000			01593nab a2200205 4500
005			20260520001755.0
008			260224s2009 xxu
245	0	0	_aEffect of drainage height and permeability on SAGD performance
260			_a _b _csept. 2009
270			_a14/06/2010 ; 11/06/2010
300			_a8 p. ; 99-106
520			_aTranscripción del resumen del autor. Steam assisted gravity drainage (SAGD) is now considered a commercially successful technique for the recovery of heavy oil and bitumen in Canada. However, our theoretical understanding of the process is based on greatly simplified analytical models which do not always provide accurate assessment of the influence of various process variables. Hence there remains a need for improved analytical models. This paper presents a new semi-analytical model to predict the oil production rate in SAGD. This model was used to study the effects of drainage height and reservoir permeability on production performance. In this model heat conduction problem ahead of the interface is solved by heat integration method (HIM) in an arbitrary orthogonal coordinate system under unsteady-state condition. Several dimensionless numbers are introduced and their relationships are investigated for better understanding of the combination of heat conduction and gravity drainage mechanisms.
581			_a1-2
773	0		_tJournal of Petroleum Science & Engineering _g68
942			_cARTICULO
100	1		_aHeidari, M. _942594
100	1		_aPooladi-Darvish, M. _939843
100	1		_aMaini, B. _937036
999			_c170950 _d170950