Externally-orientated internally-corrected perforating gun system and method
US9382784B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2015 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Apr 3, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/119
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A perforating gun comprising an elongated shaped scallop that is cut circumferentially in an outside surface of the perforating gun such that said scallop has a constant thickness portion and a variable thickness portion. The variable thickness portion is cut on either end of the constant thickness portion and an arcuate length of the constant thickness portion subtends an angle at a center of said perforating gun. The elongated shaped scallop aligns to shaped charges that are oriented along a desired perforating orientation in the perforating gun. During perforating, the shaped charges perforate through the elongated shaped scallop such that a burr created by the plural shaped charges does not substantially protrude past an outside diameter of the perforating gun.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.