Packer

Details Packer Packer

1997-04-30

1999-05-18

Tsay, Frank

Wells

Packers or plugs

With expanding anchor

166195, E21B33/12

Patent

active

059042079

ABSTRACT:
An improved packer (plug/bridge plug) for us in the exploitation of subterranean oil and/or gas reserves comprises a mechanism (50,52) for anchoring the packer (5) within an oil/gas well, a mechanism (55,56,60,65) for setting the anchoring means (50,52), a sealing element (180), and a mechanism for setting the sealing element, wherein the mechanism (60,65,155) for setting the anchoring means (50,52) comprises a biasing mechanism (60,65), and means (155) for releasably retaining the biasing mechanism (60, 65) in an energized state, wherein, in use, when the releasable retaining mechanism (55, 56) are released the biasing mechanism (60,65) act on the anchoring means (50,52) so as to cause the anchoring mechanism (50,52) to move into a deployed position.

REFERENCES:
patent: 4307781 (1981-12-01), Preston, Jr. et al.
patent: 5224540 (1993-07-01), Streich et al.
patent: 5558153 (1996-09-01), Holcombe et al.
patent: 5701954 (1997-12-01), Kilgore et al.

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