Centralizer assembly and method for attaching to a tubular
US9745803B2 · kind B2 · utility
5Cited by
66References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2014 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Jan 27, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A centralizer, method, and centralizer assembly. For example, the centralizer assembly includes a first stop collar fixed in place on a tubular, and a first end collar that is sized to slide axially over the first stop collar. The centralizer assembly also includes a first retainer coupled with the first end collar. The first retainer prevents the first stop collar from sliding past the first stop collar in at least one axial direction. The assembly also includes a plurality of ribs coupled with the first end collar and configured to engage a surrounding tubular in which the tubular is disposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.