Pulse generator
US8733469B2 · kind B2 · utility
7Cited by
29References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jan 20, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B28/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool comprises a pulse generator that can generate longitudinal pulses in a drill string. A poppet is longitudinally moved in and out of an orifice in the pulse generator reducing the flow of drilling mud temporarily, generating a longitudinal pulse. The longitudinal pulse generator may be combined with a conventional transverse pulse generator to create a pulse generator capable of generating pulses in both transverse and longitudinal directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.