Compliant cone for solid liner expansion

Details Compliant cone for solid liner expansion Compliant cone for solid liner expansion

2005-07-14

2008-10-14

Bagnell, David J. (Department: 3672)

Wells

Processes

Repairing object in well

C166S207000, C166S216000, C166S217000

Reexamination Certificate

active

07434622

ABSTRACT:
An expander tool includes segments capable of deflecting inward in response to a restriction encountered while expanding a tubular downhole. The expander tool includes an inner mandrel having a tapered surface about its outside diameter, the segments disposed around the inner mandrel with corresponding tapered surfaces in contact with the tapered surface of the inner mandrel and a compression sleeve disposed around the inner mandrel. A compressive load on the compression sleeve applies a preload force biasing the segments to a raised position on the tapered surface and hence an extended position. This preload enables expansion of the tubular with the segments in the extended position. Upon reaching the restriction, an increased pull force on the expander tool forces the segments down the tapered surface of the inner mandrel against the bias of the preload to a retracted position such that the expander tool assumes a smaller maximum outer diameter.

REFERENCES:
patent: 1981525 (1934-11-01), Price
patent: 2178999 (1939-11-01), Scott
patent: 3203451 (1965-08-01), Vincent
patent: 3785193 (1974-01-01), Kinley et al.
patent: 6012523 (2000-01-01), Campbell et al.
patent: 6457532 (2002-10-01), Simpson
patent: 6648075 (2003-11-01), Badrak et al.
patent: 6688397 (2004-02-01), McClurkin et al.
patent: 6722441 (2004-04-01), Lauritzen et al.
patent: 6763893 (2004-07-01), Braddick
patent: 7111680 (2006-09-01), Duggan
patent: 7117940 (2006-10-01), Campo
patent: 7121351 (2006-10-01), Luke et al.
patent: 2001/0020532 (2001-09-01), Baugh et al.
patent: 2003/0121655 (2003-07-01), Lauritzen et al.
patent: 2003/0155118 (2003-08-01), Sonnier
patent: 2004/0016544 (2004-01-01), Braddick
patent: 2004/0168796 (2004-09-01), Baugh et al.
patent: 2005/0194151 (2005-09-01), Dewey et al.
patent: 2006/0196679 (2006-09-01), Brisco et al.
patent: 2 401 127 (2004-11-01), None
patent: 2 413 577 (2005-11-01), None
patent: WO 02/594796 (2002-08-01), None
patent: WO 03/006790 (2003-01-01), None
patent: WO 03/016669 (2003-02-01), None
patent: WO 2004/079157 (2004-09-01), None
U.K: Search Report, GB 0613905.9, dated Nov. 10, 2006.
Canadian Office Action, Application No. 2,551,950, dated Aug. 14, 2007.

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