Results 11 to 20 of about 3,289 (260)

An X–FEM technique for numerical simulation of variable-density flow in fractured porous media [PDF]

open access: yesMethodsX, 2023
Solute transport is one of the major topics in geological studies. Fracture is a significant characteristic of natural porous media, where the solute can transport due to its higher density with respect to the density of fluid.
A.R. Khoei   +3 more
doaj   +2 more sources

Numerical treatment of temporal-fractional porous medium model occurring in fractured media

open access: yesJournal of Ocean Engineering and Science, 2023
This paper proposes a temporal-fractional porous medium model (T-FPMM) for describing the co-current and counter-current imbibition, which arises in a water-wet fractured porous media. The correlation between the co-current and counter-current imbibition
R. Meher   +3 more
doaj   +3 more sources

Unstable Density-Driven Flow in Fractured Porous Media: The Fractured Elder Problem

open access: yesFluids, 2019
The Elder problem is one of the well-known examples of an unstable density-driven flow (DDF) and solute transport in porous media. The goal of this research is to investigate the influence of fracture networks on this benchmark problem due to the great ...
Paiman Shafabakhsh   +3 more
doaj   +3 more sources

Rigorous Upscaling of Unsaturated Flow in Fractured Porous Media

open access: yesSIAM Journal on Mathematical Analysis, 2020
This paper studies a mathematical model for flow in an unsaturated two-dimensional porous medium consisting of two porous matrix blocks separated by a thin, porous fracture. The flow is governed by the Richards equation in both blocks, as well as in the fracture (subdomains).
Sorin Pop, Florin Radu, Florian List
exaly   +3 more sources

Review of permeability evolution model for fractured porous media

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2015
The ability to capture permeability of fractured porous media plays a significant role in several engineering applications, including reservoir, mining, petroleum and geotechnical engineering.
Jianjun Ma
doaj   +3 more sources

Investigation of In Situ Gelation Behavior and Enhanced Oil Recovery Ability of Polymer Gel Used for Controlling CO2 Channeling in Tight Fractured Reservoir [PDF]

open access: yesGels
Polymer gels are one of the most common plugging agents used for controlling CO2 channeling and improving sweep efficiency and oil recovery in tight fractured reservoirs. However, the in situ gelation behavior and enhanced oil recovery ability of polymer
Hong He   +5 more
doaj   +2 more sources

An improved wave equation of fractured-porous media for predicting reservoir permeability

open access: yesFrontiers in Earth Science, 2023
The wave characteristics of fractured-porous media can be utilized for permeability identification; however, further research is necessary to enhance the accuracy of this identification. A novel wave equation for fractured-porous media is formulated, and
Wanjin Zhao   +3 more
doaj   +1 more source

Quantitative characterization of irregular microfracture network and its effect on the permeability of porous media

open access: yesPetroleum Exploration and Development, 2021
Based on the comprehensive understanding on microfractures and matrix pores in reservoir rocks, numerical algorithms are used to construct fractured porous media and fracture-pore media models.
Tao LI   +6 more
doaj   +1 more source

Delayed Fracture in Porous Media [PDF]

open access: yesPhysical Review Letters, 2005
The fracture of porous media subjected to a constant load is studied. Contrary to homogeneous solids in which fracture usually happens instantaneously at a well-defined breaking strength, the fracture of a porous medium can occur with a delay, allowing us to quantify the average lifetime of the unbroken material.
Shahidzadeh-Bonn, Noushine   +4 more
openaire   +4 more sources

Reactive Flow in Fractured Porous Media [PDF]

open access: yes, 2020
In this work we present a model reduction procedure to derive a hybrid-dimensional framework for the mathematical modeling of reactive transport in fractured porous media. Fractures are essential pathways in the underground which allow fast circulation of the fluids present in the rock matrix, often characterized by low permeability.
A. Fumagalli, A. Scotti
openaire   +2 more sources

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