The study of the filtration of liquids in the elastic-plastic regime with the integral law of fracture of rocks

As experience shows the development of deep oil fields with terrigenous reservoirs along with irreversibility of deformation there is a loss of stability of the formation's skeleton, i.e. he collapses in zones of strong pressure decrease. Particles of rock then are carried out from the formation by a flow of liquid. In this case, the composition of the liquid changes, a two-phase medium consisting of a liquid and a solid particles. In this paper we propose generalized dependencies of the variation porosity and permeability in the elastic-plastic mode of filtration The liquid taking into account the removal of the destroyed particles from the formation, where it is taken into account non-local character of the removal of the destroyed particles in time.

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The Numerical Simulation and Performance Analysis of the Vortex Pump for Solid-Liquid Two Phase Medium

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.527.88 ◽

2014 ◽

Vol 527 ◽

pp. 88-92

Author(s):

Peng Yun Song ◽

Hong Li Wang ◽

Peng Cheng He

Keyword(s):

Numerical Simulation ◽

Volume Fraction ◽

Internal Flow ◽

Solid Particles ◽

Two Phase ◽

Pump Head ◽

Phase Medium ◽

And Performance ◽

Solid Liquid ◽

The Impact

The numerical simulation of a 3-D model of the internal flow field for a Vortex slurry pump has been analyzed in this paper. The impact of different solids volume fraction on the distribution of solid particle was analyzed. The expression of the pump head and efficiency was derived by the energy equation. The results show that either on the long blades or on the short blades, the content of the solid particles increases with the increasing of the volume fraction. The results by the expression of the pump head and efficiency are compared with the results of the simulations. The conclusions show that the expression results are similar with the numerical simulation results, and the main factors of affecting the inner and outer characteristics are the solid particles.

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DISSIPATION OF THE ACOUSTIC OSCILLATIONS IN TWO-PHASE MEDIUM OF GAS-SOLID PARTICLES TYPE

Akustika ◽

10.36336/akustika20193267 ◽

2019 ◽

Vol 32 ◽

pp. 67-72

Author(s):

Anatoly Kochergin ◽

Grigory Pavlov ◽

Ksenia Valeeva

Keyword(s):

Solid Phase ◽

Sound Intensity ◽

Solid Particles ◽

Acoustic Energy ◽

Effective Diameter ◽

Frequency Noise ◽

Acoustic Oscillations ◽

Two Phase ◽

River Sand ◽

Phase Medium

The presented work is devoted to the study of the absorption of acoustic energy by a two-phase medium such as gas-solid particles. An experimental method was chosen for the study the effect on the distribution of acoustic pressure oscillations of various frequencies in a two-phase medium consisting of suspended solids (river sand, various powders, etc.), geometric and physical characteristics of the suspension. To determine the density of the created two-phase curtain was used capacitive concentration meterthat was developed by the employees of KNRTU-KAI named after A.N. Tupolev. It was also established that with a decrease in the effective diameter of the solid phase, the acoustic resistance of the studied curtain increases at frequencies of more than 800 Hz, while oscillations in the frequency range of 100 ÷ 400 Hz propogate almost unchanged. As a result of interference phenomena, a decrease in sound intensity occurs. Consequently, an increase in the number of particles in the path of wave propogation due to an increase in the amount of suspended matter and the thickness of the curtain contributes to a decrease in the radiation intensity. It has been experimentally proven that the effectiveness of reducing the intensity of acoustic oscillations in a two-phase medium such as "gas-solid particles" increases as a result of: -increasing the mass content of particles in the medium; -increasing the thickness of the medium; - reducing the density and particle size. To assess the reduction in the intensity of frequency noise when oscillations propogate in a two-phase medium, an empirical dependence was obtained.

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Evolution of Weakly Non-Linear Perturbations in Gas Suspension with Chemical Reaction

Siberian Journal of Physics ◽

10.54362/1818-7919-2011-6-3-21-32 ◽

2011 ◽

Vol 6 (3) ◽

pp. 21-32

Author(s):

Oleg V. Sharypov ◽

Igor S. Anufriev

Keyword(s):

Chemical Reaction ◽

Homogeneous Medium ◽

Finite Amplitude ◽

Solid Particles ◽

Two Phase ◽

Non Linear Equation ◽

Non Linear ◽

Phase Medium ◽

Nonequilibrium Chemical Reaction ◽

Kinetics Of Reaction

Dynamics of weak finite-amplitude perturbations in two-phase homogeneous medium (gas + solid particles) with nonequilibrium chemical reaction in gas is studied theoretically. Weakly non-linear model of plane perturbation evolution is substantiated by the instrumentality of asymptotic approach. The model takes into account wave-kinetic interaction and dissipation effects, including inter-phase heat and momentum transfer. Stability conditions for uniform state of the system are analyzed. Non-linear equation describing evolution of plane perturbations is derived under weak dispersion and dissipation effects. Solutions of evolution equation are obtained numerically in form of steady-state oscillations. Its parameters are determined by effect of nonlinearity and by relation between dissipative property of two-phase medium and given modeling characteristics of kinetics of reaction

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SYNTHESIS OF HYDROGEN IN ACOUSTOPLASMA DISCHARGE IN A LIQUID-PHASE STREAM

Alternative Energy and Ecology (ISJAEE) ◽

10.15518/isjaee.2019.01-03.042-048 ◽

2019 ◽

pp. 42-48 ◽

Cited By ~ 2

Author(s):

N. A. Bulychev

Keyword(s):

Liquid Phase ◽

Organic Compounds ◽

Electrode Materials ◽

Solid Phase ◽

Plasma Discharge ◽

Raw Material ◽

Two Phase ◽

Reduced Pressure ◽

External Power Source ◽

Phase Medium

In this paper, the plasma discharge in a high-pressure fluid stream in order to produce gaseous hydrogen was studied. Methods and equipment have been developed for the excitation of a plasma discharge in a stream of liquid medium. The fluid flow under excessive pressure is directed to a hydrodynamic emitter located at the reactor inlet where a supersonic two-phase vapor-liquid flow under reduced pressure is formed in the liquid due to the pressure drop and decrease in the flow enthalpy. Electrodes are located in the reactor where an electric field is created using an external power source (the strength of the field exceeds the breakdown threshold of this two-phase medium) leading to theinitiation of a low-temperature glow quasi-stationary plasma discharge.A theoretical estimation of the parameters of this type of discharge has been carried out. It is shown that the lowtemperature plasma initiated under the flow conditions of a liquid-phase medium in the discharge gap between the electrodes can effectively decompose the hydrogen-containing molecules of organic compounds in a liquid with the formation of gaseous products where the content of hydrogen is more than 90%. In the process simulation, theoretical calculations of the voltage and discharge current were also made which are in good agreement with the experimental data. The reaction unit used in the experiments was of a volume of 50 ml and reaction capacity appeared to be about 1.5 liters of hydrogen per minute when using a mixture of oxygen-containing organic compounds as a raw material. During their decomposition in plasma, solid-phase products are also formed in insignificant amounts: carbon nanoparticles and oxide nanoparticles of discharge electrode materials.

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THE CALCULATION OF THE EFFECTIVE BULK VISCOSITY OF TWO-PHASE SYSTEM CONSISTING OF LIQUID METAL OF THE WELD POOL AND SOLID PARTICLES REFRACTORY POWDER FILLER MATERIAL

10.21506/j.ponte.2018.2.6 ◽

2018 ◽

Vol 74 (2) ◽

Author(s):

Sergey Donskikh ◽

Semin V. N.

Keyword(s):

Liquid Metal ◽

Weld Pool ◽

Bulk Viscosity ◽

Solid Particles ◽

Filler Material ◽

Phase System ◽

Two Phase ◽

Refractory Powder ◽

Powder Filler

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Two-Phase Boundary Layer of Gas with Solid Particles

High Temperature ◽

10.1134/s0018151x20050107 ◽

2020 ◽

Vol 58 (5) ◽

pp. 716-732

Author(s):

A. Yu. Varaksin

Keyword(s):

Boundary Layer ◽

Phase Boundary ◽

Solid Particles ◽

Two Phase

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Some 1-substitution derivatives of 4-aryl-2,3-dihalogeno-1-naphthols

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19840110 ◽

1984 ◽

Vol 49 (1) ◽

pp. 110-121 ◽

Cited By ~ 1

Author(s):

Jiří Křepelka ◽

Drahuše Vlčková ◽

Milan Mělka

Keyword(s):

Thionyl Chloride ◽

Oxirane Ring ◽

Secondary Amines ◽

Two Phase ◽

Lytic Effect ◽

Primary And Secondary Amines ◽

Phase Medium ◽

Chloro Derivatives ◽

Derivatives Of

Alkylation of derivatives of 4-aryl-1-naphthols (I-V) by 2,3-epoxypropyl chloride in methanolic sodium hydroxide gave epoxy derivatives VI, VIII, IX, XI and XII, apart from products of cleavage of the oxirane ring, VII and X. Analogous alkylation of compounds I, IV and V by 2-(N,N-diethylamino)ethyl chloride hydrochloride in a two-phase medium afforded basic ethers XIII to XV. The cleavage of the oxirane ring in compound VI by the action of primary and secondary amines, piperidine and substituted piperazines led to compounds XVI-XXIV. Reaction of thionyl chloride with compounds XXI, XXII and XXIV gave chloro derivatives XXV-XXVII.Exposure of compound XXII to 4-methylbenzenesulfonyl chloride produced compound XXVIII, retaining the secondary alcoholic group. In an antineoplastic screening in vivo none of the compounds prepared had an appreciable activity. Compound XVII, being an analogue of propranolol, was used in the test of isoproterenolic tachycardia, and showed a beta-lytic effect comparable with that of propranol.

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