Apparatus and methods for achieving lock-out of a downhole tool

Details Apparatus and methods for achieving lock-out of a downhole tool Apparatus and methods for achieving lock-out of a downhole tool

1997-07-17

2000-05-09

Neuder, William

Wells

Processes

Operating valve, closure, or changeable restrictor in a well

166323, E21B 3410

Patent

active

060590416

ABSTRACT:
Apparatus and associated methods provide convenient and reliable deposition of a radially deflectable blocking member relative to a downhole tool. In a described embodiment of the apparatus, a lock-out tool has mechanisms which effect latching of the tool to an internal profile of a safety valve, displacement of an opening prong of the safety valve to open the safety valve, and deposition of an expandable ring to prevent closure of the safety valve. The ring is accurately positioned by the tool and is constructed in a manner which enables it to resist relatively large axial loads, but which also enable it to be significantly radially compressed.

REFERENCES:
patent: 654875 (1900-07-01), Cook
patent: 3786865 (1974-01-01), Tausch et al.
patent: 3786866 (1974-01-01), Tausch et al.
patent: 3882935 (1975-05-01), Calhoun
patent: 3948318 (1976-04-01), Page, Jr.
patent: 4344602 (1982-08-01), Arendt
patent: 4437522 (1984-03-01), Krause, Jr. et al.
patent: 4457368 (1984-07-01), Knierimen et al.
patent: 4569404 (1986-02-01), Milberger et al.
patent: 4574889 (1986-03-01), Pringle
patent: 4577694 (1986-03-01), Brakhage, Jr.
patent: 4624315 (1986-11-01), Dickson et al.
patent: 4967845 (1990-11-01), Shirk
patent: 5167284 (1992-12-01), Leismer
patent: 5249630 (1993-10-01), Meaders et al.
patent: 5348087 (1994-09-01), Williamson et al.
patent: 5492173 (1996-02-01), Kilgore et al.
patent: 5826657 (1998-10-01), Ringgenberg
Publication: Baker Subsurface Safety Systems Catalog, Front cover and p. 13, dated 1995.
Halliburton Wellstar.TM.TRSV Lock Open Tool, drawing CN03930, undated.
Halliburton 2.813 Lock-out Tool F/3-1/2 Wellstar TRSV, drawing 42 Lox 38101, dated Jan. 30, 1996.

Affiliated with

Also associated with

Rating

Apparatus and methods for achieving lock-out of a downhole tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and methods for achieving lock-out of a downhole tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and methods for achieving lock-out of a downhole tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1055550