Results 1 to 10 of about 2,389 (251)

Spontaneous Imbibition and Evaporation in Rocks at the Nanometer Scale. [PDF]

Energy Fuels, 2023
Understanding multiphase fluid displacement dynamics in porous media is of great importance in efficiently designing hydrogen storage projects in porous reservoirs. During gas injection and extraction, cyclic evaporation and spontaneous imbibition processes have an impact on storage efficiency. In both imbibition and evaporation, capillary films on the
Wensink G, Schröer L, Dell HP, Cnudde V, Rücker M.   +4 more
europepmc   +13 more sources

The Spontaneous Imbibition of Micro/Nano Structures in Tight Matrix and the Influence on Imbibition Potential. [PDF]

Micromachines (Basel), 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. This process is called spontaneous imbibition.
Li C, Xian C, Wang J, Geng D, Shen Y.
europepmc   +7 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

A Comprehensive Methodology for Investigating Cocurrent Spontaneous Imbibition in Coal. [PDF]

ACS Omega
Visualizing and quantifying fluid distribution during spontaneous imbibition at the nanomicro scale is vital for understanding microfluid flow and dynamic wettability in coalbed methane (CBM) reservoirs, which could serve as a fundamental basis for optimizing the parameters of the hydraulic fracturing process. In this study, fluid distribution and flow
Lu Y, Liu D, Cai Y, Cui M, Liu Y, Zhou Y, Yin W, Peng Y.   +7 more
europepmc   +5 more sources

Mechanism and application of gas phase trapping by spontaneous imbibition. [PDF]

Sci Rep
For fractured gas reservoirs with strong water drive, gas phase trapping affects the gas recovery significantly. The recovery may be less than 50% for some reservoirs while it is only 12% for Beaver River gas field. The gas phase trapping mechanism has been revealed by the results of depletion experimental test. The residual pressure of the trapped gas
Wan Y, He C, Li X, Jiao C, Xu X, Hu Y, Lin Y.   +6 more
europepmc   +4 more sources

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

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

Measurement and Modeling of Spontaneous Capillary Imbibition in Coal [PDF]

ACS Omega, 2020
Coal is a typical dual-porosity medium. The implementation process of water invasion technology in coal is actually a process of spontaneous imbibition of external water. To obtain a model of spontaneous capillary imbibition in coal, the spontaneous imbibition of water in coal samples with different production loads is conducted experimentally.
Jiwei Yue, Zhaofeng Wang, Yongxin Sun, Jinsheng Chen, Fenghua An, Hongqing Yu, Xuechen Li   +6 more
openaire   +3 more sources

Spontaneous Imbibition in Small Cores [PDF]

Asia Pacific Oil and Gas Conference and Exhibition, 2007
Abstract This paper presents experimental data for co-current spontaneous imbibition into cores having bulk volumes from 0.1 to 12 cm3. Simple experiments of brine imbibing into air-filled cores were carried out. Homogeneous sandstone cores (Berea and Bentheim) and a carbonate core (Mt. Gambier) were used in the experiments.
O. A. Olafuyi, Y. Cinar, M. A. Knackstedt, W. V. Pinczewski   +3 more
openaire   +1 more source

Study on mechanism of spontaneous imbibition and pressurized imbibition in shale oil reservoirs [PDF]

Journal of Petroleum Exploration and Production Technology, 2020
AbstractImbibition is one of the important methods of oil recovery in shale oil reservoirs. At present, more in-depth studies have been carried out on the fracture system and matrix system, and there are few studies on the effect of energy enhancement on imbibition in shale oil reservoirs.
Lanlan Yao, Zhengming Yang, Haibo Li, Bo Cai, Chunming He, Debin Xia   +5 more
openaire   +1 more source