METHOD AND DEVICE FOR BORE-HOLE GAS GENERATOR Russian patent published in 2014 - IPC E21B43/24 F22B1/26 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions relates to the bore-hole steam generator. The device can include an entry section, a combusting section and a steam generating section. System of bore-hole steam generator contains the entry section capable to deliver fuel and oxidiser to the combustion chamber; the combusting section containing a liner and the steam generating section with a nozzle. The liner forms the combustion chamber. Herewith the liner includes the flow path passing through the liner to deliver medium to it. Steam generating section can deliver fluid from the liner flow path to the combustion chamber. At that the nozzle is connected to the liner by a tube that ensures communication in fluid between the liner flow path and the nozzle. Fuel, oxidiser and fluid are fed to the device. Fuel and oxidiser are burnt in the combustion chamber with fluid supply through a number of channels passing through the liner. Fluid is heated and the liner is cooled. Drops of heated fluid are fed to the chamber. Drops are converted to steam by means of burning.

EFFECT: improving efficiency of oil extraction from the strata.

48 cl, 22 dwg