OIL DEPOSIT DEVELOPMENT METHOD Russian patent published in 2013 - IPC E21B43/00 E21B43/02 

FIELD: oil and gas industry.

SUBSTANCE: during oil deposit development air is pumped through injection wells and oil is extracted through producing wells. Bed shaliness and sintering temperature for clay is predetermined; then in-place permeability is defined after clay sintering; a radius of borehole environment with varied permeability is calculated where balancing of injection pressure with formation pressure takes place. Borehole environment of the injection well is treated thermally by air pumping and arrangement of dry burning in the borehole environment and sintering of clays till the calculated radius is reached in the area treated thermally. At that air pumping is stopped periodically and water is pumped in order to cool and crack sintered clay. Thereafter pumping of a working agent is started.

EFFECT: improvement of oil recovery factor for the oil deposit with low-permeability reservoir.

1 ex, 3 dwg