A method for drilling a wellbore using a drillable bumper sub

Abstract

The application discloses a drilling shock sub and a realization method thereof, and belongs to the technical field of oil drilling tools, which comprises an outer pipe, the surface of the outer pipe is provided with a plurality of arc-shaped pieces, the inner part of the outer pipe is provided with a shock rod, the bottom end of the shock rod is connected with a connecting rod, the bottom end of the connecting rod is provided with a fixing rod, the upper end surface of the outer pipe is installed with a convenient heat dissipation assembly, the bottom end of the arc-shaped piece is provided with a limiting locking assembly, the surface of the fixing rod is symmetrically installed with a buffer damping assembly, and the bottom end of the fixing rod is installed with a shock head mounting assembly; the shock head mounting assembly is arranged, the damaged shock head can be disassembled and replaced through modular design, the maintenance and different operation requirements are facilitated, the applicability of the equipment is improved, the use quality of the equipment is ensured, the stability of work is improved, the weak buffer spring can be replaced, the use cost of the equipment is reduced, and the convenience of disassembly and assembly of the buffer spring is ensured.

Description

Technical Field

[0001] This invention belongs to the field of oil drilling tool technology, specifically relating to a drilling rig and its implementation method for oil drilling. Background Technology

[0002] A drilling rig is a downhole release tool that is attached to the drill string and used during drilling operations. It is typically connected between the drill collar and the drill pipe, or above the drill collar, or at the third drill pipe above the "neutralization point" (the point where the drill collar is no longer under pressure or tension). In deep wells, offshore drilling, and especially directional drilling, drilling rigs are often installed in the lower drill string assembly so that if the lower drill string becomes stuck, the rig can be manipulated to release the stuck material through upward or downward impact.

[0003] Chinese Patent Application No. 202322946834.9 discloses a drilling rig for oil wells, comprising an outer tube, a first retaining ring fixedly connected to the top of the inner surface of the outer tube, a second retaining ring fixedly connected to the inner surface of the outer tube, a damping chamber formed at the bottom of the inner surface of the outer tube, an arc-shaped plate movably connected to the top of the outer surface of the outer tube, connecting plates fixedly connected to both sides of the outer surface of the arc-shaped plate, a tremor rod movably connected to the inner surface of the outer tube, a first spring movably connected to the middle of the outer surface of the tremor rod, a connecting rod movably connected to the bottom of the inner surface of the tremor rod, a fixed rod movably connected to the bottom of the outer surface of the connecting rod, and a tremor head fixedly connected to the front of the bottom of the fixed rod. This invention improves the stability of the device, reduces equipment maintenance costs, increases equipment uptime, and reduces equipment failure rate.

[0004] The aforementioned disclosed patents have the following problems:

[0005] 1. The inconvenience of disassembling and assembling the vibration head makes it difficult to replace and repair the equipment, affecting the card release effect after long-term use, reducing the quality of the equipment, and making it impossible to guarantee the installation strength of the vibration head, thus affecting the stability of the equipment.

[0006] 2. When the fixed rod is subjected to force and vibration, the spring will become weak after long-term use, which will affect the performance of the equipment, result in poor working stability, make it difficult to replace the spring, and affect the use effect.

[0007] 3. The inability to enhance heat dissipation during high-intensity operation leads to a shortened lifespan of the shock absorber, affecting work quality and increasing operating costs;

[0008] 4. Poor equipment installation and positioning results in slippage of the threaded rod, affecting installation strength, leading to unstable equipment operation and impacting the unblocking effect. Summary of the Invention

[0009] To address the problems mentioned in the background section, this invention provides a drilling rig and its implementation method for oil drilling, featuring modular design, convenient maintenance, good heat dissipation, and long service life.

[0010] The present invention also provides a drilling rig for oil drilling and a method for implementing it.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a drilling rig for oil well drilling, comprising an outer tube, the surface of which is provided with a plurality of arc-shaped plates, an impact rod provided inside the outer tube, a connecting rod inserted into the bottom end of the impact rod, a fixing rod provided at the bottom end of the connecting rod, a convenient heat dissipation component installed on the upper surface of the outer tube, a limit locking component provided at the bottom end of the arc-shaped plates, a buffer and shock absorption component symmetrically installed on the surface of the fixing rod, and an impact head mounting component installed at the bottom end of the fixing rod.

[0012] Furthermore, in this invention, the vibration head mounting assembly includes a threaded cavity, a limiting device, a vibration head body, a threaded post, an abutment block, and a compression spring. The fixed rod has a threaded cavity at its inner bottom end, a compression spring is installed inside the threaded cavity, an abutment block is installed at the bottom end of the compression spring, a threaded post is installed at the bottom end of the threaded cavity, the vibration head body is fixed to the bottom end of the threaded post, and a limiting device is installed on the surface of the vibration head body.

[0013] Furthermore, in this invention, the limiting device includes a positioning tooth, a guide seat, a pull rod, a limiting spring, and a toothed ring. The bottom surface of the fixed rod is fixed with a toothed ring, and the surface of the vibrating head body is provided with a guide seat corresponding to the toothed ring. The bottom of the guide seat is fixed with a limiting spring, the upper end of the limiting spring is provided with a positioning tooth, and a pull rod is provided on one side of the positioning tooth.

[0014] Further in this invention, the buffer and shock absorption assembly includes a buffer spring, a rotating cover, a square rod, a threaded base, a threaded hole, a mounting block, and a buffer device. The mounting block is symmetrically arranged on the surface of the fixed rod, and the buffer device is arranged in the middle of the interior of the mounting block. Threaded holes are symmetrically opened at both ends of the interior of the mounting block, and a threaded base is arranged inside the threaded hole. A buffer spring is installed at the upper end of the threaded base, a rotating cover is installed at the top of the buffer spring, and a square rod is arranged on the bottom surface of the rotating cover corresponding to the threaded base.

[0015] Furthermore, in this invention, the buffer device includes a locking bolt, a movable block, a mounting hole, a damping block, a fixed stop block, and a fixed spring. The mounting block has a through mounting hole, and a locking bolt is installed inside the mounting hole. Fixed stops are symmetrically fixed on both sides of the inside of the mounting block. A fixed spring is installed on one side of the fixed stop block, and a movable block is installed on one side of the fixed spring. A damping block is installed on the surface of the movable block.

[0016] Furthermore, in this invention, the mounting block has mounting screw holes corresponding to the locking bolts inside, and the threaded base has square insertion holes corresponding to the square rod inside.

[0017] Furthermore, in this invention, the convenient heat dissipation component includes an annular heat-conducting plate, heat dissipation fins, a splicing base, a mounting groove, and a splicing device. The annular heat-conducting plate is symmetrically arranged on the upper surface of the outer tube, and a plurality of heat dissipation fins are fixed on the surface of the annular heat-conducting plate. Splicing bases are symmetrically arranged on both sides of the annular heat-conducting plate, and a mounting groove is provided inside the splicing base. A splicing device is provided inside the mounting groove.

[0018] Furthermore, in this invention, the splicing device includes a limiting baffle, an abutment spring, a limiting block, and a plug rod, wherein the plug rod is disposed through the interior of the mounting groove, a limiting baffle is fixed at one end of the plug rod, an abutment spring is installed inside the plug rod, and a limiting block is disposed at the upper end of the abutment spring.

[0019] Furthermore, in this invention, the limiting locking assembly includes a pressing block, a hook, a damping shaft, a handle, a pull ring, a T-shaped bracket, a threaded rod, and a support rod. A support rod is hinged to one side of the arc-shaped piece, and a threaded rod is connected inside the support rod. A T-shaped bracket is fixed to one side of the bottom end of the support rod. A damping shaft is provided on one side of the T-shaped bracket, and a handle is connected to one side of the damping shaft. A pull ring is movably connected to the surface of the handle via a pin. A pressing block is inserted into the inside of the T-shaped bracket, and a hook is installed on one side of the pressing block corresponding to the pull ring.

[0020] Furthermore, in this invention, a method for implementing a drilling rig for oil well drilling includes the following steps:

[0021] Step 1: Fit the arc-shaped piece onto the surface of the outer tube and connect it with bolts. After installation, adjust the length of the threaded rod to ensure stable support for the outer tube. Rotate the threaded rod to screw it into the support rod for length adjustment. After determining the length of the threaded rod, insert the clamping block into the T-shaped bracket and pass it through the slot on one side of the support rod to abut against the surface of the threaded rod. At this time, rotate the handle along the damping shaft and rotate the pull ring to make it overlap the upper end of the hook. Then rotate the handle in the opposite direction along the damping shaft to reset it. At this time, the pull ring presses down on the hook and limits the clamping block to ensure the clamping block abuts against the threaded rod, prevents the threaded rod from loosening, improves the quality of equipment use, and ensures installation strength.

[0022] Step Two: During the device's release, the vibration rod vibrates up and down, and the vibration is transmitted through the connecting rod, causing the fixed rod and the vibration head body at its bottom to vibrate. After long-term use, the vibration head body needs to be replaced. When replacing the vibration head body, insert the threaded post into the threaded cavity and screw it in. The threaded post abuts against the bottom end of the abutment block, causing the compression spring to be compressed. This ensures that the threaded post is subjected to the elastic force of the compression spring after installation. It needs to overcome the elastic force to rotate, improving the installation strength and preventing loosening. During the installation of the vibration head body, the pull rod can be pressed down to make the positioning teeth retract into the guide seat. After confirming that the vibration head body is installed, release the pull rod to reset the limit spring and push the positioning teeth into the bottom end of the toothed ring, ensuring the limiting effect of the vibration head body, further improving the installation strength, and ensuring the stability of the equipment.

[0023] Step 3: During long-term use of the fixed rod, the buffer springs on both sides may weaken, resulting in poor vibration performance and affecting the release quality. A modular design allows for the replacement of these buffer springs. Press the rotating cover to insert the square rod at its bottom into the square hole inside the threaded base. Then rotate the rotating cover to rotate the threaded base and disengage it from the threaded hole. Repeat this process to replace the weakened buffer springs, reducing equipment operating costs, ensuring convenient installation and removal of the buffer springs, and improving the overall quality of equipment use. When the fixed rod vibrates, the position of the damping blocks can be adjusted to optimize the vibration structure. Rotate the locking bolt and insert it into the mounting hole for installation. The locking bolt then abuts against the surfaces of the two sets of movable blocks and pushes them to move. The damping block on one side of the movable block extends out of the mounting block and contacts the surface of the outer tube, increasing the damping force when the fixed rod moves. The fixed spring is compressed to ensure the effectiveness of the damping blocks, ensuring the equipment can absorb excess vibration and extending its service life.

[0024] Step 4: Before using the outer tube, an annular heat-conducting plate can be installed on its surface. The splicing seats on the surfaces of the two sets of annular heat-conducting plates are then aligned. The insertion rod passes through the mounting groove. At this point, the limiting block is under force, causing the abutment spring to compress. When the limiting block is in contact with the surface of the splicing seat, the abutment spring resets, pushing the limiting block upwards and locking it onto one side of the splicing seat. This ensures the ease of splicing the two sets of splicing seats, improves the installation efficiency of the annular heat-conducting plate, and ensures that the heat generated inside the outer tube can be conducted to the heat dissipation fins through the annular heat-conducting plate during use. This increases the heat dissipation area of ​​the equipment, ensures the heat dissipation efficiency of the equipment, prevents the shock absorber from overheating under high-intensity operation, and extends the service life of the equipment.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. This invention, by setting up a vibration head mounting assembly and adopting a modular design, allows for the disassembly and replacement of damaged vibration heads, facilitating maintenance and adapting to different operational needs, improving the applicability of the equipment, ensuring the quality of equipment use, and enhancing operational stability.

[0027] 2. By setting up a buffer and shock absorption component, the present invention can replace the weakened buffer spring, reduce the operating cost of the equipment, ensure the convenience of disassembling and assembling the buffer spring, improve the quality of equipment use, and absorb excess vibration through the friction of the damping block, thereby increasing the service life of the equipment.

[0028] 3. By setting up convenient heat dissipation components, this invention ensures that the heat generated inside the outer tube during use can be conducted to the heat dissipation fins through the annular heat-conducting plate for heat dissipation, thereby increasing the heat dissipation area of ​​the equipment, ensuring the heat dissipation efficiency of the equipment, preventing the shock absorber from overheating under high-intensity operation, and extending the service life of the equipment.

[0029] 4. By setting a limiting and locking component, the present invention can limit and prevent loosening of the threaded rod, improve the stability of equipment installation, ensure the strength of use, improve the quality of equipment use, and the equipment has a simple structure, is easy to use, saves manpower, and improves the convenience of adjustment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the shock head mounting assembly structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the limiting device structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the buffer and shock absorption component structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the buffer device structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the convenient heat dissipation component structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the splicing device structure of the present invention;

[0037] Figure 8 This is a schematic diagram of the limiting and locking assembly structure of the present invention.

[0038] In the diagram: 1. Convenient heat dissipation component; 11. Annular heat conduction plate; 12. Heat dissipation fins; 13. Splicing base; 14. Mounting slot; 15. Splicing device; 151. Limiting baffle; 152. Abutment spring; 153. Limiting block; 154. Insert rod; 2. Arc-shaped piece; 3. Limiting locking component; 31. Pressing block; 32. Hook; 33. Damping shaft; 34. Handle; 35. Pull ring; 36. T-shaped bracket; 37. Threaded rod; 38. Support rod; 4. Outer tube; 5. Vibration rod; 6. Connecting rod; 7. Fixing rod; 8. Buffer and shock absorption component; 81. Buffer spring 82. Spring; 83. Rotating cover; 84. Square rod; 85. Threaded base; 86. Threaded hole; 87. Mounting block; 88. Buffer device; 871. Locking bolt; 872. Movable block; 873. Mounting hole; 874. Damping block; 875. Fixed stop block; 876. Fixed spring; 9. Vibrating head mounting assembly; 91. Threaded cavity; 92. Limiting device; 921. Positioning tooth; 922. Guide seat; 923. Pull rod; 924. Limiting spring; 925. Toothed ring; 93. Vibrating head body; 94. Threaded column; 95. Abutment block; 96. Compression spring. Detailed Implementation

[0039] 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.

[0040] Example 1

[0041] Please see Figure 1-8 The present invention provides the following technical solution: a drilling rig for oil drilling, comprising an outer tube 4, a plurality of arc-shaped plates 2 disposed on the surface of the outer tube 4, a shock rod 5 disposed inside the outer tube 4, a connecting rod 6 inserted into the bottom end of the shock rod 5, a fixing rod 7 disposed at the bottom end of the connecting rod 6, a convenient heat dissipation component 1 installed on the upper surface of the outer tube 4, a limit locking component 3 disposed at the bottom end of the arc-shaped plates 2, a buffer shock absorption component 8 symmetrically installed on the surface of the fixing rod 7, and a shock head mounting component 9 installed at the bottom end of the fixing rod 7.

[0042] Specifically, the vibration head mounting assembly 9 includes a threaded cavity 91, a limiting device 92, a vibration head body 93, a threaded post 94, an abutment block 95, and a compression spring 96. The fixed rod 7 has a threaded cavity 91 at its bottom, a compression spring 96 is installed inside the threaded cavity 91, an abutment block 95 is installed at the bottom end of the compression spring 96, a threaded post 94 is installed at the bottom end of the threaded cavity 91, and the vibration head body 93 is fixed at the bottom end of the threaded post 94. The limiting device 92 is installed on the surface of the vibration head body 93.

[0043] By adopting the above technical solution, when the equipment is unblocked, the vibration rod 5 vibrates up and down and is transmitted through the connecting rod 6, causing the fixed rod 7 and the vibration head body 93 at its bottom to vibrate. After long-term use, the vibration head body 93 needs to be replaced. When replacing the vibration head body 93 and installing it, the threaded post 94 is inserted into the threaded cavity 91 and screwed in. The threaded post 94 abuts against the bottom end of the abutment block 95, causing the compression spring 96 to be compressed. This ensures that the threaded post 94 after installation is subjected to the elastic force of the compression spring 96. It needs to overcome the elastic force to rotate, thereby improving the installation strength and preventing loosening.

[0044] Specifically, the limiting device 92 includes a positioning tooth 921, a guide seat 922, a pull rod 923, a limiting spring 924, and a toothed ring 925. The toothed ring 925 is fixed to the bottom surface of the fixing rod 7. The guide seat 922 is provided on the surface of the vibrating head body 93 corresponding to the toothed ring 925. The limiting spring 924 is fixed to the bottom of the guide seat 922. The positioning tooth 921 is provided on the upper end of the limiting spring 924. The pull rod 923 is provided on one side of the positioning tooth 921.

[0045] By adopting the above technical solution, during the installation of the vibration head body 93, the pull rod 923 can be pressed down to allow the positioning tooth 921 to retract into the guide seat 922. After confirming that the vibration head body 93 is installed, the pull rod 923 is released to allow the limit spring 924 to reset and push the positioning tooth 921 to insert into the bottom end of the toothed ring 925, ensuring the limiting effect of the vibration head body 93, further improving the installation strength, and ensuring the stability of the equipment.

[0046] In this embodiment, during device release, the vibration rod 5 vibrates up and down and is transmitted through the connecting rod 6, causing the fixed rod 7 and the vibration head body 93 at its bottom to vibrate. After long-term use, the vibration head body 93 needs to be replaced. When replacing the vibration head body 93, the threaded post 94 is inserted into the threaded cavity 91 and screwed in. The threaded post 94 abuts against the bottom end of the abutment block 95, causing the compression spring 96 to be compressed. This ensures that the threaded post 94 after installation is subjected to the elastic force of the compression spring 96. It needs to overcome the elastic force to rotate, thereby improving the installation strength and preventing loosening.

[0047] During the installation of the vibrating head body 93, the pull rod 923 can be pressed down to retract the positioning teeth 921 into the guide seat 922. After confirming that the vibrating head body 93 is installed, the pull rod 923 is released to reset the limiting spring 924 and push the positioning teeth 921 to insert into the bottom end of the toothed ring 925, ensuring the limiting effect of the vibrating head body 93, further improving the installation strength, and ensuring the stability of the equipment.

[0048] Example 2

[0049] The difference between this embodiment and embodiment 1 is that, specifically, the buffer and shock absorption assembly 8 includes a buffer spring 81, a rotating cover 82, a square rod 83, a threaded base 84, a threaded hole 85, a mounting block 86, and a buffer device 87. The mounting block 86 is symmetrically arranged on the surface of the fixed rod 7. The buffer device 87 is arranged in the middle of the interior of the mounting block 86. Threaded holes 85 are symmetrically opened at both ends of the interior of the mounting block 86. The threaded base 84 is arranged inside the threaded hole 85. The buffer spring 81 is installed at the upper end of the threaded base 84. The rotating cover 82 is installed at the top of the buffer spring 81. The square rod 83 is arranged on the bottom surface of the rotating cover 82 corresponding to the threaded base 84.

[0050] By adopting the above technical solution, the buffer springs 81 on both sides of the fixed rod 7 will become weak after long-term use, resulting in poor vibration effect and affecting the quality of unlocking. The modular design allows the buffer springs 81 to be replaced. Press the rotating cover 82 so that the square rod 83 at its bottom end is inserted into the square hole inside the threaded base 84. Then rotate the rotating cover 82 to drive the threaded base 84 to rotate and disengage from the threaded hole 85. Then replace the weak buffer springs 81 one by one, reducing the operating cost of the equipment, ensuring the convenience of disassembling and assembling the buffer springs 81, and improving the quality of equipment use.

[0051] Specifically, the buffer device 87 includes a locking bolt 871, a movable block 872, a mounting hole 873, a damping block 874, a fixed stop block 875, and a fixed spring 876. The mounting block 86 has a through mounting hole 873 inside, and the mounting hole 873 has a locking bolt 871 inside. Fixed stops 875 are symmetrically fixed on both sides inside the mounting block 86. A fixed spring 876 is installed on one side of the fixed stop block 875, and a movable block 872 is provided on one side of the fixed spring 876. The surface of the movable block 872 is provided with a damping block 874.

[0052] By adopting the above technical solution, when the fixed rod 7 vibrates, the position of the damping block 874 can be adjusted to optimize the vibration structure. The locking bolt 871 is inserted into the mounting hole 873 for installation. At this time, the locking bolt 871 abuts against the surface of the two sets of movable blocks 872 and pushes them to move. The damping block 874 on one side of the movable block 872 extends out of the mounting block 86 and contacts the surface of the outer tube 4 to increase the damping force when the fixed rod 7 moves. The fixed spring 876 is compressed to ensure the effectiveness of the damping block 874, ensuring that the equipment can absorb excess vibration and improve the service life of the equipment.

[0053] Specifically, the inside of the fixing rod 7 is provided with a mounting screw hole corresponding to the locking bolt 871, and the inside of the threaded base 84 is provided with a square insertion hole corresponding to the square rod 83.

[0054] By adopting the above technical solution, the ease of disassembling and assembling the threaded base 84 is ensured, and the stability of the installation of the locking bolt 871 is guaranteed.

[0055] In this embodiment, during long-term use of the fixed rod 7, the buffer springs 81 on both sides may become weak, resulting in poor vibration effect and affecting the quality of unlocking. The modular design allows for the replacement of the buffer springs 81. Press the rotating cover 82 to insert the square rod 83 at its bottom end into the square hole inside the threaded base 84. Then rotate the rotating cover 82 to drive the threaded base 84 to rotate and disengage from the threaded hole 85. Then replace the weak buffer springs 81 one by one, reducing the operating cost of the equipment, ensuring the convenience of disassembling and assembling the buffer springs 81, and improving the quality of equipment use.

[0056] When the fixed rod 7 vibrates, the position of the damping block 874 can be adjusted to optimize the vibration structure. The locking bolt 871 is rotated and inserted into the mounting hole 873 for installation. At this time, the locking bolt 871 abuts against the surface of the two sets of movable blocks 872 and pushes them to move. The damping block 874 on one side of the movable block 872 extends out of the mounting block 86 and contacts the surface of the outer tube 4 to increase the damping force when the fixed rod 7 moves. The fixed spring 876 is compressed to ensure the effectiveness of the damping block 874, ensuring that the equipment can absorb excess vibration and improve the service life of the equipment.

[0057] Example 3

[0058] The difference between this embodiment and embodiments 1 and 2 is that, specifically, the convenient heat dissipation component 1 includes an annular heat-conducting plate 11, heat dissipation fins 12, splicing base 13, mounting groove 14, and splicing device 15. The annular heat-conducting plate 11 is symmetrically arranged on the upper surface of the outer tube 4. Several heat dissipation fins 12 are fixed on the surface of the annular heat-conducting plate 11. Splicing bases 13 are symmetrically arranged on both sides of the annular heat-conducting plate 11. The mounting groove 14 is provided inside the splicing base 13. The splicing device 15 is provided inside the mounting groove 14.

[0059] By adopting the above technical solution, an annular heat-conducting plate 11 can be installed on the surface of the outer tube 4 before use, so as to ensure that the heat generated inside the outer tube 4 can be conducted to the heat dissipation fins 12 through the annular heat-conducting plate 11 for heat dissipation when the outer tube 4 is in use, thereby increasing the heat dissipation area of ​​the equipment, ensuring the heat dissipation efficiency of the equipment, preventing the shock absorber from overheating under high-intensity operation, and extending the service life of the equipment.

[0060] Specifically, the splicing device 15 includes a limiting baffle 151, an abutment spring 152, a limiting block 153, and a plug rod 154. The plug rod 154 is installed through the inside of the mounting groove 14. One end of the plug rod 154 is fixed with the limiting baffle 151. The abutment spring 152 is installed inside the plug rod 154. The upper end of the abutment spring 152 is provided with the limiting block 153.

[0061] By adopting the above technical solution, the splicing seats 13 on the surfaces of the two sets of annular heat-conducting plates 11 are connected, and then the insertion rod 154 passes through the mounting groove 14. At this time, the limiting block 153 is subjected to force, which compresses the abutment spring 152. When the limiting baffle 151 is attached to the surface of the splicing seat 13, the abutment spring 152 resets and pushes the limiting block 153 to move upward and lock onto one side of the splicing seat 13, ensuring the convenience of splicing the two sets of splicing seats 13 and improving the installation efficiency of the annular heat-conducting plate 11.

[0062] In this embodiment, before use, an annular heat-conducting plate 11 can be installed on the surface of the outer tube 4. The splicing seats 13 on the surfaces of the two sets of annular heat-conducting plates 11 are connected, and then the insertion rod 154 passes through the mounting groove 14. At this time, the limiting block 153 is subjected to force, which compresses the abutment spring 152. When the limiting block 151 is attached to the surface of the splicing seat 13, the abutment spring 152 resets and pushes the limiting block 153 to move up and lock onto one side of the splicing seat 13, ensuring the convenience of splicing the two sets of splicing seats 13, improving the installation efficiency of the annular heat-conducting plate 11, and ensuring that the heat generated inside the outer tube 4 can be conducted to the heat dissipation fins 12 through the annular heat-conducting plate 11 for heat dissipation when the outer tube 4 is in use, increasing the heat dissipation area of ​​the equipment, ensuring the heat dissipation efficiency of the equipment, preventing the shock absorber from overheating under high-intensity operation, and extending the service life of the equipment.

[0063] Example 4

[0064] The difference between this embodiment and the above embodiments is that, specifically, the limiting locking assembly 3 includes a pressing block 31, a hook 32, a damping shaft 33, a handle 34, a pull ring 35, a T-shaped bracket 36, a threaded rod 37, and a support rod 38. The support rod 38 is hinged to one side of the arc-shaped piece 2, and the threaded rod 37 is connected inside the support rod 38. A T-shaped bracket 36 is fixed to one side of the bottom end of the support rod 38. A damping shaft 33 is provided on one side of the T-shaped bracket 36, and a handle 34 is connected to one side of the damping shaft 33. A pull ring 35 is movably connected to the surface of the handle 34 via a pin. A pressing block 31 is inserted into the inside of the T-shaped bracket 36, and a hook 32 is installed on one side of the pressing block 31 corresponding to the pull ring 35.

[0065] In this embodiment, the arc-shaped piece 2 is fitted onto the surface of the outer tube 4 and connected with bolts. After installation, the length of the threaded rod 37 can be adjusted to ensure stable support for the outer tube 4. The threaded rod 37 is rotated to screw into the support rod 38 for length adjustment. After determining the length of the threaded rod 37, the clamping block 31 is inserted into the T-shaped bracket 36 and passes through the slot on one side of the support rod 38 to abut against the surface of the threaded rod 37. At this time, the handle 34 is rotated along the damping shaft 33, and the pull ring 35 is rotated to overlap the upper end of the hook 32. Then, the handle 34 is rotated in the opposite direction along the damping shaft 33 to reset it. At this time, the pull ring 35 presses down on the hook 32 and limits the clamping block 31, ensuring the abutment effect of the clamping block 31 on the threaded rod 37, preventing the threaded rod 37 from loosening, improving the quality of equipment use, and ensuring installation strength.

[0066] The structure and operating principle of the arc-shaped plate 2, outer tube 4, shock rod 5, connecting rod 6 and fixing rod 7 in this invention have been disclosed in a drilling shock device for oil wells disclosed in Chinese patent application number 202322946834.9.

[0067] The working principle and usage process of this invention: When using this invention, the arc-shaped piece 2 is sleeved on the surface of the outer tube 4 and connected and installed by bolts. After installation, the length of the threaded rod 37 can be adjusted to ensure stable support for the outer tube 4. The threaded rod 37 is rotated to screw into the inside of the support rod 38 for length adjustment. After determining the length of the threaded rod 37, the clamping block 31 is inserted into the inside of the T-shaped bracket 36 and passes through the slot on one side of the support rod 38 to abut against the surface of the threaded rod 37. At this time, the handle 34 is rotated along the damping shaft 33, and the pull ring 35 is rotated to overlap the upper end of the hook 32. Then, the handle 34 is rotated in the opposite direction along the damping shaft 33 to reset it. At this time, the pull ring 35 presses down on the hook 32 and limits the clamping block 31, ensuring the abutment effect of the clamping block 31 on the threaded rod 37, preventing the threaded rod 37 from loosening, improving the quality of equipment use, and ensuring installation strength.

[0068] When the device is unblocked, the vibration rod 5 vibrates up and down and is transmitted through the connecting rod 6, causing the fixed rod 7 and the vibration head body 93 at its bottom to vibrate. After long-term use, the vibration head body 93 needs to be replaced. When replacing the vibration head body 93 and installing it, the threaded post 94 is inserted into the threaded cavity 91 and screwed in. The threaded post 94 abuts against the bottom end of the abutment block 95 and compresses the compression spring 96. This ensures that the threaded post 94 is subjected to the elastic force of the compression spring 96 after installation. It is necessary to overcome the elastic force to rotate, thereby improving the installation strength and preventing loosening.

[0069] During the installation of the vibrating head body 93, the pull rod 923 can be pressed down to allow the positioning teeth 921 to retract into the guide seat 922. After confirming that the vibrating head body 93 is installed, the pull rod 923 is released to allow the limiting spring 924 to reset and push the positioning teeth 921 to insert into the bottom end of the toothed ring 925, ensuring the limiting effect of the vibrating head body 93, further improving the installation strength, and ensuring the stability of the equipment.

[0070] When the fixed rod 7 is used for a long time, the buffer springs 81 on both sides will become weak, resulting in poor vibration effect and affecting the quality of unlocking. The modular design allows the buffer springs 81 to be replaced. Press the rotating cover 82 so that the square rod 83 at the bottom is inserted into the square hole inside the threaded base 84. Then rotate the rotating cover 82 to drive the threaded base 84 to rotate and disengage from the threaded hole 85. Then replace the weak buffer springs 81 one by one, reducing the operating cost of the equipment, ensuring the convenience of disassembling and assembling the buffer springs 81, and improving the quality of equipment use.

[0071] When the fixed rod 7 vibrates, the position of the damping block 874 can be adjusted to optimize the vibration structure. The locking bolt 871 is rotated and inserted into the mounting hole 873 for installation. At this time, the locking bolt 871 abuts against the surface of the two sets of movable blocks 872 and pushes them to move. The damping block 874 on one side of the movable block 872 extends out of the mounting block 86 and contacts the surface of the outer tube 4 to increase the damping force when the fixed rod 7 moves. The fixed spring 876 is compressed to ensure the effectiveness of the damping block 874, ensuring that the equipment can absorb excess vibration and improve the service life of the equipment.

[0072] Before use, an annular heat-conducting plate 11 can be installed on the surface of the outer tube 4. The splicing seats 13 on the surfaces of the two sets of annular heat-conducting plates 11 are connected, and then the insertion rod 154 passes through the mounting groove 14. At this time, the limiting block 153 is subjected to force, which compresses the abutment spring 152. When the limiting plate 151 is attached to the surface of the splicing seat 13, the abutment spring 152 resets and pushes the limiting block 153 to move up and lock onto one side of the splicing seat 13, ensuring the convenience of splicing the two sets of splicing seats 13, improving the installation efficiency of the annular heat-conducting plate 11, and ensuring that the heat generated inside the outer tube 4 can be conducted to the heat dissipation fins 12 through the annular heat-conducting plate 11 for heat dissipation when the outer tube 4 is in use, increasing the heat dissipation area of ​​the equipment, ensuring the heat dissipation efficiency of the equipment, preventing the shock absorber from overheating under high-intensity operation, and extending the service life of the equipment.

[0073] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling rig for oil wells, comprising an outer tube (4), wherein a plurality of arc-shaped plates (2) are provided on the surface of the outer tube (4), and a shock rod (5) is provided inside the outer tube (4), wherein a connecting rod (6) is inserted into the bottom end of the shock rod (5), and a fixing rod (7) is provided at the bottom end of the connecting rod (6), characterized in that: The upper surface of the outer tube (4) is equipped with a convenient heat dissipation component (1), the bottom end of the arc plate (2) is provided with a limit locking component (3), the surface of the fixing rod (7) is symmetrically equipped with a buffer shock absorption component (8), and the bottom end of the fixing rod (7) is equipped with a shock head mounting component (9). The shock head mounting assembly (9) includes a threaded cavity (91), a limiting device (92), a shock head body (93), a threaded post (94), an abutment block (95), and a compression spring (96). The bottom of the fixed rod (7) is provided with a threaded cavity (91), the inside of the threaded cavity (91) is provided with a compression spring (96), the bottom of the compression spring (96) is provided with an abutment block (95), the bottom of the threaded cavity (91) is provided with a threaded post (94), the bottom of the threaded post (94) is fixed with the shock head body (93), and the surface of the shock head body (93) is provided with a limiting device (92). The buffer and shock absorption assembly (8) includes a buffer spring (81), a rotating cover (82), a square rod (83), a threaded base (84), a threaded hole (85), a mounting block (86), and a buffer device (87). The mounting block (86) is symmetrically arranged on the surface of the fixed rod (7). The buffer device (87) is arranged in the middle of the interior of the mounting block (86). The threaded holes (85) are symmetrically opened at both ends of the interior of the mounting block (86). The threaded base (84) is arranged inside the threaded hole (85). The buffer spring (81) is installed at the upper end of the threaded base (84). The rotating cover (82) is installed at the top of the buffer spring (81). The square rod (83) is arranged on the bottom surface of the rotating cover (82) corresponding to the threaded base (84).

2. The drilling rig for oil well drilling according to claim 1, characterized in that: The limiting device (92) includes a positioning tooth (921), a guide seat (922), a pull rod (923), a limiting spring (924), and a toothed ring (925). The bottom surface of the fixed rod (7) is fixed with a toothed ring (925). The surface of the vibrating head body (93) is provided with a guide seat (922) corresponding to the toothed ring (925). The bottom of the guide seat (922) is fixed with a limiting spring (924). The upper end of the limiting spring (924) is provided with a positioning tooth (921). A pull rod (923) is provided on one side of the positioning tooth (921).

3. The drilling rig for oil well drilling according to claim 1, characterized in that: The buffer device (87) includes a locking bolt (871), a movable block (872), a mounting hole (873), a damping block (874), a fixed stop (875), and a fixed spring (876). The mounting block (86) has a through mounting hole (873) inside, and a locking bolt (871) is installed inside the mounting hole (873). Fixed stops (875) are symmetrically fixed on both sides inside the mounting block (86). A fixed spring (876) is installed on one side of the fixed stop (875), and a movable block (872) is installed on one side of the fixed spring (876). A damping block (874) is installed on the surface of the movable block (872).

4. The drilling rig for oil well drilling according to claim 3, characterized in that: The fixing rod (7) has a mounting screw hole corresponding to the locking bolt (871) inside, and the threaded base (84) has a square insertion hole corresponding to the square rod (83) inside.

5. The drilling rig for oil well drilling according to claim 1, characterized in that: The convenient heat dissipation component (1) includes an annular heat-conducting plate (11), heat dissipation fins (12), splicing base (13), mounting groove (14) and splicing device (15). The annular heat-conducting plate (11) is symmetrically arranged on the upper surface of the outer tube (4). Several heat dissipation fins (12) are fixed on the surface of the annular heat-conducting plate (11). Splicing bases (13) are symmetrically arranged on both sides of the annular heat-conducting plate (11). The mounting groove (14) is provided inside the splicing base (13). The splicing device (15) is provided inside the mounting groove (14).

6. The drilling rig for oil well drilling according to claim 5, characterized in that: The splicing device (15) includes a limiting baffle (151), an abutment spring (152), a limiting block (153), and a plug rod (154). The plug rod (154) is installed through the inside of the mounting groove (14). One end of the plug rod (154) is fixed with the limiting baffle (151). The abutment spring (152) is installed inside the plug rod (154). The upper end of the abutment spring (152) is provided with a limiting block (153).

7. The drilling rig for oil well drilling according to claim 1, characterized in that: The limiting locking assembly (3) includes a pressing block (31), a hook (32), a damping shaft (33), a handle (34), a pull ring (35), a T-shaped bracket (36), a threaded rod (37), and a support rod (38). The support rod (38) is hinged to one side of the arc-shaped piece (2). The threaded rod (37) is connected inside the support rod (38). The T-shaped bracket (36) is fixed to one side of the bottom end of the support rod (38). The damping shaft (33) is provided on one side of the T-shaped bracket (36). The handle (34) is connected to one side of the damping shaft (33). The pull ring (35) is movably connected to the surface of the handle (34) through a pin. The pressing block (31) is inserted into the inside of the T-shaped bracket (36). The hook (32) is installed on one side of the pressing block (31) corresponding to the pull ring (35).

8. A method for implementing a drilling rig for oil well drilling according to any one of claims 1-7, characterized in that: Includes the following steps: Step 1: Fit the arc-shaped piece (2) onto the surface of the outer tube (4) and connect it with bolts. After installation, adjust the length of the threaded rod (37) to ensure stable support for the outer tube (4). Rotate the threaded rod (37) to screw it into the support rod (38) for length adjustment. After determining the length of the threaded rod (37), insert the clamping block (31) into the T-shaped bracket (36) and pass through the slot on one side of the support rod (38) to abut against the threaded rod (37). On the surface, at this time, rotate the handle (34) along the damping shaft (33) and rotate the pull ring (35) to make it overlap the upper end of the hook (32). Then rotate the handle (34) in the opposite direction along the damping shaft (33) to reset it. At this time, the pull ring (35) presses down on the hook (32) and limits the clamping block (31) to ensure the clamping block (31) abuts against the threaded rod (37), prevents the threaded rod (37) from loosening, improves the quality of equipment use, and ensures installation strength. Step 2: When the device is unblocked, the vibration rod (5) vibrates up and down and is transmitted through the connecting rod (6), causing the fixed rod (7) and the vibration head body (93) at its bottom to vibrate. After long-term use, the vibration head body (93) needs to be replaced. When replacing the vibration head body (93) and installing it, the threaded column (94) is inserted into the threaded cavity (91) and screwed. The threaded column (94) abuts against the bottom end of the abutment block (95), causing the compression spring (96) to be compressed. This ensures that the threaded column (94) after installation is subjected to the spring force of the compression spring (96). The force required to overcome the elastic force is needed to rotate, thus improving the installation strength and preventing loosening. During the installation of the vibrating head body (93), the pull rod (923) is pressed down to make the positioning tooth (921) retract into the guide seat (922). After confirming that the vibrating head body (93) is installed, the pull rod (923) is released to make the limit spring (924) reset and push the positioning tooth (921) to be inserted into the bottom end of the toothed ring (925), ensuring the limiting effect of the vibrating head body (93), further improving the installation strength, and ensuring the stability of the equipment. Step 3: During long-term use of the fixed rod (7), the buffer springs (81) on both sides may become weak, resulting in poor vibration performance and affecting the quality of unlocking. A modular design is adopted to replace the buffer springs (81). Press the rotating cover (82) to insert the square rod (83) at its bottom end into the square hole inside the threaded base (84). Then rotate the rotating cover (82) to drive the threaded base (84) to rotate and disengage from the threaded hole (85). Then replace the weak buffer springs (81) one by one to reduce the operating cost of the equipment, ensure the convenience of disassembling and assembling the buffer springs (81), and improve the quality of equipment use. When the fixed rod (7) vibrates, the position of the damping block (874) can be adjusted to optimize the vibration structure. The locking bolt (871) is inserted into the mounting hole (873) for installation. At this time, the locking bolt (871) abuts against the surface of the two sets of movable blocks (872) and pushes them to move. The damping block (874) on one side of the movable block (872) extends out of the mounting block (86) and contacts the surface of the outer tube (4) to increase the damping force when the fixed rod (7) moves. The fixed spring (876) is compressed to ensure the effect of the damping block (874), ensuring that the equipment absorbs excess vibration and improves the service life of the equipment. Step 4: Before using the outer tube (4), install the annular heat-conducting plate (11) on its surface, connect the splicing seats (13) on the surfaces of the two sets of annular heat-conducting plates (11), and then pass the insertion rod (154) through the mounting groove (14). At this time, the limiting block (153) is under force, causing the abutment spring (152) to compress. When the limiting block (151) is attached to the surface of the splicing seat (13), the abutment spring (152) resets and pushes the limiting block (153) to move up and lock onto one side of the splicing seat (13), ensuring the convenience of splicing the two sets of splicing seats (13), improving the installation efficiency of the annular heat-conducting plate (11), ensuring that when the outer tube (4) is in use, the heat generated inside it is conducted to the heat dissipation fins (12) through the annular heat-conducting plate (11) for heat dissipation, increasing the heat dissipation area of ​​the equipment, ensuring the heat dissipation efficiency of the equipment, preventing the shocker from overheating under high-intensity work, and extending the service life of the equipment.

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