000			01827nab a2200217 4500
005			20260520002038.0
008			260224s2012 xxu ing
041			_aInglés
100	1		_aQiao, L.P. _952790
100	1		_aWong, R.C.K. _927573
100	1		_aKantzas, A. _919391
245	0	0	_aDetermination of Biot's Effective-Stress Coefficient for Permeability of Nikanassin Sandstone
260			_a _b _cmayo 2012
270			_a03/12/2012 ; 03/12/2012
300			_a4 p. ; 193-197
520			_aTranscripción del resumen del autor In Alberta and British Columbia, a huge amount of tight gas is trapped in relatively low-permeability rock formations. Physical fracturing of these formations could enhance the overall formation permeability and thus improve tight gas extraction. One of the outstanding issues in rock fracturing is to determine the magnitude of applied effective stress. The general effective-stress law is defined as seff = sc - asp, where sc and sp are total confining stress and fluid pore pressure, respectively. Each physical quantity of rock responds to total stress and pore pressure in a different way, and thus each quantity has its own unique Biot's effective-stress coefficient. The main objective of this study is to experimentally determine the Biot's coefficient for permeability of Nikanassin sandstone. A series of permeability measurements was conducted on Nikanassin sandstone core samples from the Lick Creek region in British Columbia under various combinations of confining stress and pore pressure. In addition, permeability values were measured both along and across bedding planes to investigate any anisotropy in the Biot's coefficient.
581			_a3
773	0		_tJournal of Canadian Petroleum Technology _g51
942			_cARTICULO
999			_c187465 _d187465