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On Stability of a Water Injection Front in High Temperature Rock

Authors
  • Tsypkin, G. G.1
  • 1 Ishlinsky Institute for Problems in Mechanics RAS, Moscow, Russia , Moscow (Russia)
Type
Published Article
Journal
Fluid Dynamics
Publisher
Pleiades Publishing
Publication Date
Nov 29, 2021
Volume
56
Issue
6
Pages
828–835
Identifiers
DOI: 10.1134/S0015462821060161
Source
Springer Nature
Keywords
Disciplines
  • Article
License
Yellow

Abstract

Abstract—Water injection into a high-temperature geothermal reservoir saturated with superheated vapor is investigated. The stability of the phase transition front moving at constant speed is investigated by the normal modes method. Numerical study of the obtained dispersion equation is carried out. At different values of the main parameters, the dispersion curves, characterizing the transition to instability are presented. It is shown, that transition from the stable front regime to the unstable one occurs with the increase in the permeability and initial temperature, and also with the decrease in the initial pressure.

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