Nozzles including secondary passages, drill assemblies including same and associated methods
US9033066B2 · kind B2 · utility
1Cited by
23References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2008 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Jun 23, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/61
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Nozzles for drilling tools, such as rotary-type drag bits and roller cone bits, a drilling tool and drilling assembly comprising nozzles, and methods of conveying drilling fluid through a nozzle for use in drilling subterranean formations are provided. A nozzle may include a substantially cylindrical nozzle body having an axis and an inlet port with a primary passage extending therethrough, and at least one secondary passage that diverges from the primary passage at an exit port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.