Intelligent self-control type tracer agent automatic injection device for fracturing

Abstract

The invention relates to the technical field of oil and gas field exploitation, and discloses an intelligent self-control tracer agent automatic injection device for fracturing, which comprises two liquid storage tanks, a supporting assembly is arranged at the bottoms of the two liquid storage tanks, a mixing tank is mounted on the top side of the middle part of the supporting assembly, and a stirring assembly is arranged in the mixing tank. A communication valve is installed at the bottom of the mixing tank, an injection pipe is installed at the end, away from the mixing tank, of the communication valve, an outer pipe is installed on the periphery of the injection pipe, a heating assembly is installed on one side of the outer pipe, and protection assemblies are arranged at the left end and the right end of the periphery of the injection pipe correspondingly. A power generator is installed on the side, close to the liquid storage tank, of the supporting assembly. The device can adapt to different viscosities, flow velocities and concentrations through the stirring assembly and the adjusting assembly, swelling deformation generated during injection of the injection pipe can be reduced through the protection assembly, and the phenomenon that a tracer agent and fracturing fluid crystallize when the tracer agent and the fracturing fluid are conveyed can be avoided through the heating assembly.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas field exploitation, in particular to an intelligent self-controlled tracer automatic injection device for fracturing. Background Art

[0002] Fracking is an oil and gas extraction technology, the full name is "hydraulic fracturing", usually referred to as "fracking". It injects high-pressure liquid (usually a mixture of water, sand and a small amount of chemical additives) into underground rock formations to open or expand cracks in the rock. The purpose of this is to make it easier for oil and gas to be released from the rock and exported to the ground through drilling. A tracer is a chemical or radioactive substance used to track or monitor a specific process or substance. By injecting or adding a tracer to a system, it can help scientists or engineers observe its flow, diffusion, reaction and other behaviors in the system, so as to understand certain processes that are difficult to observe directly.

[0003] The existing tracer injection technology for fracturing mainly tracks and monitors the distribution and flow of fracturing fluid in the reservoir by mixing tracers and fracturing fluid during oil and gas production. This mixed injection process not only helps engineers analyze the expansion path of fracturing fluid underground, but also evaluates the injection effect in different formation areas, thereby optimizing fracturing technology and resource recovery.

[0004] However, in the prior art, the injection device needs to mix the tracer with the fracturing fluid by mechanical stirring before injection. This design can achieve a basic mixing effect under the conditions of stable flow rate and pressure, but it has significant shortcomings in complex fracturing environments. When the fluid viscosity is high, the flow rate varies greatly, or the tracer concentration is high, the mixing effect is uneven, which can easily lead to uneven distribution of the tracer in the fracturing fluid. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an intelligent self-controlled tracer automatic injection device for fracturing, which solves the problem that the injection device in the prior art has uneven mixing effect when the fluid viscosity is high, the flow rate changes greatly, or the tracer concentration is high, which easily leads to uneven distribution of the tracer in the fracturing fluid.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent self-controlled tracer automatic injection device for fracturing, comprising two liquid storage tanks, support assemblies are provided at the bottom of the two liquid storage tanks, a mixing tank is installed on the middle top side of the support assembly, a stirring assembly is provided inside the mixing tank, a connecting valve is installed at the bottom of the mixing tank, an injection pipe is installed at the end of the connecting valve away from the mixing tank, an outer pipe is installed on the periphery of the injection pipe, a heating assembly is installed on one side of the outer pipe, protective assemblies are provided on both left and right ends of the periphery of the injection pipe, and a generator is installed on the side of the support assembly close to the liquid storage tank; The stirring assembly includes a stirring motor, which is fixedly connected to the top of the mixing tank, and a connecting frame is fixedly connected to the outer periphery of the output end of the stirring motor, and a plurality of evenly distributed connecting rods are fixedly connected to the side of the connecting frame away from the stirring motor, and a plurality of connecting rods are fixedly connected to a gear ring on the side away from the stirring motor, and a bottom plate is fixedly connected to the side of the gear ring away from the plurality of connecting rods, and a gear 1 is fixedly connected to the output end of the stirring motor, and two stirring rods are rotatably connected to the inside of the mixing tank away from the stirring motor, and the tops of the two stirring rods are fixedly connected to gear 2, and the gear 2 is meshed with the gear 1 and the gear ring, and the outer peripheries of the two stirring rods are rotatably connected to a plurality of stirring blades evenly distributed in a straight line, and an adjusting assembly is provided at one end of the stirring blade close to the stirring rod, and connecting pipes are fixedly connected to the tops of the left and right sides of the mixing tank, and a delivery pump is installed at the bottom of the two liquid storage tanks.

[0007] Preferably, the protective component includes an arcuate plate, which is slidably connected to the outer periphery of the outer tube, and a connecting block 1 is fixedly connected to the side of the arcuate plate away from the outer tube, and a limiting component 1 is provided on the upper and lower sides of the connecting block 1, and the front and rear ends of the connecting block 1 away from the arcuate plate are rotatably connected to rotating rods, and the two rotating rods are rotatably connected to connecting block 2 at one end away from the connecting block 1, and the two connecting blocks 2 are fixedly connected to driving arms on the sides away from the two rotating rods, and the two driving arms are fixedly connected to slides on the upper and lower sides, and a cross plate is slidably connected to the outer periphery of the side of the slide away from the driving arm, and a slide rod is slidably connected to the inside of the slide, and one side of the slide is fixedly connected to spring 2.

[0008] Preferably, the heating assembly includes a controller, which is fixedly connected to the outer periphery of the outer tube, a heating belt is fixedly connected to the side of the controller close to the outer tube, a mounting ring is slidably connected to the outer periphery of the injection tube, a plurality of evenly distributed heating rods are fixedly connected to the interior of the mounting ring, and fixing bolts are threadedly connected to the left and right sides of the bottom of the mounting ring.

[0009] Preferably, the support assembly includes a support plate 1, a support frame 1 is installed at the bottom of the support plate 1, a support frame 2 is installed at the bottom of the support frame 1, and a support plate 2 is installed at the bottom of the support frame 2.

[0010] Preferably, the adjusting assembly includes a rotating rod, which is fixedly connected to a side of the stirring blade close to the stirring rod, an end of the rotating rod away from the stirring blade is fixedly connected to a rotating block 1, a movable block is slidably connected inside the rotating block 1, and a limit assembly 2 is provided on both the front and rear sides of the movable block, a movable rod is rotatably connected inside the movable block, an end of the movable rod away from the rotating block 1 is fixedly connected to a limit plate, a side of the limit plate close to the movable rod is fixedly connected to a spring 1, and a rotating block 2 is slidably connected to the outer periphery of the limit plate.

[0011] Preferably, the limit assembly 1 includes a limit block 1, the limit block 1 is fixedly connected to one side of the connecting block 1, the connecting block 1 is slidably connected to the inner middle side of the support plate 2, and the support plate 2 has a limit groove 1 on both the upper and lower sides thereof, and the limit block 1 is slidably connected to the inside of one of the limit grooves 1.

[0012] Preferably, the two liquid storage tanks are respectively fixedly connected to the left and right ends of the side of the support plate one away from the support frame one, the mixing tank is fixedly connected to the side of the support plate two close to the support plate one, and the outer tube is slidably connected to the middle part of the support plate two.

[0013] Preferably, the second limiting component includes a second limiting block, which is fixedly connected to one side of the movable block, and the first rotating block is provided with two limiting grooves on both the front and rear sides thereof, and the second limiting block is slidably connected inside one of the two limiting grooves.

[0014] Preferably, the two delivery pumps are fixedly connected to the tops of the two connecting pipes respectively.

[0015] Preferably, the rotating rod is rotatably connected to the inside of the stirring rod.

[0016] The present invention provides an intelligent self-controlled tracer automatic injection device for fracturing, which has the following beneficial effects: 1. The present invention drives the gear ring to rotate by rotating the connecting frame, so that two stirring rods and multiple stirring blades can mix the tracer and the fracturing fluid, and the gear one, the gear ring and the gear two are meshed, so that when the gear two is respectively meshed with the gear one and the gear ring, the self-rotation directions are different, thereby further making the tracer and the fracturing fluid evenly mixed, and the stirring blades can drive the rotating block one and the rotating block two to rotate, which can adapt to the flow changes of the tracer and the fracturing fluid to ensure that the tracer can be evenly distributed in the fracturing fluid.

[0017] 2. The present invention controls two driving arms to move in opposite directions to squeeze multiple springs 2 through two rotating rods in the protection component. The reaction force provided by the springs 2 can be used to protect the injection pipe and the outer pipe when the injection pipe transmits the mixed tracer and fracturing fluid, thereby preventing the injection pipe and the outer pipe from expanding and deforming, resulting in uneven pressure that affects the uniform delivery of the tracer and the fracturing fluid.

[0018] 3. The present invention can achieve zoned heating through heating belts and heating rods. By surrounding the outer circumference of the injection pipe with the heating belt, the mixed tracer and fracturing fluid can maintain good stability before injection to avoid crystallization and solidification. The heating rod and the controller are connected to the generator to ensure that each zone is controlled separately to achieve uniform heating throughout the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the structure of a mixing tank of the present invention; Figure 3 It is a schematic diagram of the stirring rod structure of the present invention; Figure 4 It is a schematic diagram of the gear ring structure of the present invention; Figure 5 It is a schematic diagram of the rotating rod structure of the present invention; Figure 6 It is a schematic diagram of the structure of the movable block of the present invention; Figure 7 It is a structural schematic diagram of the outer tube of the present invention; Figure 8 It is a schematic diagram of the rotating rod structure of the present invention; Fig. 9 It is a schematic diagram of the heating belt structure of the present invention.

[0020] Among them, 1. liquid storage tank; 2. support assembly; 201. support frame 1; 202. support plate 1; 203. support frame 2; 204. support plate 2; 3. mixing tank; 4. outer tube; 5. injection tube; 6. stirring assembly; 601. stirring motor; 602. connecting frame; 603. gear ring; 604. connecting rod; 605. gear 1; 606. gear 2; 607. bottom plate; 608. stirring rod; 609. stirring blade; 610. connecting pipe; 611. delivery pump; 7. adjustment assembly; 701. rotating rod; 702. rotating block 1; 703. rotating block 2; 704. limit plate; 705. spring 1; 706, movable rod; 707, movable block; 8, protective assembly; 801, arc plate; 802, connecting block 1; 803, sliding rod; 804, spring 2; 805, rotating rod; 806, connecting block 2; 807, driving arm; 808, sliding plate; 809, horizontal plate; 9, heating assembly; 901, controller; 902, heating belt; 903, mounting ring; 904, heating rod; 905, fixing bolt; 10, generator; 11, limit assembly 1; 1101, limit block 1; 1102, limit slot 1; 12, limit assembly 2; 1201, limit block 2; 1202, limit slot 2; 13, connecting valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Please see attached Figure 1 - Attachment Figure 4 The embodiment of the present invention provides an intelligent self-controlled tracer automatic injection device for fracturing, comprising two liquid storage tanks 1, the two liquid storage tanks 1 are used to store tracers and fracturing fluids respectively, support components 2 are provided at the bottom of the two liquid storage tanks 1, a mixing tank 3 is installed on the middle top side of the support component 2, a stirring component 6 is provided inside the mixing tank 3, a connecting valve 13 is installed at the bottom of the mixing tank 3, an injection pipe 5 is installed at one end of the connecting valve 13 away from the mixing tank 3, the connecting valve 13 is used to connect the injection pipe 5 and the mixing tank 3, the injection pipe 5 is used to transport the mixed fracturing fluid and tracer, an outer pipe 4 is installed on the periphery of the injection pipe 5, a heating component 9 is installed on one side of the outer pipe 4, and a protective component 8 is provided on the left and right ends of the injection pipe 5, a generator 10 is installed on the side of the support component 2 close to the liquid storage tank 1, and the generator 10 is connected to the stirring motor 601, the controller 901, and the heating rod 904 by wires to provide power.

[0023] The stirring assembly 6 includes a stirring motor 601, which is fixedly connected to the top of the mixing tank 3. The stirring motor 601 is used to provide driving force and is a YBX3 series flameproof three-phase asynchronous motor. A connecting frame 602 is fixedly connected to the outer periphery of the output end of the stirring motor 601. A plurality of evenly distributed connecting rods 604 are fixedly connected to the side of the connecting frame 602 away from the stirring motor 601. A plurality of connecting rods 604 are fixedly connected to a gear ring 603 on a side away from the stirring motor 601. The connecting frame 602 and the connecting rod 604 are used to transmit motion, so that the stirring motor 601 will control the gear ring 603 to rotate accordingly after starting. A bottom plate 607 is fixedly connected to the side of the gear ring 603 away from the plurality of connecting rods 604. The bottom plate 607 is used to provide supporting force. A gear 1 605 is fixedly connected to the output end of the stirring motor 601. The gear 1 605 is directly connected to the stirring motor 601. After the stirring motor 601 is started, the gear 1 605 is controlled to rotate The mixing tank 3 is movable, and two stirring rods 608 are rotatably connected to the inner side of the mixing tank 3 away from the stirring motor 601. The tops of the two stirring rods 608 are fixedly connected with gear 2 606. Gear 2 606 is meshed with gear 1 605 and gear ring 603. Gear 1 605 and gear ring 603 have only half teeth, which are used to control gear 2 606 to produce special rotation. The outer periphery of the two stirring rods 608 is rotatably connected with a plurality of stirring blades 609 evenly distributed in a straight line. The stirring rods 608 and the stirring blades 609 are used to mix the tracer and the fracturing fluid. The end of the stirring blade 609 close to the stirring rod 608 is provided with an adjusting component 7. The tops of the left and right sides of the mixing tank 3 are fixedly connected with connecting pipes 610. The bottoms of the two liquid storage tanks 1 are installed with delivery pumps 611. The two delivery pumps 611 are respectively fixedly connected to the tops of the two connecting pipes 610. The delivery pumps 611 are used to connect the liquid storage tank 1 with the connecting pipe 610, so that the tracer and the fracturing fluid can enter the mixing tank 3.

[0024] Please see attached Figure 7 - Attachment Figure 8The protective component 8 includes an arc plate 801, which is slidably connected to the outer periphery of the outer tube 4. The arc plate 801 is slidably installed around the outer tube 4. When the outer tube 4 expands and deforms, the arc plate 801 can move accordingly. The side of the arc plate 801 away from the outer tube 4 is fixedly connected with a connecting block 802. The upper and lower sides of the connecting block 802 are provided with a limit assembly 11. The front and rear ends of the connecting block 802 away from the side of the arc plate 801 are rotatably connected with a rotating rod 805. The connecting block 802 is used to transmit movement so that the movement of the arc plate 801 can be transmitted to the rotating rod 805. The two rotating rods 805 are rotatably connected with a connecting block 2 806 at one end away from the connecting block 1 802. The rotating rod 805 is used to be connected with the connecting block 1 802 and the connecting block 2 806. When the connecting block 1 802 moves, the two rotating rods 805 will rotate accordingly and control The connecting block 806 moves, and the two connecting blocks 806 are fixedly connected with a driving arm 807 on one side away from the two rotating rods 805. The driving arm 807 is connected to the connecting block 806. When the connecting block 806 moves, the driving arm 807 will be driven to move. The two driving arms 807 are fixedly connected with slide plates 808 on the upper and lower sides. The slide plates 808 are connected to the driving arms 807 and will move accordingly with the movement of the driving arms 807. The outer periphery of the side of the slide plate 808 away from the driving arms 807 is slidably connected with a cross plate 809. The cross plate 809 is used to protect the slide plate 808 and accommodate the sliding of the slide plate 808. The inside of the slide plate 808 is slidably connected with a slide bar 803. One side of the slide plate 808 is fixedly connected with a spring 2 804. The slide bar 803 is used to guide the movement of the slide plate 808. The spring 2 804 is used to provide a reaction force to reduce the expansion and deformation of the outer tube 4.

[0025] Please see attached Fig. 9 The heating assembly 9 includes a controller 901, which is fixedly connected to the outer periphery of the outer tube 4. A heating belt 902 is fixedly connected to the side of the controller 901 close to the outer tube 4. The controller 901 is fixedly installed on the outer periphery of the outer tube 4 and is mainly responsible for the temperature control of the entire heating belt 902. The heating belt 902 is made of a flexible high thermal conductivity material and has a waterproof insulating coating on the surface to ensure safe operation in a high temperature environment. A mounting ring 903 is slidably connected to the outer periphery of the injection tube 5. A plurality of evenly distributed heating rods 904 are fixedly connected to the inside of the mounting ring 903. Fixing bolts 905 are threadedly connected to the left and right sides of the bottom of the mounting ring 903. The fixing bolts 905 are used to install the mounting ring 903 on the outer periphery of the outer tube 4, and the heating rods 904 are also used to heat the outer tube 4.

[0026] Please see attached Figure 1 - Attachment Figure 2The support assembly 2 includes a support plate 202, a support frame 201 is installed at the bottom of the support plate 202, the support plate 202 and the support frame 201 are mainly used to install two liquid storage tanks 1, a support frame 203 is installed at the bottom of the support frame 201, a support plate 204 is installed at the bottom of the support frame 203, and the support frame 203 and the support plate 204 are mainly used to install the mixing tank 3.

[0027] Please see attached Figure 4 - Attachment Figure 6 The adjusting component 7 includes a rotating rod 701, which is fixedly connected to the side of the stirring blade 609 close to the stirring rod 608, and the rotating rod 701 is rotatably connected to the inside of the stirring rod 608. The rotating rod 701 is connected between the stirring blade 609 and the stirring rod 608, mainly to facilitate the stable rotation of the stirring blade 609. The end of the rotating rod 701 away from the stirring blade 609 is fixedly connected to a rotating block 702, and the rotating block 702 is used to rotate with the stirring blade 609. The interior of the rotating block 702 is slidably connected to a movable block 707, and the front and rear sides of the movable block 707 are both provided with a limit assembly 212. The interior of the movable block 707 is rotatably connected to a movable rod 706, and the movable block 70 7 is rotatably connected with the movable rod 706. When the rotating block 1 702 rotates, the movable block 707 will slide inside the rotating block 1 702 and generate a rotatable connection relationship with the movable rod 706, so that the movable rod 706 rotates and moves. The end of the movable rod 706 away from the rotating block 1 702 is fixedly connected with the limiting plate 704. The side of the limiting plate 704 close to the movable rod 706 is fixedly connected with a spring 1 705. When the movable rod 706 moves, the limiting plate 704 will move together and squeeze the spring 1 705. The outer periphery of the limiting plate 704 is slidably connected with the rotating block 2 703. The rotating block 2 703 is used to be rotatably connected in the stirring rod 608, and is used to cooperate with the stirring blade 609 to rotate.

[0028] Please see attached Figure 6 The limiting component 12 includes a limiting block 1201, which is fixedly connected to one side of the movable block 707. The limiting grooves 1202 are provided on both the front and rear sides of the rotating block 702. The limiting block 1201 is slidably connected to the inside of one of the limiting grooves 1202. The limiting block 1201 is used in conjunction with the limiting groove 1202. The sliding distance of the rotating block 702 can be controlled by sliding the limiting block 1201 in the limiting groove 1202.

[0029] Please see attached Figure 7 - Attachment Figure 8The limit assembly 11 includes a limit block 1101, which is fixedly connected to one side of the connecting block 802, and the connecting block 802 is slidably connected to the inner middle side of the supporting plate 204. The upper and lower sides of the inner side of the supporting plate 204 are provided with limit slots 1102, and the limit block 1101 is slidably connected to the inside of one of the limit slots 1102. The limit block 1101 is used in conjunction with the limit slot 1102. By sliding the limit block 1101 in the limit slot 1102, the moving range of the connecting block 802 is limited to prevent the connecting block 802 from moving excessively.

[0030] Working principle: before injecting the tracer and the fracturing fluid into the well, the tracer and the fracturing fluid need to be mixed, and the injection pipe 5 is connected to the automatic injection pipeline, and then the two delivery pumps 611 are started to make the fracturing fluid and the tracer enter the mixing tank 3 according to a certain ratio, and then the stirring motor 601 is started. The stirring motor 601 controls the connection frame 602 to rotate. When the connection frame 602 rotates, it will drive the gear ring 603 to rotate horizontally through the connecting rod 604. When the gear ring 603 rotates horizontally, the gear 1 605 directly connected to the output end of the stirring motor 601 will rotate accordingly and rotate with the gear 1 The gear 2 606 meshing with the gear 1 605 will produce a corresponding reverse rotation. Since the stirring motor 601 is a gear with only half teeth, when the gear 2 606 is disengaged from the gear 1 605, it will stop rotating and rotate in the direction of rotation of the gear ring 603. Since the gear ring 603 also has only half teeth, when the gear ring 603 is meshed with the connecting frame 602, the gear 2 606 will be controlled to rotate again, thereby realizing that the gear 2 606 will drive the stirring rod 608 to produce intermittent reversal in different directions while rotating with the gear ring 603, which is more conducive to uniform mixing of the tracer and the fracturing fluid. When the injection flow of the tracer and the fracturing fluid changes, the stirring blades 609 on the outer periphery of the stirring rod 608 will change due to the change in flow. When the stirring blades 609 contact the fracturing fluid and the tracer, they will rotate accordingly, and the rotation of the stirring blades 609 will drive the rotating rod 701 to rotate accordingly, and the rotating block 1 702 at the other end of the rotating rod 701 will rotate in the stirring rod 608. When the rotating block 1 702 rotates, the limit blocks 2 1201 on the front and rear sides of the movable block 707 will slide inside the limit groove 2 1202, and the movable rod 706 will be controlled to move through the rotation connection between the movable block 707 and the movable rod 706, so that the movable rod 706 drives the limit plate 704 to squeeze the spring 1 705, so that the rotation range of the stirring blades 609 is limited and will not rotate excessively, thereby achieving the corresponding rotation to adapt to the flow changes of the fracturing fluid and the tracer, which is more conducive to mixing the fracturing fluid and the tracer; After the fracturing fluid and the tracer are mixed for a period of time, the connecting valve 13 can be started to allow the mixed fracturing fluid and tracer to enter the injection pipe 5. After the mixed liquid enters the injection pipe 5, a certain pressure will be formed on the injection pipe 5 and the injection pipe 5 will vibrate. Since the injection pipe 5 is installed inside the outer pipe 4, the outer pipe 4 will vibrate accordingly. When the outer pipe 4 vibrates, the arc plate 801 will move accordingly, so that the arc plate 801 will drive the connecting block 1 802 to move together. When the connecting block 1 802 moves, the two rotating rods 805 will reverse, thereby respectively controlling the two connecting blocks 2 806 and the driving arm 807 to move in the opposite direction, and the slides 808 on the upper and lower sides of the driving arm 807 will move together with the driving arm 807, so that when the driving arm 807 moves, the slide 808 will move along the slide bar 803 and squeeze the spring 2 804, so as to avoid the expansion and deformation of the injection pipe 5 and the outer pipe 4, resulting in uneven pressure affecting the uniform transportation of the tracer and the fracturing fluid; When the mixed liquid is transported in the injection pipe 5, the controller 901 and the heating rod 904 need to be started. The controller 901 controls the heating belt 902 surrounding the outer circumference of the injection pipe 5 to work, so that the heating belt 902 and the heating rod 904 heat different areas of the injection pipe 5, thereby avoiding the crystallization of the liquid due to the low temperature when transporting the liquid, which affects the effect of the tracer and the fracturing fluid.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent self-controlled tracer automatic injection device for fracturing, comprising two liquid storage tanks (1), characterized in that: A support assembly (2) is provided at the bottom of the two liquid storage tanks (1); a mixing tank (3) is installed on the top side of the middle of the support assembly (2); a stirring assembly (6) is provided inside the mixing tank (3); a connecting valve (13) is installed at the bottom of the mixing tank (3); an injection pipe (5) is installed at one end of the connecting valve (13) away from the mixing tank (3); an outer pipe (4) is installed on the periphery of the injection pipe (5); a heating assembly (9) is installed on one side of the outer pipe (4); a protection assembly (8) is provided on both the left and right ends of the outer periphery of the injection pipe (5); and a generator (10) is installed on the side of the support assembly (2) close to the liquid storage tank (1); The stirring assembly (6) comprises a stirring motor (601), wherein the stirring motor (601) is fixedly connected to the top of the mixing tank (3), a connecting frame (602) is fixedly connected to the outer periphery of the output end of the stirring motor (601), a plurality of evenly distributed connecting rods (604) are fixedly connected to the side of the connecting frame (602) away from the stirring motor (601), a gear ring (603) is fixedly connected to the side of the plurality of connecting rods (604) away from the stirring motor (601), a bottom plate (607) is fixedly connected to the side of the gear ring (603) away from the plurality of connecting rods (604), and a gear 1 (605) is fixedly connected to the output end of the stirring motor (601). Two stirring rods (608) are rotatably connected to the inside of the mixing tank (3) at a side away from the stirring motor (601), and the tops of the two stirring rods (608) are fixedly connected to gear 2 (606), and the gear 2 (606) is meshed with gear 1 (605) and the gear ring (603). The outer peripheries of the two stirring rods (608) are rotatably connected to a plurality of stirring blades (609) evenly distributed in a straight line, and an adjustment component (7) is provided at one end of the stirring blades (609) close to the stirring rods (608). Connecting pipes (610) are fixedly connected to the tops of the left and right sides of the mixing tank (3), and a delivery pump (611) is installed at the bottoms of the two liquid storage tanks (1).

2. The intelligent self-controlled tracer automatic injection device for fracturing according to claim 1, characterized in that: The protection component (8) comprises an arc-shaped plate (801), the arc-shaped plate (801) being slidably connected to the outer periphery of the outer tube (4), a connecting block (802) being fixedly connected to the side of the arc-shaped plate (801) away from the outer tube (4), a limiting component (11) being provided on both the upper and lower sides of the connecting block (802), a rotating rod (805) being rotatably connected to the front and rear ends of the side of the connecting block (802) away from the arc-shaped plate (801), and the two rotating rods (805) being away from the connecting block (802). The two ends are rotatably connected to connecting blocks 2 (806); the two connecting blocks 2 (806) are fixedly connected to driving arms (807) on one side away from the two rotating rods (805); the two driving arms (807) are fixedly connected to slide plates (808) on both upper and lower sides; the slide plates (808) are slidably connected to a transverse plate (809) on the outer periphery of the side away from the driving arms (807); the slide plates (808) are slidably connected to a sliding rod (803) inside; and one side of the slide plates (808) is fixedly connected to spring 2 (804).

3. The intelligent self-controlled tracer automatic injection device for fracturing according to claim 2, characterized in that: The heating assembly (9) comprises a controller (901), the controller (901) being fixedly connected to the outer circumference of the outer tube (4), a heating belt (902) being fixedly connected to a side of the controller (901) close to the outer tube (4), a mounting ring (903) being slidably connected to the outer circumference of the injection tube (5), a plurality of evenly distributed heating rods (904) being fixedly connected to the interior of the mounting ring (903), and fixing bolts (905) being threadedly connected to both left and right sides of the bottom of the mounting ring (903).

4. The intelligent self-controlled tracer automatic injection device for fracturing according to claim 2, characterized in that: The support assembly (2) comprises a support plate 1 (202), a support frame 1 (201) being mounted at the bottom of the support plate 1 (202), a support frame 2 (203) being mounted at the bottom of the support frame 1 (201), and a support plate 2 (204) being mounted at the bottom of the support frame 2 (203).

5. The intelligent self-controlled tracer automatic injection device for fracturing according to claim 1, characterized in that: The adjusting component (7) comprises a rotating rod (701), wherein the rotating rod (701) is fixedly connected to a side of the stirring blade (609) close to the stirring rod (608); an end of the rotating rod (701) away from the stirring blade (609) is fixedly connected to a rotating block 1 (702); a movable block (707) is slidably connected inside the rotating block 1 (702); a limiting component 2 (12) is provided on both the front and rear sides of the movable block (707); a movable rod (706) is rotatably connected inside the movable block (707); an end of the movable rod (706) away from the rotating block 1 (702) is fixedly connected to a limiting plate (704); a side of the limiting plate (704) close to the movable rod (706) is fixedly connected to a spring 1 (705); and a rotating block 2 (703) is slidably connected to the periphery of the limiting plate (704).

6. The intelligent self-controlled tracer automatic injection device for fracturing according to claim 4, characterized in that: The limiting component 1 (11) comprises a limiting block 1 (1101), wherein the limiting block 1 (1101) is fixedly connected to one side of the connecting block 1 (802), and the connecting block 1 (802) is slidably connected to the inner middle side of the supporting plate 2 (204). The supporting plate 2 (204) is provided with limiting grooves 1 (1102) on both the upper and lower sides thereof, and the limiting block 1 (1101) is slidably connected inside one of the limiting grooves 1 (1102).

7. The intelligent self-controlled tracer automatic injection device for fracturing according to claim 4, characterized in that: The two liquid storage tanks (1) are respectively fixedly connected to the left and right ends of the side of the support plate 1 (202) away from the support frame 1 (201), the mixing tank (3) is fixedly connected to the side of the support plate 2 (204) close to the support plate 1 (202), and the outer tube (4) is slidably connected to the middle part of the support plate 2 (204).

8. The intelligent self-controlled tracer automatic injection device for fracturing according to claim 5, characterized in that: The second limiting assembly (12) comprises a second limiting block (1201), wherein the second limiting block (1201) is fixedly connected to one side of the movable block (707), and the first rotating block (702) is provided with second limiting grooves (1202) on both the front and rear sides thereof, and the second limiting block (1201) is slidably connected inside one of the second limiting grooves (1202).

9. The intelligent self-controlled tracer automatic injection device for fracturing according to claim 1, characterized in that: The two delivery pumps (611) are respectively fixedly connected to the tops of the two connecting pipes (610).

10. The intelligent self-controlled tracer automatic injection device for fracturing according to claim 5, characterized in that: The rotating rod (701) is rotatably connected to the inside of the stirring rod (608).

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