Oil well tool with packing means

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

1975-10-31

1977-02-22

Leppink, James A.

Wells

Packers or plugs

With expanding anchor

166125, 166242, E21B 3312, E21B 1702

Patent

active

040087590

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 actuatable 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: 2401119 (1946-05-01), Taylor, Jr.
patent: 3002561 (1961-10-01), Baker et al.
patent: 3037797 (1962-06-01), Brown
patent: 3237695 (1966-03-01), Bostock et al.
patent: 3659647 (1972-05-01), Brown
patent: 3731740 (1973-05-01), Douglas

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