Wellhead protection device for petroleum drilling

Abstract

The utility model discloses a well mouth protection device for petroleum drilling, and belongs to the technical field of petroleum drilling, the well mouth protection device for petroleum drilling comprises a petroleum well mouth, a protection mechanism is arranged outside the petroleum well mouth, a sliding block is driven by a driving assembly to move outside a ground rail, and the sliding block drives a lifting frame to move; a servo motor arranged at the top of the lifting frame drives a reciprocating lead screw to rotate in the lifting frame, and the reciprocating lead screw is in threaded connection with a lifting block arranged outside, so that the lifting block is stressed to drive limiting blocks arranged on the two sides to slide in limiting grooves formed in the two sides of the lifting frame, and the lifting block drives a protective cover to ascend and descend; the protective cover covers the outside of the petroleum wellhead, the wellhead can be protected through the arranged protective cover, the wellhead is prevented from being damaged by external force, external sundries can be prevented from falling into a well, operation is easy and fast, and mounting, dismounting and using are convenient.

Description

Technical Field

[0001] This application relates to the field of oil drilling technology, specifically a wellhead protection device for oil drilling. Background Technology

[0002] Oil drilling engineering is a systematic project that uses oil drilling equipment to drill through multiple formations along a designed trajectory from the surface 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 the extraction or injection of the required fluids (water, gas, steam). During and after drilling, core sampling, logging, well logging and testing are carried out to obtain various information required for exploration, development and drilling.

[0003] Chinese utility model patent with publication number CN220955536U discloses a wellhead anti-falling object device for oil drilling engineering, specifically relating to the field of oil drilling, including oil wells. The oil well has a protective mechanism for the wellhead of oil drilling engineering installed inside, and 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. This utility model, by setting up a protective mechanism, can improve the protection of the oil well during later use, preventing accidents caused by falling objects. After the oil well is drilled, the motor is turned on to drive the rotating shaft to rotate. The adjusting block rises and falls along the outside of the rotating shaft, and slides along the inside of the slide groove. The telescopic rod and support rod rise and fall accordingly, driving the well cover to protect the entire oil well, improving the fixing effect of the oil well, effectively preventing objects from falling, and facilitating the adjustment and opening and closing of the well cover, improving the overall flexibility and practicality of the device. The above solution has the following drawbacks: the well cover is raised and lowered by a threaded rod, but the simple raising and lowering is inconvenient for personnel to enter and exit, and the well cover is inconvenient to install and disassemble, making it inconvenient to use.

[0004] Therefore, this application provides a wellhead protection device for oil drilling to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a wellhead protection device for oil drilling, which aims to solve the problems mentioned in the background art of existing devices that use threaded rods to lift and lower the well cover. However, the simple lifting and lowering method is inconvenient for personnel to enter and exit, and the well cover is inconvenient to install and disassemble, making it difficult to use.

[0006] To achieve the above objectives, this application provides the following technical solution: a wellhead protection device for oil drilling, including an oil wellhead, wherein a protective mechanism is provided on the outside of the oil wellhead;

[0007] Preferably, to address the problems of existing methods that use threaded rods to raise and lower manhole covers, which are simple but inconvenient for personnel to enter and exit, and for the manhole covers to be difficult to install and remove, the protective mechanism includes ground rails on both sides of the oil wellhead. Sliding blocks are slidably connected to the outside of the ground rails. A drive assembly is located on the side of each sliding block. A lifting frame is fixedly connected to the top of each sliding block. A servo motor is fixedly connected to the top of the lifting frame. A reciprocating screw is fixedly connected to the output end of the servo motor extending into the interior of the lifting frame. Lifting blocks are located outside the reciprocating screw. Protective covers are fixedly connected between the lifting blocks. The protective covers are in contact with the oil wellhead. The wellhead is matched, and the sliding block moves outside the ground rail through the drive component. The sliding block drives the lifting frame to move. The servo motor on the top of the lifting frame drives the reciprocating screw to rotate inside the lifting frame. The reciprocating screw is threadedly connected to the externally mounted lifting block, so that the lifting block is subjected to force and drives the limit blocks on both sides to slide inside the limit grooves opened on both sides of the lifting frame. This causes the lifting block to move the protective cover up and down. The protective cover covers the outside of the oil wellhead. The protective cover can protect the wellhead from damage caused by external forces and prevent external debris from falling into the well. The operation is simple and quick, and it is easy to install and disassemble.

[0008] Preferably, to address the issue of convenient movement of the lifting block, the reciprocating screw is threadedly connected to the lifting block, and limit blocks are fixedly connected to both sides of one end of the lifting block inside the lifting frame. Limiting grooves adapted to the limit blocks are provided on both sides of the lifting frame, and the limit blocks are disposed inside the limiting grooves and slidably connected to the limiting grooves. The reciprocating screw is threadedly connected to the lifting block, which allows the lifting block to slide within the limiting grooves under force, thereby facilitating the lifting of the lifting block and improving the stability of the lifting block's movement.

[0009] Preferably, in order to solve the problem of convenient use of the device, an electrical control box is fixedly connected to one side of the lifting frame. The electrical control box is equipped with an electrical control switch, which is electrically connected to the drive component and the servo motor. The operation of the drive component and the servo motor can be easily controlled through the electrical control switch inside the electrical control box, making operation convenient.

[0010] Preferably, to address the issue that the protective cover may deform under external forces after prolonged use, thus failing to protect the oil wellhead, mounting blocks are fixedly connected to both sides of the protective cover. The lifting block has a mounting groove adapted to the mounting block on its side near the protective cover. The mounting block is inserted into the mounting groove. A fixing rod is provided inside the mounting block, and a fixing groove adapted to the fixing rod is provided inside the mounting groove. The fixing rod is inserted into the fixing groove. The protective cover is lifted by a lifting ring at the top, and then the fixing rod is pressed, causing it to slide outside a limiting rod inside the mounting block. The fixing rod compresses a spring on its side, allowing it to enter the interior of the mounting block. The mounting blocks at both ends of the protective cover are then inserted into the mounting groove. The fixing rod, subjected to the spring's rebound force, engages with the fixing groove at the top of the mounting groove, facilitating the installation and removal of the protective cover. The operation is simple, quick, and convenient.

[0011] Preferably, in order to solve the problem of the stability of the fixed rod movement, a limiting rod is fixedly connected to both sides of the inner side of the mounting block. One end of the fixed rod is located inside the mounting block and outside the limiting rod. The fixed rod and the limiting rod are slidably connected. The fixed rod slides outside the limiting rod. By setting the limiting rod, the stability of the fixed rod movement can be improved.

[0012] Preferably, to address the issue of convenient operation of the fixing rod, a spring is provided inside the mounting block. The spring is fixedly connected between one end of the fixing rod located inside the mounting block and the interior of the mounting block. During the movement of the fixing rod, the spring on the side is compressed. Through the spring, the fixing rod can easily return to its original shape, facilitating operation.

[0013] Preferably, in order to solve the problem of easy installation of the protective cover, a lifting ring is fixedly connected at the center of the top of the protective cover, so that the protective cover can be easily lifted by the lifting ring, thereby facilitating installation.

[0014] This protective mechanism uses a drive component to move a sliding block outside the ground rail. The sliding block moves the lifting frame, and a servo motor on top of the lifting frame drives a reciprocating screw to rotate inside the lifting frame. The reciprocating screw is threadedly connected to the externally mounted lifting block, causing the lifting block to slide within the limiting grooves on both sides of the lifting frame under force. This causes the lifting block to move the protective cover up and down, covering the outside of the oil wellhead. The protective cover protects the wellhead from damage caused by external forces and prevents external debris from falling into the well. It is simple and quick to operate, easy to install and disassemble, and convenient to use.

[0015] This protective mechanism uses a lifting ring on the top of the cover to lift it up. Then, pressing the fixing rod causes it to slide outside the limiting rod inside the mounting block. The fixing rod compresses the spring on its side, allowing it to enter the mounting block. The mounting blocks at both ends of the cover are then inserted into the electrical mounting groove. The fixing rod, under the spring's rebound force, engages with the fixing groove at the top of the mounting groove, facilitating the installation and removal of the cover. The operation is simple, quick, and convenient. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a wellhead protection device for oil drilling;

[0017] Figure 2 A three-dimensional schematic diagram of a wellhead protection device for oil drilling;

[0018] Figure 3 A three-dimensional dynamic structural diagram of a wellhead protection device for oil drilling;

[0019] Figure 4 This is a schematic diagram of the main structure of a wellhead protection device for oil drilling.

[0020] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0021] In the picture:

[0022] 1. Oil wellhead; 2. Protective mechanism; 21. Ground rail; 22. Sliding block; 23. Drive assembly; 24. Lifting frame; 25. Servo motor; 26. Reciprocating screw; 27. Lifting block; 28. Protective cover; 29. ​​Limiting block; 30. Limiting groove; 31. Mounting block; 32. Mounting groove; 33. Fixing rod; 34. Fixing groove; 35. Limiting rod; 36. Spring; 37. Lifting ring; 38. Electrical control box; 39. Electrical control switch. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Example 1

[0025] This embodiment provides a wellhead protection device for oil drilling, such as... Figure 1-5As shown, the wellhead protection device for the oil drilling includes an oil wellhead 1, and a protective mechanism 2 is installed on the outside of the oil wellhead 1.

[0026] When in use, the protective mechanism 2 can protect the wellhead, preventing damage from external forces and preventing external debris from falling into the well. It is simple and quick to operate, easy to install and disassemble, and convenient to use.

[0027] Specifically, the protective mechanism 2 includes ground rails 21 set on both sides of the oil wellhead 1. A sliding block 22 is slidably connected to the outside of the ground rails 21. A drive assembly 23 is set on the side of the sliding block 22. A lifting frame 24 is fixedly connected to the top of the sliding block 22. A servo motor 25 is fixedly connected to the top of the lifting frame 24. A reciprocating screw 26 is fixedly connected to the inside of the lifting frame 24 from the output end of the servo motor 25. A lifting block 27 is set on the outside of the reciprocating screw 26. A protective cover 28 is fixedly connected between the lifting blocks 27. The protective cover 28 is adapted to the oil wellhead 1.

[0028] In use, the drive component 23 drives the sliding block 22 to move outside the ground rail 21, and the sliding block 22 drives the lifting frame 24 to move. The servo motor 25 set on the top of the lifting frame 24 drives the reciprocating screw 26 to rotate inside the lifting frame 24. The reciprocating screw 26 is threadedly connected to the lifting block 27 set on the outside, so that the lifting block 27 is subjected to force and drives the limit blocks 29 set on both sides to slide inside the limit grooves 30 opened on both sides of the lifting frame 24. This causes the lifting block 27 to drive the protective cover 28 to rise and fall. The protective cover 28 covers the outside of the oil wellhead 1. The protective cover 28 can protect the wellhead and prevent it from being damaged by external forces. It can also prevent external debris from falling into the well. The operation is simple and quick, and it is convenient to install and disassemble.

[0029] Furthermore, the reciprocating screw 26 is threadedly connected to the lifting block 27. The lifting block 27 is located inside the lifting frame 24, and limit blocks 29 are fixedly connected to both sides of one end. Limiting grooves 30 adapted to the limit blocks 29 are opened on both sides of the lifting frame 24. The limit blocks 29 are located inside the limit grooves 30 and are slidably connected to the limit grooves 30. The threaded connection between the reciprocating screw 26 and the lifting block 27 allows the lifting block 27 to be driven by force to slide the limit blocks 29 inside the limit grooves 30, thereby facilitating the lifting of the lifting block 27 and improving the stability of the movement of the lifting block 27.

[0030] Furthermore, an electrical control box 38 is fixedly connected to one side of the lifting frame 24. An electrical control switch 39 is installed inside the electrical control box 38. The electrical control switch 39 is electrically connected to the drive component 23 and the servo motor 25. The operation of the drive component 23 and the servo motor 25 can be easily controlled through the electrical control switch 39 installed inside the electrical control box 38, making operation convenient.

[0031] Example 2

[0032] Unlike Embodiment 1, the protective cover 28 may deform under external force after long-term use, which may lead to the inability to protect the oil wellhead 1. Therefore, mounting blocks 31 are fixedly connected to both sides of the protective cover 28. The lifting block 27 has a mounting groove 32 that matches the mounting block 31 on the side close to the protective cover 28. The mounting block 31 is inserted into the mounting groove 32. A fixing rod 33 is provided inside the mounting block 31. A fixing groove 34 that matches the fixing rod 33 is provided inside the mounting groove 32. The fixing rod 33 is inserted into the fixing groove 34.

[0033] In use, the protective cover 28 is lifted by the lifting ring 37 on the top of the protective cover 28, and then the fixing rod 33 is pressed, causing the fixing rod 33 to slide outside the limiting rod 35 set inside the mounting block 31. The fixing rod 33 compresses the spring 36 set on the side, so that the fixing rod 33 enters the interior of the mounting block 31. The mounting blocks 31 set at both ends of the protective cover 28 are inserted into the interior of the electrical mounting groove 32. The fixing rod 33 is subjected to the rebound force of the spring 36, so that the fixing rod 33 is inserted into the fixing groove 34 opened at the top of the mounting groove 32, thereby facilitating the installation and removal of the protective cover 28. The operation is simple and quick, and it is convenient to use.

[0034] Specifically, the mounting block 31 has a limiting rod 35 fixedly connected to both sides inside. The fixing rod 33 is located inside the mounting block 31, with one end located outside the limiting rod 35. The fixing rod 33 is slidably connected to the limiting rod 35, and the fixing rod 33 slides outside the limiting rod 35. The limiting rod 35 can improve the stability of the movement of the fixing rod 33.

[0035] Furthermore, a spring 36 is provided inside the mounting block 31. The spring 36 is fixedly connected between one end of the fixing rod 33 located inside the mounting block 31 and the inside of the mounting block 31. During the movement of the fixing rod 33, the spring 36 on the side will be compressed. Through the spring 36, the fixing rod 33 can be easily restored to its original state, which is convenient for operation.

[0036] The protective cover 28 is fixedly connected to a lifting ring 37 at the top center position, which can be used to easily lift the protective cover 28 for easy installation.

[0037] It should be noted that the drive component 23 and the servo motor 25 are existing devices, and their working principle, size and model are not related to the function of this application, so they will not be described in detail. The control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0038] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A wellhead protection device for oil drilling, comprising an oil wellhead (1), characterized in that, The oil wellhead (1) is provided with a protective mechanism (2) on its exterior. The protective mechanism (2) includes ground rails (21) set on both sides of the oil wellhead (1). A sliding block (22) is slidably connected to the outside of the ground rail (21). A drive assembly (23) is set on the side of the sliding block (22). A lifting frame (24) is fixedly connected to the top of the sliding block (22). A servo motor (25) is fixedly connected to the top of the lifting frame (24). A reciprocating screw (26) is fixedly connected to the output end of the servo motor (25) extending into the inside of the lifting frame (24). A lifting block (27) is set on the outside of the reciprocating screw (26). A protective cover (28) is fixedly connected between the lifting blocks (27). The protective cover (28) is adapted to the oil wellhead (1).

2. The wellhead protection device for oil drilling according to claim 1, characterized in that: The reciprocating screw (26) is threadedly connected to the lifting block (27). The lifting block (27) is located inside the lifting frame (24). Limiting blocks (29) are fixedly connected to both sides of one end. Limiting grooves (30) adapted to the limiting blocks (29) are opened on both sides of the lifting frame (24). The limiting blocks (29) are located inside the limiting grooves (30), and the limiting blocks (29) and the limiting grooves (30) are slidably connected.

3. The wellhead protection device for oil drilling according to claim 1, characterized in that: An electrical control box (38) is fixedly connected to one side of the lifting frame (24). An electrical control switch (39) is installed inside the electrical control box (38). The electrical control switch (39) is electrically connected to the drive assembly (23) and the servo motor (25).

4. The wellhead protection device for oil drilling according to claim 1, characterized in that: The protective cover (28) is fixedly connected to two sides of the mounting block (31). The lifting block (27) has a mounting groove (32) adapted to the mounting block (31) on the side near the protective cover (28). The mounting block (31) is inserted into the mounting groove (32). The mounting block (31) is provided with a fixing rod (33) inside. The mounting groove (32) is provided with a fixing groove (34) adapted to the fixing rod (33) inside. The fixing rod (33) is inserted into the fixing groove (34).

5. The wellhead protection device for oil drilling according to claim 4, characterized in that: Limiting rods (35) are fixedly connected to both sides of the interior of the mounting block (31). One end of the fixing rod (33) is located inside the mounting block (31) and is located outside the limiting rod (35). The fixing rod (33) and the limiting rod (35) are slidably connected.

6. The wellhead protection device for oil drilling according to claim 5, characterized in that: The mounting block (31) is provided with a spring (36) inside. The spring (36) is fixedly connected to one end of the fixing rod (33) located inside the mounting block (31) and the interior of the mounting block (31).

7. The wellhead protection device for oil drilling according to claim 4, characterized in that: A lifting ring (37) is fixedly connected at the top center of the protective cover (28).

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