MSc defence by Mahnaz Rezvani Khalilabad
29 September 2008
UNU-GTP MSc Fellow Mahnaz Rezvani Khalilabad, from Iran, defended her MSc thesis etitled "Characterization of the Hellisheidi-Threngsli CO2 sequestration target
aquifer by tracer testing", on Monday September 29, 2008. The defence was held in Askja, at the University of Iceland. The supervisors on the MSc project were Guðni Axelsson
and Sigurður R. Gíslason, and the external examiner at the defence was Halldór Ármannsson.
CHARACTERIZATION OF THE HELLISHEIDI-THRENGSLI CO2 SEQUESTRATION
TARGET AQUIFER BY TRACER TESTING
TARGET AQUIFER BY TRACER TESTING
Icelandic : KÖNNUN
Á FYRIRHUGUÐU CO2 NIÐURDÆLINGARSVÆÐI Í ÞRENGSLUNUM MEÐ FERILPRÓFUN
Abstract
Mineral sequestration is among several promising methods of CO2 reduction. It involves incorporation of CO2 into a solid phase via precipitation of carbonate
minerals. A prerequisite to carbonate precipitation is the availability of aqueous metal cations and a network of porous media for fluid flow and water rock interactions. The Hellisheidi-Threngsli
lava field in SW Iceland comprises ideal conditions for studying the feasibility of permanent CO2 storage as minerals in basaltic rocks. In this study we report on a tracer test conducted between two
wells at the Hellisheidi-Threngsli site to characterize the physical properties of the main aquifers. The results suggest that most of the water flow between the wells is through a homogenous thick
layer with high tortuosity along flow paths and a high reactive surface area for water rock interactions.
Keywords: Tracer test; Na-fluorescein; mineral sequestration; basaltic aquifer; Iceland
The MSc thesis will be published by the University of Iceland, and by the UNU-GTP. The thesis will soon be available online at www.unugtp.is
Mahnaz's studies were financed by a fellowship from the government of Iceland through the UNU-GTP.
Keywords: Tracer test; Na-fluorescein; mineral sequestration; basaltic aquifer; Iceland
The MSc thesis will be published by the University of Iceland, and by the UNU-GTP. The thesis will soon be available online at www.unugtp.is
Mahnaz's studies were financed by a fellowship from the government of Iceland through the UNU-GTP.
Mahnaz being questioned by external examiner Halldor Armansson
Group photo of the candidate, supervisors and UNU-GTP representatives after the defence