System to control extrusion gaps in an anti-extrusion device
US10760373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2017 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Dec 14, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed embodiments include a retrievable bridge plug assembly. The retrievable bridge plug assembly includes a sealing element that is elastically deformable to expand radially outward when the sealing element experiences axial compression and at least one anti-extrusion device positioned downhole from the sealing element. The at least one anti-extrusion device includes a shoulder that in operation maintains contact with the sealing element. Also included in the at least one anti-extrusion device is a plurality of anti-extrusion petals positioned downhole from the shoulder that expand radially outward from the anti-extrusion device. Additionally, the at least one anti-extrusion device includes an expandable sleeve surrounding the plurality of anti-extrusion petals that covers extrusion gaps of the plurality of anti-extrusion petals when the plurality of anti-extrusion petals expand radially outward from the anti-extrusion device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.