At-surface tool for pulse-injection of liquids
US8596300B2 · kind B2 · utility
3Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2010 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Mar 10, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86911
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
For pulsed injection of liquids into the ground, the tool has a rotating cylinder, having through-slots. The tool has an insert, which is pressed against the rotating cylinder. As the cylinder rotates, the slots in the rotor cover/uncover the slots in the insert, creating the required pulses. By suitably shaping the slots, the pulses can have a fast rise-time from closed to open. The insert is shaped to minimize flow interference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.