Wellbore cleanup tool
US7513303B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Apr 10, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B27/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellbore cleanup tool features a flow diverter that comprises a series of bristles mounted on a sleeve that slides on a spiral track on a mandrel. For run in the sleeve is in an upper position with respect to the mandrel and allows flow around the outside of the screen and through passages defined between the sleeve and the mandrel. When coming out of the hole, the sleeve shifts down and the bristles block flow through themselves so as to direct the debris laden fluid under the sleeve that now rests on top of the screen. The defined flow path is under the sleeve and behind the screen leaving the debris trapped and allowing the fluid to pass through the screen without the debris.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.