Hostname: page-component-7bb8b95d7b-l4ctd Total loading time: 0 Render date: 2024-09-20T07:34:00.309Z Has data issue: false hasContentIssue false

Pore-volume alteration measurements to evaluate scale formation during solid–fluid interactions

Published online by Cambridge University Press:  05 July 2018

Prathap Moola*
Affiliation:
Institute of Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavík, Iceland Reykjavík Energy, Baejarhálsi 1, 110 Reykjavík, Iceland
Bergur Sigfússon
Affiliation:
Reykjavík Energy, Baejarhálsi 1, 110 Reykjavík, Iceland
Andri Stefánsson
Affiliation:
Institute of Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavík, Iceland
*
* E-mail: snp3@hi.is
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Pore-volume changes in porous media during water–rock interaction can be studied using hydrological tracers. The tracers used here were amino G acid, napthionic acid and fluorescein at pH 3 and 6.5 in contact with basaltic glass, quartz and rhyolite. The experimental setup mimicked that of a hydrological tracer test where a fixed volume of tracer was injected into a flow-through column and the breakthrough curve monitored. The measured breakthrough tracer curves were compared to theoretical 1-D reactive transport simulations calculated using the PHREEQC program. In some cases the tracers were observed to behave ideally, whereas in others they clearly reacted with the solid surfaces. This implies that some common hydrological tracers used in groundwater hydrology may not be suitable under all conditions as they may react with the surrounding rocks in the groundwater system.

Type
Research Article
Creative Commons
Creative Common License - CCCreative Common License - BY
© [2014] The Mineralogical Society of Great Britain and Ireland. This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY) licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2014

References

Appelo, C.A.J. and Postma, D. (1999) A consistent model for surface complexation on birnessite (d-MnO2) and its application to a column experiment. Geochimica et Cosmochimica Acta, 63, 30393048.CrossRefGoogle Scholar
Axelsson, G., Flovenz, O.G., Hauksdottir, S., Hjartarson, A. and Liu, J. (2001) Analysis of tracer test data and injection-induced cooling, in the Laugaland geothermal field, N. Iceland. Geothermics, 30, 697725.CrossRefGoogle Scholar
Axelsson, G., Björnsson, G. and Montalvo, F. (2005) Quantitative interpretation of tracer test data. World Geothermal Congress, Antalya, Turkey, 2429.Google Scholar
Gislason, S.R. and Oelkers, E. (2003) Mechanism, rates, and consequences of basaltic glass dissolution, II. An experimental study of the dissolution rates of basaltic glass as a function of pH and temperature. Geochimica et Cosmochimica Acta, 67, 38173832.CrossRefGoogle Scholar
Malcolm, S.F.(2002) The QTRACER2 Program for Tracer-Breakthrough Curve Analysis for Tracer Tests in Karstic Aquifers and Other Hydrologic Systems. EPA/600/R-02/001, p.11.Google Scholar
Ptak, T., Piepenbrink, M. and Martac, E. (2004) Tracer tests for the investigation of heterogeneous porous media and stochastic modelling of flow and transport –; a review of some recent developments. Journal of Hydrology, 294, 122163.CrossRefGoogle Scholar
Rezvani Khalilabad, M. (2008) Characterization of the Hellisheidi-Threngsli CO2 sequestration Target Aquifer by Tracer Testing. Oddi, Reykjavik, Iceland. Master thesis, University of Iceland Google Scholar
Sigfusson, B. and Gunnarsson, I. (2011) Scaling prevention experiments in the Hellisheidi power plant, Iceland. Thirty-Sixth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, SGP-TR-191.Google Scholar