Downhole tool with anti-extrusion device
US9677373B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Sep 19, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1216
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool including a mandrel, a sealing element, a cone, a plurality of fingers, and a slip. The sealing element may be positioned around the mandrel. The sealing element is configured to expand radially-outward from a contracted state to an expanded state. The cone may be positioned around the mandrel and proximate to the sealing element. The plurality of fingers may be positioned at least partially around the mandrel. The fingers may be axially-aligned with at least a portion of the sealing element. The fingers are coupled to a base and configured to break away from the base at a weak point when the sealing element expands into the expanded state. The slip may be positioned around the mandrel and proximate to the cone. The slip may include a tapered inner surface configured to slide along a tapered outer surface of the cone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.