PUBLISHED PAPERS #01.2
| Eldar Shahbazov, Shamil Farzalizade, Turkan Zeynalzade. Van der Waals Interaction of Nanonized Oil Particles in a Porous Medium |
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| Abstract. The article proposes an analytical calculation of van der Waals forces acting on oil by nanoparticles, which suggests their role in changing the rheological properties of oil and the subsequent transition to a new regime. In the intricate geometrical configurations of the oil and gas industry, understanding Van der Waals interactions governing nanofluid particles within porous media becomes crucial. Results demonstrate a flat-sphere model for nanofluid behavior in porous media, specifically between oil, rock, and nanoparticles. The free energy associated with non-retarded Van der Waals interactions is expressed through equations, revealing the proportional relationship with the Hamaker constant. Utilizing addition rules for multicomponent systems, the study calculates the Hamaker constants for aluminum, sand, and oil, showcasing the superiority of nano-induced Van der Waals forces compared to porous media without nanoparticle exposure. Furthermore, according to laboratory data of nanoparticle injection study, 5 models for the dependence of surface tension, force, and nanoparticle concentration have been constructed. |
| Keywords: van der Waals forces, nanofluid, nanotechnology, small concentrations and perturbance effect, Hamaker constant, oil rheology |
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