Variable radius backup ring for a downhole system
US10760369B2 · kind B2 · utility
1Cited by
20References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Nov 11, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/128
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole system includes a packer assembly including a backup ring. The backup ring includes a plurality of nested leaves nested sequentially in a circumferential direction with adjacent circumferentially positioned leaves to collectively form a substantially circular shape. Each leaf includes a receiving section and an insertion section, the receiving section receiving an insertion section of an adjacent leaf. Upon radial expansion of the backup ring, the plurality of nested leaves fan out in the circumferential direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.