Vehicle-mounted workover rig for oil field workover operation

Abstract

The vehicle-mounted workover rig comprises a vehicle-mounted workover rig body, the upper end face of the vehicle-mounted workover rig body is fixedly connected with a hollow bottom plate, the front portion and the rear portion of the hollow bottom plate are each provided with a movable push plate, the lower end faces of the movable push plates are fixedly connected with two U-shaped frames, and pressing mechanisms are arranged in the U-shaped frames. Two movable sliding plates are slidably connected into the hollow bottom plate, two connecting plates are fixedly connected to one faces of the movable sliding plates, the connecting plates penetrate through the hollow bottom plate and are slidably connected with the penetrating portions, and one end of each connecting plate is fixedly connected with the corresponding movable push plate. According to the vehicle-mounted workover rig for oil field workover operation, the supporting area of the vehicle body of the vehicle-mounted workover rig body can be increased when the vehicle-mounted workover rig body is parked, so that the parking stability of the vehicle-mounted workover rig body can be improved, a derrick can be conveniently used, and the vehicle-mounted workover rig is practical.

Description

Technical Field

[0001] The utility model relates to the technical field of workover rigs, in particular to a vehicle-mounted workover rig for oilfield workover operations. Background Art

[0002] A workover rig is a specialized piece of machinery used to repair tubing or wellbore in oilfields. It is primarily used for lifting and lowering tubing, sucker rods, and pumps. Electric workover rigs are now available on the market, replacing diesel engines as their primary power source. These rigs consist of a body, derrick, winch, and power distribution cabinet.

[0003] The existing tire-type workover rigs on the market are usually supported by the vehicle body after being moved to the oil wellhead. However, the overall width of the vehicle body is fixed and cannot be adjusted. Therefore, the vehicle body may be unstable during operation, which may easily lead to danger. Therefore, we propose a vehicle-mounted workover rig for oilfield workover operations. Utility Model Content

[0004] The utility model provides a vehicle-mounted workover machine for oilfield workover operations, which solves the technical problems raised by the background technology in the prior art.

[0005] The solution of the utility model to solve the above technical problems is as follows: it includes a vehicle-mounted well repair machine body, the upper end face of the vehicle-mounted well repair machine body is fixedly connected with a hollow bottom plate, and the front and rear ends of the hollow bottom plate are both provided with movable push plates, and the lower end face of the movable push plate is fixedly connected with two U-shaped frames, and a pressing mechanism is provided inside the U-shaped frame. The interior of the hollow bottom plate is slidably connected to two movable slides, and one side of the movable slide is fixedly connected to two connecting plates, the connecting plate passes through the hollow bottom plate and is slidably connected to the passing part. One end of each connecting plate is fixedly connected to the corresponding movable push plate. A two-way screw rod is provided inside the hollow bottom plate, the two-way screw rod passes through the two movable slides and is threadedly connected to the passing part, and both ends of the two-way screw rod are rotatably connected to the inside of the hollow bottom plate through bearings, and the two-way screw rod is connected to the hollow bottom plate through a rotating mechanism, and two limiting rods are provided on both sides of the two-way screw rod, and the limiting rod two passes through the two movable slides and is slidably connected to the passing part.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, a winch, a power distribution cabinet and a power supply are fixedly connected to the upper end surface of the hollow bottom plate, and a derrick is provided at the upper end of the vehicle-mounted workover rig body.

[0008] Furthermore, the pressing mechanism includes a limiting pressure plate arranged at the lower end of the U-shaped frame, and the lower end surface of the limiting pressure plate is fixedly connected to an anti-slip pad.

[0009] Furthermore, a hydraulic rod is fixedly connected to the middle of the U-shaped frame, and the piston rod of the hydraulic rod passes through the U-shaped frame and is slidably connected to the passing portion.

[0010] Furthermore, one end of the piston rod of the hydraulic rod is fixedly connected to the upper end surface of the limiting pressure plate, and a limiting rod is provided on both the left and right sides of the hydraulic rod. The limiting rod passes through the U-shaped frame and is slidably connected to the passing part, and a lower end of the limiting rod is fixedly connected to the upper end surface of the limiting pressure plate.

[0011] Furthermore, the rotating mechanism includes a servo motor fixedly connected to the upper end surface of the hollow bottom plate, and an output end of the servo motor is fixedly connected to a rotating rod that penetrates the hollow bottom plate and is rotatably connected to the penetrating portion.

[0012] Furthermore, one end of the rotating rod is fixedly connected to a worm, one side of the worm is meshedly connected to a worm wheel, and the inner surface of the worm wheel is fixedly connected to the outer surface of the bidirectional lead screw.

[0013] The beneficial effects of the utility model are as follows: the utility model provides a vehicle-mounted workover rig for oilfield workover operations, which has the following advantages:

[0014] By cooperating among the hollow bottom plate, movable push plate, U-shaped frame, pressing mechanism, bidirectional screw rod, second limit rod, rotating mechanism, movable slide plate and connecting plate, the supporting area of ​​the vehicle-mounted workover rig body can be increased when the vehicle-mounted workover rig body is parked, thereby improving the stability of the vehicle-mounted workover rig body when parked, facilitating the use of the derrick and improving practicality.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of a vehicle-mounted workover rig for oilfield workover operations provided by one embodiment of the utility model;

[0018] Figure 2 for Figure 1 A schematic cross-sectional view of a local structure of a vehicle-mounted workover rig for oilfield workover operations is provided;

[0019] Figure 3 for Figure 1 A schematic cross-sectional view of a local structure of a vehicle-mounted workover rig for oilfield workover operations is provided;

[0020] Figure 4 for Figure 1 Provided is a schematic top view and cross-sectional view of the structure of a hollow bottom plate of a vehicle-mounted workover rig for oilfield workover operations.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Vehicle-mounted workover rig body; 2. Derrick; 3. Hollow bottom plate; 4. Moving push plate; 5. Servo motor; 6. U-shaped frame; 7. Limit rod 1; 8. Hydraulic rod; 9. Limit pressure plate; 10. Anti-slip pad; 11. Moving slide; 12. Limit rod 2; 13. Worm gear; 14. Bidirectional lead screw; 15. Worm; 16. Connecting plate. DETAILED DESCRIPTION

[0023] The following is combined with Figures 1-4 The principles and features of the present invention are described, and the examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figures 1-4As shown, the utility model provides a vehicle-mounted workover rig for oilfield workover operations, including a vehicle-mounted workover rig body 1, the upper end surface of the vehicle-mounted workover rig body 1 is fixedly connected to a hollow bottom plate 3, the front and rear ends of the hollow bottom plate 3 are both provided with movable push plates 4, the lower end surface of the movable push plates 4 is fixedly connected to two U-shaped frames 6, a pressing mechanism is provided inside the U-shaped frame 6, the interior of the hollow bottom plate 3 is slidably connected to two movable slides 11, one side of the movable slide 11 is fixedly connected to two connecting plates 16, the connecting plates 16 pass through the hollow bottom plate 3 and slide with the penetrating portion Dynamic connection, one end of each connecting plate 16 is fixedly connected to the corresponding movable push plate 4, and a bidirectional screw rod 14 is provided inside the hollow bottom plate 3. The bidirectional screw rod 14 passes through the two movable slides 11 and is threadedly connected to the penetrating portion. Both ends of the bidirectional screw rod 14 are rotatably connected to the inside of the hollow bottom plate 3 through bearings. The bidirectional screw rod 14 is connected to the hollow bottom plate 3 through a rotating mechanism. Limit rods 12 are provided on both sides of the bidirectional screw rod 14. The limit rods 12 pass through the two movable slides 11 and are slidably connected to the penetrating portion.

[0027] Preferably, a winch, a power distribution cabinet and a power supply are fixedly connected to the upper end surface of the hollow bottom plate 3, and a derrick 2 is provided at the upper end of the vehicle-mounted workover rig body 1.

[0028] Preferably, the pressing mechanism includes a limiting pressure plate 9 arranged at the lower end of the U-shaped frame 6, and the lower end surface of the limiting pressure plate 9 is fixedly connected to an anti-slip pad 10. The setting of the anti-slip pad 10 can improve the anti-slip performance of the limiting pressure plate 9 when it contacts the ground.

[0029] Preferably, a hydraulic rod 8 is fixedly connected to the middle of the U-shaped frame 6, and the piston rod of the hydraulic rod 8 passes through the U-shaped frame 6 and is slidably connected to the passing portion. The setting of the hydraulic rod 8 can drive the limiting pressure plate 9 to move up and down.

[0030] Preferably, one end of the piston rod of the hydraulic rod 8 is fixedly connected to the upper end surface of the limiting pressure plate 9, and a limiting rod 7 is provided on both the left and right sides of the hydraulic rod 8. The limiting rod 7 passes through the U-shaped frame 6 and is slidably connected to the passing part. The lower end of the limiting rod 7 is fixedly connected to the upper end surface of the limiting pressure plate 9. The setting of the limiting rod 7 can improve the stability of the limiting pressure plate 9 when it is raised and lowered.

[0031] Preferably, the rotating mechanism includes a servo motor 5 fixedly connected to the upper end surface of the hollow bottom plate 3, and an output end of the servo motor 5 is fixedly connected to a rotating rod that penetrates the hollow bottom plate 3 and is rotatably connected to the penetrating portion.

[0032] Preferably, one end of the rotating rod is fixedly connected to a worm 15 , one side of the worm 15 is meshedly connected to a worm wheel 13 , and the inner surface of the worm wheel 13 is fixedly connected to the outer surface of the bidirectional screw 14 .

[0033] The specific working principle and use method of the utility model are as follows:

[0034] The utility model provides a kind of vehicle-mounted workover rig of oilfield workover operation, when using, when vehicle-mounted workover rig body 1 is parked, by the control servo motor 5 start, make servo motor 5 rotate dry part drive worm 15 rotation, make worm 15 rotation make worm gear 13 rotate, to make worm gear 13 drive bidirectional screw rod 14 rotation, by the rotation of bidirectional screw rod 14 can make two mobile slide plates 11 reverse motion, then by the effect of connecting plate 16, push mobile push plate 4 moves, make two mobile push plate 4 all move towards the direction of far from vehicle body, when maximum limit is moved, by respectively control multiple hydraulic rod 8, make hydraulic rod 8 drive limit pressing plate 9 descend, make multiple limit pressing plate 9 all press on ground, to can increase the support width of vehicle-mounted workover rig body 1, to can improve the stability of vehicle-mounted workover rig body 1 when parking, to facilitate derrick 2 use.

[0035] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form; any ordinary technical personnel in the industry can implement the utility model according to the drawings and the above description; however, any equivalent changes, modifications and evolutions made by skilled professionals within the scope of the technical scheme of the utility model, using the disclosed technical content, are equivalent embodiments of the utility model; at the same time, any equivalent changes, modifications and evolutions made according to the essential technology of the utility model to the above embodiments are still within the protection scope of the technical scheme of the utility model.

Claims

1. A truck-mounted workover rig for oilfield workover operations, comprising a truck-mounted workover rig body (1), characterized in that The upper end surface of the vehicle-mounted well repair machine body (1) is fixedly connected with a hollow bottom plate (3), and the front and rear of the hollow bottom plate (3) are provided with movable push plates (4), the lower end surface of the movable push plate (4) is fixedly connected with two U-shaped frames (6), the inside of the U-shaped frame (6) is provided with a pressing mechanism, the inside of the hollow bottom plate (3) is slidably connected with two movable sliding plates (11), one side of the movable sliding plate (11) is fixedly connected with two connecting plates (16), the connecting plate (16) penetrates through the hollow bottom plate (3) and is slidably connected with the penetrating part, one end of each connecting plate (16) is fixedly connected with the corresponding movable push plate (4), the inside of the hollow bottom plate (3) is provided with a bidirectional screw rod (14), the bidirectional screw rod (14) penetrates through the two movable sliding plates (11) and is threadedly connected with the penetrating part, the two ends of the bidirectional screw rod (14) are rotatably connected with the inside of the hollow bottom plate (3) through bearings, the bidirectional screw rod (14) is connected with the hollow bottom plate (3) through a rotating mechanism, and the two sides of the bidirectional screw rod (14) are provided with limit rods two (12) which penetrate through the two movable sliding plates (11) and are slidably connected with the penetrating part.

2. The truck-mounted workover rig for oilfield workover operations of claim 1, wherein, The upper end surface of the hollow bottom plate (3) is fixedly connected with a winch, a power distribution cabinet and a power supply, and the upper end of the vehicle-mounted well repair machine body (1) is provided with a derrick (2).

3. The truck-mounted workover rig for oilfield workover operations of claim 1, wherein, The pressing mechanism comprises a limiting pressing plate (9) arranged at the lower end of the U-shaped frame (6), and the lower end surface of the limiting pressing plate (9) is fixedly connected with an anti-skid pad (10).

4. The truck-mounted workover rig for oilfield workover operations of claim 3, wherein, The inside of the U-shaped frame (6) is fixedly connected with a hydraulic rod (8) at the middle, the piston rod of the hydraulic rod (8) penetrates through the U-shaped frame (6) and is slidably connected with the penetrating part.

5. The truck-mounted workover rig for oilfield workover operations of claim 4, wherein, One end of the piston rod of the hydraulic rod (8) is fixedly connected with the upper end surface of the limiting pressing plate (9), and the left and right sides of the hydraulic rod (8) are provided with limiting rods one (7) which penetrate through the U-shaped frame (6) and are slidably connected with the penetrating part, and the lower end of the limiting rod one (7) is fixedly connected with the upper end surface of the limiting pressing plate (9).

6. The truck-mounted workover rig for oilfield workover operations of claim 1, wherein, The rotating mechanism comprises a servo motor (5) fixedly connected with the upper end surface of the hollow bottom plate (3), and the output end of the servo motor (5) is fixedly connected with a rotating rod which penetrates through the hollow bottom plate (3) and is rotatably connected with the penetrating part.

7. The truck-mounted workover rig for oilfield workover operations of claim 6, wherein, One end of the rotating rod is fixedly connected with a worm (15), one side of the worm (15) is meshingly connected with a worm wheel (13), and the inner surface of the worm wheel (13) is fixedly connected with the outer surface of the bidirectional screw rod (14).

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