Compressible darts and methods for using these darts in...

Details Compressible darts and methods for using these darts in... Compressible darts and methods for using these darts in...

2005-12-13

2005-12-13

Neuder, William (Department: 3672)

Wells

Pistons, fluid driven into well

C166S156000

Reexamination Certificate

active

06973966

ABSTRACT:
The present invention relates generally to subterranean well construction, and more particularly, to improved darts and methods of using these darts in subterranean wells. In one embodiment, the present invention provides a dart for activating a plug located within a subterranean well bore, the dart comprising a mandrel, and a foam body attached to the mandrel. Optionally, an elastic tether can be included, inter alia, to absorb the deformation of the foam body.

REFERENCES:
patent: 4345402 (1982-08-01), Hanson et al.
patent: 4378838 (1983-04-01), Ogden et al.
patent: 4545434 (1985-10-01), Higgins
patent: 5036922 (1991-08-01), Braddick
patent: 5311940 (1994-05-01), LaFleur
patent: 5433270 (1995-07-01), LaFleur
patent: 5435386 (1995-07-01), LaFleur
patent: 5829523 (1998-11-01), North
patent: 5928049 (1999-07-01), Hudson
patent: 5979557 (1999-11-01), Card et al.
patent: 6725917 (2004-04-01), Metcalfe
patent: 6880636 (2005-04-01), Rogers et al.
patent: 1 126 131 (1991-08-01), None
Brochure entitled “Landing Nipples and Lock Mandrels,” from Otis Engineering Corp., General Sales Catalog.
Halliburton Casing Sales Manual, Section 4.14, “SSR Plug Releasing Darts”.
Foreign communication from a related counterpart application dated Feb. 2, 2005.

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