Downhole piston pump and method of operation
US8613317B2 · kind B2 · utility
8Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2009 |
| Grant date | Dec 24, 2013 |
| Priority date | — |
| Expiry date | Jan 6, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B47/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method, according to one or more aspects of the present disclosure, for operating a positive displacement pump of a downhole tool comprises supplying a hydraulic pressure to the pump to actuate a two-stroke piston to displace fluid at least partially through the downhole tool; moving the piston in a first stroke direction; and reversing the direction of the piston upon completion of the first stroke of the piston. Completion of a stroke may comprise a head of the piston substantially abutting an end wall of a chamber of the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.