System and method for power management of pumping system

Patent metadata

Field	Value
Publication number	US-9638194-B2
Application number	US-201514588473-A
Country	US
Kind code	B2
Filing date	Jan 2, 2015
Priority date	Jan 2, 2015
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A method implemented by at least one processor includes receiving a pressure profile to be generated by a pumping system, wherein the pumping system includes at least one pump-unit powered by at least one generator-unit. The method also includes receiving a pump-unit parameter from at least one pump-unit and a generator-unit parameter from at least one generator unit. The pump-unit parameter is representative of an operating parameter of the pump-unit. The generator-unit parameter is representative of an operating parameter of the at least one generator-unit. The method includes generating an operating set-point corresponding to the at least one generator-unit based on the pump-unit parameter and the generator-unit parameter, wherein the operating set-point is one of at least one operating set-point corresponding to the at least one generator-unit. The method also includes determining an input parameter for the at least one generator-unit based on the at least one operating set-point.

First claim

The invention claimed is:

1. A method, comprising:
receiving a pressure profile to be generated by a pumping system, wherein the pumping system comprises at least one pump-unit powered by at least one generator-unit;
receiving a pump-unit parameter from at least one pump-unit, wherein the pump-unit parameter is representative of an operating parameter of the pump-unit;
receiving a generator-unit parameter from at least one generator unit, wherein the generator-unit parameter is representative of an operating parameter of the at least one generator-unit;
generating an operating set-point corresponding to the at least one generator-unit based on the pump-unit parameter and the generator-unit parameter, wherein the operating set-point is one of at least one operating set-point corresponding to the at least one generator-unit; and
determining an input parameter for the at least one generator-unit based on the at least one operating set-point.

2. The method of claim 1 , wherein the receiving the pump-unit parameter comprises receiving a pump parameter from a pump and a motor parameter from a motor, wherein the motor drives the pump in the pump-unit.

3. The method of claim 1 , wherein the receiving the generator-unit parameter comprises receiving a generator parameter from a generator of the generator-unit.

4. The method of claim 1 , wherein the receiving pump-unit parameter comprises estimating at least one of a flow value and an injection pressure value corresponding to the at least one pump-unit based on a wellhead pressure.

5. The method of claim 1 , wherein the generating comprises estimating the operating set-point based on model based estimates of pump-unit parameter and the generator-unit parameter.

6. The method of claim 1 , wherein the operating set-point comprises one or more of an output current, an output voltage, and speed of the generator, an input current, an input voltage, an input power, and speed corresponding to one or more motors of the pumping system, and estimated injection pressure of one or more individual pumps of the pumping system.

7. The method of claim 1 , wherein the determining the input parameter comprises determining a fuel input to a prime mover driving a generator of the at least one generator-unit.

8. The method of claim 7 , wherein the determining the input parameter comprises determining an excitation current of the generator powered by the prime mover.

9. The method of claim 8 , wherein the determining the input parameter comprises controlling the excitation current of the generator.

10. The method of claim 7 , wherein the determining the input parameter comprises controlling the fuel input to the prime mover.

11. A system comprising:
at least one processor and a memory communicatively coupled to the at least one processor via a communications bus;
a signal acquisition module communicatively coupled to a pumping system having at least one pump-unit powered by at least one generator-unit, wherein the signal acquisition module acquires a pump-unit parameter from a pump-unit and a generator-unit parameter from a generator-unit;
a set-point generator communicatively coupled to the signal acquisition module to determine an operating set-point based on the pump-unit parameter and the generator-unit parameter, wherein the operating set-point is one of at least one operating set-point corresponding to the at least one generator-unit; and
a power management module communicatively coupled to the set-point generator to receive the at least one operating set-point and determine an input parameter for the at least one generator-unit;
wherein at least one of the signal acquisition module, the set-point generator and the power management module is stored in the memory and executable by at least one processor.

12. The system of claim 11 , wherein the signal acquisition module receives a pump parameter from a pump, a motor parameter from a motor, a generator parameter from a generator, and a prime mover parameter from a prime mover, wherein the motor drives the pump in the pump-unit and the prime mover drives the generator in the generator-unit.

13. The system of claim 11 , wherein the signal acquisition module estimates at least one of a flow value, and an injection pressure value corresponding to the at least one pump-unit based on a well head pressure.

14. The system of claim 11 , wherein the set-point generator determines model based estimates of pump-unit parameter and the generator-unit parameter.

15. The system of claim 11 , wherein the set-point generator determines at least one of an output current, an output voltage, an input current, an input voltage, an input power, speed corresponding to one or more motors of the pumping system, and an estimated injection pressure of one or more individual pumps of the pumping system.

16. The system of claim 11 , wherein the power management module determines a fuel input to a prime mover driving a generator of the at least one generator-unit.

17. The system of claim 16 , wherein the power management module determines an excitation current of the generator.

18. The system of claim 17 , wherein the power management module controls the excitation current of the generator.

19. The system of claim 16 , wherein the power management module controls a fuel input to the prime mover.

20. A non-transitory computer readable medium having a program to instruct at least one processor to:
receive a pressure profile to be generated by a pumping system, wherein the pumping system comprises at least one pump-unit powered by at least one generator-unit;
receive a pump-unit parameter from the at least one pump-unit, wherein the pump-unit parameter is representative of an operating parameter of the pump-unit;
receive a generator-unit parameter from the at least one generator unit, wherein the at least one generator-unit parameter is representative of an operating parameter of the generator-unit;
generate an operating set-point corresponding to the at least one generator-unit based on the pump-unit parameter and the generator-unit parameter, wherein the operating set-point is one of at least one operating set-point corresponding to the at least one generator-unit; and
determine an input parameter for the at least one generator-unit based on the at least one operating set-point.

Assignees

• Gen Electric

Inventors

• Wiegman Herman Lucas Norbert
• Aravind Deepak

Classifications

• F04B2203/0201

  Current · CPC title

• F04D15/0077

  Safety measures (F04D15/02 takes precedence) · CPC title

• F04D15/0066 Primary

  by changing the speed, e.g. of the driving engine · CPC title

• F04B49/065

  and making use of computers · CPC title

• F04B47/02

  the driving mechanisms being situated at ground level (F04B47/12 takes precedence) · CPC title