Lately, main principle and basic technologies have been developed by Open Joint Stock Oil Company "Megionnefteotdacha", which affect intra-weil space through system of injectors by injecting sediment-forming and gel-forming compositions, controlling viscous and filtration parameters of formation systems. The basics of developed technologies for injectivity profiles equalization consist of redistribution (controlling) of flows front, displacing oil. Results are achieved by colmataging of washed-out most permiable formation zones and/or reduction of effective water permeability in them. Developed technologies provide for effective solution of the problem of additional recovery of residual oil reserves from watered out formations.