Perforating gun pressure bleed device

Details Perforating gun pressure bleed device Perforating gun pressure bleed device

1989-02-13

1991-09-03

Walton, George L.

Fluid handling

Processes

Cleaning, repairing, or assembling

137318, 166 55, 166297, 222 83, E21B 43112

Patent

active

050443887

ABSTRACT:
Hydraulic cylinder apparatus, including a ram and attached piercing element is chained and secured around a perforating gun. A hydraulic cylinder is pressurized to thereby drive the piercing element through the sidewall of the perforating gun. The piercing element is tapered so that it is self-sealing during penetration of the gun sidewall. The piercing element is allowed to retract in a controlled manner so as to control the depressurization of the perforating gun.

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