Running tool for use in well bores

Details Running tool for use in well bores Running tool for use in well bores

1990-02-06

1991-06-18

Novosad, Stephen J.

Wells

Processes

Placing or shifting well part

166 64, 166385, 294 8617, 294 8632, 294 8633, E21B 3118

Patent

active

050242776

ABSTRACT:
A running tool and method for the use thereof in locating apparatus in a well bore includes an elongated hollow tool body and outer sleeve encircling the body; a mandrel disposed within the body and sleeve and carrying a collet on the lower end thereof which, in the running position of the tool, is enclosed within the sleeve; and a sealed chamber having a substantially incompressible fluid therein which is metered through a flange located on a tool mandrel to control the time required to move the mandrel between the running and release positions, thus controlling the force and time required for actuation of the tool to avoid inadvertent release of the well apparatus being lowered into the well bore.

REFERENCES:
patent: 3950021 (1976-04-01), Goldschild et al.
patent: 4004835 (1977-01-01), Taylor
patent: 4061389 (1977-12-01), Keller et al.
patent: 4796706 (1989-01-01), Townsend et al.

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