Study on the Properties of Compound Surfactants with PO Groups
The compound surfactant system has considerable development prospects for improving oil recovery. A synergistic effect can be achieved through the orderly arrangement of the two surfactants on the interface, which can make up for the performance defects of a single surfactant. In this paper, the eff...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/2/513 |
| _version_ | 1797344069979996160 |
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| author | Biao Wang Xue Wang Futang Hu Xiangyu Wang Zhongji Yang Xiuyu Zhu Gen Li Keliang Wang |
| author_facet | Biao Wang Xue Wang Futang Hu Xiangyu Wang Zhongji Yang Xiuyu Zhu Gen Li Keliang Wang |
| author_sort | Biao Wang |
| collection | DOAJ |
| description | The compound surfactant system has considerable development prospects for improving oil recovery. A synergistic effect can be achieved through the orderly arrangement of the two surfactants on the interface, which can make up for the performance defects of a single surfactant. In this paper, the effects of the number of propylene oxides (PO) in composite surfactants on interfacial tension and emulsion stability were systematically studied. The results showed that the solubility of composite surfactants was significantly improved under high-salinity conditions by adding anionic–nonionic surfactants to a single anionic surfactant. The interfacial tension of composite surfactants shows a V-shaped change of first decreasing and then increasing with the increase in PO groups. As the number of PO groups increases, the emulsion first increases and then decreases. Among the series of composite surfactants, LBAS/C<sub>12</sub>PO<sub>10</sub>S has the lowest interfacial tension, reaching the order of 10<sup>−3</sup> mN/m, and the emulsion formed by it exhibits superior stability. This indicates that the synergistic effect of the two surfactants can be improved by adjusting the number of PO groups. Furthermore, the LBAS/C<sub>12</sub>PO<sub>10</sub>S composite system can be mixed with crude oil to form Winsor III microemulsion, which has great potential for application in enhanced oil recovery via chemical flooding. |
| first_indexed | 2024-03-08T10:57:57Z |
| format | Article |
| id | doaj.art-315141bc16654138ab7b2edc22e7a67c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-08T10:57:57Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-315141bc16654138ab7b2edc22e7a67c2024-01-26T16:22:10ZengMDPI AGEnergies1996-10732024-01-0117251310.3390/en17020513Study on the Properties of Compound Surfactants with PO GroupsBiao Wang0Xue Wang1Futang Hu2Xiangyu Wang3Zhongji Yang4Xiuyu Zhu5Gen Li6Keliang Wang7Key Laboratory of Enhance Oil and Gas Recovery of Education Ministry, Northeast Petroleum University, Daqing 163318, ChinaKey Laboratory of Enhance Oil and Gas Recovery of Education Ministry, Northeast Petroleum University, Daqing 163318, ChinaResearch Institute of Drilling and Production Technology, Petro China Qinghai Oilfield Company, Dunhuang 736202, ChinaDaqing Qingxin Oilfield Development Co., Ltd., Daqing 151413, ChinaKey Laboratory of Enhance Oil and Gas Recovery of Education Ministry, Northeast Petroleum University, Daqing 163318, ChinaResearch Institute of Drilling and Production Technology, Petro China Qinghai Oilfield Company, Dunhuang 736202, ChinaKey Laboratory of Enhance Oil and Gas Recovery of Education Ministry, Northeast Petroleum University, Daqing 163318, ChinaKey Laboratory of Enhance Oil and Gas Recovery of Education Ministry, Northeast Petroleum University, Daqing 163318, ChinaThe compound surfactant system has considerable development prospects for improving oil recovery. A synergistic effect can be achieved through the orderly arrangement of the two surfactants on the interface, which can make up for the performance defects of a single surfactant. In this paper, the effects of the number of propylene oxides (PO) in composite surfactants on interfacial tension and emulsion stability were systematically studied. The results showed that the solubility of composite surfactants was significantly improved under high-salinity conditions by adding anionic–nonionic surfactants to a single anionic surfactant. The interfacial tension of composite surfactants shows a V-shaped change of first decreasing and then increasing with the increase in PO groups. As the number of PO groups increases, the emulsion first increases and then decreases. Among the series of composite surfactants, LBAS/C<sub>12</sub>PO<sub>10</sub>S has the lowest interfacial tension, reaching the order of 10<sup>−3</sup> mN/m, and the emulsion formed by it exhibits superior stability. This indicates that the synergistic effect of the two surfactants can be improved by adjusting the number of PO groups. Furthermore, the LBAS/C<sub>12</sub>PO<sub>10</sub>S composite system can be mixed with crude oil to form Winsor III microemulsion, which has great potential for application in enhanced oil recovery via chemical flooding.https://www.mdpi.com/1996-1073/17/2/513compound systeminterfacial tensionsalt solubilitymicroemulsionemulsion stability |
| spellingShingle | Biao Wang Xue Wang Futang Hu Xiangyu Wang Zhongji Yang Xiuyu Zhu Gen Li Keliang Wang Study on the Properties of Compound Surfactants with PO Groups Energies compound system interfacial tension salt solubility microemulsion emulsion stability |
| title | Study on the Properties of Compound Surfactants with PO Groups |
| title_full | Study on the Properties of Compound Surfactants with PO Groups |
| title_fullStr | Study on the Properties of Compound Surfactants with PO Groups |
| title_full_unstemmed | Study on the Properties of Compound Surfactants with PO Groups |
| title_short | Study on the Properties of Compound Surfactants with PO Groups |
| title_sort | study on the properties of compound surfactants with po groups |
| topic | compound system interfacial tension salt solubility microemulsion emulsion stability |
| url | https://www.mdpi.com/1996-1073/17/2/513 |
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