JET APPARATUS Russian patent published in 1999 - IPC

FIELD: operation of gas condensate wells. SUBSTANCE: active and passive nozzles are located over circumference coaxially alternating relative to each other. Active nozzles are made in form of axial orifices equidistant over diameter of circle. Each row of nozzles has distributing chamber made in form of circular bore connected with common suction chamber through circular slot over center diameter of this chamber; passive nozzles are made in form of circular bores which are connected with supply of passive medium by radial orifices equidistant over circle. Central nozzle is made in form of axial orifice connected directly with common suction chamber; intermediate nozzle is connected with common suction chamber through axial orifices smoothly distributed over center diameter of this nozzle and through radial orifices made above common suction chamber. EFFECT: enhanced efficiency of lifting liquid (gas) from well. 3 dwg