An automatic vertical drilling tool whole machine ground test system

Abstract

The present application relates to a kind of automatic vertical drilling tool ground test system of complete machine, including suspension fixture assembly, drive assembly, measuring push force platform and well inclination angle debugging assembly, suspension fixture assembly is fixedly arranged, for clamping drilling tool;Measuring push force platform is installed below suspension fixture assembly, it is connected with suspension fixture assembly by suspension piece, for measuring the thrust size of multiple thrust blocks on drilling tool;Well inclination angle debugging assembly is installed below measuring push force platform, drive assembly is installed on well inclination angle debugging assembly, for driving drilling tool rotates around its axial direction, well inclination angle debugging assembly is used to adjust drive assembly and drilling tool swing in vertical plane to adjust well inclination angle.The beneficial effects of the present application are compact structure, can be comprehensive to verify the overall working performance of automatic vertical drilling tool test system, and can display and record the data of experimental process, for reliable application and optimization of automatic vertical drilling tool Upgrade good experimental support.

Description

Technical Field

[0001] This invention relates to the field of oil drilling equipment technology, and more specifically to a ground testing system for an automatic vertical drilling tool. Background Technology

[0002] As oil exploration and development become increasingly challenging, the issues of preventing deviation and accelerating drilling in easily deviated formations during deep oil and gas development, preventing deviation in vertical well sections during offshore oil and gas development, and preventing collisions during drilling in high-density cluster wells are all significant factors restricting deep oil and gas exploration and development. Currently, domestically available methods for preventing and correcting deviation in drilling in steep formations mostly come at the cost of sacrificing drilling pressure and reducing mechanical drilling speed. At present, domestic vertical drilling tools are still in the experimental stage and have not yet achieved large-scale mass production and application. Extensive laboratory testing is needed to refine and improve their field engineering applications. Automated vertical drilling tools are integrated downhole closed-loop drilling tools that combine mechanical, electrical, and hydraulic systems. They automatically correct and stabilize deviation during drilling, thereby ensuring the drilling of a vertical wellbore.

[0003] Currently, domestic vertical drilling tool testing equipment has relatively limited functionality and cannot meet testing requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a ground testing system for the entire automatic vertical drilling tool, which aims to solve the problems in the prior art.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0006] An automatic vertical drilling tool ground testing system includes a suspension clamp assembly, a drive assembly, a thrust measuring platform, and a well inclination angle adjustment assembly. The suspension clamp assembly is fixedly installed for clamping the drilling tool. The thrust measuring platform is installed below the suspension clamp assembly and connected to it via a suspension component, for measuring the thrust of multiple thrust blocks on the drilling tool. The well inclination angle adjustment assembly is installed below the thrust measuring platform, and the drive assembly is installed on the well inclination angle adjustment assembly for driving the drilling tool to rotate around its own axis. The well inclination angle adjustment assembly is used to adjust the vertical swing of the drive assembly and the drilling tool to adjust the well inclination angle.

[0007] The beneficial effects of this invention are: during the test, after the drilling tool is assembled on the suspension clamp assembly, the thrust of multiple thrust blocks on the drilling tool can be measured by the thrust measuring platform;

[0008] In addition, the well inclination angle of the drilling tool can be adjusted by the well inclination angle adjustment assembly to ensure that the drilling tool can still be driven to rotate in the vertical plane when the well is inclined.

[0009] This invention provides a compact test system that can comprehensively verify the overall performance of automated vertical drilling tools, offering experimental support for the reliable application and optimization of automated vertical drilling tools.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, it also includes a tool face adjustment assembly, on which the well inclination angle adjustment assembly is mounted. The tool face adjustment assembly is used to drive the well inclination angle adjustment assembly and the drilling tool to rotate horizontally in the horizontal plane to adjust the angle of the tool face of the drilling tool.

[0012] The beneficial effect of adopting the above-mentioned further solution is that during the test, after the drilling tool is assembled on the suspension clamp assembly, the thrust of multiple thrust blocks on the drilling tool can be measured by measuring the thrust force platform;

[0013] In addition, the well inclination angle of the drilling tool can be adjusted by the well inclination angle adjustment assembly to ensure that the drive assembly can still drive the drilling tool to rotate around its own axis when the well is inclination.

[0014] At the same time, the angle of the entire drilling tool on the working face can be adjusted by the tool face adjustment assembly to further test the rotation of the drilling tool under different tool face angles.

[0015] Furthermore, it also includes a control console, and the drive assembly, the measuring push force platform, the well inclination angle adjustment assembly, and the tool face adjustment assembly are respectively communicatively connected to the control console.

[0016] The advantages of adopting the above-mentioned further solutions are that during the testing process, the operation of each component can be controlled through the console, resulting in a high degree of intelligence, convenient testing, and high efficiency.

[0017] Furthermore, the tool face adjustment assembly includes a tool face drive component, which is used to drive the well inclination angle adjustment assembly and the drilling tool to rotate in the horizontal plane.

[0018] The beneficial effect of adopting the above-mentioned further scheme is that during the test, the drilling tool can be driven to rotate through the tool face drive component to adjust the angle of the drilling tool on the tool face, and further test the rotation of the drilling tool under different tool face angles, laying a certain theoretical foundation for subsequent actual drilling operations.

[0019] Furthermore, the well inclination angle adjustment assembly includes a lead screw assembly, a disc, and a mounting base. The disc is horizontally mounted on the tool face drive assembly. The lead screw assembly is mounted on the disc, and the mounting base is fixedly mounted on the lead screw assembly. The drive assembly is mounted on the mounting base in a vertically swaying manner.

[0020] The beneficial effect of adopting the above-mentioned further solution is that during the test, the drilling tool is driven to swing in the vertical plane by the lead screw assembly to adjust the well inclination angle of the drilling tool, simulating the drilling tool's inclination correction capability during actual operation;

[0021] In addition, the drive assembly is mounted on the mounting base in an oscillating manner to ensure that the drilling tools are not damaged when adjusting the well inclination angle.

[0022] Furthermore, it also includes a main frame assembly, on which the tool face adjustment assembly and the suspension clamp assembly are respectively mounted.

[0023] The advantages of adopting the above-mentioned further solutions are that the structure is simple, the design is reasonable, the main frame assembly is used to realize the installation of various components, the integration is high, and the use is convenient.

[0024] Furthermore, the suspension clamp assembly includes a support plate and a clamping assembly. The support plate is horizontally fixedly mounted on the main frame assembly; the clamping assembly is mounted on the support plate and is used to clamp drilling tools.

[0025] The advantage of adopting the above-mentioned further solution is that the drilling tool can be clamped by the clamping component during assembly, making assembly convenient.

[0026] Furthermore, the force measurement platform includes a mounting plate and multiple force sensors. The mounting plate is horizontally positioned below the support plate, with a through opening at its center. The sidewall of the opening is evenly spaced with multiple grooves corresponding to multiple thrust blocks on the drilling tool. The multiple force sensors are respectively fixedly installed on the mounting plate at the locations corresponding to the multiple grooves. Multiple lifting rings are evenly spaced and fixedly installed on the edge of the mounting plate. The suspension component includes multiple tension springs, the upper ends of which are respectively connected to the edge of the support plate, and the lower ends of which are respectively connected to the multiple lifting rings.

[0027] The advantage of adopting the above-mentioned further solution is that during the test, the thrust of multiple thrust blocks on the drilling tool can be measured separately by multiple force sensors, making the test convenient;

[0028] In addition, the mounting plate is connected to the bracket plate by multiple tension springs, making assembly convenient.

[0029] Furthermore, the support plate has an annular plate structure, and the clamping assembly includes multiple supports. The multiple supports are evenly spaced along the circumference of the support plate and installed at the center of the support plate, and each of them can move horizontally and be positioned along the radial direction of the support plate.

[0030] The advantage of adopting the above-mentioned further solution is that it utilizes the horizontal movement of multiple supports on the support plate to clamp or release the drilling tool, which facilitates assembly;

[0031] In addition, the design of multiple supports can be adapted to the assembly of drilling tools of various sizes, making it highly versatile and easy to use.

[0032] Furthermore, the clamping assembly also includes a cylinder and multiple inner supports. The cylinder is coaxially and horizontally fixedly mounted on the support plate, and the interior of the support plate is located inside the cylinder. The multiple supports are located inside the support plate, and their upper sides are bent and slidably fitted against the upper surface of the support plate. The multiple inner supports are respectively fixedly mounted on the multiple supports. The cylinder is also evenly spaced with multiple locking screws. Tightening the multiple locking screws causes them to push the multiple inner supports and the multiple supports to move horizontally.

[0033] The advantage of adopting the above-mentioned further solution is that during assembly, multiple locking screws are manually turned to clamp the drilling tool in multiple inner supports, which is simple to operate and saves time and effort. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a partial structural schematic diagram of the present invention;

[0036] Figure 3 This is a schematic diagram of the suspension clamp assembly in this invention;

[0037] Figure 4 This is a schematic diagram of the structure of the platform for measuring the pushing force in this invention;

[0038] Figure 5 for Figure 4 Sectional view along the BB direction;

[0039] Figure 6 This is a schematic diagram of the well inclination angle adjustment assembly in this invention;

[0040] Figure 7 This is a schematic diagram of the tool face adjustment assembly in this invention;

[0041] Figure 8 This is a schematic diagram of the main frame assembly in this invention;

[0042] Figure 9 This is a schematic diagram of the two-layer platform in this invention;

[0043] Figure 10 This is a schematic diagram of the supporting wheel seat structure in this invention;

[0044] Figure 11 This is a schematic diagram of the console structure in this invention.

[0045] The attached diagram lists the components represented by each number as follows:

[0046] 1. Drilling tools; 1-1. Housing; 1-2. Central spindle; 2. Control console; 3. Lead screw assembly; 4. Disc; 5. Mounting base; 6. Main frame assembly; 7. Support plate; 8. Mounting plate; 9. Force sensor; 10. Groove; 11. Lifting ring; 12. Tension spring; 13. Bracket; 14. Cylinder; 15. Inner support; 16. Locking screw; 17. Base; 18. Motor 1; 19. Large gear; 20. Small gear; 21. Clamping screw; 22. Second-level platform; 23. Support wheel seat; 24. Rib plate; 25. Slide rail; 26. Scale; 27. Driven gear; 28. Driving gear; 29. ​​Motor 2. Detailed Implementation

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] Example 1

[0052] like Figures 1 to 11As shown, this embodiment provides a ground testing system for an automatic vertical drilling tool, including a suspension clamp assembly, a drive assembly, a force measuring platform, and a well inclination angle adjustment assembly. The suspension clamp assembly is fixedly installed and used to clamp the drilling tool 1. The force measuring platform is installed below the suspension clamp assembly and is connected to the suspension clamp assembly through a suspension component. It is used to measure the thrust of multiple thrust blocks on the drilling tool 1. The well inclination angle adjustment assembly is installed below the force measuring platform. The drive assembly is installed on the well inclination angle adjustment assembly and is used to drive the drilling tool 1 to rotate around its own axis. The well inclination angle adjustment assembly is used to adjust the swing of the drive assembly and the drilling tool 1 in the vertical plane to adjust the well inclination angle.

[0053] During the test, after the drilling tool is assembled on the suspension clamp assembly, the thrust of multiple thrust blocks on the drilling tool can be measured by the thrust measuring platform.

[0054] In addition, the well inclination angle of the drilling tool can be adjusted by the well inclination angle adjustment assembly to ensure that the drilling tool can still be driven to rotate in the vertical plane when the well is inclined.

[0055] It should be noted that the drilling tool 1 mentioned above uses existing technology, and its specific structure and principle will not be described in detail here.

[0056] The specific structure of the drilling tool 1 can be: a housing 1-1 and a central shaft 1-2. The housing is vertically arranged and is clamped and fixed by a suspension clamp assembly. The central shaft is vertically arranged inside the housing, with its upper end rotatably connected to the upper end of the housing, and its lower end extending vertically downward to the lower end of the housing and connected to the drive assembly. The drive assembly drives the central shaft to rotate.

[0057] Based on the above scheme, the well inclination angle adjustment assembly can be used to adjust the inclination angle (i.e., well inclination angle) of the drilling tool 1 on the vertical plane. Regardless of the angle at which the drilling tool 1 is located, the drive assembly will drive the central axis 1-2 of that angle to rotate around its own axis.

[0058] This embodiment features a compact structure and is a test system that can comprehensively verify the overall working performance of automated vertical drilling tools, providing experimental support for the reliable application and optimization of automated vertical drilling tools.

[0059] Example 2

[0060] Based on Embodiment 1, this embodiment also includes a tool face adjustment assembly. The well inclination angle adjustment assembly is installed on the tool face adjustment assembly. The tool face adjustment assembly is used to drive the well inclination angle adjustment assembly and the drilling tool 1 to rotate in the horizontal plane to adjust the angle of the tool face of the drilling tool 1.

[0061] During the test, after the drilling tool is assembled on the suspension clamp assembly, the thrust of multiple thrust blocks on the drilling tool can be measured by the thrust measuring platform.

[0062] In addition, the well inclination angle of the drilling tool can be adjusted by the well inclination angle adjustment assembly to ensure that the drive assembly can still drive the drilling tool to rotate around its own axis when the well is inclination.

[0063] At the same time, the angle of the entire drilling tool on the working face can be adjusted by the tool face adjustment assembly to further test the rotation of the drilling tool under different tool face angles.

[0064] Based on the above scheme, the tool face adjustment assembly is used to drive the well inclination angle adjustment assembly and the drilling tool 1 to rotate 360° in the horizontal plane in order to adjust the angle of the tool face of the drilling tool 1.

[0065] Example 3

[0066] Based on Embodiment 2, this embodiment also includes a control console 2, and the drive assembly, the measuring push force platform, the well inclination angle adjustment assembly and the tool face adjustment assembly are respectively communicatively connected to the control console 2.

[0067] During the test, the operation of each component is controlled through console 2, which is highly intelligent, convenient and efficient.

[0068] It should be noted that the aforementioned console 2 (equivalent to a controller) uses existing technology, and its specific structure and principle will not be elaborated here.

[0069] In addition, a monitor is installed on the console 2, which is connected to the console 2 via a cable, and the data received by the console 2 will be displayed on the monitor.

[0070] Example 4

[0071] Based on any one of Embodiments 2 to 3, in this embodiment, the tool face adjustment assembly includes a tool face drive component, which is used to drive the well inclination angle adjustment assembly and the drilling tool 1 to rotate in the horizontal plane.

[0072] During the test, the drilling tool can be rotated by the tool face drive component to adjust the angle of the drilling tool on the tool face, and further test the rotation of the drilling tool under different tool face angles, laying a certain theoretical foundation for subsequent actual drilling operations.

[0073] Based on the above scheme, the tool face drive assembly is used to drive the well inclination angle adjustment assembly and the drilling tool 1 to rotate 360° in the horizontal plane in order to adjust the angle of the tool face of the drilling tool 1.

[0074] Example 5

[0075] Based on Embodiment 4, in this embodiment, the well inclination angle adjustment assembly includes a lead screw assembly 3, a disc 4, and a mounting base 5. The disc 4 is horizontally mounted on the tool face drive assembly; the lead screw assembly 3 is mounted on the disc 4, and the mounting base 5 is fixedly mounted on the lead screw assembly 3 (the mounting base 5 is fixedly connected to the nut on the lead screw assembly 3); the drive assembly can be mounted on the mounting base 5 in a vertically swaying manner.

[0076] During the test, the drilling tool was driven to swing in the vertical plane by the lead screw assembly to adjust the well inclination angle of the drilling tool, simulating the drilling tool's inclination correction capability during actual operation;

[0077] In addition, the drive assembly is mounted on the mounting base in an oscillating manner to ensure that the drilling tools are not damaged when adjusting the well inclination angle.

[0078] Preferably, in this embodiment, two slide rails 25 are provided opposite to each other on the disk 4, and the bottom of the mounting base 5 is slidably connected to the two slide rails 25 by a slider. This design is reasonable and increases the stability of the mounting base 5.

[0079] Furthermore, a scale 26 is fixedly installed on the disc 4. The scale 26 extends along the sliding direction of the mounting base 5 and is used to measure the distance the mounting base 5 moves, i.e. the distance the drive assembly swings.

[0080] Preferably, in this embodiment, the drive assembly includes a driven gear 27, two driving gears 28, and two motors 29. The driven gear 27 is coaxially fixedly sleeved on the lower end of the central shaft 1-2. The two motors 29 are mounted opposite each other on the bracket, with their drive ends extending axially along the central shaft 1-2. The two sides of the bracket are rotatably connected to the mounting base 5 via rotating shafts. The two driving gears 28 are coaxially fixedly sleeved on the drive ends of the two motors 29, and they mesh with the driven gear 27 respectively. During operation, the two motors 29 drive the two driving gears 28 to rotate in the same direction. The two driving gears 28 drive the driven gear 27 and the central shaft 1-2 to rotate by meshing with the driven gear 27.

[0081] Example 6

[0082] Based on any one of Embodiments 2 to 5, this embodiment further includes a main frame assembly 6, wherein the tool surface adjustment assembly and the suspension clamp assembly are respectively mounted on the main frame assembly 6.

[0083] The solution has a simple structure and reasonable design. It utilizes the main frame assembly 6 to install various components, resulting in high integration and ease of use.

[0084] Based on the above scheme, the tool face drive assembly includes a base 17, a motor 18, a large gear 19, and a small gear 20. The base 17 has a disc-shaped structure and is horizontally rotatably mounted on the main frame assembly 6. The disc 4 is fixedly mounted on the base 17. The large gear 19 is coaxially fixedly sleeved on the base 17. The motor 18 is fixedly mounted on the main frame assembly 6, with its drive end pointing vertically upward. The small gear 20 is coaxially fixedly sleeved on the drive end of the motor 18 and meshes with the large gear 19. During adjustment, the motor 18 drives the small gear 20 to rotate, thereby driving the base 17 and the disc 4 to rotate 360° on the horizontal plane, thus adjusting the working face angle of the drilling tool 1.

[0085] Example 7

[0086] Based on Embodiment 6, in this embodiment, the suspension clamp assembly includes a support plate 7 and a clamping assembly. The support plate 7 is horizontally fixedly installed on the main frame assembly 6; the clamping assembly is installed on the support plate 7 and is used to clamp the drilling tool 1.

[0087] During assembly, the drilling tools can be clamped by the clamping components, making assembly convenient.

[0088] Based on the above scheme, a second-level platform 22 is fixedly installed on the main frame assembly 6. The second-level platform 22 is provided with a through-hole for the drilling tool 1 to pass through.

[0089] Example 8

[0090] Based on Embodiment 7, in this embodiment, the force measuring platform includes a mounting plate 8 and multiple force sensors 9. The mounting plate 8 is horizontally positioned below the support plate 7, with a through opening at its center. The sidewall of the opening is evenly spaced with multiple grooves 10 corresponding to multiple thrust blocks on the drilling tool. The multiple force sensors 9 are respectively fixedly installed on the mounting plate 8 at positions corresponding to the multiple grooves 10. Multiple lifting rings 11 are evenly spaced and fixedly installed on the edge of the mounting plate 8. The suspension component includes multiple tension springs 12, the upper ends of which are respectively connected to the edge of the support plate 7, and their lower ends are respectively connected to the multiple lifting rings 11.

[0091] During the test, the thrust of multiple thrust blocks on the drilling tool 1 can be measured by multiple force sensors 9, which makes the test convenient.

[0092] In addition, the mounting plate 8 is connected to the bracket plate 7 by multiple tension springs 12, making assembly convenient.

[0093] It should be noted that the drilling tool 1 is circumferentially mounted with multiple push blocks, and the drilling tool 1 is internally equipped with multiple hydraulic cylinders that correspond one-to-one with the multiple push blocks. The telescopic ends of the multiple hydraulic cylinders are respectively connected to the multiple push blocks and are used to push the multiple push blocks to move horizontally.

[0094] In addition, drilling tool 1 uses existing technology, and its specific structure and principle will not be described in detail here.

[0095] Preferably, in this embodiment, there are three push blocks on the drilling tool 1 and three grooves 10.

[0096] In addition, the multiple grooves 10 are arc-shaped grooves, and their shapes match the shapes of the multiple push blocks.

[0097] Preferably, in this embodiment, there are three of each of the above-mentioned lifting rings 11 and tension springs 12, and the support plate 7 is provided with multiple openings evenly spaced apart, with each tension spring 12 having its two ends rotatably connected to the corresponding opening and the corresponding lifting ring 11.

[0098] Preferably, in this embodiment, the mounting plate 8 is composed of three flat plates spliced ​​together, and adjacent two flat plates are fixedly connected by bolts.

[0099] Example 9

[0100] Based on any one of Embodiments 7 to 8, in this embodiment, the support plate 7 has an annular plate structure, and the clamping assembly includes a plurality of supports 13. The plurality of supports 13 are evenly spaced along the circumference of the support plate 7 and are installed at the center of the support plate 7, and each of them can move horizontally along the radial direction of the support plate 7 and be positioned.

[0101] This design utilizes the horizontal movement of multiple supports 13 on the support plate 7 to clamp or release the drilling tool 1, making assembly convenient;

[0102] In addition, the design of multiple supports 13 can be adapted to the assembly of drilling tools 1 of various sizes, making it highly versatile and easy to use.

[0103] Preferably, in this embodiment, the multiple supports 13 are respectively arc-shaped plate structures that match the shape of the support disk 7, which is reasonably designed and matches the shape of the support disk 7 and the drilling tool 1.

[0104] In addition, multiple support wheel seats 23 are fixedly installed at even intervals on the second-level platform 22, and multiple rib plates 24 are fixedly installed at even intervals on the bottom of the aforementioned support plate 7. The support plate 7 is installed on the second-level platform 22, and the multiple rib plates 24 are respectively placed on the multiple support wheel seats 23.

[0105] Preferably, there are three of the aforementioned ribs 24 and support wheel seats 23.

[0106] Example 10

[0107] Based on Embodiment 9, in this embodiment, the clamping assembly further includes a cylinder 14 and a plurality of inner supports 15. The cylinder 14 is coaxially and horizontally fixedly mounted on the support plate 7, and the interior of the support plate 7 is located inside the cylinder 14. The plurality of supports 13 are located inside the support plate 7, and their upper sides are bent and slidably fitted against the upper surface of the support plate 7. The plurality of inner supports 15 are respectively fixedly mounted on the plurality of supports 13. The cylinder 14 is also evenly spaced with a plurality of locking screws 16. Tightening the plurality of locking screws 16 causes them to push the plurality of inner supports 15 and the plurality of supports 13 to move horizontally.

[0108] During assembly, multiple locking screws 16 are manually turned to clamp the drilling tool 1 with multiple inner supports 15. The operation is simple, time-saving and labor-saving.

[0109] Preferably, in this embodiment, the multiple inner supports 15 are each in the form of a bent plate structure, which is vertically arranged, and the upper ends of the bent plates are respectively attached to and welded together with the upper sides of the multiple brackets 13.

[0110] In addition, multiple locking screws 16 correspond to the upper ends of multiple inner supports 15 respectively.

[0111] The drilling tool 1 has multiple recesses evenly spaced on it, and multiple inner supports 15 respectively fit into the multiple recesses of the drilling tool 1.

[0112] In addition, clamping screws 21 are installed on the cylinder 14 at the locations between two adjacent inner supports 15. When the multiple clamping screws 21 are tightened, they abut against the protruding parts between two adjacent concave parts of the drilling tool 1. This design is reasonable and further increases the stability of the drilling tool 1 assembly.

[0113] The working principle of this invention is as follows:

[0114] During the test, after the drilling tool is assembled on the suspension clamp assembly, the thrust of multiple thrust blocks on the drilling tool can be measured by the thrust measuring platform.

[0115] In addition, the well inclination angle of the drilling tool can be adjusted by the well inclination angle adjustment assembly to ensure that the drive assembly can still drive the drilling tool to rotate around its own axis when the well is inclination.

[0116] At the same time, the angle of the entire drilling tool on the working face can be adjusted by the tool face adjustment assembly to further test the rotation of the drilling tool under different tool face angles.

[0117] The advantages of this invention are:

[0118] (1) It can meet the ground performance requirements of automatic vertical drilling tools of different specifications and sizes.

[0119] (2) The entire test bench is firmly fixed to the ground. The entire structure is stable, sturdy, safe, and reliable, with sufficient strength to support the automatic vertical drilling tool for various static and dynamic tests. No unsafe conditions such as tipping or cracking will occur under any circumstances. The test bench is equipped with ladders for easy installation and maintenance of the second-level platform equipment. The second-level platform is high above the ground and is equipped with guardrails.

[0120] (3) To facilitate the installation of automatic vertical drilling tools, the tools are hoisted from the side to the test bench of the whole machine.

[0121] (4) The clamping tool for fixing the automatic vertical drilling tool is pushed in from one side, clamps firmly, is easy to operate, and is convenient to install.

[0122] (5) It can detect the well inclination and correction process of automatic vertical drilling tools. The well inclination adjustment range is 0 to 5°. The adjustment operation is convenient and the well inclination angle can be read on the display.

[0123] (6) It can detect the change of gravity tool face of automatic vertical drilling tool, the gravity tool face adjustment range is 0 to 360°, and the gravity tool face is read on the display.

[0124] (7) The automatic vertical drilling tool has three thrust blocks that push against the well wall. The internal hydraulic system generates thrust according to the control system. The automatic vertical drilling tool’s ground test system can detect the magnitude of the force of the three thrust blocks and display the force value on the display.

[0125] (8) The automatic vertical drilling tool ground test system is equipped with a drive shaft drive motor with a speed range of 30-400 rpm. The speed adjustment device is convenient for users to operate and has corresponding display instruments to display the speed of the motor and the automatic vertical drilling tool.

[0126] This invention reduces economic losses caused by automatic vertical drilling tools failing to function properly after being deployed to the well, shortens the tool development cycle, improves production and service efficiency, and provides experimental support and technical support for the large-scale engineering application of vertical drilling tools in China.

[0127] The testing system provided by this invention is applied to the testing of automatic vertical drilling tools. The overall structure of the test system is tall, stable, and safe. After preliminary preparations, the automatic vertical drilling tool is hoisted and pushed in from the side, clamped, and the motor start button is activated. The operator can input the well inclination and the position of the gravity tool (within a specified range). The automatic vertical drilling tool tilts to the set posture. A given rotation speed (within a specified range) of the downhole rotary table or top drive is given. The automatic vertical drilling tool, according to calculations by its internal control system, generates a pushing force to autonomously lower the inclination to a vertical state. The display shows the pushing force value, well inclination, and tool face value. A printer can also be connected to print the data. During the test, the input well inclination angle, tool face, and the position reached by the vertical drilling tool on the test system are consistent with the values ​​indicated on the scale and dial. The movement speed of the vertical drilling tool is appropriate during the test operation. Multiple tests have shown stability and reliability, achieving the test objectives and effects.

[0128] It should be noted that all electronic components involved in this invention adopt existing technology, and all the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is existing technology.

[0129] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0130] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0131] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ground testing system for an automatic vertical drilling tool, characterized in that: It includes a suspension clamp assembly, a drive assembly, a force measuring platform, and a well inclination angle adjustment assembly. The suspension clamp assembly is fixedly installed and used to clamp the drilling tool (1). The force measuring platform is installed below the suspension clamp assembly and is connected to the suspension clamp assembly through a suspension component. It is used to measure the thrust of multiple thrust blocks on the drilling tool (1). The well inclination angle adjustment assembly is installed below the measuring thrust platform. The drive assembly is installed on the well inclination angle adjustment assembly and is used to drive the drilling tool (1) to rotate around its own axis. The well inclination angle adjustment assembly is used to adjust the swing of the drive assembly and the drilling tool (1) in the vertical plane to adjust the well inclination angle. It also includes a tool face adjustment assembly, which is installed on the tool face adjustment assembly. The tool face adjustment assembly is used to drive the well inclination angle adjustment assembly and the drilling tool (1) to rotate in the horizontal plane to adjust the drilling tool (1). 1) Tool face angle; also includes a control console (2), the drive assembly, the measuring push force platform, the well inclination angle adjustment assembly and the tool face adjustment assembly are respectively connected to the control console (2); the tool face adjustment assembly includes a tool face drive component, the tool face drive component is used to drive the well inclination angle adjustment assembly and the drilling tool (1) to rotate in the horizontal plane; the well inclination angle adjustment assembly includes a lead screw assembly (3), a disc (4) and a mounting base (5), the disc (4) is horizontally mounted on the tool face drive component. The lead screw assembly (3) is mounted on the disc (4), and the mounting base (5) is fixedly mounted on the lead screw assembly (3); the drive assembly is mounted on the mounting base (5) and can swing vertically; it also includes a main frame assembly (6), the tool face adjustment assembly and the suspension clamp assembly are respectively mounted on the main frame assembly (6); the measuring push force platform includes a mounting plate (8) and multiple force sensors (9), the mounting plate (8) is horizontally arranged below the support disc (7), and has a through-hole at its center. The opening has a plurality of grooves (10) evenly spaced on its sidewall, each corresponding to a plurality of thrust blocks on the drilling tool. A plurality of force sensors (9) are fixedly installed on the mounting plate (8) at locations corresponding to the plurality of grooves (10). A plurality of lifting rings (11) are evenly spaced and fixedly installed on the edge of the mounting plate (8). The suspension component includes a plurality of tension springs (12), the upper ends of which are connected to the edge of the support plate (7) and the lower ends of which are connected to the plurality of lifting rings (11).

2. The automatic vertical drilling tool ground testing system according to claim 1, characterized in that: The suspension clamp assembly includes a support plate (7) and a clamping assembly. The support plate (7) is horizontally fixed on the main frame assembly (6). The clamping assembly is installed on the support plate (7) and is used to clamp the drilling tool (1).

3. The automatic vertical drilling tool ground testing system according to claim 2, characterized in that: The support plate (7) has an annular plate structure. The clamping assembly includes multiple supports (13). The multiple supports (13) are evenly spaced along the circumference of the support plate (7) at the center of the support plate (7), and they can move and be positioned horizontally along the radial direction of the support plate (7).

4. The automatic vertical drilling tool ground testing system according to claim 3, characterized in that: The clamping assembly also includes a cylinder (14) and a plurality of inner supports (15). The cylinder (14) is coaxially and horizontally fixed on the support plate (7), and the interior of the support plate (7) is located inside the cylinder (14). The plurality of supports (13) are located inside the support plate (7), and their upper sides are bent and slidingly fitted to the upper surface of the support plate (7). The plurality of inner supports (15) are fixedly installed on the plurality of supports (13). The cylinder (14) is also evenly spaced with a plurality of locking screws (16). Tightening the plurality of locking screws (16) will push the plurality of inner supports (15) and the plurality of supports (13) to move horizontally.

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