| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: mechanism with hydraulic drive for continuous movement inside the well includes a piston; the first housing around the first head of the above piston; the first armature connected to the above first housing for its fastening at movement of the first head; the second housing around the second head of the above piston, the second armature connected to the above second housing for its fastening at movement of the second head; and assembly of hydraulic sequence, which connects the housings as to fluid medium so that influx of hydraulic pressure to power chamber of one housing moves the piston head in that piston and displaces fluid medium from return chamber of that housing to return chamber of the other housing for movement of the other housing relative to the piston. To each of the armatures there connected is control mechanism of their activation and deactivation, which activates rigidity of one armature with deactivation delay of rigidity of the other armature, thus deactivating the other armature only after complete rigidity of one armature is achieved.EFFECT: providing the possibility of supporting continuous movement inside the well and reliable fastening at movement of pulling equipment.11 cl, 8 dwg |
