Patent ID: 7743854

Claim:
A well jet device comprising a body with bypass ports and an insert with a jet pump, the insert having a pass-through channel, a channel for supplying an active medium into the jet pump nozzle, a channel for supplying a pumped-out medium to the jet pump which is in communication with the pass-through channel, and an output channel, a mounting seat being made in the pass-through channel above the channel for supplying a pumped-out medium, a sealing unit being installed on the mounting seat, and an axial channel being made in the sealing unit for passing a cable or a wire through it and the pass-through channel for the purpose of installing on said cable or wire below the jet pump in a well downhole instruments and equipment with the possibility of moving them along the wellbore when the jet pump is or is not operated, the output channel being in communication with well annular space, and sealing elements are installed on the insert, characterized in that an axially movable bearing sleeve, which is spring-loaded against the body, is installed in the body, and an insert with a jet pump is arranged on a mounting seat made in the bearing sleeve, said bearing sleeve being provided with bypass openings made in its wall, an annular recess being made in the body, which limits by its ends movement of the bearing sleeve, and, when the bearing sleeve is in its lower position, the output channel is in communication through the bypass openings and the bypass ports, and, when the bearing sleeve is in its upper position, the body bypass ports are closed by the wall of the bearing sleeve.