Well perforator
United States Patent 2833213

Inventors:
Udry, John J.
Publication Date:
05/06/1958
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Assignee:
Borg, Warner
Primary Class:
175/4.600
Other Classes:
102/313, 89/1.150
International Classes:
E21B43/117; E21B43/11
US Patent References:
2616370Well explosive
2629325Jet type perforating unit
2669928Perforating device for wells
2708408Well perforating device
2764938Open hole carrier