Casing slips and seal member

Details Casing slips and seal member Casing slips and seal member

1991-07-26

1992-08-04

Trettel, Michael F.

Pipe joints or couplings

Serial,relatively movable portions

285146, 285148, 285341, E21B 1910

Patent

active

051352664

ABSTRACT:
A method and an apparatus for attaching an upper wellhead housing to casing employs a combination slip and seal assembly. An annular metal slip member is supported by a lower wellhead housing. The slip member has a conical section with an annular external seal. The interior of the slip member contains circumferential teeth. When the upper wellhead housing is placed over the slip member and clamped to the lower wellhead housing, it wedges the slip member radially inward. The internal teeth will embed against the casing to grip the casing. The external seal seals against the upper wellhead housing bore conical surface. A retaining ring engages the slip member and locates between mating shoulders of the upper and lower housings to limit downward travel of the slip member.

REFERENCES:
patent: 1604580 (1926-10-01), Jaques
patent: 1654463 (1927-12-01), Jaques
patent: 1855350 (1932-04-01), Humason
patent: 1875749 (1932-09-01), McEvoy et al.
patent: 1973809 (1934-09-01), Heggem
patent: 2137853 (1938-11-01), Nixon
patent: 2493556 (1950-01-01), Stone
patent: 2507261 (1950-05-01), Mercier
patent: 2624413 (1953-01-01), Mueller et al.
patent: 2775471 (1956-12-01), Douglass
patent: 2824757 (1958-02-01), Rhodes
patent: 2850301 (1958-09-01), Allen
patent: 3051513 (1962-08-01), Watts et al.
patent: 3092405 (1963-06-01), Wurzburger
patent: 3127198 (1964-03-01), Orund
patent: 3233926 (1966-02-01), Walterscheid-Muller
patent: 3248132 (1966-04-01), Pierce, Jr.
patent: 4323727 (1982-04-01), Berg
patent: 4330143 (1982-05-01), Reneau

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