High-performance non-magnetic pressure-bearing drill rod

Abstract

The utility model relates to the technical field of non-magnetic pressure-bearing drill rods, and discloses a high-performance non-magnetic pressure-bearing drill rod which comprises a drill bit and a first drill rod, a first connecting block is fixedly connected to the periphery of the drill rod, a dismounting assembly is installed in the first connecting block, and a protection assembly is installed on the periphery of the first drill rod. The dismounting assembly comprises a pull rod, the periphery of the pull rod is slidably connected with the interior of the first connecting block, a second clamping groove is formed in the first connecting block, a second clamping block is fixedly connected to the top of the drill bit, and the second clamping block is connected with the pull rod and the second clamping groove in a clamped mode. According to the utility model, the pull rod is pulled, the pull rod is separated from the clamping block through the cooperation of the spring and the gasket, and then the drill bit can be easily dismounted or mounted through rotation and clamping operation, the drill bit of the drill rod is simple and convenient to replace, the flow is clear without complex procedures, the time is saved, the replacement efficiency is improved, and efficient construction is assisted.

Description

Technical Field

[0001] The utility model relates to the technical field of non-magnetic pressure-bearing drill rods, in particular to a high-performance non-magnetic pressure-bearing drill rod. Background Art

[0002] High-performance non-magnetic pressure-bearing drill pipe is of great significance in drilling operations. In oil and natural gas extraction and geological exploration, its non-magnetic characteristics "escort" measuring instruments such as MWD and LWD, eliminate magnetic interference, ensure accurate wellbore trajectory measurement, and help directional drilling to be carried out efficiently. Its excellent pressure-bearing performance allows it to directly withstand the high pressure of the formation and drilling fluid, and it remains stable in harsh environments such as deep-sea drilling to avoid damage. During operation, it stably supports the well wall, reduces the risk of collapse, maintains the original magnetic appearance of the formation, and provides reliable data support for geological research and mineral exploration;

[0003] The high-performance non-magnetic pressure-bearing drill pipe currently used is first tightly threaded with the drill bit and drilling tools during the early geological survey of construction projects. The drill pipe is then driven by the drilling rig to rotate at high speed. Relying on high-quality materials and sophisticated structure, it efficiently transmits torque, driving the drill bit to break the rock and soil. At the same time, the internal part serves as a drilling fluid channel, smoothly transporting liquid, cooling the drill bit and carrying drill cuttings back to the ground.

[0004] Although the above-mentioned drill rod realizes the preliminary geological survey of the construction project, due to the need to understand the shallow stratum structure in a relatively short period of time in the preliminary geological survey stage of the construction project in order to evaluate the bearing capacity of the foundation, etc., it is usually necessary to replace different types of drill bits according to the hardness of different strata. At present, the drill bit and drill rod connected by threads are relatively troublesome to replace, which reduces the work efficiency of the survey. Therefore, a high-performance non-magnetic pressure-bearing drill rod is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high-performance non-magnetic pressure-bearing drill rod, which aims to improve the problem of the troublesome drill bit replacement during the early geological survey of construction projects in the prior art.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A high-performance non-magnetic pressure-bearing drill pipe, comprising a drill bit and a drill pipe, wherein a connecting block is fixedly connected to the outer periphery of the drill pipe, a disassembly assembly is installed inside the connecting block, and a protective assembly is installed on the outer periphery of the drill pipe; the disassembly assembly includes a pull rod, the outer periphery of the pull rod is slidably connected to the inner periphery of the connecting block, a second clamping groove is formed inside the connecting block, a second clamping block is fixedly connected to the top of the drill bit, and the second clamping block is mutually clamped with the pull rod and the second clamping groove;

[0008] As a further description of the above technical solution:

[0009] The protection assembly includes a wear-resistant block, the inner side of which is rotatably connected to the outer periphery of the drill rod;

[0010] As a further description of the above technical solution:

[0011] A slide groove is provided inside the wear-resistant block, and a slider is fixedly connected to the outer periphery of the drill rod 1, and the slider and the slide groove are mutually engaged;

[0012] As a further description of the above technical solution:

[0013] A gasket is fixedly connected to the outer periphery of the pull rod, and a spring is fixedly connected to the top of the gasket;

[0014] As a further description of the above technical solution:

[0015] The outer periphery of the pull rod is fixedly connected with a clamping rod, the side surface of the drill rod 1 is fixedly connected with a support block, and the clamping rod and the support block are clamped with each other;

[0016] As a further description of the above technical solution:

[0017] The outer periphery of the wear-resistant block and the drill rod 1 are sprayed with a wear-resistant layer, and the wear-resistant layer is specifically made of tungsten carbide;

[0018] As a further description of the above technical solution:

[0019] The outer circumference of the drill rod 1 is provided with a thread groove, and the outer circumference of the drill rod 1 is threadedly connected to the drill rod 2;

[0020] As a further description of the above technical solution:

[0021] The outer periphery of the drill rod 1 is fixedly connected with a connecting block 2, a clamping groove 1 is provided inside the connecting block 2, and the side surface of the drill rod 2 is fixedly connected with a clamping block 1, and the clamping block 1 and the clamping groove 1 are clamped with each other.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by pulling the pull rod, with the help of spring and gasket, the pull rod is separated from the clamping block, and the drill bit can be removed or installed through the steps of rotation and clamping, which makes it easy to replace the drill bit with the drill rod, the operation is simple and the process is clear, and complicated processes are avoided, which greatly saves time, improves the efficiency of operation replacement, and helps efficient construction.

[0024] 2. In the present invention, when the drill rod is working, the slider and the slide groove work together to make it rotate in the wear-resistant block. The wear-resistant block contacts the ground first, cleverly separating the drill rod from the ground, greatly reducing friction loss, effectively protecting the drill rod, reducing wear, ensuring long-term stable use, and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a high-performance non-magnetic pressure-bearing drill rod proposed by the utility model;

[0026] Figure 2 This is a schematic structural diagram of a cross-section of a connecting block of a high-performance non-magnetic pressure-bearing drill pipe proposed in the present invention;

[0027] Figure 3 This is a schematic structural diagram of a high-performance wear-resistant block for a non-magnetic pressure-bearing drill pipe proposed by the present invention;

[0028] Figure 4 This is a structural schematic diagram of two cross sections of a high-performance non-magnetic pressure-bearing drill rod proposed by the utility model.

[0029] Legend:

[0030] 1. Drill bit; 2. Connecting block 1; 3. Wear-resistant block; 4. Drill rod 1; 5. Threaded groove; 6. Drill rod 2; 7. Support block; 8. Connecting rod; 9. Spring; 10. Gasket; 11. Pull rod; 12. Block 2; 13. Wear-resistant layer; 14. Slider; 15. Slide; 16. Connecting block 2; 17. Slot 1; 18. Block 1; 19. Slot 2. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 2The utility model provides an embodiment of a high-performance non-magnetic pressure-bearing drill rod, including a drill bit 1 and a drill rod 4. The outer periphery of the drill rod 4 is fixedly connected to a connecting block 2. A disassembly component is installed inside the connecting block 2 to facilitate the replacement of the drill bit 1. A protective component is installed on the outer periphery of the drill rod 4; for protecting the drill rod, the disassembly component includes a pull rod 11. The outer periphery of the pull rod 11 is slidably connected to the inner periphery of the connecting block 2. A card slot 2 19 is opened inside the connecting block 2. The top of the drill bit 1 The drill bit 1 is fixedly connected with a clamping block 2 12, which is engaged with the pull rod 11 and the clamping slot 2 19. By moving the drill bit 1, the clamping block 2 12 is matched with the clamping slot 2 19. At this time, the drill bit 1 is rotated so that the clamping block 2 12 and the clamping slot 2 19 are engaged with each other. At this time, the pull rod 11 is released, and the pull rod 11 will be engaged with the clamping block 2 12. In this way, the drill bit 1 and the drill rod 1 4 are installed. Similarly, the drill bit 1 can be disassembled, which facilitates the quick replacement of the drill bit 1 and improves work efficiency.

[0033] Reference Figure 1 and Figure 3 The protective component includes a wear-resistant block 3, the inner side of the wear-resistant block 3 is rotatably connected to the outer periphery of the drill rod 4. When the drill rod 4 is working, the drill rod 4 will rotate inside the wear-resistant block 3. At this time, the wear-resistant block 3 will contact the geological surface, reducing the contact and friction between the drill rod 4 and the geological surface, greatly improving the service life of the drill rod. A slide groove 15 is provided inside the wear-resistant block 3, and a slider 14 is fixedly connected to the outer periphery of the drill rod 4. The slider 14 and the slide groove 15 are mutually engaged, which facilitates the rotation of the drill rod 4 inside the wear-resistant block 3 while fixing the position of the wear-resistant block 3 on the outer periphery of the drill rod 4.

[0034] Reference Figure 1 、 Figure 2 and Figure 4The outer periphery of the pull rod 11 is fixedly connected with a gasket 10, and the top of the gasket 10 is fixedly connected with a spring 9. Under the action of the gasket 10 and the spring 9, the pull rod 11 is more firmly connected to the clamping block 2 12, thereby improving the stability of the installation of the drill rod 4 and the drill bit 1. The outer periphery of the pull rod 11 is fixedly connected with a clamping rod 8, and the side of the drill rod 4 is fixedly connected with a support block 7. The clamping rod 8 and the support block 7 are clamped with each other. When the pull rod 11 is pulled, the pull rod 11 can be rotated so that the support block 7 supports the clamping rod 8, further facilitating the replacement of the drill bit 1. The outer periphery of the wear-resistant block 3 and the drill rod 4 are sprayed with a wear-resistant layer 13. The wear-resistant layer 13 is specifically made of tungsten carbide. Tungsten carbide is a compound with very high hardness and good wear resistance, corrosion resistance and high temperature resistance. Spraying a tungsten carbide coating on the surface of the drill rod can greatly improve the wear resistance of the drill rod in harsh environments. It can withstand the friction of hard materials such as rocks, reduce the wear of the drill rod surface, and thus further improve the service life of the drill rod. A threaded groove 5 is provided on the outer periphery of the drill rod 4, and the outer periphery of the drill rod 4 is threadedly connected to the drill rod 2 6. Under the action of the threaded groove 5, it is convenient to connect the drill rod 1 4 and the drill rod 2 6, so as to increase the drilling depth. The outer periphery of the drill rod 4 is fixedly connected to the connecting block 2 16, and the interior of the connecting block 2 16 is provided with a card slot 17. A card block 18 is fixedly connected to the side of the drill rod 2 6, and the card block 18 and the card slot 17 are engaged with each other. Under the action of the card block 18 and the card slot 17, the connection between the drill rod 1 4 and the drill rod 2 6 is more firmly established.

[0035] Working principle: First, when the drill bit 1 needs to be replaced, by pulling the pull rod 11, the spring 9 will shrink under the action of the gasket 10, so that the pull rod 11 is disengaged from the clamping block 2 12. At this time, rotating the pull rod 11 will clamp the connecting rod 8 with the support block 7, and then rotate the drill bit 1 to disengage the clamping block 2 12 from the clamping groove 2 19, so as to realize the disassembly of the drill bit 1. After the drill bit 1 is moved to the inside of the connecting block 1 2, the drill bit 1 is rotated so that the clamping block 2 12 and the clamping groove 2 19 are clamped with each other. At this time, the pull rod 11 is pulled and The rotation causes the coupling rod 8 to disengage from the supporting block 7. At this time, the pull rod 11 is released. Under the action of the spring 9 returning to its original position, the pull rod 11 will engage with the clamping block 2 12, thereby realizing the replacement of the drill bit 1 and improving work efficiency. Secondly, when the drill rod is working, it will rotate inside the wear-resistant block 3 under the action of the slider 14 and the slide groove 15. At this time, the wear-resistant block 3 will come into contact with the drilled ground, thereby reducing the contact between the drill rod and the ground, making the drill rod less likely to be worn during work, and improving the service life of the drill rod.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-performance non-magnetic pressure-bearing drill pipe, comprising a drill bit (1) and a drill pipe (4), characterized in that: The outer periphery of the drill rod (4) is fixedly connected to a connecting block (2), a disassembly component is installed inside the connecting block (2), and a protective component is installed on the outer periphery of the drill rod (4); The disassembly assembly includes a pull rod (11), the outer periphery of the pull rod (11) is slidably connected to the interior of the connecting block (2), a second clamping groove (19) is provided inside the connecting block (2), and the top of the drill bit (1) is fixedly connected to a second clamping block (12), and the second clamping block (12) is mutually clamped with the pull rod (11) and the second clamping groove (19).

2. The high-performance non-magnetic pressure-bearing drill pipe according to claim 1, characterized in that: The protection assembly comprises a wear-resistant block (3), the inner side of which is rotatably connected to the outer periphery of the drill rod (4).

3. The high-performance non-magnetic pressure-bearing drill pipe according to claim 2, characterized in that: A slide groove (15) is provided inside the wear-resistant block (3), and a slider (14) is fixedly connected to the outer periphery of the drill rod (4), and the slider (14) and the slide groove (15) are mutually engaged.

4. The high-performance non-magnetic pressure-bearing drill pipe according to claim 1, characterized in that: A gasket (10) is fixedly connected to the outer periphery of the pull rod (11), and a spring (9) is fixedly connected to the top of the gasket (10).

5. The high-performance non-magnetic pressure-bearing drill pipe according to claim 1, characterized in that: The outer periphery of the pull rod (11) is fixedly connected with a clamping rod (8), the side surface of the drill rod (4) is fixedly connected with a support block (7), and the clamping rod (8) and the support block (7) are clamped with each other.

6. The high-performance non-magnetic pressure-bearing drill pipe according to claim 2, characterized in that: The outer peripheries of the wear-resistant block (3) and the drill rod (4) are both sprayed with a wear-resistant layer (13), and the wear-resistant layer (13) is specifically made of tungsten carbide.

7. The high-performance non-magnetic pressure-bearing drill pipe according to claim 1, characterized in that: The outer periphery of the drill rod 1 (4) is provided with a thread groove (5), and the outer periphery of the drill rod 1 (4) is threadedly connected to the drill rod 2 (6).

8. The high-performance non-magnetic pressure-bearing drill pipe according to claim 7, characterized in that: The outer periphery of the drill rod 1 (4) is fixedly connected with a connecting block 2 (16), the interior of the connecting block 2 (16) is provided with a clamping groove 1 (17), and the side surface of the drill rod 2 (6) is fixedly connected with a clamping block 1 (18), and the clamping block 1 (18) and the clamping groove 1 (17) are clamped with each other.

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