Research results on the effects of magnetic fields on crude oil

Mamulaishvili, Nora; Partskhaladze, G.; Chavleshvili, Gocha; Janelidze, Otar; Салимова, Н. А.

doi:10.30574/gjeta.2020.5.3.0108

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…For this study, the decrease in interfacial tension and then the decrease in the viscosity of deposits of ARPD is the most significant phenomenon. Therefore, work was carried out in the direction of reducing the viscosity of ARPD deposits [17] (Table IV). The object of study was surfactants in concentrations ranging from 0.01% to 2.0 wt%.…”

Section: Testing Of Surfactants and Nano Fluidmentioning

confidence: 99%

“…The physical parameters, such as the coefficient of surface tension, of the reagents were determined. The sulfanol solution had the lowest coefficient of surface tension, so it was preferred as an additive to washing liquids [17][18]. Authors in [6][7][8] propose the use of nanofluids containing nano-solutions for the effective flushing of oil deposits.…”

Section: Testing Of Surfactants and Nano Fluidmentioning

confidence: 99%

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A Technological Nanofluid for Washing Off Oil Deposits and Increasing Oil Recovery

Mamulaishvili¹,

Partskhaladze²,

Chavleshvili³

et al. 2023

Eng. Technol. Appl. Sci. Res.

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The productivity of wells in the late stage of oil production is directly related to oil deposits, which gradually form blockages, fill the pipeline, and interfere with the free movement of the flow of produced oil. Based on chemical composition, oil deposits are difficult to remove and require the selection of process fluids. An extractive method is proposed for the removal of oil deposits with the participation of process fluids, including nanofluids. The proposed nanofluid was prepared on the basis of low-viscosity petroleum oil with the addition of an organic solvent, a mixture of various classes of surface-active substances (surfactants), and alkali metal salts. The nanofluid contains a nanosolution based on alkali metal salts, with concentrations of Na3PO4=13700ppm, KCl=950ppm, and CaCl2=241ppm, which were determined by the readings of an ICPE-9820 spectrometer. It was found that the tested process fluid reduces the viscosity of deposits and interfacial tension and leads to an increase in fluid movement in the pipeline. The experiments were carried out in the direction of reducing the interfacial tension at the interface with the solvent. It was shown that the process of sediment reduction depends on the composition of the ARPD, the surfactant, the composition of the solvent, and the salinity of the nanosolution. It is advisable to flush oil deposits from the surface of the tubing using the process fluid when creating a circular circulation in a closed annular space - tubing – annulus circuit.

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Section: Testing Of Surfactants and Nano Fluidmentioning

confidence: 99%

Section: Testing Of Surfactants and Nano Fluidmentioning

confidence: 99%

A Technological Nanofluid for Washing Off Oil Deposits and Increasing Oil Recovery

Mamulaishvili¹,

Partskhaladze²,

Chavleshvili³

et al. 2023

Eng. Technol. Appl. Sci. Res.

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Enhancement of flow characteristics in waxy crude oil under the influence of subtle magnetic fields

Zhang,

Shi,

et al. 2024

Chemical Engineering Research and Design

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Research on Apparent Viscosity Variation of Water-in-Oil Waxy Crude Oil Emulsions Induced by a Magnetic Field

Zhu,

Hou,

Zhang

et al. 2024

Ind. Eng. Chem. Res.

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The formation of water-in-oil waxy crude oil emulsions deteriorates the rheological properties of the oil−water mixture. Magnetic treatment technology is an effective method to improve the flowability of a crude oil emulsion. A novel magnetic processing apparatus was developed. An experimental method was proposed for the magnetic treatment of the crude oil emulsion at particular shear rates. The apparent viscosity variation of the emulsion with the magnetic field intensity, magnetic field frequency, and magnetic treatment duration was investigated. When the viscosity measuring temperature is 27 °C, the optimal viscosity reduction effect is 12.48%, occurring at 120 mT, 250 Hz, and 15 min. When the viscosity measurement temperature drops to below the wax appearance temperature, the viscosity reduction rate under the same magnetic treatment conditions is 15.14%. The analysis demonstrates that the magnetic field increases the intermolecular dispersion force between wax molecules. The resulting formation of larger aggregations in the crude oil phase reduces the apparent viscosity of the crude oil phase and emulsion. The changing magnetic field generates an induced electromotive force at the dispersed phase and the oil−water interface film, causing the asphaltene molecules at the interface to oscillate. The interfacial film strength, emulsion stability, and interfacial tension are thus reduced, leading to a tendency for the dispersed phase to coalesce. The emulsion viscosity first decreases and then increases with the increase in field intensity. The emulsion viscosity reduction effect increases with the field frequency, and the reason for this is that a higher frequency promotes the oscillation of asphaltene molecules. The extension of the treatment duration has little contribution to the reduction of emulsion viscosity, and the considered effective treatment duration is 15 min. The research results provide a theoretical basis for the field application of viscosity reduction for water-in-oil waxy crude oil emulsions by magnetic treatment technology.

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Research results on the effects of magnetic fields on crude oil

Cited by 4 publications

References 2 publications

A Technological Nanofluid for Washing Off Oil Deposits and Increasing Oil Recovery

A Technological Nanofluid for Washing Off Oil Deposits and Increasing Oil Recovery

Enhancement of flow characteristics in waxy crude oil under the influence of subtle magnetic fields

Research on Apparent Viscosity Variation of Water-in-Oil Waxy Crude Oil Emulsions Induced by a Magnetic Field

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