Design and Prototyping of a Visible Light Indoor Positioning System

The present invention is directed to a method of oil recovery wherein a miscibility-generating fluid and a reservoir-heating medium are injected into an oil-bearing formation for which it was heretofore believed miscibility could not be generated. By injecting the heating medium, such as steam, with a miscibility-generating fluid, the minimum miscibility pressure of the fluid is lowered and miscibility is effected at a reservoir pressure below the fracture pressure of the formation.