Setting tools and liner hanger assembly

Details Setting tools and liner hanger assembly Setting tools and liner hanger assembly

1983-09-06

1985-05-14

Novosad, Stephen J.

Wells

Expansible anchor or casing

Fluid pressure actuated

166208, 166215, E21B 2304

Patent

active

RE0318817

ABSTRACT:
A liner hanger and setting tool for use in oil well completions employing a liner hanger having a one piece body member and spring biased slips and a setting tool having a hydraulically actuated slip release mechanism normally retaining the slips in a retracted position and operable upon application of fluid pressure for releasing such slips. The setting tool has a retrievable pack-off bushing disposed in the bore of the liner hanger and a threaded nut type of release for disconnecting the setting tool from the liner hanger. The setting tool requires pressure for setting and rotation for release.

REFERENCES:
patent: 2174076 (1939-09-01), Bowen
patent: 2877850 (1959-03-01), Burns
patent: 3152643 (1964-10-01), Burns
patent: 3171491 (1965-03-01), States
patent: 3420308 (1969-01-01), Putch
patent: 3608634 (1971-09-01), Cochran
patent: 3677341 (1972-07-01), Burns et al.
patent: 3920075 (1975-11-01), Braddick et al.
patent: 3934652 (1976-01-01), Cochran
patent: 4281711 (1981-08-01), Braddick et al.

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