Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Patent
1996-05-21
1998-01-27
Bagnell, David J.
Wells
Packers or plugs
Expanded by confined fluid from central chamber, pump or...
1663324, E21B 2306, E21B 31127
Patent
active
057113726
ABSTRACT:
An inflatable packer 10 includes a sliding collar 86 which opens and closes port 94 to control pressurization of the inflatable packer element 120 with a cementatious fluid. The collar 86 is axially moveable by a setting tool 20 suspended in the well from a work string WS. An annular passageway 76 in the packer body extends from the inlet port 94 to the packer element 120 to provide for reliable inflation with the cementatious fluid. The collar 86 provides metal-to-metal sealing engagement with the radially inner sleeve 76 of the packer body to reliably seal the inflation chamber from the well fluids when the collar 86 is moved closed.
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Bagnell David J.
TAM International
LandOfFree
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