Results 11 to 20 of about 139,632 (315)
TRANSFERS IN POROUS MEDIA [PDF]
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
The spread of emitted potentially virus‐laden aerosol particles is known to be highly dependent on whether a mask is worn by an infected person and on the emission scenario, i.e., whether the person is coughing, speaking, or breathing.
André Baumann +2 more
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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
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Research on Stress Sensitivity of Fractured Carbonate Reservoirs Based on CT Technology
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
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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
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A Pore-Scale Investigation of Residual Oil Distributions and Enhanced Oil Recovery Methods
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
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Direct Visualization of Nanoscale Salt Precipitation and Dissolution Dynamics during CO2 Injection
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
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Generalized Lagrangian Coordinates for Transport and Two-Phase Flows in Heterogeneous Anisotropic Porous Media [PDF]
We show how Lagrangian coordinates provide an effective representation of how difficult non-linear, hyperbolic transport problems in porous media can be dealt with. Recalling Lagrangian description first, we then derive some basic but remarkable properties
Plouraboué, Franck +2 more
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A two-pressure model for slightly compressible single phase flow in bi-structured porous media [PDF]
Problems involving flow in porous media are ubiquitous in many natural and engineered systems. Mathematical modeling of such systems often relies on homogenization of pore-scale equations and macroscale continuum descriptions.
Davit, Yohan +5 more
core +1 more source
The Influence of Micro-Fractures on the Flow in Tight Oil Reservoirs Based on Pore-Network Models
In this paper, the influence of micro-fractures on the flow of tight reservoirs is studied on the microscopic scale. Three-dimensional digital cores of fractured tight sandstone with varying fracture apertures, lengths, and dip angles are constructed ...
Hai Sun +8 more
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