METHOD FOR BOREHOLE PRODUCTION OF HIGH-VISCOSITY OIL Russian patent published in 2021 - IPC E21B43/24 E21B37/06 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry, in particular to the borehole production of high-viscosity oil by the steam-thermal method in a cyclic mode. The well is equipped with a column of pumping and compressor pipes (tubing pipes), equipped with a packer device above the productive reservoir and several check valves of the gas lift system. This makes it possible for one tubing pipe column to be operated in two modes for pumping heat agent: high-temperature water vapor or hot water and for the selection of warm oil and water condensate. When the heat agent is being injected, the valves of the gas lift system are in the closed position and the tubing column is a column of discharge pipes. During the production of reservoir products, a gas-lift system of oil production is carried out by pumping natural or associated petroleum gas into the inter-pipe space of the well.

EFFECT: time costs are reduced, the reagent is supplied without the use of additional devices.

1 cl, 2 dwg