Digital Core technology development in Rosneft Oil Company

Lazeev, A.N.; Timashev, E.O.; Vakhrusheva, Inna A.; Serkin, M. F.; Gilmanov, Ya. I.

doi:10.24887/0028-2448-2018-11-18-22

Cited by 5 publications

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Application of core X-ray microtomography in oilfield geology

et al. 2021

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The article presents studies devoted to the practical application of computer X-ray microtomography (micro-CT) in oilfield geology. In particular, the authors give results of using the method for sample defectoscopy before petrophysical studies in order to improve the quality of analyzes. The paper includes an example of assessing the depth of core plugging with drilling fluid; assessing the mineral composition by micro-CT; experimental core studies when modeling the thermal effect on the oil source rocks of the Bazhenov formation. The authors also examine the current state of research in the field of digital petrophysics or digital core. The study is aimed at introducing the micro-CT method into the oilfield process.

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Application of core X-ray microtomography in oilfield geology

et al. 2021

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Digital Core Analysis – Innovative Approach for EOR Agent Screening at Pore-Scale for Achimov Rocks (Russian)

Yakimchuk

Evseev

Korobkov

et al. 2020

SPE Russian Petroleum Technology Conference

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The effect of the digital core image resolution on permeability

Shirshov¹,

Степанов²

2019

TSU Herald. Phys Math Model. Oil, Gas, Energy

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Digital core analysis using three-dimensional tomographic images of the internal structure of porous media has received significant development in recent years. Three-dimensional images of the core obtained with the help of x-ray computer tomography can be used to calculate the filtration properties of rocks. However, the question of the influence of the resolution quality of the three-dimensional core image on the simulation results still remains unanswered. This paper studies the influence of the resolution of the three-dimensional image of the core on the calculated absolute permeability in the case of a model porous medium consisting of axisymmetric conical constrictions of different sizes. Based on the initial representation of the model porous medium, several models with different discretization steps were generated, which correspond to images taken with different resolution. The results show that the resolution (the degree of discretization) significantly affects the calculated absolute permeability of the porous medium. The calculated permeability decreases with increasing sampling step. This is because the small channels are not visible at lower resolutions. Elimination of these channels leads to loss of connectivity of the model.

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Digital Core technology development in Rosneft Oil Company

Cited by 5 publications

References 0 publications

Application of core X-ray microtomography in oilfield geology

Application of core X-ray microtomography in oilfield geology

Digital Core Analysis – Innovative Approach for EOR Agent Screening at Pore-Scale for Achimov Rocks (Russian)

The effect of the digital core image resolution on permeability

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Digital Core technology development in Rosneft Oil Company

Cited by 5 publications

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Application of core X-ray microtomography in oilfield geology

Application of core X-ray microtomography in oilfield geology

Digital Core Analysis &ndash; Innovative Approach for EOR Agent Screening at Pore-Scale for Achimov Rocks (Russian)

The effect of the digital core image resolution on permeability

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Digital Core Analysis – Innovative Approach for EOR Agent Screening at Pore-Scale for Achimov Rocks (Russian)