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D & D Company Ltd. Patents |
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Assignee: D & D Company Ltd.
Address: Victoria, TX
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4375834 |
Casing perforation method and apparatus |
March 8, 1983 |
| Method and apparatus for perforating a well casing (14) with a large pressure differential toward the well casing (14) from the surrounding oil and gas-bearing strata using a casing gun attached on a wireline below the tubing is disclosed. A perforator (12) is attached to a casing gun ad |
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