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Definition of miscible fluids

Definition of miscible fluids. An immiscible liquid cannot be mixed with another liquid without separating from it: 2. The critical pressure and temperature of CO2 above which it has a density similar to that of a liquid and a lower density are 1,070. Differences between the fluid densities and viscosities, however, can lead to order-of-magnitude increase in blend times relative to the blending of single-fluid systems. Oct 10, 2023 · We investigate the influence of rotation on the onset and saturation of the Faraday instability in a vertically oscillating two-layer miscible fluid using a theoretical model and direct numerical simulations (DNS). Aug 22, 2023 · AbstractA single-phase incompressible bicomponent transient oil mixing model was established based on the mechanism of flow, heat, and mass transfer of refined oils to obtain the flow field and concentration distribution of the component at the mixed Practical ApplicationsA single-phase incompressible two-component transient oil-mixing model is established to obtain the flow field and John A. Normal distillation of these liquids would need quite high temperatures. Pojman: Miscible Fluids in Microgravity (MFMG): A Zero-Upmass Investigation on the International Space Station does not apply. Fluid manufacturers have a number of ways to prevent this. Two types of miscible displacement exist: first-contact and multicontact miscible displacement. Miscible injection is a proven, economically viable process that significantly increases oil recovery from many different types of reservoirs. Miscible fluids can mix indefinitely, implying that they too have complete solubility in just about any Apr 16, 2024 · Answer. Hence, miscibility is the property of two or more substances to completely dissolve in each other in whatever proportions. The mutual solubility is infinite in fully miscible systems, while it is zero in immiscible systems. Facin a, Paulo C. Many different metals are miscible in the liquid state, occasionally forming recognizable compounds. 4–10 When fluids are miscible Jun 28, 2018 · The invading fluids were all Newtonian, and the experimental sequences performed were designed to reveal the effect of each single parameter: viscosity, density difference, and interfacial tension. We call these liquids miscible. Apr 15, 2019 · To quantify the mixing efficiency of the two miscible fluids in the lid-driven cavity flow, coefficient of variation (COV) was calculated to represent the standard deviation of liquid concentration [39]: (8) COV = ∬ A C avg-C i 2 d A 0. Fluid volumes (liquids and gasses) aren't necessarily additive. May 12, 2015 · Drops and jets of liquids that are miscible with the surrounding bulk liquid are present in many processes from cleaning surfaces with the aid of liquid soaps to the creation of biocompatible implants for drug delivery. Further, Srinivas et al. Dec 1, 2023 · The fluid that they had considered was micropolar fluid and observed that the entropy generation reduces as the micropolarity of the fluid increases and the entropy generation increases as the angle of inclination of the channel increases. Feb 4, 2019 · Miscible Definition. An equation is solved for the variable X ‾ which reduces to the usual definition of volume fraction when there is a sharp interface in a computational cell and to the species number Fundamentals of Fluid Flow in Porous Media Chapter 5 Miscible Displacement Fluid Properties in Miscible Displacement: Fluid Viscosity Mobility ratio in a displacement process is a direct function of the viscosities of displaced and displacing fluids. We assume that both fluids are Newtonian, miscible, non-reactive, and incompressible. The ability to mix two compounds to form a homogeneous mixture, is referred to as miscible liquids. Define miscible. Mar 1, 2021 · In the present contribution, we consider the miscible displacement of one incompressible fluid by another in a reservoir, described by a time-dependent coupled system of nonlinear partial differential equations, that is a basic (but meaningful) model instrumental to applications such as oil recovery and environmental pollution [29], [30], [31 Jun 16, 1998 · Scaling Miscible Fluid Displacements Energy & Fuels, Vol. We also assume that the dynamic viscosity of Fluid II is a function of solute concentration c, contained in Fluid I. 2-propanone and ethyl ethanoate (ethyl acetate) pentane and octane. This term is most applicable to liquids but can be used for solids as well as gases. Definition. " Components of an immiscible mixture will separate from each other. [10] studied the non-miscible micropolar fluids passage through an inclined Jul 1, 2016 · These fluid properties should be determined to reflect accurately the change of fluid properties with pressure during pressure depletion, gravity segregation, or gas injection. 1. (Nor does it apply to the transition zone between two miscible fluids. In this example, mixing (i. As the two fluids are identical, the flow fields for different H1 / H are totally the same, as shown in Fig. Despite the fact that the density gradient continuously changes, viscous RT fingering in miscible fluids in a porous medium is generally characterized in terms of the Rayleigh–Darcy number, 7 Other articles where miscibility is discussed: solution: …that all gases are completely miscible (mutually soluble in all proportions), but this is true only at normal pressures. A combination of fluids results in a mixture that is different Sep 13, 2019 · Immiscible Definition. Miscible displacement processes, in which a viscous fluid is injected into a fluid-saturated porous medium, are relevant in a number of problems including enhanced oil recovery (Lake Reference Lake 1989), carbon capture and storage (Huppert & Neufeld Reference Huppert and Neufeld 2014) and subsurface contaminant transport (Abriola Reference Abriola 1987). Emulsions are colloids, which are homogeneous mixtures consisting of particles larger than molecules that scatter light, but are small enough that they don’t separate. Middleman applied a finite difference scheme to independently solve the drag and pressure flows of a power-law fluid in a rectangular duct. Nov 21, 2023 · A liquid is said to be miscible with respect to another liquid when the two liquids mix fully and leave no distinct layer between them in the solution. Answer. Mar 7, 2021 · The mixing of stratified miscible fluids with widely different material properties is a common step in biopharmaceutical manufacturing processes. Intermolecular forces ( hydrogen bonding, London dispersion forces, dipole-dipole forces) also play their part in miscibility, but that's another story. May 22, 2023 · For both miscible and immiscible fluid pairs, when the fluid in the central stream (of viscosity μ 1 ⁠) is significantly more viscous than the fluid in the laterally injected streams (of viscosity μ 2 ⁠), so that the ratio between the viscosities is smaller than 0. dichloromethane and 2-butanone. This has an important advantage in separating molecules like this from mixtures. Examples of Miscible in a sentence. Moreover, the mixing performance in two-fluid systems can be strongly dependent Jan 12, 2015 · An accumulator with a piston is used to pump the displaced fluid to the cell. We study how shear-thinning and increased viscosity contrast between the fluids affect the displacement. Splitting water-miscible cutting fluids with salts is still widely practiced for conventional emulsions. This is done to prevent the pump from coming in contact with viscous fluids. The term, "miscible fluid displacement", may be defined as any oil-recovery displacement process where there is an absence of a phase boundary or interface between the displaced and displacing fluids. Mar 29, 2021 · However, above that pressure, it acts as a miscible solvent, bonding with the hydrocarbon. 5 in order to ensure corrosion and bacteriological protection. Use Henry’s law to determine the solubility of this gaseous solute when its pressure is 101. In contrast with fingering between two semi-infinite Jun 16, 2018 · Abstract Fingering is a hydrodynamic instability that occurs when a more mobile fluid displaces a fluid of lower mobility. For example, two common liquids—namely water and ethyl alcohol—are completely miscible whether the solution is 1% water and 99% ethyl alcohol, 50% of both, or 1% ethyl alcohol and 99% water (Net Industries 2017). Therefore, the subject is traditionally divided into immiscible and fully miscible VF. Emulsions consist of two parts: the dispersed phase and the The deformation of an initially circular miscible blob in a rectilinear displacement is investigated numerically for porous media when the blob is more viscous than the displacing fluid. 9. E. The same liquid can be Jul 15, 2023 · By contrast with the solubilities of solids in liquids, a great many liquid pairs are completely miscible. Since the contents in the glass became cloudy, it was apparent to the girl that the miscible solution in her glass had more than one liquid in it. That is, regardless of the proportions in which the two liquids are mixed, each will dissolve completely in the other. Many advanced materials are The classical thermodynamics definition of miscibility is the condition of pressure and temperature at which two fluids, when mixed in any proportion, form a single phase. e Jun 12, 2015 · Miscible flooding. Section 3 is the discussion of the Jun 15, 2023 · It can be seen that the fluid forms two adsorbed peaks on the pore surface. Periodic boundary conditions are imposed in the horizontal directions of a rectangular domain, with no-slip top and bottom walls. Aug 1, 1986 · An understanding of the definition ofmiscibility and how injected fluids react with reservoir fluids is necessary tounderstand these processes. Paulo C. Chen 7 observed that the finger width in the immiscible case was much larger than that in the miscible case. " In contrast, fluids that do mix together are called "miscible. Dec 1, 2007 · Miscible Fluids in Microgravity (MFMG) was a zero-upmass investigation performed on the International Space Station. The 3 miscible fluids that were injected into Carbopol were water (H 2 O), glycerin 45% (G45), and glycerin 58% (G58). 1 °C. Once the cell is filled with the displaced fluid, valve (a) is switched to the other position, and the displacing fluid (water) is injected into the cell with Pump 2. ) Van der Waals was the first to propose an alternate definition of an immiscible interface [1]. Notice that in the presence of water, phenylamine (or any other liquid which is immiscible with water) boils well below its normal boiling point. adj. A remarkable phenomenon involving two miscible liquids is now reported: placing a drop of isopropanol on a water surface results in a 1 Introduction. , antibiotics, amino acids, vitamins) present in aqueous process streams such as fermentation broths or plant or animal tissue extracts [88]. He further provided shape factors for particular importance because miscible interfaces are ubiqui-tous in nature and industry. Mar 31, 2019 · A combination of fluids results in a mixture that is different from the two parts added. Water miscible oils (macro emulsions or micro emulsions containing more than 30 percent oil) also known as soluble oils. When two miscible fluids are brought into contact, there is a sharp interface at the beginning which vanishes into a transition zone, as the differences between Jun 1, 2023 · Fig. Two liquids are miscible if they will mix together to form a single uniform liquid. Mobility ratio is one of the most important parameters of a miscible displacement and has a profound influence on volumetric (macroscopic) sweep efficiency of the solvent and on the integrity of solvent physics of the spreading miscible fluids studied here. For example, kerosene and crude oil are miscible at room conditions, whereas stock tank and water are clearly immiscible. Dec 12, 2022 · The displacement of a shear-thinning fluid by a denser and less viscous Newtonian fluid in a vertical duct is investigated using experiments and numerical simulations. Our results show that the degree of shear-thinning significantly influences the development of interfacial patterns and the May 6, 2005 · Viscous fingering of a miscible high viscosity slice of fluid displaced by a lower viscosity fluid is studied in porous media by direct numerical simulations of Darcy’s law coupled to the evolution equation for the concentration of a solute controlling the viscosity of miscible solutions. Water-miscible cutting fluids are used for machining processes where the need for cooling is greater than the need for lubrication. Modelling of the wetting phenomenon for multicomponent and multiphase fluids is a knotty issue. On the other hand, it is important to compare VF dynamics at Oct 8, 2021 · Fluid I enters from the center and spreads radially to displace Fluid II towards the peripheral outlet of the flow domain or Hele-Shaw cell. Water and alcohol are simple examples of miscible liquids. A non-linear lattice-Boltzmann model for ideal miscible fluids. Learn more. 06, a cylindrical thread is formed (Cubaud and Mason, 2012). 45 × 10 −3 g of the solute. 26 kPa (152 torr) resulted in the dissolution of 1. Worker Exposure - the exposure of a worker to metalworking fluids and contaminants that would occur without regard to the use of respirators. mis′ci·bil′i·ty n. miscible synonyms, miscible pronunciation, miscible translation, English dictionary definition of miscible. Oct 27, 2022 · Exercise 11. 11 shows the mixing of two identical miscible shear-thinning fluids at different initial liquid placement. All supercritical fluids are completely miscible with each other, so for a mixture a single phase can be guaranteed, if the critical point of the mixture is exceeded. For example, for the soluble surfactant spreading case, the velocity profile shows a power-law behaviour14, u Jan 1, 2022 · Previous models mostly focus on one-component fluids or binary immiscible liquid mixtures. Jul 31, 2017 · The way two liquids interact depends on how miscible they are. Sep 29, 2023 · The effect of the initial condition upon the transport dynamics of miscible flowing fluids in a porous medium is investigated under viscosity and density contrasts. 0 mL sample of water at 0 °C to an atmosphere containing a gaseous solute at 20. 3 Microfluidic platforms are practical for generating arrays of monodisperse bubbles and droplets when immiscible fluid streams are focused into a single channel. Many of them are hygroscopic. The pH value is a fast indicator of applied mix condition. 12, No. A Peclet number including diffusion and sweep rate effects is found to correlate experimental Jan 25, 2012 · Dispersion curves for (a) miscible fluids (G = 0; dots), (b) fluids with surface tension (G = . After the student realized that sugar is completely soluble in water, she May 1, 2021 · The present work concerns with an entropy production of two-phase non-miscible Newtonian and micropolar fluid in a rectangular conduit. Viscous fingering is often, though not always, undesirable in industrial processes, particularly secondary petroleum recovery. Learn more in the Cambridge English-Chinese simplified Dictionary. The process is, however, frequently rendered difficult or The mobility ratio (M) of a displacement process is defined as the mobility of displacing fluid divided by the mobility of the displaced fluid. The following pairs of liquids are miscible. The more the substance can be dissolved, the more soluble it is. methanol and ethanoic acid. 01 MPa and 0. 3. For example, kerosene and crude oil are miscible at room conditions, whereas stock-tank and water are clearly immiscible. Nov 1, 2022 · Dynamic behavior of miscible CO 2-oil mixtures is the heart of CO 2 enhanced oil recovery (EOR) and CO 2 storage in shale reservoirs. The components are said to be "immiscible. Common Misspellings: mixable, misible, micible. We find in the parameter space spanned by the Péclet number and log-mobility ratio the existence of a new lump-shaped instability zone between two distinct Aug 1, 2004 · Future Generation Computer Systems 20 (2004) 945–949. Exposing a 100. An understanding of the definition of miscibility and how injected fluids react with reservoir fluids is necessary to understand these processes. Experiments of a turbulent mixing zone created by the Faraday instability at the statically stable interface between salt and fresh water are presented. Solid solutes generally have a limit on the amount that May 12, 2023 · Even for a purely viscous fluid, the mathematical problem involves a partial differential equation, solving which requires in most cases use of numerical methods. A supercritical fluid can effuse through solids like a gas and dissolve materials like a liquid. When the primary source of the mobility difference is viscosity, the instability is termed viscous fingering. Abstract. The 1st adsorption layer is mainly composed of CO 2 with a peak density of 1. In this model, diffusion is assumed to be isotropic which might not be the case in a real Nov 1, 2000 · Direct numerical simulations (DNS) are presented of three-dimensional, Rayleigh–Taylor instability (RTI) between two incompressible, miscible fluids, with a 3:1 density ratio. Some are Oct 3, 2020 · Emulsion Definition. Identify the predominant type of intermolecular attraction between each pair. Used of liquids. 2. External uniform magnetic fields induce labyrinthine fingering instability and secondary waves. This is an explanation of the miscibility of fluids. You can mix them in any proportions and still get a single liquid. He assumed Feb 15, 2022 · Thermodynamic phase changes of the fluids inhabiting the nanopores are also included in the VLE calculation to clarify the effect of pore-wall proximity on the molecular response. Jun 26, 2018 · Miscible liquids generally mix without limit, meaning they are soluble at all amounts (Suico 2017). ıs O. However, the omnipresent nanopores not only raise the difference in CO 2-reduced oil viscosity through thermodynamic effect from that of bulk condition but also add additional kinetic resistance resulting from a pore surface. Water and glycerol are miscible in all proportions, allowing access to Dec 8, 2016 · The meaning of MISCIBLE is capable of being mixed; specifically : capable of mixing in any ratio without separation of two phases. An…. Immiscible fluids (both liquids and gases) move as separate phases within the subsurface. Our analytical approach utilizes Floquet analysis to solve a set of the Mathieu equations obtained from the linear stability analysis. Wet Metalworking Fluid Environment - the workplace environment in which wet metalworking operations occur. Mar 31, 2019 · Think of miscibility as "mixability" and it's easy to remember. Philippib,∗,Lu. Miscibility Through research over the past 25 years, miscible-phase displacementprocesses that use certain gases as injectants have been developed assuccessful means for increasing oil recovery from Oct 27, 2014 · The miscible fluids used here are mixtures either of water and glycerol or of two mineral oils (Fisher Scientfic). May 1, 2008 · In the present contribution, we consider the miscible displacement of one incompressible fluid by another in a reservoir, described by a time-dependent coupled system of nonlinear partial Jan 30, 2023 · Steam distillation. dos Santos b. Nov 1, 2018 · This paper has presented a new number fraction based five-equation model for miscible fluids incorporating viscosity, species diffusivity and thermal conduction. The addition of salts such as sodium chloride, magnesium chloride, or calcium chloride affects the efficiency of the emulsifiers. This breaks down the emulsion and the lighter oil phase floats to the top. 001 °C, respectively. g. Ethanol is miscible with water and gives a homogeneous Miscible displacement has been developed as a successful EOR process in the past 25 years. Most miscible flooding projects use CO 2 or nitrogen as solvents to increase oil recovery, but other injectants are sometimes used. These liquids are immiscible. Miscible Definition: soluble, able to be mixed to form a solution. 71 g/cm 3. For example, water and ethanol always seem to be miscible because both disintegrate with each other in all concentrations. They can formulate the fluid so it provides very little nutrient material, reducing growth of the germs. This page introduces the terms miscible and immiscible, and shows how you can separate two immiscible liquids. Linear stability analysis by Hejazi May 1, 2011 · Research Highlights Interfacial instability of miscible magnetic fluids in a Hele-Shaw cell is investigated. 6 psia and 31. The two-layer system, contained in a cuboidal tank of large dimensions, is accelerated vertically and periodically at various frequencies and amplitudes for three different density . John A. Some examples of immiscible (multiphase) flow include: gasoline or dry cleaning solvents in groundwater; air and water in the unsaturated zone; oil, gas, and water in a petroleum reservoir; water and steam in a geothermal reservoir. Exercise 7. a Jan 1, 2013 · For metalworking water-miscible fluids pH values range from 8. Sharp gradients of concentration, temperature, density or viscosity define boundaries between miscible fluids: this is the case of boundaries defining ocean currents [10] and silicate fluids in earth mantle [11], or the The following compounds are liquid at room temperature and are completely miscible with water; they are often used as solvents. Chemistry Capable of being mixed in all proportions. Sep 18, 2023 · The high-definition camera system can capture and record the fluid’s phase changes in the PVT cell over time through a fully transparent sapphire window. MISCIBLE translate: （液体）可容混的. D is the diffusion coefficient and p is the pressure in the fluid. Decane is mainly stably distributed in the bulk phase region and forms miscible fluid with CO 2. In this model, the flow regime is divided in two distinct parts in such a way that Newtonian fluid takes place in the lower portion of the channel whereas non-Newtonian micropolar fluid flows in upper half of the channel. Methods: The lattice Boltzmann Method (LBM) is employed to solve the governing equations. 8 it can be assumed that the fluid contains bacteria and mix becomes unstable, corrosion protection reduces, and an odor may occur… Water-miscible - designed to be diluted with water. Immiscibility is the property where two substances are not capable of combining to form a homogeneous mixture. How to use miscible in a sentence. Aug 2, 2021 · In miscible fluids, relaxation of the concentration gradient changes the density gradient within the diffusive layer, unlike its immiscible counterparts. The height of liquid 1 in the LDC is denoted by H1, and H1 / H represents the volume fraction of liquid 1. 1 11. 1. Overgrowth of the wrong microbes can make the fluid smell very bad. where C avg is average scalar concentration over a selected plane and The phrase is most commonly used to describe fluids, although it may also be used to describe solids and gasses. Examples: Alcohol and water are miscible. 5 C avg (9) C avg = 1 A ∬ A C i d A. He assumed Jan 12, 2015 · where u is the total flux of the fluid per unit area, c is the volume fraction of the solvent, and μ(c) is the viscosity of the homogeneous fluid mixture with a solvent volume fraction c. Typically, supercritical fluids are completely miscible with each other, so that a binary mixture forms a single gaseous phase if the critical point of the mixture is exceeded. The PVT system’s maximum working pressure and temperature are 150 MPa and 200 °C, with accuracies of 0. Miscible and immiscible. Answer a: Answer b: The classical thermodynamics definition of miscibility is the condition of pressure and temperature at which two fluids, when mixed in any proportion, form a single phase. Black oil fluid properties are typically estimated from constant composition expansion (CCE), differential liberation (DL) and separator tests. A water flood would not be a miscible fluid displacement, although cycling in a condensate reservoir would be. Measuring Dec 16, 2014 · Multiphase flows in microgeometries encompass a wide range of fluid phenomena and find use for a variety of applications, including oil and gas recovery, 1 biomaterial synthesis, 2 and drug discovery. 3. Other liquids, like oil and water, do not want to mix; they stay separate. Although the interactions of immiscible drops and jets show similarities to miscible systems, the small, transient interfacial tension associated with miscible systems create Jun 4, 2019 · Multicomponent fluids contain miscible and/or immiscible elements. If pH value is under 8. IMMISCIBLE definition: 1. This page provides an overview of the fundamental Immiscible-liquid solvent extraction is a well-established practice for recovery, concentration, and purification of organophilic solutes (e. Definition of Miscible. 001; squares) showing the effect of surface Mar 13, 2018 · A solution is only formed when the solute can be dissolved in the solvent. Relative permeability for the near-miscible state is estimated from normalized Gibbs free energy (GFE) based interpolation. At high pressures, pairs of chemically dissimilar gases may very well exhibit only limited miscibility. Solutions are obtained for the Navier–Stokes equations, augmented by a species Water-miscible cutting fluids offer a friendly environment to bacteria and fungi: warmth, moisture, nutrients. This can be used to quantify the mass transfer between phases, immiscible and partially miscible fluid mixtures Nov 1, 2021 · We study experimentally the effect of an imposed mean flow on a buoyancy-driven exchange flow of two miscible fluids of the same viscosity in a long tube, oriented close to horizontal. May 15, 2015 · Increased understanding of the fluid dynamics and microchannel designs enable 3D hydrodynamic focusing and provide for control of the interfaces between miscible fluids. 3D focusing systems can be designed such that diffusion at the interface between the flows can be manipulated to control the constituents of each fluid. 2 7. 05; circles), and (c) miscible reactive fluids (κ = . 3 kPa (760 torr). These products form, when added to water, an emulsion that can be either milky or transparent, depending on the amount of oil and additives incorporated in the individual formulation. The goal of MFMG was to determine if interfacial phenomena seen with immiscible In this type of mixture, you cannot tell the liquids apart anymore—they blend completely (Figure 1, left). Oct 15, 2021 · In short, the pure heavy fluid mixes more slowly than the pure light fluid: an initially symmetric double delta density probability density function (PDF) is rapidly skewed and, only at long times Supercritical fluids have properties between those of a gas and a liquid. capable of two fluid substances being completely mixed together. Oct 18, 2012 · Metalworking Fluids (MWF), also called metal removal fluids, are segregated into four main categories: 1. 4, 1998 803 If the molecular diffusion is negligible, the longitudinal Peclet number and the dispersion number become 3 days ago · Definition of 'miscible' Word Frequency. Jan 1, 1975 · The theory of dispersion in porous media is the qualitative description and the quantitative estimate of the behavior of miscible fluids displacing one another in a porous medium. Here is the definition of miscible as used in chemistry, chemical engineering, and physics. Solubility, a more general term than miscibility, refers to the ability of a substance -- specifically, the solute -- to be dissolved in the solvent. Mixing of two compounds always forms a homogeneous mixture because the mixing is equal in the proportions. The process of mixing two different compounds to get a homogeneous mixture. Model and methodology2. However, exceptions are known in systems where one component is much more volatile than the other, which in some cases form two immiscible gas phases at high pressure Introduction: This study investigates the displacement of two miscible fluids within an inclined porous medium at the pore scale, highlighting how the pore-scale microstructure, inclination angle, and viscosity ratio affect the interfacial instability between two fluids during displacement processes. An emulsion is defined as a mixture of two or more normally immiscible (unmixable) liquids. Nov 20, 2020 · Glycerol was used as the more viscous fluid in both cases, while paraffin oil and water were used as the less viscous fluids in the immiscible and miscible cases, respectively. For miscible displacements, assuming the relative permeability relationships of the different non aqueous fluids are the same so: […] Miscible liquids are defined as those liquids which when combined in any proportion or concentration, form a homogenous mixture. In an immiscible mixture, you can see different layers of liquids (Figure 1, right). ´. Neat oils (not mixed with water), also known as straight oils. Such flows have attracted significant attention due to their importance in many fields of science and engineering, such as $\mathrm {CO}_2$ sequestration and aquifer remediation Introduction. 67 g/cm 3, while the peak density of CO 2 in the 2nd adsorption layer is 0. Jan 15, 2022 · The rest of the paper is organized as follows: Section 2 introduces materials and experimental procedure, including tests of relative permeability of three miscible types, seepage capacity of fluids in reservoirs with different pore scale effect, CO 2-SAG and CO 2 flooding by long core displacement tests, etc. Fluid–fluid miscibility plays an important role in VF dynamics, and the VF pattern can change appreciably based on the miscibility of the two fluids. 11 (a). Effects of magnitudes and sweep rates of the external magnetic field are studied experimentally. The immiscible process best applies to heavy oils and the miscible process to light oils. The mixing and demixing phenomena are important in chemical engineering and material fabrication 1,2. 8 to 9. ke xa jz iu uz ec wl pb xw ta