Well perforating apparatus and method
Patent
·
OSTI ID:5146285
A perforating apparatus is described, comprising: a perforating gun body; and carrier means, disposed in the perforating gun body, for carrying at least p explosive charges so that, when explosive charges are carried thereby, each successive explosive charge is laterally spaced from a preceding one by an angle (m/p)(360/sup 0/), where p is a whole number greater than 4 and m is a whole number greater than 1 but less than (p-1), and where m/p is an irreducible fraction. The carrier means including: an outer charge holder tube having holes defined therein in accordance with the angle so that each of the holes is disposed for having a discharge end of an explosive charge facing radially outwardly therethrough; and an inner charge holder tube disposed axially through the outer charge holder tube. The inner charge holder tube having cavities defined therein. Each of the cavities aligned with a respective one of the holes of the outer charge holder tube so that each of the cavities is disposed for receiving an initiation end of an explosive charge near a center line of the perforating gun body.
- Assignee:
- James R. Duzan, Duncan, OK
- Patent Number(s):
- US 4726431
- OSTI ID:
- 5146285
- Country of Publication:
- United States
- Language:
- English
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