Well casing hanger assembly

Details Well casing hanger assembly Well casing hanger assembly

1977-12-12

1979-02-13

Purser, Ernest R.

Wells

Expansible anchor or casing

Liner hanger

285 4, E21B 4310

Patent

active

041390598

ABSTRACT:
A well casing hanger for suspending an inner string of well casing at a predetermined location in an outer casing string, including a pair of semi-circular segments each having a plurality of outwardly biased latching fingers extending upwardly from an externally threaded semi-circular support base. An internally threaded connecting ring is threaded onto external screw threads on the casing string and onto the semi-circular support bases which are positioned around the hanger body to secure the segments on the string until the inner casing string is positioned accurately. The weight of the inner casing string shears the connecting ring to permit the latching fingers to be releasably locked in an outwardly urged latched position.

REFERENCES:
patent: 3097697 (1963-07-01), States
patent: 3335802 (1967-08-01), Seyffert
patent: 3420308 (1969-01-01), Putch
patent: 3893717 (1975-07-01), Nelson et al.
patent: 3918747 (1975-11-01), Putch et al.

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