Wells – Above ground apparatus – Suspension means
Patent
1998-02-09
2000-01-11
Dang, Hoang
Wells
Above ground apparatus
Suspension means
166208, 166217, E21B 3304
Patent
active
060125195
ABSTRACT:
A full bore tubing hanger system for supporting a tubing string in a wellhead includes a hanger body positioned on the wellhead and having a vertical opening therethrough defined by a plurality of spaced apart circumferential enlarged internal diameter support recesses, each support recess providing a lower circumferential radial ledge surface and an upper frusto-conically shaped surface. A tubular tubing hanger is removably positionable within the hanger body vertical opening and has threads at the lower end thereof by which tubing is attached to it. A segmented cage is positioned on the external surface of the tubing hanger and slidable between a lower and an upper position, in the lower position the segmented cage is retracted with respect to the external surface of the tubing hanger. The segmented cage has spaced apart external circumferential support surfaces that, when the tubing hanger is downwardly positioned, engage the hanger body support recesses so that the tubing hanger is supported by the cage. The segmented cage is inwardly radially retractable when upward force is applied to the tubing hanger so that the tubing hanger and cage may be removed from within the hanger body.
REFERENCES:
patent: 1326272 (1919-12-01), Kinzbach
patent: 2157964 (1939-05-01), Mueller
patent: 3255823 (1966-06-01), Barton
patent: 3420308 (1969-01-01), Putch
patent: 3741589 (1973-06-01), Herd et al.
patent: 4190270 (1980-02-01), Vanderford
patent: 4373752 (1983-02-01), Nelson
patent: 4541490 (1985-09-01), Bigbie et al.
patent: 4646827 (1987-03-01), Cobb
patent: 4923006 (1990-05-01), Hartmann et al.
patent: 4936382 (1990-06-01), Thomas
patent: 5026097 (1991-06-01), Reimert
patent: 5092400 (1992-03-01), Jagert
patent: 5467825 (1995-11-01), Vallet
patent: 5507349 (1996-04-01), Wray et al.
patent: 5515926 (1996-05-01), Boychuk
patent: 5522464 (1996-06-01), Piper
patent: 5544706 (1996-08-01), Reed
Allen Jack R.
Lang Heinrich H.
Dang Hoang
ERC Industries, Inc.
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