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Medium-voltage frequency conversion system used for shale gas extraction

A technology of shale gas exploitation and frequency conversion system, which is applied in the direction of control system, electrical components, direct torque control, etc., can solve the problems of long working hours, achieve low mechanical wear, reduce manufacturing cost, reduce volume and weight Effect

Inactive Publication Date: 2013-05-08
SICHUAN HONGHUA ELECTRIC
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In 2010, 30 stages or even higher stages of fracturing were tested, and the corresponding working time for single well fracturing was getting longer and longer

Method used

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  • Medium-voltage frequency conversion system used for shale gas extraction
  • Medium-voltage frequency conversion system used for shale gas extraction

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Embodiment Construction

[0020] The technical scheme of the present invention is further described below in conjunction with the accompanying drawings, but the content protected by the present invention is not limited to the following description.

[0021] Such as figure 1 As shown, the medium-voltage frequency conversion system for shale gas exploitation includes an electric control room, ABB medium-voltage frequency conversion system, motor system, PLC control system, fracturing pump, user operating system and remote monitoring system. The motor The system includes an AC variable frequency motor, a soft starter, a sensor and a cooling system, and the soft starter, sensor and cooling system are respectively connected to the AC variable frequency motor;

[0022] The voltage output of the electric control room is connected to the ABB medium voltage frequency conversion system, the output of the ABB medium voltage frequency conversion system is connected to the AC frequency conversion motor, the AC freq...

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Abstract

The invention discloses a medium-voltage frequency conversion system used for shale gas extraction. The medium-voltage frequency conversion system comprises an electric control chamber, an ABB medium-voltage frequency conversion system, a motor system, a programmable logic controller (PLC) control system, a fracturing pump, a user operating system and a remote monitoring system. The motor system comprises an alternate current frequency conversion motor, a soft starter, a sensor and a cooling system. The soft starter, the sensor and the cooling system are respectively connected with the alternate current frequency conversion motor. Voltage output of the electric control chamber is connected with the ABB medium-voltage frequency conversion system, output of the medium-voltage frequency conversion system is connected with the alternate current frequency conversion motor, the alternate current frequency conversion motor directly drives the fracturing pump, data output of the sensor is connected with the PLC control system, and the PLC control system is also respectively connected with the ABB medium-voltage frequency conversion system, the soft starter and the user operating system. According to the medium-voltage frequency conversion system, the motor directly drives the fracturing pump to replace a traditional mechanical transmission line, work efficiency of a unit is improved, the size and the weight of the unit are reduced, and manufacturing cost is reduced.

Description

technical field [0001] The invention relates to a medium-voltage frequency conversion system, in particular to a medium-voltage frequency conversion system for shale gas exploitation. Background technique [0002] Shale gas is natural gas retained in oil-generating rock formations. It is a type of "unconventional natural gas" and belongs to the same category as "coal bed methane" and "tight gas". As one of the emerging energy disciplines, the research and development of shale gas is not easy. Constrained by the theoretical and technical bottlenecks in exploration and development, currently, except for the United States, which has commercialized a large number of shale gas development and utilization, other countries are still in the research and development stage. With the development of exploration and development technology, unconventional natural gas will become an important low-carbon resource in my country in the future. [0003] Shale gas is natural gas filled in sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P23/00H02P27/06H02P23/30
Inventor 王江阳赵崇胜邓果程明皓
Owner SICHUAN HONGHUA ELECTRIC
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