Results 1 to 10 of about 1,402 (263)
Poromechanical controls on spontaneous imbibition in earth materials. [PDF]
Sci Rep, 2021 AbstractOver the last century, the state of stress in the earth’s upper crust has undergone rapid changes because of human activities associated with fluid withdrawal and injection in subsurface formations. The stress dependency of multiphase flow mechanisms in earth materials is a substantial challenge to understand, quantify, and model for many ...
Haghi AH +4 more
europepmc +7 more sources
The Spontaneous Imbibition of Micro/Nano Structures in Tight Matrix and the Influence on Imbibition Potential [PDF]
Micromachines, 2020 Tight matrix has relatively low permeability and porosity, with abundant micro/nano pores. The capillary force in these pores are relatively strong, making the wetting liquid easier to be imbibed in the matrix.
Caoxiong Li +4 more
doaj +2 more sources
Mineral composition and pore structure on spontaneous imbibition in tight sandstone reservoirs [PDF]
Scientific ReportsThe pore structure of tight oil reservoirs is extremely complex, with a wide range of pore sizes, diverse pore types, and well-developed nanopores and throats.
Chen Yang, Erlong Yang
doaj +2 more sources
Experimental study of spontaneous imbibition from coal based on nuclear magnetic resonance relaxation spectroscopy [PDF]
Scientific ReportsUnderstanding the spontaneous water imbibition mechanism in coal of varying ranks has substantial implications for hydraulic operations and the safe, efficient extraction of coalbed methane.
Xiangzhong Luo +4 more
doaj +2 more sources
Experimental study of water imbibition characteristics of the lacustrine shale in Sichuan Basin
Petroleum, 2023 Through the stimulation method of large-scale hydraulic fracturing, the spontaneous imbibition capacity of the water phase in the shale reservoir has great influence on the effect of stimulation. Generally, the lacustrine shale has the characteristics of
Changgui Jia +4 more
doaj +1 more source
Lattice Boltzmann Modeling of Spontaneous Imbibition in Variable-Diameter Capillaries
Energies, 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 ...
Rundong Gong +5 more
doaj +1 more source
Interface pinning in spontaneous imbibition [PDF]
Physical Review E, 2001 Evaporation and gravity induced pinning in spontaneous imbibition are examined within a phase field formalism. Evaporation is introduced via a nonconserving term and gravity through a convective term that constrains the influx of liquid. Their effects are described by dimensionless coupling constants epsilon and g, respectively.
Dube, M. +5 more
openaire +3 more sources
Nonlocal Dynamics of Spontaneous Imbibition Fronts [PDF]
Physical Review Letters, 2002 We have studied spontaneous imbibition fronts generated by capillary rise between two roughened glass plates, the separation d of which varied between 10 and 50 microm. Perfect agreement with Washburn's law was obtained. We have determined the roughness exponent chi of the fronts, and found chi=0.81+/-0.01 for small length scales.
Geromichalos, D. +2 more
openaire +4 more sources
Frontiers in Physics, 2022 Spontaneous imbibition is an effective method of tight sandstone reservoirs development. However, their underlying mechanisms are still unclear due to the representative issue caused by strong heterogeneity and complex oil-brine properties.
Dazhong Ren +5 more
doaj +1 more source
Geofluids, 2022 Spontaneous imbibition has been considered as a significant method to enhanced oil recovery (EOR) in unconventional reservoirs. The main impediment to comprehending the variation characteristics of spontaneous imbibition at different pore scales was the ...
Ming Yue +5 more
doaj +1 more source