Wells – Processes – Perforating – weakening – bending or separating pipe at an...
Patent
1996-04-17
1998-09-08
Bagnell, David J.
Wells
Processes
Perforating, weakening, bending or separating pipe at an...
1662426, 166378, 166 70, E21B 43119, E21B 17046
Patent
active
058031758
ABSTRACT:
A connector is presented for tubing conveyed perforating guns which facilitates connection or disconnection between guns without the need for rotation. A latching mechanism is disclosed which latches by setting down weight and unlatches by an actuating ram camming the latch out of a window. The connectors are configured so that they are sealed internally and have an external profile for interengagement with a seal ram for support and sealing around the outer periphery. Accordingly, a live well can be isolated using a seal ram around a fired gun because the internal passages through the gun are sealed off by virtue of seals around a hammer piston. The connectors are configured so that an upper gun creates the pressure required to set off the gun below. The connectors are also configured such that when a lower gun is supported by a seal ram, an emergency shear zone is presented opposite a shear ram to ensure that if an emergency well shutdown is required that the shear ram does not have to cut through a section of the gun which contains explosives.
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Green Robert R.
Myers, Jr. William Desmond
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