Results 11 to 20 of about 2,389 (251)

Spontaneous imbibition characteristics of diatomite [PDF]

open access: yesJournal of Petroleum Science and Engineering, 2000
Abstract A systematic investigation of fluid flow characteristics within diatomite (a high porosity, low permeability, siliceous rock) is reported. Using an X-ray computerized tomography (CT) scanner, and a novel, CT-compatible imbibition cell, we study spontaneous cocurrent water imbibition into diatomite samples. Air–water and oil–water systems are
Akın, Serhat   +3 more
openaire   +3 more sources

Onset of Spontaneous Imbibition [PDF]

open access: yes, 2017
The spontaneous imbibition process in porous media is an important recovery mechanism and is governed by capillary forces that arise when two immiscible fluids are present in the pore space. This thesis presents new observations where the displacement process deviates from the widespread assumption of a uniformly shaped saturation front and the square ...
Føyen, Tore Lyngås
openaire   +3 more sources

Mechanisms of Spontaneous Imbibition and Wettability Reversal of Sandstone Cores by a Novel Imbibition Agent [PDF]

open access: yes, 2022
The basic performance of a novel high-efficiency spontaneous imbibition agent (SXJ-2) was investigated in this study. The mechanisms of spontaneous imbibition and wettability reversal of an oil-wet sandstone surface (OSS) by SXJ-2 were studied by ...
Song Wang   +19 more
core   +1 more source

Lattice Boltzmann Modeling of Spontaneous Imbibition in Variable-Diameter Capillaries [PDF]

open access: yes, 2022
Previous micro-scale studies of the effect of pore structure on spontaneous imbibition are mainly limited to invariable-diameter capillaries. However, in real oil and gas reservoir formations, the capillary diameters are changing and interconnected ...
Lei Li   +5 more
core   +1 more source

ANALYSIS OF SPONTANEOUS IMBIBITION IN FRACTAL TREE-LIKE NETWORK SYSTEM [PDF]

open access: yes, 2016
Spontaneous imbibition in porous media is common in nature, imbibition potential is very important for understanding the imbibition ability, or the ability to keep high imbibition rate for a long time.
Su S   +5 more
core   +1 more source

Spontaneous imbibition in asymmetric branch-like throat structures in unconventional reservoirs [PDF]

open access: yes, 2017
Unconventional reservoirs, especially shale plays, have abundant micro nano pores. Large volume water was injected into the reservoir during hydraulic fracturing.
Ge HK   +5 more
core   +1 more source

Characterization of pore structure, gas adsorption, and spontaneous imbibition in shale gas reservoirs [PDF]

open access: yes, 2017
The multiscale pore structure and its distribution as well as the occurrence state of shale gas and spontaneous imbibition in gas shale are studied experimentally.
黄先富   +2 more
core   +1 more source

Spontaneous Imbibition Experiment in Newspaper Sheets

open access: yesPhysical Review Letters, 2010
We study the behavior of an ink-paper interface in a spontaneous imbibition experiment as a function of time and paper orientation. To characterize the interface roughness the growth beta and Hurst H exponents (calculated using the root mean square interface width W) and the H{q} scaling exponent (calculated using the qth order height-height ...
A M, Miranda   +2 more
openaire   +3 more sources

The Onset of Spontaneous Imbibition: How Irregular Fronts Influence Imbibition Rate and Scaling Groups [PDF]

open access: yes, 2018
Spontaneous imbibition is a capillary dominated displacement process where a non-wetting fluid is displaced from a porous medium by the inflow of a more-wetting fluid.
T. L. Føyen   +2 more
core   +1 more source

Spontaneous Imbibition in Nanopores of Different Roughness and Wettability [PDF]

open access: yesLangmuir, 2010
The spontaneous imbibition of liquid in nanopores of different roughness is investigated using coarse grain molecular dynamics (MD) simulation. The numerical model is presented and the simplifying assumptions are discussed in detail. The molecular-kinetic theory introduced by Blake is used to describe the effect of dynamic contact angle on fluid ...
Stukan, MR   +3 more
openaire   +3 more sources

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