Perforating charge for use in a well
US7984674B2 · kind B2 · utility
0Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2010 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Dec 21, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/116
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A perforating charge for use in a wellbore includes an explosive and a liner to be collapsed by detonation of the explosive. The liner includes at least a first liner portion and a second liner portion which have different cohesiveness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.