Deployable centralizers
US9580976B1 · kind B1 · utility
3Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Feb 27, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1028
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A centralizer assembly is disclosed that allows for the assembly to be deployed in-situ. The centralizer assembly includes flexible members that can be extended into the well bore in situ by the initiation of a gas generating device. The centralizer assembly can support a large load carrying capability compared to a traditional bow spring with little or no installation drag. Additionally, larger displacements can be produced to centralize an extremely deviated casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.