CN218206659U

CN218206659U - Fracturing truck flow automatic regulating apparatus

Info

Publication number: CN218206659U
Application number: CN202222901133.9U
Authority: CN
Inventors: 张百双; 张永亮; 朱宁; 李邵云; 赵壹
Original assignee: Individual
Current assignee: Daqing Jiajing Petroleum Engineering Technology Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-01-03
Anticipated expiration: 2032-11-02

Abstract

An automatic flow regulating device of a fracturing truck relates to the technical field of fracturing devices and comprises a fracturing pump A, a fracturing pump B, an additive liquid tank, a fracturing liquid tank, an additive pipeline, a fracturing liquid pipeline and a controller, wherein the input end of the fracturing pump A is communicated with the additive liquid tank, the output end of the fracturing pump A is communicated with the additive pipeline, the additive pipeline is provided with a control valve A and a flowmeter A, the input end of the fracturing pump B is communicated with the fracturing liquid tank, the output end of the fracturing pump B is communicated with the fracturing liquid pipeline, the outlet end of the fracturing liquid pipeline is connected to the additive pipeline, and the fracturing liquid pipeline is provided with a control valve B and a flowmeter B; the signal output ends of the flowmeter A and the flowmeter B are electrically connected with the input end of the controller, and the output end of the controller is electrically connected with the signal receiving ends of the control valve A, the control valve B, the fracturing pump A and the fracturing pump B respectively. The utility model discloses a proppant is added to "two pumps are multiwell", compares with a pump well of prior art, has saved the goods and materials demand greatly.

Description

Fracturing truck flow automatic regulating apparatus

Technical Field

The utility model belongs to the technical field of fracturing unit, especially, relate to a fracturing truck flow automatic regulating apparatus.

Background

Fracturing is a method of hydraulically fracturing a subterranean formation. The stratum fracturing process is to squeeze the liquid with certain viscosity into stratum by using a fracturing handle, and after the stratum is squeezed out of a plurality of cracks, a propping agent (such as quartz sand and the like) is added to fill the cracks, so that the permeability of the stratum is improved, and the injection and production yield is increased.

When fracturing underground, each well has different requirements on the proppant, and each well has different 0.2-2.5 cubic meters per minute, so that actual production needs to be accurately and quantitatively conveyed according to the requirements of each well.

In the fracturing procedure before adding the proppant, one fracturing pump can be used for simultaneously constructing a plurality of reservoirs, and automatic flow control can be realized through automatic control equipment in the process; when the proppant is added, due to the fact that the required amount of the fracturing fluid is different for each reservoir and the required amount of the proppant is different (the required amount of the proppant needs to be accurate and corresponds to the required amount of the proppant, and the injection amount of the proppant is related to the concentration and the injection flow rate of the proppant), a plurality of portions of the fracturing fluid with different concentrations need to be prepared, and the proppant can be added to only one reservoir at a time, so that the proppant adding process is long in time.

SUMMERY OF THE UTILITY MODEL

Can not add the problem of proppant simultaneously to a plurality of reservoirs in order to solve to add the proppant process in the single pump, the utility model provides a novel fracturing truck flow automatic regulating apparatus, the utility model discloses can realize "two pumps multiwell" of automation and add the proppant.

The utility model provides a technical scheme is: the automatic flow regulating device for the fracturing truck structurally comprises a fracturing pump A, a fracturing pump B, an additive liquid tank, a fracturing liquid tank, an additive pipeline, a fracturing liquid pipeline and a controller, wherein the input end of the fracturing pump A is communicated with the additive liquid tank, the output end of the fracturing pump A is communicated with the additive pipeline, and a control valve A and a flowmeter A are arranged on the additive pipeline; the additive liquid tank is filled with fracturing fluid accompanied with proppant, wherein the concentration of the proppant is certain and is greater than the maximum injection concentration of each reservoir stratum; the input end of a fracturing pump B is communicated with a fracturing liquid tank, fracturing liquid which is not accompanied by a proppant is contained in the fracturing liquid tank, the output end of the fracturing pump B is communicated with a fracturing liquid pipeline, the outlet end of the fracturing liquid pipeline is connected to an additive pipeline, a control valve B and a flowmeter B are arranged on the fracturing liquid pipeline, the fracturing liquid is mixed into each additive pipeline through each fracturing liquid pipeline, and the concentration of the proppant in the additive pipeline is diluted to different degrees according to the requirement of a reservoir, so that the requirement of the reservoir is met, and the working procedure of adding the proppant into a two-pump multi-well fracturing is also realized; the signal output ends of the flowmeter A and the flowmeter B are electrically connected with the input end of the controller, and the output end of the controller is respectively electrically connected with the signal receiving ends of the control valve A, the control valve B, the fracturing pump A and the fracturing pump B; and automatic control is realized through electrical control.

Because the specific gravity of individual propping agent is light, if the individual propping agent is mixed in advance and loaded into the additive liquid tank, the floating phenomenon can occur, so that the concentration of the propping agent in the additive pipeline is different, and in order to avoid the situation, the utility model designs an alternative scheme of the additive liquid tank, namely an additive liquid preparation device; the additive liquid preparation device comprises a propping agent storage hopper, a horizontal conveying pipe, a vertical blanking pipe and a mixing pipe, wherein the lower end of the propping agent storage hopper is communicated with the horizontal conveying pipe, a spiral blade is arranged in the horizontal conveying pipe, a variable frequency motor for driving the spiral blade to rotate is arranged on the outer side of the propping agent storage hopper, the upper end of the vertical blanking pipe is communicated with the output end of the horizontal conveying pipe, the lower end of the vertical blanking pipe is communicated with the mixing pipe, a fracturing pump A is arranged on the mixing pipe at the downstream of the vertical blanking pipe, the upstream of the mixing pipe is communicated with a fracturing liquid tank, and a flowmeter C is arranged on the mixing pipe; the signal output end of the flowmeter C is electrically connected with the input end of the controller; the output end of the controller is electrically connected with the signal receiving end of the variable frequency motor.

The beneficial effects of the utility model are that:

1. the utility model discloses new connected mode has realized "two pumps are multiwell" and has added the proppant, compares with a pump well of prior art, has saved the goods and materials demand greatly.

2. The utility model provides an additive liquid prepares device can realize the online of the light proppant of proportion and prepare, guarantees that the proppant concentration in the additive pipeline is unanimous.

Drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic diagram of the structure of the additive liquid preparation device of the present invention.

Fig. 3 is a block diagram of the automatic control device of the present invention.

In the figure: 1. a fracturing fluid tank; 2. an additive liquid tank; 3. a fracturing pump B; 4. a fracturing pump A; 5. a fracturing fluid line; 6. a control valve B; 7. a flow meter B; 8. a flow meter A; 9. an additive pipeline; 10. a control valve A; 11. a proppant storage hopper; 12. a horizontal delivery pipe; 13. a helical blade; 14. a variable frequency motor; 15. a vertical blanking pipe; 16. a flow meter C; 17. a mixing pipe.

Detailed Description

The structure of this embodiment includes fracturing pump A4, fracturing pump B3, additive fluid reservoir 2, fracturing fluid reservoir 1, additive pipeline 9, fracturing fluid pipeline 5 and controller.

The input end of a fracturing pump A4 is communicated with an additive liquid tank 2, fracturing liquid accompanied by proppant is arranged in the additive liquid tank 2, and the output end of the fracturing pump is communicated with each additive pipeline 9, in the embodiment, four additive pipelines 9 are shown, each additive pipeline 9 is provided with a control valve A10 and a flowmeter A8, the control valve A10 is used for controlling the addition amount of the fracturing liquid with the proppant, and the flowmeter A8 is used for monitoring a flow value. The concentration of the proppant is fixed and is greater than the maximum injection concentration of each reservoir, and in order to reduce the final proppant injection concentration, the embodiment designs a fracturing fluid pipeline 5 for reducing the concentration of the injected proppant.

The input of fracturing pump B3 communicates with fracturing fluid reservoir 1, the splendid attire is not accompanied with the fracturing fluid of proppant in the fracturing fluid reservoir 1, fracturing pump B3's output and fracturing fluid pipeline 5 intercommunication, the exit end of fracturing fluid pipeline 5 is connected on additive pipeline 9, mix into the fracturing fluid in to each additive pipeline 9 through each fracturing fluid pipeline 5, according to the reservoir needs, carry out the dilution of different degrees with the proppant concentration in the additive pipeline 9, thereby satisfy the reservoir demand, the fracturing process of proppant is added to "two pumps are multiwell" has also been realized, compared with prior art "one pump is one well" and practiced thrift the goods and materials by a wide margin. And a control valve B6 and a flowmeter B7 are arranged on the fracturing fluid pipeline 5, the control valve B6 is used for controlling the mixing amount of the fracturing fluid, and the flowmeter B7 is used for monitoring the mixing flow of the fracturing fluid.

The signal output ends of the flowmeter A8 and the flowmeter B7 are electrically connected with the input end of a controller, flow information is transmitted into the controller, the output end of the controller is respectively and electrically connected with the signal receiving ends of the control valve A10, the control valve B6, the fracturing pump A4 and the fracturing pump B3, and the controller respectively and electrically and automatically controls the control valve A10, the control valve B6, the fracturing pump A4 and the fracturing pump B3; and automatic control is realized through electrical control.

Because the specific gravity of individual propping agents is considered to be light, if the propping agents are mixed with fracturing fluid in advance and then are filled into the additive liquid tank 2, the phenomenon of propping agent floating can occur, and the concentration of the propping agents in the additive pipeline 9 is different; in order to avoid the situation, the implementation designs an alternative scheme of the additive liquid tank 2, namely an additive liquid preparation device; as shown in fig. 2, the additive liquid preparation device comprises a proppant storage hopper 11, a horizontal conveying pipe 12, a vertical blanking pipe 15 and a mixing pipe 17, proppant particles are stored in the proppant storage hopper 11, the lower end of the proppant storage hopper 11 is communicated with the horizontal conveying pipe 12, a helical blade 13 is arranged in the horizontal conveying pipe 12, and the helical blade 13 rotates to realize uniform blanking, so that the proppant is uniformly added; a variable frequency motor 14 for driving a helical blade 13 to rotate is arranged on the outer side of the proppant storage hopper 11, and the rotating speed of the motor determines the blanking rate; the upper end of a vertical blanking pipe 15 is communicated with the output end of a horizontal conveying pipe 12, the lower end of the vertical blanking pipe 15 is communicated with a mixing pipe 17, a fracturing pump A4 is arranged on the mixing pipe 17 at the downstream of the vertical blanking pipe 15, the input end of the fracturing pump is connected with the mixing pipe 17, the output end of the fracturing pump A4 is communicated with an additive pipeline 9, the upstream of the mixing pipe 17 is communicated with a fracturing liquid tank 1, and a flowmeter C16 is arranged on the mixing pipe 17; the signal output end of the flowmeter C16 is electrically connected with the input end of the controller; the output end of the controller is electrically connected with the signal receiving end of the variable frequency motor 14.

In conclusion, the novel connection mode of the embodiment realizes that the proppant is added into two pumps and multiple wells, and compared with the prior art that one pump and one well are adopted, the material requirement is greatly saved; the additive liquid preparation device in the embodiment can realize the on-line preparation of the specific gravity light proppant and ensure that the proppant concentration in the additive pipeline 9 is consistent.

Claims

1. The utility model provides a fracturing truck flow automatic regulating apparatus which characterized in that: the additive fracturing pump comprises a fracturing pump A (4), a fracturing pump B (3), an additive liquid tank (2), a fracturing liquid tank (1), an additive pipeline (9), a fracturing liquid pipeline (5) and a controller, wherein the input end of the fracturing pump A (4) is communicated with the additive liquid tank (2), the output end of the fracturing pump A (4) is communicated with the additive pipeline (9), a control valve A (10) and a flowmeter A (8) are arranged on the additive pipeline (9), the input end of the fracturing pump B (3) is communicated with the fracturing liquid tank (1), the output end of the fracturing pump B (3) is communicated with the fracturing liquid pipeline (5), the outlet end of the fracturing liquid pipeline (5) is connected to the additive pipeline (9), and a control valve B (6) and a flowmeter B (7) are arranged on the fracturing liquid pipeline (5); the signal output ends of the flowmeter A (8) and the flowmeter B (7) are electrically connected with the input end of the controller, and the output end of the controller is electrically connected with the signal receiving ends of the control valve A (10), the control valve B (6), the fracturing pump A (4) and the fracturing pump B (3) respectively.

2. The automatic fracturing truck flow regulating device according to claim 1, characterized in that: the additive liquid preparation device comprises a propping agent storage hopper (11), a horizontal conveying pipe (12), a vertical blanking pipe (15) and a mixing pipe (17), wherein the lower end of the propping agent storage hopper (11) is communicated with the horizontal conveying pipe (12), a spiral blade (13) is arranged in the horizontal conveying pipe (12), a variable frequency motor (14) for driving the spiral blade (13) to rotate is arranged on the outer side of the propping agent storage hopper (11), the upper end of the vertical blanking pipe (15) is communicated with the output end of the horizontal conveying pipe (12), the lower end of the vertical blanking pipe (15) is communicated with the mixing pipe (17), a fracturing pump A (4) is arranged on the mixing pipe (17) at the downstream of the vertical blanking pipe (15), the upstream of the mixing pipe (17) is communicated with the fracturing liquid tank (1), and a flow meter C (16) is arranged on the mixing pipe (17); the signal output end of the flowmeter C (16) is electrically connected with the input end of the controller; the output end of the controller is electrically connected with the signal receiving end of the variable frequency motor (14).