FIELD: pump engineering. SUBSTANCE: hydrodynamic emitter is mounted to the pipe column under the packer at the perforation level. There is a passageway between the chamber of a jet pump and under- packer portion. Inside the passageway is a valve-relay. The hydrodynamic emitter is connected with the passageway through a filter-clutch and with the nozzle chamber. EFFECT: enhanced efficiency. 4 cl, 1 dwg
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