Shaft bottom tool stick-slip monitoring device

Abstract

The invention relates to the technical field of drilling tool stick-slip monitoring devices, in particular to a shaft bottom tool stick-slip monitoring device which comprises a shaft bottom operation drill rod, a driving device and a periscope, the driving device is mounted at the top of the shaft bottom operation drill rod, a camera device is mounted in the driving device, and the periscope is mounted on the outer side of the driving device through an insertion structure. Inserting structures are installed on the two sides of the upper end of the periscope, each inserting structure comprises an installing plate and a guide rod, the installing plate is fixedly installed on one side of the periscope, the guide rod is fixedly installed on the rear side of the installing plate, a guide groove is formed in the driving device, and the guide rod is inserted into the guide groove. The camera shooting device is reasonable and compact in structure and convenient to use, the periscope is installed at the end of the camera shooting device, the dustproof effect is achieved, and the problem that external dust adheres to the surface of the camera shooting device, and consequently the texture of pictures shot by the camera shooting device is reduced is solved.

Description

Technical Field

[0001] This invention relates to the technical field of drilling tool stick-slip monitoring devices, and is a bottom hole tool stick-slip monitoring device. Background Technology

[0002] When drilling oil wells, stick-slip problems often occur. The stick-slip phenomenon is mainly caused by the periodic accumulation and release of energy in the drill string when it overcomes the friction torque at the bottom of the well. When the torque reaches a certain value, the drill string will suddenly release energy rapidly. This phenomenon is called drill string stick-slip.

[0003] When the drill bit is subjected to soil layers and large rocks or other objects in the soil during long-term drilling, it can cause stick-slip and vibration problems on the drill bit and drill rod. Prolonged stick-slip and vibration problems will accelerate the wear of the drill bit and reduce the drilling speed. Therefore, it is necessary to use a testing device to test the stick-slip and vibration of the drill rod and record the results for subsequent drill rod adjustments.

[0004] In current technology, a camera and vibration sensor are installed on the top of the drill rod to test and monitor the drill rod, recording the number and condition of stick-slip and vibration. However, during the drilling process, a large amount of dust is generated and falls onto the lens surface of the camera, which reduces the overall shooting quality of the camera and reduces the accuracy of the operator's recording of the stick-slip problem of the drill rod. Summary of the Invention

[0005] This invention provides a bottom hole tool stick-slip monitoring device that overcomes the shortcomings of the prior art. It can effectively solve the problem that dust covers the camera device, reducing the image quality, when the existing camera device is installed on the top of the drill pipe to monitor stick-slip.

[0006] The technical solution of the present invention is achieved through the following measures: a bottom-hole tool stick-slip monitoring device, including a bottom-hole working drill pipe, a drive device, and a periscope. The drive device is installed on the top of the bottom-hole working drill pipe, and a camera device is installed inside the drive device. The periscope is installed on the outside of the drive device via a plug-in structure. Plug-in structures are installed on both sides of the upper end of the periscope. The plug-in structure includes a mounting plate and a guide rod. The mounting plate is fixedly installed on one side of the periscope, and the guide rod is fixedly installed on the rear side of the mounting plate. A guide groove is opened inside the drive device, and the guide rod is inserted into the guide groove. A guide block is provided inside the guide rod, and a pull rod is fixedly installed at the outer end of the guide block. Two first locking grooves are opened inside the guide block, and a first locking block is provided in each first locking groove. A first spring is provided between the inner side of each first locking groove and the first locking block. A first pull rope is connected to the inner end of each of the two first locking blocks. The first pull rope passes through the pull rod and is connected to a pull handle.

[0007] The following are further optimizations and / or improvements to the above-mentioned technical solution: Preferably, it also includes a coating structure, which includes a first fixed base, a first take-up roller, a second fixed base, and a second take-up roller. The first fixed base is fixedly installed on the outer side of the lower part of the periscope, and the first take-up roller is rotatably connected inside the first fixed base. The second fixed base is slidably installed on the inner side of the lower part of the periscope, and the second take-up roller is rotatably connected inside the second fixed base. A motor is installed at the end of the second take-up roller. A transparent deformable film is installed on the first take-up roller, and the other end of the transparent deformable film is installed on the second take-up roller. The transparent deformable film covers the port of the periscope.

[0008] Preferably, it also includes a tightening mechanism, which includes a limiting plate and a locking plate. The locking plate is fixedly installed on the top of the second fixed seat. The locking plate has several second locking grooves that are spaced vertically inside. The limiting plate is fixedly installed on the inner side of the middle part of the periscope. The limiting plate has a through hole that runs vertically through it. The locking plate is located in the through hole. The limiting plate has a cavity inside. A second locking block is slidably connected inside the cavity. A second spring is connected to the inner end of the second locking block. A second pull rope is connected to the inner end of the second locking block. The second pull rope passes through the limiting plate and is connected to a pull block.

[0009] Preferably, it also includes a cleaning mechanism, which includes a support rod and a cleaning roller. The support rod is fixedly installed at the bottom of the second fixed seat, and a frame is fixedly installed at the bottom of the support rod. The cleaning roller is installed inside the frame and is attached to the surface of the transparent deformable film.

[0010] Preferably, the periscope is equipped with an adjustable lighting device.

[0011] Preferably, rigid support columns are evenly distributed along the circumference of the outer side of the drill pipe used for bottoming out.

[0012] The present invention has a reasonable and compact structure and is easy to use. By installing a periscope at the end of the camera device, it can achieve a dustproof effect, reducing the problem of external dust adhering to the surface of the camera device and reducing the quality of the image captured by the camera device. Attached Figure Description

[0013] Appendix Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention.

[0014] Appendix Figure 2 This is a three-dimensional structural diagram of the internal insertion structure of the present invention.

[0015] Appendix Figure 3 This is a three-dimensional structural diagram of the driving device and the interior of the periscope of the present invention.

[0016] Appendix Figure 4 This is a three-dimensional structural diagram of the periscope of the present invention.

[0017] Appendix Figure 5 For the appendix Figure 2 A magnified structural diagram of point A in the middle.

[0018] Appendix Figure 6 For the appendix Figure 3 A magnified structural diagram at point B in the middle.

[0019] The codes in the attached diagram are as follows: 1 is the drill pipe for bottom hole operation, 21 is the drive device, 22 is the camera device, 23 is the periscope, 24 is the mounting plate, 25 is the guide groove, 26 is the guide rod, 27 is the snap-fit ​​groove, 28 is the guide block, 29 is the first locking groove, 31 is the first locking block, 32 is the first spring, 33 is the pull rod, 41 is the pull handle, 42 is the first pull rope, 51 is the first fixed seat, 52 is the first winding roller, 53 is the second fixed seat, 54 is the second winding roller, 55 is the transparent deformable film, 56 is the motor, 61 is the support rod, 62 is the frame, 63 is the cleaning roller, 71 is the locking plate, 72 is the second locking groove, 73 is the limiting plate, 74 is the cavity, 75 is the second locking block, 76 is the second spring, 77 is the through hole, 81 is the second pull rope, 82 is the pull block, and 9 is the rigid support column. Detailed Implementation

[0020] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0021] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0022] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1-6As shown, the bottom hole tool stick-slip monitoring device includes a bottom hole working drill pipe 1, a drive unit 21, and a periscope 23. The drive unit 21 is installed on the top of the bottom hole working drill pipe 1, and a camera device 22 is installed inside the drive unit 21. The periscope 23 is installed on the outside of the drive unit 21 via a plug-in structure. Plug-in structures are installed on both sides of the upper end of the periscope 23. The plug-in structure includes a mounting plate 24 and a guide rod 26. The mounting plate 24 is fixedly installed on one side of the periscope 23, and the guide rod 26 is fixedly installed on the rear side of the mounting plate 24. The drive device 21 has a guide groove 25 inside, and a guide rod 26 is inserted into the guide groove 25. The guide rod 26 has a guide block 28 inside, and a pull rod 33 is fixedly installed on the outer end of the guide block 28. The guide block 28 has two first locking grooves 29 inside, and a first locking block 31 is provided in each first locking groove 29. A first spring 32 is provided between the inner side of each first locking groove 29 and the first locking block 31. The inner ends of the two first locking blocks 31 are connected to a first pull rope 42. The first pull rope 42 passes through the pull rod 33 and is connected to a pull handle 41.

[0023] During operation, when the drill pipe 1 is excavating at the bottom of the well, a periscope 23 is installed at the end of the drive device 21, and then the guide rod 26 is inserted into the guide groove 25 inside the drive device 21. During the insertion process, because the end of the first locking block 31 is semi-arc, the first locking block 31 is squeezed into the first locking groove 29 by the end of the guide rod 26, and then the first spring 32 is squeezed to generate elastic force. When the first locking groove 29 and the snap-fit ​​groove 27 are aligned, the first spring 32 generates elastic force to push the first locking block 31 into the snap-fit ​​groove 27. Then the periscope 23 is fixed at the end of the drive device 21, so that the camera device 22 can record and monitor the working status of the end of the drill pipe 1 at the bottom of the well through the periscope 23. The periscope 23 installed at the end of the camera device 22 has a dustproof effect, reducing the problem of external dust adhering to the surface of the camera device 22 and reducing the quality of the image captured by the camera device 22. When the periscope 23 needs to be disassembled, pulling the handle 41 causes the first pull rope 42 to slide outward, pulling the first locking block 31 into the first locking groove 29. Then, pulling the guide rod 26 allows it to slide out from the guide groove 25, facilitating the removal of the periscope 23 for maintenance and replacement of the camera device 22. The plug-in structure allows for quick and easy assembly and disassembly of the periscope 23.

[0024] The aforementioned wellbore tool stick-slip monitoring device can be further optimized and / or improved according to actual needs: Example 2: As shown in the attached document Figure 4As shown, it also includes a coating structure, which includes a first fixed base 51, a first take-up roller 52, a second fixed base 53, and a second take-up roller 54. The first fixed base 51 is fixedly installed on the lower outer side of the periscope 23, and the first take-up roller 52 is rotatably connected inside the first fixed base 51. The second fixed base 53 is slidably installed on the lower inner side of the periscope 23, and the second take-up roller 54 is rotatably connected inside the second fixed base 53. A motor 56 is installed at the end of the second take-up roller 54. A transparent deformable film 55 is installed on the first take-up roller 52, and the other end of the transparent deformable film 55 is installed on the second take-up roller 54. The transparent deformable film 55 covers the port of the periscope 23.

[0025] When the periscope 23 is in operation, the motor 56 drives the second take-up roller 54 to rotate, which pulls the transparent deformable film 55 to unfold and cover the port of the periscope 23. Then, the first take-up roller 52 rotates to cooperate with the second take-up roller 54 to wind up the film, so that the port of the periscope 23 is sealed and covered by the transparent deformable film 55, thus achieving a dustproof effect. The transparent deformable film 55 also has other special functions, such as anti-reflection, anti-ultraviolet, and wear resistance, to meet the needs of different application scenarios.

[0026] Example 3: As shown in the attached document Figure 4 , 6 As shown, it also includes a tightening mechanism, which includes a limiting plate 73 and a locking plate 71. The locking plate 71 is fixedly installed on the top of the second fixed base 53. The locking plate 71 has several second locking grooves 72 that are spaced vertically inside. The limiting plate 73 is fixedly installed on the inner side of the middle part of the periscope 23. The limiting plate 73 has a through hole 77 that runs vertically through it. The locking plate 71 is located in the through hole 77. The limiting plate 73 has a cavity 74 inside. The cavity 74 is slidably connected to a second locking block 75. The inner end of the second locking block 75 is connected to a second spring 7. The inner end of the second locking block 75 is connected to a second pull rope 81. The second pull rope 81 passes through the limiting plate 73 and is connected to a pull block 82.

[0027] When it is necessary to adjust the coverage tightness of the transparent deformable film 55, the second fixing seat 53 is pushed upward to slide, causing the second fixing seat 53 to drive the locking plate 71 into the through hole 77. Then, during the sliding, the second locking block 75 is squeezed, causing the second locking block 75 to retract into the cavity 74. Then, the second spring 76 is squeezed to generate elastic force. When the second locking groove 72 is aligned with the cavity 74, the second spring 76 generates elastic force to push the second locking block 75 into the second locking groove 72 for locking and fixing, thereby adjusting the second fixing seat 53. The height of the second fixing seat 53 is adjusted by setting several second locking grooves 72 to adjust the tightness and sealing effect of the transparent deformable film 55 covering the periscope 23 port. When no adjustment is needed, the second pulling rope 81 is slid upward by pulling the pull block 82, so that the second pulling rope 81 pulls the second locking block 75 to retract into the cavity 74. Then the locking plate 71 slides out from the through hole 77, making it easy for the staff to lift or remove the transparent deformable film 55.

[0028] Example 4: As shown in the appendix Figure 4 As shown, it also includes a cleaning mechanism, which includes a support rod 61 and a cleaning roller 63. The support rod 61 is fixedly installed at the bottom of the second fixed seat 53, and a frame 62 is fixedly installed at the bottom of the support rod 61. The cleaning roller 63 is installed inside the frame 62 and is attached to the surface of the transparent deformable film 55.

[0029] When the transparent deformable film 55 is moved by the second take-up roller 54, it adheres to the surface of the cleaning roller 63. The cleaning roller 63 cleans the dust and impurities adhering to the surface of the transparent deformable film 55, making it easier for subsequent recycling.

[0030] Example 5: As shown in the attached document Figure 3 As shown, the periscope 23 is equipped with an adjustable lighting device. The lighting device, installed on the inner wall of the periscope 23, adjusts the brightness inside the periscope 23, thereby improving the image quality captured by the camera device 22 during monitoring.

[0031] Example 6: As shown in the appendix Figure 1-3 As shown, rigid support columns 9 are evenly distributed along the circumference of the outer side of the bottom hole working drill pipe 1. The installation of rigid support columns 9 improves the overall support and stability of the bottom hole working drill pipe 1.

[0032] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A well bottom tool stick-slip monitoring device, characterized in that... The device includes a bottom-hole drilling pipe, a drive unit, and a periscope. The drive unit is mounted on the top of the bottom-hole drilling pipe, and a camera is installed inside the drive unit. The periscope is mounted on the outside of the drive unit via a plug-in structure. Plug-in structures are installed on both sides of the upper end of the periscope. The plug-in structure includes a mounting plate and a guide rod. The mounting plate is fixedly installed on one side of the periscope, and the guide rod is fixedly installed on the rear side of the mounting plate. The drive unit has a guide groove inside, and the guide rod is inserted into the guide groove. A guide block is provided inside the guide rod, and a pull rod is fixedly installed on the outer end of the guide block. Two first locking grooves are opened inside the guide block, and a first locking block is provided in each first locking groove. A first spring is provided between the inner side of each first locking groove and the first locking block. A first pull rope is connected to the inner end of each of the two first locking blocks. The first pull rope passes through the pull rod and is connected to a pull handle.

2. The well bottom tool stick-slip monitoring device according to claim 1, characterized in that... It also includes a coating structure, which includes a first fixed base, a first take-up roller, a second fixed base, and a second take-up roller. The first fixed base is fixedly installed on the outer side of the lower part of the periscope, and the first take-up roller is rotatably connected inside the first fixed base. The second fixed base is slidably installed on the inner side of the lower part of the periscope, and the second take-up roller is rotatably connected inside the second fixed base. A motor is installed at the end of the second take-up roller. A transparent deformable film is installed on the first take-up roller, and the other end of the transparent deformable film is installed on the second take-up roller. The transparent deformable film covers the port of the periscope.

3. The well bottom tool stick-slip monitoring device according to claim 2, characterized in that... It also includes a tightening mechanism, which includes a limiting plate and a locking plate. The locking plate is fixedly installed on the top of the second fixed base. The locking plate has several second locking grooves that are spaced vertically inside. The limiting plate is fixedly installed on the inner side of the middle part of the periscope. The limiting plate has a through hole that runs vertically through it. The locking plate is located in the through hole. The limiting plate has a cavity inside. A second locking block is slidably connected inside the cavity. A second spring is connected to the inner end of the second locking block. A second pull rope is connected to the inner end of the second locking block. The second pull rope passes through the limiting plate and is connected to a pull block.

4. The well bottom tool stick-slip monitoring device according to claim 2 or 3, characterized in that... It also includes a cleaning mechanism, which includes a support rod and a cleaning roller. The support rod is fixedly installed at the bottom of the second fixed seat, and a frame is fixedly installed at the bottom of the support rod. The cleaning roller is installed inside the frame and is attached to the surface of the transparent deformable film.

5. The well bottom tool stick-slip monitoring device according to claim 1, 2, or 3, characterized in that... The periscope is equipped with an adjustable lighting device.

6. The well bottom tool stick-slip monitoring device according to claim 4, characterized in that... The periscope is equipped with an adjustable lighting device.

7. The well bottom tool stick-slip monitoring device according to claim 1, 2, 3, or 6, characterized in that... Rigid support columns are evenly distributed along the circumference of the outer side of the drill pipe used for bottoming out.

8. The well bottom tool stick-slip monitoring device according to claim 4, characterized in that... Rigid support columns are evenly distributed along the circumference of the outer side of the drill pipe used for bottoming out.

9. The well bottom tool stick-slip monitoring device according to claim 5, characterized in that... Rigid support columns are evenly distributed along the circumference of the outer side of the drill pipe used for bottoming out.

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