Permanent Carbon Dioxide Storage into Basalt: The CarbFix Pilot Project, Iceland

Matter, Juerg M.; Broecker, Wallace S.; Stute, M.; Gíslason, Sigurður R.; Oelkers, Eric H.; Stefánsson, Andri; Wolff-Boenisch, Domenik; Gunnlaugsson, Einar; Axelsson, Guðni; Björnsson, Grímur

doi:10.1016/j.egypro.2009.02.160

Cited by 119 publications

(60 citation statements)

References 20 publications

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“…The aqueous alteration of basaltic rocks consumes CO 2 , therefore playing a role in the global carbon cycle (Dessert et al 2003;Shibuya et al 2013). This feature makes basaltic rocks as a good candidate for CO 2 disposal (Matter et al 2009;Gislason et al 2010;Aradottir et al 2012).…”

Section: Motivationmentioning

confidence: 99%

Differential alteration of basaltic lava flows and hyaloclastites in Icelandic hydrothermal systems

2015

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Geological field observations evidence that active and fossil Icelandic hydrothermal systems are typically embedded into an intercalation of almost completely altered and nearly unaltered volcanic rock layers. We investigated the reasons for this finding with help of geochemical reaction path calculations, by studying the mineralogical evolution of contrasting lithofacies-basalt flows and hyaloclastites at various temperatures and pressures, different recharge water composition, and gas content. From this study, we conclude that the initial porosity of protoliths and volume changes due to their transformation into secondary minerals are sufficient to explain the different extents of alteration as observed in field studies. In addition, we present a generalized kinetic model to estimate the alteration time of glassy fragments in hyaloclastite as a function of grain size, surface roughness, and temperature. This time was found to be rather short, ranging from a few hours to a few years.

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Section: Motivationmentioning

confidence: 99%

Differential alteration of basaltic lava flows and hyaloclastites in Icelandic hydrothermal systems

2015

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“…The potential reservoirs for geologic storage of CO 2 include depleted (exploited) natural gas/oil fields Underschultz et al, 2011), saline aquifers (Soong et al, 2004;Schilling et al, 2009;Thomas et al, 2012), unmineable coal seams (Loizzoa et al, 2011), and basaltic rocks (Goldberg et al, 2008;Matter et al, 2009). The major trapping mechanisms responsible for storage of CO 2 in such reservoirs include structural trapping below the impermeable cap rock, residual trapping (residual immobilization of a few percent of injected CO 2 ), dissolution trapping (dissolution of CO 2 by the brine already present in the pore spaces of reservoir), and mineral trapping (trapping of CO 2 in mineral(s) precipitating as a result of fluidrock interaction) (Van Pham et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Turkish geothermal fields as natural analogues of CO 2 storage sites: Gas geochemistry and implications for CO 2 trapping mechanisms

Güleç

Hilton

2016

Geothermics

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“…Matter et al, 2008;Oelkers et al, 2008;Gíslason et al, 2010;Aradóttir et al, 2011, for further detail). Extensive research has been conducted in order to characterize the pilot injection site at Hellisheidi with respect to stratigraphy, hydrology as well as other physical and chemical properties (e.g.…”

Section: Basalt Alteration In Hellisheidimentioning

confidence: 99%

Development and evaluation of a thermodynamic dataset for phases of interest in CO2 mineral sequestration in basaltic rocks

2012

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Keywords: Thermodynamic dataset CO 2 -waterbasalt interaction Geochemical modeling CO 2 geological storage In situ CO 2 mineral sequestration A B S T R A C T A thermodynamic dataset describing 36 mineral reactions of interest for CO 2 -water-basalt interaction associated with CO 2 mineral sequestration in basaltic formations is presented. Mineral selection for the dataset is based on extensive review of natural analogs of water-basalt interaction at low and elevated CO 2 conditions. Widely used thermodynamic databases did not contain the mineral assemblage needed for successfully simulating the alteration processes observed in nature as important primary and secondary minerals were found to be missing. The EQ3/6 V7.2b database is the primary source for aqueous equilibrium constants in the developed dataset but reactions for four missing Al-hydroxy complexes were added. Recently published thermodynamic data were compiled for most of the minerals considered in this study. Mineral solubility constants obtained directly from measurements were compiled to the dataset without modification but SUPCRT was used for computing solubility constants when such data was not available. In order to verify that the presented dataset can capture alterations observed in nature, simulations of CO 2 -water-basalt interaction were carried out at low and elevated CO 2 conditions and compared to observed basalt alteration in Iceland and Greenland. Overall simulated and observed alteration are in good agreement, both at low and elevated CO 2 conditions, suggesting the dataset to be well suited for simulations of e.g. CO 2 -water-basalt interaction associated with CO 2 mineral sequestration in basalts.

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Permanent Carbon Dioxide Storage into Basalt: The CarbFix Pilot Project, Iceland

Cited by 119 publications

References 20 publications

Differential alteration of basaltic lava flows and hyaloclastites in Icelandic hydrothermal systems

Differential alteration of basaltic lava flows and hyaloclastites in Icelandic hydrothermal systems

Turkish geothermal fields as natural analogues of CO 2 storage sites: Gas geochemistry and implications for CO 2 trapping mechanisms

Development and evaluation of a thermodynamic dataset for phases of interest in CO2 mineral sequestration in basaltic rocks

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