| Автор | Le, Nhu Y Thi |
| Автор | Pham, Duy Khanh |
| Автор | Le, Kim Hung |
| Автор | Nguyen, Phuong Tung |
| Дата выпуска | 2011-09-01 |
| dc.description | SiO<sub>2</sub> nanoparticles (NPs) were synthesized by the sol–gel method in an ultrasound reactor and monodispersed NPs with an average particle size of 10–12 nm were obtained. The synergy occurring in blending NPs and anionic surfactant solutions was identified by ultra-low interfacial tension (IFT) reduction measured by a spinning drop tensiometer (Temco500). The oil displacement efficiency of the synergistic blends and surfactant solutions at Dragon South-East (DSE) reservoir temperature was evaluated using contact angle measurement (Dataphysics OCA 20). It was found that SiO<sub>2</sub>/surfactant synergistic blends displace oil as well as their original surfactant solutions at the same 1000 ppm total concentration. Abundant slag appearing in the SiO<sub>2</sub>/surfactant medium during oil displacement could be attributed to an adsorption of surfactants onto the NPs. The results indicate that at a concentration of 1000 ppm in total, the original surfactant SS16-47A and its blend with SiO<sub>2</sub> NPs in the ratio of 8:2 exhibited an IFT reduction as high as fourfold of the IFT recorded for the DSE oil–brine interface and very high speed of oil displacement. Therefore, it could potentially be applicable to enhanced oil recovery (EOR) in high-temperature reservoirs with high hardness-injection-brine, like the one at DSE. This opens up a new direction for developing effective EOR compositions, which require less surfactant and are environmentally safer. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2011 Vietnam Academy of Science & Technology |
| Название | Design and screening of synergistic blends of SiO<sub>2</sub> nanoparticles and surfactants for enhanced oil recovery in high-temperature reservoirs |
| Тип | paper |
| DOI | 10.1088/2043-6262/2/3/035013 |
| Electronic ISSN | 2043-6262 |
| Print ISSN | 2043-6254 |
| Журнал | Advances in Natural Sciences: Nanoscience and Nanotechnology |
| Том | 2 |
| Первая страница | 35013 |
| Последняя страница | 35018 |
| Аффилиация | Le, Nhu Y Thi; Institute of Applied Materials Science (IAMS), Vietnam Academy of Science and Technology, 1 Mac Dinh Chi Street, District 1, Ho Chi Minh City, Vietnam |
| Аффилиация | Pham, Duy Khanh; Institute of Applied Materials Science (IAMS), Vietnam Academy of Science and Technology, 1 Mac Dinh Chi Street, District 1, Ho Chi Minh City, Vietnam |
| Аффилиация | Le, Kim Hung; Institute of Applied Materials Science (IAMS), Vietnam Academy of Science and Technology, 1 Mac Dinh Chi Street, District 1, Ho Chi Minh City, Vietnam |
| Аффилиация | Nguyen, Phuong Tung; Institute of Applied Materials Science (IAMS), Vietnam Academy of Science and Technology, 1 Mac Dinh Chi Street, District 1, Ho Chi Minh City, Vietnam |
| Выпуск | 3 |
