FIELD: oil and gas industry.
SUBSTANCE: device contains a body mounted on the tubing string with an input channel for supplying the working agent and a central supply channel of the pumped medium. At the top of the device there is a vortex mixing chamber with a flow energizer and outlet channels. A packer is connected to the body. It is designed to separate annular space. The central channel of pumped medium supply is flow-through. It passes through the upper part of the vortex chamber, where the seat pocket is made. A removable tubular insert with a U-shaped longitudinal section is freely disposed in this seat pocket. Radial channels are provided in it, communicating a central channel with a vortex chamber. In this case, the central channel is formed with a diameter enabling the well treatment equipment to pass through it after the insert is removed from the channel.
EFFECT: improved efficiency of the device operation by reducing the terms of well testing, intensification of oil and gas inflows and the possibility of formation treatment with perforators and various solutions without removing the device from the well.
1 dwg
