oa A New Horizontal Well Concept for IOR from Light Oil Reservoirs Using Air Injections

There is growing interest in the application of air injection in deep light oil reservoirs, especiaily in remote locations and offshore. Air represents a cheap source of injection gas, and with low temperature oxidation (LTO) the oxygen is generating an in situ source of N2 or `flue gas' to carry out immiscible or miscible displacement processes. If the oil and reservoir matrix are sufficientiy reactive, high temperature oxidation (HTO) can be implemented to sustain fully-propagating in situ combustion, with excellent improved oil recovery (IOR).