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UKCCSRC Call 2 Project: Quantifying Residual and Dissolution Trapping in the CO2CRC Otway Injection Site

Carbon capture and storage (CCS) is a promising means of directly lowering CO2 emissions from fossil fuel combustion. However, concerns about the possibility of CO2 leakage are contributing to slow the widespread adoption of the technology. Research to date has failed to identify a cheap and effective means of measuring how CO2 injected underground is being stored. CO2 can be stored in four different ways: 1.Physically - where gaseous or liquid CO2 is trapped beneath an impermeable sealing cap rock. 2.Residually - where CO2 is trapped within individual and dead end spaces between rock grains (pores). 3.Solubility - where CO2 is dissolved into the formation water, which fills the pores between rock grains. 4.Mineralisation - where CO2 reacts with the host rock forming new carbonate minerals within the pores. Importantly, physically trapped CO2 is mobile and able to leak should a break form in the overlying sealing rocks. CO2 stored by the other three means is not mobile or buoyant, and hence will not migrate out of the CO2 storage site should the seal fail. It is therefore critical for reassurance to the public and regulators of CO2 storage that reliable ways to measure how much of the CO2 injected into the subsurface for storage is locked away in these secure means. Few research studies to date have quantified exactly how much CO2 is stored by residual and solubility trapping across an entire storage site. Estimations have been made from laboratory studies on rock core samples, but these only represent rocks from a small part of the CO2 storage site. Extending these results to infer how CO2 will be stored in the entire storage site is difficult as the rock cores do not represent the variation seen across the storage site. It is possible to use seismic waves to image the CO2 injected. This has proved to be a reliable means of imaging large amounts of CO2 but is unable to image thin layers of CO2 or % dissolved CO2 which makes it very difficult to quantify exactly how CO2 is being stored. Hence, there is a need to develop a reliable test which can be performed at a single CO2 injection well during assessment of a potential site for CO2 storage. This would allow the amount of CO2 which will be residually trapped in the storageformation to be determined. Such a test will lower the risk of mis-estimating the storage capacity of a site and provide a commercial operator with greater reassurance of the predictability of their proposed storage site. We will work with one of the world's leading research organisations focused on CCS, CO2CRC. They own and operate a dedicated research facility into CO2 storage, at Otway CO2 in Australia. This is uniquely suitable because in mid-2011 Otway undertook a successful experimental programme focused on determining residual trapping. Building on these experiments and in direct collaboration with CO2CRC we will use water geochemistry to establish the fate of CO2 injected into the Otway site by quantifying both the level of CO2 residually and solubility trapped and at what distance into the reservoir. This will be achieved using noble gas tracer injection and recovery, to determine residual trapping levels, and by independent oxygen stable isotope measurements to quantify the amount of CO2 dissolution. These tests will calibrate downhole geophysical techniques which CO2CRC will use. Grant number: UKCCSRC-C2-204.

Simple

Date (Creation)
2014-09
Citation identifier
http://data.bgs.ac.uk/id/dataHolding/13606689
Point of contact
Organisation name Individual name Electronic mail address Role

University of Edinburgh

Stuart Gilfillan

not available

Point of contact

University of Edinburgh

Stuart Gilfillan

not available

Principal investigator
Maintenance and update frequency
notApplicable

GEMET - INSPIRE themes, version 1.0

  • Geology

BGS Thesaurus of Geosciences

  • UKCCS

  • NGDC Deposited Data

  • Carbon capture and storage

dataCentre
  • NGDC Deposited Data
  • UKCCS
Keywords
  • NERC_DDC

Access constraints
Other restrictions
Other constraints
intellectualPropertyRights
Other constraints
Either : (i) the dataset has not been formally approved by BGS for access and use by external clients under license; and / or (ii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted before the dataset can be provided to, or accessed by, BGS staff or external clients. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant access restrictions. This staff member should revert to the IPR Section (IPR@bgs.ac.uk) for advice, should the position not be clear.
Use constraints
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

Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section ( ipr@bgs.ac.uk) for advice, should the position not be clear.

Language
English
Topic category
  • Geoscientific information
Begin date
2014-09 After
End date
2016-08 Before

Reference System Information

No information provided.
Distribution format
Name Version
OnLine resource
Protocol Linkage Name
https://www.bgs.ac.uk/ukccs/accessions/projects.html
Hierarchy level
Non geographic dataset
Other

non geographic dataset

Conformance result

Title

INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date (Publication)
2011
Explanation

See the referenced specification

Pass
No

Conformance result

Title

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

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

UKCCSRC Call 2 project, grant number: UKCCSRC-C2-204, Lead institution: University of Edinburgh

Metadata

File identifier
1b608e00-acb7-0682-e054-002128a47908 XML
Metadata language
English
Hierarchy level
Non geographic dataset
Hierarchy level name

non geographic dataset

Date stamp
2025-06-30
Metadata standard name
UK GEMINI
Metadata standard version

2.3

Metadata author
Organisation name Individual name Electronic mail address Role

British Geological Survey

enquiries@bgs.ac.uk

Point of contact
Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13606689

 
 

Overviews

overview

Keywords

NGDC Deposited Data UKCCS


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