METHOD AND DEVICE FOR INCREASING DRYNESS OF BOILER STEAM FOR STEAM INJECTION Russian patent published in 2018 - IPC F22B37/00 E21B43/24 

FIELD: instrument engineering.

SUBSTANCE: invention relates to a method and a device for increasing the dryness of a boiler steam for steam injection. According to the method, after the dryness of the moist saturated steam at the outlet of the steam injection boiler is increased by means of a device for increasing the dryness of the steam, pumping together the moist saturated steam and the gas created by the device for increasing the dryness of the steam is performed into the oil reservoir in a sealed manner, herewith the device for increasing the dryness comprises a combined spray head, a steam heating chamber, a combustion chamber and a mixing chamber; the gas with high temperature and high pressure created by means of the combustion chamber enters the mixing chamber and is completely mixed inside it with the steam from the boiler for steam injection.

EFFECT: invention is aimed at increasing the dryness of the boiler steam for steam injection, the dryness of moist saturated steam at the outlet of the boiler for steam injection can be increased up to 95–100 %, and the results are implemented from the improvement of steam enthalpy, the replenishment of the reservoir energy, and the increase in wave and size of the steam, so as to warm up the oil reservoir more efficiently and to improve the result of the heavy oil field development.

10 cl, 7 dwg