Experimental and Theoretical Study of Calcium Sulphate Precipitation in Porous Media Using Glass Micromodel

Ghaderi, Seyyed M.; Kharrat, Riyaz; Tahmasebi, Hamzeh Ali

doi:10.2516/ogst/2009018

Cited by 21 publications

(16 citation statements)

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“…[354,355] The incompatible mixing of formation brines and injection water is often the cause of this decrease in porosity, as a variety of sulfates are known to precipitate in these environments. [367][368][369] These issues can also occur in geothermal systems during the capturing of CO 2 in underground well systems. [356] In this section we aim to provide a brief overview of this topic, where we have chosen to highlight studies that focus on the influence of confinement on crystal nucleation and growth.…”

Section: Crystallization In Porous Mediamentioning

confidence: 99%

“…Packed glass beads provide a convenient model system, where it offers uniformity in structure, optical transparency, and the possibility of modifying the surface chemistry of the beads using silanization. [367,[410][411][412] As an example of this approach, magnetic resonance imaging (MRI) and microcomputed X-ray tomography (µ-CT) was used to investigate calcium carbonate precipitation within a model porous medium comprising packed 200 µm glass beads. [413] MRI generate 3D maps of flow through the porous medium, while µ-CT should be used to visualize the growing crystals in 3D.…”

Section: Model Porous Mediamentioning

confidence: 99%

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Crystallization in Confinement

2020

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Many crystallization processes of great importance, including frost heave, biomineralization, the synthesis of nanomaterials, and scale formation, occur in small volumes rather than bulk solution. Here, the influence of confinement on crystallization processes is described, drawing together information from fields as diverse as bioinspired mineralization, templating, pharmaceuticals, colloidal crystallization, and geochemistry. Experiments are principally conducted within confining systems that offer well‐defined environments, varying from droplets in microfluidic devices, to cylindrical pores in filtration membranes, to nanoporous glasses and carbon nanotubes. Dramatic effects are observed, including a stabilization of metastable polymorphs, a depression of freezing points, and the formation of crystals with preferred orientations, modified morphologies, and even structures not seen in bulk. Confinement is also shown to influence crystallization processes over length scales ranging from the atomic to hundreds of micrometers, and to originate from a wide range of mechanisms. The development of an enhanced understanding of the influence of confinement on crystal nucleation and growth will not only provide superior insight into crystallization processes in many real‐world environments, but will also enable this phenomenon to be used to control crystallization in applications including nanomaterial synthesis, heavy metal remediation, and the prevention of weathering.

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Section: Crystallization In Porous Mediamentioning

confidence: 99%

Section: Model Porous Mediamentioning

confidence: 99%

Crystallization in Confinement

2020

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“…The dilution and reactive mixing processes can be explicitly quantified with low uncertainties by applying the detailed velocity data. Nevertheless, a few pore-scale experiments are still conducted to investigate the mixing and reaction kinetics in porous media [40][41][42][43][44][45]. At steady-state, the effects of grain sizes and structures and porous media heterogeneity on dilution and mixing-controlled reactions have been studied [46][47][48].…”

Section: Pore Scalementioning

confidence: 99%

Recent Advances in Experimental Studies of Steady-State Dilution and Reactive Mixing in Saturated Porous Media

Zhang

et al. 2018

Water

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Transverse dispersive mixing plays an important role in controlling natural attenuation of contaminant plumes and the performance of engineered remediation strategies. The extent of transverse mixing can be significantly affected by porous media heterogeneity and anisotropy. For instance, flow focusing in the high-permeability inclusions leads to an enhancement of dilution and reactive mixing in steady-state solute transport. Numerous modeling studies have been performed to understand the mechanism of conservative and reactive transport in homogeneous and complex heterogeneous porous media. However, experimental investigations are necessary to show an intuitive phenomenon and to validate the modeling results. This paper briefly reviews recent laboratory experimental studies on dilution and reactive mixing of steady-state transport in saturated homogeneous and heterogeneous porous media. In this context, setups and measuring techniques are described in pore-scale and Darcy-scale experiments. Parameters quantifying dilution and reactive mixing in the experiments are also introduced. Finally, we discuss the further experimental works necessary to deepen our understanding of dilution and reactive mixing in natural aquifers.At steady-state conditions, transverse dispersive mixing is the key process determining the length of the plume and the fate of the contaminant transport [6][7][8][9][10][11]. Even though the transverse dispersion coefficient is smaller than the longitudinal dispersion coefficient, contact areas between the mixing solutions are much larger in the transverse direction compared to the longitudinal direction. Only at the front of the plume does longitudinal dispersion play an important role in steady-state plume transport. This can be reflected by the steep concentration gradients found at the fringes of groundwater plumes in the field investigations of contaminant aquifers [12][13][14][15].Observation and measuring points in the field investigation of contaminant transport are generally coarse. Furthermore, the heterogeneity and anisotropy of porous media and the biogeochemical complexity of natural aquifer systems influence dilution and mixing. The interpretation separating different physical and chemical processes and the influencing factors is difficult in natural groundwater systems. A detailed analysis of the pure transverse dispersive mixing process and its influencing factors under well-defined and controlled conditions is only possible by performing laboratory experiments and numerical simulations. Numerous modeling studies have been conducted to investigate transverse dispersion of conservative and reactive solutes in homogeneous and heterogeneous porous media [16][17][18][19]. However, a major challenge of various numerical methods is their numerical dispersion and the resulting uncertainties. Therefore, laboratory experiments are always necessary to give an intuitive view of the phenomenon and to test and verify the numerical models.The objectives of this paper are to give a brief review o...

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“…Scale formation is a ubiquitous phenomenon in nature and in daily life. However, massive scale formation and subsequent precipitation can lead to throughput reduction and eventually pipe/conduit blockage in various industrial processes (Bukuaghangin et al, 2016;Ghaderi et al, 2009;Jordan et al, 2012;Kan and Tomson, 2012;Lecerf et al, 2005;Rostami et al, 2019;Vazquez et al, 2016;Zhang et al, 2018b). Scale associated operational issues are particularly challenging in oilfield operations and especially in deepwater productions (Fink, 2011).…”

Section: Introductionmentioning

confidence: 99%

Laboratory investigation of co-precipitation of CaCO₃/BaCO₃mineral scale solids at oilfield operating conditions: Impact of brine chemistry

Zhang

Kan

Tomson

et al. 2020

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Oilfield mineral scale deposition can become severe flow assurance challenge especially for offshore deepwater productions. Hazards arising from scale formation and subsequent deposition include production system throughput reduction and eventually blockage. Among various types of scales, carbonates are among the most frequently observed scales in oilfield operations. Similar to many natural and industrial processes, co-precipitation of multiple scales can commonly be observed in oilfield operations. Although extensive research efforts have been made in the domain of understanding the thermodynamics of scale formation, there are limited studies to investigate the kinetic aspect of scale formation, particularly the kinetics of co-precipitation of multiple scales. In this study, the kinetic characteristics of CaCO3/BaCO3 co-precipitation have been experimentally investigated at representative oilfield conditions of 80 °C and 1 M NaCl condition. The focus was given to the investigation of the impact of different brine chemistry conditions such as mineral saturation level and Ca to Ba molar ratio. The experimental results suggest that CaCO3 saturation level, substrate material and molar ratio can impact the nature and morphology of the carbonate scales formed. An elevation of CaCO3 saturation index from 0.6 to 2 will change the formed carbonate solids from calcite to aragonite. In addition, at a Ca:Ba molar ratio of 1:15 with an excessive aqueous Ba species available, Ba species can partition into CaCO3 crystal lattice to distort CaCO3 lattice, resulting in almost 2-fold increase in aqueous Ca concentration. The results and conclusions from this study have the potential to benefit oilfield scale control strategy development, particularly the one related to carbonate scale formation control.

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Experimental and Theoretical Study of Calcium Sulphate Precipitation in Porous Media Using Glass Micromodel

Cited by 21 publications

References 21 publications

Crystallization in Confinement

Crystallization in Confinement

Recent Advances in Experimental Studies of Steady-State Dilution and Reactive Mixing in Saturated Porous Media

Laboratory investigation of co-precipitation of CaCO₃/BaCO₃mineral scale solids at oilfield operating conditions: Impact of brine chemistry

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Experimental and Theoretical Study of Calcium Sulphate Precipitation in Porous Media Using Glass Micromodel

Cited by 21 publications

References 21 publications

Crystallization in Confinement

Crystallization in Confinement

Recent Advances in Experimental Studies of Steady-State Dilution and Reactive Mixing in Saturated Porous Media

Laboratory investigation of co-precipitation of CaCO3/BaCO3mineral scale solids at oilfield operating conditions: Impact of brine chemistry

Contact Info

Product

Resources

About

Laboratory investigation of co-precipitation of CaCO₃/BaCO₃mineral scale solids at oilfield operating conditions: Impact of brine chemistry