Mudline suspension system

Details Mudline suspension system Mudline suspension system

1980-10-15

1982-10-26

Callaghan, Thomas F.

Pipe joints or couplings

Frangible element

166115, 166217, 285140, E21B 1910

Patent

active

043558259

ABSTRACT:
A mudline suspension system for supporting a hanger and casing attached thereto from a wellhead member having an internal recess with an upwardly facing internal shoulder therein including a split ring latching member having fingers normally extending upwardly and outwardly with downwardly facing shoulders on the exterior of the fingers adapted to engage the internal shoulder on the wellhead when the latch member is positioned in said recess, and releasable means for retaining the latch member supported on the hanger during running, the latch member when in engagement with said internal shoulder providing a landing surface for the hanger which supports the hanger and casing.

REFERENCES:
patent: 2339771 (1944-01-01), Davies
patent: 3179448 (1965-04-01), Jones
patent: 3893717 (1975-07-01), Nelson
patent: 3918747 (1975-11-01), Putch
patent: 4139059 (1979-02-01), Carmichael

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