Digital core reconstruction research: challenges and prospects

Ponomarev, Andrey; Kadyrov, Marsel; Tugushev, Oscar A.; Drugov, Denis; Vaganov, Yuri V.; Leontiev, D. S.; Zavatsky, Mikhail D.

doi:10.1080/24749508.2022.2086201

Cited by 2 publications

(1 citation statement)

References 45 publications

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“…The anatomical orientation of wood structures significantly influences the wood impregnation process (Frias et al, 2021;Hass et al, 2012;Tondi et al, 2013;Ponomarev et al, 2021bPonomarev et al, , 2022. The obtained images of the distribution of the impregnating composition (Figure 4b and d) show that its movement occurs along the path of least resistance in the end direction along large anatomical structures, such as vessels and fibers.…”

Section: Study Of the Porosity And Distribution Of The Impregnating C...mentioning

confidence: 95%

Improving the Performance Properties of Impregnated Wood with its Subsequent Utilization into a Biochar Sorbent

Zhuzhukin,

Tomina,

Ponomarev

et al. 2023

Floresta Ambient.

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Wood is a common natural polymeric material with hydrophilicity and low biostability with a limited service life. The article considers the issue of using a multicomponent composition (used motor oil, rosin, paraffin) for impregnating birch wood and giving it increased water resistance, bio-and dimensional stability. The possibility of recycling the used impregnated wood to obtain a biochar adsorbent was shown. The impregnating composition was characterized by the FTIR method to assess the possibility of interaction between the functional groups of the impregnating composition and wood. Moisture and water absorption decreased by more than 4 and 6 times. Volumetric swelling decreased by 57% relative to untreated wood, the effectiveness against swelling after 30 days was 46%. The high efficiency of the impregnating composition against the wood biodegradation has been established. The method of micro-X-ray tomography determined a high degree of filling of the anatomical structures of wood.

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Section: Study Of the Porosity And Distribution Of The Impregnating C...mentioning

confidence: 95%

Improving the Performance Properties of Impregnated Wood with its Subsequent Utilization into a Biochar Sorbent

Zhuzhukin,

Tomina,

Ponomarev

et al. 2023

Floresta Ambient.

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Application of Toroidal Coils to Obtain Electrical Resistivity of Core Samples: Mathematical Modeling

Epov,

Mamyashev,

Mikhaylov

et al. 2024

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We consider the capability of evaluating the specific electrical resistivity of a cylindrical core by means of a transmitter-receiver system with toroidal coils placed around it. An algorithm for two-dimensional finite-difference modeling of electrical and magnetic signals from an external circular magnetic harmonic current equivalent to a toroidal coil has been developed and verified. We perform twodimensional numerical modeling of the real (in-phase) and imaginary (quadrature) part of the vertical component of the electric field and the tangential component of the magnetic field for a practically-significant range of core resistivities, the sample being located within an insulating or highly conductive tube with toroidal coils. Following the results of numerical simulation, the optimal length of the measuring system is selected, as well as the operating frequency and type of measured signals. The transformation of the latter into the apparent resistivity values of vertically inhomogeneous samples is proposed. Moreover, criteria have been established for the correspondence of the measured signals in thinlayered and equivalent electrically macroanisotropic samples when changing the resistivity contrast and thickness of the interlayers.

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Digital core reconstruction research: challenges and prospects

Cited by 2 publications

References 45 publications

Improving the Performance Properties of Impregnated Wood with its Subsequent Utilization into a Biochar Sorbent

Improving the Performance Properties of Impregnated Wood with its Subsequent Utilization into a Biochar Sorbent

Application of Toroidal Coils to Obtain Electrical Resistivity of Core Samples: Mathematical Modeling

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