Liquid/liquid displacement in a vibrating capillary
Liquid/liquid displacement in a vibrating capillary
Mechanical vibrations can alter static and dynamic distributions of fluids in porous matrices. A popular theory that explains non-destructive changes in fluids percolation induced by vibrations involves elasticity of a solid matrix and compressibility of fluids. Owing to strong damping, elastic and acoustic deformations always remain bounded to narrow zones (a few centimetres) near the source of vibrations. However, field trials prove the existence of the effects that are induced by vibrations in geological reservoirs on a longer scale (hundred meters). In this work, we develop a non-elastic theory, assessing the time-averaged effects induced by small-amplitude high-frequency vibrations. We examine the immiscible liquid/liquid displacement flows in a capillary (which is a building element of a porous matrix) subjected to translational vibrations. We find that strong-enough vibrations alter the shapes of menisci and change the rates of displacement flows. We find that vibrations slow down or even stop the displacement flows (which is contrary to a common expectation that vibrations help to release fluids from a porous matrix).
multiphase flow, phase-field modelling, vibrations, time-averaged approach, liquid/liquid displacement, capillary pressure
Vorobev, Anatoliy
911a4e1e-0c34-4297-b52e-c22a2b9dec01
Prokopev, Sergei
ac7f4544-8463-4ff7-8c11-42d003c543e9
Lyubimova, Tatiana
ea977036-7fca-4d61-abf5-1da0a94c9b35
Vorobev, Anatoliy
911a4e1e-0c34-4297-b52e-c22a2b9dec01
Prokopev, Sergei
ac7f4544-8463-4ff7-8c11-42d003c543e9
Lyubimova, Tatiana
ea977036-7fca-4d61-abf5-1da0a94c9b35
Vorobev, Anatoliy, Prokopev, Sergei and Lyubimova, Tatiana
(2022)
Liquid/liquid displacement in a vibrating capillary.
Philosophical Transactions of The Royal Society A, [RSTA-2022-0090].
(doi:10.1098/rsta.2022.0090).
(In Press)
Abstract
Mechanical vibrations can alter static and dynamic distributions of fluids in porous matrices. A popular theory that explains non-destructive changes in fluids percolation induced by vibrations involves elasticity of a solid matrix and compressibility of fluids. Owing to strong damping, elastic and acoustic deformations always remain bounded to narrow zones (a few centimetres) near the source of vibrations. However, field trials prove the existence of the effects that are induced by vibrations in geological reservoirs on a longer scale (hundred meters). In this work, we develop a non-elastic theory, assessing the time-averaged effects induced by small-amplitude high-frequency vibrations. We examine the immiscible liquid/liquid displacement flows in a capillary (which is a building element of a porous matrix) subjected to translational vibrations. We find that strong-enough vibrations alter the shapes of menisci and change the rates of displacement flows. We find that vibrations slow down or even stop the displacement flows (which is contrary to a common expectation that vibrations help to release fluids from a porous matrix).
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Accepted/In Press date: 2 November 2022
Keywords:
multiphase flow, phase-field modelling, vibrations, time-averaged approach, liquid/liquid displacement, capillary pressure
Identifiers
Local EPrints ID: 472321
URI: http://eprints.soton.ac.uk/id/eprint/472321
ISSN: 1364-503X
PURE UUID: 97a9fe6f-fc1d-4737-a09d-a09266c2b71b
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Date deposited: 01 Dec 2022 17:39
Last modified: 17 Mar 2024 03:12
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Contributors
Author:
Sergei Prokopev
Author:
Tatiana Lyubimova
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