Fracturing system

Patent metadata

Field	Value
Publication number	US-12173594-B2
Application number	US-202217887931-A
Country	US
Kind code	B2
Filing date	Aug 15, 2022
Priority date	Jun 13, 2019
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

The present disclosure provides a fracturing system comprising fracturing equipment. The fracturing equipment comprises a power supply platform, a gas turbine engine, one or more rectifiers, and a power system comprising at least one of the following: a generator, an energy storage, and an electricity supplier. At least two of the gas turbine engine, the power system, and the one or more rectifiers are arranged on the power supply platform. A first end of the power system is connected to the gas turbine engine. A second end of the power system is connected to the one or more rectifiers. The power system is configured to output a voltage to the one or more rectifiers directly without passing through a rectifier transformer.

First claim

The invention claimed is:

1. A fracturing system, comprising fracturing equipment, wherein:
the fracturing equipment comprises a power supply platform, a gas turbine engine, one or more rectifiers, and a power system comprising at least one of the following: a generator, an energy storage, and an electricity supplier;
at least two of the gas turbine engine, the power system, and the one or more rectifiers are arranged on the power supply platform;
a first end of the power system is connected to the gas turbine engine;
a second end of the power system is connected to the one or more rectifiers; and
the power system is configured to output a voltage to the one or more rectifiers directly without passing through a rectifier transformer.

2. The fracturing system of claim 1 , wherein:
the generator comprises at least one of: a diesel generator, a turbine generator, a gas generator, a nuclear reactor generator;
the energy storage comprises a battery, a switch, a charging interface, and an electric supply interface; and
the electricity supplier comprises at least one of an electricity grid, photovoltaic electricity generating equipment, a wind power plant, and a fuel cell.

3. The fracturing system of claim 1 , further comprising:
a frequency converter comprising a rectifier and an inverter, wherein the electricity supplier is connected to the fracturing equipment.

4. The fracturing system according to claim 3 , wherein:
the rectifier is electrically connected with the inverter via a DC bus;
the energy storage is electrically connected with the DC bus or the inverter;
the electricity supplier is electrically connected to the fracturing equipment via at least the energy storage and configured to power the fracturing equipment; and
the energy storage is electrically connected respectively with the electricity supplier and the fracturing equipment, the energy storage being configured to store electrical energy from the electricity supplier and power the fracturing equipment.

5. The fracturing system according to claim 3 , wherein the electricity supplier comprises a generator set, and the energy storage is configured to supply electrical energy to the generator set.

6. The fracturing system according to claim 3 , wherein:
the fracturing system further comprises a switch cabinet and a transformer;
the electricity supplier is electrically connected with the fracturing equipment via the switch cabinet, the transformer, and the frequency converter; and
(i) the energy storage is electrically connected with the fracturing equipment via the switch cabinet, the transformer, and the frequency converter, or (ii) the energy storage is electrically connected with the fracturing equipment through the transformer and the frequency converter.

7. The fracturing system according to claim 6 , wherein the transformer is integrated with the rectifier, and the inverter is integrated with a power element of the fracturing equipment.

8. The fracturing system according to claim 3 , wherein a charging interface of the energy storage is electrically connected with the rectifier.

9. The fracturing system according to claim 3 , wherein the electricity supplier, the energy storage, and the fracturing equipment are electrically connected in series.

10. The fracturing system according to claim 3 , wherein the energy storage further comprises a battery, a switch, a charging interface, an electric supply interface, and an additional rectifier electrically connected between the charging interface and the battery.

11. The fracturing system according to claim 10 , wherein the energy storage further comprises an additional inverter, the electric supply interface comprises an AC electric supply interface, and the additional inverter is electrically connected between the battery and the AC electric supply interface.

12. The fracturing system according to claim 10 , wherein the energy storage further comprises a DC/DC converter electrically connected between the charging interface and the battery or between the battery and the electric supply interface.

13. The fracturing system according to claim 10 , wherein the electric supply interface comprises a DC electric supply interface electrically connected with the battery directly.

14. The fracturing system according to claim 1 , wherein:
the energy storage comprises a battery, a switch, a charging interface, and an electric supply interface; and
the energy storage comprises a bidirectional converter, and the charging interface and the electric supply interface are respectively electrically connected with the battery via the bidirectional converter.

15. The fracturing system according to claim 1 , further comprising a centralized control in communication connection with the fracturing equipment and the energy storage via a wired or a wireless connection, wherein the centralized control is configured to monitor or control working parameters of the fracturing equipment and the energy storage.

16. The fracturing system according to claim 15 , wherein the centralized control is configured to send out alarm information or reduce a power consumption of the fracturing equipment when a voltage, current, or frequency of power supply to the fracturing equipment deviates from a range.

17. The fracturing system according to claim 15 , wherein the centralized control is configured to:
control the energy storage to supply electrical energy to the fracturing equipment when power supply from the electricity supplier is cut off; and
control the energy storage to charge a portion of batteries of the energy storage and supply electrical energy from a different portion of the batteries of the energy storage at the same time.

18. The fracturing system according to claim 1 , further comprising a centralized control in communication connection with the electricity supplier and the energy storage and configured to:
control the electricity supplier to supply power to the fracturing equipment alone;
control the energy storage to supply power to the fracturing equipment alone; or
control both the electricity supplier and the energy storage to both supply power to the fracturing equipment.

19. A fracturing system, comprising:
a power supply platform;
one or more fracturing plunger pumps;
a gas turbine engine;
one or more rectifiers; and
a power system comprising at least one of the following: a generator, an energy storage, and an electricity supplier, wherein:
at least two of the gas turbine engine, the power system, and the one or more rectifiers are arranged on the power supply platform;
a first end of the power system is connected to the gas turbine engine;
a second end of the power system is connected to the one or more rectifiers;
the power system is configured to output a voltage to the one or more rectifiers directly without passing through a rectifier transformer; and
the one or more rectifiers are coupled to one or more electric motors and configured to power the one or more electric motors to drive the one or more fracturing plunger pumps.

20. A fracturing method, comprising:
controlling an energy storage to supply electrical energy to fracturing equipment when power supply from an electricity supplier is cut off, wherein:
the fracturing equipment comprises a power supply platform, a gas turbine engine, one or more rectifiers, and a power system comprising at least one of the following: a generator, the energy storage, and the electricity supplier;
at least two of the gas turbine engine,

Assignees

• Yantai Jereh Petroleum Equipment & Technologies Co Ltd

Inventors

• Cui Shuzhen
• Zhang Rikui
• Liu Dong
• Zhong Jifeng
• Lv Liang
• Li Shouzhe
• Wu Yipeng

Classifications

• H02K7/1823

  structurally associated with turbines or similar engines · CPC title

• F04B17/03

  driven by electric motors · CPC title

• F04B47/02

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

• E21B43/2607 Primary

  Surface equipment specially adapted for fracturing operations · CPC title