Well cementing inflation packer tools and methods

Details Well cementing inflation packer tools and methods Well cementing inflation packer tools and methods

1997-01-09

1998-04-14

Schoeppel, Roger J.

Wells

Processes

Cementing, plugging or consolidating

166291, 166187, 166194, 166154, 166184, E21B 3313

Patent

active

057381712

ABSTRACT:
The present invention provides an improved cementing inflation packer tool and methods of using the tool. The tool includes of a tubular housing having a packer inflating port disposed therein and a packer inflating port opening sleeve slidably disposed within the housing. The opening sleeve is movable between a closed position and an open position by a first cementing plug. An external packer sleeve having a pressurized fluid inflatable packer element attached thereto and a cementing port therein is sealingly disposed over the outer surface of the housing and the packer inflating port. The external packer sleeve provides a passageway from the packer inflating port to the inflatable packer element and check valve means are disposed in the passageway. A fluid rupturable member having a predetermined rupture pressure is sealingly attached over the cementing port.

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patent: 5348089 (1994-09-01), Brandell et al.
patent: 5400855 (1995-03-01), Stepp et al.

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