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Influence of Surfactant and Weak-Alkali Concentrations on the Stability of O/W Emulsion in an Alkali-Surfactant–Polymer Compound System
[Image: see text] Emulsions have emerged as advanced materials for wide industrial applications because of their unique properties. In the actual application in oilfields, emulsions can significantly enhance oil recovery. In the present study, the stability test shows that the concentrations of a su...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7905936/ https://www.ncbi.nlm.nih.gov/pubmed/33644608 http://dx.doi.org/10.1021/acsomega.0c06142 |
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author | Zhang, Jie Ge, Dangke Wang, Xiaoyan Wang, Wei Cui, Dandan Yuan, Guangyu Wang, Keliang Zhang, Wei |
author_facet | Zhang, Jie Ge, Dangke Wang, Xiaoyan Wang, Wei Cui, Dandan Yuan, Guangyu Wang, Keliang Zhang, Wei |
author_sort | Zhang, Jie |
collection | PubMed |
description | [Image: see text] Emulsions have emerged as advanced materials for wide industrial applications because of their unique properties. In the actual application in oilfields, emulsions can significantly enhance oil recovery. In the present study, the stability test shows that the concentrations of a surfactant and alkali and salinity have a great influence on the stability of the emulsion, but the addition of excessive chemical agents may adversely affect the emulsion stability. The addition of excessive alkali causes the phase inversion behavior of the emulsion to be discovered, which is also the main reason for the destabilization of the oil-in-water emulsion. Rheological experiments reveal that the emulsion produced by the chemical-flooding fluid is a pseudoplastic fluid, and the apparent viscosity decreases with the increase of the shear rate. Core-flooding experiments were conducted to study the effect of the emulsion stability on enhanced oil recovery, and the results indicate that the system with a better emulsion stability has higher oil recovery and displacement pressure. |
format | Online Article Text |
id | pubmed-7905936 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-79059362021-02-26 Influence of Surfactant and Weak-Alkali Concentrations on the Stability of O/W Emulsion in an Alkali-Surfactant–Polymer Compound System Zhang, Jie Ge, Dangke Wang, Xiaoyan Wang, Wei Cui, Dandan Yuan, Guangyu Wang, Keliang Zhang, Wei ACS Omega [Image: see text] Emulsions have emerged as advanced materials for wide industrial applications because of their unique properties. In the actual application in oilfields, emulsions can significantly enhance oil recovery. In the present study, the stability test shows that the concentrations of a surfactant and alkali and salinity have a great influence on the stability of the emulsion, but the addition of excessive chemical agents may adversely affect the emulsion stability. The addition of excessive alkali causes the phase inversion behavior of the emulsion to be discovered, which is also the main reason for the destabilization of the oil-in-water emulsion. Rheological experiments reveal that the emulsion produced by the chemical-flooding fluid is a pseudoplastic fluid, and the apparent viscosity decreases with the increase of the shear rate. Core-flooding experiments were conducted to study the effect of the emulsion stability on enhanced oil recovery, and the results indicate that the system with a better emulsion stability has higher oil recovery and displacement pressure. American Chemical Society 2021-02-12 /pmc/articles/PMC7905936/ /pubmed/33644608 http://dx.doi.org/10.1021/acsomega.0c06142 Text en © 2021 The Authors. Published by American Chemical Society Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Zhang, Jie Ge, Dangke Wang, Xiaoyan Wang, Wei Cui, Dandan Yuan, Guangyu Wang, Keliang Zhang, Wei Influence of Surfactant and Weak-Alkali Concentrations on the Stability of O/W Emulsion in an Alkali-Surfactant–Polymer Compound System |
title | Influence of Surfactant and Weak-Alkali Concentrations
on the Stability of O/W Emulsion in an Alkali-Surfactant–Polymer
Compound System |
title_full | Influence of Surfactant and Weak-Alkali Concentrations
on the Stability of O/W Emulsion in an Alkali-Surfactant–Polymer
Compound System |
title_fullStr | Influence of Surfactant and Weak-Alkali Concentrations
on the Stability of O/W Emulsion in an Alkali-Surfactant–Polymer
Compound System |
title_full_unstemmed | Influence of Surfactant and Weak-Alkali Concentrations
on the Stability of O/W Emulsion in an Alkali-Surfactant–Polymer
Compound System |
title_short | Influence of Surfactant and Weak-Alkali Concentrations
on the Stability of O/W Emulsion in an Alkali-Surfactant–Polymer
Compound System |
title_sort | influence of surfactant and weak-alkali concentrations
on the stability of o/w emulsion in an alkali-surfactant–polymer
compound system |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7905936/ https://www.ncbi.nlm.nih.gov/pubmed/33644608 http://dx.doi.org/10.1021/acsomega.0c06142 |
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