Wellhead cleanup tool
US6401813B1 · kind B1 · utility
17Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Sep 15, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0078
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A down-hole tool 1 has a body of varying cross-sectional diameter to correspond with a stepped profile of a well bore, such as at the well head. The tool is provided with cleaning members, such as bristles, and fluid circulation paths terminating in radial outlets 11 for cleaning otherwise difficult formations or profiles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.