A microfluidic experiment and pore scale modelling diagnostics for assessing mineral precipitation and dissolution in confined spaces

Poonoosamy, Jenna; Westerwalbesloh, Christoph; Deissmann, Guido; Mahrous, Mohamed; Curti, Enzo; Churakov, Sergey V.; Klinkenberg, Martina; Kohlheyer, Dietrich; Lieres, Eric von; Bosbach, Dirk; Prasianakis, Nikolaos I.

doi:10.1016/j.chemgeo.2019.07.039

Cited by 42 publications

(37 citation statements)

References 70 publications

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“…Homogeneous nucleation rate (

R_{i, nuc} [mol / m^{3} normals]

) was described by the classical nucleation theory and was implemented in CrunchTope as follows (Li et al., 2017):

R_{i, n u c} = A_{0} J_{0} e x p - (\frac{16 π v^{2} α^{3}}{3 k_{B}^{3} T^{3} {(\ln (\frac{I A P}{K_{s p}}))}^{2}})

where A 0 is unity (

{normalm}^{2} / {normalm}^{3}

) and J 0 is the kinetic factor with a value of 1.0 × 10 −8 mol/m 2 s for celestite, which is within the range inferred from the experimental study of Poonoosamy et al. (2019). v is the molecular volume (8.21 × 10 −29 m 3 for celestite), α is the effective interfacial tension (0.092 J/m 2 for celestite, Nielsen & Söhnel, 1971), and k B is the Boltzmann constant.…”

Section: Methodsmentioning

confidence: 69%

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A Pore‐Scale Investigation of Mineral Precipitation Driven Diffusivity Change at the Column‐Scale

Deng

Tournassat

Molins

et al. 2021

Water Resources Research

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Mineral dissolution and precipitation can change the structures of fractured porous media, and thus control their mechanical and hydrodynamic properties. Mineral precipitation is widely observed and occurs when the fluid is over-saturated with respect to one or multiple mineral phases. Some conditions that can be encountered in natural and engineered systems and lead to mineral precipitation include (i) solubility change, for example, due to the presence of temperature gradients (

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“…Homogeneous nucleation rate (

R_{i, nuc} [mol / m^{3} normals]

) was described by the classical nucleation theory and was implemented in CrunchTope as follows (Li et al., 2017):

R_{i, n u c} = A_{0} J_{0} e x p - (\frac{16 π v^{2} α^{3}}{3 k_{B}^{3} T^{3} {(\ln (\frac{I A P}{K_{s p}}))}^{2}})

where A 0 is unity (

{normalm}^{2} / {normalm}^{3}

Section: Methodsmentioning

confidence: 69%

“… The data are from *Nielsen & Söhnel (1971), **Poonoosamy et al. (2019), ***Marty et al. (2015), and **** Palandri (2004).…”

Section: Methodsmentioning

confidence: 99%

A Pore‐Scale Investigation of Mineral Precipitation Driven Diffusivity Change at the Column‐Scale

Deng

Tournassat

Molins

et al. 2021

Water Resources Research

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“…This requires further investigation as it has important implications for predicting natural weathering processes, scaling in the subsurface energy production systems, cement degradation, and glass corrosion among others. The combination of pores scale modelling and microstructural information is a versatile tool to investigate these phenomena [58,59].…”

Section: Discussionmentioning

confidence: 99%

Combination of MRI and SEM to Assess Changes in the Chemical Properties and Permeability of Porous Media due to Barite Precipitation

et al. 2020

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The understanding of the dissolution and precipitation of minerals and its impact on the transport of fluids in porous media is essential for various subsurface applications, including shale gas production using hydraulic fracturing (“fracking”), CO2 sequestration, or geothermal energy extraction. In this work, we conducted a flow through column experiment to investigate the effect of barite precipitation following the dissolution of celestine and consequential permeability changes. These processes were assessed by a combination of 3D non-invasive magnetic resonance imaging, scanning electron microscopy, and conventional permeability measurements. The formation of barite overgrowths on the surface of celestine manifested in a reduced transverse relaxation time due to its higher magnetic susceptibility compared to the original celestine. Two empirical nuclear magnetic resonance (NMR) porosity–permeability relations could successfully predict the observed changes in permeability by the change in the transverse relaxation times and porosity. Based on the observation that the advancement of the reaction front follows the square root of time, and micro-continuum reactive transport modelling of the solid/fluid interface, it can be inferred that the mineral overgrowth is porous and allows the diffusion of solutes, thus affecting the mineral reactivity in the system. Our current investigation indicates that the porosity of the newly formed precipitate and consequently its diffusion properties depend on the supersaturation in solution that prevails during precipitation.

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“…Microfluidic techniques can regulate fluid flows with micron‐scale precision and hence provide a unique opportunity to study geochemical processes associated with heterogeneous flow and transport in reactive geologic porous media at the pore scale. However, most microfluidic experiments have focused on reactions that are driven by externally injected chemicals because typical microdevices are fabricated in nonreactive substrates such as silicon, polydimethylsiloxane (PDMS), or glass slides (De Anna et al, 2014; Poonoosamy et al, 2019; Qi et al, 2018; Willingham et al, 2008; Yoon et al, 2012). Recent works have extended the use of microfluidic techniques to reactive environments relevant to Earth science.…”

Section: Introductionmentioning

confidence: 99%

The Fabrication of Plagioclase Feldspar Microdevices: An Experimental Tool for Pore‐Scale Mineral Dissolution Studies

Jung

Malenda

Worts

et al. 2020

Water Resources Research

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Pore‐scale mineral dissolution reactions are of fundamental importance for sustaining life and determining the fate of chemicals in Earth's near‐surface environments. However, experimental investigations are largely limited to macroscopic approaches due to difficulties in controlling and observing geochemical processes at the pore scale. Here, we present an experimental method using both femtosecond laser ablation and hydrofluoric (HF) etching techniques to fabricate reactive microdevices in a natural silicate mineral, anorthite. The femtosecond laser minimizes damage to the mineral during ablation and HF etching successfully removes a thin amorphous layer induced by laser irradiation. Anorthite dissolution rates under far‐from‐equilibrium conditions (10−8.14 to 10−8.43 mol m−2 s−1), quantified by total calcium flux from the microfluidic device, correspond to previous laboratory‐measured rates also measured under far‐from‐equilibrium conditions, thereby supporting the reactive mineral microdevice as a valuable tool for mineral dissolution studies.

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A microfluidic experiment and pore scale modelling diagnostics for assessing mineral precipitation and dissolution in confined spaces

Cited by 42 publications

References 70 publications

A Pore‐Scale Investigation of Mineral Precipitation Driven Diffusivity Change at the Column‐Scale

A Pore‐Scale Investigation of Mineral Precipitation Driven Diffusivity Change at the Column‐Scale

Combination of MRI and SEM to Assess Changes in the Chemical Properties and Permeability of Porous Media due to Barite Precipitation

The Fabrication of Plagioclase Feldspar Microdevices: An Experimental Tool for Pore‐Scale Mineral Dissolution Studies

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