Stand jumping and stabbing guide device and method

Details Stand jumping and stabbing guide device and method Stand jumping and stabbing guide device and method

1985-03-11

1986-08-05

Jones, Jr., James L.

Metal working

Method of mechanical manufacture

Assembling or joining

81 5716, 81 5734, 81429, B21D 3903

Patent

active

046034641

ABSTRACT:
A well tool and method for making up and breaking out connections between sections of drill pipe. The tool will jump the upper pipe section out of the connection when the connection has been completely unthreaded, and will guide the upper pipe section during stabbing. A piston and cylinder assembly is mounted on the carriage for raising and lowering the pipe spinner relative to the carriage. The tool also has an actuator and a pilot valve for automatically opening the clamping cylinders of the spinner whenever the upper pipe section is raised by the pipe elevator.

REFERENCES:
patent: 2784626 (1957-03-01), Paget
patent: 2969702 (1961-01-01), Cornish et al.
patent: 3722603 (1973-03-01), Brown
patent: 4023449 (1977-05-01), Boyadjieff
patent: 4348920 (1982-09-01), Boyadjieff

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