Single-machine single-pump electric drive fracturing semitrailer

Abstract

The invention discloses a single-machine single-pump electric drive fracturing semitrailer. A traditional power supply semitrailer and a fracturing semitrailer are integrated in an optimized manner torealize a semitrailer simultaneously having power supply and fracturing functions; the power supply semitrailer and the fracturing semitrailer do not need to be used in a matched manner so that the single-machine single-pump electric drive fracturing semitrailer is more flexible in actual use and the oil and gas field well site layout is greatly optimized; the transportation is convenient; a working state can be reached only by using one group of high voltage cables to be connected with high voltage power supply so that the wiring mounting is faster; compared with diesel oil drive fracturing,electric drive fracturing has the advantages of small noise and no waste gas exhaust pollution; and as a driving source is electric power, compared with the diesel oil, the electric power has the advantage of lower use cost.

Description

technical field [0001] The invention relates to the technical field of electric-driven fracturing equipment, in particular to a single-machine, single-pump electric-driven fracturing semi-trailer. Background technique [0002] In oil and gas field fracturing operation sites around the world, there are two main driving modes for plunger pumps: [0003] The first is that the diesel engine is connected to the gearbox to drive the fracturing plunger pump to work through the transmission shaft. That is to say, the power source is a diesel engine, the transmission device is a gearbox and a drive shaft, and the actuator is a plunger pump. . [0004] This configuration mode has the following disadvantages: [0005] (1) Large size and heavy weight: The diesel engine drives the gearbox to drive the plunger pump through the drive shaft, which is large in size, heavy in weight, limited in transportation, and low in power density. [0006] (2) Not environmentally friendly: Diesel eng...

AI Technical Summary

Problems solved by technology

[0005] (1) Large size and heavy weight: the diesel engine drives the gearbox to drive the plunger pump through the drive shaft, which is large in size and weight, limited in transportation, and low in power density

[0006] (2) Not environmentally friendly: Diesel engine-driven fracturing equipment will generate engine exhaust gas pollution and noise pollution during the operation of the well site. The noise exceeds 105dBA, which seriously affects the normal life of the surrounding residents.

[0007] (3) Uneconomical: Diesel engine-driven fracturing equipment has relatively high initial purchase costs, high fuel consumption per unit power during equipment operation, and high daily maintenance costs for engines and gearboxes.

[0009] Electric drive fracturing is relatively widely used in some places with relatively complete power facilities. The existing electric drive fracturing equipment usually uses special power supply equipment to provide driving power. The power supply equipment and electric drive fracturing The equipment is usually one-to-one, or several electric-driven fracturing equipments are driven by one high-power power supply equipment (hereinafter referred to as one-to-many), but whether it is one-to-one or one-to-many, in the actual use of the well site, It takes too much time to arrange the electric drive fracturing equipment and power supply equipment (that is, the electric drive fracturing equipment and power supply equipment need to be used in a complete set); it is also necessary to connect each electric drive fracturing equipment with the power supply equipment so that The electric drive fracturing equipment enters the working state; the above process is time-consuming and labor-intensive, and there are many connecting cables between the equipment, which is relatively cumbersome

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