| 摘要 |
equipment for drilling of geological exploration wells; applicable in orientation of technical means of directed drilling and production of signals on completion of process of their orientation in well. SUBSTANCE: indicating orientator has body with two oppositely directed screw surfaces and supporting bead. Body accommodates movable shaft with axial channel, radial and connector detachably connected with deflecting tool, pressing-down and movable bushings and ball located between them. Movable bushing is mounted on shaft in region of location of connector and radial holes and spring-loaded relative to shaft towards pressing-down bushing. Movable bushing has bore for hydraulic communication of cavities above and under connector. Movable bushing upper end has recesses for receiving a ball, and thrust boss whose height is less than ball diameter and exceeds difference between ball diameter and depth of recess receiving a ball. EFFECT: higher operating reliability. 5 dwg |
