| 摘要 |
FIELD: mining industry. SUBSTANCE: hoisting plant is designed for lowering and lifting of continuous pipes or rods from which submersible pumps, jet apparatuses and extension pieces are suspended, it is used for washing, underground repair and investigative operations in oil and gas wells and other holes with the use of continuous pipes. Hoisting plant for servicing of wells includes self-propelled platform carrying operator's cabin, drum with drive and layer of continuous pipe, extending frame mounted in guides attached to self-propelled platform, telescopic hoist with platform, feeding mechanism with guiding arc mounted on platform of telescopic hoist 8 and mechanism of axial guidance of feeding mechanism on to central axis of well head, unit of preventers and gripper for its registration. Gripper registering unit of preventers is mounted under platform of telescopic hoist with the aid of first joint coupling. Feeding mechanism is installed under platform of telescopic hoist with the use of second joint coupling. EFFECT: simplified erection and servicing of hoisting plant. 3 cl, 6 dwg |
