Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate
2011-08-23
2011-08-23
Gay, Jennifer H (Department: 3676)
Wells
Processes
With indicating, testing, measuring or locating
C166S098000, C166S301000, C166S387000, C294S086120, C294S086150
Reexamination Certificate
active
08002032
ABSTRACT:
A hydraulic overshot apparatus designed to slide over plain end tubing and set by applying hydraulic fluid, under pressure, via a hydraulic setting port, into a center chamber which allows pressure to direct to two different piston areas. The setting piston compresses packer elements and tubing slips against the outer diameter (O.D.) of the tubing. The test piston compresses tubing test elements against the inner diameter (I.D.) of the tubing. The setting pressure is ported through the upper setting and test portion to allow pressure to move from the center chamber to the lower outer portion. The lower outer portion includes a body lock ring and a setting piston for setting the packer elements. Setting pressure moves the setting piston down through the body lock ring. As the setting piston moves down, it ratchets down through the body lock ring. The teeth on both the setting piston and body lock ring will prevent the backward movement (or upward movement) of the setting piston as it moves through the body lock ring.
REFERENCES:
patent: 2394759 (1946-02-01), Edwards
patent: 2577994 (1951-12-01), Bendeler et al.
patent: 3378080 (1968-04-01), Fredd
patent: 3478577 (1969-11-01), Hauk
patent: 3500909 (1970-03-01), Beyer
patent: 5197547 (1993-03-01), Morgan
patent: 5413171 (1995-05-01), Womack
patent: 5474124 (1995-12-01), Samuels et al.
patent: 5580114 (1996-12-01), Palmer
patent: 5765638 (1998-06-01), Taylor
patent: 6056049 (2000-05-01), Davis
patent: 6059336 (2000-05-01), Meronek
patent: 7083209 (2006-08-01), Leman et al.
patent: 7617867 (2009-11-01), Lynde et al.
patent: 7631699 (2009-12-01), Cisneros
patent: 2008/0029275 (2008-02-01), Cisneros
patent: 2008/0217014 (2008-09-01), Lynde et al.
patent: 2009/0178810 (2009-07-01), Cenac et al.
Cenac Martin
Wong Fredrick
Blowout Tools, Inc.
D'Souza Vanessa M.
Garvey, Smith Nehrbass & North, L.L.C.
Gay Jennifer H
Smith Gregory C.
LandOfFree
Hydraulic overshot with removable setting and testing core does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic overshot with removable setting and testing core, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic overshot with removable setting and testing core will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2732122