A wellhead protector for oil production

By using structures such as telescopic protective cylinders, telescopic plates, and pin rods in wellhead protection devices adopted in oil exploration, the problems of large gaps and poor stability have been solved, achieving stable protection and fixation for different wellheads and enhancing the protection effect.

CN224338957UActive Publication Date: 2026-06-09TIANJIN DONGFANG OUYI PETROLEUM EQUIP MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN DONGFANG OUYI PETROLEUM EQUIP MFG CO LTD
Filing Date
2025-08-21
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing wellhead protection devices used in oil exploration suffer from large gaps, poor protection, and difficulty in fixing them to the ground, resulting in poor stability.

Method used

Multiple first and second columns are used, combined with telescopic protective cylinders, telescopic plates, telescopic rods and telescopic protective pipes. The adjustability and stability of the device are achieved through pin rods and connecting pins, and the ground is fixed by knobs and screws of the fixing mechanism.

Benefits of technology

It achieves effective protection for wellheads of different sizes, enhances the stability and safety of the device, and improves the protection effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a well head protection device for oil exploitation belongs to oil exploitation technical field, including a plurality of first stand and a plurality of second stand, the first stand all is provided with fixed establishment, and the first stand and the second stand between two adjacent respectively are provided with connecting mechanism, the side of a plurality of first stand all is fixedly connected with a plurality of telescopic link, the side fixed link of first stand has telescopic board, in the utility model, the telescopic protection pipe, telescopic link, telescopic protection cylinder and telescopic board are arranged between the first stand and the second stand, and the size of the protection device is adjusted through the telescopic protection cylinder, telescopic board, telescopic protection pipe, telescopic link, in addition, the strength of the protection device can be guaranteed by telescopic protection pipe and telescopic link, and the dirt splashed in oil exploitation can be blocked by telescopic protection cylinder and telescopic board, and the safety protection is good.
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Description

Technical Field

[0001] This utility model relates to the field of oil extraction technology, and more specifically, to a wellhead protection device for oil extraction. Background Technology

[0002] Oil extraction is the process of extracting oil and natural gas from underground reservoirs, encompassing exploration, drilling, and production. Its core relies on the flow of oil and gas within the reservoir and artificial propulsion technologies. Oil drilling safety is the general term for ensuring operational safety in oil and gas extraction, covering systematic measures such as well site layout, equipment management, process operation, and risk control. Its core components include drilling equipment, well control devices, operational processes, and the HSE (Health, Safety, and Environment) management system.

[0003] A search revealed a patent with publication number CN221442561U, which discloses a wellhead protection device for oil extraction, relating to the field of oil extraction technology. The device includes a first support rod and a contraction assembly. A second support rod is located on one side of the first support rod. The contraction assembly, used to adjust different sizes, is positioned between the first and second support rods. The contraction assembly includes a fixed connector, a first rotating rod, a sliding base, a sliding connector, and a second rotating rod. The first rotating rod is rotatably connected to the fixed connector on the side away from the first support rod, and the sliding base is located below the fixed connector. This wellhead protection device for oil extraction, by incorporating the contraction assembly, allows for direct pulling of the first and second support rods when enclosing wellheads of different sizes. This rotation causes the first and second rotating rods to rotate, allowing the sliding connector to slide within the sliding base, thus adjusting to the desired size and improving its applicability. However, the aforementioned patent has the following shortcomings: large gaps remain at the top and bottom of the contraction assembly, resulting in poor protective effect; furthermore, the device is not easily fixed to the ground, leading to poor stability. Therefore, we propose a wellhead protection device for oil extraction. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a wellhead protection device for oil development.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A wellhead protection device for oil exploration includes multiple first columns and multiple second columns. Each first column is equipped with a fixing mechanism, and a connecting mechanism is provided between two adjacent first and second columns. Multiple telescopic rods are fixedly connected to the sides of the multiple first columns, and telescopic plates are fixedly connected to the sides of the first columns. Multiple telescopic protective tubes are fixedly connected to the sides of the multiple second columns. The ends of the telescopic rods are movably sleeved into the inner cavity of the telescopic protective tubes. Telescopic protective cylinders are fixedly connected to the sides of the second columns, and the ends of the telescopic plates are movably sleeved into the inner cavity of the telescopic protective cylinders. Each telescopic rod is provided with multiple inner insertion holes, and each end of the telescopic protective tube is provided with an outer insertion hole. A pin is fitted into the inner cavity of the outer and inner insertion holes.

[0007] As a preferred embodiment of this utility model, the fixing mechanism includes an operating groove disposed on the side of the first column, a fixing post fixedly sleeved at the bottom of the inner cavity of the operating groove, a storage groove disposed at the bottom of the fixing post, a screw threadedly sleeved at the top of the fixing post, a knob fixedly connected to the top of the screw, the bottom end of the screw extending into the inner cavity of the storage groove and fixedly connected to a pin, and a spiral blade disposed on the side of the pin.

[0008] As a preferred embodiment of the present invention, the connecting mechanism includes a connecting seat fixedly connected to the side of the first column and two connecting blocks fixedly connected to the side of the second column. The connecting seat is provided with a second through hole, and the connecting blocks are provided with a first through hole. The inner cavities of the first through hole and the second through hole are fitted with connecting pins.

[0009] In a preferred embodiment of this utility model, the inner wall of the telescopic protective cylinder is fitted with the outer side of the telescopic plate, and the inner wall of the telescopic protective tube is fitted with the outer side of the telescopic rod.

[0010] In a preferred embodiment of this utility model, the outer diameter of the pin rod is equal to the inner diameter of the outer insertion hole and the inner insertion hole, respectively.

[0011] In a preferred embodiment of this utility model, the outer diameter of the connecting pin is equal to the inner diameter of the second through hole and the first through hole, respectively.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, a telescopic protective pipe, a telescopic rod, a telescopic protective cylinder and a telescopic plate are provided between the first column and the second column. The size of the protective device can be adjusted by the telescopic protective cylinder, the telescopic plate, the telescopic protective pipe and the telescopic rod. In addition, the strength of the protective device can be guaranteed by the telescopic protective pipe and the telescopic rod. The protective cylinder and the telescopic plate can block the dirt splashed out during oil extraction, and the safety protection is good.

[0014] (2) In this utility model, by using the fixed column, storage groove, screw, knob, pin and spiral blade together, rotating the knob drives the screw to rotate, and the threaded engagement between the screw and the fixed column drives the pin and spiral blade to rotate and move downward, so that the pin and spiral blade are inserted into the ground to fix the device, ensuring the stability of the device and making it practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the overall structure of this utility model;

[0017] Figure 3 This is an exploded view of the telescopic plate and telescopic protective cylinder of this utility model;

[0018] Figure 4 This is a cross-sectional view of the fixing column of this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 1. First column; 2. Second column; 3. Telescopic protective cylinder; 4. Telescopic plate; 5. Fixing mechanism; 6. Connecting mechanism; 7. Telescopic protective tube; 8. Telescopic rod; 9. External insertion hole; 10. Internal insertion hole; 11. Pin rod; 12. Operating slot; 13. Fixing column; 14. Storage slot; 15. Screw; 16. Knob; 17. Insert pin; 18. Spiral blade; 19. Connecting block; 20. Connecting seat; 21. First through hole; 22. Second through hole; 23. Connecting pin. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1:

[0025] like Figures 1 to 4 As shown, an oil wellhead protection device includes multiple first columns 1 and multiple second columns 2. Each first column 1 is equipped with a fixing mechanism 5, and a connecting mechanism 6 is provided between two adjacent first columns 1 and second columns 2. Multiple telescopic rods 8 are fixedly connected to the sides of each of the first columns 1, and telescopic plates 4 are fixedly connected to the sides of each of the second columns 2. Multiple telescopic protective tubes 7 are fixedly connected to the sides of each of the second columns 2. The ends of the telescopic rods 8 are movably sleeved into the inner cavity of the telescopic protective tubes 7. The inner wall of the telescopic protective cylinder 3 and the outer surface of the telescopic plate 4 are in contact with each other, and the inner wall of the telescopic protective tube 7 and the outer surface of the telescopic rod 8 are in contact with each other, ensuring the stability of the telescopic plate 4 inserted into the inner cavity of the telescopic protective cylinder 3, and simultaneously ensuring the stability of the telescopic rod 8 inserted into the inner cavity of the telescopic protective tube 7. Furthermore, the telescopic protective cylinder 3, telescopic plate 4, telescopic protective tube 7, and telescopic rod 8 can be made of lightweight materials, such as carbon fiber. The sides of the second columns 2 are fixedly connected to the telescopic protective cylinder 3, and the ends of the telescopic plate 4 are movably sleeved into the inner cavity of the telescopic protective tube 7. The telescopic protective tube 3 has multiple inner insertion holes 10 on its telescopic rod 8, and the telescopic protective tube 7 has an outer insertion hole 9 at its end. A pin 11 is fitted into the inner cavity of both the outer insertion hole 9 and the inner insertion hole 10. The outer diameter of the pin 11 is equal to the inner diameter of the outer insertion hole 9 and the inner insertion hole 10, respectively, ensuring the stability of the pin 11 inserted into the inner cavity of the outer insertion hole 9 and the inner insertion hole 10. This provides a stable connection between the telescopic protective tube 7 and the telescopic rod 8. The connecting mechanism 6 includes a connecting rod fixedly connected to the side of the first column 1. The base 20 and two connecting blocks 19 are fixedly connected to the side of the second column 2. The base 20 is provided with a second through hole 22, and the connecting block 19 is provided with a first through hole 21. The inner cavity of the first through hole 21 and the second through hole 22 is fitted with a connecting pin 23. The outer diameter of the connecting pin 23 is equal to the inner diameter of the second through hole 22 and the first through hole 21, respectively, to ensure the stability of the connecting pin 23 when inserted into the inner cavity of the second through hole 22 and the first through hole 21, and to ensure the stability of the connection between the first column 1 and the second column 2.

[0026] Example 2:

[0027] Based on Example 1, such as Figure 1 and Figure 4 As shown, the fixing mechanism 5 includes an operating groove 12 located on the side of the first column 1. A fixing column 13 is fixedly sleeved at the bottom of the inner cavity of the operating groove 12. A storage groove 14 is provided at the bottom of the fixing column 13. A screw 15 is threadedly sleeved at the top of the fixing column 13. A knob 16 is fixedly connected to the top of the screw 15. The bottom end of the screw 15 extends into the inner cavity of the storage groove 14 and is fixedly connected to a pin 17. A spiral blade 18 is provided on the side of the pin 17.

[0028] It should be noted that this utility model is a wellhead protection device for oil exploration. In use, firstly, each set of first column 1 and second column 2 is pulled, causing the telescopic protective cylinder 3 and telescopic plate 4, and the telescopic protective pipe 7 and telescopic rod 8 between the first column 1 and second column 2 to extend and retract relative to each other, thereby adjusting the size of the protection device. Additionally, the external insertion hole 9 on the telescopic protective pipe 7 is aligned with a set of internal insertion holes 10 on the telescopic rod 8. Insert pins 11 into the external insertion hole 9 and internal insertion hole 10 to connect and fix the telescopic protective pipe 7 and telescopic rod 8, and the telescopic protective cylinder 3 and telescopic plate 4. Then, the respective... The connecting seats 20 and connecting blocks 19 on the adjacent first column 1 and second column 2 are inserted into each other, so that the first through hole 21 and the second through hole 22 are aligned. The connecting pins 23 are inserted into the first through hole 21 and the second through hole 22, so that the protective device surrounds the side of the oil wellhead for protection. Finally, the knob 16 is turned to drive the screw 15 to rotate. The screw 15 drives the pin 17 and the spiral blade 18 to rotate synchronously. At the same time, the threaded engagement between the screw 15 and the fixed column 13 drives the pin 17 and the spiral blade 18 to move down, so that the pin 17 and the spiral blade 18 rotate and insert into the ground, thereby fixing the device.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A wellhead protection device for oil extraction, characterized in that: It includes multiple first columns (1) and multiple second columns (2). Each first column (1) is provided with a fixing mechanism (5). A connecting mechanism (6) is provided between two adjacent first columns (1) and second columns (2). Multiple telescopic rods (8) are fixedly connected to the sides of the multiple first columns (1). A telescopic plate (4) is fixedly connected to the sides of the first columns (1). Multiple telescopic protective tubes (7) are fixedly connected to the sides of the multiple second columns (2). The end of the telescopic rod (8) is movably sleeved into the inner cavity of the telescopic protective tube (7). A telescopic protective cylinder (3) is fixedly connected to the side of the second column (2). The end of the telescopic plate (4) is movably sleeved into the inner cavity of the telescopic protective cylinder (3). Multiple inner insertion holes (10) are provided on each telescopic rod (8). An outer insertion hole (9) is provided at the end of each telescopic protective tube (7). A pin rod (11) is sleeved in the inner cavity of the outer insertion hole (9) and the inner insertion hole (10).

2. A wellhead protector for use in oil and gas production according to claim 1, characterized in that: The fixing mechanism (5) includes an operating groove (12) provided on the side of the first column (1). A fixing column (13) is fixedly sleeved at the bottom of the inner cavity of the operating groove (12). A storage groove (14) is provided at the bottom of the fixing column (13). A screw (15) is threadedly sleeved at the top of the fixing column (13). A knob (16) is fixedly connected to the top of the screw (15). The bottom end of the screw (15) extends into the inner cavity of the storage groove (14) and is fixedly connected to a pin (17). A spiral blade (18) is provided on the side of the pin (17).

3. A wellhead protector for use in oil and gas production according to claim 1, characterized in that: The connecting mechanism (6) includes a connecting seat (20) fixedly connected to the side of the first column (1) and two connecting blocks (19) fixedly connected to the side of the second column (2). The connecting seat (20) is provided with a second through hole (22), and the connecting block (19) is provided with a first through hole (21). The inner cavity of the first through hole (21) and the second through hole (22) is fitted with a connecting pin (23).

4. A wellhead protector for use in the oil and gas industry as claimed in claim 1, wherein: The inner wall of the telescopic protective cylinder (3) is in contact with the outer side of the telescopic plate (4), and the inner wall of the telescopic protective tube (7) is in contact with the outer side of the telescopic rod (8).

5. A wellhead protector for use in oil and gas production according to claim 1, characterized in that: The outer diameter of the pin (11) is equal to the inner diameter of the outer insertion hole (9) and the inner insertion hole (10), respectively.

6. A wellhead protector for use in oil and gas production according to claim 3, characterized in that: The outer diameter of the connecting pin (23) is equal to the inner diameter of the second through hole (22) and the first through hole (21), respectively.