Downhole scraper
US8826986B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2008 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Dec 16, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B37/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool including a resilient body configured to be disposed on a drill string, the resilient body comprising a plurality of radial blades having an abrasive coating, wherein the radial blades are configured to deflect when inserted into downhole tubing, and wherein the resilient body is configured to allow rotation relative to the drill string. Additionally, a method for cleaning downhole tubing, the method including inserting a resilient scraper disposed on a drill string into the downhole tubing, the resilient scraper including a plurality of radial blades having an abrasive coating. The method further including rotating the drill string, and contacting the resilient scraper to an internal wall of the downhole tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.