Nonlinearity of Filtration Laws in Low-Permeable Collectors | Zendy

А. M. Svalov | Zendy

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Nonlinearity of Filtration Laws in Low-Permeable Collectors

Author(s) -

А. M. Svalov

Publication year - 2020

Publication title -

oil and gas technologies

Language(s) - English

Resource type - Journals

ISSN - 1815-2600

DOI - 10.32935/1815-2600-2020-129-4-34-38

Subject(s) - filtration (mathematics) , adsorption , permeability (electromagnetism) , nonlinear system , pressure gradient , mechanics , volumetric flow rate , flow (mathematics) , materials science , chemistry , mathematics , membrane , physics , biochemistry , statistics , organic chemistry , quantum mechanics

Filtration processes in low-permeability oil and gas reservoirs are characterized by non-linearity of filtration laws, which determines the features of mathematical modeling of these processes. Based on the concept of the formation of adsorption-solvate layers of a filtering liquid near the pore surface, which narrow the effective flow section of the pore channels, nonlinear dependences of the filtration rate on the applied pressure gradient are obtained. The obtained dependencies are in good agreement with the available experimental data and can be recommended for use in mathematical modeling of filtration processes in low-permeability rocks.

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