EPSRC project paper: New insights from 3D geological models at analogue CO2 storage sites in Lincolnshire and eastern Scotland, UK

Subsurface 3D geological models of aquifer and seal rock systems from two contrasting analogue sites have been created as the first step in an investigation into methodologies for geological storage of carbon dioxide in saline aquifers. Development of the models illustrates the utility of an integrated approach using digital techniques and expert geological knowledge to further geological understanding. The models visualize a faulted, gently dipping Permo-Triassic succession in Lincolnshire and a complex faulted and folded Devono-Carboniferous succession in eastern Scotland. The Permo-Triassic is present in the Lincolnshire model to depths of -2 km OD, and includes the aquifers of the Sherwood Sandstone and Rotliegendes groups. Model-derived thickness maps test and refine Permian palaeogeography, such as the location of a carbonate reef and its associated seaward slope, and the identification of aeolian dunes. Analysis of borehole core samples established average 2D porosity values for the Rotliegendes (16%) and Sherwood Sandstone (20%) groups, and the Zechstein (5%) and Mercia Mudstone (<10%) groups, which are favourable for aquifer and seal units respectively. Core sample analysis has revealed a complex but wellunderstood diagenetic history. Re-interpretation of newly reprocessed seismic data in eastern Scotland has significantly reduced interpretative uncertainty of aquifer and seal units at depths of up to -6 km OD in a complex faulted and folded Devonian-Carboniferous succession. Synthesis of diverse data in the 3D geological model defines a set of growth folds and faults indicative of active Visean to Westphalian dextral-strike slip, with no major changes in structural style throughout the Carboniferous, in contrast to some published tectonic models. Average 2D porosity values are 14-17% in aquifer units and <2% in the seal unit, with a ferroan dolomite cement occluding porosity at depth.
 
Citation proposal
Enquiries (British Geological Survey). EPSRC project paper: New insights from 3D geological models at analogue CO2 storage sites in Lincolnshire and eastern Scotland, UK. https://metadata.bgs.ac.uk/geonetwork/srv/api/records/dbd1bf52-4bf9-253c-e044-0003ba9b0d98

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Date ( Creation )
2012-06-27
Identifier
http://data.bgs.ac.uk/id/dataHolding/13605742

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  0115 936 3276 

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  0115 936 3276 

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  0115 936 3276 

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GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Energy conservation , Carbon , Fossil fuels , Energy storage
Keywords
  • NERC_DDC
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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.
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English English
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  • Geoscientific information
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Files located at http://nora.nerc.ac.uk/18485/

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  0115 936 3276 

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  0115 936 3276 
OnLine resource
http://www.bgs.ac.uk/ukccs/accessions/index.html#item72731  
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dataset Dataset
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dataset

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Date ( Publication )
2011
Explanation
See the referenced specification
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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
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false
Statement
Peer-reviewed paper published in the Proceedings of the Yorkshire Geological Society, 59 (1). 53-76. 10.1144/pygs.59.1.289

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English English
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dataset Dataset
Date stamp
2021-07-23
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2.3

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