WO2022120823A1

WO2022120823A1 - Fracturing equipment

Info

Publication number: WO2022120823A1
Application number: PCT/CN2020/135860
Authority: WO
Inventors: 常胜; 吕亮; 崔树桢; 兰春强; 张建; 纪晓磊; 张怀智; 杜瑞杰
Original assignee: 烟台杰瑞石油装备技术有限公司
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2022-06-16
Also published as: CA3157747A1

Abstract

Provided in the present invention is fracturing equipment, which comprises a plunger pump, a main motor, and a noise-reduction apparatus. The plunger pump is used for pressurizing a liquid. The main motor is transmissively connected to the plunger pump and is used for providing a driving force to the plunger pump. The noise-reduction apparatus is constructed as a cabin structure; the noise-reduction apparatus is provided outside of the main motor and separates the main motor from the plunger pump. The fracturing equipment of the present invention employs the motor to provide the driving force, reduces noise when in operation, with the noise-reduction apparatus separating the main motor from the external environment, effectively reduces the level of noise transmitted to the external environment when the main motor is in operation, implements the effect of noise reduction, and with the plunger pump being separated from the main motor, implements the isolation of a high-voltage hazardous area, thus ensuring operation safety.

Description

Fracturing equipment

technical field

The present invention relates to a fracturing equipment.

Background technique

Fracturing is the core technology for the stimulation of conventional oil and gas fields and the exploitation of unconventional oil and gas resources such as shale gas, shale oil, and coalbed methane. At present, the development of shale gas is mostly in the factory fracturing mode and the zipper-type multi-wellhead uninterrupted fracturing mode. This requires fracturing equipment to be able to operate continuously for a long time. At present, some fracturing equipment is driven by diesel engine, which needs to be equipped with gearbox and transmission shaft. The equipment is large in size, and the operating noise of the engine and gearbox is very loud. Some fracturing equipment is driven by a motor, and the electromagnetic, cooling and exhaust noise are very loud when the motor is working. Due to the large noise generated during operation, the fracturing equipment is not environmentally friendly, and will affect the normal rest of residents around the well site during operation, so it cannot meet 24-hour continuous operation, especially at night.

Therefore, there is a need to provide a fracturing apparatus that at least partially addresses the above-mentioned problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a fracturing equipment.

According to one aspect of the present invention, the fracturing apparatus includes:

a plunger pump for pressurizing the liquid;

a main motor, the main motor is drivingly connected with the plunger pump, and is used for providing driving force for the plunger pump; and

A noise reduction device, the noise reduction device is configured as a cabin structure, the noise reduction device is covered outside the main motor, and separates the main motor from the plunger pump.

According to this solution, the motor is used to provide the driving force, and the noise during operation is small, and the noise reduction device isolates the main motor from the outside world, which can effectively reduce the noise intensity transmitted by the main motor to the outside world during operation, and achieve the effect of noise reduction, and The plunger pump is isolated from the main motor, which realizes the isolation of high-voltage dangerous areas and ensures safe operation.

In one embodiment, the fracturing apparatus further comprises:

a fuel tank containing lubricating oil therein; and

a lubricating drive for driving lubricating oil from the oil tank to the plunger pump for lubricating the plunger pump;

Wherein, the lubricating drive device includes a lubricating pump and a lubricating motor, and the lubricating pump and/or the lubricating motor are arranged in the noise reduction device.

According to this solution, the noise generated by the operation of the lubrication pump and the lubrication motor can be reduced while providing lubrication to the plunger pump.

In one embodiment, the fracturing apparatus further comprises:

a radiator having a fan and configured to dissipate heat from the lubricating oil by air cooling; and

a heat-dissipating motor, the heat-dissipating motor is drivingly connected with the radiator, and is used for providing driving force for the radiator;

Wherein, the radiator and the heat dissipation motor are arranged in the noise reduction device.

According to the solution, the noise generated by the operation of the heat-dissipating motor can be reduced while cooling the lubricating oil.

In one embodiment, the radiator is provided above the main motor, and a heat dissipation window is provided on the top of the noise reduction device at a position corresponding to the radiator.

According to the solution, the heat dissipation window can enhance the heat exchange between the radiator and the outside, and enhance the heat dissipation capability.

In one embodiment, the heat sink is configured as a rectangular parallelepiped, and the heat sink includes at least two fans arranged along the length direction.

According to the present solution, the heat sink is suitable for being integrated in the noise reduction device, and the number of fans is increased, which can enhance the heat dissipation capability.

In one embodiment, the main motor includes a cooling fan, and the cooling fan dissipates heat for the main motor by means of air suction cooling.

According to this solution, the method of suction cooling can effectively reduce the noise generated by the heat dissipation of the main motor.

In one embodiment, the fracturing equipment further comprises a primary exhaust muffler, which is arranged in the noise reduction device and connected to the exhaust port of the cooling fan.

According to this solution, the primary exhaust muffler can reduce the noise generated by the cooling fan during exhaust.

In an embodiment, the air outlet of the cooling fan and the first-stage air exhaust muffler are connected by a soft connection.

According to this solution, the soft connection has low requirements on accuracy, is more convenient to connect, facilitates subsequent installation and maintenance, can compensate for the displacement caused by vibration during operation, and also has the effect of noise reduction and shock absorption.

In one embodiment, along the direction of gas flow, the flow area of the gas flow channel in the flexible connection gradually increases.

According to this solution, the exhaust can be made smoother.

In one embodiment, the fracturing equipment further includes a secondary exhaust muffler, the secondary exhaust muffler is arranged on the noise reduction device, and the secondary exhaust muffler is connected to the first exhaust muffler. The exhaust port of the stage exhaust muffler corresponds.

According to this solution, the primary exhaust muffler can further reduce the noise generated by the primary exhaust muffler during exhaust.

In one embodiment, at least one air inlet is provided on at least one side surface of the noise reduction device, and an air inlet muffler is provided at the position of the air inlet.

According to this solution, the provision of the air inlet can meet the demand of air intake, and the air intake muffler can reduce the noise generated during the air intake, and the integrated arrangement of the air intake muffler and the noise reduction device can make the overall structure compact.

In one embodiment, the outer surface of the main motor is wrapped with noise reduction material.

According to this solution, the noise generated by the main motor during operation can be further reduced.

In one embodiment, the bulkhead of the noise reduction device is configured as a sandwich structure, and the sandwich structure is filled with noise reduction material.

According to this solution, the noise reduction effect of the noise reduction device can be enhanced.

Description of drawings

For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference may be made to the preferred embodiments shown in the accompanying drawings. The same reference numbers in the figures refer to the same parts. It will be appreciated by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present invention and not to limit the scope of the invention in any way, and the various components in the drawings are not drawn to scale.

Figure 1 shows a perspective view of a fracturing apparatus according to a preferred embodiment of the present invention;

Fig. 2 is another perspective view of the fracturing apparatus shown in Fig. 1, wherein the noise reduction device is omitted;

Fig. 3 is a perspective view of the noise reduction device of the fracturing equipment shown in Fig. 1;

Fig. 4 is a partial view in vertical section of the fracturing apparatus shown in Fig. 1; and

FIG. 5 is yet another perspective view of the fracturing apparatus shown in FIG. 1 .

Description of reference numbers:

1 Piston pump 2 Transmission

3 Carrier 4 Noise reduction device

5 Fuel tank 6 Main motor

7 radiator 8 first-level exhaust muffler

9 Secondary exhaust muffler 10 Inlet muffler

11 High pressure line 12 Low pressure line

13 Cooling window 14 Cooling fan

15 Lubricate the drive

Detailed ways

Referring now to the accompanying drawings, specific embodiments of the present invention will be described in detail. What is described here is only the preferred embodiments of the present invention, and those skilled in the art can think of other ways to implement the present invention on the basis of the preferred embodiments, and the other ways also fall within the scope of the present invention.

The present invention provides a fracturing equipment used for fracturing construction work at a well site. The fracturing equipment according to the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2 show a preferred embodiment of a fracturing apparatus according to the present invention, which includes a plunger pump 1 and a main motor 6 . The plunger pump 1 is used to pressurize the liquid, and its liquid inlet end is connected to the low-pressure pipeline 12 . The low-pressure line 12 is used to input low-pressure liquid to the plunger pump 1 . The discharge end of the plunger pump 1 is connected to the high-pressure pipeline 11 . The high pressure line 11 is used to discharge the pressurized liquid. The main motor 6 is used to provide driving force for the plunger pump 1 . The main motor 6 is drivingly connected with the plunger pump 1 through the transmission device 2 . The transmission device 2 may be a transmission shaft or a coupling or the like. Compared with the way of driving the diesel engine, the use of electric drive can significantly reduce the noise generated during operation.

According to the present invention, the fracturing apparatus includes a noise reduction device 4 . As shown in FIGS. 1 and 3 , the noise reduction device 4 is constructed as a cabin structure, the cover of which is provided outside the main motor 6 and isolates the main motor 6 from the plunger pump 1 and the transmission device 2 . On the one hand, the noise reduction device 4 can reduce the intensity of the noise transmitted to the outside by the main motor 6 during operation; on the other hand, the noise reduction device 4 can isolate the high-voltage dangerous area where the main motor 6 is located to ensure the safety during operation. . The thickness of the bulkhead of the noise reduction device 4 may be set to be greater than or equal to 5 mm. The structure strength of the noise reduction device 4 can be increased while isolating the noise, and the device inside the noise reduction device can be protected.

Preferably, the bulkhead of the noise reduction device 4 is configured as a sandwich structure, and the sandwich structure is filled with noise reduction material. In this way, the intensity of noise transmitted from the inside of the noise reduction device 4 to the outside can be further reduced. Among them, the noise reduction material may be porous, loose and breathable material, which can have the effect of sound absorption. Specifically, the noise reduction material may be one or more of polyester fiber, aluminum silicate cotton, rubber sheet, urea-formaldehyde foam, etc., which can be flexibly selected according to actual needs. In addition, the main motor 6 can also be wrapped with the above-mentioned noise reduction material to further reduce noise.

Continuing to refer to FIG. 2, the fracturing apparatus further includes an oil tank 5, a lubrication pump and a lubrication motor. Wherein, the oil tank 5 accommodates lubricating oil, and the oil tank 5 is fluidly connected with the plunger pump 1 . The lubricating oil is used to lubricate the plunger pump 1 . The lubricating pump is fluidly connected with the oil tank 5 and the plunger pump 1 respectively for driving the flow of lubricating oil, and the lubricating motor is drivingly connected with the lubricating pump for providing driving force for the lubricating pump. According to the present invention, the lubricating pump and the lubricating motor are arranged in the noise reduction device 4, so as to reduce the noise transmitted to the outside when the two operate. Preferably, the lubricating pump and the lubricating motor can be integrated into one device, such as the lubricating drive device 15 shown in FIG. 5 .

While lubricating the plunger pump 1, the lubricating oil can also take away the heat generated by the operation of the plunger pump 1, and play a cooling role. Therefore, the lubricating oil has a high temperature after flowing out of the plunger pump 1, and it needs to be cooled down. According to the present invention, the fracturing equipment further includes a radiator 7, which has a fan, which can radiate and cool the lubricating oil by means of air blowing and cooling. In addition, the fracturing equipment also includes a cooling motor that drives the fan to run. As shown in FIG. 5 , the fan and the heat-dissipating motor are integrally integrated in the heat sink 7 . The radiator 7 is arranged in the noise reduction device 4 to reduce the noise intensity transmitted to the outside during operation.

As shown in FIGS. 2 and 5 , preferably, the radiator 7 is configured as a rectangular parallelepiped structure, which is arranged above the main motor 6 in the noise reduction device 4 . In this way, the heat sink 7 can be arranged more flexibly when the space inside the noise reduction device 4 is limited. In addition, at least two fans can be arranged along the length direction of the heat sink 7, and more fans can be arranged under the condition of limited size to improve the heat dissipation capability. Referring to FIGS. 1 and 3 again, preferably, a heat dissipation window 13 is provided on the top of the noise reduction device 4 at a position corresponding to the radiator 7 . The top of the radiator 7 can dissipate heat to the outside through the heat dissipation window 13 .

As shown in FIG. 2 , the main motor 6 includes a cooling fan 14 . The cooling fan 14 cools the main motor 6 by means of suction cooling. Compared with the conventionally used air blowing cooling method, the noise intensity generated by the suction air cooling during operation is lower. The cooling fan 14 is arranged in the noise reduction device 4 along with the main motor 6, which is convenient for its connection with the main motor 6, so that the air inlet of the cooling fan 14 can be set at a position corresponding to the main motor 6, and the noise reduction device can also be used. 4. Reduce the noise intensity transmitted to the outside when the cooling fan 14 is running.

Preferably, the fracturing equipment further includes a primary exhaust muffler 8 , which is arranged in the noise reduction device 4 and is connected to the exhaust port of the cooling fan 14 . The airflow discharged from the cooling fan 14 enters the primary exhaust muffler 8, which can reduce the noise generated by the airflow.

As shown in FIG. 4 , the air outlet of the cooling fan 14 and the primary air exhaust muffler 8 may be connected by a soft connection. Specifically, an exhaust channel between the exhaust port of the cooling fan 14 and the primary exhaust muffler 8 can be formed by using a material with good flexibility such as rubber. Compared with the hard connection, the soft connection has lower requirements on the positioning accuracy between the devices, so the connection is simpler, and the installation and maintenance are convenient. In addition, the soft connection can also compensate for the displacement between the cooling fan 14 and the primary exhaust muffler 8 due to vibration when the equipment is running, thereby avoiding damage to the primary exhaust muffler 8 .

Preferably, the exhaust channel formed by the soft connection is configured such that the flow area of the exhaust channel gradually increases along the airflow direction from the cooling fan 14 toward the primary exhaust muffler 8 . This allows for smoother ventilation. In one embodiment, the soft connection can be designed to be tapered to achieve such a technical effect.

Further preferably, the fracturing equipment further includes a secondary exhaust muffler 9 . The secondary exhaust muffler 9 corresponds to the air outlet of the primary exhaust muffler 8 . The air flow discharged from the primary exhaust muffler 8 enters the secondary exhaust muffler 9 , and is then discharged into the outside after noise reduction through the secondary exhaust muffler 9 . Therefore, the exhaust noise of the cooling fan 14 is reduced to the greatest extent through the double noise reduction and noise reduction method of the primary exhaust muffler 8 and the secondary exhaust muffler 9 . Preferably, the secondary exhaust muffler 9 can be integrally provided with the noise reduction device 4, so that the structure is compact and easy to install.

As shown in FIG. 3 , an air inlet is arranged on the side of the noise reduction device 4 , and an air inlet muffler 10 is arranged at the position of the air inlet. In this way, the air intake requirements of the cooling fan 4 and the radiator 7 can be met, and the noise intensity generated by the air flow passing through the air inlet can be reduced by the air intake muffler 10 . Preferably, on the premise of ensuring strength, safety and noise reduction effect, an air inlet and a corresponding air inlet muffler 10 may be provided on each side of the noise reduction device 4 . Moreover, according to the size of the area, more than one air inlet and the corresponding air inlet muffler 10 may be provided on each side.

Preferably, the fracturing apparatus may further comprise a carrier 3 . The above devices are integrally installed on the carrier 3, so that the fracturing equipment forms a whole, which is convenient for transportation and transfer. In the illustrated embodiment, the carrier 3 may be a skid mounted base. However, in other embodiments, the carrier may also be a chassis vehicle or a semi-trailer or the like.

The fracturing equipment according to the present invention is provided with a noise reduction device, and the noise reduction device covers the outside of the power equipment such as the main motor, the lubricating motor, the radiator, the cooling motor, etc., so as to separate these devices that generate large noise during operation from the outside world. Separation can reduce the intensity of noise transmitted to the outside world. At the same time, the plunger pump can also be isolated from the above-mentioned power equipment, so as to isolate the high-pressure dangerous area and ensure safe operation. A noise reduction material is included outside the main motor, and the bulkhead of the noise reduction device is filled with the noise reduction material. In addition, the main motor is set to dissipate heat by means of air suction cooling, and the air outlet of the cooling fan of the main motor is provided with double The exhaust muffler can further reduce the noise generated by the main motor. By setting the air intake muffler on the noise reduction device, the noise generated by the cooling air intake of the main motor and the air intake of the radiator can be effectively reduced while meeting the air intake requirements of each power equipment.

The foregoing description of various embodiments of the present invention is provided for the purpose of description to one of ordinary skill in the relevant art. It is not intended that the invention be exclusive or limited to a single disclosed embodiment. As above, various alternatives and modifications of the present invention will be apparent to those of ordinary skill in the art of the above teachings. Thus, while some alternative embodiments have been described in detail, other embodiments will be apparent to or relatively readily developed by those of ordinary skill in the art. The present invention is intended to include all alternatives, modifications, and variations of the invention described herein, as well as other embodiments that fall within the spirit and scope of the invention described above.

Claims

A fracturing device, characterized in that the fracturing device comprises:

a plunger pump (1) for pressurizing the liquid;

a main motor (6), the main motor (6) is drivingly connected with the plunger pump (1), and is used to provide driving force for the plunger pump (1); and

A noise reduction device (4), the noise reduction device (4) is configured as a cabin structure, the noise reduction device (4) is covered outside the main motor (6), and the main motor (6) is ) is separated from the plunger pump (1).
The fracturing device according to claim 1, wherein the fracturing device further comprises:

an oil tank (5) containing lubricating oil therein; and

a lubricating drive (15) for driving lubricating oil from the oil tank (5) to the plunger pump (1) in order to lubricate the plunger pump (1);

Wherein, the lubricating drive device (15) includes a lubricating pump and a lubricating motor, and the lubricating pump and/or the lubricating motor are arranged in the noise reduction device (4).
The fracturing device according to claim 2, wherein the fracturing device further comprises:

a radiator (7) having a fan and configured to dissipate heat from the lubricating oil by means of air blowing cooling; and

a heat-dissipating motor, the heat-dissipating motor is drivingly connected to the radiator (7), and is used to provide a driving force for the radiator (7);

Wherein, the radiator (7) and the heat dissipation motor are arranged in the noise reduction device (4).
The fracturing equipment according to claim 3, characterized in that, the radiator (7) is arranged above the main motor (6), and the top of the noise reduction device (4) is on the same side as the radiator. (7) A heat dissipation window (13) is provided at the corresponding position.
The fracturing equipment according to claim 3, wherein the radiator (7) is configured as a rectangular parallelepiped, and the radiator (7) includes at least two fans arranged along the length direction.
The fracturing equipment according to claim 1, characterized in that, the main motor (6) comprises a cooling fan (14), and the cooling fan (14) is the main motor (6) by means of air suction cooling heat dissipation.
The fracturing equipment according to claim 6, characterized in that, the fracturing equipment further comprises a primary exhaust muffler (8), and the primary exhaust muffler (8) is arranged on the noise reduction device (4) and connected with the air outlet of the cooling fan (14).
The fracturing equipment according to claim 7, characterized in that, the air outlet of the cooling fan (14) and the primary air exhaust muffler (8) are connected by a soft connection.
The fracturing equipment according to claim 8, characterized in that, along the direction of gas flow, the flow area of the gas flow channel in the soft connection gradually increases.
The fracturing equipment according to claim 7, characterized in that, the fracturing equipment further comprises a secondary exhaust muffler (9), and the secondary exhaust muffler (9) is arranged on the noise reduction device On (4), the secondary exhaust muffler (9) corresponds to the air outlet of the primary exhaust muffler (8).
The fracturing equipment according to any one of claims 3 to 10, characterized in that, at least one side surface of the noise reduction device (4) is provided with at least one air inlet, and the position of the air inlet is provided with an air inlet. Wind muffler (10).
The fracturing equipment according to claim 1, characterized in that, the outer surface of the main motor (6) is wrapped with a noise reduction material.
The fracturing equipment according to claim 1, characterized in that, the bulkhead of the noise reduction device (4) is configured as a sandwich structure, and the sandwich structure is filled with noise reduction material.