Well packer with frangible closure

Details Well packer with frangible closure Well packer with frangible closure

1975-04-07

1976-09-14

Leppink, James A.

Wells

Packers or plugs

With expanding anchor

166224R, E21B 3312

Patent

active

039801349

ABSTRACT:
A device for converting a well packer to a bridge plug for closing off flow along a well bore to isolate adjacent portions of the well bore on opposite sides of the packer, including a tubular sub connectible on the lower end of a well packer and a frangible closure plate supported in sealed relationship in the sub across the bore of the packer for closing off flow through the packer. The frangible plate is installed in the packer at the surface prior to setting the packer in the well bore and thereafter is destroyed without removal of the packer from the well bore to establish communication through the packer. The plate is insulated against vibration, withstands high hydraulic loads from both sides while fragmenting responsive to very low mechanical loads, and expends in small pieces to give a full bore opening without obstruction.

REFERENCES:
patent: 2545504 (1951-03-01), Villafane
patent: 2565731 (1951-08-01), Johnston
patent: 2865454 (1958-12-01), Richards
patent: 3211228 (1965-10-01), Bramlett

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