A workover platform for oil workover rigs

By designing a foldable well workover platform structure, the problems of large volume and high transportation costs in existing technologies have been solved, achieving convenient transportation and simplified operation.

CN224478890UActive Publication Date: 2026-07-10QINGDAO ZHONGRUI WEIFEI MARINE EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO ZHONGRUI WEIFEI MARINE EQUIPMENT CO LTD
Filing Date
2025-05-19
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing oil well workover platforms take up a large volume during disassembly and transportation, increasing transportation costs and making operations cumbersome. Furthermore, protecting small components is time-consuming and labor-intensive.

Method used

Design a foldable well workover platform structure, including a fixed lug, a floating platform, a main platform, a fixed lug plate, a connecting lug, a hinge lug, and a platform mounting plate. The main platform and the floating platform are connected by the hinge lug. The platform can be folded and fixed on a vehicle-mounted derrick, reducing the width dimension and enabling convenient transportation.

Benefits of technology

This allows for transport by fixing the equipment to the vehicle-mounted derrick without disassembly, reducing transportation costs, simplifying the operation process, and improving transportation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A well-workover platform for oil well-workover rigs relates to the technical field of oil well-workover rig supporting equipment. The well-workover platform includes fixed lugs, a floating platform, a main platform, fixed lug plates, connecting lugs, hinge lugs, supporting lugs, and a platform hanging plate. The floating platforms are symmetrically arranged on the left and right sides of the main platform. Fixed lugs are provided at the bottom of the floating platforms. Two fixed lugs are provided on the front side of the main platform, and two connecting lugs are provided on the rear side of the main platform. The platform hanging plate is welded to the derrick, and the supporting lugs are installed on the platform hanging plate. This utility model provides a simple foldable well-workover platform structure that can be fixed to a vehicle-mounted derrick without disassembly. By folding and fixing the well-workover platform to the vehicle-mounted derrick, the width dimension is reduced, saving costs during transportation.
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Description

Technical Field

[0001] This utility model relates to the technical field of oil well workover rig supporting equipment, specifically to a well workover platform for an oil well workover rig. Background Technology

[0002] A well workover platform is a crucial component in oil drilling and workover operations. It's a specialized piece of equipment designed for oil well maintenance, providing necessary working and storage space for personnel and equipment. Its tasks include clearing blockages in the well, repairing damaged tubing, replacing downhole tools, and handling oil spills. Oil workover platforms are mounted on a vehicle-mounted derrick. Because work sites frequently change, the platform needs frequent installation and removal. Existing workover platform equipment has two main drawbacks: first, removing the platform takes up significant space, requiring permits for oversized transport and additional vehicles, increasing transportation costs; second, securing and protecting small components after removal is cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a well workover platform for oil well workover rigs, which can solve the above technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A well workover platform for an oil well workover rig includes a fixed lug, a floating platform, a main platform, a fixed lug plate, a connecting lug, a hinge lug, a support lug, and a platform mounting plate. The floating platform is symmetrically arranged on the left and right sides of the main platform. The bottom of the floating platform is provided with a fixed lug. Two fixed lugs are provided on the front side of the main platform, and two connecting lugs are provided on the rear side of the main platform. The platform mounting plate is welded to the derrick, and the support lug is installed on the platform mounting plate.

[0006] Preferably, the main platform and the floating platform are connected by hinge lugs, which are located at both ends of the main platform and the floating platform.

[0007] Preferably, the well repair platform is equipped with railings on all four sides of its top, and the railings are detachably connected to the well repair platform.

[0008] Preferably, the well repair platform is provided with ladder openings on both sides, and the well repair platform and the ladder are connected by ladder lugs. The ladder lugs are fixed to the outer edge of the platform. After the well repair platform is folded, the ladder lugs and the fixed lugs are connected by shell pins.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a simple structure that can be fixed on the vehicle-mounted derrick without disassembly. By folding and fixing the derrick to the vehicle-mounted derrick, the width dimension of the derrick is reduced, thus saving costs during transportation. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0011] Figure 1 This is a schematic diagram of the well repair platform structure of this utility model;

[0012] Figure 2 This is a schematic diagram showing the connection between the well workover platform and the derrick of this utility model;

[0013] Figure 3 This is a diagram showing the folded state of the well repair platform of this utility model;

[0014] Figure 4 This is a diagram showing the state of the well repair platform during transportation according to this utility model.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1-Fixed ear bracket, 2-Floating platform, 3-Main platform, 4-Fixed ear plate, 5-Connecting ear bracket, 6-Hinge ear bracket, 7-Supporting ear bracket, 8-Platform hanging plate, 9-Baluster, 10-Ladder ear plate. Detailed Implementation

[0017] The invention will now be described in detail with reference to the accompanying drawings, by way of example. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Example

[0018] like Figures 1 to 4As shown, this utility model discloses a well-workover platform for an oil well-workover rig. The well-workover platform includes a fixed lug 1, a floating platform 2, a main platform 3, a fixed lug 4, a connecting lug 5, a hinge lug 6, a supporting lug 7, and a platform hanging plate 8. The floating platforms 2 are symmetrically arranged on the left and right sides of the main platform 3, with the main platform 3 in the middle, serving as the main load-bearing and connecting components. The two floating platforms 2 are located on the left and right sides of the main platform 3 to increase the usable area of ​​the platform and ensure sufficient working space for personnel and equipment. The main platform 3 and the floating platforms 2 are connected by hinge lugs 6. The hinge lugs 6 are located at both ends of the main platform 3 and the floating platforms 2 to ensure the overall flatness of the platform surface. The hinge lugs 6 are placed on the platform, utilizing the thickness of the platform itself. The pins on the hinge lugs 6 are the rotation axes, and the platform 6 contacts the sides of the main platform 3 and the floating platforms 2 to provide support for the floating platform. Platform 2 provides support, enabling the entire platform to be level without the need for other structures. The bottom of platform 2 is equipped with a fixed lug 1, and the front side of the main platform 3 has two fixed lugs 4 for securing the folded platform. The rear side of the main platform 3 has two connecting lugs 5. The platform mounting plate 8 is welded to the derrick. During normal operation, the connecting lugs 5 connect the platform to the platform mounting plate 8, allowing the platform mounting plate 8 to support the platform. The support lugs 7 are installed on the platform mounting plate 8 and are used to support the folded platform during transportation. The folded platform first connects to the support lugs 7 via its own connecting lugs 5, and then connects to the platform mounting plate 8 via the fixed lugs 1, thus securing the platform to the derrick. When the work location needs to be changed, the derrick and platform are transported together. This structure achieves convenient operation, structural optimization, and reduced transportation costs.

[0019] Furthermore, in this embodiment, railings 9 are provided around the top of the well repair platform, and the railings 9 are detachably connected to the well repair platform.

[0020] Furthermore, in this embodiment, ladder openings are provided on both sides of the well repair platform. The well repair platform and the ladder are connected by ladder lugs 10. The ladder lugs 10 are fixed to the outer edge of the platform 2. After the well repair platform is folded, the ladder lugs 10 and the fixed lugs 4 are connected by shell pins, thereby achieving the purpose of fixing the platform 2.

[0021] Working principle: When it is necessary to change the work site, the well repair platform first needs to remove the railing 9 on the platform. Then, with the center line of the pin on the hinge ear seat 6 as the pivot, the floating platform 2 is folded inward by 180°. The floating platform 2 of the well repair platform has ear plates for installing ladders. The ladder ear plate 10 and the fixing ear plate 4 are connected by shell pins to fix the two floating platforms 2 on the folded platform.

[0022] A support lug 7 is installed at the bottom of the platform mounting plate 8 on the derrick. The folded platform is connected to the bottom of the platform mounting plate 8 via the connecting lug 5 and the support lug 7. The folded well repair platform is folded upwards by 90° with the axis of the shell pin at the connection point as the pivot. After the platform is folded, it is fixed to the platform mounting plate 8 on the derrick by inserting the shell pin through its own fixing lug 1.

[0023] The vehicle-mounted derrick is placed at the rear of the vehicle. When moving to a new work site, the bolts used for fixing it are removed, and the derrick is tilted and fixed in the direction of the front of the vehicle by rotating the shaft.

[0024] 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 application concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A well workover platform for an oil well workover rig, characterized in that: The well repair platform includes a fixed lug (1), a floating platform (2), a main platform (3), a fixed lug plate (4), a connecting lug (5), a hinge lug (6), a support lug (7), and a platform hanging plate (8). The floating platform (2) is symmetrically arranged on the left and right sides of the main platform (3). The bottom of the floating platform (2) is provided with a fixed lug (1). The front side of the main platform (3) is provided with two fixed lug plates (4). The rear side of the main platform (3) is provided with two connecting lugs (5). The platform hanging plate (8) is welded to the derrick. The support lug (7) is installed on the platform hanging plate (8).

2. The well workover platform for an oil well workover rig as described in claim 1, characterized in that: The main platform (3) and the floating platform (2) are connected by a hinge ear (6), which is located at both ends of the main platform (3) and the floating platform (2).

3. The well workover platform for an oil well workover rig as described in claim 1, characterized in that: The well repair platform is equipped with railings (9) around its top, and the railings (9) are detachably connected to the well repair platform.

4. The well workover platform for an oil well workover rig as described in claim 1, characterized in that: The well repair platform is provided with ladder openings on both sides. The well repair platform and the ladder are connected by ladder ear plates (10). The ladder ear plates (10) are fixed on the outer edge of the floating platform (2). After the well repair platform is folded, the ladder ear plates (10) and the fixed ear plates (4) are connected by shell pins.