Characteristics and Breaking Conditions of Water-In-Oil Emulsions Based on Crude Oil from the Tailakovskoye Oil Field.
Saved in:
| Title: | Characteristics and Breaking Conditions of Water-In-Oil Emulsions Based on Crude Oil from the Tailakovskoye Oil Field. |
|---|---|
| Authors: | Ivanova, L. V.1 (AUTHOR) ivanova.l@gubkin.ru, Koshelev, V. N.1 (AUTHOR), Dengaev, A. V.1 (AUTHOR), Sidibe, M. S.1 (AUTHOR) |
| Source: | Petroleum Chemistry. Jun2025, Vol. 65 Issue 6, p696-703. 8p. |
| Subjects: | Physical & theoretical chemistry, Petroleum, Ultrasonic effects, Oil fields, Base oils |
| Abstract: | The physicochemical properties and group composition of crude oil from the Tailakovskoye oil field were examined. As the temperature was lowered from 50 to 10°C, the structural and mechanical properties of the 20, 40, 60, and 70% water-in-oil emulsions (WOEs) of this oil were characterized and investigated. The mean molecular weights and spectral characteristics were evaluated for the resins and asphaltenes isolated both from the crude oil under study and from the stabilizing layers of the emulsions. The average molecule of the stabilizing layer asphaltenes was found to have a higher molecular weight than that of the parent oil asphaltenes. It was further shown that the WOE viscosity abruptly increases with rising water cut, especially at low temperatures: at 10°C the viscosity of the 70% WOE exceeded that of the parent crude oil by a factor of over 50. This is associated with the strengthening of the protective interfacial films surrounding water droplets. The emulsion stabilizers were found to mainly consist of asphaltenes. IR spectroscopy showed that the asphaltenes isolated from the stabilizing layer had a greater content of condensed and aliphatic moieties than the resins and asphaltenes from the parent crude oil. Finally, the effect of ultrasonic treatment on the dispersion of the WOEs was investigated for different water contents. The greatest sonication effect was observed for the WOEs with high water cuts. [ABSTRACT FROM AUTHOR] |
| Copyright of Petroleum Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | The physicochemical properties and group composition of crude oil from the Tailakovskoye oil field were examined. As the temperature was lowered from 50 to 10°C, the structural and mechanical properties of the 20, 40, 60, and 70% water-in-oil emulsions (WOEs) of this oil were characterized and investigated. The mean molecular weights and spectral characteristics were evaluated for the resins and asphaltenes isolated both from the crude oil under study and from the stabilizing layers of the emulsions. The average molecule of the stabilizing layer asphaltenes was found to have a higher molecular weight than that of the parent oil asphaltenes. It was further shown that the WOE viscosity abruptly increases with rising water cut, especially at low temperatures: at 10°C the viscosity of the 70% WOE exceeded that of the parent crude oil by a factor of over 50. This is associated with the strengthening of the protective interfacial films surrounding water droplets. The emulsion stabilizers were found to mainly consist of asphaltenes. IR spectroscopy showed that the asphaltenes isolated from the stabilizing layer had a greater content of condensed and aliphatic moieties than the resins and asphaltenes from the parent crude oil. Finally, the effect of ultrasonic treatment on the dispersion of the WOEs was investigated for different water contents. The greatest sonication effect was observed for the WOEs with high water cuts. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 09655441 |
| DOI: | 10.1134/S0965544125600456 |
