Double nut setting tool and linger hanger assembly

Details Double nut setting tool and linger hanger assembly Double nut setting tool and linger hanger assembly

1990-09-10

1991-09-17

Novosad, Stephen J.

Wells

Processes

Placing or shifting well part

166208, 166216, 166237, E21B 2300, E21B 3314

Patent

active

050486128

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 is locked to a liner hanger by an interconnection with a clutch housing. After hanging the liner hanger, 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 setting tool moves a lock nut to a position when the coupling nut locks the clutch housing to the setting tool so that the liner hanger can be rotated after it is hung in a well casing. The liner hanger and the clutch housing have interengageable clutch surfaces.

REFERENCES:
patent: 4033640 (1977-07-01), Garcia
patent: 4190300 (1980-02-01), Scalzi
patent: 4562889 (1986-01-01), Braddick
patent: 4598774 (1986-07-01), Bevels et al.
patent: 4688642 (1987-08-01), Baker
patent: 4712614 (1987-12-01), Allwin et al.
patent: 4942925 (1990-07-01), Themig

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