Apparatus for setting and locking packing assemblies in wellhead

Details Apparatus for setting and locking packing assemblies in wellhead Apparatus for setting and locking packing assemblies in wellhead

1974-10-21

1976-01-20

Novosad, Stephen J.

Wells

Packers or plugs

With detachable setting means

166 5, 166208, 285 18, E21B 2306, E21B 33035, E21B 33128

Patent

active

039332020

ABSTRACT:
Running apparatus is releasably connected to a packing assembly, the combination being lowered on a tubular running string until the packing assembly is disposed between a hanger body and a surrounding wellhead underlying a body of water. The apparatus is responsive to weight to effect setting of the packing in the annular space between the hanger body and wellhead. Test pressure is applied to the packing and more firmly sets it. The apparatus is rotated relative to the packing to shift a locking nut to lock the packing in place, the apparatus then being retrieved to the drilling rig at the water surface.

REFERENCES:
patent: 3382927 (1968-05-01), Davis, Jr.
patent: 3543847 (1970-12-01), Haeber
patent: 3827488 (1974-08-01), Piazza et al.

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