The viscosifying behavior of W/O emulsion and its underlying mechanisms: Considering the interfacial adsorption of heavy components

Cao, Changxiao; Gu, Shaohua; Song, Zhaojie; Xie, Zehui; Chang, Xuya; Shen, Pingping

doi:10.1016/j.colsurfa.2021.127794

Cited by 16 publications

(2 citation statements)

References 34 publications

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“…Natural emulsifying agents affect the stability of W/O emulsions in two ways. One way is to prevent the drainage of the interfacial film to maintain the emulsion stability 19,31,32 . Another way is to affect the strength of the interfacial film.…”

Section: Formation Of Heavy Oil-water Emulsionsmentioning

confidence: 99%

Demulsification Methods for Heavy Crude Oil Emulsions. A Review

Topilnytskyy,

Shyshchak,

Skorokhoda

et al. 2024

ChChT

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Demulsification (dehydration) is one of the most important problems in the oil industry. The peculiarity of heavy oil emulsions is their high stability since heavy crude contains a significant quantity of resins and asphaltenes. This paper provides an overview of the issue of heavy oil emulsion dehydration, emphasizing the importance of understanding their properties to develop appropriate demulsification methods. The use of environmentally friendly demulsifiers was an object of special attention. The analysis of ongoing research in this area would be useful for researches and engineers.

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Section: Formation Of Heavy Oil-water Emulsionsmentioning

confidence: 99%

Demulsification Methods for Heavy Crude Oil Emulsions. A Review

Topilnytskyy,

Shyshchak,

Skorokhoda

et al. 2024

ChChT

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“…Asphaltenes are surface active, both on solid surfaces and at liquid-liquid, especially in heavy oil-water interface, where they adsorb to stabilize heavy oil-water emulsions [126]. They self-assemble and entangle, forming discoidal nanoaggregates in solution and strong, stable films at oil-water interfaces [127][128][129][130][131].…”

Section: Interface Characteristics Of Asphaltene Interfacial Filmsmentioning

confidence: 99%

A Review of Oil–Solid Separation and Oil–Water Separation in Unconventional Heavy Oil Production Process

Xiao

Geng

et al. 2022

IJMS

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Unconventional heavy oil ores (UHO) have been considered an important part of petroleum resources and an alternative source of chemicals and energy supply. Due to the participation of water and extractants, oil–solid separation (OSS) and oil–water separation (OWS) processes are inevitable in the industrial separation processes of UHO. Therefore, this critical review systematically reviews the basic theories of OSS and OWS, including solid wettability, contact angle, oil–solid interactions, structural characteristics of natural surfactants and interface characteristics of interfacially active asphaltene film. With the basic theories in mind, the corresponding OSS and OWS mechanisms are discussed. Finally, the present challenges and future research considerations are touched on to provide insights and theoretical fundamentals for OSS and OWS. Additionally, this critical review might even be useful for the provision of a framework of research prospects to guide future research directions in laboratories and industries that focus on the OSS and OWS processes in this important heavy oil production field.

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