Systems and methods for adjusting operation of an ESP motor installed in a well
US9429002B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2015 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jan 28, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/128
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems and methods for controlling an ESP installed in a well. The ESP is operated at a first voltage, and the current actually drawn by the ESP motor is monitored and compared to an expected current. If the actual current differs from the expected current, the actual horsepower load on the ESP motor is determined by multiplying an expected horsepower load by the ratio of the actual current to the expected current. A load saturation curve for the actual horsepower load is determined, and a voltage is identified on this curve at which the corresponding current is minimized. The ESP motor is then operated at this new voltage to optimize the efficiency of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.