Analysis Of Factors On Flue Gas Assisted Sagd Based On A 2d Visualization Physical Model

In this work, 2D visualization SAGD experiments were conducted, where a steam chamber can be observed and temperature profiles can be measured simultaneously, to analyze systematically the effect of injection factors of flue gas on SAGD performance. The experimental results show that the essential factor that affects the effect of flue gas is the size of the steam chamber and its upper space. The size of the steam chamber determines the timing of flue gas injection, and the size of the upper space of the steam chamber determines the amount of gas injected. The flue gas injection mode has a greater impact on the development of SAGD, and the flue gas can promote the steam chamber to develop upward and then expand laterally at the mixed injection condition, which greatly improves the steam chamber sweep coefficient and the recovery degree.