Boring or penetrating the earth – Boring with explosion in inaccessible hole – With bore condition firing control – or compensating means
Patent
1998-08-28
2000-08-01
Carone, Michael J.
Boring or penetrating the earth
Boring with explosion in inaccessible hole
With bore condition firing control, or compensating means
175 456, 166 651, 166 551, 102206, 102306, E21B 43116, E21B 2902, F23Q 702, F42B 100
Patent
active
06095258&
ABSTRACT:
A perforating gun assembly for perforating wellbores, comprising a shaped charge carrier assembly, a detonating cord for initiation OF shaped charges in the carrier assembly, an initiator attached to the detonating cord for initiating the cord on application of an electrical control signal to the detonator, and a pressure safety switch connected to the initiator. The pressure safety switch electrically connects the initiator to an electrical cable for carrying the control signal, when a preselected pressure is applied to the pressure safety switch.
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Sales Brochure (Data Sheet 8051), "A8051-X Pressure Actuation Device," Fike Corporation, 704 S. 10th St., Blue Springs, MO 64105 Nov. 1997.
Beveridge Craig A.
Reese James W.
Carone Michael J.
French III Fredrick T.
Springs Darryl M.
Western Atlas International Inc.
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