Safety platform for underground operation in oil field

By installing an adjustable bidirectional screw and hydraulic cylinder system on the downhole operating platform, the problem of the platform being fixed and unable to be expanded was solved, thus improving the platform's flexibility, adaptability, and safety.

CN224147680UActive Publication Date: 2026-04-21SHAANXI YANAN GUOTAO ENGINEERING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI YANAN GUOTAO ENGINEERING TECHNOLOGY CO LTD
Filing Date
2025-06-06
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing downhole operation platform has a fixed platform size, which cannot be appropriately expanded according to needs, resulting in limited use.

Method used

A safety platform for downhole operations in oilfields has been designed, comprising a lifting support and a working platform. By setting a bidirectional screw and drive assembly on the main body, the auxiliary plate body is allowed to extend to both sides along the main body. The height is adjusted by hydraulic cylinders, and anti-slip plates are provided to improve safety.

Benefits of technology

The adjustable size of the work platform reduces usage limitations and improves safety and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an oil field underground operation safety platform, which relates to the technical field of operation platforms and is characterized by comprising a lifting support and an operation platform, the operation platform is fixedly mounted on the lifting support and comprises a main plate body fixedly mounted on the lifting support and auxiliary plate bodies slidably mounted on two sides of the main plate body, and the main plate body is fixedly mounted on the lifting support. A two-way screw rod is rotationally installed in the main plate body, the two ends of the two-way screw rod stretch into the two auxiliary plate bodies correspondingly and are in threaded connection with the side walls of the auxiliary plate bodies, and a driving assembly used for driving the two-way screw rod to rotate is arranged in the main plate body. The working platform has the technical effects that by arranging the working platform, the size of the working platform can be adjusted during working, proper expansion and extension can be conveniently carried out according to requirements, and the situation that use is limited is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of work platform technology, specifically to a safety platform for oilfield downhole operations. Background Technology

[0002] During oilfield development, based on the needs of oilfield adjustment, modification, improvement, and potential tapping, and in accordance with process design requirements, a set of surface and downhole equipment and tools are used to implement various downhole technical measures on oil and water wells to achieve the goals of increasing injection and production rates, improving reservoir seepage conditions and the technical condition of oil and water wells, and ultimately increasing oil production rate and recovery rate. This series of downhole construction techniques is collectively referred to as downhole operations. During downhole operations, a safe operating platform is required to assist personnel in their work.

[0003] Chinese Patent CN209635809U discloses a safe downhole lifting platform, including a support frame, an outer support frame arm, an inner support frame arm, a longitudinal hydraulic cylinder, a transverse hydraulic rod, an operating platform, and a threaded rod. The support frame has sliding grooves on both sides inside and on both sides of the bottom of the operating platform. The top of the outer support frame arm is movably connected to one end of the bottom of the operating platform, and the bottom of the outer support frame arm is slidably connected to the sliding groove of the support frame. The bottom of the inner support frame arm is movably connected to one end of the inner side of the support frame, and the top of the inner support frame arm is slidably connected to the sliding groove of the operating platform. The outer support frame arm is movably connected at its inner center and the inner support frame arm at its outer center. One end of the transverse hydraulic rod is movably connected to the bottom center of the inner support frame arm via a hinge seat, and the other end is movably connected to the bottom center of the outer support frame arm via a hinge seat. The bottom ends of the two longitudinal hydraulic cylinders are movably connected to both sides of the bottom end of the outer support frame arm via hinge seats, and their top ends are movably connected to the inner side of the inner support frame arm. Support plates are installed around the outer perimeter of the support frame. A threaded sleeve is installed at the center of the support plate. The threaded rod passes through the threaded sleeve and is installed with a support seat below the support plate.

[0004] Regarding the aforementioned technologies, the inventors have discovered at least the following problems: the existing operating platform has a fixed table size, which cannot be appropriately expanded according to needs, resulting in frequent limitations in its use.

[0005] Therefore, we propose a safety platform for oilfield downhole operations. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In response to the shortcomings of existing technologies, this utility model provides a safety platform for downhole operations in oil fields, which solves the problem that existing operating platforms have a fixed platform size and cannot be appropriately expanded and extended according to needs, resulting in frequent limitations in their use.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: an oilfield downhole operation safety platform, including a lifting support and an operation platform, wherein the operation platform is fixedly installed on the lifting support, and the operation platform includes a main plate body fixedly installed on the lifting support and a secondary plate body slidably installed on both sides of the main plate body;

[0010] The main body has a bidirectional screw rotatably mounted inside it. The two ends of the bidirectional screw extend into the two sub-plate bodies respectively and are threadedly connected to the side walls of the sub-plate bodies. The main body is provided with a drive assembly for driving the bidirectional screw to rotate.

[0011] Preferably, the drive assembly includes a motor fixedly mounted in the motherboard body, a worm gear fixedly connected to the output end of the motor, and a worm wheel meshing with the worm gear fixedly connected to the middle of the bidirectional screw.

[0012] Preferably, a bearing seat is fixedly connected inside the main body, and the bidirectional screw is rotatably mounted on the bearing seat.

[0013] Preferably, limit rods are fixedly installed on both sides of the main body, and the two ends of the limit rods extend into the two sub-plate bodies and slide to connect with the side walls of the sub-plate bodies.

[0014] Preferably, both ends of the limiting rod are fixedly equipped with detachable limiting blocks.

[0015] Preferably, a sliding groove is provided on the inner side wall of the main plate, and sliders that slide in cooperation with the sliding groove are provided on both sides of the sub-plate.

[0016] Preferably, a detachable anti-slip plate is fixedly installed on the top of both the main board and the sub-board.

[0017] Preferably, the lifting support includes four hydraulic cylinders arranged in a matrix, the piston ends of the hydraulic cylinders are fixedly connected to the four corners of the main body, and connecting rods are fixedly installed between adjacent hydraulic cylinders.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a method with the following beneficial effects:

[0020] 1. This utility model, by setting up a working platform, allows the drive assembly to be activated during operation, driving the bidirectional screw to rotate. The bidirectional screw then drives two auxiliary plates to extend to both sides along the main plate, thereby adjusting the size of the working platform. This facilitates appropriate expansion and extension according to needs, reducing the occurrence of usage limitations.

[0021] 2. By incorporating anti-slip plates, this utility model can improve the anti-slip effect on the surfaces of the main plate and the sub-plate, thereby enhancing the safety of the work platform. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the working platform of this utility model;

[0024] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0025] In the picture:

[0026] 1. Lifting support; 11. Hydraulic cylinder; 12. Connecting rod;

[0027] 2. Working platform; 21. Main board; 22. Sub-board; 23. Bidirectional screw; 24. Drive assembly; 241. Motor; 242. Worm gear; 243. Worm wheel; 25. Shaft seat; 26. Limit rod; 27. Limit block; 28. Slide groove; 29. ​​Slider; 210. Anti-slip plate. Detailed Implementation

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] This utility model provides a technical solution:

[0030] Please see Figures 1-3 The oilfield downhole operation safety platform includes a lifting support 1 and an operating platform 2. The operating platform 2 is fixedly installed on the lifting support 1. The operating platform 2 includes a main plate 21 fixedly installed on the lifting support 1 and auxiliary plates 22 slidably installed on both sides of the main plate 21. The lifting support 1 includes four hydraulic cylinders 11 arranged in a matrix. The piston end of the hydraulic cylinder 11 is fixedly connected to the four corners of the main plate 21. Connecting rods 12 are fixedly installed between adjacent hydraulic cylinders 11. By setting up the lifting support 1, the hydraulic cylinders 11 can be activated to drive the main plate 21 to rise and fall, thereby adjusting the height of the operating platform 2.

[0031] Reference Figures 1-3A bidirectional screw 23 is rotatably mounted inside the main body 21, and a bearing 25 is fixedly connected inside the main body 21. The bidirectional screw 23 is rotatably mounted on the bearing 25, and both ends of the bidirectional screw 23 extend into the two sub-plates 22 respectively and are threadedly connected to the side walls of the sub-plates 22. A drive assembly 24 for driving the bidirectional screw 23 to rotate is provided inside the main body 21. By setting up the work platform 2, the drive assembly 24 can be activated to drive the bidirectional screw 23 to rotate during operation. The bidirectional screw 23 drives the two sub-plates 22 to extend to both sides along the main body 21, thereby adjusting the size of the work platform 2, which can be conveniently extended according to needs and reduce the occurrence of usage restrictions.

[0032] Specifically, the drive assembly 24 includes a motor 241 fixedly installed inside the main body 21. A worm gear 242 is fixedly connected to the output end of the motor 241. A worm wheel 243 that meshes with the worm gear 242 is fixedly connected to the middle of the bidirectional screw 23. By setting the drive assembly 24, the motor 241 can be started to drive the worm gear 242 to rotate, which in turn drives the worm wheel 243 to rotate, and the worm wheel 243 in turn drives the bidirectional screw 23 to rotate.

[0033] Furthermore, limit rods 26 are fixedly installed on both sides inside the main body 21. The two ends of the limit rods 26 extend into the two sub-plates 22 respectively and slide to connect with the side walls of the sub-plates 22. By setting the limit rods 26, the sub-plates 22 can be guided and limited, thereby improving the stability of the sub-plates 22.

[0034] Furthermore, detachable limiting blocks 27 are fixedly installed at both ends of the limiting rod 26. By setting the limiting blocks 27, the sub-plate 22 can be limited, preventing the sub-plate 22 from detaching from the end of the limiting rod 26. When it is necessary to separate the sub-plate 22 and the main plate 1, the limiting blocks 27 can be removed first, and the sub-plate 22 can be slid off the limiting rod 26.

[0035] Furthermore, a groove 28 is provided on the inner side wall of the main plate 21, and sliders 29 that slide in cooperation with the groove 28 are provided on both sides of the sub-plate 22. By providing the groove 28 and sliders 29, the sliders 29 can slide along the groove 28 during the sliding process of the sub-plate 22, which plays a sliding guiding role for the sub-plate 22 and further improves the stability of the sub-plate 22.

[0036] Furthermore, a detachable anti-slip plate 210 is fixedly installed on the top of both the main board 21 and the sub-board 22. By setting the anti-slip plate 210, the anti-slip effect of the surface of the main board 21 and the sub-board 22 can be improved, thereby improving the safety of the work platform 2.

[0037] In practical use, the working principle of this utility model is as follows:

[0038] First, during operation, the hydraulic cylinder 11 can be activated to drive the main body 21 to rise and fall, thereby adjusting the height of the work platform 2.

[0039] When the size of the work platform 2 needs to be adjusted, the motor 241 can be started to drive the worm gear 242 to rotate, which in turn drives the worm wheel 243 to rotate, which in turn drives the bidirectional screw 23 to rotate. The bidirectional screw 23 then drives the two auxiliary plates 22 to extend to both sides along the main plate 21, thereby adjusting the size of the work platform 2. This allows for appropriate expansion and extension as needed, reducing the occurrence of usage limitations.

[0040] To improve the safety of the work platform 2, an anti-slip plate 210 is installed, which can improve the anti-slip effect on the surfaces of the main plate 21 and the secondary plate 22.

[0041] In summary, this oilfield downhole operation safety platform, by setting up operation platform 2, allows for adjustment of the size of operation platform 2 during operation, facilitating appropriate expansion and extension according to needs and reducing the occurrence of usage limitations.

[0042] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A safety platform for downhole operations in oil and gas wells, comprising a lifting support (1) and an operating platform (2), characterised in that: The work platform (2) is fixedly installed on the lifting bracket (1). The work platform (2) includes a main board body (21) fixedly installed on the lifting bracket (1) and a secondary board body (22) slidably installed on both sides of the main board body (21). The main body (21) is rotatably mounted with a bidirectional screw (23). The two ends of the bidirectional screw (23) extend into the two sub-plates (22) respectively and are threadedly connected to the side walls of the sub-plates (22). The main body (21) is provided with a drive assembly (24) for driving the bidirectional screw (23) to rotate.

2. The oilfield downhole operation safety platform of claim 1, wherein: The drive assembly (24) includes a motor (241) fixedly installed in the main body (21), the output end of the motor (241) is fixedly connected to a worm (242), and the middle part of the bidirectional screw (23) is fixedly connected to a worm wheel (243) that meshes with the worm (242).

3. The oilfield downhole operation safety platform of claim 1, wherein: The main body (21) is internally fixedly connected to a bearing seat (25), and the bidirectional screw (23) is rotatably mounted on the bearing seat (25).

4. The oilfield downhole operation safety platform of claim 1, wherein: Limiting rods (26) are fixedly installed on both sides inside the main body (21). The two ends of the limiting rods (26) extend into the two sub-plates (22) and slide to connect with the side walls of the sub-plates (22).

5. The oilfield downhole operation safety platform of claim 4, wherein: Both ends of the limiting rod (26) are fixedly equipped with detachable limiting blocks (27).

6. The oilfield downhole operation safety platform of claim 1, wherein: The inner wall of the main plate (21) is provided with a sliding groove (28), and both sides of the sub-plate (22) are provided with sliders (29) that slide in cooperation with the sliding groove (28).

7. The oilfield downhole operation safety platform of claim 1, wherein: The top of both the main board (21) and the sub-board (22) is fixedly equipped with a detachable anti-slip plate (210).

8. The oilfield downhole operation safety platform of claim 1, wherein: The lifting bracket (1) includes four hydraulic cylinders (11) arranged in a matrix. The piston end of the hydraulic cylinder (11) is fixedly connected to the four corners of the main body (21). A connecting rod (12) is fixedly installed between adjacent hydraulic cylinders (11).

Citation Information

Patent Citations

  • Safety type lifting platform for downhole operation

    CN209635809U