Conventional and high-field pulsed EPR experimental studies on Bazhenov oil formation under the influence of 50 Hz electromagnetic field

Murzakhanov, Fadis F.; Ponomarev, Andrey; Khelkhal, Mohammed A.; Amziane, Ouassil; Vakhin, Аlexey V.; Gafurov, Marat

doi:10.1016/j.fuel.2022.126580

Cited by 5 publications

(6 citation statements)

References 32 publications

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“…A1 was subjected to partial dissociation by dissolving it in deuterated toluene in proportions of 1:5 and 1:20 by volume. Of course, this degree of dilution was not enough for the complete destruction of the asphaltene aggregates [ 4 , 5 ], but as seen in our results, 1 H ENDOR can serve as a sensitive tool to follow the partial destruction of asphaltene aggregates, along with the electronic relaxation times (cf with [ 26 , 30 ]).…”

Section: Resultsmentioning

confidence: 81%

“…Asphaltenes contain intrinsic paramagnetic species (paramagnetic centers, PCs) to be studied with electron paramagnetic resonance (EPR) techniques [ 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 ]. Concentrations of PCs in asphaltenes can reach values of 10 22 spins per gram [ 13 ], meaning that every asphaltene molecule can be paramagnetic and that EPR is a suitable (valid) and unique tool for studies on PDS and PDS asphaltenes.…”

Section: Introductionmentioning

confidence: 99%

“…EPR is sensitive to various electron–nuclear, electron–electron, electron–lattice interactions and, correspondingly, to the nanoscale changes (up to 8 nm) of the local environment of paramagnetic centers. It is shown that PCs can serve as effective probes for PDS to follow the processes of various external treatments, such as having an influence on temperature [ 20 ], electromagnetic field [ 26 ], or supercritical water [ 33 ] and on other types of improved-oil-recovery (IOR) and enhanced-oil-recovery (EOR) methods [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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High-Field (3.4 T) Electron Paramagnetic Resonance, 1H Electron-Nuclear Double Resonance, ESEEM, HYSCORE, and Relaxation Studies of Asphaltene Solubility Fractions of Bitumen for Structural Characterization of Intrinsic Carbon-Centered Radicals

et al. 2022

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Petroleum asphaltenes are considered the most irritating components of various oil systems, complicating the extraction, transportation, and processing of hydrocarbons. Despite the fact that the paramagnetic properties of asphaltenes and their aggregates have been studied since the 1950s, there is still no clear understanding of the structure of stable paramagnetic centers in petroleum systems. The paper considers the possibilities of various electron paramagnetic resonance (EPR) techniques to study petroleum asphaltenes and their solubility fractions using a carbon-centered stable free radical (FR) as an intrinsic probe. The dilution of asphaltenes with deuterated toluene made it possible to refine the change in the structure at the initial stage of asphaltene disaggregation. From the measurements of samples of bitumen, a planar circumcoronene-like model of FR structure and FR-centered asphaltenes is proposed. The results show that EPR-based approaches can serve as sensitive numerical tools to follow asphaltenes’ structure and their disaggregation.

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Section: Resultsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High-Field (3.4 T) Electron Paramagnetic Resonance, 1H Electron-Nuclear Double Resonance, ESEEM, HYSCORE, and Relaxation Studies of Asphaltene Solubility Fractions of Bitumen for Structural Characterization of Intrinsic Carbon-Centered Radicals

et al. 2022

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“…In the other work [16], it is shown that the exposure of oil to a 50 Hz low-frequency field changes the fractional composition of oil. In our recent studies [40][41][42], we reported the results of experimental studies on the variation in the chemical composition of oil when exposed to a 50 Hz electromagnetic field and a 50 mT constant magnetic field combined with a thermal treatment. Below, we outlined the most significant results from those studies that demonstrate the magnetic fields breakdown the -C-C-bonds in heavy components of oil and transform the same into lighter components (Figures 4 and 5).…”

Section: Effect Of Magnetic Fields On Chemical Reactions Of Organic C...mentioning

confidence: 99%

Controversial Issues of Hydrocarbon Field Formation and the Role of Geomagnetic Fields

Ponomarev

Kadyrov

Vaganov

et al. 2022

International Journal of Geophysics

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This review paper presents controversial issues on the formation of hydrocarbon deposits. We look into the geological contradictions of the abiogenic and biogenic theories of petroleum origin, indicating the connection between hydrocarbon deposits and disjunctive dislocations, as well as present disputes about the geological period over which hydrocarbon deposits have been formed. We further overviewed the radical chain mechanism of hydrocarbon generation from organic matter as proposed by Prof. Nesterov. It is noted that the petroleum generation process in reservoir conditions occurs almost instantly in the presence of discrete geomagnetic fields and does not require a long geological time. This is explained by spin magnetic effects (spin catalysis, magnetic isotope properties). We briefly highlight the effect of magnetic fields on chemical reactions involving organic compounds and the use of magnetic fields to enhance oil recovery. We also present the leading causes of discrete magnetic fields in the sedimentary cover: Earth’s geomagnetic reversals, generation of ferromagnetic minerals in oil deposits, electromechanical effects of rock friction near faults, and intermixing of reservoir waters with different mineralization (spontaneous ion polarization). Based on the material reported, we conclude that the radical chain mechanism of petroleum generation processes explains some contradictions of the abiogenic and biogenic theories of petroleum origin. Elaborating this research area has excellent prospects for developing new criteria for hydrocarbon prospecting and devising innovative methods to enhance the oil recovery for shale oil production.

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“…In recent decades, electromagnetic heating, such as microwave heating, has gradually replaced some traditional heating methods due to its high efficiency, low cost, and environmental protection [1][2][3][4], including rubber vulcanization [5], oil recovery [6], petroleum processing [7], etc. In conventional heating methods, even if the surface temperature of materials increases, it is not easy to raise the central temperature.…”

Section: Introductionmentioning

confidence: 99%

Efficient Microwave Processing of Thin Films Based on Double-Ridged Waveguide

et al. 2023

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Microwave heating has a wide range of applications in the fields of industrial heating and drying. However, when microwave heating is applied to the thin film, it will be challenging due to its low loss and large heat dissipation area. In this paper, a double-ridged waveguide for thin-film heating is proposed. The double ridge structure is employed to enhance the electric field, thereby increasing the power-loss density in the thin film. Firstly, a double-ridged waveguide, in which the electric field strength can be about 2.5 times that of the conventional waveguide, was designed based on the transverse resonance method and the electromagnetic field simulation. Then, a multiphysics model was built to analyze the heating performance of the ridged waveguide, in which the electromagnetic field and heat transfer are coupled. The simulation results show that the heating performance of the proposed waveguide will be 35.0 times that of the conventional waveguide. An experiment was carried out to verify the proposed model, showing that the experimental results are in accordance with the simulation results. Finally, the influences of the thickness of the film, the permittivity, the distance between two ridges, and the working state on heating performance and heating uniformity were also discussed.

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Conventional and high-field pulsed EPR experimental studies on Bazhenov oil formation under the influence of 50 Hz electromagnetic field

Cited by 5 publications

References 32 publications

High-Field (3.4 T) Electron Paramagnetic Resonance, 1H Electron-Nuclear Double Resonance, ESEEM, HYSCORE, and Relaxation Studies of Asphaltene Solubility Fractions of Bitumen for Structural Characterization of Intrinsic Carbon-Centered Radicals

High-Field (3.4 T) Electron Paramagnetic Resonance, 1H Electron-Nuclear Double Resonance, ESEEM, HYSCORE, and Relaxation Studies of Asphaltene Solubility Fractions of Bitumen for Structural Characterization of Intrinsic Carbon-Centered Radicals

Controversial Issues of Hydrocarbon Field Formation and the Role of Geomagnetic Fields

Efficient Microwave Processing of Thin Films Based on Double-Ridged Waveguide

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