Tangentially-loaded high-load retrievable slip system

Details Tangentially-loaded high-load retrievable slip system Tangentially-loaded high-load retrievable slip system

2007-08-08

2009-11-10

Wright, Giovanna C (Department: 3672)

Wells

Expansible anchor or casing

With wedge or cam and friction drag

C166S217000, C166S382000

Reexamination Certificate

active

07614449

ABSTRACT:
A slip system includes a set of drive slips having wickers thereon, substantially all of which being truncated in cross-section; a set of gripping slips operatively interengagable with the set of drive slips; a drive slip end ring in operable communication with the set of drive slips; and a gripping slip end ring in operable communication with the set of gripping slips, the end rings capable of transmitting a load applied in an axial direction of the system to the set of gripping slips and the set of drive slips to tangentially load the set of drive slips and the set of gripping slips against each other thereby increasing a radial dimension of the system and distributing stresses created in a target tubular and method.

REFERENCES:
patent: 4311196 (1982-01-01), Beall et al.
patent: 4576230 (1986-03-01), Tapp et al.
patent: 6119774 (2000-09-01), Doane et al.
patent: 6213204 (2001-04-01), Doane
patent: 2004/0244966 (2004-12-01), Zimmerman et al.
patent: 2009/0014173 (2009-01-01), MacLeod et al.
Halliburton; “Production Packers”; July 2007; 6 pages.
International Search Report and Written Opinion Mailed Feb. 27, 2009, Written Opinion 7 pages, Ineternational Search Report 3 pages.

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