Frac plug with bi-directional gripping elements
US10626697B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Sep 14, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/128
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A frac plug for use in a wellbore includes an upper mandrel with an axis extending therethrough and a lower mandrel that moves axially along the axis and towards the upper mandrel. The frac plug further includes a sealing element and a grip ring that move radially outward from the axis and into engagement with the wellbore. The grip ring includes a first gripping element positioned at a first rake angle with respect to the axis to prevent upward movement of the grip ring with respect to the wellbore when in gripping engagement with the wellbore, and a second gripping element positioned at a second rake angle with respect to the axis that is different from the first rake angle to prevent downward movement of the grip ring with respect to the wellbore when in gripping engagement with the wellbore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.