Oil-in-water and water-in-oil emulsions formation and demulsification

AM Sousa, MJ Pereira, HA Matos - Journal of Petroleum Science and …, 2022 - Elsevier
In the petroleum industry, oil and water emulsions are frequent, not only in oilfield operations
but also during the transportation and refining processes. Once depicting emulsion …

Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry

R Zolfaghari, A Fakhru'l-Razi, LC Abdullah… - Separation and …, 2016 - Elsevier
The difficulties associated with transportation and refining of crude oil emulsions and
produced water discharge limitations are among the conspicuous clues that have led the …

[HTML][HTML] Overview on petroleum emulsions, formation, influence and demulsification treatment techniques

MM Abdulredha, HS Aslina, CA Luqman - Arabian Journal of Chemistry, 2020 - Elsevier
The most challenging aspect in petroleum industry is high produced water accompanying
crude oil extraction. In modern days, environmental attention has become very significant …

A critical review of development and demulsification mechanisms of crude oil emulsion in the petroleum industry

SA Raya, I Mohd Saaid, A Abbas Ahmed… - Journal of Petroleum …, 2020 - Springer
The need for efficient demulsification process to treat emulsions in the petroleum industry is
well acknowledged. For decades, numerous researches have been conducted to examine …

Recent advances in petroleum microbiology

JD Van Hamme, A Singh, OP Ward - Microbiology and molecular …, 2003 - journals.asm.org
Recent advances in molecular biology have extended our understanding of the metabolic
processes related to microbial transformation of petroleum hydrocarbons. The physiological …

Surfactants in microbiology and biotechnology: Part 2. Application aspects

A Singh, JD Van Hamme, OP Ward - Biotechnology advances, 2007 - Elsevier
Surfactants are amphiphilic compounds which can reduce surface and interfacial tensions
by accumulating at the interface of immiscible fluids and increase the solubility, mobility …

Electrostatic enhancement of coalescence of water droplets in oil: a review of the current understanding

JS Eow, M Ghadiri, AO Sharif, TJ Williams - Chemical engineering journal, 2001 - Elsevier
This paper reviews the current understanding of electrocoalescence of water droplets in oil,
highlighting particularly the mechanisms proposed for droplet–droplet and droplet–interface …

Polymeric surfactants and emerging alternatives used in the demulsification of produced water: A review

F Shehzad, IA Hussein, MS Kamal, W Ahmad… - Polymer …, 2018 - Taylor & Francis
Stable emulsions are frequently encountered in oil production and cause a series of
environmental and operational issues. Chemical demulsification is widely used for the …

Demulsification mechanism of asphaltene-stabilized water-in-oil emulsions by a polymeric ethylene oxide–propylene oxide demulsifier

E Pensini, D Harbottle, F Yang, P Tchoukov, Z Li… - Energy & …, 2014 - ACS Publications
The demulsification mechanism of asphaltene-stabilized water-in-toluene emulsions by an
ethylene-oxide–propylene oxide (EO–PO) based polymeric demulsifier was studied …

Experimental study on the key influencing factors of phase inversion and stability of heavy oil emulsion: Asphaltene, resin and petroleum acid

W Pu, M He, X Yang, R Liu, C Shen - Fuel, 2022 - Elsevier
This study investigates the effects of asphaltene, resin and petroleum acid on the phase
inversion, stability and oil–water interface characteristics of emulsions. First, different ratios …