Mechanisms of oil displacement from a porous medium using nanofl uids based on carbon nanoparticles

This paper provides a mini-review of existing methods for increasing oil recovery and the location of carbon nanoparticle displacement technologies. A new mechanism of oil displacement from a porous medium is proposed, which is unique to carbon nanoparticles and is associated with the formation of a self-organizing nanostructured film at the interface between hydrocarbon and nanofluid media. In this study, an experimental technique is proposed for observing the processes of film formation and motion during the movement of fluids relative to each other and relative to a solid surface (monocrystalline silicon). It is shown that during the movement of the film relative to the substrate, corrugated surfaces are formed, accelerating the movement of fluids. The corrugated surface of the film is the result of the Kelvin-Helmholtz instability. The paper introduces a new dimensionless parameter equal to the ratio of Van der Waals forces and capillary forces.