OIL FIELD DEVELOPMENT METHOD Russian patent published in 2006 - IPC E21B43/22 

FIELD: oil production industry, particularly to stimulate oil production with the use of chemical reagents.

SUBSTANCE: method involves injecting solution through injection well via tubing string; providing solution decomposition to generate heat; injecting water; lifting oil via productive wells. The solution is 50% hydrogen peroxide and solution volume is equal to 0.3 of void volume. Hydrogen peroxide is supplied between two plugs with the use of liquid, which is inert to hydrogen peroxide. Volume of above liquid is equal to 1.1 tubing string volumes. Catalyst, for instance potassium hydroxide, is injected in well before the first plug forming. Potassium hydroxide volume is equal to 0.1 hydrogen peroxide volume. After two plugs forming 5% solution sodium permanganate is supplied in well and then oil is displaced to producing wells by water. The liquid, which is inert to hydrogen peroxide, is acetate bumper.

EFFECT: increased efficiency of residual oil production due to improved action on bound water.

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