Device and process for preparing knotted temporary plugging agent for fracturing

Abstract

The invention discloses a preparation device and process of a knot temporary plugging agent for fracturing, and relates to the technical field of knot temporary plugging agent preparation devices.The preparation device comprises a processing assembly, the processing assembly comprises a supporting bottom plate, a melt extruder is fixed to the top of the supporting bottom plate, a knot tying piece is arranged on one side of the melt extruder, and a sealing piece is fixed to the top of the supporting bottom plate; a feeding shell is embedded in one side of the sealing piece; and the spraying and covering assembly is arranged at the top of the machining assembly. The device has the beneficial effects that through cooperation of the atomization spraying system and the linkage emergency blockage clearing mechanism, the spraying uniformity and the fault response speed are remarkably improved, the problems of slurry accumulation and blockage treatment lag are effectively solved, the bonding strength of a nano coating is guaranteed, the quality defect caused by non-uniform curing is avoided, and the product quality is improved. Meanwhile, linkage of functions of precise spraying and rapid blockage clearing is achieved, and the product percent of pass and preparation efficiency of the temporary plugging agent are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of knot temporary plugging agent preparation devices, in particular to a knot temporary plugging agent preparation device for fracturing and a process thereof. BACKGROUND

[0002] In the fracturing reconstruction operation of oil and gas fields, a knot temporary plugging agent preparation device is needed to precisely form high-strength fiber knots, so as to avoid the influence of loose structure on the pressure-bearing performance of temporary plugging or the adverse effect on the fracture conductivity.

[0003] The existing knot temporary plugging agent preparation device for fracturing has obvious defects in spraying process and anti-blocking treatment. It adopts a single full-coverage spraying mode, which cannot realize the atomization spraying of nano slurry, and lacks a linkage safety mechanism. When blocking occurs, continuous discharging may further expand the blocking failure, causing certain cleaning inconvenience for subsequent cleaning. This double process defect not only affects the adhesion strength of the coating, but also may cause poor solidification due to uneven spraying, or delay production due to untimely emergency treatment, ultimately reducing the product quality and preparation efficiency of the temporary plugging agent. SUMMARY

[0004] In view of the problems existing in the above-mentioned knot temporary plugging agent preparation device for fracturing and process thereof, the present application is proposed.

[0005] Therefore, the problem to be solved by the present application is that the atomization spraying effect is not good, and at the same time, it is not convenient to manually dredge when blocked.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a knot temporary plugging agent preparation device for fracturing, comprising a processing assembly, a support bottom plate, a melt extruder fixed on the top of the support bottom plate, a knotting piece arranged on one side of the melt extruder, a sealing piece fixed on the top of the support bottom plate, and an inlet shell embedded on one side of the sealing piece; and a spraying covering assembly arranged on the top of the processing assembly, comprising a discharging piece fixed on the top of the sealing piece, a transmission piece arranged in the inner cavity of the discharging piece, an inlet piece arranged on one side of the discharging piece, a driving piece arranged on the surface of the transmission piece, a gas bag filling piece fixed on the top of the discharging piece, a limiting piece arranged on the top of the gas bag filling piece, and an atomization spraying piece arranged on the bottom of the transmission piece.

[0007] As a preferred scheme of the knot temporary plugging agent preparation device for fracturing, the knotting piece comprises a fixed vertical plate fixed on the top of the support bottom plate, a servo motor fixed on one side of the fixed vertical plate, and a knotting cam fixed on the output end of the servo motor.

[0008] As a preferred scheme of the preparation device for the knot temporary plugging agent for fracturing, the feeder comprises a feeder pipe fixed to the top of the sealing member, a movable top cover is embedded at the top of the feeder pipe, an inclined communication pipe is fixed to one side of the feeder pipe, and a guide block is fixed to the inner wall of the feeder pipe.

[0009] As a preferred scheme of the preparation device for the knot temporary plugging agent for fracturing, the atomization spraying member comprises a partition plate fixed to the inner wall of the feeder pipe, a flow guide protrusion is fixed to the top of the partition plate, a flow distribution groove is formed in the surface of the partition plate, and an atomization spray head is embedded at the bottom of the partition plate.

[0010] As a preferred scheme of the preparation device for the knot temporary plugging agent for fracturing, the transmission member comprises a third movable rod movably connected to the top of the partition plate, a conical reflector is fixed to the top of the third movable rod, a first movable rod is fixed to the top of the conical reflector, a second movable rod is movably connected to the top of the first movable rod, a sliding guide groove is formed in the surface of the second movable rod, a fixed ring is sleeved on the outer side of the second movable rod, a fixed connecting rod is fixed to the bottom of the fixed ring, a scraping member is fixed to the bottom of the fixed connecting rod, and a small impeller is sleeved on the surface of the first movable rod.

[0011] As a preferred scheme of the preparation device for the knot temporary plugging agent for fracturing, the limiting member comprises a connecting sleeve sleeved on the top of the second movable rod, the connecting sleeve is slidably connected to the inner side of the gas storage shell, a fixed sleeve is sleeved on the top of the connecting sleeve, a connecting branch rod is fixed to the surface of the fixed sleeve, a first contact block is fixed to one side of the connecting branch rod, a fixed frame is fixed to the top of the movable top cover, a sliding rod is slidably connected to the inner wall of the fixed frame, a second contact block matched with the first contact block is fixed to one side of the sliding rod, a plug-in block matched with the limiting buckle is fixed to the other side of the sliding rod, and a return spring is sleeved on the surface of the sliding rod.

[0012] As a preferred scheme of the preparation device for the knot temporary plugging agent for fracturing, the gas bag filling member comprises a gas storage shell fixed to the top of the movable top cover, a top connecting ring is arranged at the top of the gas storage shell, a connecting vertical rod is fixed to the bottom of the top connecting ring, a piston ring is fixed to the bottom of the connecting vertical rod, the piston ring is slidably connected to the inner wall of the gas storage shell, a connecting spring is fixed to the bottom of the piston ring, the connecting spring is fixed to the inner wall of the gas storage shell, the gas bag filling member further comprises a communication hose fixed to one side of the gas storage shell, an inflatable gas bag is fixed to one side of the communication hose, and the connecting spring is sleeved on the surface of the plug-in block.

[0013] As a preferred scheme of the knot temporary plugging agent preparation device for fracturing, the driving member comprises a buoyancy disc sleeved on the surface of the second movable rod, the top of the buoyancy disc is fixed with a sliding sleeve, the bottom of the sliding sleeve is fixed to the connecting sleeve, the inner wall of the sliding sleeve is fixed with a sliding guide hole, and the surface of the sliding sleeve is fixed with a driving water wheel.

[0014] As a preferred scheme of the knot temporary plugging agent preparation device for fracturing, the feeding member comprises a valve body fixed to the top of the inclined communication pipe, one side of the valve body is embedded with a movable cross rod, one side of the movable cross rod is movably connected with a second connecting rod, the top of the connecting sleeve is movably connected with the second connecting rod, the other side of the movable cross rod is movably connected with a first connecting rod, one side of the first connecting rod is movably connected with a rotating valve plate, the rotating valve plate is rotatably connected to the inner wall of the valve body, and the inner wall of the valve body is fixed with a limiting protrusion matched with the rotating valve plate.

[0015] A process method of a knot temporary plugging agent preparation device for fracturing comprises the following steps. The user melts the raw materials through the melt extruder, the servo motor drives the knotting cam to knot the wire-shaped material, the knotted material falls into the bottom of the closed part through the feeding shell after knotting, the barium sulfate nanometer glue material enters the discharging pipe through the valve body and the inclined communication pipe, the small impeller drives the conical reflecting disc to rotate under the action of gravity, the fluid is uniformly scattered to the top of the partition plate, and the knotted material is sprayed through the atomizing nozzle after being shunted through the flow guide protrusion. If the discharging pipe is blocked, the accumulated slurry pushes the buoyancy disc to move upwards, drives the sliding sleeve and the second connecting rod to close the rotating valve plate, and stops feeding, at the same time, the connecting sleeve moves upwards to remove the limiting of the top connecting ring, the inflatable air bag shrinks, the plug-in block is separated from the limiting buckle, and the movable top cover can be manually opened to dredge the blockage. When cleaning, the pressurized cleaning liquid impacts the driving water wheel, drives the scraping part to scrape the inner wall of the closed part, and improves the cleaning effect.

[0016] The knot temporary plugging agent preparation device for fracturing has the advantages that through the cooperation of the atomizing spraying system and the linkage emergency unblocking mechanism, the spraying uniformity and the fault response speed are significantly improved, the problems of slurry accumulation and blockage processing lag are effectively solved, the combination strength of the nanometer coating is guaranteed, quality defects caused by uneven solidification are avoided, the functions of precise spraying and rapid unblocking are linked, and the product qualified rate and the preparation efficiency of the temporary plugging agent are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 Structure diagram of the device for preparing the knot temporary plugging agent for fracturing.

[0019] Figure 2 Structure diagram of the spraying part and the discharging part of the device for preparing the knot temporary plugging agent for fracturing.

[0020] Figure 3 Structure diagram of the air bag filling part and the limiting part of the device for preparing the knot temporary plugging agent for fracturing.

[0021] Figure 4 Structure diagram of the limiting part and the feeding part of the device for preparing the knot temporary plugging agent for fracturing.

[0022] Figure 5 Structure diagram of the driving part of the device for preparing the knot temporary plugging agent for fracturing.

[0023] Figure 6 Device for preparing the knot temporary plugging agent for fracturing Figure 3 Enlarged view of the middle A.

[0024] Figure 7 Structure diagram of the transmission part of the device for preparing the knot temporary plugging agent for fracturing.

[0025] In the figure: 1, processing assembly; 11, support bottom plate; 12, melt extruder; 13, knotting piece; 13-1, fixed vertical plate; 13-2, servo motor; 13-3, knotting cam; 14, sealing piece; 15, feeding shell; 2, spraying covering assembly; 21, blanking piece; 21-1, blanking pipe; 21-2, movable top cover; 21-3, limiting snap ring; 21-4, inclined communication pipe; 21-5, guide block; 22, air bag filling piece; 22-1, gas storage shell; 22-2, communication hose; 22-3, top connecting ring; 22-4, connecting vertical rod; 22-5, piston ring; 22-6, connecting spring; 22-7, inflatable air bag; 23, limiting piece; 23-1, fixed sleeve; 23-2, connecting branch; 23-3, first contact block; 23-4, sliding rod; 23-5, plug-in block; 23-6, fixed frame; 23-7, connecting sleeve; 23-8, second contact block; 23-9, reset spring; 24, feeding piece; 24-1, valve body; 24-2, limiting protrusion; 24-3, rotating valve plate; 24-4, first connecting rod; 24-5, movable cross rod; 24-6, second connecting rod; 25, driving piece; 25-1, sliding sleeve; 25-2, driving water wheel; 25-3, sliding guide hole; 25-4, buoyancy disc; 26, atomizing spraying piece; 26-1, partition plate; 26-2, flow guide protrusion; 26-3, flow dividing groove; 26-4, atomizing nozzle; 27, transmission piece; 27-1, first movable rod; 27-2, second movable rod; 27-3, sliding guide groove; 27-4, fixed ring; 27-5, fixed connecting rod; 27-6, small impeller; 27-7, scraping piece; 27-8, third movable rod; 27-9, conical reflecting disc. DETAILED DESCRIPTION

[0026] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0027] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0028] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments. Embodiment 1

[0029] Reference Figure 1 andFigure 2 For the first embodiment of the present application, the embodiment provides a knot temporary plugging agent preparation device for fracturing and a process thereof, and the knot temporary plugging agent preparation device for fracturing comprises a processing assembly 1 and a spraying covering assembly 2.

[0030] Through the cooperation of the processing assembly 1 and the spraying covering assembly 2, the spraying uniformity and the fault response speed are significantly improved, the slurry accumulation and the plugging processing lag problem are effectively solved, the combination strength of the nano coating is guaranteed, the quality defects caused by uneven solidification are avoided, the functions of precise spraying and rapid unblocking are realized, and the product qualified rate and the preparation efficiency of the temporary plugging agent are greatly improved.

[0031] Specifically, the processing assembly 1 comprises a support bottom plate 11, a melting extruder 12 is fixed at the top of the support bottom plate 11, a knotting member 13 is arranged on one side of the melting extruder 12, a sealing member 14 is fixed at the top of the support bottom plate 11, and a feeding shell 15 is embedded on one side of the sealing member 14.

[0032] The feeding shell 15 adopts an inclined flow guide design, can efficiently and stably transport the knotted materials, the smooth flow channel structure in the feeding shell 15 can effectively reduce the material friction resistance, ensure the smooth sliding of the knotted filament materials, and through the accurate angle setting, uniform feeding can be realized, and material accumulation or jamming can be avoided.

[0033] Specifically, the spraying covering assembly 2 is arranged at the top of the processing assembly 1 and comprises a discharging member 21 fixed at the top of the sealing member 14, a transmission member 27 arranged in the inner cavity of the discharging member 21, a feeding member 24 arranged on one side of the discharging member 21, a driving member 25 arranged on the surface of the transmission member 27, a gas bag filling member 22 fixed at the top of the discharging member 21, a limiting member 23 arranged at the top of the gas bag filling member 22, and an atomizing spraying member 26 arranged at the bottom of the transmission member 27.

[0034] The gas bag filling member 22 can provide a reinforcing effect for the use of the limiting member 23, when the gas bag filling member 22 is not inflated, the limiting member 23 relies on the friction resistance to limit and lock the top of the discharging member 21, and when it is inflated, the tightness of the connection part is increased to improve the connection limiting effect of the main body. Embodiment 2

[0035] Reference Figures 2-7 For the second embodiment of the present application, the embodiment is based on the previous embodiment.

[0036] Specifically, the knotting member 13 comprises a fixed vertical plate 13-1 fixed at the top of the support bottom plate 11, a servo motor 13-2 fixed on one side of the fixed vertical plate 13-1, and a knotting cam 13-3 fixed at the output end of the servo motor 13-2.

[0037] Specifically, the blanking piece 21 comprises a blanking pipe 21-1 fixed to the top of the sealing piece 14, the top of the blanking pipe 21-1 is embedded with a movable top cover 21-2, one side of the blanking pipe 21-1 is fixed with an inclined communication pipe 21-4, and the inner wall of the blanking pipe 21-1 is fixed with a guide block 21-5.

[0038] The guide block 21-5 can precisely guide the nano slurry, and the slurry falling through the specially designed inclined surface structure is concentrated and guided to the fixed impact position, so that the dispersed slurry flow forms a convergent impact force under the action of the guide block 21-5.

[0039] Specifically, the atomizing and spraying piece 26 comprises a partition plate 26-1 fixed to the inner wall of the blanking pipe 21-1, the top of the partition plate 26-1 is fixed with a flow guide protrusion 26-2, the surface of the partition plate 26-1 is provided with a flow dividing groove 26-3, and the bottom of the partition plate 26-1 is embedded with an atomizing nozzle 26-4.

[0040] The flow guide protrusion 26-2 forms equidistantly distributed flow guide rails on the surface of the partition plate 26-1, and these precisely designed protrusion structures can effectively guide the sputtering and rebounding slurry, and through the guiding action of the slide rails, the slurry is uniformly diffused in a radial manner to the entire inner cavity of the flow dividing groove 26-3, the cross-sectional shape and height of each flow guide rail are optimized and calculated to ensure that the slurry flow maintains a stable flow rate and direction, and finally the atomizing nozzle 26-4 obtains uniformly distributed slurry supply, and stable atomizing and spraying effect is realized.

[0041] Specifically, the transmission piece 27 comprises a third movable rod 27-8 movably connected to the top of the partition plate 26-1, a conical reflecting disc 27-9 fixed to the top of the third movable rod 27-8, a first movable rod 27-1 fixed to the top of the conical reflecting disc 27-9, a second movable rod 27-2 movably connected to the top of the first movable rod 27-1, a sliding guide groove 27-3 formed in the surface of the second movable rod 27-2, a fixed ring 27-4 sleeved on the outer side of the second movable rod 27-2, a fixed connecting rod 27-5 fixed to the bottom of the fixed ring 27-4, a scraping piece 27-7 fixed to the bottom of the fixed connecting rod 27-5, and a small impeller 27-6 sleeved on the surface of the first movable rod 27-1.

[0042] The first movable rod 27-1 and the second movable rod 27-2 are movably connected through a one-way bearing, so that in the process of the first movable rod 27-1, the second movable rod 27-2 will not hinder it, and it is avoided that the heavier counterweight causes the slurry with smaller impact force to be unable to drive the first movable rod 27-1 through the small impeller 27-6.

[0043] Specifically, the limiting piece 23 comprises a connecting sleeve 23-7 sleeved on the top of the second movable rod 27-2, the connecting sleeve 23-7 is slidingly connected to the inner side of the gas storage shell 22-1, the top of the connecting sleeve 23-7 is sleeved with a fixing sleeve 23-1, the surface of the fixing sleeve 23-1 is fixedly provided with a connecting branch 23-2, one side of the connecting branch 23-2 is fixedly provided with a first contact block 23-3, the top of the movable top cover 21-2 is fixedly provided with a fixing frame 23-6, the inner wall of the fixing frame 23-6 is slidingly connected with a sliding rod 23-4, one side of the sliding rod 23-4 is fixedly provided with a second contact block 23-8 matched with the first contact block 23-3, the other side of the sliding rod 23-4 is fixedly provided with an insertion block 23-5 matched with the limiting snap ring 21-3, and the surface of the sliding rod 23-4 is sleeved with a reset spring 23-9.

[0044] Specifically, the air bag filling piece 22 comprises the gas storage shell 22-1 fixedly arranged on the top of the movable top cover 21-2, the top of the gas storage shell 22-1 is provided with a top connecting ring 22-3, the bottom of the top connecting ring 22-3 is fixedly provided with a connecting vertical rod 22-4, the bottom of the connecting vertical rod 22-4 is fixedly provided with a piston ring 22-5, the piston ring 22-5 is slidingly connected to the inner wall of the gas storage shell 22-1, the bottom of the piston ring 22-5 is fixedly provided with a connecting spring 22-6, the connecting spring 22-6 is fixedly arranged on the inner wall of the gas storage shell 22-1, and the air bag filling piece 22 further comprises the communication hose 22-2 fixedly arranged on one side of the gas storage shell 22-1, one side of the communication hose 22-2 is fixedly provided with an inflatable air bag 22-7, and the connecting spring 22-6 is sleeved on the surface of the insertion block 23-5.

[0045] The air bag filling piece 22 can provide reinforcing support effect for the limiting piece 23, when the air bag filling piece 22 is not inflated, the limiting piece 23 relies on its own friction resistance to perform basic limiting locking on the movable top cover 21-2 on the top of the discharging piece 21, when the air bag filling piece 22 is inflated, the internal pressure thereof can push the insertion block 23-5 to tightly abut against the joint surface of the limiting snap ring 21-3, the contact pressure and tightness at the connecting position are increased, and the connecting strength and limiting stability between the limiting piece 23 and the discharging piece 21 are significantly improved, the double limiting mechanism can not only ensure reliable fixing in the normal state, but also provide additional reinforcing effect when needed.

[0046] Specifically, the driving piece 25 comprises a buoyancy disc 25-4 sleeved on the surface of the second movable rod 27-2, the top of the buoyancy disc 25-4 is fixedly provided with a sliding sleeve 25-1, the sliding sleeve 25-1 is fixedly arranged on the bottom of the connecting sleeve 23-7, the inner wall of the sliding sleeve 25-1 is fixedly provided with a sliding guide hole 25-3, and the surface of the sliding sleeve 25-1 is fixedly provided with a driving water wheel 25-2.

[0047] The drive water wheel 25-2 and the buoyancy plate 25-4 are integrally molded from lightweight composite materials. This special design allows the components to respond quickly to rotation when impacted by pressurized cleaning fluid, and to sensitively float and trigger the protection mechanism when nano-slurry accumulates. The lightweight structure effectively reduces the inertial resistance of moving parts, ensuring that the transmission component 27 can respond to fluid changes in real time. This ensures that the drive water wheel 25-2 rotates efficiently to drive the scraper component 27-7 during cleaning, and also achieves the dual function of the buoyancy plate 25-4 quickly floating and interlocking with the valve body 24-1 to close when blocked.

[0048] Specifically, the feed component 24 includes a valve body 24-1 fixed to the top of the inclined connecting pipe 21-4. A movable crossbar 24-5 is embedded on one side of the valve body 24-1. A second connecting rod 24-6 is movably connected to one side of the movable crossbar 24-5. The second connecting rod 24-6 is movably connected to the top of the connecting sleeve 23-7. A first connecting rod 24-4 is movably connected to the other side of the movable crossbar 24-5. A rotating valve plate 24-3 is movably connected to one side of the first connecting rod 24-4. The rotating valve plate 24-3 is rotatably connected to the inner wall of the valve body 24-1. A limiting protrusion 24-2 that cooperates with the rotating valve plate 24-3 is fixed to the inner wall of the valve body 24-1.

[0049] The limiting protrusion 24-2 is made of wear-resistant alloy material. Its specially designed protrusion structure provides precise mechanical limiting during the rotation of the rotating valve plate 24-3. When the rotating valve plate 24-3 rotates to the open position, the limiting protrusion 24-2 is in close contact with the opening limiting surface of the inner wall of the valve body 24-1, ensuring that the passage of the valve body 24-1 is completely unobstructed. When the rotating valve plate 24-3 rotates to the closed position, the limiting protrusion 24-2 precisely matches the closing limiting surface, achieving complete sealing of the passage of the valve body 24-1. This dual limiting design not only ensures the reliability of fluid control, but also effectively prevents damage to the valve assembly caused by over-rotation. Example 3

[0050] According to Figures 1-7 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0051] Specifically, it also includes the following process methods: In use, the user melts and extrudes the raw materials through the melt extruder 12, and then starts the servo motor 13-2 through the external controller, the servo motor 13-2 drives the knot cam 13-3 to knot the knotted material, and then the material falls to the bottom of the inner cavity of the sealing part 14 through the feeding shell 15, and then the user connects the barium sulfate nanometer glue outlet equipment to discharge the material, and the material enters the inner cavity of the discharge pipe 21-1 through the valve body 24-1 and the inclined communication pipe 21-4, because only the action of gravitational potential energy, so it will not have a strong impact on the driving part 25, but only under the guidance of the guide block 21-5, the small impeller 27-6 is driven, and the small impeller 27-6 drives the conical reflecting disc 27-9 to rotate.

[0052] The conical reflecting disc 27-9 uniformly scatters the falling fluid by sputtering and rebounding on the top of the partition plate 26-1, and then falls into the inner cavity of the flow distribution groove 26-3 through the flow guide protrusion 26-2, and then uniformly falls through the atomizing nozzle 26-4, and then uniformly atomizes and sprays the knotted material, so as to improve the coverage rate of the nanometer slurry.

[0053] If the inner cavity of the discharge pipe 21-1 is accidentally blocked during the conventional atomizing and spraying process, the accumulated nanometer slurry will be driven by the buoyancy disc 25-4 to move upward with the sliding sleeve 25-1, so as to drive the connecting sleeve 23-7 to move upward with the second connecting rod 24-6, and the first connecting rod 24-4 drives the rotating valve plate 24-3 through the movable cross rod 24-5 to drive the rotating valve plate 24-3 to rotate and close, so as to close the valve body 24-1, and avoid the problem of expanding the fault caused by the continuous flow of fluid.

[0054] During the upward movement of the connecting sleeve 23-7, the top connecting ring 22-3 is first released from the limiting position, so that it is driven upward by the piston ring 22-5 and the connecting vertical rod 22-4 under the action of the elastic force generated by the restoring deformation of the connecting spring 22-6, so that the gas in the inner cavity of the tight and expanded inflatable air bag 22-7 is reconnected to the inner cavity of the gas storage shell 22-1 through the communication hose 22-2 under the action of negative pressure, and the inflatable air bag 22-7 is contracted.

[0055] When the inflatable air bag 22-7 is deflated, the joint between the insertion block 23-5 and the limiting buckle 21-3 is connected with reduced tightness, at this time, the connecting sleeve 23-7 will drive the connecting support 23-2 to move through the fixing sleeve 23-1, thereby driving the first contact block 23-3 to extrude the second contact block 23-8, the second contact block 23-8 is extruded and drives the insertion block 23-5 to fall off from the inner cavity of the limiting buckle 21-3, thereby releasing the limiting of the movable top cover 21-2, then the user lifts the movable top cover 21-2 to unlock it, then reaches into the inner cavity of the discharge pipe 21-1, drives the transmission member 27 by manually rotating the driving member 25 to stir and dredge the blockage.

[0056] When the device needs to be cleaned after the running cycle is over, the user can connect the pressurized cleaning liquid outlet pipe through the valve body 24-1, the pressurized cleaning liquid enters the inner cavity of the discharge pipe 21-1 through the inclined communication pipe 21-4, because of the pressurized injection, the impact force is large, which will impact the driving water wheel 25-2, so that the driving water wheel 25-2 drives the sliding guide hole 25-3 to rotate through the sliding sleeve 25-1, the sliding guide hole 25-3 drives the fixing ring 27-4 to rotate through the clamping sliding guide groove 27-3, thereby driving the scraping member 27-7 to scrape the inner wall of the sealing member 14 through the fixed connecting rod 27-5, thereby improving the cleaning effect.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A device for making a knot temporary plugging agent for fracturing, characterized in that: The utility model relates to a processing assembly (1), including support base plate (11), the top of support base plate (11) is fixed with melt extruder (12), one side of melt extruder (12) is provided with knotter (13), the top of support base plate (11) is fixed with airtight member (14), one side of airtight member (14) is embedded with feed shell (15), and the processing assembly (1) is provided with spraying covering assembly (2) on the top of processing assembly (1), including fixed in airtight member (14) top's blanking piece (21), the inner chamber of blanking piece (21) is provided with transmission part (27), one side of blanking piece (21) is provided with feed piece (24), the surface of transmission part (27) is provided with drive part (25), the top of blanking piece (21) is fixed with air bag filling piece (22), the top of air bag filling piece (22) is provided with limiting piece (23), the bottom of transmission part (27) is provided with atomization spraying piece (26). The knotter (13) includes a fixed vertical plate (13-1) fixed to the top of the support base plate (11), one side of the fixed vertical plate (13-1) is fixed with a servo motor (13-2), and the output end of the servo motor (13-2) is fixed with a knot cam (13-3). The blanking piece (21) includes a blanking pipe (21-1) fixed to the top of the airtight member (14), the top of the blanking pipe (21-1) is embedded with a movable top cover (21-2), one side of the blanking pipe (21-1) is fixed with an inclined communication pipe (21-4), and the inner wall of the blanking pipe (21-1) is fixed with a guide block (21-5).

2. The apparatus for preparing a frac-sand plug agent as claimed in claim 1, wherein: The atomization spraying piece (26) includes a partition plate (26-1) fixed to the inner wall of the blanking pipe (21-1), the top of the partition plate (26-1) is fixed with a flow guide protrusion (26-2), the surface of the partition plate (26-1) is provided with a flow dividing groove (26-3), and the bottom of the partition plate (26-1) is embedded with an atomization spray head (26-4).

3. The apparatus of claim 2, wherein: The transmission part (27) includes a third movable rod (27-8) movably connected to the top of the partition plate (26-1), the top of the third movable rod (27-8) is fixed with a conical reflector (27-9), the top of the conical reflector (27-9) is fixed with a first movable rod (27-1), the top of the first movable rod (27-1) is movably connected with a second movable rod (27-2), the surface of the second movable rod (27-2) is provided with a sliding guide groove (27-3), the outer side of the second movable rod (27-2) is sleeved with a fixed ring (27-4), the bottom of the fixed ring (27-4) is fixed with a fixed connecting rod (27-5), the bottom of the fixed connecting rod (27-5) is fixed with a scraping piece (27-7), and the surface of the first movable rod (27-1) is sleeved with a small impeller (27-6).

4. The apparatus of claim 3, wherein: ​ 5. The apparatus of claim 4, wherein: ​ 6. The apparatus of claim 5, wherein: The limiting piece (23) comprises a connecting sleeve (23-7) sleeved on the top of the second movable rod (27-2), the connecting sleeve (23-7) is slidably connected to the inner side of the gas storage shell (22-1), the top of the connecting sleeve (23-7) is sleeved with a fixing sleeve (23-1), the surface of the fixing sleeve (23-1) is fixedly provided with a connecting branch rod (23-2), one side of the connecting branch rod (23-2) is fixedly provided with a first contact block (23-3), the top of the movable top cover (21-2) is fixedly provided with a fixing frame (23-6), the inner wall of the fixing frame (23-6) is slidably connected with a sliding rod (23-4), one side of the sliding rod (23-4) is fixedly provided with a second contact block (23-8) matched with the first contact block (23-3), the other side of the sliding rod (23-4) is fixedly provided with an insertion block (23-5) matched with the limiting snap ring (21-3), the surface of the sliding rod (23-4) is sleeved with a reset spring (23-9).

7. The apparatus of claim 6, wherein: The gas bag filling piece (22) comprises a gas storage shell (22-1) fixed on the top of the movable top cover (21-2), the top of the gas storage shell (22-1) is provided with a top connecting ring (22-3), the bottom of the top connecting ring (22-3) is fixedly provided with a connecting vertical rod (22-4), the bottom of the connecting vertical rod (22-4) is fixedly provided with a piston ring (22-5), the piston ring (22-5) is slidably connected to the inner wall of the gas storage shell (22-1), the bottom of the piston ring (22-5) is fixedly provided with a connecting spring (22-6), the connecting spring (22-6) is fixed to the inner wall of the gas storage shell (22-1), the gas bag filling piece (22) further comprises a communication hose (22-2) fixed on one side of the gas storage shell (22-1), one side of the communication hose (22-2) is fixedly provided with an inflatable air bag (22-7), the connecting spring (22-6) is sleeved on the surface of the insertion block (23-5).

8. The apparatus of claim 7, wherein: The driving piece (25) comprises a buoyancy disc (25-4) sleeved on the surface of the second movable rod (27-2), the top of the buoyancy disc (25-4) is fixedly provided with a sliding sleeve (25-1), the sliding sleeve (25-1) is fixed to the bottom of the connecting sleeve (23-7), the inner wall of the sliding sleeve (25-1) is fixedly provided with a sliding guide hole (25-3), the surface of the sliding sleeve (25-1) is fixedly provided with a driving water wheel (25-2).

9. The apparatus of claim 8, wherein: The feeding piece (24) comprises a valve body (24-1) fixed at the top of the inclined communication pipe (21-4), one side of the valve body (24-1) is embedded with a movable cross bar (24-5), one side of the movable cross bar (24-5) is movably connected with a second connecting rod (24-6), the second connecting rod (24-6) is movably connected at the top of a connecting sleeve (23-7), the other side of the movable cross bar (24-5) is movably connected with a first connecting rod (24-4), one side of the first connecting rod (24-4) is movably connected with a rotating valve plate (24-3), the rotating valve plate (24-3) is rotatably connected to the inner wall of the valve body (24-1), and the inner wall of the valve body (24-1) is fixed with a limiting protrusion (24-2) matched with the rotating valve plate (24-3).

10. The apparatus for preparing a knot temporary plugging agent for fracturing and its process according to claim 9, characterized in that: The preparation device of the knot temporary plugging agent comprises the preparation device of the knot temporary plugging agent, and the preparation device of the knot temporary plugging agent comprises the preparation device of the knot temporary plugging agent. The user melts the raw materials through the melt extruder (12), the servo motor (13-2) drives the knot cam (13-3) to knot the wire-shaped material, the knotted material falls into the bottom of the closed piece (14) through the feeding shell (15) after knotting, the barium sulfate nanometer glue passes through the valve body (24-1) and the inclined communication pipe (21-4) into the feeding pipe (21-1), and under the action of gravity, the small impeller (27-6) drives the conical reflecting disc (27-9) to rotate, uniformly scatters the fluid to the top of the partition plate (26-1), and sprays the knotted material through the atomizing nozzle (26-4) after being shunted through the flow guide protrusion (26-2); If the feeding pipe (21-1) is blocked, the accumulated slurry pushes the buoyancy disc (25-4) to move upwards, drives the sliding sleeve (25-1) and the second connecting rod (24-6) to close the rotating valve plate (24-3), stops feeding, at the same time, the connecting sleeve (23-7) moves upwards to release the limiting of the top connecting ring (22-3), the inflatable air bag (22-7) shrinks, the plug-in block (23-5) is separated from the limiting buckle (21-3), and the movable top cover (21-2) can be manually opened to dredge the blockage; When cleaning, the pressurized cleaning liquid impacts the water wheel (25-2), drives the scraping piece (27-7) to scrape the inner wall of the closed piece (14), and improves the cleaning effect.

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