Wellbore flow diversion tool utilizing tortuous paths in bow spring centralizer structure
US10400540B2 · kind B2 · utility
1Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2017 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Aug 14, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for at least partially sealing an annulus of a wellbore comprises a hollow mandrel pipe adapted to attach to a tubing string, and a cylindrical cage surrounding and attached to an exterior length of the mandrel pipe, the cylindrical cage having a plurality of generally lengthwise tortuous path apertures generally parallel with one another between the two open ends of the mandrel pipe, the plurality of generally lengthwise tortuous path apertures defining a plurality of bow springs therebetween, the plurality of bow springs bowed outward from the mandrel pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.