METHOD OF DEVELOPMENT OF DEPOSIT OF HIGH VISCOUS OIL OR BITUMEN Russian patent published in 2009 - IPC E21B43/24 

FIELD: mining.

SUBSTANCE: method is based on application of technology of in-situ combustion by means of pumping air under high pressure into reservoir into firing zone via pressure well and successive withdrawing product from neighbour producing wells. According to the invention a portion of carbamide is pumped before air pumping through the pressure well till carbamide reaches heads of reactive producing wells. These wells are shut-in for thermo-capillary impregnation. Also there is maintained temperature within the interval of perforation of reactive wells not less, than 80°C. Pumping air into the pressure well proceeds till reservoir pressure rises. Further the reactive wells are opened for withdrawing.

EFFECT: increased efficiency of method due to exclusion of uncontrolled inrush of pumped agent into producing well and due to reduced watering of withdrawn production from this well.