Downhole cleaning tool with shear clutch
US6530429B2 · kind B2 · utility
16Cited by
11References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2001 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Feb 7, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1064
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cleaning tool (1) for cleaning casing within a wellbore is comprised of an upper (3) and lower (4) sleeve which are mounted via ball bearings (5) on a work string (2). The ball bearings enable the upper (3) and lower (4) sleeves to have no or negligible rotational movement notwithstanding rotation of the work string (2). The upper (3) and lower (4) sleeve limit the axial movement of the cleaning tool (1) along the work string (2). The cleaning tool (1) is further comprised of at least one lantern (6) which supports the plurality of cleaning member (7) which may be brushes or scraping blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.