Perforating gun using an electrical safe arm device and a capacitor exploding foil initiator device
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United States of America Patent
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Jul 25, 1995
Issued Date -
N/A
app pub date -
Feb 7, 1994
filing date -
Sep 29, 1993
priority date (Note) -
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Abstract
A perforating gun using an electrical safe arm device and a capacitor exploding foil initiator device. The capacitor exploding foil initiator device having a capacitor connected in parallel to a bleed resistor which are connected across an exploding foil initiator by an over-voltage gap switch. When a voltage of the capacitor reaches a breakdown voltage of the switch, the energy stored in the capacitor is discharged through the switch to the exploding foil initiator which initiates a detonator cord thereby detonating the shaped charges of the perforating gun.
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