000			01680nab a2200217 4500
005			20260520003101.0
008			260224s2012 xxu ing
041			_aInglés
245	0	0	_aMathematical Model and Simulation of Gas Hydrate Reservoir Decomposition by Depressurization
260			_a _b _cmayo/jun. 2012
270			_a14/05/2013 ; 14/05/2013
300			_a6 p. ; 379-385
520			_aTraducción del resúmen del autor: The numerical model for the depressurization of methane hydrates in a confined reservoir is presented based on mass conservation in porous media, incorporating multiphase flow theory and kinetics of gas hydrate dissociation. The universal implicit difference method is adopted, and the corresponding computer program is developed. During the production of the hydrate reservoir, distribution and the physical changes are analyzed and the gas hydrate dissociation and gas production law are studied from the computation. A numerical simulation shows that the reservoir pressure is descending slowly, which benefits the stabilization of the reservoir and inevitably decreases the efficiency in the production of gas hydrates in the depressurizing process. The gas production rate is controlled by the well pressure. The results are presented to show how this model may be used to estimate a lower downhole pressure of the well for hydrate recovery and how these results depend on reservoir and hydrate properties.
581			_a3
773	0		_tOil and Gas Science and Technology _g67
942			_cARTICULO
100	1		_aZhao, J. _953177
100	1		_aShi, D. _953178
100	1		_aZhao, Y. _937942
999			_c187690 _d187690