Cutting apparatus
United States Patent 2984307
US Patent References:
Gun perforator device
- - 2344778
Device for detonating explosives in oil wells
- - 2506836
Cutting apparatus
- - 2587243
Apparatus for cutting pipes within a well
- - 2587244
Explosive cutting device
- - 2699721
Gun perforator device
- - 2344778
Device for detonating explosives in oil wells
- - 2506836
Cutting apparatus
- - 2587243
Apparatus for cutting pipes within a well
- - 2587244
Explosive cutting device
- - 2699721
Inventors:
Barnes, Charles H.
Publication Date:
05/16/1961
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Export Citation:
Assignee:
SCHLUMBERGER WELL SURV CORP
Primary Class:
Other Classes:
175/4.600, 175/311, 166/55, 102/307
International Classes:
E21B49/04; F42B3/08; E21B49/00; F42B3/00
US Patent References:
| 2757611 | Shaped charges |
Foreign References:
| GB645611A | ||||
| FR986573A | ||||
| FR999974A |