Adjustable strength shock absorber system for downhole ballistics
US11732555B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2020 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | May 18, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2226/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A downhole perforation system includes a ballistic device having an first end and a second end, the ballistic device carrying an explosive material. The system further includes a shock absorption device coupled to at least one of the first or second end of the ballistic device and configured to absorb at least a portion of impact energy produced from detonation of the explosive material. The shock absorption device includes a shock absorption module which includes a viscoelastic body and a rigid structure molded within the viscoelastic body. The rigid structure is configured to break or deform when impacted by a threshold amount of impact energy. Broken or deformed portions of the rigid structure are contained within the viscoelastic body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.