000			01725nab a2200229 4500
005			20260520004418.0
008			260224s2013 xxu ing
041			_aInglés
245	0	0	_aExplicitly Coupled Thermal Flow Mechanical Formulation for Gas-Hydrate Sediments
260			_a _b _cabr. 2013
270			_a28/05/2013 ; 28/05/2013
300			_a10 p. ; 196-206
520			_aTranscripción del resumen del autor: This paper presents an explicit time-marching formulation for the solution of the coupled thermal flow mechanical behavior of gas hydrate sediment. The formulation considers the soil skeleton as a deformable elastoplastic continuum, with an emphasis on the effect of hydrate (and its dissociation) on the stress-strain behavior of the soil. In the formulation, the hydrate is assumed to deform with the soil and may dissociate into gas and water. The formulation is explicitly coupled, such that the changes in temperature because of energy flow and hydrate dissociation affect the skeleton stresses and fluid (water and gas) pressures. This, in return, affects the mechanical behavior. A simulation of a vertical well within a layered soil is presented. It is shown that the heterogeneity of hydrate saturation causes different rates of dissociation in the layers. The difference alters the overall gas production and also the mechanical-deformation pattern, which leads to loading/unloading shearing along the interfaces between the layers.
581			_a2
773	0		_tSPE Journal _g18
942			_cARTICULO
100	1		_aKlar, Assaf _953238
100	1		_aUchida, Shun _953239
100	1		_aSoga, Kenichi _953240
100	1		_aYamamoto, Koji _953241
999			_c187716 _d187716