Two-material PandA plug
US10584554B2 · kind B2 · utility
1Cited by
9References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 16, 2019 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Apr 16, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/13
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A plug for Plug and Abandonment (P&A) operations. The plug is a two-part plug of bismuth-based alloy and resin, and embedded heater sleeve providing reinforcement, allowing for sealing of an oil well using two different mechanisms with a shorter plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.