Effects of Aqueous Phase Composition on the Stability of Water-In-Oil Emulsions

被引：0

作者：

Loskutova, Yu. V. ^{[1
]}

Yudina, N. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Inst Petr Chem, Tomsk 634055, Russia

来源：

PETROLEUM CHEMISTRY | 2025年

关键词：

emulsions; reservoir water; salinity; pH; asphaltenes; ASPHALTENE SUBFRACTIONS; SALINITY; TEMPERATURE; AGGREGATION; DROPLETS; BEHAVIOR; PH;

D O I：

10.1134/S0965544125600365

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The paper investigates the effects of the salinity and pH of an aqueous phase, as well as the influence of asphaltene content in crude oil, on emulsification-specifically on the formation of an interfacial layer and the stability of emulsion. The oil-water interfacial tension, water droplet size, and emulsion stability were characterized using the bottle test method. The oil-distilled water interfacial tension in emulsions varies widely. Compared to distilled water, emulsions with high-salinity reservoir waters are distinguished by high stability and a lower interfacial tension. Asphaltenes that are concentrated in the interfacial layer of an emulsion with high-salinity reservoir water have a higher molecular weight than asphaltenes of crude oils and of emulsions with distilled water. Elemental analysis and IR spectroscopy show an increase in sulfur content in asphaltenes adsorbing at the oil-distilled water interface, and an increase in oxygen content in asphaltenes from emulsion with high-salinity-waters.

引用

页数：7

共 26 条

[1] Evolution of adsorbed layers of asphaltenes at oil-water interfaces: A novel experimental protocol [J].

Ashoorian, Sefatallah ;

Javadi, Aliyar ;

Hosseinpour, Negahdar ;

Husein, Maen .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2021, 594 :80-91

[2] Influence of pH and cationic surfactant on stability and interfacial properties of Algerian bitumen emulsion [J].

Benderrag, Abdelkader ;

Daaou, Mortada ;

Bounaceur, Boumedienne ;

Haddou, Boumedienne .

CHEMICAL PAPERS, 2016, 70 (09) :1196-1203

[3] Study of the stability and homogeneity of water in oil emulsions of heavy oil [J].

da Silva, Mayara ;

Sad, Cristina M. S. ;

Pereira, Laine B. ;

Corona, Rayane R. B. ;

Bassane, Joao F. P. ;

dos Santos, Francine D. ;

Neto, Dorval M. C. ;

Silva, Samantha R. C. ;

Castro, Eustaquio V. R. ;

Filgueiras, Paulo R. .

FUEL, 2018, 226 :278-285

[4] Water pH and surfactant addition effects on the stability of an Algerian crude oil emulsion [J].

Daaou, Mortada ;

Bendedouch, Dalila .

JOURNAL OF SAUDI CHEMICAL SOCIETY, 2012, 16 (03) :333-337

[5] Low Salinity Waterflooding in Carbonate Reservoirs: Review of Interfacial Mechanisms [J].

Derkani, Maryam H. ;

Fletcher, Ashleigh J. ;

Abdallah, Wael ;

Sauerer, Bastian ;

Anderson, James ;

Zhang, Zhenyu J. .

COLLOIDS AND INTERFACES, 2018, 2 (02)

[6] Effect of salinity, temperature, water content, and pH on the microwave demulsification of crude oil emulsions [J].

Fortuny, Montserrat ;

Oliveira, Cesar B. Z. ;

Melo, Rosana L. F. V. ;

Nele, Marcio ;

Coutinho, Raquel C. C. ;

Santos, Alexandre F. .

ENERGY & FUELS, 2007, 21 (03) :1358-1364

[7] Experimental investigation of stability of water in oil emulsions at reservoir conditions: Effect of ion type, ion concentration, and system pressure [J].

Kazemzadeh, Yousef ;

Ismail, Ismail ;

Rezvani, Hosein ;

Sharifi, Mohammad ;

Riazi, Masoud .

FUEL, 2019, 243 :15-27

[8] Effects of Asphaltene Concentration and Test Temperature on the Stability of Water-in-Model Waxy Crude Oil Emulsions [J].

Li, Yujiang ;

Li, Chuanxian ;

Zhao, Zhiqi ;

Cai, Wei ;

Xia, Xue ;

Yao, Bo ;

Sun, Guangyu ;

Yang, Fei .

ACS OMEGA, 2022, 7 (09) :8023-8035

[9] Dissipative Particle Dynamics-Based Simulation of the Effect of Asphaltene Structure on Oil-Water Interface Properties [J].

Liang, Chonghao ;

Liu, Xiaoyan ;

Jiang, Hui ;

Xu, Ying ;

Jia, Yongying .

ACS OMEGA, 2023, 8 (36) :33083-33097

[10] Polarity effects of asphaltene subfractions on the stability and interfacial properties of water-in-model oil emulsions [J].

Liu, Daiwei ;

Li, Chuanxian ;

Zhang, Xiaoping ;

Yang, Fei ;

Sun, Guangyu ;

Yao, Bo ;

Zhang, Hao .

FUEL, 2020, 269

← 1 2 3 →