Oil well tool with packing means

Details Oil well tool with packing means Oil well tool with packing means

1975-10-31

1977-08-09

Callaghan, Thomas F.

Pipe joints or couplings

Frangible element

285 18, 285315, F16L 3722, E21B 3312

Patent

active

040406490

ABSTRACT:
An oil well tool containing a well packer and which is particularly suitable for use in well bores located in extremely cold climates utilizes an hydraulically actuated packer which is actuable when the well head is flanged up and releasable thermal expansion means for compensation against thermal expansion and contraction in the tool string.

REFERENCES:
patent: 2565572 (1951-08-01), Pangborn
patent: 2962096 (1960-11-01), Knox
patent: 3163222 (1964-12-01), Foster et al.
patent: 3334923 (1967-08-01), Putch
patent: 3393926 (1968-07-01), Arnold
patent: 3459442 (1969-08-01), De Yarmett et al.
patent: 3477744 (1969-11-01), Brown
patent: 3488031 (1970-01-01), Bezner et al.
patent: 3497862 (1970-02-01), Geffner
patent: 3713675 (1973-01-01), White
patent: 3847413 (1974-11-01), Gurley et al.

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