000			01711nab a2200205 4500
005			20260520001804.0
008			260224s2010 xxu
245	0	0	_aSimulating the ES-SAGD process with solvent mixture in Athabasca reservoirs
260			_a _b _cene. 2010
270			_a23/06/2010 ; 23/06/2010
300			_a10 p. ; 38-47
520			_aTranscripción del resumen del autor. The ES-SAGD process was developed to improve the energy and oil drainage efficiency of the SAGD process. The idea of the ES-SAGD process is to co-inject solvent with steam and the co-injected solvent mixes with the bitumen to further reduce the viscosity of the heated bitumen along the boundary of the steam chamber thus enhances the oil recovery. Practically, the co-injected solvent will be a solvent mixture (such as diluent /naphtha) because of its availability and reduced cost than a pure hydrocarbon. This paper reports the results of an ES-SAGD lab test conducted with steam and diluent co-injection using Athabasca bitumen. To simulate the ES-SAGD test, a pseudo-component scheme to represent the complex solvent mixture in the numerical model is derived, based on the diluent composition and measured PVT data. The behaviours and ef- fects of the co-injected solvent in the ES-SAGD process are analyzed through detailed history matching of the ES-SAGD test. Numerical sensitivity analyses are also performed to investigate the effects of some key parameters in the numerical approach.
581			_a1
773	0		_tJournal of Canadian Petroleum Technology _g49
942			_cARTICULO
100	1		_aDeng, X. _943109
100	1		_aHuang, H. _936896
100	1		_aZhao, L. _921446
999			_c171288 _d171288