Device for handling down-hole pipes

Details Device for handling down-hole pipes Device for handling down-hole pipes

E - Fixed Constructions

21

B

E21B 19/00 (2006.01) E21B 19/15 (2006.01)

Patent

CA 2060123

ABSTRACT OF THE DISCLOSURE Machinery on a drill rig displaces a down-hole pipe from a horizontal orientation proximate to a drill floor to a suspended vertical orientation immediately above the drill floor. The machinery includes a guide and a wheeled carriage that travels along the track. The carriage has a swivel that pivots about a vertical axis. A pipe clamping mechanism is connected to theswivel with a pivot joint for pivoting about a generally horizontal axis. An elevator displaces the carriage downwardly to locate the clamping mechanism about one end of a pipe. The elevator then raises the pipe end until the pipe issuspended above the drill floor. A hydraulic cylinder acting between the swivel and the clamping mechanism then pivots the clamping mechanism about the horizontal axis until the pipe is in a vertical orientation. Another pair of hydraulic cylinders pivots the swivel about its vertical pivot axis to locate the suspended pipe above either an opening in the rotary table or a vertical storagehole. - 16-

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