..., the steam chamber is not able to spread to the oil zones above them, resulting low producing degree of the reservoir, and the indicators of development plan cannot be met. To overcome the present problems, a novel SAGD well pattern was proposed, in which oil is drained vertically and swept horizontally...

... is 80% less than that without gas. The viscosity is already low enough for drainage process. High pressure SAGD experiment shows that temperature decreases gradually from the inner part to the out range of steam chamber when injected mole percent of gas is 20%. This means the decrease of steam...

... with steam in SAGD process. This study provides a new and effective approach of improving SAGD performance with inexpensive chemical products. enhanced recovery heat loss co 2 SAGD conventional sagd process steam chamber steam injection rate sweeping efficiency experimental study reservoir...

... heavy oil in China. This paper summarizes the experience on surveillance of SAGD project in the past years. During SAGD process the adjustment of steam chamber in both vertical and horizontal direction and operation parameters should base on synthetic surveillance data. In the past, the surveillance...

.... Artificial Intelligence Upstream Oil & Gas recovery thermal method optimization problem steam chamber water temperature enhanced recovery steam-assisted gravity drainage Response Surface Methodology production well Oil Recovery viscosity society of petroleum engineers random search...

... this approach can be used as complementary method for EOR in dual-horizontal well SAGD process. thermal method oil sand SAGD bitumen temperature distribution Upstream Oil & Gas complex reservoir steam chamber enhanced recovery steam-assisted gravity drainage shale barrier new approach...

... and the length of interruption for minimizing the adverse effects on performance. SAGD Simulation Oil Saturation Distribution steam-assisted gravity drainage steam injection oil saturation thermal method Upstream Oil & Gas steam chamber steam-oil ratio steam injection rate Oil Recovery...

... of viscosity reduction. Addition of CH4 will impair SAGD process because CH4 overrides faster than steam and hinders the development of steam chamber. N2 can accelerate the oil recovery rate but has no effect on improving recovery factor. On the contrary the viscosity reduction effect of CH4 and N2 is much...