DOWNHOLE GAS GENERATOR Russian patent published in 2016 - IPC E21B36/02 

FIELD: oil industry.

SUBSTANCE: group of inventions relates to methods and systems for oil production using downhole steam and gas generator. System of downhole steam and gas generator comprises housing made with possibility of installation in production well bottom zone. Housing includes a first casing section with oil and gas mixture chamber, the second casing section with combustion chamber and connected to the first structural section, gas generator, multiple heat exchange tubes and exhaust opening. Note here that first body section has at least one inlet opening in the mixing chamber for oil and gas to allow passage of oil from oil reservoir production well in oil and gas mixing chamber. Note here that first body section additionally has at least one outlet opening outside the mixing chamber to allow passage of mixed oil from oil reservoir, and exhaust gas from the mixing chamber. Besides, at least one outlet opening is made remote at a preset distance from at least one intake opening. Gas generator is made with possibility of fuel combustion in combustion chamber. Multiple heat exchange tubes are arranged in the oil and gas mixing chamber. Heat exchange tubes are connected for transfer of heat generated in combustion chamber, to oil containing in header of oil and gas mixing chamber. Exhaust opening is arranged for supply of exhaust gas from combustion chamber into oil and gas mixing chamber.

EFFECT: high efficiency of oil production.

19 cl, 17 dwg