Cement diffuser for annulus cementing
US7798226B2 · kind B2 · utility
65Cited by
10References
66Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 2008 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Sep 7, 2028 |
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.