Reservoir Engineering Aspects of Light-Oil Recovery by Air Injection

摘要

This paper addresses the reservoir engineering aspects of air injec- tion as an enhanced oil recovery technique for light-oil reservoirs. In its most successful form, the process has been applied in deep, Carbonate reservoirs. The development of this process in conjunc- Tion with an application of the in-situ combustion (ISC) process to Light-oil reservoirs, as well as the main mechanisms pertaining to ISC and to gas miscible flooding, are analyzed. It is seen that var- Ious air-injection processes (API's) can be classified, depending on Their spontaneous ignition potential and gas miscibility at reservoir Conditions, into four different processes.