Competitive adsorption of surfactants and hydrophilic silica particles at the oil–water interface: Interfacial tension and contact angle studies

2012 ◽  
Vol 377 (1) ◽  
pp. 396-405 ◽  
Author(s):  
R. Pichot ◽  
F. Spyropoulos ◽  
I.T. Norton
Keyword(s):  
Contact Angle ◽  
Interfacial Tension ◽  
Competitive Adsorption ◽  
Silica Particles ◽  
Water Interface ◽  
Oil Water

scholarly journals Mechanism of active silica nanofluids based on interface-regulated effect during spontaneous imbibition

2021 ◽  
Author(s):  
Xu-Guang Song ◽  
Ming-Wei Zhao ◽  
Cai-Li Dai ◽  
Xin-Ke Wang ◽  
Wen-Jiao Lv
Keyword(s):  
Contact Angle ◽  
Interfacial Tension ◽  
Oil Recovery ◽  
Dynamic Contact Angle ◽  
Liquid Interface ◽  
Spontaneous Imbibition ◽  
Wettability Alteration ◽  
Low Permeability ◽  
Oil Water ◽  
Solid Liquid

AbstractThe ultra-low permeability reservoir is regarded as an important energy source for oil and gas resource development and is attracting more and more attention. In this work, the active silica nanofluids were prepared by modified active silica nanoparticles and surfactant BSSB-12. The dispersion stability tests showed that the hydraulic radius of nanofluids was 58.59 nm and the zeta potential was − 48.39 mV. The active nanofluids can simultaneously regulate liquid–liquid interface and solid–liquid interface. The nanofluids can reduce the oil/water interfacial tension (IFT) from 23.5 to 6.7 mN/m, and the oil/water/solid contact angle was altered from 42° to 145°. The spontaneous imbibition tests showed that the oil recovery of 0.1 wt% active nanofluids was 20.5% and 8.5% higher than that of 3 wt% NaCl solution and 0.1 wt% BSSB-12 solution. Finally, the effects of nanofluids on dynamic contact angle, dynamic interfacial tension and moduli were studied from the adsorption behavior of nanofluids at solid–liquid and liquid–liquid interface. The oil detaching and transporting are completed by synergistic effect of wettability alteration and interfacial tension reduction. The findings of this study can help in better understanding of active nanofluids for EOR in ultra-low permeability reservoirs.

Performance of alkali-free natural petroleum sulfonates: Ultra-low interfacial tension on oil/water interface

2015 ◽  
Vol 93 (8) ◽  
pp. 1410-1415 ◽  
Author(s):  
Zhan Weng ◽  
Peng-Yuan Zhang ◽  
Guang-Wen Chu ◽  
Wei Wang ◽  
Jimmy Yun ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Water Interface ◽  
Low Interfacial Tension ◽  
Oil Water

scholarly journals Anomalous system-size dependence of electrolytic cells with an electrified oil–water interface

2015 ◽  
Vol 17 (38) ◽  
pp. 25100-25108 ◽  
Author(s):  
Marise Westbroek ◽  
Niels Boon ◽  
René van Roij
Keyword(s):  
Interfacial Tension ◽  
Size Dependence ◽  
Storage Capacity ◽  
System Size ◽  
Double Layers ◽  
Water Interface ◽  
Dielectric Interface ◽  
Electrolytic Cells ◽  
Oil Water

Manipulation of the charge of the dielectric interface between two bulk liquids not only enables the adjustment of the interfacial tension, but also controls the storage capacity of ions in the ionic double layers adjacent to each side of the interface.

Ellipsometric Study of Monodisperse Silica Particles at an Oil−Water Interface

Langmuir ◽  
2003 ◽  
Vol 19 (21) ◽  
pp. 8888-8893 ◽  
Author(s):  
Bernard P. Binks ◽  
John H. Clint ◽  
Amro K. F. Dyab ◽  
Paul D. I. Fletcher ◽  
Mark Kirkland ◽  
...  
Keyword(s):  
Silica Particles ◽  
Water Interface ◽  
Monodisperse Silica ◽  
Ellipsometric Study ◽  
Oil Water

Competitive adsorption of β-lactoglobulin + tween 20 at the oil-water interface

1991 ◽  
Vol 56 ◽  
pp. 293-300 ◽  
Author(s):  
Jean-Lue Courthaudon ◽  
Eric Dickinson ◽  
Yasuki Matsumura ◽  
David C. Clark
Keyword(s):  
Competitive Adsorption ◽  
Tween 20 ◽  
Water Interface ◽  
Oil Water ◽  
Β Lactoglobulin

Advanced emulsions via noncovalent interaction-mediated interfacial self-assembly

2018 ◽  
Vol 54 (25) ◽  
pp. 3174-3177 ◽  
Author(s):  
Songling Han ◽  
Huijie An ◽  
Hui Tao ◽  
Lanlan Li ◽  
Yuantong Qi ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Interfacial Tension ◽  
Self Assembly ◽  
Noncovalent Interaction ◽  
Water Interface ◽  
Oil Water

The traditional emulsification theory is enriched by a self-assembly approach, in which hydrophilic copolymers with one block exhibiting electrostatic or hydrogen-bonding forces with the oil phase self-assemble at the oil–water interface, thereby reducing interfacial tension and forming emulsions.

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