CN222649982U

CN222649982U - Fracturing fiber filling device

Info

Publication number: CN222649982U
Application number: CN202421589334.2U
Authority: CN
Inventors: 田和平; 冯先刚
Original assignee: Shaanxi Duineng Petroleum Engineering Technology Service Co ltd
Current assignee: Shaanxi Duineng Petroleum Engineering Technology Service Co ltd
Priority date: 2024-07-08
Filing date: 2024-07-08
Publication date: 2025-03-21
Anticipated expiration: 2034-07-08

Abstract

The utility model relates to the technical field of fiber addition in the oil gas development and fracturing construction process, in particular to a fracturing fiber filling device. Including the box, install the control box in the box, be provided with the storage silo in the box, the storage silo is installed in the box through a plurality of weighing sensor, the storage silo intercommunication has the variable frequency to carry the auger, variable frequency carries the auger to communicate with a dispersion section of thick bamboo, dispersion section of thick bamboo and the fixed intercommunication of storage box, the exit end of storage box downside and the entrance point fixed intercommunication of the auger is carried to the software, the exit end of auger is carried to the software and the entrance point intercommunication of mixer truck agitator tank are fixed with the water tank in the box, be fixed with the water pump on the water tank, the entrance point and the water tank intercommunication of water pump, dispersion section of thick bamboo one end fixed intercommunication has a plurality of nozzles, the exit end and the fixed intercommunication of a plurality of nozzles of water pump. The utility model can carry out multistage stirring hydration on the fracturing fibers, thoroughly disperse the fracturing fibers and uniformly mix the fracturing fibers with the fracturing fluid.

Description

Fracturing fiber filling device

Technical Field

The utility model relates to the technical field of fiber addition in the oil gas development and fracturing construction process, in particular to a fracturing fiber filling device.

Background

The fracturing fibers are uniformly dispersed and filled, the fracturing fibers are uniformly mixed by a sand mixing vehicle according to a proportion, the mixed liquid is pumped into a well bottom reservoir through the fracturing vehicle, propping agents at the positions of crack surfaces close to the seam openings are stably paved under the net constraint of the fibers, the propping agents flow into a well shaft in the back drainage or production process is reduced or eliminated to the greatest extent, the resistance of the propping agents to the movement deformation of a sand arch can be enhanced, the stability of a propping agent filling layer is greatly improved, the sand fixing and sand prevention effects are achieved, after the sand mixing vehicle pumps a section of sand, a section of pure liquid is pumped in a pulse mode, repeated alternate circulation sand adding fracturing is carried out, a high diversion channel is formed, the crack diversion capability of the high diversion channel is not influenced by the permeability of the propping agents, oil gas does not flow from the propping agent filling layer, a complex and stable open flow channel network is created inside the cracks through the high diversion channel, and the oil gas yield and the recovery efficiency are maximized.

The fracturing fibers are of micron-sized diameter, are 3-12 mm unequal in length and are clustered or cotton-flocculent, if a gas conveying and filling mode is used, in the process of dispersing and conveying the fibers to a stirring tank of a sand mixing vehicle, the process gas tightness is poor, the damage amount of the fibers is large, the finer fibers can float around a construction area along with overflowing gas to cause air environment pollution, the air-floating extremely fine fibers hurt exposed skin and respiratory systems of a human body, the fibers are easy to be blocked in a conveying pipeline, the continuous and accurate addition amount cannot be ensured, large-displacement filling cannot be implemented, meanwhile, because the fibers are suspended on the upper layer of the mixing tank, the fibers and fracturing fluid cannot be uniformly mixed, if water pump jet and circulating stirring and filling equipment are used, the fibers are dispersed only by virtue of jet and a water pump impeller, the dispersion is not thorough, the fiber clusters are easy to form, the uniformity is poor, the flowback is blocked the pipeline, the water consumption is large, the performance index of the fracturing fluid is easy to change, and the liquid level of the sand mixing tank is not easy to control.

Disclosure of utility model

The technical problem to be solved by the utility model is to design a device which has the advantages of multistage stirring, hydration, thorough dispersion, uniform mixing with fracturing fluid, small water consumption, no influence on the performance index of the fracturing fluid, controllable fiber adding proportion, whole-course sealing, automatic operation and capability of realizing accurate control of filling amount.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

The utility model provides a fracturing fiber filling device, the power distribution box comprises a box body, install the control box in the box, be provided with the storage silo in the box, the storage silo is installed in the box through a plurality of weighing sensor, the storage silo internal rotation is connected with stirring vane, stirring vane is located the feed opening top of storage silo, the storage silo below is provided with the variable frequency and carries the auger, stirring vane carries the auger's inverter motor transmission with the variable frequency and is connected, the feed opening of storage silo and the feed end fixed intercommunication of auger are carried to the variable frequency, the discharge end of auger is carried through the hose and is linked together with the inlet end of dispersion section of thick bamboo, the export of dispersion section of thick bamboo and the inlet end fixed intercommunication of storage silo upside, the outlet end of storage silo downside and the inlet end fixed intercommunication of auger are carried to the software, the kite type dispersion vane is installed to the outlet end of auger, be fixed with the water tank in the box, be fixed with the water pump on the water tank, water pump's inlet end and water tank intercommunication, dispersion section of thick bamboo one end fixed intercommunication has a plurality of nozzles, the outlet end and a plurality of nozzles of water pump are fixed to be linked together with the inlet end of a plurality of nozzles, the filter screen is installed to the filter screen through the return pipe. The weighing sensor, the driving motor of the soft conveying auger and the water pump are electrically connected with the control box.

Specifically, fixedly mounted on the storage silo is a plurality of vibrators, a steel plate net is fixed in the storage silo, a sealing cover is mounted at the upper end of the storage silo, and the vibrators are electrically connected with the control box.

Specifically, the variable frequency motor of the variable frequency conveying auger is electrically connected with the control box.

Specifically, dispersion section of thick bamboo swivelling joint has dispersion blade, is fixed with the motor on the dispersion section of thick bamboo, and dispersion blade is by motor drive, motor and control box electric connection, dispersion section of thick bamboo slope setting, the exit end of dispersion section of thick bamboo is close to the low end of dispersion section of thick bamboo, and the entrance point of dispersion section of thick bamboo is close to the high end of dispersion section of thick bamboo, and a plurality of nozzles are installed on the high end of dispersion section of thick bamboo.

Compared with the prior art, the utility model has the beneficial effects that:

1. The utility model can carry out multistage stirring hydration on the fracturing fibers, thoroughly disperse the fracturing fibers and uniformly mix the fracturing fibers with the fracturing fluid.

2. Water in the storage box can flow back to the water tank for recycling, the water consumption is small, and the performance index of the fracturing fluid is not affected.

3. The variable frequency motor of the variable frequency conveying auger, the motor for driving the dispersing blades and the driving motor of the soft conveying auger can be controlled through the control box, and meanwhile, the weighing sensor can detect the residual quantity of the fracturing fibers in the storage bin, and the adding proportion of the fracturing fibers can be controlled.

4. The utility model is sealed in the whole process of conveying the fracturing fibers into the stirring tank of the sand mixing truck, and the automatic operation can realize the accurate control of the filling quantity.

5. The mixture of the water and the water in the process of filling the fracturing fibers can prevent the fracturing fibers from flying. Can avoid the pollution of air environment and the damage to the exposed skin and respiratory system of human body caused by the fact that finer fiber drifts around the construction area along with the overflow gas.

Drawings

FIG. 1 is a schematic diagram of the present utility model.

The parts in the drawing are 1, a water tank, 2, a water pump, 3, a control box, 4, a variable frequency conveying auger, 5, a feed opening, 6, a chain wheel, 7, stirring blades, 8, a vibrator, 9, a storage bin, 10, a sealing cover, 11, a steel plate net, 12, a weighing sensor, 13, a mixing truck stirring tank, 14, a flexible connecting pipe, 15, a nozzle, 16, a dispersing cylinder, 17, a dispersing blade, 18, a box body, 19, a storage box, 20, a flexible conveying auger, 21 and a water return pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1, a frac fiber filling device includes a case 18, and a control box 3 is installed in the case 18. The storage bin 9 is arranged in the box 18, a plurality of vibrators 8 are fixedly mounted on the storage bin 9, a steel plate net 11 is fixedly arranged in the storage bin 9, a sealing cover 10 is mounted at the upper end of the storage bin 9, and the vibrators 8 are electrically connected with the control box 3.

The steel sheet mesh 11 is capable of filtering the frac fibers in the storage bin 9. The vibrator 8 can make the storage bin 9 vibrate, and can improve the filtration efficiency of the pressure-cracked fibers in the storage bin 9.

The storage bin 9 is mounted in a box 18 by a plurality of load cells 12. The stirring vane 7 is connected with the rotation of storage silo 9, and steel sheet net 11 is located stirring vane 7 top, and stirring vane 7 is located storage silo 9 feed opening 5 top.

The auger 4 is carried in the frequency conversion below the storage silo 9, and the feed opening 5 of storage silo 9 is fixed to be linked together with the feed end of auger 4 is carried in the frequency conversion.

The stirring blade 7 is in transmission connection with a variable frequency motor of the variable frequency conveying auger 4. Specifically, the axle head of stirring vane 7 one side extends to storage silo 9 outside, and all concentric being fixed with sprocket 6 on the stirring vane 7 axle head in storage silo 9 outside and the inverter motor's of inverter conveyor auger 4 output shaft, two sprockets 6 pass through the chain drive and connect.

Can drive stirring vane 7 rotation when the variable frequency motor of auger 4 is carried in the frequency conversion rotates, stirring vane 7 pivoted in-process can stir the fracturing fiber in steel sheet net 11 below storage silo 9, guarantees that the fracturing fiber can be smooth enter into in the auger 4 is carried in the frequency conversion through feed opening 5.

The variable frequency motor of the variable frequency conveying auger 4 is electrically connected with the control box 3. The control box 3 adjusts the conveying quantity of the fracturing fibers in unit time of the variable frequency conveying auger 4 by adjusting the rotating speed of the variable frequency motor of the variable frequency conveying auger 4.

The discharge end of the variable frequency conveying auger 4 is communicated with the inlet end of the dispersing cylinder 16 through a flexible connecting pipe 14.

The dispersing cylinder 16 is rotationally connected with dispersing blades 17, a motor is fixed on the dispersing cylinder 16, the dispersing blades 17 are driven by the motor, and the motor is electrically connected with the control box 3.

The dispersing cylinder 16 is arranged obliquely, the outlet end of the dispersing cylinder 16 is close to the low end of the dispersing cylinder 16, and the inlet end of the dispersing cylinder 16 is close to the high end of the dispersing cylinder 16. A plurality of nozzles 15 are mounted on the high end of the dispersion cylinder 16. The inclined arrangement of the dispersion cylinder 16 facilitates the passage of the frac fibres therein into the storage tank 19.

The outlet of the dispersing cylinder 16 is fixedly communicated with the inlet end of the upper side of the storage box 19, the outlet end of the lower side of the storage box 19 is fixedly communicated with the inlet end of the soft conveying auger 20, and the outlet end of the soft conveying auger 20 is communicated with the inlet end of the stirring tank 13 of the sand mixing vehicle. The exit end of the soft conveying auger 20 is provided with kite type dispersing blades 17.

The water tank 1 is fixed in the tank body 18, the water pump 2 is fixed on the water tank 1, the inlet end of the water pump 2 is communicated with the water tank 1, one end of the dispersing cylinder 16 is fixedly communicated with the plurality of nozzles 15, and the outlet end of the water pump 2 is fixedly communicated with the plurality of nozzles 15. The number of the nozzles 15 is 4 to 6.

The water pump 2 is started, the water in the water tank 1 can enter the dispersing cylinder 16 through the nozzle 15 and is mixed with the fracturing fibers in the dispersing cylinder 16, and the water entering the dispersing cylinder 16 can be prevented from flying after being discharged from the outlet end of the soft conveying auger 20 after being mixed with the fracturing fibers in the dispersing cylinder 16.

The lower end of the storage box 19 is communicated with the water tank 1 through a water return pipe 21. A filter screen is installed at the inlet end of the return pipe 21.

After the water and the fracturing fibers enter the storage box 19, the redundant water can flow back to the water tank 1 through the water return pipe 21, and the phenomenon that the performance index of the fracturing fluid is affected due to the fact that the redundant water enters the mixing tank 13 of the mixer truck can be avoided. Meanwhile, redundant water flows back to the water tank 1 for recycling, so that the water consumption in the process of conveying the fracturing fibers can be reduced, and the cost of spacing conveying of fracturing is reduced.

The filter screen installed at the inlet end of the return pipe 21 can intercept the fracturing fibers and prevent the fracturing fibers from entering the water tank 1.

The weighing sensor 12, the driving motor of the soft conveying auger 20 and the water pump 2 are electrically connected with the control box 3.

The residual quantity of the fracturing fibers in the storage bin 9 can be known in real time through the cooperation of the weighing sensor 12 and the control box 3, and quantitative conveying and adding of the fracturing fibers are facilitated. The control box 3 can be connected with a computer in a communication way, and remote control of the conveying and adding of the fracturing fibers is realized by utilizing the cooperation of the computer and the control box 3.

The working principle is that before construction, the fracturing fibers are quantitatively stored in a storage bin 9, and the storage bin 9 is sealed by a sealing cover 10. The steel plate net 11 is arranged in the storage bin 9, so that the fracturing fibers can be filtered. While being able to prevent frac fiber backlog.

When the construction is started, the control box 3 is provided with the filling amount of the fracturing fibers, the variable frequency conveying auger 4 is started, the fracturing fibers are quantitatively conveyed into the dispersing cylinder 16 after entering the variable frequency conveying auger 4 through the feed opening 5, and when the variable frequency conveying auger 4 runs, the stirring blades 7 rotate to stir the fracturing fibers in the storage box 19, so that the fracturing fibers are convenient to feed.

The metered amount of frac fibers is fed into the dispersion cylinder 16 through the flexible connection pipe 14, while the water pump 2 is operated to spray water from the water tank 1 through the plurality of nozzles 15 to mix with the frac fibers in the dispersion cylinder 16. The frac fibers are uniformly hydrated and dispersed by the dispersing blades 17 in the dispersing cylinder 16. The hydrated dispersed frac fibers enter a storage bin 19. The soft delivery auger 20 is activated to deliver the dispersed frac fibers and a portion of the water into the mixer truck agitation tank 13. The exit end of the soft conveying auger 20 is provided with kite type dispersing blades 17 so as to increase the spraying area of the fracturing fibers discharged from the exit end of the soft conveying auger 20, and the fracturing fibers are convenient to mix with the liquid in the stirring tank 13 of the sand mixing vehicle. Excess water in the storage tank 19 flows back to the water tank 1 through the return pipe, so that the excessive water can be prevented from being added into the mixer truck stirring tank 13. The water flowing through the return pipe can be recycled, so that the conveying cost of the fracturing fibers is reduced.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a fracturing fiber filling device, including box (18), install control box (3) in box (18), be provided with storage silo (9) in box (18), a serial communication port, storage silo (9) are installed in box (18) through a plurality of weighing sensor (12), the internal rotation of storage silo (9) is connected with stirring vane (7), stirring vane (7) are located storage silo (9) feed opening (5) top, storage silo (9) below is provided with variable frequency and carries auger (4), stirring vane (7) are connected with variable frequency motor drive of variable frequency and carry auger (4), the feed opening (5) of storage silo (9) are fixed with the feed end of variable frequency and carry auger (4) and are linked together, the discharge end of variable frequency and carry auger (4) is fixed with the import end of dispersion cylinder (16) through flexible connection pipe (14), the export of dispersion cylinder (16) is fixed with the import end of storage hopper (19), the export end of storage hopper (19) downside is located the feed opening (20) of delivery auger (20), the import end (1) of water tank (1) is fixed with the water tank (1) of the delivery wagon (1), the delivery wagon (2) is fixed with the import end of the delivery wagon (1), one end of the dispersing cylinder (16) is fixedly communicated with a plurality of nozzles (15), the outlet end of the water pump (2) is fixedly communicated with the plurality of nozzles (15), and the lower end of the storage box (19) is communicated with the water tank (1) through a water return pipe (21).

2. The fracturing fiber filling device according to claim 1, characterized in that a plurality of vibrators (8) are fixedly mounted on the storage bin (9), a steel plate net (11) is fixedly arranged in the storage bin (9), the steel plate net (11) is located above the stirring blades (7), a sealing cover (10) is mounted at the upper end of the storage bin (9), and the vibrators (8) are electrically connected with the control box (3).

3. The fracturing fiber filling device according to claim 1, wherein the shaft end on one side of the stirring blade (7) extends to the outer side of the storage bin (9), the chain wheels (6) are concentrically fixed on the shaft end of the stirring blade (7) on the outer side of the storage bin (9) and the output shaft of the variable frequency motor of the variable frequency conveying auger (4), the two chain wheels (6) are connected through chain transmission, and the variable frequency motor of the variable frequency conveying auger (4) is electrically connected with the control box (3).

4. The fracturing fiber filling device according to claim 1, characterized in that the dispersing cylinder (16) is rotationally connected with dispersing blades (17), a motor is fixed on the dispersing cylinder (16), the dispersing blades (17) are driven by the motor, the motor is electrically connected with the control box (3), the dispersing cylinder (16) is obliquely arranged, the outlet end of the dispersing cylinder (16) is close to the low end of the dispersing cylinder (16), the inlet end of the dispersing cylinder (16) is close to the high end of the dispersing cylinder (16), and the plurality of nozzles (15) are arranged on the high end of the dispersing cylinder (16).

5. The fracturing fiber filling device according to claim 1, wherein the weighing sensor (12), the driving motor of the soft conveying auger (20) and the water pump (2) are electrically connected with the control box (3).

6. A frac fibre filling device according to claim 1, wherein the outlet end of the soft delivery auger (20) is fitted with kite-type dispersion blades (17).

7. A frac fiber filling device according to claim 1, wherein the inlet end of the return pipe (21) is provided with a screen.