Wells – Valves – closures or changeable restrictors – Fluid operated
Reexamination Certificate
2011-07-19
2011-07-19
Bomar, Shane (Department: 3672)
Wells
Valves, closures or changeable restrictors
Fluid operated
C166S373000
Reexamination Certificate
active
07980313
ABSTRACT:
An improved method and apparatus for catching and holding a ball, plug or dart during oil and gas well operations (e.g., cementing operations) employs a specially configured tool body that accepts a ball or a plug or a dart that flows downwardly into the tool body but disallows escape or discharge of the ball, plug or dart upwardly. The tool body has first and second flow channels or passages, one being generally axially aligned with the tool body. The other flow channel or passage is a second channel or passage that enables fluid flow around a cavity that contains one or more captive plugs (or ball or dart(s)).
REFERENCES:
patent: 2924237 (1960-02-01), Ellis
patent: 3713490 (1973-01-01), Watson
patent: 3828852 (1974-08-01), Delano
patent: 4427065 (1984-01-01), Watson
patent: 4624312 (1986-11-01), McMullin
patent: 4671353 (1987-06-01), Daming
patent: 4722389 (1988-02-01), Arnold
patent: 4782894 (1988-11-01), LaFleur
patent: 4854383 (1989-08-01), Arnold et al.
patent: 4995457 (1991-02-01), Baldridge
patent: 5095988 (1992-03-01), Bode
patent: 5236035 (1993-08-01), Brisco et al.
patent: 5293933 (1994-03-01), Brisco
patent: 5435390 (1995-07-01), Baugh et al.
patent: 5758726 (1998-06-01), Streich et al.
patent: 5833002 (1998-11-01), Holcombe
patent: 5856790 (1999-01-01), Baugh et al.
patent: 5960881 (1999-10-01), Allamon et al.
patent: 6142226 (2000-11-01), Vick
patent: 6182752 (2001-02-01), Smith, Jr. et al.
patent: 6390200 (2002-05-01), Allamon et al.
patent: 6575238 (2003-06-01), Yokley
patent: 6672384 (2004-01-01), Pedersen et al.
patent: 6904970 (2005-06-01), Simson
patent: 7032668 (2006-04-01), Mondelli et al.
patent: 7066249 (2006-06-01), Simson
patent: 2008/0149336 (2008-06-01), Szarka et al.
Bomar Shane
D'Souza Vanessa M.
Garvey, Jr. Charles C.
Garvey, Smith Nehrbass & North, L.L.C.
Gulfstream Services, Inc.
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