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The relevance of dawsonite precipitation in CO (sub 2) sequestration in the Mihalyi-Repcelak area, NW Hungary

Csilla Kiraly, Eszter Sendula, Agnes Szamosfalvi, Reka Kaldos, Peter Konya, Istvan J. Kovacs, Judit Furi, Zsolt Bendo and Gyorgy Falus
The relevance of dawsonite precipitation in CO (sub 2) sequestration in the Mihalyi-Repcelak area, NW Hungary (in Reservoir quality of clastic and carbonate rocks; analysis, modelling and prediction, P. J. Armitage (editor), A. R. Butcher (editor), J. M. Churchill (editor), A. E. Csoma (editor), C. Hollis (editor), R. H. Lander (editor), J. E. Omma (editor) and R. H. Worden (editor))
Special Publication - Geological Society of London (June 2016) 435 (1): 405-418

Abstract

A natural CO (sub 2) reservoir system with a sandstone lithology in NW Hungary has been studied due to its similarities to a large saline reservoir formation that is widespread in the the Pannonian Basin (Central Europe) and is suggested to be one of the best candidates for industrial CO (sub 2) storage. A range of analytical techniques has been used on core samples from CO (sub 2) -containing sandstone layers that represent a wide range of pressures (90-155 bar), temperatures (79-95 degrees C) and pore fluid compositions (total dissolved solids between 18 000 and 50 700 mg l (super -1) ) to identify the mineralogy and textural characteristics of the natural reservoir. The only clear CO (sub 2) -related feature in the studied lithology was the occurrence of dawsonite (NaAlCO (sub 3) (OH) (sub 2) ) in a close textural relationship with albite. This is in clear agreement with our geochemical modelling results, which also underline the presence of albite as a precondition for the crystallization of dawsonite at the given P-T-X conditions. Our results suggest that, at least in the Pannonian Basin, dawsonite may be an important mineral for the safe sequestration of industrial CO (sub 2) in the subsurface. SUPPLEMENTARY MATERIAL: Raman spectra of dawsonite are available at https://doi.org/10.6084/m9.figshare.c.3268322


ISSN: 0305-8719
Coden: GSLSBW
Serial Title: Special Publication - Geological Society of London
Serial Volume: 435
Serial Issue: 1
Title: The relevance of dawsonite precipitation in CO (sub 2) sequestration in the Mihalyi-Repcelak area, NW Hungary
Title: Reservoir quality of clastic and carbonate rocks; analysis, modelling and prediction
Author(s): Kiraly, CsillaSendula, EszterSzamosfalvi, AgnesKaldos, RekaKonya, PeterKovacs, Istvan J.Furi, JuditBendo, ZsoltFalus, Gyorgy
Author(s): Armitage, P. J.editor
Author(s): Butcher, A. R.editor
Author(s): Churchill, J. M.editor
Author(s): Csoma, A. E.editor
Author(s): Hollis, C.editor
Author(s): Lander, R. H.editor
Author(s): Omma, J. E.editor
Author(s): Worden, R. H.editor
Affiliation: Eotvos University, Department of Petrology and Geochemistry, Budapest, Hungary
Pages: 405-418
Published: 20160620
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
Number of pages: 14
References: 56
Accession Number: 2016-094104
Categories: Environmental geologySedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 4 tables, sketch map
N47°00'00" - N48°00'00", E17°00'00" - E20°00'00"
Secondary Affiliation: Hungarian Geological and Geophysical Institute, HUN, Hungary
Source Note: Online First
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201646
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