A mud pulse drilling measurement drill pipe

Abstract

The utility model relates to the technical field of while drilling measurement drill rod design discloses a mud pulse while drilling measurement drill rod, including the drill rod, the outer wall of drill rod is provided with the drill thread, the top side of drill rod is provided with the drill bit, the top side of drill bit is provided with the abutment subassembly, the inside of drill bit is provided with the through slot, the inside of drill rod is provided with the through cavity, the middle end fixedly connected with a plurality of connecting blocks of through cavity inner wall, a plurality of the similar side fixedly connected with the machine case of connecting block, the inside installation of machine case has electric push rod, the drive end of electric push rod is provided with detection assembly. In the utility model, through the compression spring in the screw ring and screw groove screwing process, the continuous axial pre-tightening force is formed, makes the screw pair closer. The design enhances the anti-vibration performance of drill bit connection, avoids the loosening or falling off caused by vibration in the drilling process, supports the quick disassembly and replacement of drill bit simultaneously, and improves the operation efficiency under the complex working condition.

Description

Technical Field

[0001] This utility model relates to the field of drilling measurement-while-drilling drill pipe design technology, and in particular to a mud pulse drilling measurement-while-drilling drill pipe. Background Technology

[0002] In the fields of oil and gas drilling and geological exploration, measurement while drilling (MWD) technology is a core means of acquiring underground data in real time and ensuring drilling accuracy. Mud pulses, as a commonly used signal transmission medium, directly affect borehole trajectory adjustment and formation analysis due to the accuracy of their parameter monitoring. Traditional MWD drill pipes mostly adopt a fixed connection to the drill bit and a passive pressure detection mode. Under complex geological conditions, the drill bit is prone to loosening due to vibration, and they cannot dynamically capture mud pulse signals. Therefore, there is an urgent need to improve the reliability of drill pipes and the timeliness of data acquisition during high-load operations through innovation in mechanical structure and detection mechanisms.

[0003] Existing mud pulse measurement-while-drilling (MWD) drill pipes suffer from significant technical bottlenecks: First, the drill bit connection structure lacks vibration resistance. Traditional threaded connections rely solely on mechanical meshing, and high-frequency vibrations during drilling can easily lead to thread wear and loosening, even causing drill bit detachment accidents, requiring frequent shutdowns for maintenance and impacting operational efficiency. Second, mud pulse detection is lagging and inaccurate. Passive detection methods rely on pressure fluctuations generated by the natural flow of mud, failing to actively interrupt the flow path for transient signal capture. Severe background noise interference results in large data errors. Third, drill bit adaptability is limited. Fixed-specification drill bits cannot meet the drilling needs of different lithological formations, requiring complete disassembly of the drill pipe for replacement, which is cumbersome and time-consuming. Furthermore, the non-integrated detection module increases equipment maintenance difficulty and fails to meet the real-time and accuracy requirements of modern intelligent drilling. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mud pulse measurement while drilling drill pipe, which aims to solve the problems of easy loosening of drill bits, delayed pulse detection, and limited adaptability of existing measurement while drilling drill pipes.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A mud pulse measurement while drilling drill pipe includes a drill pipe with drill grooves on its outer wall, a drill bit on its top side, an abutment component on its top side, a through groove inside the drill bit, a through cavity inside the drill pipe, a plurality of connecting blocks fixedly connected to the middle end of the inner wall of the through cavity, a housing fixedly connected to adjacent sides of the plurality of connecting blocks, an electric push rod installed inside the housing, and a detection component provided at the drive end of the electric push rod.

[0007] Furthermore, the abutment assembly includes an abutment ring, and a plurality of springs are provided on the top side of the drill bit. One end of each spring is connected to the bottom side of the abutment ring, and the other end is connected to the top side of the drill bit.

[0008] Furthermore, a sealing ring is fixedly connected to the bottom end of the outer wall of the drill rod, and a threaded groove is opened on the bottom side of the drill rod, with the sealing ring abutting against the top side of the abutment ring.

[0009] Furthermore, a threaded groove is provided on the bottom side of the drill rod, and a threaded ring is fixedly connected to the top side of the drill bit, with the threaded ring being threadedly connected to the threaded groove.

[0010] Furthermore, a protective ring is fixedly connected to the top of the outer wall of the drill bit, and multiple drill teeth are fixedly connected to the bottom side of the drill bit.

[0011] Furthermore, the detection component includes a sealing block, the top side of which is fixedly connected to the drive end of the electric push rod, and the bottom side of the sealing block is provided with a mounting groove, the inside of which a pressure detector is installed.

[0012] Furthermore, a through ring is fixedly connected to the bottom end of the inner wall of the cavity, and a through hole is opened inside the through ring, the size of which corresponds to that of the sealing block.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, a continuous axial preload is generated by compressing the spring during the engagement of the threaded ring and the threaded groove, resulting in a tighter fit between the threaded parts. This design enhances the vibration resistance of the drill bit connection, preventing loosening or detachment due to vibration during drilling. It also supports quick disassembly and replacement of the drill bit, improving work efficiency under complex working conditions.

[0015] 2. In this invention, the sealing block can be precisely sealed by activating the electric push rod, cutting off the mud flow and concentrating the pressure on the detector. This structure, through the linkage design of the mechanical seal and pressure sensor, achieves real-time capture of mud pulse signals, effectively filters background noise interference, ensures the accuracy of drilling-while-drilling measurement data, and is suitable for dynamic monitoring of mud parameters in deep drilling. Attached Figure Description

[0016] Figure 1 A three-dimensional view of a drill pipe for mud pulse measurement while drilling proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the spring structure of a drill pipe for mud pulse measurement while drilling proposed in this utility model;

[0018] Figure 3This is a schematic diagram of the internal structure of a drill pipe for mud pulse measurement while drilling proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the electric pusher structure of a drill pipe for mud pulse measurement while drilling proposed in this utility model.

[0020] Legend:

[0021] 1. Drill rod; 2. Sealing ring; 3. Protective ring; 4. Drill bit; 5. Drill tooth; 6. Threaded ring; 7. Abutment ring; 8. Spring; 9. Threaded groove; 10. Through ring; 11. Sealing block; 12. Housing; 13. Connecting block; 14. Electric push rod; 15. Pressure detector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a mud pulse measurement while drilling drill pipe, comprising a drill pipe 1, the outer wall of which is provided with drill grooves, a drill bit 4 provided on the top side of the drill pipe 1, an abutment component provided on the top side of the drill bit 4, a through groove opened inside the drill bit 4, a through cavity provided inside the drill pipe 1, a plurality of connecting blocks 13 fixedly connected to the middle end of the inner wall of the through cavity, a housing 12 fixedly connected to the adjacent side of the plurality of connecting blocks 13, an electric push rod 14 installed inside the housing 12, and a detection group provided at the drive end of the electric push rod 14. The drill bit 4 has multiple springs 8 on its top side. One end of each spring 8 is connected to the bottom side of the abutment ring 7, and the other end is connected to the top side of the drill bit 4. A sealing ring 2 is fixedly connected to the bottom end of the outer wall of the drill rod 1. A threaded groove 9 is provided on the bottom side of the drill rod 1. The sealing ring 2 abuts against the top side of the abutment ring 7. A threaded groove 9 is provided on the bottom side of the drill rod 1. A threaded ring 6 is fixedly connected to the top side of the drill bit 4. The threaded ring 6 is threadedly connected to the threaded groove 9. A protective ring 3 is fixedly connected to the top end of the outer wall of the drill bit 4. Multiple drill teeth 5 are fixedly connected to the bottom side of the drill bit 4.

[0024] Specifically, when using this mud pulse measurement-while-drilling (MWD) system on drill pipe, the operation process revolves around drill bit replacement and pulse detection. First, select the appropriate drill bit 4 according to the drilling requirements, and screw its threaded ring 6 into the threaded groove 9 at the end of the drill pipe 1. During tightening, the sealing ring 2 moves down with the threaded ring and compresses the spring 8 through the abutment ring 7. After installation, the spring 8 remains compressed, continuously applying axial force to the sealing ring 2 and the drill pipe 1, making the threaded pair fit more tightly and ensuring a stable connection of the drill bit 5. When it is necessary to replace the drill bit 5, simply rotate in the opposite direction to quickly disassemble and replace it with a drill bit of a different specification, improving the adaptability of the drill pipe 1 to different working conditions.

[0025] Reference Figure 1 , Figure 3 and Figure 4 The top side of the sealing block 11 is fixedly connected to the drive end of the electric push rod 14. The bottom side of the sealing block 11 is provided with an installation groove. A pressure detector 15 is installed inside the installation groove. A through ring 10 is fixedly connected to the bottom end of the inner wall of the cavity. A through hole is provided inside the through ring 10. The size of the through hole corresponds to that of the sealing block 11.

[0026] Specifically, during drilling, the drilling mud enters the internal cavity of the drill pipe through the through-slot of the drill bit 4 and the through-hole of the through-ring 10. When it is necessary to measure the mud pulse, the electric push rod 14 is activated to drive the sealing block 11 downward, causing it to embed into the through-hole to form a seal. At this time, the mud flow is cut off, and the pressure is concentrated on the pressure detector 15 inside the sealing block 11, realizing real-time detection of the mud pulse signal. This design, through the spring-preloaded mechanical seal structure and the electrically controlled pulse detection mechanism, ensures the reliability of the drill bit 4 connection and realizes the dynamic monitoring of mud parameters, meeting the engineering requirements of drilling-while-measuring under complex geological conditions.

[0027] Working principle: In use, first select the drill bit 4 with the required drill teeth 5 and appropriate size. Then, install the threaded ring 6 into the threaded groove 9. During installation, the sealing ring 2 continuously moves downwards, thereby continuously compressing the spring 8 through the abutment ring 7. After installation, the spring 8 is in a compressed state and continuously exerts force on the sealing ring 2 and drill rod 1 through the abutment ring 7. This allows for a tighter thread fit between the threaded groove 9 and the threaded ring 6, making the drill bit 4 more securely installed. Simultaneously, it also allows for the... The drill bit 4 can be disassembled and installed in different ways, thereby improving the flexibility and adaptability of the drill pipe. At the same time, during the operation of the drill pipe, the mud will enter the cavity through the through groove opened by the drill bit 4 and the through hole opened by the through ring 10. When it is necessary to measure the mud pulse, the sealing block 11 can be driven to move downward by activating the electric push rod 14, so that the sealing block 11 enters the cavity and seals it, preventing the mud from entering the cavity through the through groove. Therefore, the mud will generate pressure on the pressure detector 15 inside the sealing block 11, thereby detecting the mud pulse.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drilling pipe for mud pulse measurement while drilling, characterized in that, The device includes a drill rod (1), the outer wall of which is provided with drill grooves, a drill bit (4) is provided on the top side of the drill rod (1), an abutment component is provided on the top side of the drill bit (4), a through groove is provided inside the drill bit (4), a through cavity is provided inside the drill rod (1), a plurality of connecting blocks (13) are fixedly connected to the middle end of the inner wall of the through cavity, a housing (12) is fixedly connected to the adjacent side of the plurality of connecting blocks (13), an electric push rod (14) is installed inside the housing (12), and a detection component is provided at the drive end of the electric push rod (14).

2. The drilling pipe for mud pulse measurement while drilling according to claim 1, characterized in that, The abutment assembly includes an abutment ring (7), and a plurality of springs (8) are provided on the top side of the drill bit (4). One end of the spring (8) is connected to the bottom side of the abutment ring (7), and the other end is connected to the top side of the drill bit (4).

3. The drilling pipe for mud pulse measurement while drilling according to claim 2, characterized in that: A sealing ring (2) is fixedly connected to the bottom end of the outer wall of the drill rod (1). A threaded groove (9) is opened on the bottom side of the drill rod (1). The sealing ring (2) abuts against the top side of the abutment ring (7).

4. The drilling pipe for mud pulse measurement while drilling according to claim 3, characterized in that: The bottom side of the drill rod (1) is provided with a threaded groove (9), and the top side of the drill bit (4) is fixedly connected with a threaded ring (6), which is threadedly connected to the threaded groove (9).

5. The drilling pipe for mud pulse measurement while drilling according to claim 1, characterized in that: A protective ring (3) is fixedly connected to the top of the outer wall of the drill bit (4), and multiple drill teeth (5) are fixedly connected to the bottom side of the drill bit (4).

6. The drilling pipe for mud pulse measurement while drilling according to claim 1, characterized in that, The detection component includes a sealing block (11), the top side of which is fixedly connected to the drive end of the electric push rod (14), and the bottom side of the sealing block (11) is provided with an installation groove, and a pressure detector (15) is installed inside the installation groove.

7. The drilling pipe for mud pulse measurement while drilling according to claim 6, characterized in that: A through ring (10) is fixedly connected to the bottom end of the inner wall of the cavity. The through ring (10) has a through hole inside, and the through hole corresponds to the size of the sealing block (11).

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