Pore Scale Observations of Trapped CO2 in Mixed-Wet Carbonate Rock: Applications to Storage in Oil Field

We investigated the physical basis of this weakened trapping using pore scale observations of supercritical CO2 in mixed-wet carbonates. The wetting alteration induced by oil provided CO2-wet surfaces that served as conduits to flow. In situ measurements of contact angles showed that CO2 varied from nonwetting to wetting throughout the pore space, with contact angles ranging 25° <θ< 127°; in contrast, an inert gas, N2, was nonwetting with a smaller range of contact angle 24° <θ< 68 °. Observations of trapped ganglia morphology showed that this wettability allowed CO2 to create large, connected, ganglia by inhabiting small pores in mixed-wet rocks. The connected ganglia persisted after three pore volumes of brine injection, facilitating the desaturation that leads to decreased trapping relative to water-wet systems. This data is associated with this open access publication: Environ. Sci. Technol. 2016, 50, 18, 10282-10290. https://doi.org/10.1021/acs.est.6b03111.
 
Citation proposal
qccsrc@imperial.ac.uk (Qatar Carbonates and Carbon Storage Research Centre) - Hannah Menke (Imperial College London) - Ali Al-Menhali (Imperial College London) (2019) . Pore Scale Observations of Trapped CO2 in Mixed-Wet Carbonate Rock: Applications to Storage in Oil Field. https://metadata.bgs.ac.uk/geonetwork/srv/api/records/947785a3-cdbe-0fa8-e054-002128a47908

Simple

Date ( Publication )
2019-10-04
Identifier
http://data.bgs.ac.uk/id/dataHolding/13607531

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  Author

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Maintenance and update frequency
notApplicable notApplicable
GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Carbonate rocks , Carbon dioxide , Nitrogen , Traps (petroleum) , Limestone , Carbon capture and storage
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
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
English English
Topic category
  • Geoscientific information
Supplemental Information
This data is associated with this open access publication: Environ. Sci. Technol. 2016, 50, 18, 10282-10290. https://doi.org/10.1021/acs.est.6b03111

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  • .txm ()

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  • .am ()

OnLine resource
http://www.bgs.ac.uk/ukccs/accessions/index.html#item130205  
OnLine resource
https://www.bgs.ac.uk/services/ngdc/accessions/index.html#item130205  
Hierarchy level
nonGeographicDataset Non geographic dataset
Other
non geographic dataset

Conformance result

Date ( Publication )
2011
Explanation
See the referenced specification
Pass
false

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
false
Statement
All core-flooding experiments were performed at 10 MPa pore pressure. Observations were made with either CO2 and water or N2 and water as the two fluid phases. The CO2 experiments were performed at a temperature of 50 °C, while N2 experiments were performed at 25 °C. Observations were made of the ganglion distribution of N2brine or CO2-brine systems after an initial supercritical (sc)CO2 or N2 flooding stage, partially saturating the core with the nonaqueous phase, and again after waterflooding, where the remaining gas ganglia were imaged.

gmd:MD_Metadata

File identifier
947785a3-cdbe-0fa8-e054-002128a47908   XML
Metadata language
English English
Hierarchy level
nonGeographicDataset Non geographic dataset
Hierarchy level name
non geographic dataset
Date stamp
2021-04-22
Metadata standard version
2.3

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http://data.bgs.ac.uk/id/dataHolding/13607531
 
 

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