Results 21 to 30 of about 2,609 (289)

Mineral composition and pore structure on spontaneous imbibition in tight sandstone reservoirs [PDF]

Scientific Reports
The 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 Reports
Understanding 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, Chaolin Wang, Yu Zhao, Lin Ning, Mingxuan Shen   +4 more
doaj   +2 more sources

Simulation of pore-scale microscopic spontaneous imbibition of shale based on level-set method

Youqi dizhi yu caishoulu
The core pore structure of the target shale oil block was finely characterized using scanning electron microscopy， and a microscopic numerical model of the pore-scale core was constructed to elucidate the intrinsic mechanisms and the main controlling ...
HAN Xiao, SONG Zhaojie, LI Peiyu, DENG Sen, SONG Yilei, ZHANG Yunfei, CAO Changxiao, YANG Zhicheng, WU Jiapeng   +8 more
doaj   +2 more sources

Microscopic Effect of Mixed Wetting Capillary Characteristics on Spontaneous Imbibition Oil Recovery in Tight Reservoirs

Energies
The understanding of the mechanisms that govern water spontaneous imbibition in mixed wetting capillary channels plays a significant role in operating the oil extraction and energy replenishment for the tight oil reservoirs.
Yu Pu, Erlong Yang, Di Wang
doaj   +2 more sources

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, Chalaturnyk R, Blunt MJ, Hodder K, Geiger S.   +4 more
europepmc   +6 more sources

Spontaneous imbibition in low permeability carbonates

Energy Sources, 2005
Spontaneous imbibition is important in oil recovery from fractured and low permeability tight gas reservoirs. Gas-water spontaneous imbibition experiments were conducted using low permeability heterogeneous limestone core plugs.
Akin, S, Karaaslan, U, Hatiboglu, CU, Akın, Serhat   +3 more
core   +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, Bo Xiao, Lijun You, Yang Zhou, Yili Kang   +4 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., Majaniemi, S., Rost, M., Alava, MJ, Elder, KR, Ala-Nissilä, Tapio   +5 more
openaire   +3 more sources

Control Mechanism and Parameter Simulation of Oil-Water Properties on Spontaneous Imbibition Efficiency of Tight Sandstone Reservoir

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, Litao Ma, Dengke Liu, Jing Tao, Xueqing Liu, Rongjun Zhang   +5 more
doaj   +1 more source

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., Mugele, F., Herminghaus, S.   +2 more
openaire   +4 more sources