Centralizing device for geological and geophysical prospecting logging instrument

Abstract

A righting device for a geological geophysical prospecting logging instrument comprises a sleeve, a limiting mechanism, a fixing mechanism and a logging instrument body, the limiting mechanism is arranged on the sleeve, the logging instrument body makes contact with the limiting mechanism, and the fixing mechanism is arranged on the outer side of the sleeve; the limiting mechanism comprises sliding frames, racks and clamping plates, the sliding frames are fixedly arranged at the top end or the bottom end of the sleeve, the racks are inserted into the sliding frames and horizontally slide along the sliding frames, the outer walls of the clamping plates are fixedly connected with the racks, and the inner walls of the clamping plates make contact with the logging instrument body. According to the centralizing device for the geological and geophysical prospecting logging instrument, the sliding frame, the rack and the clamping plate are arranged, the clamping plate is used in cooperation with the sliding frame and the rack, logging instrument bodies of different sizes are stably clamped, and the applicability of the centralizing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geophysical well logging instruments, and more specifically, particularly relates to a straightening device for a geological and geophysical well logging instrument. Background Art

[0002] The geophysical logging instrument can continuously scan the well wall and can also perform horizontal scanning at any level, and provide technical information such as the vertical section, horizontal section, effective section, and deviation distance of the wellbore. The logging results can be directly displayed on the computer screen or given by a plotter printer, which is flexible and convenient to use. The use of logging instruments can prevent wellbore deviation, reduce the construction period, speed up the construction progress, ensure the quality of the project, and have obvious indirect economic benefits and very significant social benefits. There are many types of logging instruments on the market, including well drilling logging instruments, ultrasonic logging instruments, nuclear logging instruments, and digital coring logging instruments.

[0003] The patent with authorization announcement number CN215565786U discloses a straightening device for a geological logging instrument, which includes a placement frame, the left and right side surfaces of the inner wall of the placement frame are respectively fixedly connected to the sides of two placement frames that are away from each other, the upper surface of the placement frame is fixedly connected to the lower surfaces of two support plates, and the upper surfaces of the two support plates are provided with positioning rods. This patent can ensure that the geological logging instrument will not be offset due to the vibration of the drilling hole during use, prevent the well drilled by the geological logging instrument from tilting, and ensure the accuracy of the geological data survey by the geological logging instrument. However, the distance between the limit mechanism and the positioning rod in this patent is fixed, and cannot be adjusted according to the size of different logging instruments, and has poor applicability. Utility Model Content

[0004] The utility model aims to provide a stabilizing device for a geological and geophysical well logging instrument in order to overcome the problem that the well logging instrument cannot be adjusted according to different sizes and has poor applicability.

[0005] A stabilizing device for a geological and geophysical logging instrument comprises a casing, a limiting mechanism, a fixing mechanism and a logging instrument body, wherein the limiting mechanism is arranged on the casing, the logging instrument body is in contact with the limiting mechanism, and the fixing mechanism is arranged outside the casing;

[0006] The limiting mechanism includes a sliding frame, a rack and a clamping plate. Several sliding frames are fixedly arranged at the top or bottom end of the casing. The rack is inserted into the sliding frame and slides horizontally along the sliding frame. The outer wall of the clamping plate is fixedly connected to the rack, and the inner wall of the clamping plate is in contact with the main body of the logging instrument.

[0007] Furthermore, the limiting mechanism also includes a gear, and connecting plates are fixedly arranged on both sides of one end of the sliding frame close to the inner wall of the sleeve. The gear is inserted between the two connecting plates and is rotatably connected to the connecting plates, and the gear and the rack are meshed with each other.

[0008] Furthermore, one end of the gear side wall passes through the connecting plate and is fixedly provided with a motor for rotating the gear.

[0009] Furthermore, a baffle is fixedly provided at one end of the rack away from the clamping plate to prevent the rack from slipping.

[0010] Furthermore, limit bars are fixedly arranged on both sides of the rack, a first limit groove is opened at the position where the sliding frame contacts the limit bar, and the limit bar is inserted into the first limit groove and slides horizontally along the first limit groove.

[0011] Furthermore, an anti-skid pad is attached to the inner wall of the clamping plate to prevent the main body of the well logging instrument from slipping, and the inner wall of the anti-skid pad is in contact with the main body of the well logging instrument.

[0012] Furthermore, the fixing mechanism includes a support tube, a connecting block, a fixing plate and a supporting assembly. Several connecting blocks are fixedly arranged at equal distances on the inner wall of the support tube. One end of the connecting block away from the inner wall of the support tube is fixedly connected to the sleeve. A first connecting ear plate is fixedly arranged on the outer wall of the support tube. The fixing plate is hinged to the first connecting ear plate, and the supporting assembly is arranged between the support tube and the fixing plate.

[0013] Furthermore, a fixing nail for fixing the device is inserted into one end of the fixing plate away from the first connecting ear plate.

[0014] Furthermore, the support assembly includes a second connecting ear plate, a support rod and a third connecting ear plate, the second connecting ear plate is fixedly arranged on the top surface of the fixed plate, the third connecting ear plate is slidably connected to the outer wall of the support tube, one end of the support rod is hinged to the second connecting ear plate, and the other end of the support rod is hinged to the third connecting ear plate.

[0015] Furthermore, a slider is fixedly provided on one end of the third connecting ear plate away from the support rod, a second limiting groove is opened on the outer wall of the support tube, and the slider is inserted into the second limiting groove and slides vertically along the second limiting groove.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] ① The stabilizing device for the geophysical logging instrument provided by the utility model is provided with a sliding frame, a rack and a clamping plate. The clamping plate, when used in cooperation with the sliding frame and the rack, can clamp and stabilize the main body of the logging instrument of different sizes, thereby improving the applicability of the device.

[0018] ② The stabilizing device for the geological geophysical logging instrument provided by the utility model further supports the fixed plate and improves the stability of the device by setting a support rod, one end of the support rod is hinged to the second connecting ear plate, and the other end of the support rod is hinged to the third connecting ear plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of the righting device for the geological geophysical well logging instrument.

[0021] Figure 2 It is a specific structural schematic diagram of the limiting mechanism and the fixing mechanism in the utility model.

[0022] Figure 3 It is an enlarged view of point A in the present utility model.

[0023] In the figure: 1. casing; 2. logging instrument body; 3. sliding frame; 4. rack; 5. clamping plate; 6. gear; 7. connecting plate; 8. motor; 9. baffle; 10. limit strip; 11. first limit groove; 12. anti-skid pad; 13. support tube; 14. connecting block; 15. fixing plate; 16. first connecting ear plate; 17. fixing nail; 18. second connecting ear plate; 19. support rod; 20. third connecting ear plate; 21. slider; 22. second limit groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 As shown, a straightening device for a geological and geophysical logging instrument comprises a casing 1, a limiting mechanism, a fixing mechanism and a logging instrument body 2, wherein the limiting mechanism is arranged on the casing 1, the logging instrument body 2 is in contact with the limiting mechanism, and the fixing mechanism is arranged on the outside of the casing 1. Specifically, the limiting mechanism is arranged on the casing 1, the limiting mechanism is in contact with the logging instrument body 2, and the fixing mechanism is arranged on the outside of the casing 1.

[0026] like Figure 2 , Figure 3As shown, the limiting mechanism includes a sliding frame 3, a rack 4 and a clamp 5. Several sliding frames 3 are fixedly arranged at the top or bottom end of the casing 1, the rack 4 is inserted in the sliding frame 3 and slides horizontally along the sliding frame 3, the outer wall of the clamp 5 is fixedly connected to the rack 4, and the inner wall of the clamp 5 is in contact with the main body 2 of the logging instrument. Specifically, three sliding frames 3 are welded at the top and bottom ends of the casing 1, the rack 4 is inserted in the sliding frame 3 and slides horizontally along the sliding frame 3, the upper part of the outer wall of the clamp 5 is welded to the rack 4 inserted in the sliding frame 3 at the top end of the casing 1, the lower part of the outer wall of the clamp 5 is welded to the rack 4 inserted in the sliding frame 3 at the bottom end of the casing 1, and the inner wall of the clamp 5 is in contact with the main body 2 of the logging instrument.

[0027] In the present invention, by providing the slide frame 3, the rack 4 and the clamping plate 5, the clamping plate 5, in cooperation with the slide frame 3 and the rack 4, can clamp and stabilize the logging instrument body 2 of different sizes, thereby improving the applicability of the device.

[0028] The limiting mechanism also includes a gear 6. Connecting plates 7 are fixedly arranged on both sides of one end of the sliding frame 3 close to the inner wall of the sleeve 1. The gear 6 is inserted between the two connecting plates 7 and is rotatably connected to the connecting plates 7. The gear 6 and the rack 4 are meshed with each other. Specifically, connecting plates 7 are welded on both sides of one end of the sliding frame 3 close to the inner wall of the sleeve 1. The gear 6 is inserted between the two connecting plates 7 and is rotatably connected to the connecting plates 7.

[0029] One end of the side wall of the gear 6 passes through the connecting plate 7 and is fixedly provided with a motor 8 for rotating the gear 6. Preferably, the motor 8 has a self-locking function, which is specifically manifested in that the motor 8 is fixed to the side wall of the connecting plate 7 through a motor seat, and one end of the side wall of the gear 6 passes through the connecting plate 7 and is connected and fixed to the output shaft of the motor 8.

[0030] A baffle 9 is fixedly provided at one end of the rack 4 away from the clamping plate 5 to prevent the rack 4 from slipping off. Specifically, the baffle 9 is welded at one end of the rack 4 away from the clamping plate 5 to prevent the rack 4 from slipping off.

[0031] Limiting bars 10 are fixedly arranged on both sides of the rack 4, and a first limiting groove 11 is opened at the position where the sliding frame 3 contacts the limiting bar 10. The limiting bar 10 is inserted into the first limiting groove 11 and slides horizontally along the first limiting groove 11. Specifically, the limiting bars 10 are welded on both sides of the rack 4, and a first limiting groove 11 is opened at the position where the sliding frame 3 contacts the limiting bar 10. The limiting bar 10 is inserted into the first limiting groove 11 and slides horizontally along the first limiting groove 11.

[0032] The inner wall of the splint 5 is affixed with an anti-skid pad 12 to prevent the logging tool body 2 from slipping, and the inner wall of the anti-skid pad 12 is in contact with the logging tool body 2. Specifically, the inner wall of the splint 5 is affixed with an anti-skid pad 12 to prevent the logging tool body 2 from slipping, and the inner wall of the anti-skid pad 12 is in contact with the outer wall of the logging tool body 2.

[0033] The fixing mechanism includes a support tube 13, a connecting block 14, a fixing plate 15 and a supporting assembly. Several connecting blocks 14 are fixedly arranged on the inner wall of the support tube 13 at equal distances. One end of the connecting block 14 away from the inner wall of the support tube 13 is fixedly connected to the sleeve 1. A first connecting ear plate 16 is fixedly arranged on the outer wall of the support tube 13. The fixing plate 15 is hinged to the first connecting ear plate 16. The supporting assembly is arranged between the support tube 13 and the fixing plate 15. Specifically, three connecting blocks 14 are welded on the inner wall of the support tube 13 at equal distances. One end of the connecting block 14 away from the inner wall of the support tube 13 is welded to the sleeve 1. A first connecting ear plate 16 is welded on the outer wall of the support tube 13. A pin is inserted on the first connecting ear plate 16. The fixing plate 15 is hinged to the first connecting ear plate 16 through the pin. The supporting assembly is arranged between the support tube 13 and the fixing plate 15.

[0034] A fixing pin 17 for fixing the device is inserted at one end of the fixing plate 15 away from the first connecting ear plate 16. Specifically, a plug hole is opened at one end of the fixing plate 15 away from the first connecting ear plate 16, and the fixing pin 17 is inserted into the first connecting ear plate 16 through the plug hole for fixing the device.

[0035] The support assembly includes a second connecting ear plate 18, a support rod 19 and a third connecting ear plate 20. The second connecting ear plate 18 is fixedly arranged on the top surface of the fixed plate 15, and the third connecting ear plate 20 is slidably connected to the outer wall of the support tube 13. One end of the support rod 19 is hinged to the second connecting ear plate 18, and the other end of the support rod 19 is hinged to the third connecting ear plate 20. Specifically, the second connecting ear plate 18 is welded to the top surface of the fixed plate 15, a pin is inserted in the second connecting ear plate 18, one end of the support rod 19 is hinged to the second connecting ear plate 18 through the pin, the third connecting ear plate 20 is slidably connected to the outer wall of the support tube 13, a pin is inserted in the third connecting ear plate 20, and the other end of the support rod 19 is hinged to the third connecting ear plate 20 through the pin.

[0036] In the present invention, a support rod 19 is provided, one end of the support rod 19 is hinged to the second connecting ear plate 18, and the other end of the support rod 19 is hinged to the third connecting ear plate 20, so as to further support the fixing plate 15 and improve the stability of the device.

[0037] A slider 21 is fixedly provided at one end of the third connecting ear plate 20 away from the support rod 19, a second limiting groove 22 is opened on the outer wall of the support tube 13, the slider 21 is inserted in the second limiting groove 22 and slides vertically along the second limiting groove 22. Specifically, the slider 21 is welded at one end of the third connecting ear plate 20 away from the support rod 19, the second limiting groove 22 is opened on the outer wall of the support tube 13, the slider 21 is inserted in the second limiting groove 22 and slides vertically along the second limiting groove 22.

[0038] The working principle of the geophysical well logging instrument righting device in this embodiment is:

[0039] The staff moves the device to the specified position, one end of the fixed plate 15 rotates axially along the first connecting ear plate 16, one end of the support rod 19 rotates axially along the second connecting ear plate 18, and the other end of the support rod 19 rotates axially along the third connecting ear plate 20. At the same time, the slider 21 slides vertically along the second limit groove 22 until the other end of the fixed plate 15 contacts the surface of the specified position, and the fixing nail 17 is inserted to fix the device; the logging instrument body 2 is inserted into the sleeve, the motor 8 rotates the output shaft, the gear 6 rotates with the output shaft, the rack 4 rotates with the gear 6 and slides horizontally along the slide frame 3, and the splint 5 moves horizontally with the rack 4 until the anti-slip pad 12 contacts the outer wall of the logging instrument body 2 to complete the stable straightening.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A righting device for a geological and geophysical well logging instrument, characterized in that: It comprises a casing (1), a limiting mechanism, a fixing mechanism and a logging instrument body (2), wherein the limiting mechanism is arranged on the casing (1), the logging instrument body (2) is in contact with the limiting mechanism, and the fixing mechanism is arranged outside the casing (1); The limiting mechanism comprises a sliding frame (3), a rack (4) and a clamping plate (5); a plurality of the sliding frames (3) are fixedly arranged at the top end or the bottom end of the casing (1); the rack (4) is inserted into the sliding frame (3) and slides horizontally along the sliding frame (3); the outer wall of the clamping plate (5) is fixedly connected to the rack (4); and the inner wall of the clamping plate (5) is in contact with the main body (2) of the well logging instrument.

2. A geophysical well logging instrument righting device according to claim 1, characterized in that: The limiting mechanism also includes a gear (6); connecting plates (7) are fixedly arranged on both sides of one end of the sliding frame (3) close to the inner wall of the sleeve (1); the gear (6) is inserted between the two connecting plates (7) and is rotatably connected to the connecting plates (7); the gear (6) and the rack (4) are meshed with each other.

3. A geophysical well logging instrument righting device according to claim 2, characterized in that: One end of the side wall of the gear (6) passes through the connecting plate (7) and is fixedly provided with a motor (8) for rotating the gear (6).

4. The device for stabilizing a geophysical well logging tool according to claim 1, characterized in that: A baffle (9) is fixedly provided at one end of the rack (4) away from the clamping plate (5) to prevent the rack (4) from slipping off.

5. A righting device for a geophysical logging tool according to claim 4, characterized in that: Limiting strips (10) are fixedly arranged on both sides of the rack (4); a first limiting groove (11) is provided at a position where the sliding frame (3) contacts the limiting strip (10); the limiting strip (10) is inserted into the first limiting groove (11) and slides horizontally along the first limiting groove (11).

6. The righting device for a geophysical logging tool according to claim 1, characterized in that: The inner wall of the clamping plate (5) is provided with an anti-skid pad (12) for preventing the logging instrument body (2) from slipping, and the inner wall of the anti-skid pad (12) is in contact with the logging instrument body (2).

7. The righting device for a geophysical logging tool according to claim 1, characterized in that: The fixing mechanism comprises a support tube (13), a connecting block (14), a fixing plate (15) and a support assembly, wherein a plurality of the connecting blocks (14) are fixedly arranged at equal distances on the inner wall of the support tube (13), one end of the connecting block (14) away from the inner wall of the support tube (13) is fixedly connected to the sleeve (1), a first connecting ear plate (16) is fixedly arranged on the outer wall of the support tube (13), the fixing plate (15) is hingedly connected to the first connecting ear plate (16), and the support assembly is arranged between the support tube (13) and the fixing plate (15).

8. The device for stabilizing a geophysical well logging tool according to claim 7, characterized in that: A fixing nail (17) for fixing a device is inserted into one end of the fixing plate (15) away from the first connecting ear plate (16).

9. The righting device for a geophysical well logging tool according to claim 7, characterized in that: The support assembly comprises a second connecting ear plate (18), a support rod (19) and a third connecting ear plate (20), wherein the second connecting ear plate (18) is fixedly arranged on the top surface of the fixed plate (15), the third connecting ear plate (20) is slidably connected to the outer wall of the support tube (13), one end of the support rod (19) is hinged to the second connecting ear plate (18), and the other end of the support rod (19) is hinged to the third connecting ear plate (20).

10. The device for stabilizing a geophysical well logging tool according to claim 9, characterized in that: A sliding block (21) is fixedly provided at one end of the third connecting ear plate (20) away from the supporting rod (19), a second limiting groove (22) is provided on the outer wall of the supporting tube (13), and the sliding block (21) is inserted into the second limiting groove (22) and slides vertically along the second limiting groove (22).

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