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Fluid Dynamics

, Volume 53, Issue 4, pp 517–530 | Cite as

Front Regime of Heat and Mass Transfer in a Gas Hydrate Reservoir under the Negative Temperature Conditions

  • L. I. Lobkovskii
  • M. M. Ramazanov
Article
  • 3 Downloads

Abstract

The analytical self-similar solution to the nonlinear problem of the front regime of heatand- mass transfer in a gas hydrate reservoir under the negative temperature conditions is obtained. In the initial state the reservoir is assumed to be saturated with a heterogeneous gas hydrate–ice–gas mixture. In particular cases there may be no ice or/and gas. The ice and gas are formed behind the gas hydrate dissociation front. The calculations are presented for a stable hydrate–gas system. The critical curves are constructed in the well-pressure–reservoir-permeability plane. These curves separate the domains of the front regime and the regime of volume gas hydrate dissociation ahead of the front. The velocity of the gas hydrate dissociation front is investigated as a function of various problem parameters. The characteristic temperature and pressure distributions corresponding to various regimes on the diagram are investigated.

Key words

flow through a porous medium gas hydrate deposits dissociation regimes analytical solution critical diagrams 

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  1. 1.Shirshov Institute of Oceanology of the Russian Academy of SciencesMoscowRussia
  2. 2.Institute for Geothermics Problems of the Dagestan Scientific Center of the Russian Academy of SciencesMakhachkalaRussia

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