Device and method for full-size intelligent measurement of drill rod

Abstract

The invention relates to a petroleum drill rod size measuring device and method, and discloses a drill rod full-size intelligent measuring device which comprises a measuring frame, an end distance measuring sensor, an end reflector, a thread distance measuring sensor, an outer diameter caliper, a full-length distance measuring sensor, a full-length reflector and an industrial personal computer. The invention further discloses a method for full-size intelligent measurement of the drill rod. The method comprises the steps of mounting the measuring frame, measuring the effective length of the drill rod, measuring the outer diameter of the female end connector, measuring the outer diameter of the male end connector, measuring the length of the female end connector, measuring the length of the male end connector, measuring the length of female end connector internal threads and measuring the length of male end connector internal threads. According to the invention, the measurement precision, the measurement accuracy and the measurement efficiency are improved, the adaptability is high, data transmission can be realized, and the method is suitable for the full-size measurement of the drill rod.

Description

Technical Field

[0001] This invention relates to an oil drill pipe dimension measuring device and method, specifically an intelligent device and method for full-size measurement of drill pipe. Background Technology

[0002] Drill pipe is used to transmit torque, transport drilling fluid, and support the drill string in oil drilling, and is an essential tool in oil drilling. As oil and gas exploration and development targets extend to "deep, low-temperature, non-conventional, and offshore" areas, the workload of deep, high-temperature, low-temperature, and low-conventional oil and gas reservoirs, as well as unconventional oil and gas exploration and development, has increased significantly, and the difficulty has become increasingly greater, placing more stringent requirements on the quality and technical support of drilling tools.

[0003] To ensure the quality of drill string maintenance and accurately assess the technical condition of each drill string, a full-dimensional measurement of each drill pipe must be performed after cleaning. Full-dimensional measurement of drill strings is a necessary measure for monitoring maintenance quality and accurately determining their technical condition. For example... Figure 1 As shown, the drill pipe has a female end connector with internal threads and a male end connector with external threads at both ends. Full-size measurement refers to measuring a total of seven data points, including the effective length of the drill pipe, the outer diameter of the female end connector, the outer diameter of the male end connector, the length of the female end connector, the length of the male end connector, the length of the internal thread of the female end connector, and the length of the external thread of the male end connector. This measurement process is labor-intensive, requires high precision, and demands accurate recording. Currently, this work is performed manually using vernier calipers, steel rulers, and tape measures, and requires at least three people to complete. The traditional manual measurement, reporting, recording, and data entry process suffers from low measurement accuracy, a high probability of human error, a large workload, and low efficiency, seriously affecting the quality and efficiency of drill pipe maintenance. Summary of the Invention

[0004] To address the aforementioned shortcomings in the existing technology, this invention aims to provide a device and method for intelligent full-size measurement of drill pipes, thereby achieving intelligent full-size measurement of drill pipes, improving measurement accuracy, measurement efficiency, and reducing measurement errors.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a device for intelligent measurement of the full dimensions of drill pipe, comprising... Measuring frame: There are two measuring frames that are independent of each other and opposite to each other. The measuring frame has a space for the drill pipe joint to extend into in the length direction, and a positioning surface is formed inside the measuring frame for abutting against the end face of the drill pipe joint. End-mounted distance sensor: fixed on the measuring frame and located in the same vertical plane as the positioning surface; End reflector: It is slidably mounted on the measuring frame along the length of the measuring frame and is positioned opposite to the end distance sensor, so that the distance between the measuring positioning surface of the end distance sensor and the end reflector is equal. Threaded distance sensor: Slidably mounted on the positioning surface along the width direction of the measuring frame; Outside diameter calipers: installed inside the measuring frame along the width direction, at one end close to the positioning surface; Full-length ranging sensor: fixed to one of the two measuring frames, and located in the same vertical plane as the positioning surface of the measuring frame; Full-length reflector: It is slidably set in the other of the two measuring frames along the length of the measuring frame and is set opposite to the full-length distance measuring sensor, so that the full-length distance measuring sensor measures the distance between the corresponding positioning surface and the full-length reflector; Industrial control computer: Connects to the end range sensor, thread range sensor, outside diameter caliper and full length range sensor.

[0006] As a limitation of the present invention: the positioning surface is made of magnetic material.

[0007] As a limitation of the invention, it also includes a drill rod bracket for supporting the drill rod, the height of which is adapted to the height of the measuring frame.

[0008] As a limitation of the present invention: the drill rod bracket includes a pair of support columns extending along the width direction of the measuring frame, the support columns having grooves for placing drill rods, and the measuring frame having casters on the side facing the ground.

[0009] As a limitation of the present invention: a height adjustment device is fixed between the measuring frame and the moving wheels.

[0010] As a limitation of the present invention: the outer diameter caliper includes two movable scales arranged along the height direction, the measuring frame is provided with a track along the width direction of the measuring frame, the movable scales are slidably arranged in the track, and the two movable scales are located in the same plane, and an electronic measuring mechanism for measuring the distance between the movable scales and the corresponding outer edge of the measuring frame is provided between the movable scales and the track, and the electronic measuring mechanism is connected to the industrial control computer.

[0011] As a limitation of the present invention: the movable ruler is fixedly provided with a handle to facilitate the sliding of the movable ruler.

[0012] This invention also discloses a method for intelligent full-size measurement of drill pipes, implemented using the aforementioned device for intelligent full-size measurement of drill pipes, comprising the following steps: Measurement frame installation: Place the two measurement frames onto the male and female connectors of the drill pipe respectively, and make the ends of the male and female connectors abut against the positioning surfaces of the corresponding measurement frames. At the same time, align the full-length reflector with the full-length distance sensor to complete the installation of the measurement frames. Effective length measurement of drill pipe: Slide the full-length reflector until it is flush with the end of the corresponding joint. The value measured by the full-length distance sensor is the effective length of the drill pipe. Female connector outer diameter measurement: Slide the outer diameter caliper of the female connector measuring frame, so that the outer diameter caliper is against the outer surface of the female connector, and the outer diameter of the female connector is obtained by calculation. Male connector outer diameter measurement: Slide the outer diameter caliper of the male connector measuring frame until the caliper touches the outer surface of the male connector, and calculate the outer diameter of the male connector. Female connector length measurement: Slide the end reflector of the female connector measuring frame until the end reflector is flush with the bottom of the female connector. The length of the female connector is measured by the threaded distance sensor at the end of the measuring frame. Male connector length measurement: Slide the end reflector of the male connector measuring frame until it is flush with the bottom of the male connector. The value measured by the distance sensor at the upper end of the measuring frame is the length of the male connector. Measurement of the internal thread length of the female end connector: The thread distance sensor of the sliding female end connector measuring frame is used to illuminate the inner end of the internal thread of the female end connector with light from the thread distance sensor. The value measured by the thread distance sensor is the internal thread length of the female end connector. Measurement of the internal thread length of the male connector: The thread distance sensor of the sliding male connector measuring frame is used to illuminate the end of the external thread of the male connector. The value measured by the thread distance sensor is the internal thread length of the male connector. All measured values ​​were transmitted to the industrial control computer via signal transmission.

[0013] As a limitation of the present invention: the outer diameter of the female end connector R1 = L - L1 - L2; Where L is the length of the track where the moving scale is located, L1 is the distance between one of the moving scales and the outer edge of the corresponding measuring frame, and L2 is the distance between the other moving scale and the outer edge of the corresponding measuring frame; Male connector outer diameter R2 = L - L3 - L4; Where L is the length of the track where the moving ruler is located, L3 is the distance between one of the moving rulers and the outer edge of the corresponding measuring frame, and L4 is the distance between the other moving ruler and the outer edge of the corresponding measuring frame.

[0014] By adopting the above technical solution, the beneficial effects achieved by the present invention compared with the prior art are as follows: This invention transforms manual measurement into digital intelligent measurement. Since there is no need for reporting, recording, or inputting data, it avoids human error in the above processes, improving measurement accuracy and precision. Using this invention, full-size measurement of drill pipes can be completed by only one person. Moreover, the measuring frame itself is a measuring fixture, which improves measurement efficiency. It is unaffected by the external environment, has strong adaptability, and all measured data is transmitted to the industrial control computer. It can not only measure and display data, but also realize data transmission.

[0015] In summary, this invention improves measurement accuracy, measurement efficiency, and measurement effectiveness; it is highly adaptable and enables data transmission, making it suitable for measuring the full dimensions of drill pipes. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the drill pipe structure; Figure 2 This is a schematic diagram of the structure of one of the measuring frames in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of another measuring frame in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram illustrating the use of Embodiment 1 of the present invention.

[0018] In the diagram: 1-Drill pipe, 2-Male connector, 3-Female connector, 4-Measuring frame, 5-Adjusting rod, 6-Display screen, 7-Positioning surface, 8-End distance sensor, 9-End reflector, 10-End track, 11-Full-length distance sensor, 12-Full-length reflector, 13-Full-length track, 14-Outer diameter track, 15-Moving ruler, 16-Threaded distance sensor, 17-Drill pipe bracket, 171-Support column, 172-Column, 173-Groove. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the apparatus and method for intelligent measurement of the full dimensions of drill pipe described herein are preferred embodiments and are only used for illustration and explanation of the present invention, and do not constitute a limitation thereof.

[0020] The directional terms or positional relationships used in this invention, such as "up," "down," "left," and "right," are based on the positional relationships in the accompanying drawings of this invention. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this invention.

[0021] Example 1 This embodiment describes a device for intelligent measurement of the full dimensions of drill pipes, such as... Figure 1 As shown, the full-size intelligent measurement includes the measurement of the effective length of drill pipe 1, the outer diameter of female connector 3, the outer diameter of male connector 2, the length of female connector 3, the length of male connector 2, the internal thread length of female connector 3, and the external thread length of male connector 2.

[0022] like Figures 2-4 As shown, the device for intelligent measurement of the full size of the drill pipe includes a measuring frame 4, an end distance sensor 8, an end reflector 9, a thread distance sensor 16, an outer diameter caliper, a full length distance sensor 11, a full length reflector 12, an industrial control computer, and a drill pipe bracket 17.

[0023] Two measuring frames 4 are independently and oppositely arranged. Each measuring frame 4 is a cubic frame structure with an opening on one side, forming a space along its length for the drill pipe connector to extend into. In use, the openings face each other, and the two measuring frames 4 are respectively fitted onto the male end connector 2 and the female end connector 3 of the drill pipe 1 through the openings. A height adjustment device is fixed below the measuring frame 4, comprising two angled adjusting rods 5. The height of the measuring frame 4 is adjusted by adjusting the included angle of the adjusting rods 5. The structure of the adjusting rods 5 is existing technology and will not be described in detail here. A display screen 6 is fixed on the adjusting rods 5, and the display screen 6 is connected to an industrial control computer to display information such as the drill pipe measurement data. A flat base is fixed below the adjusting rods 5, and four casters are fixed below the base to facilitate the movement of the measuring frame 4.

[0024] Specifically, the opening side of the measuring frame 4 is a square frame structure. The inner end face of the measuring frame 4, which is opposite to the opening side in the length direction, is a positioning surface 7 for abutting against the end face of the drill rod joint. In this embodiment, the positioning surface 7 is a cross-shaped plate structure, which is transparent while abutting against the end face of the drill rod joint, making it easy to observe the state of the drill rod joint inside the measuring frame 4. Furthermore, the positioning surface 7 is made of magnetic material. When the end face of the metal drill rod 1 abuts against the positioning surface 7, the two can be attracted by magnetism, avoiding positional displacement between the measuring frame 4 and the drill rod 1 during the measurement process, and further ensuring the accuracy of the measurement results.

[0025] To measure the lengths of the male connector 2 and the female connector 3, an end distance sensor 8 is installed on the measuring frame 4. The end distance sensor 8 is fixed on the measuring frame 4 at the top of the positioning surface 7 and is located in the same vertical plane as the positioning surface 7. An end reflector 9 is also installed on the measuring frame 4 to cooperate with the end distance sensor 8. Specifically, an end track 10 is set on the top surface of the measuring frame 4 along the length direction of the measuring frame 4. The end reflector 9 is slidably set in the end track 10. The end reflector 9 and the end distance sensor 8 are set opposite to each other. Here, "set opposite to each other" means that the end distance sensor 8 is located on the extension line of the end track 10. No matter how the end reflector 9 slides in the end track 10, the end distance sensor 8 can measure the distance between the positioning surface 7 and the end reflector 9. When the end reflector 9 is aligned with the corresponding connector of the drill rod 1, the measurement value of the end distance sensor 8 is the corresponding connector length. The end distance sensor 8 is connected to the industrial control computer to transmit the measurement result of the end distance sensor 8 to the industrial control computer. The end reflector 9 includes a pole slidably disposed in the end track 10, and a reflector fixed to the top of the pole. This arrangement can ensure that the measuring light of the end distance sensor 8 is irradiated on the end reflector 9 by increasing the reflector area, thereby ensuring the accuracy of the reading of the end distance sensor 8.

[0026] To measure the effective length of the drill pipe, a full-length distance sensor 11 is also installed on the measuring frame 4. The full-length distance sensor 11 is fixed to the top of one of the two measuring frames 4 and is located in the same vertical plane as the positioning surface 7 of that measuring frame 4. Correspondingly, a full-length reflector 12 is also installed on the other of the two measuring frames 4 to cooperate with the full-length distance sensor 11. Specifically, a full-length track 13 is provided on the top surface of the other measuring frame 4 along the length direction of the measuring frame 4, and the full-length reflector 12 is slidably installed in the full-length track 13. The full-length reflector 12 and the full-length distance sensor are... 11. Relative Setting: Here, "relative setting" means that when the two measuring frames 4 are installed at both ends of the drill rod 1, their positions should be adjusted so that the full-length distance sensor 11 is located on the extension line of the full-length track 13. Regardless of how the full-length reflector 12 slides in the full-length track 13, the full-length distance sensor 11 can measure the distance between the positioning surface 7 of one measuring frame 4 and the full-length reflector 12 on the other measuring frame 4. When the full-length reflector 12 is aligned with the end of the drill rod joint in one of the measuring frames 4, the measurement value of the full-length distance sensor 11 is the effective length of the drill rod. The full-length distance sensor 11 is connected to the industrial control computer, transmitting the measurement results to the industrial control computer. Similarly, the full-length reflector 12 also includes a pole and a reflector.

[0027] To measure the outer diameter of the two joints of the drill pipe, an outer diameter track 14 is provided inside the measuring frame 4 along the width direction of the measuring frame 4. In this embodiment, an outer diameter track 14 is provided on the top wall and the bottom wall of the measuring frame 4, and the two outer diameter tracks 14 are located in the same vertical plane. An outer diameter caliper is slidably installed in the outer diameter track 14. The outer diameter caliper in this embodiment includes two movable scales 15 slidably installed in the outer diameter track 14 along the height direction. A handle is fixed on the movable scale 15 to facilitate the sliding of the movable scale 15. An electronic measuring mechanism is provided between the two movable scales 15 and the outer diameter track 14 for measuring the distance between the movable scale 15 and the outer edge of the corresponding measuring frame 4 in the width direction. The electronic measuring mechanism adopts the measuring mechanism of the existing electronic vernier caliper. The electronic measuring mechanism is connected to the industrial control computer to transmit the measurement results of the electronic measuring mechanism to the industrial control computer.

[0028] To measure the length of the external thread of the male connector 2 and the internal thread of the female connector 3, a thread distance sensor 16 is installed on the measuring frame 4. Specifically, a threaded track (not shown in the figure) along the width direction of the measuring frame 4 is provided on the transverse plate of the cross structure of the positioning surface 7 of the measuring frame 4. The thread distance sensor 16 is slidably mounted in the threaded track. Since both the external thread of the male connector 2 and the internal thread of the female connector 3 have an inclination, the thread distance sensor 16 is slid to a suitable position so that the measuring light of the thread distance sensor 16 illuminates the end of the thread. At this time, the measurement value of the thread distance sensor 16 is the length of the external thread of the male connector 2 or the length of the internal thread of the female connector 3. The thread distance sensor 16 is connected to the industrial control computer for signal transmission, and the measurement result of the thread distance sensor 16 is transmitted to the industrial control computer.

[0029] like Figure 4 As shown, since the measuring frame 4 has a certain height, this embodiment also includes a drill rod bracket 17 for supporting the drill rod 1 in order to better adapt to the measuring frame 4. The height of the drill rod bracket 17 is adapted to the height of the measuring frame 4. The drill rod bracket 17 includes a pair of supporting columns 171 extending along the width direction of the measuring frame 4. A column 172 along the height direction is fixed below the supporting columns 171. The distance between the two supporting columns 171 is less than the length of the main body of the drill rod. A groove 173 for placing the drill rod is opened on one end of the supporting column 171. Multiple drill rods 1 to be measured are arranged along the length direction of the supporting column 171 at the end without the groove 173. The drill rod 1 near the groove 173 is rolled along the supporting column 171 into the groove 173. The measuring frame 4 is moved to fit the measuring frame 4 into the end of the drill rod located in the groove 173, and the measurement can begin. By setting the drill rod bracket 17, the full-size measurement of the drill rod 1 can be streamlined, further improving the measurement efficiency.

[0030] Example 2 This embodiment is a method for intelligent measurement of the full dimensions of drill pipes, implemented using the intelligent measurement device for the full dimensions of drill pipes described in Embodiment 1, and includes the following steps: Drill rod 1 positioning: Arrange several drill rods 1 to be measured along the length of the support column 171 on the drill rod bracket 17, and roll the drill rods near the groove 173 along the support column 171 into the groove 173 to complete the positioning of the drill rod 1.

[0031] Installation of measuring frame 4: Place the two measuring frames 4 on the male end connector 2 and female end connector 3 of the drill rod 1 respectively, and make the end of the male end connector 2 and the end of the female end connector 3 abut against the positioning surface 7 of the corresponding measuring frame 4 respectively. At the same time, make the full-length reflector 12 face the full-length distance sensor 11 to complete the installation of the measuring frame 4.

[0032] Effective length measurement of drill rod: Slide the full-length reflector 12 until it is flush with the end of the corresponding connector. The value measured by the full-length distance sensor 11 is the effective length of the drill rod 1.

[0033] Measurement of the outer diameter of the female end connector 3: The movable scale 15 of the outer diameter caliper of the sliding female end connector 3 measuring frame 4 (i.e., the measuring frame 4 sleeved on the female end connector 3, the same below) is used to make the two movable scales 15 abut against the outer surfaces on both sides of the female end connector 3 respectively. The outer diameter of the female end connector 3 is obtained by calculation. The outer diameter of the female end connector 3 R1 = L - L1 - L2; where L is the length of the track where the movable scale 15 is located, L1 is the distance in the width direction between one of the movable scales 15 and the outer edge of the corresponding measuring frame 4, and L2 is the distance in the width direction between the other movable scale 15 and the outer edge of the corresponding measuring frame 4.

[0034] Measurement of the outer diameter of male connector 2: Slide the movable scale 15 of the outer diameter caliper of the measuring frame 4 of male connector 2 (i.e., the measuring frame 4 sleeved on male connector 2, the same below) so that the two movable scales 15 respectively abut against the outer surfaces on both sides of male connector 2, and calculate the outer diameter of male connector 2; outer diameter of male connector 2 R2=L-L3-L4; where L is the length of the track where the movable scale 15 is located, L3 is the distance in the width direction between one of the movable scales 15 and the outer edge of the corresponding measuring frame 4, and L4 is the distance in the width direction between the other movable scale 15 and the outer edge of the corresponding measuring frame 4.

[0035] Length measurement of female connector 3: The end reflector 9 of the sliding female connector 3 measuring frame 4 is made flush with the bottom of the female connector 3. The length of the female connector 3 is measured by the distance sensor 8 and the threaded distance sensor 16 at the upper end of the measuring frame 4.

[0036] Male connector 2 length measurement: Slide the end reflector 9 of the male connector 2 measuring frame 4 so that the end reflector 9 is flush with the bottom of the male connector 2. The value measured by the distance sensor 8 at the upper end of the measuring frame 4 is the length of the male connector 2.

[0037] Measurement of the internal thread length of the female end connector 3: The thread distance sensor 16 of the sliding female end connector 3 measuring frame 4 is used to make the light of the thread distance sensor 16 shine on the inner end of the internal thread of the female end connector 3. The value measured by the thread distance sensor 16 is the internal thread length of the female end connector 3.

[0038] Measurement of the internal thread length of male connector 2: The thread distance sensor 16 of the sliding male connector 2 measuring frame 4 is used to illuminate the end of the external thread of the male connector 2 with light from the thread distance sensor 16. The value measured by the thread distance sensor 16 is the internal thread length of the male connector 2.

[0039] All measured values ​​are transmitted to the industrial control computer via signal transmission. After calculation, the industrial control computer displays the full-size information of the drill rod 1 on the display screen 6 of the measuring frame 4.

Claims

1. A device for intelligent measurement of the full dimensions of drill pipe, characterized in that, include Measuring frame: There are two measuring frames that are independent of each other and opposite to each other. The measuring frame has a space for the drill pipe joint to extend into in the length direction, and a positioning surface is formed inside the measuring frame for abutting against the end face of the drill pipe joint. End-mounted distance sensor: fixed on the measuring frame and located in the same vertical plane as the positioning surface; End reflector: It is slidably mounted on the measuring frame along the length of the measuring frame and is positioned opposite to the end distance sensor, so that the distance between the measuring positioning surface of the end distance sensor and the end reflector is equal. Threaded distance sensor: Slidably mounted on the positioning surface along the width direction of the measuring frame; Outside diameter calipers: installed inside the measuring frame along the width direction, at one end close to the positioning surface; Full-length ranging sensor: fixed to one of the two measuring frames, and located in the same vertical plane as the positioning surface of the measuring frame; Full-length reflector: It is slidably set in the other of the two measuring frames along the length of the measuring frame and is set opposite to the full-length distance measuring sensor, so that the full-length distance measuring sensor measures the distance between the corresponding positioning surface and the full-length reflector; Industrial control computer: Connects to the end range sensor, thread range sensor, outside diameter caliper and full length range sensor.

2. The device for intelligent measurement of the full dimensions of drill pipe according to claim 1, characterized in that, The positioning surface is made of magnetic material.

3. The device for intelligent measurement of the full dimensions of drill pipe according to claim 2, characterized in that, It also includes a drill rod bracket for supporting the drill rod, the height of which is adapted to the height of the measuring frame.

4. The device for intelligent measurement of the full dimensions of drill pipe according to claim 3, characterized in that, The drill rod bracket includes a pair of support columns extending along the width of the measuring frame. The support columns have grooves for placing the drill rod. The measuring frame is equipped with casters on the side facing the ground.

5. The device for intelligent measurement of the full dimensions of drill pipe according to claim 4, characterized in that, A height adjustment device is fixed between the measuring frame and the moving wheels.

6. A device for intelligent measurement of the full dimensions of drill pipe according to any one of claims 1-5, characterized in that, The outer diameter caliper includes two movable scales arranged along the height direction. The measuring frame has a track along the width direction of the measuring frame. The movable scales are slidably arranged in the track, and the two movable scales are located in the same plane. An electronic measuring mechanism for measuring the distance between the movable scales and the corresponding outer edge of the measuring frame is provided between the movable scales and the track. The electronic measuring mechanism is connected to the industrial control computer.

7. The device for intelligent measurement of the full dimensions of drill pipe according to claim 6, characterized in that, The movable ruler is fixed with a handle for easy operation of sliding the movable ruler.

8. A method for intelligent measurement of the full dimensions of drill pipe, implemented by the device for intelligent measurement of the full dimensions of drill pipe as described in any one of claims 1-7, characterized in that, Includes the following steps, Measurement frame installation: Place the two measurement frames onto the male and female connectors of the drill pipe respectively, and make the ends of the male and female connectors abut against the positioning surfaces of the corresponding measurement frames. At the same time, align the full-length reflector with the full-length distance sensor to complete the installation of the measurement frames. Effective length measurement of drill pipe: Slide the full-length reflector until it is flush with the end of the corresponding joint. The value measured by the full-length distance sensor is the effective length of the drill pipe. Female connector outer diameter measurement: Slide the outer diameter caliper of the female connector measuring frame, so that the outer diameter caliper is against the outer surface of the female connector, and the outer diameter of the female connector is obtained by calculation. Male connector outer diameter measurement: Slide the outer diameter caliper of the male connector measuring frame until the caliper touches the outer surface of the male connector, and calculate the outer diameter of the male connector. Female connector length measurement: Slide the end reflector of the female connector measuring frame until the end reflector is flush with the bottom of the female connector. The length of the female connector is measured by the threaded distance sensor at the end of the measuring frame. Male connector length measurement: Slide the end reflector of the male connector measuring frame until it is flush with the bottom of the male connector. The value measured by the distance sensor at the upper end of the measuring frame is the length of the male connector. Measurement of the internal thread length of the female end connector: The thread distance sensor of the sliding female end connector measuring frame is used to illuminate the inner end of the internal thread of the female end connector with light from the thread distance sensor. The value measured by the thread distance sensor is the internal thread length of the female end connector. Measurement of the internal thread length of the male connector: The thread distance sensor of the sliding male connector measuring frame is used to illuminate the end of the external thread of the male connector. The value measured by the thread distance sensor is the internal thread length of the male connector. All measured values ​​were transmitted to the industrial control computer via signal transmission.

9. The method for intelligent measurement of the full dimensions of drill pipe according to claim 8, characterized in that, The outer diameter of the female connector R1 = L - L1 - L2; Where L is the length of the track where the moving scale is located, L1 is the distance between one of the moving scales and the outer edge of the corresponding measuring frame, and L2 is the distance between the other moving scale and the outer edge of the corresponding measuring frame; Male connector outer diameter R2 = L - L3 - L4; Where L is the length of the track where the moving ruler is located, L3 is the distance between one of the moving rulers and the outer edge of the corresponding measuring frame, and L4 is the distance between the other moving ruler and the outer edge of the corresponding measuring frame.

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