000			02025nab a2200205 4500
005			20260520002039.0
008			260224s2013 xxu ing
041			_aInglés
245	0	0	_aA Comparative Study of Transient and Steady-State Three-Phase Oil Permeability
260			_a _b _cene. 2013
270			_a04/06/2013 ; 04/06/2013
300			_a9 p. ; 54-63
520			_aTranscripción del resumen del autor. Relative permeabilities for three-phase flow are commonly predicted from two-phase-flow measurements using empirical models. These empirical models are usually tested against available steady-state data. However, the oil flow is transient during various production stages [e.g., gas injection after waterflood and steamassisted gravity drainage (SAGD)]. Hence, there is a need to test the empirical models against unsteady-state or transient data. We compare two sets of three-phase oil-permeability data measured during tertiary gasflood. The first data set, which was recently published (Dehghanpour et al. 2011a), is measured during transient gravity-drainage experiments, and will be detailed further here. The second set was measured by Oak et al. (1990) during steady-state corefloods. We compare the two data sets with the corresponding two-phase permeability curves, and observe different qualitative behaviours. The comparison indicates that during steady-state tertiary gasflood, the presence and flow of water restrict the oil flow, while during transient tertiary gasflood, water-saturation drop enhances the oil flow. We test the performance of well-known empirical models further in predicting the two data sets, and explain how Stone I and saturation-weighted interpolation (SWI) should be used to usefully predict oil permeability during a three-phase tertiary displacement.
581			_a1
773	0		_tJournal of Canadian Petroleum Technology _g52
942			_cARTICULO
100	1		_aDehghanpour, H. _953314
100	1		_aDiCarlo, D. _953315
999			_c187756 _d187756