000			02500nab a2200193 4500
005			20260520001755.0
008			260224s2009 xxu
245	0	0	_aSAGD laboratory experimental and numerical simulation studies _bA review of current status and future issues
260			_a _b _coct. 2009
270			_a16/06/2010 ; 16/06/2010
300			_a16 p. ; 135-150
520			_aTranscripción del resumen del autor. With around 7 trillion-barrel reserves and recent increases in oil demand, there is no doubt that there will be a tremendous demand on the development of heavy oil/bitumen (HO-B) reservoirs in the coming decades. Yet the in-situ recovery of HO-B is still not a simple process and there are many technical challenges accompanying it. Two major techniques, namely thermal and miscible, have been considered in HO-B development, along with several other auxiliary methods (chemical, gas, electromagnetic heating, etc.) for different well configurations, with steam assisted gravity drainage (SAGD) being the most popular. Miscible techniques are not highly recognized as a commercial option, while thermal techniques have by far a more stable foundation in the industry. Despite a remarkable amount of laboratory experiments and computational studies on thermal techniques for HO-B, specifically SAGD, there was no extensive and critical literature review of the knowledge gained over almost three decades. We believe that this kind of review paper on the status of the SAGD process will shed light on the critical aspects, challenges, deficiencies and limitations of the process. This will open doors to further development areas, and new research topics. This paper focuses mainly on laboratory and numerical simulation studies, not field experiences. The attempt is to draw a picture of the developments on the physics and technical aspects of the process and its future needs. Specific attention, was given to (a) the effect of geological environment on the physics of the process, (b) evaluation of the laboratory scale procedure and results, (c) problems faced in numerical modelling (capturing the physics of the process, relative permeability curves, dynamics of gravity controlled counter-current flow), and (d) operational and technical challenges.
581			_a3-4
773	0		_tJournal of Petroleum Science & Engineering _g68
942			_cARTICULO
100	1		_aAl-Bahlani, Al-Muatasim _942841
100	1		_aBabadagli, Tayfun _921679
999			_c171106 _d171106