Dual redundant detonating system for oil well perforators

Details Dual redundant detonating system for oil well perforators Dual redundant detonating system for oil well perforators

1995-07-12

1996-09-03

Novosad, Stephen J.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

With bore condition firing control, or compensating means

175 456, 175 46, E21B 43117, E21B 431185

Patent

active

055515207

ABSTRACT:
The invention is an apparatus for initiating a wellbore perforator comprising a first firing head for generating a first explosive signal when a first actuation signal is applied to the first firing head, a second firing head for generating a second explosive signal when a second actuation signal is applied to the second firing head, a first means for transferring the first explosive signal to shaped charges in the perforator including a first bulkhead interposed between the shaped charges and the first means for preventing transfer of low order initiation of the first means to the shaped charges, and a second means for transferring the second explosive signal to the shaped charges including a second bulkhead interposed between the shaped charges and the second means for preventing transfer of low order initiation of the second means to the shaped charges.

REFERENCES:
patent: 4650009 (1987-03-01), McClure et al.
patent: 4836109 (1989-06-01), Wesson et al.
patent: 4901802 (1990-02-01), George et al.
patent: 5103912 (1992-04-01), Flint
patent: 5287924 (1994-02-01), Burleson et al.
patent: 5355957 (1994-10-01), Burleson et al.

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