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The paper is devoted to simulation of the initial stage of natural gas hydrate underground storage: gas injection into aquifer just below permafrost rocks. It is based on the mathematical model of multiphase non-isothermal real gas and water flow in porous media. The model takes into account the transformation of gas and water into hydrate at certain temperature which depends on gas flow pressure. The dynamics of hydrate and water saturation as well as the pressure and temperature fields in a reservoir with given porosity, permeability and initial values of pressure, temperature and water saturation have been studied. An implicit finitedifference scheme is used to approximate the original boundary-value problem. The finitedifference equations have been solved using simple iteration and sweeping algorithms. Several examples of calculations corresponding to real cases are given. Calculations have revealed that the final result strongly depends on the combination of porosity and permeability of a reservoir.
E.A. Bondarev. 2018. \u201cUnderground Storage of Natural Gas in Hydrate State: Primary Injection Stage\u201d. Global Journal of Science Frontier Research - I: Interdisciplinary GJSFR-I Volume 17 (GJSFR Volume 17 Issue I2): .
Crossref Journal DOI 10.17406/GJSFR
Print ISSN 0975-5896
e-ISSN 2249-4626
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Total Score: 104
Country: Unknown
Subject: Global Journal of Science Frontier Research - I: Interdisciplinary
Authors: E.A. Bondarev, I.I. Rozhin, V.V. Popov, K.K. Argunova (PhD/Dr. count: 0)
View Count (all-time): 144
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Publish Date: 2018 03, Mon
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The paper is devoted to simulation of the initial stage of natural gas hydrate underground storage: gas injection into aquifer just below permafrost rocks. It is based on the mathematical model of multiphase non-isothermal real gas and water flow in porous media. The model takes into account the transformation of gas and water into hydrate at certain temperature which depends on gas flow pressure. The dynamics of hydrate and water saturation as well as the pressure and temperature fields in a reservoir with given porosity, permeability and initial values of pressure, temperature and water saturation have been studied. An implicit finitedifference scheme is used to approximate the original boundary-value problem. The finitedifference equations have been solved using simple iteration and sweeping algorithms. Several examples of calculations corresponding to real cases are given. Calculations have revealed that the final result strongly depends on the combination of porosity and permeability of a reservoir.
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