Homogenization of Dissolution and Enhanced Precipitation Induced by Bubbles in Multiphase Flow Systems

Jiménez‐Martínez, Joaquín; Hyman, Jeffrey D.; Chen, Yu; Carey, J. William; Porter, Mark L.; Kang, Qinjun; Guthrie, George D.; Viswanathan, Hari

doi:10.1029/2020gl087163

Cited by 30 publications

(38 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The flow of immiscible, multiple fluids through porous media is essential in many subsurface processes, including rock dissolution and mineral precipitation (Jiménez‐Martínez et al, 2020), the storage of CO 2 (Bakhshian et al, 2020; Zacharoudiou et al, 2018), enhanced oil/gas recovery (Li et al, 2020; Morrow & Mason, 2001). For the multiphase flow in porous media, the instability of displacement front has a significant impact on the displacement efficiency and invasion morphologies.…”

Section: Introductionmentioning

confidence: 99%

Transitions of Fluid Invasion Patterns in Porous Media

Lan

Yang

et al. 2020

Geophysical Research Letters

View full text Add to dashboard Cite

Fluid invasion into porous media to displace a more viscous fluid exhibits various displacement patterns. For such unfavorable displacements, previous works overlooked the dynamic effect of viscous force on pattern transitions at low flow rates. Consequently, the crossover from compact displacement to capillary fingering under various wetting conditions remains unclear. Here, we establish a theoretical model to capture pattern transitions affected by wettability and flow rate. We rigorously quantify the dynamic effect of viscous force and find that critical contact angles for the crossover from compact displacement to capillary fingering decrease with capillary number. Our model also well describes transitions from capillary fingering to the crossover to viscous fingering. The predicted phase diagram exhibits good agreement with our pore-scale simulations and microfluidic experiments and is highly consistent with existing experiments. This work extends the classic phase diagram under unfavorable conditions and is of practical significance in subsurface applications. Plain Language Summary Fluid invasion into porous media saturated with another more viscous, immiscible fluid exhibits various displacement patterns. The patterns are controlled by the competition between capillary and viscous forces and significantly affect oil recovery and CO 2 trapping efficiency. Although invasion patterns have been studied intensively, the dynamic effect of viscous force on pattern transitions is neglected. The crossovers from compact displacement to capillary fingering are not well understood. To explore pattern transitions affected by wettability and flow rate, we perform theoretical analysis of flow behavior at the pore scale, and then establish a model to describe pattern transitions as functions of contact angle and capillary number. We rigorously consider the dynamic effect of viscous force and find that the critical contact angles for the crossover from compact displacement to capillary fingering decrease with capillary number. The model also well describes the crossover from capillary to viscous fingering. We evaluate the phase diagram using pore-scale simulations, and microfluidic experiments performed in this and previous studies, justifying that the diagram can well capture the transitions under various wetting and flow-rate conditions. This work extends the classic phase diagram and is also of practical significance in predicting displacement patterns in subsurface applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Transitions of Fluid Invasion Patterns in Porous Media

Lan

Yang

et al. 2020

Geophysical Research Letters

View full text Add to dashboard Cite

show abstract

“…These hydrodynamics are reported to promote mixing and thus reactions in the liquid phases (Jiménez-Martínez et al, 2015, and may also increase local mineral reaction rates. In the study of Jiménez-Martínez et al (2020), calcite dissolution rate in the two phase experiment with Ca = ∼10 −5 and v w /v nw = 1.0 is 68% of the dissolution rate in the single phase experiment. This is comparable to the simulation results in the smooth channel, e.g., the reaction rate ratio is ∼64 and ∼72% at v w = 0.1 m/s (i.e., Ca = ∼3.5 × 10 −4 ) for v w /v nw of 0.5 and 0.25, respectively (Figure 7).…”

Section: Discussionmentioning

confidence: 99%

“…The reactive zone, where the reactive mineral is located and highlighted in the blue box in Figure 2, is 1mm long and has an average width (b) of 100 µm. The dimensions are comparable to previous modeling and micromodel studies of geomaterials (Deng et al, 2018;Song et al, 2018;Jiménez-Martínez et al, 2020) and to the fiber diameter in batteries (Chen et al, 2017). In addition to the reference flat channel, a single sine wave was used to represent pore scale roughness in the reactive zone, following (Deng et al, 2018).…”

Section: Simulation Setupmentioning

confidence: 96%

The Effect of Pore-Scale Two-Phase Flow on Mineral Reaction Rates

Deng

Molins

2022

Front. Water

View full text Add to dashboard Cite

In various natural and engineered systems, mineral–fluid interactions take place in the presence of multiple fluid phases. While there is evidence that the interplay between multiphase flow processes and reactions controls the evolution of these systems, investigation of the dynamics that shape this interplay at the pore scale has received little attention. Specifically, continuum scale models rarely consider the effect of multiphase flow parameters on mineral reaction rates or apply simple corrections as a function of the reactive surface area or saturation of the aqueous phase, without developing a mechanistic understanding of the pore-scale dynamics. In this study, we developed a framework that couples the two-phase flow simulator of OpenFOAM (open field operation and manipulation) with the geochemical reaction capability of CrunchTope to examine pore-scale dynamics of two phase flow and their impacts on mineral reaction rates. For our investigations, flat 2D channels and single sine wave channels were used to represent smooth and rough geometries. Calcite dissolution in these channels was quantified with single phase flow and two phase flow at a range of velocities. We observed that the bulk calcite dissolution rates were not only affected by the loss of reactive surface area as it becomes occupied by the non-reactive non-aqueous phase, but also largely influenced by the changes in local velocity profiles, e.g., recirculation zones, due to the presence of the non-aqueous phase. The extent of the changes in reaction rates in the two-phase systems compared to the corresponding single phase system is dependent on the flow rate (i.e., capillary number) and channel geometry, and follows a non-monotonic relationship with respect to aqueous saturation. The pore-scale simulation results highlight the importance of interfacial dynamics in controlling mineral reactions and can be used to better constrain reaction rate descriptions in multiphase continuum scale models. These results also emphasize the need for experimental studies that underpin the development of mechanistic models for multiphase flow in reactive systems.

show abstract

“…Conceptually, the backbone of the fracture network, alternatively referred to as the primary subnetwork, is the set of fractures where the majority of flow and transport occurs. Backbone membership, however, is nonunique and depends dynamically on several factors including the direction of the driving force (Grindrod & Impey, 1993; Neuman, 2005) and multiphase fluid properties (Birkholzer & Tsang, 1997; Datta et al., 2013; de Gennes, 1983; Hyman et al., 2020; Jiménez‐Martínez et al., 2016, 2020). We do not consider these other factors and instead focus solely on how the background stress field influences backbone membership due to restructuring of the flow field within the fracture network.…”

Section: Methodsmentioning

confidence: 99%

Stress Effects on Flow and Transport in Three‐Dimensional Fracture Networks

Sweeney

Hyman

2020

JGR Solid Earth

Self Cite

View full text Add to dashboard Cite

We investigate the effects of various external stress regimes on fracture apertures, fluid flow, and solute transport in three‐dimensional fracture networks. We use well‐established geomechanics equations coupled with discrete fracture network modeling to characterize changes in primary flow paths within a complex network as a function of stress magnitude and orientation. These changes manifest in the alterations of the fluid flow field and are measured in terms of Eulerian and Lagrangian flow observables including solute transport, which is a key problem in many hydrologic applications. Changes in primary flow paths affect the solute transport in the network by promoting anomalously early arrival or long tailing behavior. However, early time arrival is not ubiquitous in anisotropically stressed networks and in most cases there is a delayed arrival of solute, which is attributed to (i) the presence of low‐velocity zones normal to the flow direction, (ii) the angle between flow direction and major compressive principal stress directions, and (iii) changes in the primary flow paths (i.e., increases in tortuosity and active network structure). Overall, flows become more channelized in anisotropically stressed fracture networks than in unstressed and isotropically stressed networks.

show abstract

Homogenization of Dissolution and Enhanced Precipitation Induced by Bubbles in Multiphase Flow Systems

Cited by 30 publications

References 65 publications

Transitions of Fluid Invasion Patterns in Porous Media

Transitions of Fluid Invasion Patterns in Porous Media

The Effect of Pore-Scale Two-Phase Flow on Mineral Reaction Rates

Stress Effects on Flow and Transport in Three‐Dimensional Fracture Networks

Contact Info

Product

Resources

About