Effect of CT image size and resolution on the accuracy of rock property estimates

Y Bazaikin, B Gurevich, S Iglauer… - Journal of …, 2017 - Wiley Online Library
In order to study the effect of the micro‐CT scan resolution and size on the accuracy of
upscaled digital rock property estimation of core samples Bentheimer sandstone images …

Numerical modeling of mechanical wave propagation

G Seriani, SP Oliveira - La Rivista del Nuovo Cimento, 2020 - Springer
The numerical modeling of mechanical waves is currently a fundamental tool for the study
and investigation of their propagation in media with heterogeneous physical properties …

Numerical dispersion mitigation neural network for seismic modeling

K Gadylshin, D Vishnevsky, K Gadylshina, V Lisitsa - Geophysics, 2022 - library.seg.org
We have developed a novel approach for seismic modeling combining conventional finite
differences with deep neural networks. The method includes the following steps. First, a …

Combination of the discontinuous Galerkin method with finite differences for simulation of seismic wave propagation

V Lisitsa, V Tcheverda, C Botter - Journal of Computational Physics, 2016 - Elsevier
We present an algorithm for the numerical simulation of seismic wave propagation in models
with a complex near surface part and free surface topography. The approach is based on the …

Local time–space mesh refinement for simulation of elastic wave propagation in multi-scale media

V Kostin, V Lisitsa, G Reshetova… - Journal of computational …, 2015 - Elsevier
This paper presents an original approach to local time–space grid refinement for the
numerical simulation of wave propagation in models with localized clusters of micro …

Attenuation mechanisms in fractured fluid‐saturated porous rocks: A numerical modelling study

E Caspari, M Novikov, V Lisitsa, ND Barbosa… - Geophysical …, 2019 - earthdoc.org
Seismic attenuation mechanisms receive increasing attention for the characterization of
fractured formations because of their inherent sensitivity to the hydraulic and elastic …

Seismic modeling with radial-basis-function-generated finite differences

B Martin, B Fornberg, A St-Cyr - Geophysics, 2015 - library.seg.org
Seismic exploration is the primary tool for finding and mapping out hydrocarbon deposits.
We have considered the 2D forward modeling problem. The subsurface structures were …

Hausdorff-distance-based training dataset construction for numerical dispersion mitigation neural network

K Gadylshin, V Lisitsa, D Vishnevsky… - Computers & …, 2023 - Elsevier
We present a novel approach for constructing the training dataset for the Numerical
Dispersion Mitigation neural network (NDM-net). The NDM-net is a multi-step approach to …

GPU-based algorithm for evaluating the electrical resistivity of digital rocks

T Khachkova, V Lisitsa, G Reshetova… - Computers & Mathematics …, 2021 - Elsevier
We present an algorithm for numerical simulation of electric current in rock samples and
numerical upscaling of heterogeneous samples' electrical resistivity (conductivity). The …

[HTML][HTML] Dispersion analysis of discontinuous Galerkin method on triangular mesh for elastic wave equation

V Lisitsa - Applied Mathematical Modelling, 2016 - Elsevier
This paper presents a mid-frequency dispersion analysis of the triangle-based
discontinuous Galerkin method for numerical simulation of seismic wave propagation. The …