Title:
Perforating devices
United States Patent 2980017
US Patent References:
/0866838.html
- - 0866838

Gun perforator
- - 2402153

Gun perforator
- - 2418486

Externally fired perforating gun
- - 2433231

Apparatus for perforating well casings and well walls
- - 2494256


Inventors:
Castel, Jacques H.
Publication Date:
04/18/1961
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Assignee:
PGAC DEV COMPANY
Primary Class:
175/4.600
Other Classes:
166/55.100, 102/313, 89/1.150, 102/310
International Classes:
E21B43/117; E21B43/11
US Patent References:
2629325Jet type perforating unit
2669928Perforating device for wells
2708408Well perforating device
2742857Gun perforators
2749840Gun perforators for wells
Foreign References:
AT146615B
FR1023832A