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US 2020/0370400 A1Published application
Method and system for controlling downhole pumping systems
AssigneeMagnetic Pumping Solutions
InventorsRAMEZ GUINDI, GEORGIOS ORFANOUDAKIS, MICHAEL YURATICH
Life of this patent
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Abstract
An apparatus and method for controlling a downhole pumping system is disclosed. The apparatus is capable of detecting motor operating conditions and pump operating conditions thereby and includes control systems for utilizing the motor operating conditions to control the operation of the downhole pumping system.
Claims26
A downhole pumping system comprising:
- a pump;
- a motor configured to operate the pump;
- a variable speed drive including a vector current controller configured to control an operation of the motor;
- an observer comprising an electrical model of the motor configured to provide an estimate of at least one operating parameter of the motor;
- a regulating unit configured to receive a current of the motor and to monitor the estimate of at least one operating parameter of the motor, wherein the regulating unit is configured to communicate a signal to the vector current controller;
- wherein the variable speed drive is configured to control the operation of the motor based on the signal from the regulating unit;
- and
- wherein the signal is any of a normal operation signal, a maximum speed signal, a minimum speed signal, a maximum current signal and a minimum current signal.
5 more elements
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A downhole pumping system comprising:
- a pump;
- a motor configured to operate the pump;
- a variable speed drive including a vector current controller configured to control an operation of the motor;
- an observer configured to provide an estimate of at least one operating parameter of the motor;
- a regulating unit configured to receive a current of the motor and to monitor the estimate of at least one operating parameter of the motor, wherein the regulating unit is configured to communicate a signal to the vector current controller;
- wherein the variable speed drive is configured to control the operation of the motor based on the signal from the regulating unit;
- and
- wherein the variable speed drive is configured to control the operation of the motor based on the signal from the regulating unit in any one of a current control mode, a speed control mode and a power control mode.
5 more elements
A method of operating a downhole pumping system that includes a pump, a motor and a variable speed drive comprising:
- setting a time-limited performance zone for the operation of the motor;
- monitoring at least one operating parameter of the motor;
- inputting the time-limited performance zone and the operating parameter into the variable speed drive;
- and
- controlling the motor in accordance with the time-limited performance zone and the at least one operating parameter.
2 more elements
Dependencies are inferred from the claim text.