Gun perforators for wells
United States Patent 2749840
Publication Date:
06/12/1956
Assignee:
EXXON RESEARCH ENGINEERING CO
Other Classes:
102/319, 175/4.510, 175/4.560, 89/1.150
International Classes:
E21B43/117; F42B3/08; F42D5/045; E21B43/11; F42B3/00; F42D5/00
US Patent References:
| 2058287 | Bore hole device and method of its use | | | |
| 2307360 | Well perforating gun | | | |
| 2436036 | Means for severing well casings and the like in place in the well | | | |
| 2494256 | Apparatus for perforating well casings and well walls | | | |
| 2453814 | Pediatric syringe | | | |
| 2577625 | Retractable side wall core barrel | | | |
| 2669928 | Perforating device for wells | | | |