Drillable plug
US10450829B2 · kind B2 · utility
5Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2014 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Mar 25, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1204
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drillable plug includes a mandrel having an upper end and a lower axial section, the lower axial section having a geometry transition point separating an upper circular mandrel profile from a lower non-circular mandrel profile, a seal element disposed around the upper circular mandrel profile, and a lower cone having an inner surface forming a passage, the lower cone disposed around the lower non-circular mandrel profile whereby the lower cone is rotationally locked with the mandrel and a lower slip assembly moveably disposed on a sloped outer surface of the lower cone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.