Wells – Packers or plugs – With expanding anchor
Patent
1979-10-05
1981-10-27
Novosad, Stephen J.
Wells
Packers or plugs
With expanding anchor
166196, 166139, 166140, 277235R, 277DIG6, E21B 33128, E21B 33129, F16J 1512, F16J 1514
Patent
active
042968062
ABSTRACT:
A well packer for use in geothermal wells or stem injection wells. The packer can be anchored to the inner wall of a casing string to resist differential pressure in either direction. The anchoring means includes a single set of slip elements which are hydraulically or mechanically set. The packer includes a sealing unit with packing elements especially adapted for high temperature wells. The packer can be simply released from the casing by upward tension on the tubing.
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The Condensed Chemical Dictionary, Eighth Edition, 1971, Van Nostrand Reinhold Company, N.Y., pp. 367, 395, 849 & 931.
Bostock James H.
Taylor Donald F.
Felger Thomas R.
Novosad Stephen J.
Otis Engineering Corporation
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