Tool for connecting and disconnecting well pipe

Details Tool for connecting and disconnecting well pipe Tool for connecting and disconnecting well pipe

Filed on

1976-04-19

Date issued

1977-05-17

Examiner

Jones, Jr., James L.

Patent Class

Tools

SubClass

Wrench, screwdriver, or driver therefor

SubSubClass

Machine

Other Related Categories

81 5734, 81 5735, B25B 1700

Type

Patent

Status

active

Patent number

040234495

Description

ABSTRACT:
A combination tool including a power slip, spinner unit and torque wrench, all mounted movably to a common support structure adjacent a well. The assembly is operable to first support the lower of two successive sections of pipe in the power slip, and then turn the upper section relative to the lower one to screw the pipes together or apart, with the major portion of the rotation being effected by the spinner, and the final high torque make-up rotation or initial joint breaking rotation being produced by the torque wrench.

REFERENCES:
patent: 2000221 (1935-05-01), Dawson
patent: 3086413 (1963-04-01), Mason
patent: 3799009 (1974-03-01), Guier

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