EZ disposal packer

Details EZ disposal packer EZ disposal packer

1977-12-12

1979-05-01

Novosad, Stephen J.

Wells

Packers or plugs

With expanding anchor

166133, 166134, 166325, E21B 33129

Patent

active

041518756

ABSTRACT:
Packer for use in the disposal of abrasive fluids and well debris from a well drilling operation comprising: a packer mandrel; an upper slip support slidable on the packer mandrel; an upper slip wedge installed on the packer mandrel; a first plurality of slips; an elastomeric packer assembly installed on the packer mandrel; a lower slip wedge installed on the packer mandrel; a lower slip support; a second plurality of slips; a valve cage having a valve stem guide retained within the bore of the lower slip support; and a valve means having a stem slidable within the valve stem guide of the valve cage, the valve means being operable between a first position preventing and a second position allowing the flow of abrasive fluid and well debris through the bore of the lower slip support.

REFERENCES:
patent: 2117535 (1938-05-01), Baker et al.
patent: 2578900 (1951-12-01), Ragan
patent: 2589506 (1952-03-01), Morrisett
patent: 3163225 (1964-12-01), Perkins
patent: 3385370 (1968-05-01), Knox et al.
patent: 3698411 (1972-10-01), Garrett
patent: 3967679 (1976-07-01), Liljestrand

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