... & gas butler well pair performance steam-assisted gravity drainage steam injection rate confinement phase reservoir thickness analytical model enhanced recovery heat loss well spacing oil production rate interface equation sagd steam chamber sagd process well pair sagd performance...

... in a series of parallel well pairs. The effect of confinement was first introduced theoretically by Butler, and Stephens (1981) . A numerical calculation was done to describe the confinement effect. Afterwards, no attempt was made to model this phase of SAGD. Zargar and Farouq Ali (2018) developed...

... Abstract Heat transfer is an imperative mechanism in the SAGD (steam assisted gravity drainage) process for bitumen production. A better understanding of the heat transfer process is critical for a successful SAGD project design. Following the work of Butler (1981 , 1985 and 1997...

... model temperature profile heat capacity permeability SAGD temperature dependent property Butler base case equation thermal conductivity Introduction Steam-Assisted Gravity Drainage (SAGD) is an Enhanced Oil Recovery (EOR) method widely used for extra heavy oil production, i.e. Bitumen...

...-assisted gravity drainage concentration viscosity butler heavy oil dimensionless time steam chamber boundary layer interface mobile zone equation fraction reservoir Introduction The most commonly used in-situ thermal recovery methods for heavy oil and bitumen are cyclic steam...

... development butler production rate run 2 Literature Review Steam-Assisted Gravity Drainage – Experimental Investigation and Theoretical Development Two of the main attributes of horizontal wells are their extended contact area with the reservoir, and thus much reduced pressure drop...

... for measuring the diffusion coefficient in gases and liquids ( Reamer and Sage, 1958 ; Galvalas et al. , 1968 ; Schmidt et al. , 1982 ; Renner, 1988 ; Nguyen and Farouq Ali, 1995 , Riazi1996 ; Das and Butler, 1996 ; Wen et al. , 2005 ; Yang and Gu, 2006 ). Despite available extensive data...

... Characterization bitumen steam-assisted gravity drainage convection contribution natural convection Butler Nusselt number conduction heating temperature potential permeability gradient Introduction Thermal processes are the most successful methods for commercial recovery of heavy oil and bitumen...

... successful. Nonetheless, the economic viability of Vapex remains uncertain due to much lower oil production rates predicted by scale-up of observed laboratory model results using the transmissibility based scaling criteria developed by Butler 1 . In our previously reported experimental work, it was shown...

... recovery conventional sagd process temperature distribution upstream oil & gas conventional sagd sagd spe 56544 steam injection injection thermal method reservoir model production well breakthrough sagd-isslw process butler injection well thickness reservoir steam chamber interface...

... on an article by Butler et al. We found that optimal norm smoothing depends on the input of measurement errors. The second method uses curvature smoothing which minimizes variations in the second derivative. The latter is more effective for suppressing fluctuations in the relaxation time distribution...