Wellhead falling object prevention device for petroleum drilling engineering

Abstract

The utility model discloses a wellhead anti-falling device for petroleum drilling engineering, which relates to the technical field of wellhead anti-falling and comprises a petroleum well, the outer surface of the petroleum well is fixedly connected with a first mounting ring, and the outer surface of the petroleum well is movably sleeved with a second mounting ring. Two L-shaped fixing frames are fixedly connected to the outer surface of the second mounting ring, a driving box is fixedly connected between vertical rods of the two L-shaped fixing frames, two mounting plates are fixedly connected to the inner wall of the driving box, rotating shafts are rotatably connected to the surfaces of the upper sides of the mounting plates, and the upper ends of the rotating shafts rotatably penetrate out of the surface of the upper side of the driving box; and the driving assembly in the driving box is matched with the rotating shaft and the first connecting plate, so that the protective baffle can be conveniently controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of wellhead falling object prevention, in particular to a wellhead falling object prevention device for oil drilling engineering. Background Art

[0002] Oil drilling engineering is a systematic engineering that uses oil drilling equipment to drill through multiple strata along a designed trajectory from the ground to the predetermined target layer (oil and gas layer or potential oil and gas layer), forming a stable channel (i.e. oil and gas well) for oil and gas production or injection of the required fluid (water, gas, steam), and completing coring, logging, well logging and testing during and after drilling to obtain various information required for exploration, development and drilling.

[0003] For example, the Chinese patent with patent announcement number CN220955536U includes an oil well, and a protective mechanism for the wellhead used for oil drilling engineering is installed inside the oil well. The protective mechanism includes a well cover, a fixing box, an adjusting block, a rotating shaft, a motor, a slide, a telescopic rod, and a support rod. By setting up a protective mechanism, this patent can improve the protective effect of the oil well through the protective mechanism when the device is used in the later stage, and prevent the occurrence of falling objects and dangers. After the oil well is drilled, the motor is turned on to drive the rotating shaft to rotate, and the adjusting block is raised and lowered along the outside of the rotating shaft, and the adjusting block slides along the inside of the slide, and the telescopic rod and the support rod are raised and lowered accordingly, driving the well cover to protect the oil well as a whole, improving the fixing effect of the oil well, and effectively preventing objects from falling. At the same time, it is convenient to adjust the opening and closing of the well cover, and improve the overall flexibility and practicality of the device.

[0004] Although this patent can effectively prevent objects from falling, when completely opening the wellhead protection, it is necessary to remove the four fixing bolts separately, then manually remove the protection mechanism, and use tools to clamp the isolation net. The overall operation process is cumbersome and there are certain inconveniences. In view of this, we propose a wellhead anti-falling device for oil drilling projects. Utility Model Content

[0005] The purpose of the present utility model is to provide a wellhead falling object prevention device for oil drilling projects, so as to solve the problem proposed in the above-mentioned background technology that when the wellhead protection is completely opened, the four fixing bolts need to be removed separately, and then the protection mechanism needs to be removed manually, and the isolation net needs to be clamped with the help of tools, and the overall operation process is cumbersome.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wellhead anti-falling object device for oil drilling projects, comprising an oil well, the outer surface of the oil well being fixedly connected to a first mounting ring, the outer surface of the oil well being movably sleeved with a second mounting ring, the outer surface of the second mounting ring being fixedly connected to two L-shaped fixing frames, a drive box being fixedly connected between the two vertical rods of the L-shaped fixing frames, the inner wall of the drive box being fixedly connected to two mounting plates, the upper surface of the mounting plate being rotatably connected to a rotating shaft, the upper end of the rotating shaft being rotatably passed through the upper surface of the drive box, the outer surfaces of the two rotating shafts being respectively provided with first connecting plates, the rear surfaces of the two first connecting plates being fixedly connected to protective baffles, the two protective baffles being both arranged as semicircular, and a drive assembly being arranged inside the drive box.

[0007] Preferably, the driving assembly includes a driving motor, the driving motor is fixedly connected to the bottom wall of the driving box, and the output end of the driving motor is fixedly connected to the driving shaft.

[0008] Preferably, the outer surface of the driving shaft is sleeved with a first gear and a first synchronous wheel, and the outer surfaces of the two rotating shafts located inside the driving box are sleeved with a second gear and a second synchronous wheel respectively.

[0009] Preferably, the first gear is meshed with the second gear, a synchronous belt is meshed between the first synchronous wheel and the second synchronous wheel, and a tooth groove extending from the lower surface of the first connecting plate is formed on the upper surface.

[0010] Preferably, teeth are fixedly connected to the outer surface of the rotating shaft, and the teeth are adapted to the tooth grooves.

[0011] Preferably, a threaded groove is provided at the upper end of the rotating shaft, a fixing bolt is provided inside the threaded groove, and observation windows are provided on both of the protective baffles.

[0012] Preferably, a reinforcement groove is provided on a side of the left protective baffle close to the right protective baffle, and a reinforcement strip adapted to the reinforcement groove is fixedly connected to the right protective baffle.

[0013] Preferably, the inner wall of the oil well is provided with a hanging groove extending from its upper surface, the inner wall of the oil well is provided with an isolation net, the upper surface of the isolation net is fixedly connected with an L-shaped hanging plate, and the horizontal plate of the L-shaped hanging plate is located inside the hanging groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The wellhead anti-falling object device for oil drilling projects can conveniently operate the protective baffle through the driving assembly in the drive box in conjunction with the rotating shaft and the first connecting plate. After the protective baffle moves, it will directly open the seal of the oil wellhead. When the seal is fully opened, there is no need to disassemble it, which reduces the work intensity.

[0016] 2. The wellhead anti-falling object device used in oil drilling projects can not only increase the sealing of the two protective baffles after they are closed by cooperating with the reinforcing grooves and reinforcing strips, but also can be more conveniently disassembled when the protective baffles or observation windows need to be replaced and maintained through the setting of fixing bolts and threaded grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic structural diagram of a wellhead falling object prevention device for oil drilling engineering according to the present utility model;

[0019] Figure 2 This is a schematic diagram of the separation of the second mounting ring of the present invention;

[0020] Figure 3 This is a schematic diagram of the tooth groove of the utility model;

[0021] Figure 4 This is a schematic diagram of the reinforcement groove of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the drive box of the utility model.

[0023] Reference numerals: 1, oil well; 2, first mounting ring; 3, second mounting ring; 4, L-shaped fixing frame; 5, drive box; 6, mounting plate; 7, rotating shaft; 8, first connecting plate; 9, protective baffle;

[0024] 10. Drive motor; 11. Drive shaft; 12. First gear; 13. First synchronous pulley; 14. Second gear; 15. Second synchronous pulley; 16. Synchronous belt; 17. Tooth groove; 18. Tooth;

[0025] 19. Threaded groove; 20. Fixing bolt; 21. Observation window; 22. Reinforcement groove; 23. Reinforcement strip; 24. Hanging groove; 25. Isolation net; 26. L-shaped hanging plate. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: a wellhead anti-falling object device for oil drilling engineering, comprising an oil well 1, a first mounting ring 2 for structural installation fixedly connected to the outer surface of the oil well 1, a second mounting ring 3 movably sleeved on the outer surface of the oil well 1, two L-shaped fixing brackets 4 for connection fixedly connected to the outer surface of the second mounting ring 3, a drive box 5 for installing a drive assembly fixedly connected between the vertical rods of the two L-shaped fixing brackets 4, two mounting plates 6 fixedly connected to the inner wall of the drive box 5, the upper side surface of the mounting plate 6 is rotatably connected to a rotating shaft 7 for power transmission, the upper end of the rotating shaft 7 rotatably passes through the upper surface of the drive box 5 The outer surfaces of the two rotating shafts 7 are respectively provided with first connecting plates 8, and the rear side surfaces of the two first connecting plates 8 are fixedly connected with protective baffles 9 for protection. The first connecting plate 8 rotates and drives the two protective baffles 9 to rotate in opposite directions, thereby opening the wellhead closure. The two protective baffles 9 are both set to be semicircular, and a driving component is provided inside the driving box 5. The driving component in the driving box 5 cooperates with the rotating shaft 7 and the first connecting plate 8 to conveniently control the protective baffles 9. After the protective baffles 9 move, they will directly open the closure of the wellhead of the oil well 1. There is no need to disassemble when the closure is fully opened, which reduces the work intensity.

[0028] Furthermore, the drive assembly includes a drive source drive motor 10, which is fixedly connected to the bottom wall of the drive box 5. The output end of the drive motor 10 is fixedly connected to a drive shaft 11 for power transmission. The outer surface of the drive shaft 11 is provided with a first gear 12 and a first synchronous wheel 13 for power transmission. The outer surfaces of the two rotating shafts 7 located inside the drive box 5 are respectively provided with a second gear 14 and a second synchronous wheel 15. The drive motor 10 drives the drive shaft 11 to rotate. After the drive shaft 11 rotates, it synchronously drives the first gear 12 and the first synchronous wheel 13 to rotate. When the first gear 12 rotates, it will synchronously drive the second gear 14 to rotate. The second gear 14 synchronously drives the left rotating shaft 7 to rotate. The first gear 12 is meshed with the second gear 14. The first synchronous wheel 13 and the second synchronous wheel 15 are meshed with a synchronous belt 16. When the first synchronous wheel 13 rotates, it will cooperate with the synchronous belt 16 to drive the second synchronous wheel 15 to rotate. When the second synchronous wheel 15 rotates, it will drive the right rotating shaft 7 to rotate.

[0029] The upper surface of the first connecting plate 8 is provided with a tooth groove 17 extending from its lower surface, and the outer surface of the rotating shaft 7 is fixedly connected with a tooth 18 that cooperates with the tooth groove 17 for power transmission. The tooth 18 is adapted to the tooth groove 17, and when the two rotating shafts 7 rotate, the first connecting plate 8 is driven to rotate by the cooperation of the tooth 18 and the tooth groove 17. A threaded groove 19 is provided on the upper end of the rotating shaft 7, and a fixing bolt 20 is provided inside the threaded groove 19. After removing the fixing bolt 20, the protective baffle 9 can be directly removed, which is convenient for subsequent replacement, maintenance or cleaning of the protective baffle 9. Observation windows 21 that provide a field of view are provided on both protective baffles 9. A reinforcement groove 22 for enhancing sealing performance is provided on the side of the left protective baffle 9 close to the right protective baffle 9. A reinforcing strip 23 which is adapted to the reinforcing groove 22 and is also used to enhance the sealing performance is fixedly connected to the guard baffle 9. A hanging groove 24 extending from the upper surface thereof is provided on the inner wall of the oil well 1. An isolation net 25 is provided on the inner wall of the oil well 1. An L-shaped hanging plate 26 is fixedly connected to the upper surface of the isolation net 25. Insert your finger into the hanging groove 24 to buckle the L-shaped hanging plate 26, and then pull it upward to remove the isolation net 25. The horizontal plate of the L-shaped hanging plate 26 is located inside the hanging groove 24. Not only can the sealing of the two protective baffles 9 after closing be increased by cooperating with the reinforcing groove 22 and the reinforcing strip 23, but also the setting of the fixing bolt 20 and the threaded groove 19 can make it more convenient to disassemble when the protective baffle 9 or the observation window 21 needs to be replaced and maintained.

[0030] Working principle: When the wellhead of the oil well 1 needs to be opened or closed, it is only necessary to drive the drive shaft 11 to rotate through the drive motor 10. After the drive shaft 11 rotates, it synchronously drives the first gear 12 and the first synchronous wheel 13 to rotate. When the first gear 12 rotates, it synchronously drives the second gear 14 to rotate. The second gear 14 synchronously drives the left rotating shaft 7 to rotate. When the first synchronous wheel 13 rotates, it cooperates with the synchronous belt 16 to drive the second synchronous wheel 15 to rotate. When the second synchronous wheel 15 rotates, it drives the right rotating shaft 7 to rotate. When the two rotating shafts 7 rotate, they drive the first synchronous wheel 13 with the help of the teeth 18 and the tooth grooves 17. The connecting plate 8 rotates, and the first connecting plate 8 rotates, thereby driving the two protective baffles 9 to rotate in opposite directions, thereby opening the wellhead. At this time, insert your finger into the inside of the hanging groove 24 to buckle the L-shaped hanging plate 26, and then pull it upward to remove the isolation net 25. When the observation window 21 on the protective baffle 9 is broken or the protective baffle 9 is damaged, the fixing bolt 20 can be removed, and then the protective baffle 9 can be directly removed, which is convenient for subsequent replacement, maintenance or cleaning of the protective baffle 9. The setting of the reinforcement groove 22 and the reinforcement strip 23 can increase the sealing of the two protective baffles 9 after closing.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A wellhead falling object prevention device for oil drilling engineering, comprising an oil well (1), characterized in that: The outer surface of the oil well (1) is fixedly connected with a first mounting ring (2), and the outer surface of the oil well (1) is movably sleeved with a second mounting ring (3). The outer surface of the second mounting ring (3) is fixedly connected with two L-shaped fixing frames (4). A driving box (5) is fixedly connected between the vertical rods of the two L-shaped fixing frames (4). The inner wall of the driving box (5) is fixedly connected with two mounting plates (6). The upper surface of the mounting plate (6) is rotatably connected with a rotating shaft (7). The upper end of the rotating shaft (7) rotates and passes through the upper surface of the driving box (5). The outer surfaces of the two rotating shafts (7) are respectively provided with first connecting plates (8). The rear surfaces of the two first connecting plates (8) are fixedly connected with protective baffles (9). The two protective baffles (9) are both set to be semicircular. A driving assembly is provided inside the driving box (5).

2. The wellhead falling object prevention device for oil drilling engineering according to claim 1, characterized in that: The drive assembly comprises a drive motor (10), the drive motor (10) is fixedly connected to the bottom wall of the drive box (5), and the output end of the drive motor (10) is fixedly connected to a drive shaft (11).

3. The wellhead falling object prevention device for oil drilling engineering according to claim 2, characterized in that: The outer surface of the driving shaft (11) is sleeved with a first gear (12) and a first synchronous wheel (13), and the outer surfaces of the two rotating shafts (7) located inside the driving box (5) are sleeved with a second gear (14) and a second synchronous wheel (15).

4. The wellhead falling object prevention device for oil drilling engineering according to claim 3, characterized in that: The first gear (12) is meshed with the second gear (14), a synchronous belt (16) is meshed between the first synchronous wheel (13) and the second synchronous wheel (15), and a tooth groove (17) extending from the lower surface of the first connecting plate (8) is provided on the upper surface.

5. The wellhead falling object prevention device for oil drilling engineering according to claim 3 is characterized in that: The outer surface of the rotating shaft (7) is fixedly connected with teeth (18), and the teeth (18) are adapted to the tooth grooves (17).

6. The wellhead falling object prevention device for oil drilling engineering according to claim 5, characterized in that: A threaded groove (19) is provided at the upper end of the rotating shaft (7), a fixing bolt (20) is provided inside the threaded groove (19), and an observation window (21) is provided on each of the two protective baffles (9).

7. The wellhead falling object prevention device for oil drilling engineering according to claim 6, characterized in that: A reinforcement groove (22) is provided on a side of the left protective baffle (9) close to the right protective baffle (9), and a reinforcement strip (23) adapted to the reinforcement groove (22) is fixedly connected to the right protective baffle (9).

8. The wellhead falling object prevention device for oil drilling engineering according to claim 1, characterized in that: The inner wall of the oil well (1) is provided with a hanging groove (24) extending from its upper surface. The inner wall of the oil well (1) is provided with an isolation net (25). The upper surface of the isolation net (25) is fixedly connected with an L-shaped hanging plate (26). The horizontal plate of the L-shaped hanging plate (26) is located inside the hanging groove (24).

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