IOR-12 PHYSICO-CHEMICAL IOR METHOD FOR CYCLIC STEAM STIMULATION OF HIGH- VISCOSITY OIL RESERVOIR Abstract 1 Technology has been developed to improve the efficiency of steam-cyclic treatment of wells in high-viscosity oil fields using chemical reagents. We propose to inject the composition of substances before steam infusion which are capable to form CO2 and ammoniac buffer system in the formation under the influence of steam temperature. In this case the formation of steam tongues (fingers) is realized at a maximum. 2D computer cluster model has been developed for the formation and propagation of steam tongues due to which steam-heated zone is


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