Corrosion coupon device for underground corrosion monitoring

Abstract

The utility model relates to the technical field of underground corrosion monitoring, in particular to a corrosion coupon device for underground corrosion monitoring, which comprises a coupon frame and a coupon body, and half lugs are fixedly arranged on the upper surface and the lower surface of the coupon body. When the corrosion coupon is installed, the movable plate and the sliding strip are pulled leftwards, the first spring is lengthened, the half lug at the top of the coupon body is placed between the hanging rod and the fixed seat, the movable plate is loosened, the first spring is shortened to drive the sliding strip and the hanging rod to move rightwards, the hanging rod penetrates through the lug hole, and the coupon body can be hung in the coupon frame. The connecting plate is pulled forwards to lengthen the second spring, the sliding plate is moved up and down to adjust the height of the support, the inserting rod penetrates through the through hole and the lug hole of the lower half lug and then is inserted into the blind hole, the connecting plate is loosened, the second spring is shortened to drive the pin rod to be inserted into the pin hole, the inserting rod can be locked, and the lower portion of the hanging piece body can be limited. And the phenomenon that the accuracy of corrosion monitoring data is influenced by displacement or falling of the coupon body under the impact of underground fluid is prevented.

Description

Technical Field

[0001] This utility model relates to the field of downhole corrosion monitoring technology, specifically to a corrosion-coated device for downhole corrosion monitoring. Background Technology

[0002] In oil and gas well extraction operations, the underground environment is complex and contains various corrosive media, such as hydrogen sulfide, carbon dioxide, and water. These media can cause serious corrosion to underground equipment and pipelines, affecting the service life of the equipment and safe production. Therefore, accurate monitoring of underground corrosion is crucial for taking timely anti-corrosion measures and ensuring the safety and stability of underground operations.

[0003] Currently, the commonly used method for downhole corrosion monitoring is mainly through the installation of corrosion clips. However, existing corrosion clip devices have some shortcomings. For example, the installation and removal of the clips are inconvenient, resulting in a lot of time and manpower being spent on replacing and maintaining the clips. The clips are not firmly fixed downhole and are easily displaced or detached due to the impact of downhole fluids, affecting the accuracy of corrosion monitoring data. Therefore, a corrosion clip device for downhole corrosion monitoring is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a corrosion-resistant plate device for downhole corrosion monitoring, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant hanging device for downhole corrosion monitoring, comprising a hanging frame and a hanging body. Half-ears are fixedly provided on both the upper and lower surfaces of the hanging body, and ear holes are formed on the outer side walls of the half-ears. A connecting ring is fixedly provided in the middle of the upper surface of the hanging frame. A fixing seat is fixedly connected to the right side of the inner top wall of the hanging frame. A sliding groove is formed on the upper part of the left side wall of the fixing seat. A sliding strip is slidably connected to the inner side wall of the sliding groove. A movable plate is fixedly connected to the left end of the sliding strip. A hanging rod is fixedly connected to the lower part of the right side wall of the movable plate. The right side wall of the sliding strip and the inner side wall of the sliding groove are symmetrically fixedly connected. There are two springs. A sliding plate is slidably connected to the lower surface of the hanging frame. A bracket is fixedly connected to the top of the sliding plate. A blind hole is opened on the right side of the inner wall of the bracket. A through hole is opened on the left side wall of the bracket. A rod is inserted into the inner wall of the through hole. A pin hole is opened on the outer wall of the rod. Two sleeves are symmetrically fixedly connected to the left side of the front surface of the bracket. A sleeve rod is slidably connected to the inner wall of the sleeve. A connecting plate is fixedly connected to the front end of the sleeve rod. A pin is slidably connected to the left side of the front surface of the bracket. The front end of the pin is fixedly connected to the middle of the rear surface of the connecting plate. A spring is fixedly connected between the rear surface of the sleeve rod and the inner wall of the sleeve.

[0006] As a further preferred embodiment of this technical solution: a blind groove is provided on the front surface of the connecting plate, and a handle is fixedly connected to the inner sidewall of the blind groove.

[0007] As a further preferred embodiment of this technical solution: a pull ring is fixedly connected to the left side wall of the insertion rod.

[0008] As a further preferred embodiment of this technical solution: a friction plate is provided on the right side of the front surface of the slide bar, a push rod is threadedly connected to the front surface of the fixed seat, the rear end of the push rod extends into the slide groove, and a circular plate is fixedly connected to the front end of the push rod.

[0009] As a further preferred embodiment of this technical solution: the front surface of the circular plate is provided with an internal hexagonal hole.

[0010] As a further preferred embodiment of this technical solution: a handle is fixedly connected to the left side wall of the movable plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, when installing the corrosion-resistant hanging plate, pulling the movable plate and slide bar to the left stretches spring one, placing the top half-ear of the hanging plate body between the hanging rod and the fixed seat. Releasing the movable plate causes spring one to shorten, moving the slide bar and hanging rod to the right, allowing the hanging rod to pass through the ear hole. The hanging plate body can then be hung inside the hanging plate frame. Pulling the connecting plate forward stretches spring two, and moving the sliding plate up and down adjusts the height of the bracket. After inserting the insertion rod through the through hole and the ear hole of the lower half-ear, it is inserted into the blind hole. Releasing the connecting plate causes spring two to shorten, causing the pin to insert into the pin hole. Locking the insert rod limits the lower part of the bracket body, preventing it from shifting or falling off under the impact of downhole fluids, which would affect the accuracy of corrosion monitoring data. The bracket frame is placed in the designated position downhole for corrosion testing via an external telescopic rod or external chain. To remove the bracket body, simply pull the connecting plate forward again and pull the insert rod to the left, then pull the movable plate to the left to move the rod away from the ear hole. This allows for quick removal of the bracket body, making installation and disassembly convenient, saving time, and facilitating the use of corrosion-resistant brackets. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the hanging plate body in this utility model;

[0015] Figure 3 This is a cross-sectional view of the fixing base in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the fixed base and the sliding groove in this utility model;

[0017] Figure 5 This is a schematic diagram of the slider and friction plate in this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the bracket and the insertion rod in this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the blind hole and the through hole in this utility model;

[0020] Figure 8 This is a schematic diagram of the structure of the insertion rod and pin hole in this utility model;

[0021] Figure 9 This is a cross-sectional view of the bracket in this utility model.

[0022] In the picture:

[0023] 1. Hanging plate frame; 2. Hanging plate body; 3. Connecting ring; 4. Fixing base; 5. Slide groove; 6. Slide bar; 7. Movable plate; 8. Hanging rod; 9. Spring 1; 10. Slide plate; 11. Bracket; 12. Blind hole; 13. Through hole; 14. Pin hole; 15. Sleeve; 16. Sleeve rod; 17. Connecting plate; 18. Pin rod; 19. Spring 2; 20. Blind groove; 21. Handle; 22. Pull ring; 23. Friction plate; 24. Top rod; 25. Round plate; 26. Socket hole; 27. Handle; 28. Half ear; 29. ​​Ear hole; 30. Insert rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "equipment" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Please see Figures 1-9 This utility model provides a technical solution: a corrosion-resistant hanging device for downhole corrosion monitoring, comprising a hanging frame 1 and a hanging body 2. Half-ears 28 are fixedly provided on both the upper and lower surfaces of the hanging body 2. Ear holes 29 are provided on the outer side walls of the half-ears 28. A connecting ring 3 is fixedly provided in the middle of the upper surface of the hanging frame 1. A fixing seat 4 is fixedly connected to the right side of the inner top wall of the hanging frame 1. A sliding groove 5 is provided on the upper part of the left side wall of the fixing seat 4. A sliding strip 6 is slidably connected to the inner side wall of the sliding groove 5. A movable plate 7 is fixedly connected to the left end of the sliding strip 6. A hanging rod 8 is fixedly connected to the lower part of the right side wall of the movable plate 7. Two springs 9 are symmetrically fixedly connected between the right side wall of the sliding strip 6 and the inner side wall of the sliding groove 5. A sliding plate 10 is slidably connected to the lower surface of the hanging frame 1. A bracket 11 is fixedly connected to the top of the sliding plate 10. A blind hole 12 is provided on the right side of the inner side wall of the bracket 11. A through hole 13 is provided on the left side wall of the bracket 11. The inner wall of the bracket 11 is fitted with a rod 30, and the outer wall of the rod 30 is provided with a pin hole 14. Two sleeves 15 are symmetrically fixedly connected to the left side of the front surface of the bracket 11. A sleeve rod 16 is slidably connected to the inner wall of the sleeve 15. A connecting plate 17 is fixedly connected to the front end of the sleeve rod 16. A pin 18 is slidably connected to the left side of the front surface of the bracket 11. The front end of the pin 18 is fixedly connected to the middle of the rear surface of the connecting plate 17. A spring 19 is fixedly connected between the rear surface of the sleeve rod 16 and the inner wall of the sleeve 15. The hanging plate body 2 is a rectangular plate structure, made of the same or similar material as the downhole equipment or pipeline, so as to accurately simulate the corrosion of downhole equipment. The surface of the hanging plate body 2 is finely polished to remove the oxide layer and impurities on the surface, ensuring the uniformity and smoothness of the hanging plate surface. The hanging plate frame 1 is made of high-strength metal material, with sufficient strength and rigidity to withstand the impact and pressure of downhole fluid.

[0027] Under the above settings, when installing the corrosion hanger, pull the movable plate 7 and the slide bar 6 to the left, and the spring 9 will be stretched. Place the half-ear 28 at the top of the hanger body 2 between the hanging rod 8 and the fixed seat 4. Release the movable plate 7, and the spring 9 will shorten, causing the slide bar 6 and the hanging rod 8 to move to the right, so that the hanging rod 8 passes through the ear hole 29. The hanger body 2 can then be hung in the hanger frame 1. Pull the connecting plate 17 forward to stretch the spring 19. Move the sliding plate 10 up and down to adjust the height of the bracket 11. Insert the insertion rod 30 through the through hole 13 and the ear hole 29 of the lower half-ear 28, and then insert it into the blind hole 12. Release the connecting plate 17, and the spring 19 will retract. The short drive pin 18 is inserted into the pin hole 14 to lock the insert rod 30, which limits the lower part of the hanger body 2 and prevents the hanger body 2 from shifting or falling off under the impact of the downhole fluid, thus affecting the accuracy of corrosion monitoring data. The hanger frame 1 is placed in the designated position downhole for corrosion testing by means of an external telescopic rod or external chain. When removing the hanger body 2, simply pull the connecting plate 17 forward again and pull the insert rod 30 to the left, and then pull the movable plate 7 to the left to make the hanger 8 leave the ear hole 29, so that the hanger body 2 can be quickly removed. The installation and disassembly are convenient, saving time and bringing convenience to the use of corrosion hangers.

[0028] In this embodiment, specifically: a blind groove 20 is provided on the front surface of the connecting plate 17, and a handle 21 is fixedly connected to the inner side wall of the blind groove 20; so that the connecting plate 17 can be moved by holding the handle 21.

[0029] In this embodiment, specifically: a pull ring 22 is fixedly connected to the left side wall of the insertion rod 30; this facilitates the left and right movement of the insertion rod 30.

[0030] In this embodiment, specifically: a friction plate 23 is provided on the right side of the front surface of the slide bar 6; a push rod 24 is threadedly connected to the front surface of the fixing seat 4; the rear end of the push rod 24 extends into the slide groove 5; and a circular plate 25 is fixedly connected to the front end of the push rod 24; the front surface of the friction plate 23 is provided with a rough texture to increase friction; after the hanging plate body 2 is hung on the hanging rod 8, the push rod 24 is rotated clockwise to make the push rod 24 penetrate into the slide groove 5 and press against the friction plate 23; the friction between the push rod 24 and the friction plate 23 can lock the friction plate 23 and the slide bar 6 to prevent the slide bar 6 from accidentally sliding left or right and causing the hanging plate body 2 to fall off.

[0031] In this embodiment, specifically: the front surface of the circular plate 25 is provided with an internal hexagonal hole 26; this facilitates the use of an external internal hexagonal wrench to rotate the push rod 24.

[0032] In this embodiment, specifically: a handle 27 is fixedly connected to the left side wall of the movable plate 7; to facilitate the movement of the movable plate 7.

[0033] The working principle of this utility model is as follows: When installing the corrosion hanger, pull the movable plate 7 and the slide bar 6 to the left, and the spring 9 will be stretched. Place the half ear 28 at the top of the hanger body 2 between the hanging rod 8 and the fixed seat 4. Release the movable plate 7, and the spring 9 will shorten, causing the slide bar 6 and the hanging rod 8 to move to the right, so that the hanging rod 8 passes through the ear hole 29. The hanger body 2 can then be hung in the hanger frame 1. Pull the connecting plate 17 forward to stretch the spring 19. Move the sliding plate 10 up and down to adjust the height of the bracket 11. Insert the insertion rod 30 through the through hole 13 and the ear hole 29 of the lower half ear 28, and then insert it into the blind hole 12. Release the connecting plate. 17. Spring 2 19 shortens and drives pin 18 to insert into pin hole 14, which can lock the insertion rod 30 and limit the lower part of the hanging plate body 2 to prevent the hanging plate body 2 from being displaced or falling off under the impact of downhole fluid, thus affecting the accuracy of corrosion monitoring data. The hanging plate frame 1 is placed in the designated position downhole for corrosion testing by external telescopic rod or external chain. When removing the hanging plate body 2, simply pull the connecting plate 17 forward again and pull the insertion rod 30 to the left, and then pull the movable plate 7 to the left to make the hanging rod 8 leave the ear hole 29, so that the hanging plate body 2 can be quickly removed. The installation and disassembly are convenient and save time.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-coated plate device for downhole corrosion monitoring, characterized in that: The device includes a hanging frame (1) and a hanging body (2). The upper and lower surfaces of the hanging body (2) are both fixedly provided with half-ears (28). The outer side wall of each half-ear (28) has an ear hole (29). A connecting ring (3) is fixedly provided in the middle of the upper surface of the hanging frame (1). A fixed seat (4) is fixedly connected to the right side of the inner top wall of the hanging frame (1). A sliding groove (5) is provided on the upper part of the left side wall of the fixed seat (4). A sliding strip (6) is slidably connected to the inner side wall of the sliding groove (5). A movable plate (7) is fixedly connected to the left end of the sliding strip (6). A hanging rod (8) is fixedly connected to the lower part of the right side wall of the movable plate (7). Two springs (9) are symmetrically fixed between the right side wall of the sliding strip (6) and the inner side wall of the sliding groove (5). A sliding plate (10) is slidably connected to the lower surface of the hanging frame (1). A bracket (11) is fixedly connected to the top of the bracket (10). A blind hole (12) is opened on the right side of the inner wall of the bracket (11). A through hole (13) is opened on the left side wall of the bracket (11). A plug rod (30) is inserted into the inner wall of the through hole (13). A pin hole (14) is opened on the outer side wall of the plug rod (30). Two sleeves (15) are symmetrically fixedly connected to the left side of the front surface of the bracket (11). A sleeve rod (16) is slidably connected to the inner wall of the sleeve (15). A connecting plate (17) is fixedly connected to the front end of the sleeve rod (16). A pin rod (18) is slidably connected to the left side of the front surface of the bracket (11). The front end of the pin rod (18) is fixedly connected to the middle of the rear surface of the connecting plate (17). A spring (19) is fixedly connected between the rear surface of the sleeve rod (16) and the inner wall of the sleeve (15).

2. The corrosion-coated plate device for downhole corrosion monitoring according to claim 1, characterized in that: The front surface of the connecting plate (17) is provided with a blind groove (20), and a handle (21) is fixedly connected to the inner side wall of the blind groove (20).

3. The corrosion-coated plate device for downhole corrosion monitoring according to claim 2, characterized in that: A pull ring (22) is fixedly connected to the left side wall of the insertion rod (30).

4. The corrosion-coated plate device for downhole corrosion monitoring according to claim 3, characterized in that: The right side of the front surface of the slide bar (6) is provided with a friction plate (23), and the front surface of the fixed seat (4) is threaded with a push rod (24). The rear end of the push rod (24) extends into the slide groove (5), and the front end of the push rod (24) is fixedly connected with a circular plate (25).

5. The corrosion-coated plate device for downhole corrosion monitoring according to claim 4, characterized in that: The front surface of the circular plate (25) is provided with an internal hexagonal hole (26).

6. The corrosion-coated plate device for downhole corrosion monitoring according to claim 5, characterized in that: A handle (27) is fixedly connected to the left side wall of the movable plate (7).

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