METHOD OF THERMAL EXPOSURE OF OIL-CONTAINING AND/OR KEROGEN-CONTAINING BEDS WITH HIGH-VISCOSITY AND HEAVY OIL AND DEVICE FOR ITS REALISATION Russian patent published in 2012 - IPC E21B43/24 

FIELD: oil and gas industry.

SUBSTANCE: method includes formation of a working fluid and its supply under pressure into oil-containing and/or kerogen-containing beds. According to the invention, the working fluid is a steam and gas catalytic mixture formed in a catalytic reactor of a liquid or gaseous carbon-containing fuel mixture due to exothermal reaction of catalytic flameless oxidation of liquid or gaseous carbon-containing fuel mixtures, and subsequent mixing of the produced product with an enrichment mixture, containing a catalyst to provide intrastratal heat-steam-gas catalytic exposure of a producing bed, made in the form of nanosized particles. The device is made in the form of a bottomhole thermal generator, comprising a casing, channels to supply liquid or gaseous fuel mixture, a device to burn a fuel mixture and an outlet single-sided nozzle for leakage of the working fluid from the device. At the same time the device to burn a fuel mixture is made in the form of at least one catalytic reactor filled with catalyst, providing for burning of liquid or gaseous carbon-containing fuel mixture at the bottomhole due to exothermal reaction of catalytic flameless oxidation of liquid or gaseous carbon-containing fuel mixtures, which occurs directly on the surface of the catalyst and during catalyst contact with liquid or gaseous carbon-containing fuel mixture. Between an outlet of the catalytic reactor and an outlet nozzle of the device there is a ballasting chamber created to form a working fluid in the form of a steam and gas catalytic mixture. Besides, a channel of enrichment mixture supply is additionally connected to the ballasting chamber, and the mixture contains a catalyst to provide for intrastratal heat-steam-gas catalytic exposure at a producing bed, made in the form of nanosized particles.

EFFECT: improved oil recovery of deposits due to higher efficiency of such deposits exposure.

31 cl, 2 dwg