Method and apparatus for rotating tubing conduits

Details Method and apparatus for rotating tubing conduits Method and apparatus for rotating tubing conduits

1979-05-07

1980-12-16

Pate, III, William F.

Wells

Means anchored against rotation in one conduit section for...

166242, 285 39, 285272, E21B 4300

Patent

active

042390834

ABSTRACT:
An apparatus which is carriable on a tubing string extendible within a subterranean well, wherein the tubing string has an upper tubing section which is extendible from and above the apparatus to the top of the well, and a lower tubing section which is extendible from and below the apparatus. The apparatus is manipulatable to rotate the lower tubing section without rotating the upper tubing section and comprises first and second housings, one of the housings and the lower tubing section being rotatable relative to the other of the housings. Actuator means are insertable within at least one of the housings for applying rotation to one of the housings. Co-engaging means are provided on the actuator means and one of the housings for applying rotational force to one of the housings and the lower tubing section to rotate the one housing and the lower tubing section without rotating the other of the housings and the upper tubing section.

REFERENCES:
patent: 3266571 (1966-08-01), John et al.
patent: 3322006 (1967-05-01), Brown
patent: 3851714 (1974-12-01), Visser

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