DEVICE FOR SEPARATION OF GAS FROM LIQUID-GAS MIXTURE Russian patent published in 2016 - IPC E21B43/38 

FIELD: oil and gas industry.

SUBSTANCE: invention is intended for separation of gas from liquid-gas mixture (LGM) at its transfer. Device for separation of gas from liquid-gas mixture comprises a suction pipe with axial channel, a row of cups arranged in-series one above the other on the suction pipe. Suction pipe from outside is equipped with packer, the first additional branch pipe with axial channel is inserted, from above to suction pipe concentrically, and the second additional branch pipe with axial channel is inserted into the first additional branch pipe from the top. First additional branch pipe is equipped with an additional row of in-series arranged one above the other on the suction tube cups, wherein all the cups in rows at the bottom are equipped with perforated holes, and diameters of the cups in rows increases from top to bottom. In the upper part of the first additional branch pipe houses resilient cup passing upwards, tubing-casing annulus between the packer and elastic cuff is connected with the axial channel of the first additional branch pipe with the help of the first row of taps, and the tubing-casing annulus above the elastic collar passing upwards, is connected with the axial channel of the second additional branch pipe with the help of the second row of taps. Swirler made as a screw is installed in the axial channel of the suction pipe.

EFFECT: higher efficiency of separating gas from LGM, as well as high reliability and broader functional capabilities of its operation.

1 cl, 1 dwg