FIELD: pumping equipment for testing and completing wells.
SUBSTANCE: well fluid plant contains, mounted on column of pipes in upward direction, packer with central channel made in it and fluid pump, in body of which channels are made for feeding working substance into nozzle, for draining a mixture of substances and for feeding substance extracted from well. Nozzle of fluid pump through working substance feed channel is connected to behind-pipe space of pipes column, while feed channel for extracted substance on the side of its inlet and output of diffuser through draining channel for mixture of substances are connected to internal hollow of pipes column. In the body of fluid pump, coaxially to pipes column, switch of working substance flow is mounted in form of supporting bushing spring-loaded relatively to body, moveable in axial direction, with stopping flange positioned in a recess of body. In the body of fluid pump above stopping flange of supporting bushing an annual channel is made, connected to working substance feed channel through extracted substance feed channel and a nozzle, and in supporting bushing bypass apertures are made and mounting position for setting up pressurization unit with aperture for letting through logging cable for suspension of devices or for mounting a depression insert on mounting position, having check valve and autonomous devices suspended on it. In original top position of supporting bushing, output of channel for draining a mixture of substances and of channel for feeding drained substance are overlapped with aforementioned bushing. In bottom position of supporting bushing its upper end is positioned lower than outlet of channel for draining a mixture of substances. Bypass apertures of supporting bushing are connected to inlet of feed channel for drained substance.
EFFECT: increased reliability of operation and increased productiveness of plant.
2 cl, 3 dwg
