Fixed frequency high-pressure high reliability pump drive
US9945365B2 · kind B2 · utility
236Cited by
20References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2014 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Aug 6, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B47/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus configured to hydraulically fracture an earth formation, includes a pump configured to hydraulically fracture the earth formation by pumping a fracturing liquid into a borehole penetrating the earth formation and an electric motor having a rotor coupled to the pump and a stator. A motor control center is configured to apply an alternating electrical voltage having a fixed-frequency to the stator in order to power the electric motor, wherein the apparatus and motor control center do not have a variable frequency drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.