Setting tool

Details Setting tool Setting tool

1983-05-13

1984-04-10

Purser, Ernest R.

Wells

Processes

Placing or shifting well part

166237, 166124, E21B 2302

Patent

active

044415605

ABSTRACT:
A setting tool is shown of the type adapted to be made up in a pipe string for releasably engaging a setting sleeve in a well bore. The setting tool has a mandrel having an upper end adapted to be connected in the pipe string and having a lower end. A setting nut is carried on the mandrel having external connecting threads for engaging mating connecting threads located on the interior of a setting sleeve disposed about the lower end of the mandrel. The mandrel is slidably disposed within the setting nut when the setting nut is engaging the setting sleeve and the mandrel is slidable between an extended running-in position and a weight set-down position.
A latch collar having at least one latch ear is carried on the mandrel exterior. The setting sleeve has at least one end notch adapted to receive the latch ear for preventing relative rotational movement between the connecting threads of the setting nut and the setting sleeve when the mandrel is in the extended running-in position and allowing relative movement between the connecting threads when the mandrel is in the weigh-down position to release the connecting threads. Torque override is provided for releasing the latch mechanism upon the application of a predetermined rotational torque to the mandrel to thereby allow relative rotational movement between the connecting threads without the application of downward force to the mandrel. The mandrel is spring biased in the extended running-in position and connected by a shear mechanism to the setting sleeve to prevent inadvertent release of the tool during the running in operations.

REFERENCES:
patent: 3136367 (1964-06-01), Wright et al.
patent: 3171491 (1965-03-01), States
patent: 3207222 (1965-09-01), Tamplen
patent: 3391742 (1968-07-01), Davis
patent: 3608634 (1971-09-01), Cochran
patent: 3920075 (1975-11-01), Braddick et al.
patent: 3934652 (1976-01-01), Cochran
patent: 3991826 (1976-11-01), Baugh

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