FIELD: oil and gas industry.
SUBSTANCE: housing of gravitational gas separator consists of several pipes connected to each other by means of case couplings. A split centralising sleeve is located inside one or several case couplings. Centralising sleeve serves for centralising the cylinder of deep-well pump in the housing. On inner surface of split centralising sleeve there are longitudinal slots. Gravitational gas separator includes a coupling connected through an adapter to deep-well pump. Channels are located radially in the coupling, and removable ball check valve assemblies consisting of a collet, a ball, a seat and a rubber ring are installed in them. Adapter ending with a nipple is attached to lower part of the housing.
EFFECT: increasing service life of deep-well pump at extraction of product with inconsiderable content of mechanical impurities and high concentration of bitumen-resin-paraffin substances from wells with high gas factor.
1 cl, 2 dwg
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