HOISTING PLANT Russian patent published in 1995 - IPC

FIELD: production of oil and gas. SUBSTANCE: mounted on self-propelled platform are operator's cab, drum with drive and cable layer, and extensible frame installed in guides secured to self-propelled platform. Extensible frame carriers telescopic hoist with platform on which feed mechanism with guide arc is arranged. Mechanism for axial direction of feed mechanism to central axis of wellhead is mounted on extensible frame and kinematically connected with feed mechanism. Located under platform of telescopic hoist coaxially to feed mechanism is preventor with clamps for locking it on wellhead. Feed mechanism is made in form of two endless chains with holding-down members mounted on posts, one of which is movable. Feed mechanism is installed with the help of telescopic hoist coaxially with wellhead, and preventor is fixed to wellhead. Continuous pipe is passed through feed mechanism and directed into well. EFFECT: higher efficiency. 2 cl, 6 dwg