Finger nut setting tool and liner hanger assembly

Details Finger nut setting tool and liner hanger assembly Finger nut setting tool and liner hanger assembly

1990-09-10

1991-12-24

Novosad, Stephen J.

Wells

Processes

Placing or shifting well part

166208, 166217, E21B 2300, E21B 4310

Patent

active

050743627

ABSTRACT:
A setting tool for a liner hanger in an oil well completion system wherein the setting tool mechanism incorporates structure for manipulating a liner prior to and subsequent to hanging the liner hanger in a well casing. Prior to setting the liner hanger the setting tool release nut is locked to a liner hanger by a releasable lug interconnection. After hanging the liner hanger, the lug interconnection is released and rotation of the setting tool mandrel uncouples the coupling nut from the liner hanger to release the setting tool from the liner hanger and further rotation of the coupling nut locks the coupling nut to the clutch housing so that the liner can be rotated after it is hung in a well casing.

REFERENCES:
patent: 3136367 (1964-06-01), Wright et al.
patent: 3158201 (1964-11-01), Springer
patent: 4598774 (1986-07-01), Nevels et al.
patent: 4834185 (1989-05-01), Braddick
patent: 4993493 (1991-02-01), Arnold

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