Experimental study on preparation of nanoparticle-surfactant nanofluids and their effects on coal surface wettability
To improve the efficiency of coal seam water injection, the influence of nanofluids on coal surface wettability was studied based on the nano drag reduction and injection enhancement technology in the field of tertiary oil recovery. The composition optimization and performance evaluation of nanoflui...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-03-01
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| Series: | International Journal of Mining Science and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095268621001518 |
| _version_ | 1818141980073394176 |
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| author | Gang Wang Yanqing Li Enmao Wang Qiming Huang Shibin Wang Huaixing Li |
| author_facet | Gang Wang Yanqing Li Enmao Wang Qiming Huang Shibin Wang Huaixing Li |
| author_sort | Gang Wang |
| collection | DOAJ |
| description | To improve the efficiency of coal seam water injection, the influence of nanofluids on coal surface wettability was studied based on the nano drag reduction and injection enhancement technology in the field of tertiary oil recovery. The composition optimization and performance evaluation of nanofluids with nano-silica and sodium lauryl sulfate as the main components were carried out, and the effects of the nanofluid with the optimal ratio on coal wettability were studied through spontaneous upward imbibition experiments. The results show that the composite nanofluid has a lower surface tension, and the lowest value of the interfacial tension is 15.79 mN/m. Therefore, the composite nanofluid can enhance the wettability of coal. However, its effects on coal samples with different metamorphic degrees is different, that is, low rank coal is the largest, middle rank coal is the second, and high rank coal is the least. In addition, a functional relationship between time and imbibition height is found for pulverized coal with different particle sizes. When the particle size of pulverized coal is 60–80 mesh, the wettability of nanofluid to coal is best. The findings in this paper provide a new perspective for improving the water injection efficiency for coal seams with low permeability. |
| first_indexed | 2024-12-11T11:08:29Z |
| format | Article |
| id | doaj.art-f3f4e9ab8c434bf0a08d2906d0f9875c |
| institution | Directory Open Access Journal |
| issn | 2095-2686 |
| language | English |
| last_indexed | 2024-12-11T11:08:29Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Mining Science and Technology |
| spelling | doaj.art-f3f4e9ab8c434bf0a08d2906d0f9875c2022-12-22T01:09:38ZengElsevierInternational Journal of Mining Science and Technology2095-26862022-03-01322387397Experimental study on preparation of nanoparticle-surfactant nanofluids and their effects on coal surface wettabilityGang Wang0Yanqing Li1Enmao Wang2Qiming Huang3Shibin Wang4Huaixing Li5Mine Disaster Prevention and Control-Ministry of State Key Laboratory Breeding Base, Shandong University of Science and Technology, Qingdao 266590, China; Corresponding author.College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaMine Disaster Prevention and Control-Ministry of State Key Laboratory Breeding Base, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaTo improve the efficiency of coal seam water injection, the influence of nanofluids on coal surface wettability was studied based on the nano drag reduction and injection enhancement technology in the field of tertiary oil recovery. The composition optimization and performance evaluation of nanofluids with nano-silica and sodium lauryl sulfate as the main components were carried out, and the effects of the nanofluid with the optimal ratio on coal wettability were studied through spontaneous upward imbibition experiments. The results show that the composite nanofluid has a lower surface tension, and the lowest value of the interfacial tension is 15.79 mN/m. Therefore, the composite nanofluid can enhance the wettability of coal. However, its effects on coal samples with different metamorphic degrees is different, that is, low rank coal is the largest, middle rank coal is the second, and high rank coal is the least. In addition, a functional relationship between time and imbibition height is found for pulverized coal with different particle sizes. When the particle size of pulverized coal is 60–80 mesh, the wettability of nanofluid to coal is best. The findings in this paper provide a new perspective for improving the water injection efficiency for coal seams with low permeability.http://www.sciencedirect.com/science/article/pii/S2095268621001518Silica nanoparticlesComposite nanofluidsHydrophobic modificationSurface tensionSpontaneous upward imbibition |
| spellingShingle | Gang Wang Yanqing Li Enmao Wang Qiming Huang Shibin Wang Huaixing Li Experimental study on preparation of nanoparticle-surfactant nanofluids and their effects on coal surface wettability International Journal of Mining Science and Technology Silica nanoparticles Composite nanofluids Hydrophobic modification Surface tension Spontaneous upward imbibition |
| title | Experimental study on preparation of nanoparticle-surfactant nanofluids and their effects on coal surface wettability |
| title_full | Experimental study on preparation of nanoparticle-surfactant nanofluids and their effects on coal surface wettability |
| title_fullStr | Experimental study on preparation of nanoparticle-surfactant nanofluids and their effects on coal surface wettability |
| title_full_unstemmed | Experimental study on preparation of nanoparticle-surfactant nanofluids and their effects on coal surface wettability |
| title_short | Experimental study on preparation of nanoparticle-surfactant nanofluids and their effects on coal surface wettability |
| title_sort | experimental study on preparation of nanoparticle surfactant nanofluids and their effects on coal surface wettability |
| topic | Silica nanoparticles Composite nanofluids Hydrophobic modification Surface tension Spontaneous upward imbibition |
| url | http://www.sciencedirect.com/science/article/pii/S2095268621001518 |
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