Downhole sampling apparatus and method
US7111685B2 · kind B2 · utility
6Cited by
21References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2003 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Jan 10, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for reducing debris in a perforation in a wellbore extending from the wellbore into a subterranean formations is provided. A housing is positioned in the wellbore, and an arm is extended therefrom. One or more plugs are positionable in the perforation via the arm. The plug is adapted to block debris from formation fluid flowing into the housing via the perforation whereby the contamination in the formation fluid is reduced. The plug may be a filter positionable in the perforation, or a bit activated to dislodge debris.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.