Apparatus for treating well bores

Details Apparatus for treating well bores Apparatus for treating well bores

1987-11-20

1989-08-15

Dang, Hoang C.

Wells

Packers or plugs

With expanding anchor

166128, 166131, 166184, 166191, E21B 33124, E21B 4312

Patent

active

048565830

ABSTRACT:
Treating apparatus arranged to be positioned in well bores that includes a packer that is retrievable and resettable and that provides a spaced pair of sealing elements to isolate a zone in the well bore. A valve operable within the packer is moveable among positions wherein fluid can be circulated through the operations, an open position wherein the treating fluids can be injected into the zone to be treated, and a closed position wherein the selected zone can be sealed off.

REFERENCES:
patent: 2715444 (1955-08-01), Fewel
patent: 3169579 (1965-02-01), Haines
patent: 4569396 (1986-02-01), Brisco
patent: 4590995 (1986-05-01), Evans
patent: 4605062 (1986-08-01), Klumpyan et al.
patent: 4640351 (1987-02-01), Clifton et al.
patent: 4671352 (1987-06-01), Magee, Jr. et al.
patent: 4722400 (1988-02-01), Burns

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