Results 21 to 30 of about 18,445 (315)

Numerical modeling of straight 3D exploration seismology problems with use of grid-characteristic method on unstructured tetrahedral meshes [PDF]

open access: yesКомпьютерные исследования и моделирование, 2015
The article contains results of 3D modeling of seismic responses from fractured geological formations with use of grid-characteristic method on unstructured tetrahedral meshes with use of high-performance computation systems. The method being used is the
I. B. Petrov   +4 more
doaj   +1 more source

The development of fracture mathematical models for numerical solution of exploration seismology problems with use of grid-characteristic method [PDF]

open access: yesКомпьютерные исследования и моделирование, 2016
The article contains the description of developed mathematical models of fractures which can be used for numerical solution of exploration seismology problems with use of grid-characteristic method on unstructured triangular and tetrahedral meshes.
Maksim Viktorovich Muratov   +2 more
doaj   +1 more source

Reactive Transport Model of Gypsum Karstification in Physically and Chemically Heterogeneous Fractured Media

open access: yesEnergies, 2022
Gypsum dissolution leads to the development of karstic features within much shorter timescales than in other sedimentary rocks, potentially leading to rapid deterioration of groundwater quality and increasing the risk of catastrophes caused by subsidence.
Jesús F. Águila   +4 more
doaj   +1 more source

Equivalent Permeability Tensor of Heterogeneous Media: Upscaling Methods and Criteria (Review and Analyses)

open access: yesGeosciences, 2022
When conducting numerical upscaling, either for a fractured or a porous medium, it is important to account for anisotropy because in general, the resulting upscaled conductivity is anisotropic.
Philippe Renard, Rachid Ababou
doaj   +1 more source

Scale dependency of fractional flow dimension in a fractured formation [PDF]

open access: yesHydrology and Earth System Sciences, 2011
The flow dimensions of fractured media were usually predefined before the determination of the hydraulic parameters from the analysis of field data in the past.
Y.-C. Chang   +3 more
doaj   +1 more source

Study on the upscaling transformation of hydraulic conductivity in fractured media

open access: yes地质科技通报, 2023
Objective It is very important to study the upscaling transformation of hydraulic conductivity in fracture media for accurately characterizing the seepage field characteristics.
Xiaofei Dong   +4 more
doaj   +1 more source

An Online Generalized Multiscale Finite Element Method for Unsaturated Filtration Problem in Fractured Media

open access: yesMathematics, 2021
In this paper, we present a multiscale model reduction technique for unsaturated filtration problem in fractured porous media using an Online Generalized Multiscale finite element method. The flow problem in unsaturated soils is described by the Richards
Denis Spiridonov   +3 more
doaj   +1 more source

Linearised Inversion of Vertically Fractured Media [PDF]

open access: yes61st EAGE Conference and Exhibition, 1999
In the recent years several authors (Haugen at al., 1996; Lynn at al., 1995; Zillmer at al., 1998) have studied the characterization of horizontal transverse isotropic (HTS) equivalent fractured media by means of AVO and AVA analysis.
M. Beretta   +2 more
openaire   +2 more sources

Simulation of counter-current imbibition in water-wet fractured reservoirs based on discrete-fracture model

open access: yesOpen Physics, 2017
Isolated fractures usually exist in fractured media systems, where the capillary pressure in the fracture is lower than that of the matrix, causing the discrepancy in oil recoveries between fractured and non-fractured porous media.
Wang Yueying   +5 more
doaj   +1 more source

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