Packing means for a wellhead assembly

Details Packing means for a wellhead assembly Packing means for a wellhead assembly

1975-08-01

1976-08-24

Leppink, James A.

Wells

Above ground apparatus

With seal for reciprocating member

166 89, 166173, 285187, 285302, F16L 1502, F16L 5500, E21B 3303

Patent

active

039761304

ABSTRACT:
A packing for a wellhead assembly to seal between a casing and a bore within the wellhead as the casing moves longitudinally in the wellhead in response to thermal conditions. The packing is mounted on the exterior free upper end portion of the casing inside the wellhead bore.

REFERENCES:
patent: 1598794 (1926-09-01), Warren
patent: 2323179 (1943-06-01), Hall et al.
patent: 3433506 (1969-03-01), Crowe
patent: 3504936 (1970-04-01), Brown et al.

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