Deep set safety valve

Details Deep set safety valve Deep set safety valve

2006-01-24

2006-01-24

Bagnell, David (Department: 3672)

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

C166S386000, C166S066500, C166S066700, C166S332800

Reexamination Certificate

active

06988556

ABSTRACT:
Apparatus and methods are provided for actuation of downhole tools. In one example, a deep set safety valve uses a magnetic coupling which permits a portion of the safety valve at control line pressure to be isolated from tubing string internal pressure, without requiring the use of a dynamic seal therebetween. A piston of the safety valve may be displaced in response to a differential between control line pressure and pressure in an annulus surrounding the tubing string, pressure in another control line, or pressure in the tubing string. Other types of well tools may benefit from actuation using principles of the invention.

REFERENCES:
patent: 3196948 (1965-07-01), Dye
patent: 3666030 (1972-05-01), Bohn et al.
patent: 3731742 (1973-05-01), Sizer et al.
patent: 4058166 (1977-11-01), Crickmer
patent: RE30110 (1979-10-01), Huebsch et al.
patent: 4191248 (1980-03-01), Huebsch et al.
patent: 4407329 (1983-10-01), Huebsch et al.
patent: 4467870 (1984-08-01), Langham
patent: 4579177 (1986-04-01), Going, III
patent: 4619323 (1986-10-01), Gidley
patent: 4649993 (1987-03-01), Going, III
patent: 4667736 (1987-05-01), Rumbaugh et al.
patent: 4725783 (1988-02-01), Miyairi et al.
patent: 4732225 (1988-03-01), Jurgens et al.
patent: 4796708 (1989-01-01), Lembcke
patent: 4798247 (1989-01-01), Deaton et al.
patent: 4886114 (1989-12-01), Perkins et al.
patent: 4940207 (1990-07-01), Katsuyama
patent: 4981173 (1991-01-01), Perkins et al.
patent: 5070595 (1991-12-01), Perkins et al.
patent: 5070944 (1991-12-01), Hopper
patent: 5257663 (1993-11-01), Pringle et al.
patent: 5291947 (1994-03-01), Stracke
patent: 5293551 (1994-03-01), Perkins et al.
patent: 5299640 (1994-04-01), Streich et al.
patent: 5310012 (1994-05-01), Cendre et al.
patent: 5409031 (1995-04-01), McGill et al.
patent: 5558153 (1996-09-01), Holcombe et al.
patent: 5620048 (1997-04-01), Beauquin
patent: 5734209 (1998-03-01), Hallidy
patent: 5913337 (1999-06-01), Williams et al.
patent: 5917774 (1999-06-01), Walkow et al.
patent: 6016845 (2000-01-01), Quigley et al.
patent: 6041857 (2000-03-01), Carmody et al.
patent: 6112809 (2000-09-01), Angle
patent: 6237693 (2001-05-01), Deaton
patent: 6253843 (2001-07-01), Rawson et al.
patent: 6302210 (2001-10-01), Crow et al.
patent: 6321845 (2001-11-01), Deaton
patent: 6352118 (2002-03-01), Dickson et al.
patent: 6361299 (2002-03-01), Quigley et al.
patent: 6433991 (2002-08-01), Deaton et al.
patent: 6478090 (2002-11-01), Deaton
patent: 6491106 (2002-12-01), Simonds
patent: 6568470 (2003-05-01), Goodson et al.
patent: 6619388 (2003-09-01), Dietz et al.
patent: 6626244 (2003-09-01), Powers
patent: 2002/0023759 (2002-02-01), Deaton
patent: 2002/0108747 (2002-08-01), Dietz et al.
patent: 2002/0112861 (2002-08-01), Restarick et al.
patent: 2003/0019622 (2003-01-01), Goodson et al.
patent: 2003/0132003 (2003-07-01), Arauz et al.
patent: 0436214 (1996-02-01), None
patent: 0997676 (1999-10-01), None
patent: 2186667 (1987-08-01), None
patent: 2200775 (1988-08-01), None
patent: 2241302 (1991-08-01), None
patent: 2362407 (2001-11-01), None
patent: 2379562 (2003-03-01), None
patent: 2390750 (2004-01-01), None
patent: 110093883 (1995-04-01), None
patent: WO 00/53890 (2000-09-01), None
Search Report for GB 0303480.8.
U.S. Appl. No. 09/784,723, filed Feb. 15, 2001.
Festo Pneumatic Products Catalog, 2nd Edition, p. 1.292, “Double-Acting Rodless Cylinder Type DGO-. . . -PPV-A”, dated 1986.
Permanent Magnet Design and Application Handbook, 2nd Edition, p. 9 & 21, dated 1995.
Halliburton Completion Products Catalog, pp. 4-6 & 4-7. dated 1996.
Office Action for Ser. No. 10/990,748 dated Apr. 15, 2005.
Examination report for GB0303480.8.
Search Report for GB 0303480.8.

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