Results 1 to 10 of about 12,595 (293)
Anomalous Roughening of Viscous Fluid Fronts in Spontaneous Imbibition [PDF]
Physical Review Letters, 2005 4 pages, 5 ...
Soriano i Fradera, Jordi +5 more
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Characterizing Dissipation in Fluid-Fluid Displacement Using Constant-Rate Spontaneous Imbibition [PDF]
Physical Review Letters, 2020 When one fluid displaces another in a confined environment, some energy is dissipated in the fluid bulk and the rest is dissipated near the contact line. Here we study the relative strengths of these two sources of dissipation with a novel experimental setup: constant-rate spontaneous imbibition experiments, achieved by introducing a viscous oil slug ...
B. K. Primkulov +4 more
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Capillary Imbibition of Binary Fluid Mixtures in Nanochannels [PDF]
Langmuir, 2020 Many-body Dissipative Particle Dynamics (MDPD) simulations of binary fluid mixtures imbibing cylindrical nanochannels reveal a strong segregation of fluids differing in their affinities to the pore walls. Surprisingly, the imbibition front furthest into the channel is highly enriched in the fluid with the lower affinity for the walls, i.e., the fluid ...
Thejas Hulikal Chakrapani +1 more
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Forced imbibition in stratified porous media: Fluid dynamics and breakthrough saturation [PDF]
Physical Review Fluids, 2021 Imbibition, the displacement of a nonwetting fluid by a wetting fluid, plays a central role in diverse energy, environmental, and industrial processes. While this process is typically studied in homogeneous porous media with uniform permeabilities, in many cases, the media have multiple parallel strata of different permeabilities.
Nancy B. Lu +2 more
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Validating mechanistic models of fluid displacement during imbibition
Advances in Water Resources, 2023 Pore-scale modelling is an important tool to improve our understanding of multiphase flow in porous media. Slow fluid invasion is commonly modelled using quasi-static pore network models (PNM). These models simulate the invasion in a network of simplified pores and throats by invading network elements in order of the quasi-static “invasion” capillary ...
Sharon Ellman +2 more
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Avalanche dynamics in fluid imbibition near the depinning transition [PDF]
Physical Review E, 2009 We study avalanche dynamics and local activity of forced-flow imbibition fronts in disordered media. We focus on the front dynamics as the mean velocity $\bar{v}$ of the interface is decreased and the pinning state is approached. Scaling arguments allow us to obtain the statistics of avalanche sizes and durations, which become power-law distributed due
Pradas, Marc +2 more
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Fluid imbibition in paper fibers: Precursor front
Physical Review E, 2008 We employ nuclear magnetic resonance imaging to study water penetration in cylindrical blocks of unsized paper prepared under different molding pressures. From the measured kinetics of the imbibition profiles, we determine the dependence of the effective transport diffusivity upon degree of saturation of the pores by the penetrating fluid.
Eduardo N. de Azevedo +4 more
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Imaging spontaneous imbibition in full Darcy‐scale samples at pore‐scale resolution by fast X‐ray tomography [PDF]
, 2019 Spontaneous imbibition is a process occurring in a porous medium which describes wetting phase replacing nonwetting phase spontaneously due to capillary forces.
Bartels, W. B. +9 more
core +2 more sources
Reactive Transport Modeling of Shale–Fluid Interactions after Imbibition of Fracturing Fluids
Energy & Fuels, 2020 Injection of hydraulic fracturing fluid (HFF) into shale formations for unconventional oil/gas production results in chemical reactions in the shale matrix.
Qingyun Li +4 more
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Imbibition and Oil Recovery Mechanism of Fracturing Fluids in Tight Sandstone Reservoirs [PDF]
ACS Omega, 2021 The fracturing fluid residing in a reservoir undergoes spontaneous imbibition. Here, to explore the mechanism of fracturing fluid imbibition and oil displacement, experiments on the spontaneous imbibition of fracturing fluid under different influencing factors were conducted on a core sample from the Ordos Basin of the Chang 8 formation.
Hui Gao +6 more
openaire +3 more sources