Down-hole tool with centralising component
US6152220A · kind A · utility
23Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1999 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Mar 2, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B37/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tool for use in a well bore has a housing attachable to a work string or drill string wherein the housing supports a floating component that is free to move in the lateral or radial members relative to the housing within predetermined limits. The floating component is suitable for supporting active tool components such as wire bristles, scraper blades or other functional apparatus. Typically, the floating component is provided as a sleeve around the housing held within axial limits, while enabling radial movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.