54, 77, 100 h and filtered through 0.22 µm polyethersulfone membranes for further analysis.