Results 41 to 50 of about 2,609 (289)

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

, 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, Baofeng Hou, Dongliang Wen (11938234), Shenling Gao (11938237), Xiwu Yang, Fumin Zhang, Haiming Fan (2201905), Xiling Zhang (748544), Haiming Fan, Hongxin He (6712802), Yonglin Tian, Dongliang Wen, Shenling Gao, Hongxin He, Yonglin Tian (11938240), Baofeng Hou (11938231), Song Wang (144220), Xiling Zhang, Fumin Zhang (1931026), Xiwu Yang (11938243)   +19 more
core   +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

Spontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition direction

Journal of Petroleum Exploration and Production Technology, 2020
Understanding spontaneous imbibition helps to determine the fracturing fluid volume and optimize the flowback design. At present, many studies have mainly focused on shale, but few on igneous rocks.
Changlin Zhou, Li Li, Rong Zeng, Weihua Chen, Yuxuan Liu   +4 more
doaj   +1 more source

Spontaneous Imbibition Experiment in Newspaper Sheets

Physical 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, I L, Menezes-Sobrinho, M S, Couto   +2 more
openaire   +3 more sources

Effect of viscosity on oil recovery by spontaneous imbibition from partially water-covered matrix blocks

Energy Exploration & Exploitation, 2021
Spontaneous imbibition is an important mechanism of oil recovery from fractured reservoirs and unconventional reservoirs. Oil is produced by combining co- and counter-current imbibition when the matrix blocks was partially covered by water. In this paper,
Qi Zhang, Xinyue Wu, Yingfu He, Qingbang Meng   +3 more
doaj   +1 more source

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

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

Langmuir, 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, Ligneul, P, Crawshaw, JP, Boek, ES   +3 more
openaire   +3 more sources

A general approach to spontaneous imbibition [PDF]

Eos, Transactions American Geophysical Union, 2012
Spontaneous imbibition occurs in a porous medium when, driven by capillary forces, a wetting fluid such as water displaces a nonwetting fluid like oil or air. This is a common phenomenon, relevant to many processes such as groundwater contamination, steam migration in geothermal systems, carbon dioxide sequestration, and oil recovery.
openaire   +1 more source

Characteristic Forced and Spontaneous Imbibition Behavior in Strongly Water-Wet Sandstones Based on Experiments and Simulation

Energies, 2022
 Forced and spontaneous imbibition of water is performed to displace oil from strongly water-wet Gray Berea (~130 mD) and Bentheimer (~1900 mD) sandstone core plugs.
Pål Østebø Andersen, Liva Salomonsen, Dagfinn Søndenaa Sleveland   +2 more
doaj   +1 more source

Water imbibition and water sealing in water-driven gas reservoirs development

Energy Exploration & Exploitation, 2023
To improve the poor understanding of the mechanism of spontaneous water imbibition in water invasion in gas reservoirs and overcome the difficulty in quantifying imbibed water and its impact on reservoir development, a study is carried out based on ...
Xuan Xu, Jiangtao Li, Yi Xu, Junfeng Liu, Yong Hu, Chunyan Jiao, Changmin Guo   +6 more
doaj   +1 more source