Wellbore filtration tool with novel wiper cup
US9920595B2 · kind B2 · utility
0Cited by
4References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | May 18, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides wellbore cleaning tool and method featuring a wiper assembly which allows fluid to bypass the tool in one direction while diverting the well fluid through a filter screen in another direction. This may be achieved by either circulation of the fluid in the wellbore or by moving the tool relative to the fluid in the wellbore. The wiper assembly includes multiple groups or series of wiper elements wherein one petal shaped element aligns with a slot to form a seal when the tool body is retrieved from the well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.