Abrasion-resistant heavy weight drill rod black and white abrasive drill

Abstract

The utility model belongs to the technical field of heavy weight drill rods, in particular to a wear-resistant heavy weight drill rod black and white abrasive drill, which is characterized in that a connecting thread is fixedly connected inside a heavy weight drill rod body, a wear-resistant component is mounted and connected on the surface of the heavy weight drill rod body, a fixing component is movably connected at the bottom end of the heavy weight drill rod body, and a black and white abrasive drill bit is fixedly connected at the bottom end of the fixing component. The surface of the heavy weight drill rod body is connected with a wear-resistant belt, and the surface of the wear-resistant belt is in contact connection with an abutting block. The wear-resistant belt makes contact with the inner wall of a drilled well, the wear-resistant belt can push the abutting block to slide in the heavy weight drill pipe body under vibration, then the abutting block slides to drive the connecting base to press the connecting rod, and the connecting rod rotates at one end of the connecting base under pressure to push the movable block to slide on the surface of the fixed rod. And meanwhile, the movable block slides to compress the connecting spring, and the connecting spring rebounds after being compressed, so that the effect of buffering vibration energy on the surface of the wear-resistant belt is achieved, and the service life of the wear-resistant belt is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of weighted drill rods, in particular to a wear-resistant weighted drill rod black and white grinding drill. Background Art

[0002] Drill pipe is a steel pipe with a corrugated tail, used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the well. The purpose of the drill pipe is to transport drilling mud to the drill bit and raise, lower or rotate the bottom hole device together with the drill bit. The drill pipe must be able to withstand huge internal and external pressure, twisting, bending and vibration. In the process of oil and gas extraction and refining, drill pipe can be used many times. Drill pipe is divided into three categories: square drill pipe, drill pipe and heavy drill pipe. The connection order is square drill pipe (1 piece) + drill pipe (n pieces, determined by the well depth) + heavy drill pipe (n pieces, determined by the drill tool assembly design). Drill pipe is needed in the drilling process of oil, natural gas, water sources and mineral deposits.

[0003] The existing technology has the following problems:

[0004] 1. The wear-resistant belt set in the middle of the traditional heavy-weight drill pipe with black and white grinding drill structure will shift during use. The impact between the tempered structure of the wear-resistant belt and the inner wall of the drilling will affect the service life of the wear-resistant belt, making the wear-resistant quality of the device unable to be guaranteed.

[0005] 2. The traditional black and white grinding drill structure of the weighted drill rod is connected to the drill bit using a thread set at the bottom of the drill rod. The drill bit connection is not stable enough during high-intensity operation, which makes the practicality of the device unable to be reflected. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a wear-resistant and weighted drill rod black and white grinding drill, which solves the problems raised in the background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A wear-resistant weighted drill rod black and white grinding drill, comprising a weighted drill rod body, the interior of the weighted drill rod body is fixedly connected with a connecting thread, the surface of the weighted drill rod body is mounted and connected with a wear-resistant component, the bottom end of the weighted drill rod body is movably connected with a fixing component, the bottom end of the fixing component is fixedly connected with a black and white grinding drill bit, the surface of the weighted drill rod body is mounted and connected with a wear-resistant belt, the surface of the wear-resistant belt is contacted and connected with an abutment block, one end of the abutment block is located inside the weighted drill rod body and fixedly connected to a connecting seat, one end of the connecting seat is rotatably connected to a connecting rod, one end of the connecting rod is rotatably connected to a movable block, the interior of the movable block is slidably connected to a fixed rod, the surface of the fixed rod is sleeved with a connecting spring, and one end of the fixed rod is fixedly connected to a fixing plate.

[0009] Preferably, the fixing component includes a mounting base, an external thread, an internal thread, a threaded seat, a connecting block, a fixing block, a guide rod, and a fixing spring. The bottom end of the heavy drill pipe body is movably connected to the mounting base. One side of the mounting base is fixedly connected to the external thread. The inner side of the mounting base is fixedly connected to the internal thread. The surface of the internal thread is threadedly connected to the threaded seat. The top end of the threaded seat is fixedly connected to the connecting block. One side of the connecting block is fixedly connected to the fixing block. The inside of the fixing block is slidably connected to the guide rod. The surface of the guide rod is sleeved with the fixing spring.

[0010] Preferably, the wear-resistant band is made of a surfacing electrode material of graphite type, and a sulfur-proof layer is provided on the surface of the wear-resistant band.

[0011] Preferably, the number of the abutting blocks is four groups. The positions of the abutting blocks are coaxial at the same center of a circle, and the abutting blocks are equally angularly distributed inside the heavy drill pipe body.

[0012] Preferably, the positions of the movable block, the fixed rod, and the connecting spring are coaxial on the same vertical line. The diameter of the movable block is larger than the diameter of the connecting spring. The diameter of the connecting spring is larger than the diameter of the fixed rod.

[0013] Preferably, a connecting groove adapted to the size of the fixing block is formed inside the heavy drill pipe body, and the connecting block slides inside the heavy drill pipe body through the fixing block.

[0014] Preferably, the number of the guide rods is four groups. The positions of the guide rods are coaxial at the same center of a circle, and the guide rods are equally angularly distributed inside the heavy drill pipe body.

[0015] Compared with the prior art, the present utility model provides a wear-resistant heavy drill pipe for black and white grinding drills, having the following beneficial effects:

[0016] 1. For the wear-resistant heavy drill pipe for black and white grinding drills, when the wear-resistant band contacts the inner wall of the drill hole, the vibration received by the wear-resistant band can push the abutting block to slide inside the heavy drill pipe body. Then, the sliding of the abutting block drives the connecting seat to press the connecting rod. The connecting rod rotates at one end of the connecting seat under the pressure to push the movable block to slide on the surface of the fixed rod. At the same time, the sliding of the movable block compresses the connecting spring, and the connecting spring rebounds after compression, thereby achieving the buffering effect on the vibration energy on the surface of the wear-resistant band and ensuring the service life of the wear-resistant band.

[0017] 2. The wear-resistant weighted drill pipe black and white grinding drill installs a rotating mounting seat at the bottom end of the weighted drill pipe body. The mounting seat is threadedly connected to the connecting thread inside the weighted drill pipe body through an external thread for the first layer of connection. At the same time, the internal thread of the mounting seat is threadedly connected to the surface of the threaded seat. The threaded seat is connected to the inside of the mounting seat along the position of the guide rod through the internal thread for the secondary connection. Then, the fixing block presses the fixing spring, and the rebound of the fixing spring can apply pressure to the connection between the internal thread and the threaded seat, increasing the frictional force of the threaded connection and ensuring the stability of the device for the installation operation of the black and white grinding drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of the weighted drill pipe body and the mounting seat of the present invention;

[0020] Figure 3 is a schematic diagram of the structure of the connecting thread and the threaded seat of the present invention;

[0021] Figure 4 is a schematic diagram of the structure of the threaded seat and the connecting block of the present invention;

[0022] Figure 5 is a schematic diagram of the structure of the connecting seat and the connecting rod of the present invention.

[0023] In the figure: 1. Weighted drill pipe body; 11. Connecting thread; 2. Wear-resistant component; 21. Wear-resistant belt; 22. Abutting block; 23. Connecting seat; 24. Connecting rod; 25. Movable block; 26. Fixed rod; 27. Fixed plate; 28. Connecting spring; 3. Fixing component; 31. Mounting seat; 32. External thread; 33. Internal thread; 34. Threaded seat; 35. Connecting block; 36. Fixing block; 37. Guide rod; 38. Fixing spring; 4. Black and white grinding drill bit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5, in this implementation: A black and white abrasive drill rod for wear-resistant heavy drill pipes includes a heavy drill pipe body 1. Inside the heavy drill pipe body 1, a connecting thread 11 is fixedly connected. On the surface of the heavy drill pipe body 1, a wear-resistant component 2 is installed and connected. At the bottom end of the heavy drill pipe body 1, a fixing component 3 is movably connected. At the bottom end of the fixing component 3, a black and white abrasive drill bit 4 is fixedly connected. On the surface of the heavy drill pipe body 1, a wear-resistant belt 21 is installed and connected. In contact with the surface of the wear-resistant belt 21 is an abutting block 22. One end of the abutting block 22 is fixedly connected to a connecting seat 23 inside the heavy drill pipe body 1. One end of the connecting seat 23 is rotatably connected to a connecting rod 24. One end of the connecting rod 24 is rotatably connected to a movable block 25. Inside the movable block 25, a fixing rod 26 is slidably connected. On the surface of the fixing rod 26, a connecting spring 28 is sleeved. One end of the fixing rod 26 is fixedly connected to a fixing plate 27. By setting the wear-resistant component 2, it is ensured that the device can effectively relieve the vibration energy generated by the impact of the wear-resistant belt 21 on the inner wall of the drill hole, ensuring the practicality of the device.

[0026] In this embodiment, the fixing component 3 includes a mounting seat 31, an external thread 32, an internal thread 33, a threaded seat 34, a connecting block 35, a fixing block 36, a guide rod 37, and a fixing spring 38. At the bottom end of the heavy drill pipe body 1, a mounting seat 31 is movably connected. On one side of the mounting seat 31, an external thread 32 is fixedly connected. Inside the mounting seat 31, an internal thread 33 is fixedly connected. On the surface of the internal thread 33, a threaded seat 34 is threadedly connected. At the top end of the threaded seat 34, a connecting block 35 is fixedly connected. On one side of the connecting block 35, a fixing block 36 is fixedly connected. Inside the fixing block 36, a guide rod 37 is slidably connected. On the surface of the guide rod 37, a fixing spring 38 is sleeved. By setting the fixing component 3, it is ensured that the fixing method of the black and white abrasive drill bit 4 and the heavy drill pipe body 1 of the device is double-layer thread fixing, ensuring that the black and white abrasive drill bit 4 can also operate stably during high-intensity operations, ensuring the practicality of the device.

[0027] The wear-resistant belt 21 is made of a surfacing electrode material of graphite type. On the surface of the wear-resistant belt 21, a sulfur-proof layer is provided, ensuring that the wear-resistant belt 21 has good wear resistance, toughness, and crack resistance, and at the same time ensuring that the surface of the wear-resistant belt 21 is not easily eroded, ensuring the practicality of the device.

[0028] The number of the abutting blocks 22 is four groups. The positions of the abutting blocks 22 are co-centered. The abutting blocks 22 are evenly distributed at equal angles inside the heavy drill pipe body 1, ensuring that the abutting blocks 22 can absorb the vibration energy on the surface of the wear-resistant belt 21 from multiple angles, ensuring the service life of the wear-resistant belt 21.

[0029] The positions of the movable block 25, the fixed rod 26, and the connecting spring 28 are on the same vertical line. The diameter of the movable block 25 is greater than that of the connecting spring 28, and the diameter of the connecting spring 28 is greater than that of the fixed rod 26, ensuring that the abutting block 22 absorbs vibration energy and drives the connecting rod 24 to rotate to push the movable block 25. The movable block 25 slides on the surface of the fixed rod 26 to compress the connecting spring 28. After the connecting spring 28 is compressed, it rebounds to offset the vibration energy absorbed by the abutting block 22, ensuring the buffering effect of the device on the vibration energy of the wear-resistant belt 21.

[0030] A connecting groove adapted to the size of the fixed block 36 is provided inside the heavy drill pipe body 1. The connecting block 35 slides inside the heavy drill pipe body 1 through the fixed block 36. When the mounting seat 31 connects the threaded seat 34 to the inside of the mounting seat 31 through the internal thread 33, the fixed block 36 presses the fixed spring 38. The resilience of the fixed spring 38 can increase the friction force at the threaded connection, ensuring the stability of the black and white grinding bit 4 after installation.

[0031] The number of guide rods 37 is four groups. The positions of the guide rods 37 are on the same center of the circle. The guide rods 37 are evenly distributed inside the heavy drill pipe body 1, ensuring that the movement trajectory of the connecting block 35 is consistent with the connection length of the guide rods 37.

[0032] The working principle and usage process of the present utility model: The present utility model is a wear-resistant heavy drill pipe black and white grinding drill. When it is necessary to protect the wear-resistant belt 21 during use, the wear-resistant belt 21 contacts the inner wall of the drilling well. The wear-resistant belt 21 is subjected to vibration energy and pushes the abutting block 22 to slide inside the heavy drill pipe body 1. Then, the abutting block 22 slides to drive the connecting seat 23 to press the connecting rod 24. The connecting rod 24 rotates at one end of the connecting seat 23 under pressure to push the movable block 25 to slide on the surface of the fixed rod 26. At the same time, the movable block 25 slides to compress the connecting spring 28. After the connecting spring 28 is compressed, it rebounds to achieve the buffering effect on the vibration energy on the surface of the wear-resistant belt 21, ensuring the service life of the wear-resistant belt 21. At the same time, when it is necessary to install the black and white grinding bit 4, the mounting seat 31 is rotated at the bottom end of the heavy drill pipe body 1. The mounting seat 31 is threadedly connected to the connecting thread 11 inside the heavy drill pipe body 1 through the external thread 32 for the first layer of connection. At the same time, the internal thread 33 of the mounting seat 31 is threadedly connected to the surface of the threaded seat 34. The threaded seat 34 is connected to the inside of the mounting seat 31 along the position of the guide rod 37 through the internal thread for the secondary connection. Then, the fixed block 36 presses the fixed spring 38, and the resilience of the fixed spring 38 can apply pressure to the connection between the internal thread and the threaded seat 34, increasing the friction force of the threaded connection and ensuring the stability of the device during the installation operation of the black and white grinding bit 4.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A black and white grinding drill for wear-resistant heavy drill pipes, comprising a heavy drill pipe body (1), a connecting thread (11) is fixedly connected inside the heavy drill pipe body (1), a wear-resistant component (2) is installed and connected to the surface of the heavy drill pipe body (1), a fixing component (3) is movably connected to the bottom end of the heavy drill pipe body (1), and a black and white grinding drill bit (4) is fixedly connected to the bottom end of the fixing component (3), characterized in that: A wear-resistant band (21) is mounted and connected to the surface of the heavy drill pipe body (1). A contact block (22) is in contact connection with the surface of the wear-resistant band (21). One end of the contact block (22) is fixedly connected to a connection seat (23) inside the heavy drill pipe body (1). One end of the connection seat (23) is rotatably connected to a connecting rod (24). One end of the connecting rod (24) is rotatably connected to a movable block (25). A fixed rod (26) is slidably connected inside the movable block (25). A connection spring (28) is sleeved on the surface of the fixed rod (26). One end of the fixed rod (26) is fixedly connected to a fixing plate (27).

2. The wear-resistant weighted drill pipe black and white grinding drill according to claim 1, characterized in that: The fixing assembly (3) includes a mounting seat (31), an external thread (32), an internal thread (33), a threaded seat (34), a connection block (35), a fixing block (36), a guide rod (37), and a fixing spring (38). The bottom end of the heavy drill pipe body (1) is movably connected to the mounting seat (31). An external thread (32) is fixedly connected to one side of the mounting seat (31). An internal thread (33) is fixedly connected to the inner side of the mounting seat (31). A threaded seat (34) is threadedly connected to the surface of the internal thread (33). A connection block (35) is fixedly connected to the top end of the threaded seat (34). A fixing block (36) is fixedly connected to one side of the connection block (35). A guide rod (37) is slidably connected inside the fixing block (36). A fixing spring (38) is sleeved on the surface of the guide rod (37).

3. A wear-resistant weighted drill pipe for black and white grinding drills according to claim 1, characterized in that: The wear-resistant band (21) is made of a surfacing electrode material of graphite type, and a sulfur-proof layer is provided on the surface of the wear-resistant band (21).

4. A wear-resistant heavy drill pipe black and white grinding drill according to claim 1, characterized in that: The number of the contact blocks (22) is four groups. The positions of the contact blocks (22) are co-centered. The contact blocks (22) are equally angularly distributed inside the heavy drill pipe body (1).

5. A wear-resistant weighted drill pipe for black and white grinding drills according to claim 1, characterized in that: The positions of the movable block (25), the fixed rod (26), and the connection spring (28) are on the same vertical line. The diameter of the movable block (25) is larger than the diameter of the connection spring (28). The diameter of the connection spring (28) is larger than the diameter of the fixed rod (26).

6. A wear-resistant heavy drill pipe black and white grinding drill according to claim 2, characterized in that: A connection groove adapted to the size of the fixing block (36) is formed inside the heavy drill pipe body (1). The connection block (35) slides inside the heavy drill pipe body (1) through the fixing block (36).

7. A wear-resistant heavy drill pipe for black and white grinding drills according to claim 2, characterized in that: The number of the guide rods (37) is four groups. The positions of the guide rods (37) are co-centered. The guide rods (37) are equally angularly distributed inside the heavy drill pipe body (1).

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