Method and apparatus for borehole perforating

Details Method and apparatus for borehole perforating Method and apparatus for borehole perforating

1978-04-13

1980-01-29

Leppink, James A.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

With bore condition firing control, or compensating means

102 216, E21B 700

Patent

active

041857020

ABSTRACT:
Method and apparatus for perforating an earth formation from a well bore wherein each perforator unit of a perforator gun utilizes the combination of a shaped charge and a bullet and the perforator unit is adapted to fire the shaped charge responsive to detonation of detonating cord and the bullet is fired responsive to the firing of the shaped charge.

REFERENCES:
patent: 2809585 (1957-10-01), Moses
patent: 2946283 (1960-07-01), Udry
patent: 3216320 (1965-11-01), Thomas et al.
patent: 3358780 (1967-12-01), Venghiattis
patent: 3620314 (1971-11-01), Bohn

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