Compact well clean up tool with multifunction cleaning apparatus
US6227291A · kind A · utility
29Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B37/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well cleaning tool for cleaning the inside walls of a well casing has at least two types of cleaning members; for example it may have a row of scraper blades and a row of brushes. The tool may also include one or more rotatable stabilizers that serve to maintain contact of the tool with the internal casing walls. The tool provides for obtaining the benefits of different types of cleaning members from a single trip into a well bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.