Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Reexamination Certificate
2008-04-08
2008-04-08
Bruce, David V (Department: 4112)
Wells
Processes
Perforating, weakening, bending or separating pipe at an...
C166S055100, C166S242600, C166S242700, C166S377000
Reexamination Certificate
active
07353871
ABSTRACT:
A release tool adapted to be connected between a perforating gun and a tubing for releasing the perforating gun from the tubing after detonation of the perforating gun, the tool including a housing in connection with the tubing, the housing having an axial bore; an axially shiftable member in connection between the housing and a perforating gun; a seal member positioned in the axial bore of the housing, the axially shiftable member positioned through the seal member; a frangible member maintaining the axially shiftable member in connection between the housing and the perforating gun until the frangible member is shatter disconnecting the shiftable member; and a mechanism for equalizing the pressure across the seal member after the axially shiftable member is disconnected allowing the perforating gun to separate from the housing.
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Grigar Larry
Hromas Joe C.
Bruce David V
Deboer John M
Ehrlich Henry L.
Galloway Bryan P.
McGoff Kevin B.
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