Cement plug and methods of use
US12180804B2 · kind B2 · utility
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3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2023 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Oct 6, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/165
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments are directed to improved apparatus and methods of use in the oil and gas industry and, more particularly, to downhole plugs such as cement plugs. The present cement plugs may be temporarily positioned at predetermined locations within a casing string, and form at least one annular wiper fin having at least one expansion member configured for biasing the at least one wiper fin radially outwardly and into sealing engagement with the inner surface of the casing string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.