Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate
2006-01-31
2006-01-31
Walker, Zakiya (Department: 3676)
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
C166S323000, C166S332400, C166S332800, C166S386000
Reexamination Certificate
active
06991040
ABSTRACT:
A lockout tool dimensioned to be received within a housing of a subsurface safety valve (SSV). The lockout tool generally comprises an elongated housing, and an expander mandrel slidably received within the housing. Together, the elongated housing and expander mandrel are run into the wellbore and landed into the housing of the SSV such that the end of the expander mandrel opens the flapper valve. A portion of the lookout tool housing shoulders against the flow tube in the SSV to drive the flow tube downward, thereby maintaining the flapper of the SSV in its open position. As the expander mandrel moves downward through the hard scat of the SSV, the mandrel engages the flow tube and expands it against the hard seat. In this manner, the flow tube is expanded into permanent, frictional engagement with the hard seat. This, in turn, looks the flapper member of the SSV in its open position.
REFERENCES:
patent: 1358818 (1920-11-01), Bering
patent: 2280769 (1942-04-01), Page
patent: 3059708 (1962-10-01), Cannon et al.
patent: 3145790 (1964-08-01), Bridwell et al.
patent: 3195636 (1965-07-01), Cordary et al.
patent: 3331439 (1967-07-01), Sanford
patent: 3696868 (1972-10-01), Taylor, Jr.
patent: 3786865 (1974-01-01), Tausch et al.
patent: 3786866 (1974-01-01), Tausch et al.
patent: 3799258 (1974-03-01), Tausch
patent: 3859877 (1975-01-01), Sherer et al.
patent: 3911707 (1975-10-01), Minakov et al.
patent: 4125013 (1978-11-01), Nicolas et al.
patent: 4550781 (1985-11-01), Kagler, Jr.
patent: 4574889 (1986-03-01), Pringle
patent: 4577694 (1986-03-01), Brakhage, Jr.
patent: 4624315 (1986-11-01), Dickson et al.
patent: 4842082 (1989-06-01), Springer
patent: 4944351 (1990-07-01), Eriksen et al.
patent: 4981177 (1991-01-01), Carmody et al.
patent: 5129322 (1992-07-01), Christopher et al.
patent: 5201817 (1993-04-01), Hailey
patent: 5249630 (1993-10-01), Meaders et al.
patent: 5253714 (1993-10-01), Davis et al.
patent: 5496044 (1996-03-01), Beall et al.
patent: 5598864 (1997-02-01), Johnston et al.
patent: 5799949 (1998-09-01), Beall et al.
patent: 6059041 (2000-05-01), Scott
patent: 6352118 (2002-03-01), Dickson et al.
patent: 2002/0150436 (2002-10-01), Mason et al.
patent: 0266864 (1988-05-01), None
patent: 0266864 (1989-05-01), None
patent: 0 892 148 (1999-01-01), None
patent: 0266864 (2000-07-01), None
patent: 1241321 (2002-09-01), None
patent: 1241321 (2003-01-01), None
patent: 2172320 (1986-09-01), None
patent: WO 02/31315 (2002-04-01), None
PCT Search Report, International Application No. PCT/GB 03/02960, dated Oct. 1, 2003.
U.K. Office Action, Application No. GB0502847.7, dated May 20, 2005.
Deaton Thomas Michael
Hill, Jr. Thomas G.
Hodge Rory L.
Simpson Neil A. A.
Patterson & Sheridan LLP
Walker Zakiya
Weatherford / Lamb, Inc.
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