A rotary jet device for oilfield plug-removing fluid and a method of using the same

Abstract

The present application relates to oilfield pipeline plugging cleaning related technical field, and disclose a kind of oilfield plugging fluid rotary injection device and its use method, including working shell, the top of working shell is connected with liquid delivery pipe, the inner wall bottom end of working shell is rotatably connected with rotating shell, the bottom end of rotating shell is respectively connected with several injection pipes, further including, rotary injection mechanism, rotary injection mechanism includes several fixed shells fixedly connected in the top of rotating shell, staff places device to the inside of oilfield drilling by extending liquid delivery pipe, while starting high-pressure water pump, high-pressure water pump transmits water to the inside of liquid delivery pipe, water flow enters the inside of working shell by liquid delivery pipe, water flow enters the inside of rotating shell by working shell, water flow enters the inside of injection pipe by rotating shell, through the flow guide channel in the inside of injection pipe, produce rotary force, make rotating shell rotate, can make water flow present rotary injection movement, to scale inside the oilfield drilling is cleaned.

Description

Technical Field

[0001] This invention relates to the technical field of oilfield pipeline blockage cleaning, specifically to an oilfield unblocking fluid rotary spraying device and its usage method. Background Technology

[0002] Pollution and mechanical impurities from drilling, completion, downhole operations, and long-term oil production and water injection processes, along with the deposition of drilling fluid, bitumen, and asphalt resins and salts, severely clog near-wellbore pores. Long-term extraction of some heavy oil wells leads to a decrease in the content of light components and an increase in the content of heavy components, resulting in a significant increase in crude oil viscosity. Heavy oil and fouling commonly found in the wellbore and near-wellbore area easily clog boreholes and reservoir channels. The level of cleaning and unclogging determines the success of oilfield development and, consequently, the lifespan of the oilfield.

[0003] Existing equipment typically cleans scaled areas by spraying a deblocking fluid. However, during the spraying process, the scale inside the oil well may harden due to prolonged operation, which can affect the cleaning efficiency of the deblocking fluid, resulting in incomplete cleaning and ultimately impacting the oil field's development. Summary of the Invention

[0004] The purpose of this invention is to provide an oilfield unblocking fluid rotary injection device and its usage method to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a rotary injection device for oilfield unblocking fluid and its usage method, comprising a working shell, a fluid delivery pipe connected to the top of the working shell, a rotating shell rotatably connected to the bottom of the inner wall of the working shell, and several injection pipes connected to the bottom perimeter of the rotating shell. It also includes a rotary injection mechanism, comprising several fixed shells fixedly connected to the top perimeter of the rotating shell, a first spring fixedly connected to one side of the inner wall of each fixed shell, a first sliding rod fixedly connected to one end of the first spring, the outer wall of the first sliding rod slidably connected to the inner wall of the fixed shell, and a concave shell fixedly connected to the end of the first sliding rod away from the first spring. A cleaning component is provided on the inner wall of the concave shell.

[0007] Furthermore, the cleaning assembly includes a scraper rotatably connected to the top of the inner wall of the concave shell, with arc springs fixedly connected to both sides of the scraper, one end of the arc springs fixedly connected to one side of the inner wall of the concave shell, and round shells fixedly connected to both ends of one side of the outer wall of the concave shell, with pull ropes fixedly connected to both ends of one side of the scraper, one end of the pull ropes penetrating the concave shell and extending into the interior of the round shell.

[0008] Furthermore, a circular plate is fixedly connected to one end of the pull rope, and the outer wall of the circular plate is slidably connected to the inner wall of the circular shell. Flexible tubes are connected to both sides of one end of the circular shell, and a semi-circular shell is connected to one end of the flexible tube. One side of the semi-circular shell is fixedly connected to the side wall of the scraper, and a second spring is fixedly connected to one side of the inner wall of the semi-circular shell. A second sliding rod is fixedly connected to one end of the second spring, and the outer wall of the second sliding rod is slidably connected to the inner wall of the semi-circular shell.

[0009] Furthermore, a vibration assembly is provided on one side of the circular plate. The vibration assembly includes a square rod fixedly connected to one side of the circular plate. One end of the square rod passes through the circular shell and extends to the outside of the circular shell. A concave rod is fixedly connected to the end of the square rod away from the circular plate. A rotating rod is rotatably connected between the two concave rods. There are two rotating rods. A convex ball roller is fixedly connected to the middle of the outer wall of the rotating rod. A fixed plate is fixedly connected to the top and bottom of the rotating rod.

[0010] Furthermore, an auxiliary component is provided at one end of the second sliding rod. The auxiliary component includes a square shell fixedly connected to one end of the second sliding rod, a tapered plate slidably connected to the inner wall of the square shell, and a plurality of return springs fixedly connected to one end of the tapered plate.

[0011] Furthermore, one end of the reset spring is fixedly connected to one side of the inner wall of the square shell, and an elastic rope is fixedly connected to the side of the conical plate near the reset spring. One end of the elastic rope passes through the square shell and extends to the outside of the square shell. One end of the elastic rope is fixedly connected to a protrusion, and one end of the protrusion is fixedly connected to the side wall of the fixed plate.

[0012] Furthermore, a stabilizing component is provided at one end of the first sliding rod. The stabilizing component includes a traction rope fixedly connected to one side of the first sliding rod. One end of the traction rope passes through the fixed shell and extends to the outside of the fixed shell. An annular plate is fixedly connected to one end of the traction rope.

[0013] Furthermore, an annular shell is slidably connected to the outer wall of the annular plate, the inner wall of the annular shell is fixedly connected to the outer wall of the working shell, and several compression springs are fixedly connected to the bottom of the annular plate, with the bottom of the compression springs fixedly connected to the bottom of the inner cavity of the annular shell.

[0014] Furthermore, an annular hole is provided at the bottom of the annular shell, one end of the traction rope is placed inside the annular hole, an annular bladder is fixedly connected to the bottom of the annular shell, and several cylinders are connected around the outer wall of the annular shell. A pneumatic rod is slidably connected to the inner wall of the cylinder, and a crossbar is rotatably connected through the side wall of one end of the pneumatic rod. Rollers are fixedly connected to both ends of the crossbar, and an L-shaped rod is fixedly connected to one end of the pneumatic rod.

[0015] The method for using the oilfield unblocking fluid rotary injection device includes the following steps:

[0016] Step 1: The staff places the device inside the oilfield drilling well through the extended infusion tube and starts the high-pressure water pump. The high-pressure water pump delivers water to the inside of the infusion tube. The water flows through the infusion tube into the inside of the working shell, then through the working shell into the inside of the rotating shell, and finally through the rotating shell into the inside of the jet pipe. Through the guide channel inside the jet pipe, a rotational force is generated, causing the rotating shell to rotate. At the same time, the rotating shell is impacted by the high-pressure water flow, causing it to rotate at high speed. The centrifugal force generated during the rotation of the rotating shell causes the first sliding rod to move inside the fixed shell. The fixed shell drives the concave shell to move, and the concave shell drives the scraper to move.

[0017] Step 2: When the scraper comes into contact with the inner wall of the oilfield drilling well, it is subjected to the reaction force of the inner wall of the oilfield drilling well, causing the scraper to shake slightly. During the shaking of the scraper, the pull rope moves. Due to the limitation of the concave shell, the pull rope is stretched, causing the pull rope to move the circular plate on the inner wall of the circular shell. During the movement of the circular plate, the airflow inside the circular shell enters the interior of the semi-circular shell through the flexible tube. The airflow causes the second sliding rod inside the semi-circular shell to move. The second sliding rod drives the square shell to move. During the movement of the square shell, it is subjected to the elastic deformation of the return spring, causing the conical plate to move inside the square shell.

[0018] Step 3: As the circular plate moves closer to the inner wall of the oilfield well along with the concave shell, the circular plate drives the square rod to move, the square rod drives the concave rod to move, the concave rod drives the rotating rod to move, and the rotating rod drives the convex roller to move. At the same time, during the movement of the circular plate, the rotating rod drives the fixed plate to rotate, the fixed plate drives the protrusion to rotate, and the rotation of the protrusion causes the elastic rope to be stretched back and forth. During the stretching of the elastic rope, the conical plate is moved back and forth.

[0019] Step 4: As the first sliding rod moves, it drives the traction rope to move, stretching the rope and causing the annular plate to move downward inside the annular shell. During the descent of the annular plate, the airflow inside the annular shell enters the interior of the cylinder. The airflow causes the pneumatic rod inside the cylinder to move, which in turn drives the crossbar to move. The crossbar then drives the roller to move, and the pneumatic rod also drives the L-shaped rod to move, bringing the L-shaped rod into contact with the inner wall of the oilfield drilling well. When the scraper comes into contact with the inner wall of the oilfield drilling well, it also comes into contact with the L-shaped rod, increasing the amplitude of the scraper's sway.

[0020] The present invention has the following beneficial effects:

[0021] (1) In this invention, the operator places the device inside the oilfield well by extending the infusion pipe and starts the high-pressure water pump at the same time. The high-pressure water pump transmits water to the inside of the infusion pipe. The water flows through the infusion pipe into the inside of the working shell, then through the working shell into the inside of the rotating shell, and finally through the rotating shell into the inside of the jet pipe. Through the guide channel inside the jet pipe, a rotational force is generated, causing the rotating shell to rotate. This allows the water flow to exhibit a rotating jet motion, thereby cleaning the scale inside the oilfield well. At the same time, the rotating shell is impacted by the high-pressure water flow, causing it to rotate at high speed. The centrifugal force generated during the rotation of the rotating shell causes the first sliding rod to move inside the fixed shell. The fixed shell drives the concave shell to move, and the concave shell drives the scraper to move. During the movement of the scraper, it will contact the inner wall of the oilfield well, thereby cleaning the scale on the inner wall of the oilfield well and further enhancing the scale cleaning efficiency.

[0022] (2) In this invention, when the scraper comes into contact with the inner wall of the oilfield drilling, it is subjected to the reaction force of the inner wall of the oilfield drilling, causing the scraper to shake slightly. During the shaking of the scraper, the pull rope is driven to move. Due to the limitation of the concave shell, the pull rope is stretched, causing the pull rope to drive the circular plate to move on the inner wall of the circular shell. During the movement of the circular plate, the airflow inside the circular shell enters the interior of the semi-circular shell through the flexible tube. The airflow causes the second sliding rod inside the semi-circular shell to move. The second sliding rod drives the square shell to move. During the movement of the square shell, it is subjected to the elastic deformation of the return spring, causing the conical plate to move inside the square shell. This allows the conical plate to keep in contact with the outer wall of the scraper, cleaning the scale attached to the outer wall of the scraper and preventing the scale from adhering to the outer wall of the scraper, thus improving the cleaning efficiency of the scraper on the inner wall of the oilfield drilling.

[0023] (3) In this invention, when the circular plate moves closer to the inner wall of the oilfield well along with the concave shell, the circular plate drives the square rod to move, the square rod drives the concave rod to move, the concave rod drives the rotating rod to move, and the rotating rod drives the convex ball roller to move, so that the convex ball roller can contact the inner wall of the oilfield well. The convex ball roller rolls and crushes the hard scale surface of the inner wall of the oilfield well through the protrusions on it, making the hard scale surface loose and easier to scrape and clean. At the same time, during the movement of the circular plate, the circular plate drives the square rod to move, and the square rod... The concave rod moves, which in turn moves the rotating rod. During this movement, the convex ball roller fits more tightly against the inner wall of the oilfield drilling rig, further enhancing its rolling effect. The rotating rod also drives the fixed disc to rotate, which in turn drives the protrusion to rotate. This rotation causes the elastic rope to be stretched repeatedly, which in turn causes the conical plate to move repeatedly. This allows the conical plate to impact the outer wall of the scraper, further preventing scale from adhering to the outer wall of the scraper and improving its cleaning efficiency.

[0024] (4) In this invention, when the first sliding rod moves, the first sliding rod drives the traction rope to move, and the traction rope is stretched, causing the annular plate to move downward inside the annular shell. During the descent of the annular plate, the airflow inside the annular shell enters the inside of the cylinder. The airflow causes the pneumatic rod inside the cylinder to move, the pneumatic rod drives the crossbar to move, and the crossbar drives the roller to move, so that multiple rollers can contact the inner wall of the oilfield drilling during the movement, thereby stabilizing the working shell inside the oilfield drilling, preventing the working shell from shaking when impacted by water pressure, and improving the spray cleaning effect of water flow on the scale on the inner wall of the oilfield drilling. In addition, the pneumatic rod drives the L-shaped rod to move, so that the L-shaped rod contacts the inner wall of the oilfield drilling. When the scraper contacts the inner wall of the oilfield drilling, the scraper will also contact the L-shaped rod, making the amplitude of the scraper shaking larger, which improves the rolling effect of the convex ball roller on the inner wall of the oilfield drilling.

[0025] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall side structure of the present invention;

[0028] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the cylindrical structure of the present invention from a bottom view;

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of the square rod of the present invention;

[0031] Figure 5 This is a schematic diagram of the exploded structure of the second sliding rod of the present invention;

[0032] Figure 6 This is a schematic cross-sectional view of the working shell structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the concave shell side structure of the present invention;

[0034] Figure 8 For the present invention Figure 3 Enlarged view of A in the middle;

[0035] Figure 9 For the present invention Figure 4 Enlarged view of B in the middle;

[0036] Figure 10 For the present invention Figure 5 Enlarged view of C;

[0037] Figure 11 For the present invention Figure 6 Enlarged view of D;

[0038] Figure 12 This is a schematic diagram of the method flow of the present invention.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] In the diagram: 1. Working shell; 2. Infusion tube; 3. Rotating shell; 4. Spray tube; 6. Rotary spray mechanism; 61. Fixed shell; 62. First spring; 63. First sliding rod; 64. Concave shell; 65. Cleaning assembly; 66. Vibration assembly; 67. Auxiliary assembly; 68. Stabilizing assembly; 651. Scraper; 652. Arc spring; 653. Circular shell; 654. Pull rope; 655. Circular plate; 656. Flexible tube; 657. Semi-circular shell; 658. Second spring; 659. Second sliding rod Moving rod; 661, square rod; 662, concave rod; 663, rotating rod; 664, convex ball roller; 665, fixed plate; 671, square shell; 674, return spring; 673, conical plate; 675, elastic rope; 676, protrusion; 681, traction rope; 682, annular shell; 683, annular plate; 684, compression spring; 685, annular hole; 686, annular bladder; 687, cylinder; 688, pneumatic rod; 689, roller; 6811, crossbar; 6810, L-shaped rod. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1, please refer to Figures 1-12 As shown, the present invention is an oilfield unblocking fluid rotary injection device and its usage method, including a working shell 1, the top of the working shell 1 is connected to a fluid delivery pipe 2, the purpose of which is to transport the unblocking fluid; a rotating shell 3 is rotatably connected to the bottom of the inner wall of the working shell 1, and a plurality of injection pipes 4 are connected to the bottom of the rotating shell 3, the purpose of which is to allow the unblocking fluid to be injected into the well through the injection pipes 4; and also includes:

[0043] The rotary spraying mechanism 6 includes several fixed shells 61 fixedly connected to the top of the rotating shell 3. A first spring 62 is fixedly connected to one side of the inner wall of the fixed shell 61. A first sliding rod 63 is fixedly connected to one end of the first spring 62. The outer wall of the first sliding rod 63 is slidably connected to the inner wall of the fixed shell 61. A concave shell 64 is fixedly connected to the end of the first sliding rod 63 away from the first spring 62. A cleaning component 65 is provided on the inner wall of the concave shell 64.

[0044] The cleaning assembly 65 includes a scraper 651 rotatably connected to the top of the inner wall of the concave shell 64. Arc springs 652 are fixedly connected to both sides of the scraper 651. This arrangement is for the purpose of facilitating resetting. One end of the arc spring 652 is fixedly connected to one side of the inner wall of the concave shell 64. Two round shells 653 are fixedly connected to both ends of one side of the outer wall of the concave shell 64. A pull rope 654 is fixedly connected to both ends of one side of the scraper 651. One end of the pull rope 654 passes through the concave shell 64 and extends into the interior of the round shell 653.

[0045] One end of the pull rope 654 is fixedly connected to a circular plate 655. The outer wall of the circular plate 655 is slidably connected to the inner wall of the circular shell 653. One end of the circular shell 653 is connected to two flexible tubes 656 on both sides. The flexible tubes 656 can be flexibly deformed. One end of the flexible tubes 656 is connected to a semi-circular shell 657. One side of the semi-circular shell 657 is fixedly connected to the side wall of the scraper 651. One side of the inner wall of the semi-circular shell 657 is fixedly connected to a second spring 658. One end of the second spring 658 is fixedly connected to a second sliding rod 659. The outer wall of the second sliding rod 659 is slidably connected to the inner wall of the semi-circular shell 657.

[0046] A vibration assembly 66 is provided on one side of the circular plate 655. The vibration assembly 66 includes a square rod 661 fixedly connected to one side of the circular plate 655. One end of the square rod 661 passes through the circular shell 653 and extends to the outside of the circular shell 653. A concave rod 662 is fixedly connected to the end of the square rod 661 away from the circular plate 655. A rotating rod 663 is rotatably connected between the two concave rods 662. There are two rotating rods 663. A convex ball roller 664 is fixedly connected to the middle of the outer wall of the rotating rod 663. The outer wall of the convex ball roller 664 is provided with multiple sets of convex hemispheres. A fixed plate 665 is fixedly connected to the top and bottom of the rotating rod 663.

[0047] An auxiliary component 67 is provided at one end of the second sliding rod 659. The auxiliary component 67 includes a square shell 671 fixedly connected to one end of the second sliding rod 659. A tapered plate 673 is slidably connected to the inner wall of the square shell 671. A plurality of return springs 674 are fixedly connected to one end of the tapered plate 673.

[0048] One end of the return spring 674 is fixedly connected to one side of the inner wall of the square shell 671. An elastic rope 675 is fixedly connected to the side of the tapered plate 673 near the return spring 674. The purpose of this arrangement is to enable elastic stretching deformation. One end of the elastic rope 675 passes through the square shell 671 and extends to the outside of the square shell 671. One end of the elastic rope 675 is fixedly connected to a protrusion 676. One end of the protrusion 676 is fixedly connected to the side wall of the fixed plate 665.

[0049] Workers place the device inside the oilfield well via the extended infusion pipe 2 and simultaneously start the high-pressure water pump. The high-pressure water pump delivers water to the inside of the infusion pipe 2, and the water flows through the infusion pipe 2 into the inside of the working shell 1. The water flows through the working shell 1 into the inside of the rotating shell 3, and through the rotating shell 3 into the inside of the jet pipe 4. Through the guide channel inside the jet pipe 4, a rotational force is generated, causing the rotating shell 3 to rotate. This allows the water to exhibit a rotating jet motion, thereby cleaning the scale inside the oilfield well. At the same time, the rotating shell 3 is impacted by the high-pressure water flow, causing it to rotate at high speed. The centrifugal force generated during the rotation of the rotating shell 3 causes the first sliding rod 63 to move inside the fixed shell 61. The fixed shell 61 drives the concave shell 64 to move, and the concave shell 64 drives the scraper 651 to move. During the movement, the scraper 651 comes into contact with the inner wall of the oilfield well, thereby cleaning the scale on the inner wall of the oilfield well and further enhancing the scale cleaning efficiency.

[0050] When the scraper 651 comes into contact with the inner wall of the oilfield drilling rig, it experiences a reaction force from the inner wall, causing the scraper 651 to oscillate slightly. During this oscillation, the scraper 651 drives the pull rope 654 to move. Limited by the concave shell 64, the pull rope 654 is stretched, causing it to move the circular plate 655 along the inner wall of the circular shell 653. As the circular plate 655 moves, the airflow inside the circular shell 653 enters the semi-circular shell 657 through the flexible tube 656. This airflow causes the semi-circular shell 657 to... The second sliding rod 659 inside moves, which drives the square shell 671 to move. During the movement of the square shell 671, it is subjected to the elastic deformation of the return spring 674, which causes the conical plate 673 to move inside the square shell 671. This allows the conical plate 673 to keep in contact with the outer wall of the scraper 651, cleaning the scale attached to the outer wall of the scraper 651 and preventing the scale from adhering to the outer wall of the scraper 651, thereby improving the cleaning efficiency of the scraper 651 for the inner wall of oilfield drilling.

[0051] In embodiment 2, a stabilizing component 68 is provided at one end of the first sliding rod 63. The stabilizing component 68 includes a traction rope 681 fixedly connected to one side of the first sliding rod 63. One end of the traction rope 681 passes through the fixed shell 61 and extends to the outside of the fixed shell 61. An annular plate 683 is fixedly connected to one end of the traction rope 681.

[0052] An annular shell 682 is slidably connected to the outer wall of the annular plate 683. The inner wall of the annular shell 682 is fixedly connected to the outer wall of the working shell 1. Several compression springs 684 are fixedly connected to the bottom of the annular plate 683. The bottom of the compression springs 684 is fixedly connected to the bottom of the inner cavity of the annular shell 682.

[0053] The bottom of the annular shell 682 has an annular hole 685. This is designed to prevent the traction rope 681 from getting stuck during stretching and rotation. One end of the traction rope 681 is placed inside the annular hole 685. The bottom of the annular shell 682 is fixedly connected to an annular bladder 686. There are two annular bladders 686. The two annular bladders 686 fit tightly against the bottom of the annular shell 682 and can seal the annular hole 685 to prevent the air pressure inside the annular shell from flowing to the outside through the annular hole 685, thus enhancing the stability of the air pressure. Several cylinders 687 are connected around the outer wall of the annular shell 682. A pneumatic rod 688 is slidably connected to the inner wall of the cylinder 687. A crossbar 6811 is rotatably connected to one end of the pneumatic rod 688. Rollers 689 are fixedly connected to both ends of the crossbar 6811. An L-shaped rod 6810 is fixedly connected to one end of the pneumatic rod 688.

[0054] The method for using the oilfield unblocking fluid rotary injection device includes the following steps:

[0055] Step 1: The staff places the device inside the oilfield drilling well through the extended infusion tube 2, and at the same time starts the high-pressure water pump. The high-pressure water pump delivers water to the inside of the infusion tube 2. The water flows through the infusion tube 2 into the inside of the working shell 1, and through the working shell 1 into the inside of the rotating shell 3. The water flows through the rotating shell 3 into the inside of the injection pipe 4. Through the guide channel inside the injection pipe 4, a rotational force is generated, causing the rotating shell 3 to rotate. At the same time, the rotating shell 3 is impacted by the high-pressure water flow, causing it to rotate at high speed. The centrifugal force generated during the rotation of the rotating shell 3 causes the first sliding rod 63 to move inside the fixed shell 61. The fixed shell 61 drives the concave shell 64 to move, and the concave shell 64 drives the scraper 651 to move.

[0056] Step 2: When the scraper 651 comes into contact with the inner wall of the oilfield drilling well, it is subjected to the reaction force of the inner wall of the oilfield drilling well, causing the scraper 651 to shake slightly. During the shaking of the scraper 651, the pull rope 654 moves. Limited by the concave shell 64, the pull rope 654 is stretched, causing the pull rope 654 to drive the circular plate 655 to move on the inner wall of the circular shell 653. During the movement of the circular plate 655, the airflow inside the circular shell 653 enters the interior of the semi-circular shell 657 through the flexible tube 656. The airflow causes the second sliding rod 659 inside the semi-circular shell 657 to move. The second sliding rod 659 drives the square shell 671 to move. During the movement of the square shell 671, it is subjected to the elastic deformation of the return spring 674, causing the conical plate 673 to move inside the square shell 671.

[0057] Step 3: As the circular plate 655 moves closer to the inner wall of the oilfield well along with the concave shell 64, the circular plate 655 drives the square rod 661 to move, the square rod 661 drives the concave rod 662 to move, the concave rod 662 drives the rotating rod 663 to move, and the rotating rod 663 drives the convex ball roller 664 to move. At the same time, during the movement of the circular plate 655, the rotating rod 663 drives the fixed plate 665 to rotate, and the fixed plate 665 drives the protrusion 676 to rotate. During the rotation of the protrusion 676, the elastic rope 675 is subjected to reciprocating tension, and during the tension of the elastic rope 675, the conical plate 673 is driven to reciprocate.

[0058] Step 4: As the first sliding rod 63 moves, it drives the traction rope 681 to move. The traction rope 681 is stretched, causing the annular plate 683 to move downward inside the annular shell 682. During the descent of the annular plate 683, the airflow inside the annular shell 682 enters the interior of the cylinder 687. The airflow causes the pneumatic rod 688 inside the cylinder 687 to move. The pneumatic rod 688 drives the crossbar 6811 to move. The crossbar 6811 drives the roller 689 to move. The pneumatic rod 688 also drives the L-shaped rod 6810 to move, causing the L-shaped rod 6810 to contact the inner wall of the oilfield drilling well. When the scraper 651 contacts the inner wall of the oilfield drilling well, the scraper 651 will also contact the L-shaped rod 6810, causing the amplitude of the scraper 651 to increase.

[0059] In use, as the circular plate 655 moves closer to the inner wall of the oilfield drilling rig along with the concave shell 64, the circular plate 655 drives the square rod 661 to move, the square rod 661 drives the concave rod 662 to move, the concave rod 662 drives the rotating rod 663 to move, and the rotating rod 663 drives the convex ball roller 664 to move, so that the convex ball roller 664 can contact the inner wall of the oilfield drilling rig. The protrusions on the convex ball roller 664 roll and crush the hard scale surface of the inner wall of the oilfield drilling rig, making the hard scale surface loose and easier to scrape and clean. At the same time, during the movement of the circular plate 655, the circular plate 655 drives the square rod 661 to move, and the square rod 661 drives the concave rod 662 to move. The concave rod 662 moves, driving the rotating rod 663 to move. During the movement of the rotating rod 663, the convex ball roller 664 fits more tightly against the inner wall of the oilfield drilling, further enhancing the rolling effect of the convex ball roller 664. The rotating rod 663 drives the fixed disk 665 to rotate, and the fixed disk 665 drives the protrusion 676 to rotate. During the rotation of the protrusion 676, the elastic rope 675 is subjected to reciprocating tension. During the tension of the elastic rope 675, the conical plate 673 moves reciprocally, thereby causing the conical plate 673 to impact the outer wall of the scraper 651, further preventing scale from adhering to the outer wall of the scraper 651 and improving the cleaning efficiency of the scraper 651.

[0060] As the first sliding rod 63 moves, it drives the traction rope 681 to move, stretching the rope and causing the annular plate 683 to move downward inside the annular shell 682. During this descent, the airflow inside the annular shell 682 enters the cylinder 687, causing the pneumatic rod 688 inside the cylinder 687 to move. The pneumatic rod 688 then drives the crossbar 6811 to move, which in turn drives the rollers 689 to move. This allows the multiple rollers 689 to interact with the inner wall of the oilfield drilling rig during their movement. The contact is made so that the working shell 1 is stabilized inside the oilfield drilling, preventing the working shell 1 from shaking when impacted by water pressure. This improves the spray cleaning effect of water flow on the scale on the inner wall of the oilfield drilling. The pneumatic rod 688 drives the L-shaped rod 6810 to move, so that the L-shaped rod 6810 contacts the inner wall of the oilfield drilling. When the scraper 651 contacts the inner wall of the oilfield drilling, the scraper 651 will also contact the L-shaped rod 6810, which increases the amplitude of the sway of the scraper 651, thereby improving the rolling effect of the convex ball roller 664 on the inner wall of the oilfield drilling.

[0061] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rotary injection device for oilfield unblocking fluid, characterized in that: The device includes a working shell (1), the top of which is connected to an infusion tube (2), and a rotating shell (3) rotatably connected to the bottom of the inner wall of the working shell (1). Several injection tubes (4) are connected to the bottom of the rotating shell (3) around its perimeter. The device also includes: A rotary spraying mechanism (6) includes several fixed shells (61) fixedly connected around the top of the rotating shell (3). A first spring (62) is fixedly connected to one side of the inner wall of the fixed shell (61). A first sliding rod (63) is fixedly connected to one end of the first spring (62). The outer wall of the first sliding rod (63) is slidably connected to the inner wall of the fixed shell (61). A concave shell (64) is fixedly connected to the end of the first sliding rod (63) away from the first spring (62). A cleaning component (65) is provided on the inner wall of the concave shell (64). The cleaning assembly (65) includes a scraper (651) rotatably connected to the top of the inner wall of the concave shell (64). Arc springs (652) are fixedly connected to both sides of the scraper (651). One end of the arc springs (652) is fixedly connected to one side of the inner wall of the concave shell (64). Circular shells (653) are fixedly connected to both ends of one side of the outer wall of the concave shell (64). Pull ropes (654) are fixedly connected to both ends of one side of the scraper (651). One end of the pull ropes (654) passes through the concave shell (64) and extends into the interior of the circular shell (653). One end of the pull rope (654) is fixedly connected to a circular plate (655). The outer wall of the circular plate (655) is slidably connected to the inner wall of the circular shell (653). Flexible tubes (656) are connected to both sides of one end of the circular shell (653). One end of the flexible tube (656) is connected to a semi-circular shell (657). One side of the semi-circular shell (657) is fixedly connected to the side wall of the scraper (651). A second spring (658) is fixedly connected to one side of the inner wall of the semi-circular shell (657). A second sliding rod (659) is fixedly connected to one end of the second spring (658). The outer wall of the second sliding rod (659) is slidably connected to the inner wall of the semi-circular shell (657). A vibration assembly (66) is provided on one side of the circular plate (655). The vibration assembly (66) includes a square rod (661) fixedly connected to one side of the circular plate (655). One end of the square rod (661) passes through the circular shell (653) and extends to the outside of the circular shell (653). A concave rod (662) is fixedly connected to the end of the square rod (661) away from the circular plate (655). A rotating rod (663) is rotatably connected between the two concave rods (662). There are two rotating rods (663). A convex ball roller (664) is fixedly connected to the middle of the outer wall of the rotating rod (663). A fixed plate (665) is fixedly connected to the top and bottom of the rotating rod (663). An auxiliary component (67) is provided at one end of the second sliding rod (659). The auxiliary component (67) includes a square shell (671) fixedly connected to one end of the second sliding rod (659). A tapered plate (673) is slidably connected to the inner wall of the square shell (671). A plurality of return springs (674) are fixedly connected to one end of the tapered plate (673).

2. The rotary injection device for oilfield unblocking fluid according to claim 1, characterized in that: One end of the reset spring (674) is fixedly connected to one side of the inner wall of the square shell (671). An elastic rope (675) is fixedly connected to the side of the conical plate (673) near the reset spring (674). One end of the elastic rope (675) passes through the square shell (671) and extends to the outside of the square shell (671). One end of the elastic rope (675) is fixedly connected to a protrusion (676). One end of the protrusion (676) is fixedly connected to the side wall of the fixed plate (665).

3. The oilfield unblocking fluid rotary injection device according to claim 2, characterized in that: One end of the first sliding rod (63) is provided with a stabilizing component (68), the stabilizing component (68) includes a traction rope (681) fixedly connected to one side of the first sliding rod (63), one end of the traction rope (681) passes through the fixed shell (61) and extends to the outside of the fixed shell (61), and one end of the traction rope (681) is fixedly connected to an annular plate (683).

4. The oilfield unblocking fluid rotary injection device according to claim 3, characterized in that: The outer wall of the annular plate (683) is slidably connected to an annular shell (682), the inner wall of the annular shell (682) is fixedly connected to the outer wall of the working shell (1), and a number of compression springs (684) are fixedly connected to the bottom of the annular plate (683), the bottom of the compression springs (684) is fixedly connected to the bottom of the inner cavity of the annular shell (682).

5. The oilfield unblocking fluid rotary injection device according to claim 4, characterized in that: The bottom of the annular shell (682) is provided with an annular hole (685). One end of the traction rope (681) is set inside the annular hole (685). An annular bladder (686) is fixedly connected to the bottom of the annular shell (682). Several cylinders (687) are connected around the outer wall of the annular shell (682). A pneumatic rod (688) is slidably connected to the inner wall of the cylinder (687). A crossbar (6811) is rotatably connected through the side wall of one end of the pneumatic rod (688). Rollers (689) are fixedly connected to both ends of the crossbar (6811). An L-shaped rod (6810) is fixedly connected to one end of the pneumatic rod (688).

6. A method of using an oilfield unblocking fluid rotary injection device, comprising the oilfield unblocking fluid rotary injection device as described in claim 5, characterized in that... Includes the following steps: Step 1: The staff places the device inside the oilfield drilling well through the extended infusion pipe (2) and starts the high-pressure water pump. The high-pressure water pump transmits water to the inside of the infusion pipe (2). The water flows through the infusion pipe (2) into the inside of the working shell (1). The water flows through the working shell (1) into the inside of the rotating shell (3). The water flows through the rotating shell (3) into the inside of the jet pipe (4). Through the guide channel inside the jet pipe (4), a rotational force is generated, causing the rotating shell (3) to rotate. At the same time, the rotating shell (3) is impacted by the high-pressure water flow, causing it to rotate at high speed. The centrifugal force generated during the rotation of the rotating shell (3) causes the first sliding rod (63) to move inside the fixed shell (61). The fixed shell (61) drives the concave shell (64) to move. The concave shell (64) drives the scraper (651) to move. Step Two: When the scraper (651) comes into contact with the inner wall of the oilfield drilling rig, it is subjected to the reaction force of the inner wall, causing the scraper (651) to sway slightly. During the swaying process, the scraper (651) drives the pull rope (654) to move. Limited by the concave shell (64), the pull rope (654) is stretched, causing the pull rope (654) to drive the circular plate (655) to move on the inner wall of the circular shell (653). The circular plate (655) moves through... During the process, the airflow inside the circular shell (653) enters the interior of the semi-circular shell (657) through the flexible tube (656). The airflow causes the second sliding rod (659) inside the semi-circular shell (657) to move. The second sliding rod (659) drives the square shell (671) to move. During the movement of the square shell (671), it is subjected to the elastic deformation of the return spring (674), causing the conical plate (673) to move inside the square shell (671). Step 3: When the circular plate (655) moves closer to the inner wall of the oilfield drilling site along with the concave shell (64), the circular plate (655) drives the square rod (661) to move, the square rod (661) drives the concave rod (662) to move, the concave rod (662) drives the rotating rod (663) to move, the rotating rod (663) drives the convex roller (664) to move, and at the same time, during the movement of the circular plate (655), the rotating rod (663) drives the fixed plate (665) to rotate, the fixed plate (665) drives the protrusion (676) to rotate, and during the rotation of the protrusion (676), the elastic rope (675) is subjected to reciprocating tension, and during the tension of the elastic rope (675), the conical plate (673) is driven to reciprocate; Step 4: As the first sliding rod (63) moves, it drives the traction rope (681) to move. The traction rope (681) is stretched, causing the annular plate (683) to move downward inside the annular shell (682). During the descent of the annular plate (683), the airflow inside the annular shell (682) enters the interior of the cylinder (687). The airflow causes the pneumatic rod (688) inside the cylinder (687) to move. (688) drives the crossbar (6811) to move, the crossbar (6811) drives the roller (689) to move, and the pneumatic rod (688) drives the L-shaped rod (6810) to move, so that the L-shaped rod (6810) comes into contact with the inner wall of the oilfield drilling. When the scraper (651) comes into contact with the inner wall of the oilfield drilling, the scraper (651) will also come into contact with the L-shaped rod (6810), so that the amplitude of the scraper (651) swaying increases.

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