Initial behavior of granite in response to injection of CO2-saturated fluid

Suto, Yuko; Liu, Lihui; Yamasaki, Nakamichi; Hashida, Toshiyuki

doi:10.1016/j.apgeochem.2006.09.005

Cited by 46 publications

(38 citation statements)

References 20 publications

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“…Mineral-fluid interactions are of prime importance for reservoir permanence through prospective carbonation reactions that trap CO 2 in the form of mineral phases such as metal carbonates (Kaszuba et al, 2003(Kaszuba et al, , 2005Pruess et al, 2003;Suto et al, 2007;Xu et al, 2007). As a result, several investigators have examined the reactivity of aqueous solutions in contact with scCO 2 with different mineral phases including portlandite, anorthite, wollastonite, and olivine (Giammar et al, 2005;Regnault et al, 2005;Hanchen et al, 2006;Lin et al, 2008;Prigiobbe et al, 2009;Garcia et al, 2010;King et al, 2010;Daval et al, 2011;Guyot et al, 2011).…”

Section: Introductionmentioning

confidence: 97%

Reaction of water-saturated supercritical CO2 with forsterite: Evidence for magnesite formation at low temperatures

Felmy

Qafoku

Arey

et al. 2012

Geochimica et Cosmochimica Acta

104

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The nature of the reaction products that form on the surfaces of nanometer-sized forsterite particles during reaction with H 2 O-saturated supercritical CO 2 (scCO 2 ) at 35°C and 50°C were examined under in situ conditions and ex situ following reaction. The in situ analysis was conducted by X-ray diffraction (XRD). Ex situ analysis consisted of scanning electron microscopy (SEM) examination of the surface phases and chemical characterization of precipitates using a combination of confocal Raman spectroscopy, 13 C and 29 Si NMR spectroscopy, and energy-dispersive X-ray spectroscopy (EDS). The results show that the forsterite surface is highly reactive with the primary reaction products being a mixture of nesquehonite (MgCO 3 Á3H 2 O) and magnesite (MgCO 3 ) at short reaction times ($3-4 days) and then magnesite (MgCO 3 ) and a highly porous amorphous silica phase at longer reaction times (14 days). After 14 days of reaction most of the original forsterite transformed to reaction products. Importantly, the formation of magnesite was observed at temperatures much lower (35°C) than previously thought needed to overcome its well-known sluggish precipitation kinetics. The conversion of nesquehonite to magnesite liberates H 2 O which can potentially facilitate further metal carbonation, as postulated by previous investigators, based upon studies at higher temperature (80°C). The observation that magnesite can form at lower temperatures implies that water recycling may also be important in determining the rate and extent of mineral carbonation in a wide range of potential CO 2 storage reservoirs.

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Section: Introductionmentioning

confidence: 97%

Reaction of water-saturated supercritical CO2 with forsterite: Evidence for magnesite formation at low temperatures

Felmy

Qafoku

Arey

et al. 2012

Geochimica et Cosmochimica Acta

104

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“…Many researchers have investigated about mineral trapping processes among CO 2 , water, and rock in CO 2 -water-rock system [5][6][7][8][9]. However, interactions among CO 2 and rock that simulates the CO 2 rich dense phase have only been conducted by Lin et al [10].…”

Section: Introductionmentioning

confidence: 99%

Sorption Characteristics of CO<sub>2</sub> on Rocks and Minerals in Storing CO<sub>2</sub> Processes

Fujii¹,

Nakagawa²,

Satō³

et al. 2010

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“…The solubility of water into CO 2 is also of importance, because it affects the reactivity of CO 2 with surrounding rocks (e.g., Regnault et al 2005;Rimmelé et al 2008;Lin et al 2008;Suto et al 2007) and determines the capacity of injected CO 2 to dry the rock formations adjacent to injection wells (Giorgis et al 2007;Hurter et al 2007;Pruess and Müller 2009). In the case of a CO 2 -based EGS, the partitioning of water into CO 2 would also determine the time required for the removal of water from the (central portion of the) EGS, and the type of chemical interactions that may take place between the CO 2 plume, reservoir rocks, and engineered systems.…”

Section: Introductionmentioning

confidence: 99%

A Phase-Partitioning Model for CO2–Brine Mixtures at Elevated Temperatures and Pressures: Application to CO2-Enhanced Geothermal Systems

2009

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Correlations are presented to compute the mutual solubilities of CO 2 and chloride brines at temperatures 12-300 • C, pressures 1-600 bar (0.1-60 MPa), and salinities 0-6 m NaCl. The formulation is computationally efficient and primarily intended for numerical simulations of CO 2 -water flow in carbon sequestration and geothermal studies. The phase-partitioning model relies on experimental data from literature for phase partitioning between CO 2 and NaCl brines, and extends the previously published correlations to higher temperatures. The model relies on activity coefficients for the H 2 O-rich (aqueous) phase and fugacity coefficients for the CO 2 -rich phase. Activity coefficients are treated using a Margules expression for CO 2 in pure water, and a Pitzer expression for salting-out effects. Fugacity coefficients are computed using a modified Redlich-Kwong equation of state and mixing rules that incorporate asymmetric binary interaction parameters. Parameters for the calculation of activity and fugacity coefficients were fitted to published solubility data over the P-T range of interest. In doing so, mutual solubilities and gas-phase volumetric data are typically reproduced within the scatter of the available data. An example of multiphase flow simulation implementing the mutual solubility model is presented for the case of a hypothetical, enhanced geothermal system where CO 2 is used as the heat extraction fluid. In this simulation, dry supercritical CO 2 at 20 • C is injected into a 200 • C hot-water reservoir. Results show that the injected CO 2 displaces the formation water relatively quickly, but that the produced CO 2 contains significant water for long periods of time. The amount of water in the CO 2 could have implications for reactivity with reservoir rocks and engineered materials.

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Initial behavior of granite in response to injection of CO2-saturated fluid

Cited by 46 publications

References 20 publications

Reaction of water-saturated supercritical CO2 with forsterite: Evidence for magnesite formation at low temperatures

Reaction of water-saturated supercritical CO2 with forsterite: Evidence for magnesite formation at low temperatures

Sorption Characteristics of CO<sub>2</sub> on Rocks and Minerals in Storing CO<sub>2</sub> Processes

A Phase-Partitioning Model for CO2–Brine Mixtures at Elevated Temperatures and Pressures: Application to CO2-Enhanced Geothermal Systems

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Initial behavior of granite in response to injection of CO2-saturated fluid

Cited by 46 publications

References 20 publications

Reaction of water-saturated supercritical CO2 with forsterite: Evidence for magnesite formation at low temperatures

Reaction of water-saturated supercritical CO2 with forsterite: Evidence for magnesite formation at low temperatures

Sorption Characteristics of CO&lt;sub&gt;2&lt;/sub&gt; on Rocks and Minerals in Storing CO&lt;sub&gt;2&lt;/sub&gt; Processes

A Phase-Partitioning Model for CO2–Brine Mixtures at Elevated Temperatures and Pressures: Application to CO2-Enhanced Geothermal Systems

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Sorption Characteristics of CO<sub>2</sub> on Rocks and Minerals in Storing CO<sub>2</sub> Processes