DEVICE FOR CLEANING PERFORATION ZONE OF THE WELL Russian patent published in 2021 - IPC E21B28/00 E21B37/00 

FIELD: oil industry.

SUBSTANCE: invention relates to a device for cleaning the perforated zone of wells. The device for cleaning the perforation zone of the well contains a housing having a passage channel, upper and lower connecting threads. An impact mechanism is installed in the passage channel with the help of an axis, consisting of a crank and a three-blade drive, connected by a pin. The body is provided with a flange on the outside, the outer surface of which is equipped with reinforced teeth and has radial holes in which two spring-loaded strikers are installed. The flange has two channels with the possibility of directing the jet into the zone of destruction of solid particles by a striker.

EFFECT: increased effective cleaning of the perforation zone of the well by increasing the frequency and amplitude of shock loads and fluid pulsation.

1 cl, 4 dwg