A well drilling unblocking device

Abstract

The utility model relates to oilfield drilling technical field especially relates to a dredging device for oilfield drilling, its technical scheme includes: fixed block, scraper, fixed rod and fixed plate, both sides of fixed block all fixedly installed have fixed sleeve, the both ends of two fixed sleeves all are provided with the insertion hole, two fixed rod inserts two fixed sleeves inside from two insertion holes, the opposite end of two fixed rods all is fixedly installed with movable plate, two movable plates with two fixed sleeve inside opposite one side all are fixedly installed with spring, the both ends of two fixed rods all are provided with screw groove, two scrapers opposite one side all are fixedly installed with screw rod, two connecting plates all are provided with round hole, two screw rods pass two round holes and two screw grooves are engaged in screw threads. The utility model has the advantages of can adjust the position of scraper according to the size of oil pipe, is applicable to the oil pipe cleaning of multiple sizes, and the staff is convenient to the replacement of the scraper of serious wear and tear.

Description

Technical Field

[0001] This utility model relates to the field of oilfield drilling technology, specifically to a dredging device for oilfield drilling. Background Technology

[0002] Oilfield drilling dredging equipment is a device used to clean impurities from the inner wall of oil pipes in oilfield drilling and prevent blockages. By clearing the oil pipes, it reduces the resistance of crude oil during transportation, thereby improving oil production efficiency and reducing downtime caused by blockages.

[0003] Physical methods are used to clean the inner walls of oil pipes. Common tools include brushes, scrapers, and cleaning fiber balls. When using a scraper to clean the inner walls of an oil pipe, the scraper needs to be rotated. This rotation increases the friction between the scraper and the inner wall of the oil pipe. Under the influence of friction, impurities adhering to the inner wall of the oil pipe are scraped off. If the scraper position is fixed and cannot be adjusted according to the inner diameter of the oil pipe, the scraper may not be able to fully extend for oil pipes with smaller inner diameters, resulting in incomplete cleaning. For oil pipes with larger inner diameters, the scraper may not be able to contact the pipe wall, failing to clean effectively and affecting the quality of cleaning. Utility Model Content

[0004] The purpose of this utility model is to provide a dredging device for oilfield drilling, which has the advantages of adjusting the position of the scraper according to the size of the oil pipe, being suitable for cleaning oil pipes of various sizes, and facilitating the replacement of severely worn scrapers by workers. It solves the problem that the dredging device is inconvenient for workers to adjust the position of the cleaning structure according to the size of the oil pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dredging device for oilfield drilling, comprising a fixed block, a scraper, fixed rods, and a fixed plate. Fixed sleeves are fixedly installed on both sides of the fixed block. Insertion holes are provided at opposite ends of the two fixed sleeves. Two fixed rods are inserted into the interiors of the two fixed sleeves through the two insertion holes. Movable plates are fixedly installed at opposite ends of the two fixed rods. Springs are fixedly installed on opposite sides of the interiors of the two movable plates and the two fixed sleeves. Threaded grooves are provided at opposite ends of the two fixed rods. Screws are fixedly installed on opposite sides of the two scrapers. Round holes are provided on both connecting plates. The two screws pass through the two round holes and engage with the two threaded grooves. A stud is fixedly installed on the top of the fixed block, and a threaded sleeve is movably installed on the bottom of the fixed plate.

[0006] Preferably, both fixed sleeves have internal grooves, and both movable plates have sliders installed on their outer sides, with the two sets of sliders slidably connected to the two sets of grooves.

[0007] Preferably, the two scrapers are attached to opposite sides of the two connecting plates, and the two connecting plates are abutted and fixed to the two fixing rods.

[0008] Preferably, the outer diameter of the two movable plates is greater than the inner diameter of the two sockets.

[0009] Preferably, the threaded sleeve engages with the stud thread, and a rubber sleeve is fixedly installed on the outside of the threaded sleeve.

[0010] Preferably, a connecting sleeve is fixedly installed at the bottom of the fixing plate, and a connecting rod is fixedly installed at the top of the fixing block, with the top of the connecting rod inserted into the connecting sleeve from the bottom.

[0011] Preferably, the fixing plate has fixing holes arranged in a rectangular array.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes springs and scrapers. Two scrapers are placed inside the oil pipe, and a drive mechanism rotates a fixed block via a fixed plate. The fixed block, through a fixed sleeve and a fixed rod, rotates the two scrapers. Depending on the inner diameter of the oil pipe, the springs inside the two fixed sleeves are compressed or stretched by the centrifugal force generated by the rotation, causing the two scrapers to contact the inner wall of the oil pipe. During rotation, the scrapers scrape off impurities adhering to the inner wall of the oil pipe through friction. After cleaning, if the scrapers are severely worn and need replacement, the two scrapers are rotated to unscrew the screws from the screw grooves of the two fixed rods, separating the scrapers from the fixed rods for replacement. This design allows for adjustment of the scraper position according to the size of the oil pipe, making it suitable for cleaning oil pipes of various sizes and facilitating the replacement of severely worn scrapers. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0015] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0016] Figure 3 This is a three-dimensional structural diagram of the present invention from a third angle;

[0017] Figure 4 This is a cross-sectional structural diagram of the fixing sleeve, connecting plate, and fixing rod of this utility model.

[0018] In the diagram: 1. Fixing block; 2. Stud; 3. Fixing sleeve; 4. Connecting plate; 5. Scraper; 6. Fixing rod; 7. Rubber sleeve; 8. Fixing plate; 9. Fixing hole; 10. Screw sleeve; 11. Connecting sleeve; 12. Connecting rod; 13. Screw; 14. Round hole; 15. Screw groove; 16. Insertion hole; 17. Spring; 18. Slide groove; 19. Slider; 20. Movable plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a dredging device for oilfield drilling, comprising a fixed block 1, a scraper 5, fixed rods 6, and fixed plates 8. Fixed sleeves 3 are fixedly installed on both sides of the fixed block 1. Insertion holes 16 are provided at opposite ends of the two fixed sleeves 3. The two fixed rods 6 are inserted into the two fixed sleeves 3 through the two insertion holes 16. Movable plates 20 are fixedly installed at opposite ends of the two fixed rods 6. The outer diameter of the two movable plates 20 is larger than the inner diameter of the two insertion holes 16. The two movable plates 20 prevent the two fixed rods 6 from slipping out of the two fixed sleeves 3. Both movable plates 20 are provided with sliding grooves 18, and sliders 19 are installed on the outer sides of both movable plates 20. The two sets of sliders 19 are slidably connected to the two sets of sliding grooves 18. When the two movable plates 20 move inside the two fixed sleeves 3, the two sets of sliders 19 slide in the two sets of sliding grooves 18 as the two movable plates 20 move, so as to prevent the two movable plates 20 from shaking. Springs 17 are fixedly installed on opposite sides of the two movable plates 20 and the two fixed sleeves 3. Threaded grooves 15 are provided at opposite ends of the two fixed rods 6. Threaded rods 13 are fixedly installed on opposite sides of the two scrapers 5. Circular holes are provided on both connecting plates 4. 14. Two screws 13 pass through two round holes 14 and are threaded into two screw grooves 15. The opposite sides of the two scrapers 5 are attached to the opposite sides of the two connecting plates 4. The two connecting plates 4 are pressed and fixed against the two fixing rods 6. The two scrapers 5 and the two fixing rods 6 clamp and fix the two connecting plates 4. The two connecting plates 4 provide support for the two scrapers 5 and increase the strength of the scrapers 5. A stud 2 is fixedly installed on the top of the fixing block 1. A screw sleeve 10 is movably installed on the bottom of the fixing plate 8. The screw sleeve 10 is threaded into the stud 2. A rubber sleeve 7 is fixedly installed on the outside of the screw sleeve 10. The screw can be rotated using the rubber sleeve 7. Sleeve 10 rotates and moves on stud 2. Connecting sleeve 11 is fixedly installed at the bottom of fixed plate 8. Connecting rod 12 is fixedly installed at the top of fixed block 1. The top of connecting rod 12 is inserted into the bottom of connecting sleeve 11. Connecting rod 12 limits the fixed plate 8. When fixed plate 8 is raised or lowered, connecting rod 12 moves inside connecting sleeve 11 to prevent fixed plate 8 from shaking. Fixed plate 8 has fixed holes 9 in a rectangular array. Through the fixed holes 9 of fixed plate 8, fixed plate 8 is fixed to drive mechanism using bolts or other tools. Drive mechanism drives fixed block 1 to rotate through fixed plate 8.

[0021] Working principle: Press and hold the fixing block 1, and rotate the threaded sleeve 10 using the rubber sleeve 7. The threaded sleeve 10 rotates and moves on the stud 2, causing the fixing plate 8 to rise and adjust its height. After adjusting the fixing plate 8 to a suitable height, use bolts or other tools to fix the fixing plate 8 to the drive mechanism through the fixing hole 9. Place the two scrapers 5 inside the oil pipe. The drive mechanism drives the fixing block 1 to rotate through the fixing plate 8. The fixing block 1 drives the two scrapers 5 to rotate through the fixing sleeve 3 and the fixing rod 6. The rotation is adjusted according to the inner diameter of the oil pipe. The springs 17 inside the two fixed sleeves 3 are compressed or stretched under the influence of centrifugal force generated by rotation, so that the two scrapers 5 come into contact with the inner wall of the oil pipe. During the rotation, the two scrapers 5 scrape off the impurities attached to the inner wall of the oil pipe through the friction between them. After cleaning, when the scrapers 5 are severely worn and need to be replaced, rotate the two scrapers 5 and unscrew the screws 13 of the two scrapers 5 from the screw grooves 15 of the two fixed rods 6, so that the scrapers 5 can be separated from the fixed rods 6 and the scrapers 5 can be replaced.

[0022] 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 well-dredging device for oilfield drilling, comprising a fixing block (1), a scraper (5), a fixing rod (6), and a fixing plate (8), characterized in that: Fixing sleeves (3) are fixedly installed on both sides of the fixing block (1). Insertion holes (16) are opened at the opposite ends of the two fixing sleeves (3). The two fixing rods (6) are inserted into the two fixing sleeves (3) through the two insertion holes (16). Movable plates (20) are fixedly installed at the opposite ends of the two fixing rods (6). Springs (17) are fixedly installed on the opposite side of the two movable plates (20) and the inside of the two fixing sleeves (3). Threaded grooves (15) are opened at the opposite ends of the two fixing rods (6). Screws (13) are fixedly installed on the opposite side of the two scrapers (5). Round holes (14) are opened on the two connecting plates (4). The two screws (13) pass through the two round holes (14) and engage with the two threaded grooves (15). A stud (2) is fixedly installed on the top of the fixing block (1). A threaded sleeve (10) is movably installed on the bottom of the fixing plate (8).

2. The oilfield drilling dredging device according to claim 1, characterized in that: Both of the fixed sleeves (3) have internal grooves (18), and both movable plates (20) have sliders (19) installed on their outer sides. The two sets of sliders (19) are slidably connected to the two sets of grooves (18).

3. The oilfield drilling dredging device according to claim 1, characterized in that: The two scrapers (5) are attached to each other on opposite sides and to the opposite side of the two connecting plates (4), and the two connecting plates (4) are pressed and fixed against the two fixing rods (6).

4. The oilfield drilling dredging device according to claim 1, characterized in that: The outer diameter of the two movable plates (20) is greater than the inner diameter of the two sockets (16).

5. The oilfield drilling dredging device according to claim 1, characterized in that: The threaded sleeve (10) is threadedly engaged with the stud (2), and a rubber sleeve (7) is fixedly installed on the outside of the threaded sleeve (10).

6. The oilfield drilling dredging device according to claim 1, characterized in that: The bottom of the fixing plate (8) is fixedly installed with a connecting sleeve (11), and the top of the fixing block (1) is fixedly installed with a connecting rod (12). The top of the connecting rod (12) is inserted into the connecting sleeve (11) from the bottom.

7. The oilfield drilling dredging device according to claim 1, characterized in that: The fixing plate (8) has fixing holes (9) arranged in a rectangular array.

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