Plug apparatus and methods for oil and gas wellbores
US10808491B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 2019 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | May 31, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/129
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Aspects of the present disclosure relate generally to plug apparatus and methods, and components thereof, for oil and gas wellbores. In one implementation, a plug for oil and gas wellbores includes a mandrel, and a gauge ring disposed around the mandrel. The plug also includes a guide shoe disposed around the mandrel. The plug also includes a first cone, a second cone, and a seal element between the first cone and the second cone. The seal element includes an edge that faces the second cone. The seal element is movable between a preset position and a set position, and the movement of the seal element between the preset position and the set position folds the edge of the seal element in a direction from a second end of the seal element towards a first end of the seal element and underneath an outer portion of the seal element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.