Releasable running tool for setting well tool

Details Releasable running tool for setting well tool Releasable running tool for setting well tool

1993-08-02

1995-04-11

Britts, Ramon S.

Wells

Processes

Placing or shifting well part

166383, 166386, 166122, 166237, E21B 2300

Patent

active

054049555

ABSTRACT:
A well tool assembly and a method of operating same including a clutch which provides a rotary-driving connection between a running tool and well tool mandrel when the running tool is rotated in a first direction (e.g. clockwise) and has cammed surfaces which ride up on complementary cammed surfaces on the mandrel to disengage the clutch when the running tool is rotated in a second (e.g. counterclockwise) or opposite direction. Once the clutch is disengaged, the running tool can be disconnected from the mandrel by rotating the running tool in said first direction. The clutch can be disengaged either hydraulically at the same time a well tool (e.g. a packer) is being hydraulically set or by rotation of the running tool in the second direction in the event the well tool assembly becomes stuck before the assembly reaches its destination.

REFERENCES:
patent: 4078606 (1978-03-01), Montgomery
patent: 4270620 (1981-06-01), Lawrence
patent: 4562889 (1986-01-01), Braddick
patent: 4942924 (1990-07-01), Duncan
patent: 4942925 (1990-07-01), Themig
patent: 5018583 (1991-05-01), Baker
patent: 5224547 (1993-07-01), Burns, Sr. et al.

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