Split ring shift control for hydraulic pulse valve
US9279300B2 · kind B2 · utility
5Cited by
108References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Jun 3, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic pulse valve for use in downhole tools includes a split ring seal to limit the fluid flow available to shift a poppet in the valve from an open position to a closed position. The split ring seal provides relatively long and repeatable pressure pulses, which improve the effectiveness of the hydraulic pulse valve for borehole applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.