FIELD: mining, particularly to develop and rework producing wells, particularly to stimulate formation fluid inflow.
SUBSTANCE: device comprises rod stem with cylinder, bottom support connected to the cylinder, conventional pumping unit. Arranged in the cylinder is piston with check valve. The conventional pumping unit is connected to piston by rod stem so that in piston stroke top well is communicated with cylinder interior. Device comprises pump with piston for oil production located in well over the cylinder. Pump piston is connected by means of rod with piston of cylinder used for well bottom treatment. Support length is equal to distance from well perforation to well bottom and is fastened to cylinder bottom.
EFFECT: possibility of shock-wave well bottom treatment along with oil production.
1 dwg
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RU2299978C1 |
