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Electrically-driven fracturing driving system and electrically-driven fracturing device

A driving system and fracturing technology, applied in pump devices, machines/engines, liquid-variable-capacity machines, etc., can solve the problem of high cost of electric-driven fracturing equipment, achieve low cost, simple pipeline layout, and reduce equipment costs Effect

Pending Publication Date: 2020-01-03
SANY PETROLEUM INTELLIGENT EQUIP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The first purpose of the present invention is to provide an electric drive fracturing drive system to alleviate the technical problem of high cost of electric drive fracturing equipment

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  • Electrically-driven fracturing driving system and electrically-driven fracturing device

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Embodiment Construction

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] The current electric drive fracturing equipment adopts a driving method that uses industrial grid electricity and gas power stations to generate electricity. Through the transformation and distribution system, the electricity is introduced into the variable frequency system, and after rectification and inversion, it is input into the variable frequency motor to drive mechanical fracturing. The pump is working. Because the frequency conversion system in the existing electric drive fracturing equipment is relatively com...

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Abstract

The invention provides an electrically-driven fracturing driving system and an electrically-driven fracturing device, and relates to the technical field of fracturing pump driving equipment. The electrically-driven fracturing driving system comprises an electric motor, a fracturing pump, at least one hydraulic pump and at least one hydraulic motor, wherein the motor is electrically connected withhigh voltage so as to enable the high voltage to supply power to the motor, and the motor is connected with the hydraulic pump and used for driving the hydraulic pump; an oil outlet of the hydraulic pump is connected with an oil inlet of the hydraulic motor and used for driving the hydraulic motor; and the hydraulic motor is in transmission connection with the fracturing pump to drive the fracturing pump. According to the system, the hydraulic fracturing pump is provided with a hydraulic transmission mode, instead of a frequency conversion system and a frequency conversion motor to carry out the rotation speed adjustment, to realize the rotation speed adjustment of the fracturing pump, so that a frequency conversion system with higher cost is not needed, the cost of the hydraulic motor andthe hydraulic pump is low, the pipeline arrangement is simple; and compared with a traditional mode of adopting an electric driving fracturing device of the frequency conversion system, the system reduces the equipment cost.

Description

Technical field [0001] The invention relates to the technical field of fracturing pump drive equipment, in particular to an electric drive fracturing drive system and an electric drive fracturing device. Background technique [0002] With the development of shale gas mining in China, fracturing operations have begun to expand to deep (well depths above 5,000 meters). The construction pressure and total liquid volume continue to increase. High-pressure, large-displacement fracturing operations will increase. The more frequent the visit, the longer the single well fracturing operation time. Transmission vehicle-mounted fracturing equipment has problems such as difficulty in increasing the power of a single unit, high purchase costs, high consumption of fuel and wearing parts, high noise and environmental pollution, etc. The current fracturing equipment has begun to develop in the direction of electric drive and intelligence. [0003] The current electric drive fracturing equipment a...

Claims

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Application Information

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IPC IPC(8): F04B9/10F04B17/03F04B23/04E21B43/26
CPCF04B9/10F04B17/03F04B23/04E21B43/26
Inventor 孙家军张志朋李魁
Owner SANY PETROLEUM INTELLIGENT EQUIP CO LTD
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