Wells – Packers or plugs – With expanding anchor
Patent
1985-04-10
1987-03-03
Novosad, Stephen J.
Wells
Packers or plugs
With expanding anchor
166135, 166140, 166182, 166192, E21B 33128
Patent
active
046468293
ABSTRACT:
A bridge plug apparatus includes a mandrel assembly having an operating fluid passageway disposed therein. A releasable coupling assembly has an upper end adapted to be connected to a tubing string and has a lower portion adapted to be releasably connected to the mandrel assembly. An annular packer is disposed about the mandrel assembly. A mechanical first slip assembly is connected to the mandrel assembly below the packer. A hydraulic second slip assembly is connected to the mandrel assembly above the packer. A power piston is disposed about the mandrel assembly for longitudinally compressing and radially expanding the packer to seal the packer in response to an increase in fluid pressure within the operating fluid passageway of the mandrel assembly. A hydraulically actuatable releasing device is provided for releasing a latched connection between the coupling assembly and the mandrel assembly. This releasing device is defined upon a power sleeve slidably disposed about the mandrel assembly. This power sleeve also has defined thereon a first valve portion for closing a bypass passage of the mandrel assembly and a second valve portion for trapping fluid under pressure within a portion of the operating fluid passageway of the mandrel assembly communicated with the hydraulic second slip assembly and the power piston.
REFERENCES:
patent: 1915771 (1933-06-01), Wickersham et al.
patent: 2239150 (1941-04-01), Halliburton
patent: 2352700 (1944-07-01), Ferris
patent: 2715444 (1955-08-01), Fewel
patent: 2799346 (1957-07-01), Baker et al.
patent: 2806532 (1957-09-01), Baker et al.
patent: 2925865 (1960-02-01), Oliver
patent: 2946388 (1960-07-01), Evans
patent: 3054452 (1962-09-01), Evans
patent: 3100533 (1963-08-01), Fredd
patent: 3122205 (1962-09-01), Brown et al.
patent: 3136364 (1964-06-01), Myers
patent: 3189096 (1965-06-01), Phenix
patent: 3215204 (1965-11-01), Sims
patent: 3714983 (1973-02-01), Wilson
patent: 4149594 (1979-04-01), Evans
patent: 4289202 (1981-09-01), Henderson
patent: 4437516 (1984-03-01), Cockrell
patent: 4516634 (1985-05-01), Pitts
patent: 4545431 (1985-10-01), Fore
Halliburton Services Sales and Service Catalog No. 41, p. 4014.
Barrington Burchus Q.
Evans Robert T.
Hackney Bernard L.
Beavers L. Wayne
Duzan James R.
Halliburton Company
Neuder William P.
Novosad Stephen J.
LandOfFree
Hydraulically set and released bridge plug does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulically set and released bridge plug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulically set and released bridge plug will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1011876