Cement diffuser for annulus cementing
US8033331B2 · kind B2 · utility
62Cited by
13References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 20, 2010 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Sep 4, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cement diffuser and method for allowing a ported tubular to be cemented in place, while keeping an annulus about a port of the ported tubular generally free of set cement. The cement diffuser includes a collection of fibers secured over the port and extending out from an outer surface of the tubular.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.