| 摘要 |
<p>A pick-up and iay-down apparatus that will pick up drill pipes, casings, collars and riser pipes from pipe racks of a variety of different off-shore drilling installations, such as a drill ship, semi-submersible drill rig, jack-up drill rig, platform drill rig, etc., and set (lay-down) the pipes on the drill floor for easy access is disclosed. The apparatus also operates to transfer the pipe from the drill floor to the pipe rack. The pick-up and lay-down apparatus may use either hydraulic or electric motors for the primary power source to drive it. Rack and pinion systems are employed to move the various components of the apparatus during pick-up and transfer of the pipe The system includes a moveable gantry (38, 92)two moveable pick-up and lay-down carriages (11,10); one or more moveable troughs (28); and, two or more lifting and rotating arms (14). The apparatus could also be truck mounted for onshore operations.</p> |
