FIELD: oil production industry, particularly to produce oil with high gas content with the use of borehole centrifugal electric pumps.
SUBSTANCE: device comprises body with gas-liquid mixture inlet orifices, channels adapted to supply degassed liquid to pump and separated gas discharge into hole annuity. Device also has shaft-mounted pressure stage and centrifugal separator. Device is also provided with axial fan or vortex or liquid-packed stage, which are mounted on shaft downstream of centrifugal separator in gas-liquid mixture flow direction. Axial fan or vortex or liquid-packed stage provide depression in central cavity of centrifugal separator and forced separated gas discharge into hole annuity.
EFFECT: increased efficiency of gas-liquid mixture separation along with increased degassed liquid flow through pump and increased gas content at plant inlet.
1 dwg
