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arXiv · 2510.19502

Correct mathematical models of joint filtration of two immiscible viscous liquids

Anvarbek Meirmanov·Akbota Senkebayeva
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Abstract

Mathematical models of joint filtration of liquids are the main part of mathematical models of oil displacement by suspension. Since mining is a very important and urgent economic task, exact modeling of joint filtration of two different fluids is also an urgent economic task. For example, mathematical models of oil displacement by suspension are needed to create a hydrodynamic simulator of oil by suspension. All the existing simulators are based on the macroscopic Buckley-Leverett model, which does not distinguish between the free boundary separating liquids and the details of liquid interaction. All these fundamental processes occur at a microscopic level corresponding to the average size of pores, while all proposed macroscopic models operate on completely different orders of magnitude and do not distinguish between free boundaries or the characteristics of fluid interactions and are simply a set of axioms. Exact modeling involves describing the process using the equations of classical Newtonian continuum mechanics at the microscopic level (average size of tens of micrometers). The only obstacle to using such models is that any numerical implementation for domains hundreds of meters in size would take years. A solution to this problem (the homogenization method) was proposed in the works of J. Keller and E. S\'anchez-Palencia.

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Anvarbek Meirmanov, Akbota Senkebayeva. 2025-10-22. Correct mathematical models of joint filtration of two immiscible viscous liquids. https://arxiv.org/abs/2510.19502

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