Petroleum emulsions are complex and heterogeneous dispersions that frequently occur during crude oil production, transportation, and processing. These systems most commonly exist as water-in-oil (W/O) emulsions, in which fine droplets of water are dispersed within the continuous oil phase. The formation and stability of such emulsions are governed by a combination of chemical and physical factors. Natural surface-active components present in crude oil, particularly asphaltenes and resins, play a crucial role in stabilizing these emulsions by adsorbing at the oil–water interface and forming rigid, viscoelastic interfacial films that hinder droplet coalescence. Resins not only enhance the solubility and dispersibility of asphaltenes but also influence interfacial rheology and film strength. In addition to these organic stabilizers, the presence of fine mineral solids, wax crystals, and trace metals can further contribute to emulsion stability by acting as physical barriers at the interface. Physical conditions such as shear rate, temperature, pH, salinity, and mineral composition of the formation water also significantly affect emulsion characteristics and lifetime. Although petroleum emulsions are not thermodynamically stable, they can remain intact for extended periods because of the development of strong interfacial barriers. Gaining a thorough understanding of these stabilization mechanisms is crucial for accurately predicting emulsion behavior and for designing effective demulsification and separation methods in petroleum processing.
| Published in | International Journal of Oil, Gas and Coal Engineering (Volume 13, Issue 4) |
| DOI | 10.11648/j.ogce.20251304.12 |
| Page(s) | 70-73 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2025. Published by Science Publishing Group |
Petroleum Emulsions, Asphaltenes, Resins, Stability, Interfacial Phenomena
| [1] | Sjoblom, J “Handbook of Emulsion Technology”. |
| [2] | Reza Zolfaghari, A. Fakhrul-Razi, Abdullah Luqman Chuah, Said Elnashaie “Demulsification techniques of water-in-oil and oil-in-water emulsions in petroleum industry”. |
| [3] | Mervin F Fingas, Ben Fieldhouse, James Lane, Josep V. Mullin What Causes the Formation of Water-in-Oil Emulsions Conference Paper in International Oil Spill Conference Proceedings · January 2005. |
| [4] | Mina Seidy-Esfahlan, Seyyed Alireza Tabatabaei-Nezhad, Elnaz Khodapanah “Comprehensive review of enhanced oil recovery strategies for heavy oil and bitumen reservoirs in various countries: Global perspectives, challenges, and solutions”. |
| [5] | Schramm, L. L. “Emulsions: Fundamentals and Applications in the Petroleum Industry”. |
| [6] | Chukwuemeka Nwadinigwe, Theresa Ngozi Alumona “NAASAR procedure for quantitative assessment of n-alkanes, asphaltenes and resins in crudes”. |
| [7] | Edris Joonaki, Aliakbar Hassanpouryouzband, Rod Burgass, Alfred Hase, and Bahman Tohidi “Effects of Waxes and the Related Chemicals on Asphaltene Aggregation and Deposition Phenomena: Experimental and Modeling Studies”. |
| [8] | Tadros, T. F. (2013) “Emulsion Formation, Stability and Rheology”. |
| [9] | Sweeta Akbari, Abdurahman Hamid Nour “Emulsion types, stability mechanisms and rheology”. |
| [10] | Strassner, J. E., Effect of pH on interfacial films and stability of crude oil-water emulsions. JPT 303, March (1968). |
| [11] | Moradi, M., Alvarado, V., Huzurbazar, S. “Effect of salinity on water-in-crude oil emulsion: Evaluation through drop-size distribution proxy”. Energy & Fuels, 25, 260-268 (2011). |
| [12] | Yan Peng, Xiangyu Zhang, Lihua Cheng, Hong Zhang, Jieyun Tang, Hong Chen, Qinzhen Fan, Xinping Ouyan “Effect of Asphaltenes on the Stability of Water in Crude Oil Emulsions”. |
| [13] | Mahmoudi Alemi, Mohammadi “Experimental Study on Water‑in‑Oil Emulsion Stability Induced by Asphaltene Colloids in Heavy Oil”. |
| [14] | Soroush Ahmadi, Azizollah Khormali “Petroleum Emulsion Stability and Separation Strategies”. |
| [15] | Al-Sakkaf, Onaizi “Effects of emulsification factors on the characteristics of crude oil emulsions stabilized by chemical and biosurfactants”. |
APA Style
Nabizada, O., Movsumzada, A. (2025). A Review of Factors Governing the Stability of Crude Oil Emulsion. International Journal of Oil, Gas and Coal Engineering, 13(4), 70-73. https://doi.org/10.11648/j.ogce.20251304.12
ACS Style
Nabizada, O.; Movsumzada, A. A Review of Factors Governing the Stability of Crude Oil Emulsion. Int. J. Oil Gas Coal Eng. 2025, 13(4), 70-73. doi: 10.11648/j.ogce.20251304.12
@article{10.11648/j.ogce.20251304.12,
author = {Orkhan Nabizada and Anvar Movsumzada},
title = {A Review of Factors Governing the Stability of Crude Oil Emulsion},
journal = {International Journal of Oil, Gas and Coal Engineering},
volume = {13},
number = {4},
pages = {70-73},
doi = {10.11648/j.ogce.20251304.12},
url = {https://doi.org/10.11648/j.ogce.20251304.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.20251304.12},
abstract = {Petroleum emulsions are complex and heterogeneous dispersions that frequently occur during crude oil production, transportation, and processing. These systems most commonly exist as water-in-oil (W/O) emulsions, in which fine droplets of water are dispersed within the continuous oil phase. The formation and stability of such emulsions are governed by a combination of chemical and physical factors. Natural surface-active components present in crude oil, particularly asphaltenes and resins, play a crucial role in stabilizing these emulsions by adsorbing at the oil–water interface and forming rigid, viscoelastic interfacial films that hinder droplet coalescence. Resins not only enhance the solubility and dispersibility of asphaltenes but also influence interfacial rheology and film strength. In addition to these organic stabilizers, the presence of fine mineral solids, wax crystals, and trace metals can further contribute to emulsion stability by acting as physical barriers at the interface. Physical conditions such as shear rate, temperature, pH, salinity, and mineral composition of the formation water also significantly affect emulsion characteristics and lifetime. Although petroleum emulsions are not thermodynamically stable, they can remain intact for extended periods because of the development of strong interfacial barriers. Gaining a thorough understanding of these stabilization mechanisms is crucial for accurately predicting emulsion behavior and for designing effective demulsification and separation methods in petroleum processing.},
year = {2025}
}
TY - JOUR T1 - A Review of Factors Governing the Stability of Crude Oil Emulsion AU - Orkhan Nabizada AU - Anvar Movsumzada Y1 - 2025/11/28 PY - 2025 N1 - https://doi.org/10.11648/j.ogce.20251304.12 DO - 10.11648/j.ogce.20251304.12 T2 - International Journal of Oil, Gas and Coal Engineering JF - International Journal of Oil, Gas and Coal Engineering JO - International Journal of Oil, Gas and Coal Engineering SP - 70 EP - 73 PB - Science Publishing Group SN - 2376-7677 UR - https://doi.org/10.11648/j.ogce.20251304.12 AB - Petroleum emulsions are complex and heterogeneous dispersions that frequently occur during crude oil production, transportation, and processing. These systems most commonly exist as water-in-oil (W/O) emulsions, in which fine droplets of water are dispersed within the continuous oil phase. The formation and stability of such emulsions are governed by a combination of chemical and physical factors. Natural surface-active components present in crude oil, particularly asphaltenes and resins, play a crucial role in stabilizing these emulsions by adsorbing at the oil–water interface and forming rigid, viscoelastic interfacial films that hinder droplet coalescence. Resins not only enhance the solubility and dispersibility of asphaltenes but also influence interfacial rheology and film strength. In addition to these organic stabilizers, the presence of fine mineral solids, wax crystals, and trace metals can further contribute to emulsion stability by acting as physical barriers at the interface. Physical conditions such as shear rate, temperature, pH, salinity, and mineral composition of the formation water also significantly affect emulsion characteristics and lifetime. Although petroleum emulsions are not thermodynamically stable, they can remain intact for extended periods because of the development of strong interfacial barriers. Gaining a thorough understanding of these stabilization mechanisms is crucial for accurately predicting emulsion behavior and for designing effective demulsification and separation methods in petroleum processing. VL - 13 IS - 4 ER -