Deformable member

Details Deformable member Deformable member

2005-05-24

2005-05-24

Tsay, Frank (Department: 3672)

Wells

Above ground apparatus

Releasable seal or cleaner disengaged by projection on inner...

C166S118000, C166S387000

Reexamination Certificate

active

06896049

ABSTRACT:
A deformable member can be used in a well tool for use in downhole oil/gas wells. In one embodiment, a deformable member (46) is described which is deformable between undeformed and deformed positions, and comprises a generally hollow cylindrical body (48) defining a wall (50). The wall (50) includes three circumferential lines of weakness in the form of grooves, with two grooves (52, 54) provided in an outer surface (56) of the member wall (50), and the other groove (58) provided in an inner surface (60). The member (46) is deformed outwardly by folding about the lines of weakness (52, 54, 56) and is used in particular to obtain sealing contact with a tube in which the member (46) is located.

REFERENCES:
patent: 2683928 (1954-07-01), Carson
patent: 4482086 (1984-11-01), Wagner et al.
patent: 5211226 (1993-05-01), Hendrickson et al.
patent: 5988276 (1999-11-01), Oneal
patent: 6032958 (2000-03-01), Fowler
patent: 6425444 (2002-07-01), Metcalfe et al.
patent: 6431282 (2002-08-01), Bosma et al.
patent: 6530574 (2003-03-01), Bailey et al.
patent: 87026 (1985-01-01), None
patent: 0 029 380 (1981-05-01), None
International Search Report dated Oct. 12, 2001.
International Preliminary Examination Report dated Jul. 1, 2002.

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