Dynamic pushing type guiding tool testing system and testing method thereof

Abstract

The invention discloses a dynamic pushing type guiding tool test system and a test method thereof. The dynamic pushing type guiding tool test system comprises a test platform, an ultrasonic distance measurement module, an image acquisition module and an upper computer. According to the dynamic pushing type guiding tool test system, the test platform, the ultrasonic distance measurement module, the image acquisition module and the upper computer are integrated to form a complete test system, and the integrated functions of position measurement, state monitoring, data processing and fault judgment are achieved. Compared with an existing single-function testing device, the system can obtain the position of the drill bit, the tool face angle data and the working state image of the wing rib at the same time, multi-dimensional basis is provided for performance evaluation of the wing rib, the defects that in the prior art, the testing dimension is single, and the working state of the wing rib cannot be comprehensively judged are overcome, and testing comprehensiveness and reliability are remarkably improved. According to the testing method of the dynamic pushing type guiding tool testing system, a standardized testing process including building, measuring, monitoring, analyzing and continuous monitoring is provided.

Description

Technical Field

[0001] This invention relates to the field of oil drilling and production engineering technology, and in particular to a dynamic push-type guide tool testing system and its testing method. Background Technology

[0002] Rotary steerable drilling technology is representative and advanced in the oil and gas drilling field. The rotary steerable drilling system is the core of this technology and is widely used in offshore and onshore oilfields both domestically and internationally. As a crucial component of the rotary steerable system, the dynamic push-type rotary steerable drilling tool withstands complex loads during steerable drilling operations. Failure to do so will affect the safety of drilling operations and reduce drilling efficiency. Therefore, it is essential to conduct research on the steerable performance of dynamic push-type rotary steerable drilling tools. Testing and measuring these tools during the research process are crucial experimental methods to ensure their accuracy and reliability.

[0003] Currently, there is a lack of a device that can comprehensively simulate complex downhole working conditions, accurately monitor the working status of the ribs and diagnose faults, and provide strong support for the performance optimization and reliability improvement of the guiding tool. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a dynamic push-type guide tool testing system and its testing method.

[0005] The technical solution adopted by the present invention to solve its technical problem is: to construct a dynamic push-type guide tool testing system for testing dynamic push-type guide tools. The dynamic push-type guide tool includes a drill collar, a drill bit installed on one end of the drill collar, and ribs installed on the side of the drill collar. The dynamic push-type guide tool testing system includes a testing platform, an ultrasonic ranging module, an image acquisition module, and a host computer. The drill collar, the ultrasonic ranging module, and the image acquisition module are all installed on the test platform, and the ultrasonic ranging module and the image acquisition module are both connected to the host computer. The ultrasonic ranging module is used to measure the position of the drill bit, the image acquisition module is used to capture the working status of the ribs, and the host computer is used to receive and process data and perform fault diagnosis.

[0006] In some embodiments, the test platform includes a motor, a connecting rod, a motor bracket, a mounting base, a shock absorber, a test device bracket, a water outlet, a fixed platform, and a drill positioning base; The motor bracket and the test device bracket are both mounted on the fixed platform. The motor is mounted on the motor bracket, and the output end of the motor is connected to the drill bit positioning seat through the connecting rod. The motor is used to drive the drill bit positioning seat to rotate. The drill collar is installed inside the drill bit positioning seat. The mounting base is installed on the test device bracket. The ultrasonic ranging module and the image acquisition module are both installed on the inner wall of the mounting base. The shock absorber is installed between the drill bit positioning base and the mounting base. The water outlet is used to discharge the internal fluid of the drill bit positioning base.

[0007] In some embodiments, the ultrasonic ranging module includes three ultrasonic probes, a pulse generator, and a data acquisition card; The three ultrasonic probes are mounted on the inner wall of the mounting base at 120° intervals; The pulse generator is electrically connected to the ultrasonic probe and is used to generate a pulse excitation signal to drive the ultrasonic probe to emit ultrasonic waves. The data acquisition card is electrically connected to the ultrasonic probe and the host computer, respectively, and is used to acquire the echo signal received by the ultrasonic probe and transmit it to the host computer.

[0008] In some embodiments, the dynamic push-type guide tool testing system further includes a smooth surface layer wrapped around the outside of the drill bit and a sound-absorbing material covering the inner wall of the mounting base. The smooth surface layer is used to make the ultrasonic waves approximately totally reflected, and the sound-absorbing material is used to reduce the interference of multiple reflections from the pipe wall on the ultrasonic signal.

[0009] In some embodiments, the image acquisition module includes three camera modules, which are fixed on the inner wall of the mounting base. The three camera modules are configured one-to-one with the three ribs to capture the retraction action and pushing state of the corresponding ribs in real time.

[0010] In this embodiment, a testing method for a dynamic push-and-pull guidance tool testing system is also constructed, which is based on the aforementioned dynamic push-and-pull guidance tool testing system and includes the following steps: S1. Build a dynamic push-type guide tool test system, install the dynamic push-type guide tool on the test platform, and ensure that the ultrasonic ranging module, image acquisition module and host computer communicate normally. S2. The ultrasonic ranging module is controlled by the host computer to measure the drill bit position and calculate the tool face angle. S3. The image acquisition module captures images of the working status of the ribs in real time and transmits them to the host computer. S4. The host computer combines the tool face angle data and the working status image of the rib to analyze the working condition of the rib and make fault judgments. S5. Repeat steps S2 to S4 to achieve continuous monitoring of the dynamic push-type guide tool testing system.

[0011] In some embodiments, step S2 includes: S21. The host computer controls the pulse generator to generate a pulse excitation signal, which acts on the ultrasonic probe to make it emit ultrasonic waves, and at the same time triggers the data acquisition card to record the ultrasonic emission time t1. S22. After the ultrasonic wave is reflected by the smooth surface outside the drill bit, it returns to the ultrasonic probe. The data acquisition card collects the echo signal and transmits it to the host computer. S23. The host computer uses a filtering method to process the echo signal, obtains the ultrasonic wave reception time t2, and calculates the ultrasonic wave propagation time t=t2-t1. S24. Based on the speed of ultrasonic wave propagation in air c, calculate the distance l from the drill bit to each ultrasonic probe, l = ct / 2, and obtain three distance data l1, l2, l3; S25. Establish a rectangular coordinate system with the center point of the mounting base section as the origin, and record the coordinates of the three ultrasonic probes as (x1, y1), (x2, y2), and (x3, y3). Combine the distance data l1, l2, and l3 to solve the coordinates of the corresponding points of the three ultrasonic probes on the drill bit section. S26. Based on the characteristic that the drill bit cross-section is a standard circle, the coordinates obtained in step S25 are grouped and substituted into the equation of the circle (xa)² + (yb)² = R², where (a,b) are the coordinates of the circle center and R is the drill bit radius. Three sets of circle center coordinates are calculated, and the drill bit circle center coordinates are obtained after weighted averaging. , ); S27. According to the coordinates of the center of the circle ( , Calculate the current gravity tool face angle θ.

[0012] In some embodiments, in step S25, the three ultrasonic probes are a first ultrasonic probe, a second ultrasonic probe, and a third ultrasonic probe, respectively. The coordinates of the drill bit cross-section point corresponding to the first ultrasonic probe are (x1-l1, y1), and the coordinates of the drill bit cross-section point corresponding to the second ultrasonic probe are... The coordinates of the drill bit cross-section point corresponding to the third ultrasonic probe are: .

[0013] In some embodiments, in step S27, the current gravity tool face angle θ is calculated through geometric operations. The calculation logic is as follows: when When θ = arctan( / ); when When θ = 90° + arctan(- / ); when When θ = 180° + arctan( / ); when When θ = 270° + arctan(- / ).

[0014] In some embodiments, in step S4, when performing fault judgment, the host computer receives the working status image of the rib transmitted by the image acquisition module, and at the same time retrieves the actual gravity tool face angle calculated in step S2, compares the actual gravity tool face angle with the preset tool face angle, and when the deviation value between the actual gravity tool face angle and the preset tool face angle is greater than the preset deviation threshold, it is determined that the corresponding rib has failed, the fault time is recorded and an alarm signal is issued.

[0015] The implementation of this invention has the following beneficial effects: This dynamic push-and-hold guide tool testing system integrates a testing platform, ultrasonic ranging module, image acquisition module, and host computer to form a complete testing system, realizing integrated functions of position measurement, status monitoring, data processing, and fault diagnosis. Compared with existing single-function testing devices, this system can simultaneously acquire drill bit position, tool face angle data, and rib working status images, providing multi-dimensional basis for rib performance evaluation. It solves the shortcomings of existing technologies, which have a single testing dimension and cannot comprehensively judge the rib working status, significantly improving the comprehensiveness and reliability of the test. The testing method of this dynamic push-and-hold guide tool testing system proposes a standardized testing process of setup, measurement, monitoring, analysis, and continuous monitoring, with clear logical steps and strong operability. By repeatedly executing the measurement and monitoring steps, the continuous tracking of the rib working status during the dynamic process is achieved, solving the problem that existing static tests cannot reflect the dynamic performance of the rib. Simultaneously, comprehensive analysis combining data and images improves the accuracy of fault diagnosis, providing a standardized method for the dynamic performance evaluation of the rib and drill bit. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the dynamic push-type guide tool testing system in some embodiments of the present invention; Figure 2 This is an internal sectional view of the overall structure of the dynamic push-type guide tool testing system in some embodiments of the present invention; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 3 Axial section view; Figure 5 yes Figure 2 Enlarged view of point B in the middle; Figure 6 yes Figure 5 Axial cross-sectional view. Detailed Implementation

[0017] To provide a clearer understanding of the technical features, objectives, and effects of this invention, specific embodiments are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this invention.

[0018] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0019] Please see Figures 1 to 6This is a dynamic push-type guide tool testing system according to some embodiments of the present invention, used to test dynamic push-type guide tools. The dynamic push-type guide tool includes a drill collar 11, a drill bit 12 mounted on one end of the drill collar 11, and ribs 13 mounted on the side of the drill collar 11. The dynamic push-type guide tool testing system includes a test platform 2, an ultrasonic ranging module 3, an image acquisition module 4, and a host computer. The drill collar 11, the ultrasonic ranging module 3, and the image acquisition module 4 are all mounted on the test platform 2, and both the ultrasonic ranging module 3 and the image acquisition module 4 are communicatively connected to the host computer. The ultrasonic ranging module 3 is used to measure the position of the drill bit 12, the image acquisition module 4 is used to capture the working state of the ribs 13, and the host computer is used to receive and process data and perform fault diagnosis.

[0020] Understandably, for dynamic push-and-hold rotary steerable drilling, the guiding principle is as follows: three ribs 13 mounted on the drill collar 11 regularly strike the surrounding well wall to achieve directional control, including increasing, stabilizing, and decreasing the inclination, as well as wellbore trajectory control. However, in actual drilling, the timing, position, and force of the ribs 13 striking the well wall are affected by many factors and have a certain degree of uncertainty. Therefore, it is necessary to develop a testing device to determine the actual pushing force, pushing position, and pushing time generated during the rib 13's striking process, and to study the relevant influencing factors and their compensation measures. This dynamic push-and-hold steerable tool testing system integrates the testing platform 2, ultrasonic ranging module 3, image acquisition module 4, and upper-level mechanism into a complete testing system, realizing integrated functions of position measurement, status monitoring, data processing, and fault diagnosis. Compared with existing single-function testing devices, this system can simultaneously acquire the position of drill bit 12, tool face angle data, and working status images of rib 13, providing multi-dimensional basis for performance evaluation of rib 13. It solves the shortcomings of existing technologies that have a single testing dimension and cannot comprehensively judge the working status of rib 13, and significantly improves the comprehensiveness and reliability of testing.

[0021] like Figure 1 and Figure 2As shown, the test platform 2 includes a motor 21, a connecting rod 22, a motor bracket 23, a mounting base 24, a shock absorber 25, a test device bracket 26, a water outlet 27, a fixed platform 28, and a drill bit positioning seat 29. The motor bracket 23 and the test device bracket 26 are both mounted on the fixed platform 28. The motor 21 is mounted on the motor bracket 23, and its output end is connected to the drill bit positioning seat 29 via the connecting rod 22. The motor 21 drives the drill bit positioning seat 29 to rotate. The drill collar 11 is installed inside the drill bit positioning seat 29. The mounting base 24 is mounted on the test device bracket 26. The ultrasonic ranging module 3 and the camera module 41 are both mounted on the inner wall of the mounting base 24. The shock absorber 25 is installed between the drill bit positioning seat 29 and the mounting base 24. The water outlet 27 is used to discharge the internal fluid of the drill bit positioning seat 29. The test platform 2 uses an electric motor 21 to drive the drill collar 11 to rotate, simulating dynamic drilling conditions. A vibration damper 25 is fixedly installed on the inner wall of the mounting base 24, and the drill string positioning seat 29 can rotate relative to the vibration damper 25. The vibration damper 25 reduces vibration interference. The mounting base 24 and the drill string positioning seat 29 form a closed test chamber, and the water outlet 27 ensures fluid circulation. The coordinated operation of all components accurately simulates the complex mechanical and fluid environments downhole. Compared to a simple test platform, this design significantly improves the realism of the simulation, ensuring that the test results accurately reflect the working performance of the rib 13 during actual drilling.

[0022] like Figure 5 and Figure 6 As shown, the ultrasonic ranging module 3 includes three ultrasonic probes 31, a pulse generator, and a data acquisition card. The three ultrasonic probes 31 are mounted on the inner wall of the mounting base 24 at 120° intervals. The pulse generator is electrically connected to the ultrasonic probes 31 and generates pulse excitation signals to drive the ultrasonic probes 31 to emit ultrasonic waves. The data acquisition card is electrically connected to the ultrasonic probes 31 and the host computer, respectively, and is used to acquire the echo signals received by the ultrasonic probes 31 and transmit them to the host computer. Specifically, by arranging the three ultrasonic probes 31 at 120° intervals, the precise positioning of the drill bit 12 is achieved using the principle of triangulation. Compared with single-probe or dual-probe measurement methods, this arrangement can effectively eliminate measurement blind spots and improve the uniformity and accuracy of position measurement. At the same time, through the coordinated work of the pulse generator and the data acquisition card, the precise transmission and reception of ultrasonic signals are achieved, providing high-quality raw data for tool face angle calculation and ensuring the accuracy of subsequent data processing.

[0023] The dynamic push-and-hold guide tool testing system also includes a smooth surface layer wrapped around the drill bit 12 and sound-absorbing material covering the inner wall of the mounting base 24. The smooth surface layer ensures near total internal reflection of ultrasonic waves, while the sound-absorbing material reduces interference from multiple reflections on the ultrasonic signal caused by the inner wall of the mounting base 24. By setting a smooth surface layer on the outside of the drill bit 12 and covering the inner wall of the mounting base 24 with sound-absorbing material, an optimized ultrasonic propagation environment is created. The smooth surface layer ensures near total internal reflection of ultrasonic waves, improving the echo signal strength and avoiding signal loss due to insufficient reflection. The sound-absorbing material suppresses interference signals generated by multiple reflections from the inner wall of the mounting base 24, solving the key problem of signal crosstalk in ultrasonic ranging, significantly improving the recognition accuracy of ultrasonic signals, and thus improving the measurement accuracy of the drill bit 12 position and tool face angle. The sound-absorbing material can be porous polyurethane foam or glass wool.

[0024] like Figure 3 and Figure 4 As shown, the image acquisition module 4 includes three camera modules 41, which are fixed to the inner wall of the mounting base 24. Each camera module 41 corresponds to one of the three ribs 13, and is used to capture the retraction and pushing states of the corresponding ribs 13 in real time. By using three camera modules 41 corresponding to each of the three ribs 13, and ensuring that the camera modules 41 are fixed and do not rotate with the drill collar 11, the retraction and pushing states of each rib 13 can be captured accurately and in real time. This design avoids image blurring or missed shots caused by the rotation of the ribs 13, and enables independent monitoring of the working state of a single rib 13, providing accurate image support for fault location and solving the deficiency of existing technologies in accurately identifying faults in a single rib 13.

[0025] In this embodiment, a testing method for a dynamic push-type guidance tool testing system is also constructed, which is based on the above-mentioned dynamic push-type guidance tool testing system and includes the following steps: S1. Build a dynamic push-type guide tool test system, install the dynamic push-type guide tool on the test platform 2, and ensure that the ultrasonic ranging module 3, the image acquisition module 4 and the host computer communicate normally. S2. The ultrasonic ranging module 3 is controlled by the host computer to measure the position of the drill bit 12 and calculate the tool face angle. S3. The image acquisition module 4 captures images of the working status of the rib 13 in real time and transmits them to the host computer. S4. The host computer combines the tool face angle data with the working status image of rib 13 to analyze the working status of rib 13 and make fault judgments. S5. Repeat steps S2 to S4 to achieve continuous monitoring of the dynamic push-type guide tool testing system.

[0026] The testing method for this dynamic push-type guide tool testing system proposes a standardized testing process encompassing setup, measurement, monitoring, analysis, and continuous monitoring. The steps are logically clear and highly operable. By repeatedly executing the measurement and monitoring steps, the working status of the rib 13 is continuously tracked during the dynamic process, solving the problem that existing static tests cannot reflect the dynamic performance of the rib 13. Simultaneously, comprehensive analysis combining data and images improves the accuracy of fault diagnosis, providing a standardized method for evaluating the dynamic performance of the rib 13 and drill bit 12.

[0027] Step S2 includes: S21. The host computer controls the pulse generator to generate a pulse excitation signal, which acts on the ultrasonic probe 31 to make it emit ultrasonic waves, and at the same time triggers the data acquisition card to record the ultrasonic emission time t1. S22. After the ultrasonic wave is reflected by the smooth surface of the drill bit 12, it returns to the ultrasonic probe 31. The data acquisition card collects the echo signal and transmits it to the host computer. S23. The host computer uses a filtering method to process the echo signal, obtains the ultrasonic wave reception time t2, and calculates the ultrasonic wave propagation time t=t2-t1. S24. Based on the speed of ultrasonic wave propagation in air c, calculate the distance l = ct / 2 from the drill bit 12 to each ultrasonic probe 31, and obtain three distance data l1, l2, l3. The three distance data l1, l2, l3 are specifically the distances from the surface of the drill bit 12 to the three ultrasonic probes 31. S25. Establish a rectangular coordinate system with the center point of the mounting base 24 section as the origin, and record the coordinates of the three ultrasonic probes 31 as (x1, y1), (x2, y2), and (x3, y3). Combine the distance data l1, l2, and l3 to solve the coordinates of the corresponding points of the three ultrasonic probes 31 on the drill bit 12 section. S26. Based on the characteristic that the cross-section of drill bit 12 is a standard circle, the coordinates obtained in step S25 are grouped and substituted into the equation of the circle (xa)² + (yb)² = R², where (a,b) are the coordinates of the center of the circle and R is the radius of drill bit 12. Three sets of center coordinates are calculated, and the three sets of center coordinates can be calculated separately. , ), ( , ), ( , The coordinates of the drill bit center are obtained after weighted averaging. , ); S27. According to the coordinates of the center of the circle ( , Calculate the current gravity tool face angle θ.

[0028] Step S2 refines the specific steps of ultrasonic ranging. Through a series of precise calculation processes, including time difference calculation, coordinate establishment, circular equation solving, and weighted averaging, it achieves high-precision solutions for the position of drill bit 12 and tool face angle. This step design fully considers the accuracy of geometric measurement and the stability of data processing. The weighted averaging process further reduces the error of a single measurement, ensuring the reliability of the tool face angle calculation results and providing accurate data support for the performance analysis of rib 13.

[0029] In step S25, the three ultrasonic probes 31 are the first ultrasonic probe, the second ultrasonic probe, and the third ultrasonic probe, respectively. The coordinates of the three ultrasonic probes 31 are known to be (x1, y1), (x2, y2), and (x3, y3), respectively. The ultrasonic wave emission direction of the first ultrasonic probe is -90°, and the coordinates of the drill bit cross-section point corresponding to the first ultrasonic probe are (x1-l1, y1). The coordinates of the drill bit cross-section point corresponding to the second ultrasonic probe are... The coordinates of the drill bit cross-section point corresponding to the third ultrasonic probe are: The method for determining the coordinates of the drill bit cross-section points corresponding to the three ultrasonic probes 31 was clarified. Considering the 120° interval arrangement of the ultrasonic probes 31, the coordinates of the reflection points were calculated using trigonometric functions, ensuring the scientific validity and accuracy of the coordinate solution. This design avoids the blindness of coordinate calculations, laying a solid foundation for subsequent solution of the circle equation and determination of the circle center coordinates, and further improving the accuracy of drill bit 12 position measurement.

[0030] In step S27, the current gravity tool face angle θ is calculated through geometric operations. The calculation logic is as follows: when When θ = arctan( / );when When θ = 90° + arctan(- / );when When θ = 180° + arctan( / );when When θ = 270° + arctan(- / For the center coordinates of different quadrants, corresponding tool face angle calculation logic was designed to ensure the comprehensiveness and accuracy of the tool face angle calculation. Compared with a single calculation formula, this logic can adapt to any position of the center coordinates in the rectangular coordinate system, avoid calculation errors caused by changes in coordinate quadrants, and ensure that the tool face angle data can truly reflect the deflection state of drill bit 12, providing accurate angular basis for evaluating the working performance of rib 13.

[0031] In step S4, during fault diagnosis, the host computer receives the working status image of the rib 13 transmitted by the image acquisition module 4, and simultaneously retrieves the actual gravity tool face angle calculated in step S2. The actual gravity tool face angle is compared with a preset tool face angle. When the deviation between the actual gravity tool face angle and the preset tool face angle exceeds a preset deviation threshold, the corresponding rib 13 is determined to be faulty, the fault time is recorded, and an alarm signal is issued. This dual fault diagnosis mechanism, employing both data comparison and image verification, analyzes the deviation between the actual tool face angle and the preset value, combined with the working status image of the rib 13, to achieve accurate fault diagnosis and location. Compared to a single data threshold judgment method, this mechanism effectively avoids misjudgment and can quickly locate the faulty rib 13, providing a clear direction for fault diagnosis and repair, significantly improving the practicality of the testing system and the efficiency of fault handling. Furthermore, by using the camera module 41 to monitor the working status of the rib 13 in real time, the dynamic changes in the movement trajectory and pushing position of the rib 13 can be collected in real time. By combining the changes in the tool face angle, when a fault occurs in rib 13, the fault location of rib 13 can be determined immediately, providing a reliable basis for fault diagnosis and performance optimization.

[0032] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A dynamic push-type guide tool testing system for testing dynamic push-type guide tools, the dynamic push-type guide tool comprising a drill collar (11), a drill bit (12) mounted on one end of the drill collar (11), and ribs (13) mounted on the side of the drill collar (11), characterized in that, The dynamic push-type guide tool testing system includes a testing platform (2), an ultrasonic ranging module (3), an image acquisition module (4), and a host computer; The drill collar (11), the ultrasonic ranging module (3), and the image acquisition module (4) are all installed on the test platform (2), and the ultrasonic ranging module (3) and the image acquisition module (4) are all connected to the host computer. The ultrasonic ranging module (3) is used to measure the position of the drill bit (12), the image acquisition module (4) is used to capture the working status of the rib (13), and the host computer is used to receive, process data, and perform fault judgment.

2. The dynamic push-and-hold guide tool testing system according to claim 1, characterized in that, The test platform (2) includes a motor (21), a connecting rod (22), a motor bracket (23), a mounting base (24), a shock absorber (25), a test device bracket (26), a water outlet (27), a fixed platform (28), and a drill positioning base (29). The motor bracket (23) and the test device bracket (26) are both mounted on the fixed platform (28). The motor (21) is mounted on the motor bracket (23). The output end of the motor (21) is connected to the drill bit positioning seat (29) through the connecting rod (22). The motor (21) is used to drive the drill bit positioning seat (29) to rotate. The drill collar (11) is installed inside the drill bit positioning seat (29). The mounting base (24) is mounted on the test device bracket (26). The ultrasonic ranging module (3) and the image acquisition module (4) are both mounted on the inner wall of the mounting base (24). The shock absorber (25) is installed between the drill positioning seat (29) and the mounting base (24). The water outlet (27) is used to discharge the internal fluid of the drill positioning seat (29).

3. The dynamic push-and-hold guide tool testing system according to claim 2, characterized in that, The ultrasonic ranging module (3) includes three ultrasonic probes (31), a pulse generator, and a data acquisition card; The three ultrasonic probes (31) are mounted on the inner wall of the mounting base (24) at 120° intervals; The pulse generator is electrically connected to the ultrasonic probe (31) and is used to generate a pulse excitation signal to drive the ultrasonic probe (31) to emit ultrasonic waves; The data acquisition card is electrically connected to the ultrasonic probe (31) and the host computer, respectively, and is used to acquire the echo signal received by the ultrasonic probe (31) and transmit it to the host computer.

4. The dynamic push-and-hold guide tool testing system according to claim 2, characterized in that, The dynamic push-type guide tool testing system also includes a smooth surface layer wrapped around the outside of the drill bit (12) and a sound-absorbing material covering the inner wall of the mounting base (24). The smooth surface layer is used to make the ultrasonic waves approximately totally reflected, and the sound-absorbing material is used to reduce the interference of multiple reflections from the pipe wall on the ultrasonic signal.

5. The dynamic push-and-hold guide tool testing system according to claim 2, characterized in that, The image acquisition module (4) includes three camera modules (41). The three camera modules (41) are fixed on the inner wall of the mounting base (24). The three camera modules (41) are set one-to-one with the three wing ribs (13) to capture the retraction action and pushing state of the corresponding wing ribs (13) in real time.

6. A test method for a dynamic push-and-pull guide tool test system, based on the dynamic push-and-pull guide tool test system according to any one of claims 1 to 5, characterized in that, Including the following steps: S1. Build a dynamic push-type guide tool test system, install the dynamic push-type guide tool on the test platform (2), and ensure that the ultrasonic ranging module (3), image acquisition module (4) communicate normally with the host computer. S2. The ultrasonic ranging module (3) is controlled by the host computer to measure the position of the drill bit (12) and calculate the tool face angle; S3. The working status image of the rib (13) is captured in real time by the image acquisition module (4) and transmitted to the host computer. S4. The host computer combines the tool face angle data and the working status image of the rib (13) to analyze the working status of the rib (13) and make fault judgments. S5. Repeat steps S2 to S4 to achieve continuous monitoring of the dynamic push-type guide tool testing system.

7. The test method for the dynamic push-and-hold guide tool test system according to claim 6, characterized in that, Step S2 includes: S21, The host computer controls the pulse generator to generate a pulse excitation signal, which is applied to the ultrasonic probe (31) to make it emit ultrasonic waves, and at the same time triggers the data acquisition card to record the ultrasonic emission time t1; S22. After the ultrasonic wave is reflected by the smooth surface outside the drill bit (12), it returns to the ultrasonic probe (31). The data acquisition card collects the echo signal and transmits it to the host computer. S23. The host computer uses a filtering method to process the echo signal, obtains the ultrasonic wave reception time t2, and calculates the ultrasonic wave propagation time t=t2-t1. S24. Based on the speed of ultrasonic wave propagation in air c, calculate the distance l = ct / 2 from the drill bit (12) to each ultrasonic probe (31) to obtain three distance data l1, l2, l3; S25. Establish a rectangular coordinate system with the center point of the mounting base (24) section as the origin, and record the coordinates of the three ultrasonic probes (31) as (x1,y1), (x2,y2), and (x3,y3). Combine the distance data l1, l2, and l3 to solve the coordinates of the corresponding points of the three ultrasonic probes (31) on the drill bit (12) section respectively. S26. Based on the characteristic that the cross section of the drill bit (12) is a standard circle, the coordinates obtained in step S25 are grouped and substituted into the equation of the circle (xa)² + (yb)² = R², where (a,b) are the coordinates of the center of the circle and R is the radius of the drill bit (12). Three sets of center coordinates are calculated, and the center coordinates of the drill bit are obtained by weighted averaging. , ); S27. According to the coordinates of the center of the circle ( , Calculate the current gravity tool face angle θ.

8. The test method for the dynamic push-and-hold guide tool test system according to claim 6, characterized in that, In step S25, the three ultrasonic probes (31) are a first ultrasonic probe, a second ultrasonic probe, and a third ultrasonic probe, respectively. The coordinates of the drill bit cross-section point corresponding to the first ultrasonic probe are (x1-l1, y1), and the coordinates of the drill bit cross-section point corresponding to the second ultrasonic probe are... The coordinates of the drill bit cross-section point corresponding to the third ultrasonic probe are: .

9. The test method for the dynamic push-and-hold guide tool test system according to claim 6, characterized in that, In step S27, the current gravity tool face angle θ is calculated through geometric operations. The calculation logic is as follows: when When θ = arctan( / ); when When θ = 90° + arctan(- / ); when When θ = 180° + arctan( / ); when When θ = 270° + arctan(- / ).

10. The test method for the dynamic push-type guide tool test system according to claim 6, characterized in that, In step S4, when performing fault judgment, the host computer receives the working status image of the wing rib (13) transmitted by the image acquisition module (4), and at the same time retrieves the real gravity tool face angle calculated in step S2, compares the real gravity tool face angle with the preset tool face angle, and when the deviation value between the real gravity tool face angle and the preset tool face angle is greater than the preset deviation threshold, it is determined that the corresponding wing rib (13) has a fault, records the fault time and issues an alarm signal.

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