Electrical submersible pump control
US11913444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2019 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | May 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/09
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system, method, and computer-readable medium for determining the flow rate and fluid density in an electrical submersible pump (ESP) and controlling the ESP based on the flow rate and density. In one implementation, an ESP system includes an ESP, drive circuitry, a current sensor, a voltage sensor, and a processor. The ESP includes an electric motor. The drive circuitry is electrically coupled to the ESP and is configured to provide an electrical signal to power the ESP. The current sensor is configured to measure a current of the electrical signal. The voltage sensor is configured to measure a voltage of the electrical signal. The processor is configured to calculate speed of a shaft of the electric motor based on a frequency induced by rotation of the motor detected in the current. The processor is also configured to calculate a density of fluid in the ESP based on the speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.