FIELD: seismic well examination technology.
SUBSTANCE: device has pressing lever with short and long shoulders, also has watertight body with electromechanical drive, driving screw, force rod connected to lever, sleeve consisting of two half-couplings and spring, nut with outer and inner thread having drive of outer thread greater than those of inner thread, and with inner thread connected to driving screw, and with outer thread connected to rod, placed on said body. Electromechanical drive, sleeve, nut, driving screw and portion of rod are placed under pressing lever, while axis of rotation connecting lever and device body is placed at end of short shoulder of lever, and a groove in rod and apertures in short shoulder of lever, in which an element for interaction of rod and the lever is placed, are made at the beginning of short shoulder of the lever.
EFFECT: reliable contact of device with well wall.
3 dwg
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