Results 11 to 20 of about 400,325 (291)

Infiltration through porous media [PDF]

open access: yesPhysical Review E, 2000
We study the kinetics of infiltration in which contaminant particles, which are suspended in a flowing carrier fluid, penetrate a porous medium. The progress of the ``invader'' particles is impeded by their trapping on active ``defender'' sites which are
Hwang, W., Redner, S.
core   +3 more sources

Direct Visualization of Nanoscale Salt Precipitation and Dissolution Dynamics during CO2 Injection

open access: yesEnergies, 2022
CO2 injection to enhance shale oil recovery provides a win-win solution to meet the global fuel shortage and realize ultimate carbon neutrality. When shale reservoirs contain high salinity water, CO2 injection can result in salt precipitation to block ...
Xinling Hu   +10 more
doaj   +1 more source

Effect of surface modification on single-walled carbon nanotube retention and transport in saturated and unsaturated porous media [PDF]

open access: yes, 2012
This work investigated the effect of different surface modification methods, including oxidization, surfactant coating, and humic acid coating, on single-walled carbon nanotube (SWNT) stability and their mobility in granular porous media under various ...
Gao, Bin   +4 more
core   +3 more sources

From Rayleigh-B\'enard convection to porous-media convection: how porosity affects heat transfer and flow structure [PDF]

open access: yes, 2020
We perform a numerical study of the heat transfer and flow structure of Rayleigh-B\'enard (RB) convection in (in most cases regular) porous media, which are comprised of circular, solid obstacles located on a square lattice.
Chong, Kai Leong   +8 more
core   +3 more sources

Research on Stress Sensitivity of Fractured Carbonate Reservoirs Based on CT Technology

open access: yesEnergies, 2017
Fracture aperture change under stress has long been considered as one of primary causes of stress sensitivity of fractured gas reservoirs. However, little is known about the evolution of the morphology of fracture apertures on flow property in loading ...
Yongfei Yang   +7 more
doaj   +1 more source

Reconstruction of 3D multi-mineral shale digital rock from a 2D image based on multi-point statistics

open access: yesFrontiers in Earth Science, 2023
Introduction: Shale oil and gas reservoirs contain a variety of inorganic and organic pores that differ significantly from conventional reservoirs, making traditional experiments ineffective.
Lei Liu   +13 more
doaj   +1 more source

TRANSFERS IN POROUS MEDIA [PDF]

open access: yesSpecial Topics & Reviews in Porous Media: An International Journal, 2014
Modelling heat transfer in porous media requires to take into account multiple-scale aspects inherent to porous media structures. Several methodologies have been developed to upscale the equations at a lower-scale and to obtain upper-scale models as it is outlined in a brief review based on a simple heat conduction example proposed in the first part of
openaire   +4 more sources

A Pore-Scale Investigation of Residual Oil Distributions and Enhanced Oil Recovery Methods

open access: yesEnergies, 2019
Water flooding is an economic method commonly used in secondary recovery, but a large quantity of crude oil is still trapped in reservoirs after water flooding.
Yaohao Guo   +7 more
doaj   +1 more source

Ripening of porous media

open access: yesPhysical Review E, 2004
We address the surface tension-driven dynamics of porous media in nearly saturated pore-space solutions. We linearize this dynamics in the reaction-limited regime near its fixed points -- surfaces of constant mean curvature (CMC surfaces). We prove that the only stable interface for this dynamics is the plane, and estimate the time scale for a CMC ...
Davidovitch, Benny   +2 more
openaire   +3 more sources

Drying of Porous Media [PDF]

open access: yesTransport in Porous Media, 2015
Drying of porous media is part of our daily experience, yet this common process is central to many environmental and engineering applications ranging from soil evaporation affecting hydrological water balance and climatic processes, to the drying of food and building materials, and driving plant life through transpiration.
Shokri, Nima   +3 more
openaire   +4 more sources

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