Mathematical modeling of gas desorption from a gas hydrate

Nazmutdinov, F. F.; Khabibullin, I. L.

doi:10.1007/bf02078225

Cited by 7 publications

(1 citation statement)

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“…There are several main methods of methane recovery from a methane hydrate deposit: lowering the pressure and increasing the temperature of the deposit to the point of the hydrate decomposition, and injecting organic or brine solutions that promote the gas hydrate dissociation [1][2][3][4]. The mathematical modeling of the development of gas hydrate deposits using these methods is considered in [5][6][7][8][9][10][11]. The reduction of atmospheric emissions of carbon dioxide is very important in reducing the anthropogenic impact on climate.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Model of Carbon Dioxide Injection into a Porous Reservoir Saturated with Methane and Its Gas Hydrate

2020

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In this paper, the process of methane replacement in gas hydrate with carbon dioxide during CO2 injection into a porous medium is studied. A model that takes into account both the heat and mass transfer in a porous medium and the diffusion kinetics of the replacement process is constructed. The influences of the diffusion coefficient, the permeability and extent of a reservoir on the time of full gas replacement in the hydrate are analyzed. It was established that at high values of the diffusion coefficient in hydrate, low values of the reservoir permeability, and with the growth of the reservoir length, the process of the CH4-CO2 replacement in CH4 hydrate will take place in the frontal regime and be limited, generally, by the filtration mass transfer. Otherwise, the replacement will limited by the diffusion of gas in the hydrate.

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