Apparatus for catching debris in a well-bore
US6250387A · kind A · utility
51Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Jan 22, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/002
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A down-hole tool is described for collecting loose debris particles in a well bore. The tool has a body connectable in a work string for actively diverting well fluid through the tool body with at least some of the diverted well fluid being filtered as it passes through the tool by a filter. In a preferred embodiment the tool also comprises a cleaning member, such as a wiper for wiping the casing or liner wall of the well and a trap for trapping filtered debris up stream of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.