HYDRAULIC VIBRATOR Russian patent published in 2018 - IPC E21B28/00 E21B43/16 E21B43/25 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas production industry and can be used in the treatment of the bottomhole zone of the well. Hydraulic vibrator contains a body with hard-mounted barrel with a bottom hole and a spool, fitted with ball bearings on the barrel. Spool and barrel are made with slotted recesses arranged at an angle to their generatrix. Slots of the spool are located in the opposite direction to the slotted recesses of the trunk. Bore hole of the trunk is made hollow with a bottom in the lower part of the hole. Cylindrical sampling with an internal thread is made coaxially to the blind hole on the barrel. Vertical channels are made in the trunk between the slotted slits, each of which is communicated by means of a horizontal channel with a cavity of a blind hole in the trunk. From the outer lateral wall of the barrel, opposite each vertical bore of the barrel, radial holes are drilled, located opposite the slotted slots of the spool and communicating with their vertical channels. On the internal thread of the barrel wrapped hollow pressure screw with a spherical head, equipped with a nipple. Spherical wall of the screw head is hermetically pressed against the edge of the blind hole of the barrel, and the upper end of the pin is connected to the gas supply tube from the wellhead.

EFFECT: provided expansion of functionality by providing foaming fluid.

1 cl, 3 dwg