SU140394A1 - Device for orienting diverters in wells and signaling - Google Patents

Description

Known devices for signaling diverters downhole built on the mechanical principle, and characterized by a single action.

The described device for orienting diverters in boreholes and signaling differs from those known in that an eccentric load plumb is inserted in the form of a rod and pivotal relative to the pivot is a hexagonal cross-section with an opening in the bottom end, while rotating the coupling performed with a pin and screw groove.

The described device allows the installation of a declining unit and verification of its correct installation multiple times without removing the device on the surface for recharging.

The drawing shows the described device in a longitudinal and transverse sections.

A device for orienting diverters in boreholes consists of a telescopic CCA detector built in between the diverter and the drillstring.

The detector consists of a central pipe 1, at the lower end of which a hexagon socket 2 is fastened and threaded for connection with a drill string. Above the coupling 2, a radial-thrust bearing 3 is seated on the pipe, on the upper holder of which a ring with an eccentrically located load, having the form of a round rod, is pressed. A spring 5 is located above the bearing, which transmits the force to the upper hex socket 6, fitted on the pipe 1. On the hex socket 6, there is a sealing nipple 7: internal hexagonal section, connecting the pipes 5 and 5. The sleeve 6 is somewhat rotated relative to the nipiel, therefore Patterns are not aligned. Pipe / through pin 10, the entrance №140394-2 of the screw groove //, is connected to the coupling. The coupling on the bottom end is provided with a socket 12, in size corresponding to an eccentric weight. At the upper end of the pipe / equipped with a stop nut 13 with a washer 14. The detector is connected to the drill pipe by an adapter 15. When the device is lowered into the inclined bore, the eccentric weight is set to the lower position due to the bearing. When lifting and turning the drill string at a small angle, the pipe 8, the coupling 2 and the pipe / pin 10 rigidly connected to it will rotate. The pin rotates the coupling 6 and, accordingly, the socket 12 with respect to the eccentric weight 4. As a result of rotation of the coupling, the socket will at some point appear above the load and at the next lowering, the load will enter the socket and the coupling b will descend through the tube 7 downwards. At the same time, the pin entering one end into the screw groove 11 will turn the pipe relative to the spindle 7, as a result of which the hexagons on the coupling 6 will be aligned and the nipple and the latter together with the drill string will fall down to the stop at the upper end of the six-sided coupling 2. This moment and will be a deflection orientation signal. To re-check the correct installation of the diverter, the drill pipe string is raised above the face and lowered again, only without turning it. In the process of lifting the nipple 7 will be disengaged from the clutch 6 and the last will be shown by turning the pin to the extreme upper polishing by means of a spring 5. If the socket is in the lower position and the tiltr, the trench of which, before descending, is oriented in the necessary direction relative to the socket, respectively takes the desired position in the well, then the process of triggering the detector repeats .., ..,

In conclusion, the WITR notes the usefulness of the proposed device for use in drilling directional wells.

Subject invention

A device for orienting deflectors in boreholes and signaling, made in the form of a telescopic ss, built in between the diverter and the drill string, which closes when the specified Orientation is reached and is accompanied by immersion of the string, observed on the surface, the possibility of its repeated operation without being removed from the well, between the lower and upper links of the SSA, an eccentric cargo plumb is embedded in the form of Ssa is a hexagonal expansion coupling with a hole in the bottom end, and the coupling is rotated with a pin and a screw groove.

On page 2, in line 14, the spindle is printed on top, the nipple should be read.

Typo