-
Chemical Compositions in Salinity Waterflooding of Carbonate Reservoirs: Theory Transp Porous Media (IF 2.376) Pub Date : 2021-01-15 M. P. Yutkin, C. J. Radke, T. W. Patzek
Higher oil recovery after waterflood in carbonate reservoirs is attributed to increasing water wettability of the rock that in turn relies on complicated surface chemistry. In addition, calcite mineral reacts with aqueous solutions and can alter substantially the composition of injected water by mineral dissolution. Carefully designed chemical and/or brine flood compositions in the laboratory may not
-
Effects of Cilia Movement on Fluid Velocity: I Model of Fluid Flow due to a Moving Solid in a Porous Media Framework Transp Porous Media (IF 2.376) Pub Date : 2021-01-06 Kanognudge Wuttanachamsri, Lynn Schreyer
Cilia, hair-like, organelles that are found in the respiratory tract (nasal cavity, pharynx, trachea, and bronchi) rhythmically beat to clear mucus from the airways. Here, we formulate a novel model of fluid flow due to the movement of cilia, and in the companion paper, Part II, the model is numerically solved under simplifying assumptions using physical data from lung bronchi. The model is based on
-
Empirical Flow Rate/Pressure Drop Relationships for Capillaries of Triangular and Rectangular Cross-Sections to be Used in Yield Stress Fluid Porosimetry Transp Porous Media (IF 2.376) Pub Date : 2021-01-05 Terence Emery Mackaya, Azita Ahmadi-Senichault, Abdelaziz Omari, Antonio Rodríguez de Castro
The aim of the present work is to investigate the flow rate/pressure gradient relationship for the flow of yield stress fluids through rectilinear capillaries of non-circular cross-sections. These capillaries very often serve as basic elements in the modeling of porous media as bundles of capillaries or pore-network models. Based on the notions of shape coefficient and critical Bingham number, empirical
-
Numerical Investigation of Thermally Developing Non-Darcy Forced Convection in a Porous Circular Duct with Asymmetric Entrance Temperature Under LTNE Condition Transp Porous Media (IF 2.376) Pub Date : 2021-01-04 Feilong Yue, Peichao Li, Changying Zhao
This paper numerically investigates the heat transfer performance of thermally developing non-Darcy forced convection in a fluid-saturated porous medium tube under asymmetric entrance temperature boundary conditions. The Brinkman flow model and the local thermal non-equilibrium (LTNE) model are employed to establish the mathematical model of the studied problem to predict the forced convective heat
-
Liquid Transport Through Nanoscale Porous Media with Strong Wettability Transp Porous Media (IF 2.376) Pub Date : 2021-01-04 Jie Zhang, Hongqing Song, Weiyao Zhu, Jiulong Wang
It is important to investigate interfacial effects on liquid transport characteristics through nanopores with strong wettability due to potential applications in several fields. The structural and transport properties of wetted liquid argon through nanochannels were investigated via molecular dynamics (MD) simulations. A mathematical model for liquid flow in nanoporous media was established based on
-
The Effect of Surface Roughness on Immiscible Displacement Using Pore Scale Simulation Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 Lei Zhang, Chao Xu, Yaohao Guo, Guangpu Zhu, Shiyu Cai, Xin Wang, Wenlong Jing, Hai Sun, Yongfei Yang, Jun Yao
Pore scale immiscible displacement is crucial in oil industry. The surface roughness of throat is an important factor affecting water–oil interface movement. In this paper, the Navier–Stokes (N-S) equation coupled with the phase-field method is adopted to analyze the oil–water flow and interface movement in single channel, considering different surface roughness, diverse wettability and various capillary
-
Identifying Efficient Transport Pathways in Early-Wood Timber: Insights from 3D X-ray CT Imaging of Softwood in the Presence of Flow Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 H. C. Burridge, R. Pini, S. M. K. Shah, T. P. S. Reynolds, G. Wu, D. U. Shah, O. A. Scherman, M. H. Ramage, P. F. Linden
Wider use of timber has the potential to greatly reduce the embodied carbon of construction. Improved chemical treatment could help overcome some of the barriers to wider application of timber, by furthering the durability and/or mechanical properties of this natural material. Improving timber treatment by treating the whole volume of a piece of timber, or tailored sections thereof, requires sound
-
Analytical and Numerical Study on Thermally Developing Forced Convective Flow in a Channel Filled with a Highly Porous Medium Under Local Thermal Non-Equilibrium Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 Yuan Yi, Xiaohui Bai, Fujio Kuwahara, Akira Nakayama
An analytical and numerical study was made on thermally developing forced convective flow in a channel filled with a fluid-saturated porous medium, subject to constant heat flux, under local thermal non-equilibrium. The Brinkman-extended Darcy model was employed to investigate the combined effects of the Darcy number, Biot number, effective thermal conductivity ratio and Graetz number on the longitudinal
-
High-Throughput Screening of Metal-Organic Frameworks for the Impure Hydrogen Storage Supplying to a Fuel Cell Vehicle Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 H. Wang, Y. Yin, B. Li, J. Q. Bai, M. Wang
Metal-organic frameworks (MOFs), as typical porous materials, have been widely used for gas storage. However, impurities usually coexist in the stored gas, which will affect the deliverable capacity of the target gas. In this work, H2 gas (the target gas) adsorption process in 504 MOFs accompanied by impurities is screened by using a grand canonical Monte Carlo simulation method. The effects of the
-
Optimal Wetting Angles in Lattice Boltzmann Simulations of Viscous Fingering Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 Peter Mora, Gabriele Morra, Dave A. Yuen, Ruben Juanes
We conduct pore-scale simulations of two-phase flow using the 2D Rothman–Keller colour gradient lattice Boltzmann method to study the effect of wettability on saturation at breakthrough (sweep) when the injected fluid first passes through the right boundary of the model. We performed a suite of 189 simulations in which a “red” fluid is injected at the left side of a 2D porous model that is initially
-
Rock Porous Structure Characterization: A Critical Assessment of Various State-of-the-Art Techniques Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 Mehdi Razavifar, Aliya Mukhametdinova, Ehsan Nikooee, Alexander Burukhin, Amin Rezaei, Alexey Cheremisin, Masoud Riazi
The porous structure of geomaterials is of utmost importance for various industrial and natural processes. In this study, various conventional porous structure characterization techniques such as mercury intrusion porosimetry (MIP), nuclear magnetic resonance (NMR), micro-X-ray computed tomography (μCT) imaging, as well as gas injection have been employed to perform a systematic and critical evaluation
-
On Boundedness and Growth of Unsteady Solutions Under the Double Porosity/Permeability Model Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 K. B. Nakshatrala
-
Stochastic Effects of 2D Random Arrays of Cylinders on Rarefied Gas Permeability Using the Lattice Boltzmann Method Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 Michel Ho, Sébastien Leclaire, Marcelo Reggio, Jean-Yves Trépanier
A large set of 2D random arrays of circular cylinders is generated to perform a statistical study on rarefied gas flow through micro-porous media. The flow regimes in this work lie for Knudsen numbers (Kn) ranging from the continuum to the transition regimes. Arrays are built by randomly placing cylinders with constant diameter with a uniform distribution without overlapping, and are generated for
-
Higher-Order Homogenized Boundary Conditions for Flows Over Rough and Porous Surfaces Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 Y. Sudhakar, Ugis Lācis, Simon Pasche, Shervin Bagheri
We derive a homogenized macroscopic model for fluid flows over ordered homogeneous porous surfaces. The unconfined free flow is described by the Navier–Stokes equation, and the Darcy equation governs the seepage flow within the porous domain. Boundary conditions that accurately capture mass and momentum transport at the contact surface between these two domains are derived using the multiscale homogenization
-
A Fractional Decline Model Accounting for Complete Sequence of Regimes for Production from Fractured Unconventional Reservoirs Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 Shuai Liu, Peter P. Valkó
On the basis of a well-based model (Model I) developed in a previous work (Liu and Valkó in SPE J 2019. https://doi.org/10.2118/197049-PA), in which a fractional production decline model is developed based on anomalous diffusion to structurally account for the heterogeneity related to the complex fracture network, we incorporate two more components, i.e., the tempered anomalous diffusion and a source
-
The Effect of Morphological and Topological Characteristics on Effective Diffusivity and Permeability of Dual-Structural-Scale Synthetic Porous Medium Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 Fateme Shamsi, Saeid Norouzi-Apourvari, Saeed Jafari
Image-based simulations at pore scale provide direct insight into the impact of the microstructure on flow and transport processes in porous media. Diffusion is an important mechanism of mass transfer in gas or liquid phases, confined in porous media. Similar to fluid flow, the diffusive transport in porous media is a strong function of pore size and structure. Although the effect of porosity, pore
-
Darcy–Carreau Model and Nonlinear Natural Convection for Pseudoplastic and Dilatant Fluids in Porous Media Transp Porous Media (IF 2.376) Pub Date : 2021-01-03 Pedro Vayssière Brandão, Mohamed Najib Ouarzazi
The linear and weakly nonlinear stability analyses are carried out to study instabilities in Darcy–Bénard convection for non-Newtonian inelastic fluids. The rheological model considered here is the Darcy–Carreau model, which is an extension to porous media of Carreau rheological model usually used in clear fluid media. The linear stability approach showed that the critical Rayleigh number and wave
-
Dual Compressibility Characteristics of Lignite, Subbituminous, and High-Volatile Bituminous Coals: A New Insight into Permeability Transp Porous Media (IF 2.376) Pub Date : 2021-01-02 Sandong Zhou, Dameng Liu, Zuleima T. Karpyn, Yidong Cai, Yanbin Yao
Pore compressibility is an important physical property of coal, which controls geomechanical behavior and hydrocarbon reserve evaluation of coal seams. However, the representation of pore compressibility is usually oversimplified in coalbed methane (CBM) reservoir analysis. This study proposes the adoption of the dual compressibility concept, where both accessible porosity (connected pore) and the
-
Effects of Calcite Dissolution on Caprock’s Sealing Performance Under Geologic CO 2 Storage Transp Porous Media (IF 2.376) Pub Date : 2021-01-02 Masao Sorai
To assess the long-term integrity of geologic CO2 storage, samples modeling caprock were reacted under a supercritical CO2-water system at 10 MPa and 40 °C. The resultant effects on their sealing performance were analyzed. The use of calcite-containing artificial samples comprising silica particles with controlled size, configuration, and packing density quantified the relation between the dissolved
-
Probability Density Function of Bead-Pack Test Planes and Resolution Limits of Tomography Transp Porous Media (IF 2.376) Pub Date : 2021-01-01 T. S. Ramakrishnan, H. Zhang
Quantitative stereology translates three-dimensional statistics into areal and lineal size distributions. Conversely, cross-sectional data are used to infer volumetric properties. One may thus infer porosity from cross-sectional areal porosity or through segment intersections with void and solid. Cross sections of uniform and spherical-bead packs result in a size distribution of circles, the statistics
-
A Novel Modeling Approach to Stochastically Evaluate the Impact of Pore Network Geometry, Chemistry and Topology on Fluid Transport Transp Porous Media (IF 2.376) Pub Date : 2020-12-23 Maria Apostolopoulou, Michail Stamatakis, Alberto Striolo, Ron Dusterhoft, Rob Hull, Richard Day
Fine-grained sandstones, siltstones, and shales have become increasingly important to satisfy the ever-growing global energy demands. Of particular current interest are shale rocks, which are mudstones made up of organic and inorganic constituents of varying pore sizes. These materials exhibit high heterogeneity, low porosity, varying chemical composition and low pore connectivity. Due to the complexity
-
Experimental and Modelling Study of Gravity Drainage in a Three-Block System Transp Porous Media (IF 2.376) Pub Date : 2020-12-02 Hamidreza Erfani, Abtin Karimi Malekabadi, Mohammad Hossein Ghazanfari, Behzad Rostami
Gravity drainage is known as the controlling mechanism of oil recovery in naturally fractured reservoirs. The efficiency of this mechanism is controlled by block-to-block interactions through capillary continuity and/or reinfiltration processes. In this study, at first, several free-fall gravity drainage experiments were conducted on a well-designed three-block apparatus and the role of tilt angle
-
The Complexity of Porous Media Flow Characterized in a Microfluidic Model Based on Confocal Laser Scanning Microscopy and Micro-PIV Transp Porous Media (IF 2.376) Pub Date : 2020-11-27 D. A. M. de Winter, K. Weishaupt, S. Scheller, S. Frey, A. Raoof, S. M. Hassanizadeh, R. Helmig
-
Composite Modeling for Evaluation of Groundwater and Soil Salinization on the Multiple Reclaimed Land Due to Sea-Level Rise Transp Porous Media (IF 2.376) Pub Date : 2020-11-25 Euntae Jung, Namsik Park, Jihoon Park
In this study, the applicability of the composite model for assessing seawater intrusion and soil salinization in coastal aquifers due to climate change was investigated. In this approach, flow in the saturated zone of a coastal aquifer is simulated using a three-dimensional saturated–unsaturated transport model and flow in the unsaturated zone between the surface and groundwater level is simulated
-
Non-normal-Mode Onset of Convection in a Vertical Porous Cylinder Transp Porous Media (IF 2.376) Pub Date : 2020-11-24 Peder A. Tyvand, Jonas Kristiansen Nøland
This is the first study reporting a full three-dimensional (3D) non-normal-mode onset of convection in a porous medium. In this paper, the onset of thermal convection in a vertical porous cylinder is investigated theoretically. In particular, the contribution includes the following novelties. The homogeneous cylinder has a circular cross section. The eigenvalue problem is non-separable in space because
-
Numerical Simulation of the Physical–Chemical–Thermal Processes During Hydration Reaction of the Calcium Oxide/Calcium Hydroxide System in an Indirect Reactor Transp Porous Media (IF 2.376) Pub Date : 2020-11-24 Mengyi Wang, Li Chen, Yuhao Zhou, Wen-Quan Tao
The CaO/Ca(OH)2 thermochemical energy storage system can store heat through reversible reactions for long term and transport energy for long distance, and thus can solve the mismatching between energy supply and demand. In this study, a one-dimensional model is developed for the physical–chemical–thermal processes during the hydration reaction of CaO/Ca(OH)2 system in an indirect fixed bed reactor
-
Pore-Scale Transport and Two-Phase Fluid Structures in Fibrous Porous Layers: Application to Fuel Cells and Beyond Transp Porous Media (IF 2.376) Pub Date : 2020-11-23 Meisam Farzaneh, Henrik Ström, Filippo Zanini, Simone Carmignato, Srdjan Sasic, Dario Maggiolo
We present pore-scale simulations of two-phase flows in a reconstructed fibrous porous layer. The three-dimensional microstructure of the material, a fuel cell gas diffusion layer, is acquired via X-ray computed tomography and used as input for lattice Boltzmann simulations. We perform a quantitative analysis of the multiphase pore-scale dynamics, and we identify the dominant fluid structures governing
-
Patching Hele-Shaw Cells to Investigate the Flow at Low Reynolds Number in Fracture Networks Transp Porous Media (IF 2.376) Pub Date : 2020-11-22 Pouria Aghajannezhad, Mathieu Sellier, Sid Becker
This research has found a novel computationally efficient method of modelling flow at low Reynolds number through fracture networks. The numerical analysis was performed by connecting Hele-Shaw cells to investigate the effect of intersections on the pressure field and hydraulic resistance for given inlet and outlet pressure values. In this analysis, the impact of intersecting length, intersecting angle
-
Reconstruction of Carbon Papers and Analysis of Structural and Characteristic Parameters Through Lattice Boltzmann Method Transp Porous Media (IF 2.376) Pub Date : 2020-11-21 Yanan Gao, Zhi Wen, Xie Deng, Mingze Shi, Xunliang Liu
Carbon paper is commonly used to fabricate electrodes for batteries, and its morphology is crucial to the internal mass transport. In this work, geometric models of carbon paper are obtained by experimental and numerical reconstruction methods. The micromorphology of the carbon paper is obtained with a scanning electron microscope and an X-ray computed tomography scanner, and the binary slicing method
-
A Compressible Porous Media Model to Estimate Fluid Leak Through a Metal–Elastomer Interface Transp Porous Media (IF 2.376) Pub Date : 2020-11-20 Sri Krishna Sudhamsu Kambhammettu, Abhijit P. Deshpande, Lakshmana Rao Chebolu
Flow of fluids through porous media such as soil, rocks, bones, wood and concrete has been an area of interest for engineering communities that deal with porous materials. The tools developed to describe flow through porous regions are generally applied to bulk materials with single composition. In this paper, however, we demonstrate their applicability to an interface of any two contacting surfaces
-
Brine Formation and Mobilization in Submarine Hydrothermal Systems: Insights from a Novel Multiphase Hydrothermal Flow Model in the System H 2 O–NaCl Transp Porous Media (IF 2.376) Pub Date : 2020-11-19 F. Vehling, J. Hasenclever, L. Rüpke
Numerical models have become indispensable tools for investigating submarine hydrothermal systems and for relating seafloor observations to physicochemical processes at depth. Particularly useful are multiphase models that account for phase separation phenomena, so that model predictions can be compared to observed variations in vent fluid salinity. Yet, the numerics of multiphase flow remain a challenge
-
Evidence for the Heterogeneity of the Pore Structure of Rocks from Comparing the Results of Various Techniques for Measuring Hydraulic Properties Transp Porous Media (IF 2.376) Pub Date : 2020-11-17 Laura L. Schepp, Joerg Renner
We applied three oscillatory methods, the previously presented axial pore-pressure and pore-flow methods, and the laboratory application of the radial oscillatory pore-flow method, and performed steady-state flow-through experiments (Darcy tests), for comparison, in experiments on samples of Westerly granite and Wilkeson sandstone. The granite and the sandstone exhibit pore spaces dominated by micro-fractures
-
A Model for Relative Permeabilities Under Gas Liberation or Condensate Precipitation in Porous Medium Transp Porous Media (IF 2.376) Pub Date : 2020-11-16 Wael Al-Masri, Alexander Shapiro
We derive a model for relative permeabilities under two-phase flows in porous media, where the phases may partly mix with each other, and one of the phases may be immobile. Particular cases are the bubble formation in an oil reservoir when the pressure falls below the bubble point, or, similarly, condensation and droplet precipitation in a gas-condensate reservoir. The dependencies for the relative
-
Transport of Turbulence Across Permeable Interface in a Turbulent Channel Flow: Interface-Resolved Direct Numerical Simulation Transp Porous Media (IF 2.376) Pub Date : 2020-11-16 Xu Chu, Wenkang Wang, Guang Yang, Alexandros Terzis, Rainer Helmig, Bernhard Weigand
Turbulence transportation across permeable interfaces is investigated using direct numerical simulation, and the connection between the turbulent surface flow and the pore flow is explored. The porous media domain is constructed with an in-line arranged circular cylinder array. The effects of Reynolds number and porosity are also investigated by comparing cases with two Reynolds numbers (\(Re\approx
-
A Novel Method for Streamline-Based Tortuosity Calculation and Investigation of Obstacles Shape Effect on Tortuosity in Porous Media with Random Elliptical Obstacles Using Lattice Boltzmann Method Transp Porous Media (IF 2.376) Pub Date : 2020-11-12 Mohammad Ezzatabadipour, Hamid Zahedi
-
Fluid Flow Simulations of a Large-Scale Borehole Leakage Experiment Transp Porous Media (IF 2.376) Pub Date : 2020-11-12 Tim Klose, M. Carme Chaparro, Frank Schilling, Christoph Butscher, Steffen Klumbach, Philipp Blum
Borehole leakage is a common and complex issue. Understanding the fluid flow characteristics of a cemented area inside a borehole is crucial to monitor and quantify the wellbore integrity as well as to find solutions to minimise existing leakages. In order to improve our understanding of the flow behaviour of cemented boreholes, we investigated experimental data of a large-scale borehole leakage tests
-
Identifying the Optimal Path and Computing the Threshold Pressure for Flow of Bingham Fluids Through Heterogeneous Porous Media Transp Porous Media (IF 2.376) Pub Date : 2020-11-08 Hamid Didari, Hassan Aghdasinia, Mahdi Salami Hosseini, Fatemeh Ebrahimi, Muhammad Sahimi
Understanding flow of non-Newtonian fluids in porous media is critical to successful operation of several important processes, including polymer flooding, filtration, and food processing. In some cases, such as when a non-Newtonian fluid can be represented by the power-law model, simulation of its flow in a porous medium is a straightforward extension of that of Newtonian fluids. In other cases, such
-
Experimental Study on Influence of Intermediate Principal Stress on the Permeability of Sandstone Transp Porous Media (IF 2.376) Pub Date : 2020-11-07 Heng Gao, Dongming Zhang, Jun Lu, Guangzhi Yin, Mingyang Wu
In engineering, it is considerably important to understand the evolution process of sandstone deformation and permeability under complex stress conditions. Although numerous scholars have reported on sandstone permeability, many of their studies are only based on uniaxial or conventional triaxial stress conditions. In practical engineering, in situ stress evidently indicates three-dimensional anisotropy
-
Molecular Dynamics Study on the Effects of Metal Cations on Microscale Interfacial Properties of Oil–Water-Surfactant System Transp Porous Media (IF 2.376) Pub Date : 2020-11-05 Lijun Sun, Kuangsheng Zhang, Qianyun Zhao, Yonghong Gu, Changjing Zhou, Wenxiong Wang, Dengwei Jing
Water flooding is a secondary oil recovery process where oil from porous rocks is displaced by high-pressure water. Often, water with high salinity was used in this process. In this work, the effects of metal cations on interfacial properties of oil–water-surfactant flooding systems were investigated using molecular dynamics simulation. The results show that the addition of metal cations can cause
-
Pore-Scale Water Vapor Condensation Behaviors in Shales: An Experimental Study Transp Porous Media (IF 2.376) Pub Date : 2020-11-03 Guijie Sang, Shimin Liu, Derek Elsworth, Rui Zhang, Markus Bleuel
Water condensation in shales impacts its hydro-mechanical response. A mechanistic understanding of the pore-water system is made more challenging by significant anisotropy of pore architecture and nano-scale heterogeneity of pore surfaces. We probe the condensation response in two contrasting shales exposed to a vapor of contrast-matching water, as characterized by in situ ultra-small/small-angle neutron
-
Spontaneous Capillary Imbibition of Water and Nonaqueous Liquids into Dry Quarry Limestones Transp Porous Media (IF 2.376) Pub Date : 2020-11-02 Christopher Hall, Victoria Pugsley
Rates of spontaneous imbibition of water and nonaqueous liquids into dry limestones have been measured at 25 °C. Thirteen English and French limestones were used, with eight liquids (water, decane, dodecane, sec-butanol, iso-propanol, tetrahydrofuran, perfluorodimethylcyclohexane, ethanediol). For the nonaqueous liquids, the measured sorptivity generally scales as (surface-tension/viscosity)\(^{1/2}\)
-
The Dynamic Evolution of Permeability in Compacting Carbonates: Phase Transition and Critical Points Transp Porous Media (IF 2.376) Pub Date : 2020-11-01 Xiao Chen, Klaus Regenauer-Lieb, Adelina Lv, Manman Hu, Hamid Roshan
Mechanical damage and resultant permeability evolution during compaction of highly porous reservoir rocks have strong implications on the extraction of mineral and energy resources. Laboratory Experiments can be performed to quantify this effect; however, the effect of size on these processes and the information they provide need to be evaluated before any conclusion can be drawn. As part of this study
-
Effects of CO 2 -Saturated Brine on the Injectivity and Integrity of Chalk Reservoirs Transp Porous Media (IF 2.376) Pub Date : 2020-11-01 Mohamed Khather, Ali Saeedi, Matthew B. Myers, Ausama Giwelli
Underground storage of CO2 in geological structures is very often accompanied by chemical interactions between the storage rock formation, existing fluids (e.g. brine) and injected CO2. Depending on the mineralogy and initial petrophysical properties of the rock formation, such reactions may also alter the petrophysical properties of the rock through dissolution, precipitation, fines migration and
-
Imbibition into Capillaries with Irregular Cross Sections: A Modified Imbibition Equation for Both Liquid–Gas and Liquid–Liquid Systems Transp Porous Media (IF 2.376) Pub Date : 2020-10-29 Xiaolong Peng, Xiangzeng Wang, Xinqian Lu, Nan Wei, Fanhua Zeng
Due to discrepancies observed between many experimental results and predictions from the Bell–Cameron–Lucas–Washburn (BCLW) imbibition equation, the BCLW equation was often modified by considering the effects of pore/throat characteristics. As previous works mainly focused on liquid–gas systems, the effects of the viscosity ratios are neglected. In this study, the nonwetting-/wetting-phase-viscosity
-
Pore-Network Stitching Method: A Pore-to-Core Upscaling Approach for Multiphase Flow Transp Porous Media (IF 2.376) Pub Date : 2020-10-27 Amir H. Kohanpur, Albert J. Valocchi
Pore-network modeling is a widely used predictive tool for pore-scale studies in various applications that deal with multiphase flow in heterogeneous natural rocks. Despite recent improvements to enable pore-network modeling on simplified pore geometry extracted from rock core images and and its computational efficiency compared to direct numerical simulation methods, there are still limitations to
-
Contact Angles in Two-Phase Flow Images Transp Porous Media (IF 2.376) Pub Date : 2020-10-27 Hamid Hosseinzade Khanamiri, Per Arne Slotte, Carl Fredrik Berg
In this work, we calculate contact angles in X-ray tomography images of two-phase flow in order to investigate the wettability. Triangulated surfaces, generated using the images, are smoothed to calculate the contact angles. As expected, the angles have a spread rather than being a constant value. We attempt to shed light on sources of the spread by addressing the overlooked mesh corrections prior
-
A Mechanistic Pore-Scale Analysis of the Low-Salinity Effect in Heterogeneously Wetted Porous Media Transp Porous Media (IF 2.376) Pub Date : 2020-10-09 Michael G. Watson, Steven R. McDougall
Low-salinity (LS) waterflooding has been a topic of substantial recent interest in the petroleum industry. Studies have shown that LS brine injection can increase oil production relative to high-salinity (HS) brine injection, but contradictory results have also been reported and a mechanistic explanation of these findings remains elusive. We have recently developed a pore-scale model of LS brine injection
-
Mechanics of Saturated Colloidal Packings: A Comparison of Two Models Transp Porous Media (IF 2.376) Pub Date : 2020-10-07 Atiya Badar, Mahesh S. Tirumkudulu
A successful prediction of the response of poroelastic material to external forces depends critically on the use of appropriate constitutive relation for the material. The most commonly used stress–strain relation that captures the behavior of poroelastic materials saturated with a liquid is that proposed by Biot (J Appl Phys 12:155–164, 1941). It is a linear theory akin to the generalized Hooke’s
-
Coupling Between Poromechanical Behavior and Fluid Flow in Tight Rock Transp Porous Media (IF 2.376) Pub Date : 2020-10-06 Kiseok Kim, Roman Y. Makhnenko
Proper characterization of the mechanical and flow properties of participating rock formations is crucial for subsurface geo-energy projects, including hydrocarbon extraction, geologic carbon storage, and enhanced geothermal systems. Application of mechanical and hydraulic pressures changes the porosity of rock and modifies flow paths. For low-permeable or “tight” rock that mainly contains nanoscale
-
Petrophysical Correlations for the Permeability of Coquinas (Carbonate Rocks) Transp Porous Media (IF 2.376) Pub Date : 2020-10-04 M. C. O. Lima, E. M. Pontedeiro, M. Ramirez, A. Boyd, M. Th. van Genuchten, L. Borghi, P. Couto, A. Raoof
The pore structure of many carbonate formations is known to be very complex and heterogeneous. Heterogeneity is manifested by the presence of different types, sizes, and shapes of pores resulting from sedimentation and diagenetic actions. These complexities greatly increase uncertainties in estimated rock hydraulic properties in that different permeability values may occur for samples having similar
-
Upscaled Model for Multicomponent Gas Transport in Porous Media Incorporating Slip Effect Transp Porous Media (IF 2.376) Pub Date : 2020-10-03 C. Moyne, T. D. Le, G. Maranzana
A two-scale model for multicomponent gas transport in porous media is developed. At the pore-scale, Stefan–Maxwell formulation is used to describe the multi-gas transport together with the mass and momentum conservation equations, whereas on the solid/fluid interface, a slip velocity according to the Kramers–Kistemaker condition is taken into account. The pore-scale equations are then upscaled using
-
Fluid Displacement in a Dual-Permeability Medium with Local Capillary Equilibrium Transp Porous Media (IF 2.376) Pub Date : 2020-10-03 Andrey Afanasyev
The solution to the Buckley–Leverett problem in fractured porous media is investigated by applying the dual-porosity dual-permeability model. It is shown that the dual-permeability medium is equivalent to an upscaled homogenized medium at long injection times when local capillary equilibrium is established. Simple analytical relationships for the petrophysical properties and saturation functions of
-
Mathematical Model of Water Alternated Polymer Injection Transp Porous Media (IF 2.376) Pub Date : 2020-10-01 Bruno J. Vicente, Viatcheslav I. Priimenko, Adolfo P. Pires
Chemical enhanced oil recovery (EOR) methods include the injection of aqueous polymer solutions slugs driven by water. Polymer solutions increase water viscosity, decreasing the water phase mobility and improving oil recovery through better sweep efficiency. In this paper, we present the water alternated polymer EOR technique, which is based on the injection of successive polymer slugs alternated by
-
Lagrangian Complexity Persists with Multimodal Flow Forcing in Compressible Porous Systems Transp Porous Media (IF 2.376) Pub Date : 2020-10-01 M. G. Trefry, D. R. Lester, G. Metcalfe, J. Wu
We extend previous analyses of the origins of complex transport dynamics in compressible porous media to the case where the input transient signal at a boundary is generated by a multimodal spectrum. By adding harmonic and anharmonic modal frequencies as perturbations to a fundamental mode, we examine how such multimodal signals affect the Lagrangian complexity of flow in compressible porous media
-
A New Multiscale Computational Model for Low Salinity Waterflooding in Clay Bearing Sandstones Transp Porous Media (IF 2.376) Pub Date : 2020-10-01 Sidarta A. Lima, Márcio A. Murad, Bruno J. Vicente, Adolfo P. Pires
We develop a new multiscale model to compute effective properties such as relative permeability, contact angle and partition coefficients in low salinity enhanced oil recovery processes for two-phase flow in sandstones containing reactive surfaces of kaolinite clay. In this setting, we construct a three-scale approach which entails the local nanoscale description ruled by the electro-chemistry of a
-
On the Performance of the Node Control Volume Finite Element Method for Modeling Multi-phase Fluid Flow in Heterogeneous Porous Media Transp Porous Media (IF 2.376) Pub Date : 2020-09-30 Abdul Salam Abd, Ahmad S. Abushaikha
In this paper, we critique the performance of the node control volume finite element (NCVFE) method for modeling multi-phase fluid flow in heterogeneous media. The NCVFE method solves for the pressure at the vertices of elements and a control volume mesh is constructed around them. Material properties are defined on elements, while transport is simulated on the control volumes. These two meshes are
-
On the Modelling of Immiscible Viscous Fingering in Two-Phase Flow in Porous Media Transp Porous Media (IF 2.376) Pub Date : 2020-09-29 K. S. Sorbie, A. Y. Al Ghafri, A. Skauge, E. J. Mackay
Viscous fingering in porous media is an instability which occurs when a low-viscosity injected fluid displaces a much more viscous resident fluid, under miscible or immiscible conditions. Immiscible viscous fingering is more complex and has been found to be difficult to simulate numerically and is the main focus of this paper. Many researchers have identified the source of the problem of simulating
-
Modelling of Transportation Process in Plane Flows with Stagnation Points Transp Porous Media (IF 2.376) Pub Date : 2020-08-29 Boris S. Maryshev, Michael A. Zaks
We study transport of passive tracers by plane laminar flows with stagnation points. This setup serves as a simple model of transport in porous media. Close to stagnation points, the flow velocity is much lower than on the average. Many experimental data disclose that transport through porous media is slower than predictions of the standard advection-diffusion model. Commonly, in descriptions of flows
-
Darcy–Brinkman Flow in a Corrugated Curved Channel Transp Porous Media (IF 2.376) Pub Date : 2020-09-21 Nnamdi Fidelis Okechi, Saleem Asghar
A theoretical analysis of a viscous flow in a corrugated curved channel enclosing a porous medium is carried out. The alignment of the corrugations of the outer and the inner curved walls is taken arbitrarily, and the corrugations are considered to be sinusoidal in nature with periodicity. The flow problem is described by Darcy–Brinkman model, derived in the curvilinear coordinates. The effects of
-
Semi-Analytical Solution of Chemical Flooding in Heterogeneous Non-Communicating Layers with a Focus on Low Salinity Water Flooding Transp Porous Media (IF 2.376) Pub Date : 2020-09-19 Hasan Al-Ibadi, Karl D. Stephen, Eric J. Mackay
Chemical flooding has been implemented intensively for some years to enhance sweep efficiency in porous media. Low salinity water flooding (LSWF) is one such method that has become increasingly attractive. Historically, analytical solutions were developed for the flow equations for water flooding conditions, particularly for non-communicating strata. We extend these to chemical flooding, more generally
Contents have been reproduced by permission of the publishers.