Cementing tool
US9464503B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Nov 30, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/13
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A secondary cementing apparatus includes a drill string, a coupling coupled to a distal end of the drill string, and a tool coupled to a distal end of the coupling, the tool having a distal portion offset from a central axis of the drill string, and the coupling configured to allow selective rotation of the tool with respect to the drill string. A method for plugging a hole includes rotating a drill string about a central axis of the drill string, wherein a distal end of the drill string is coupled to a tool, the tool having an offset distal portion from a central axis of the drill string; and flowing a fluid down the drill string and out of the offset distal portion of the tool as the drill string is rotated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.