Folding wellhead operating platform

Abstract

The utility model provides a folding type well mouth operation table, and belongs to the technical field of oil field well mouths. The problems that a large number of tube banks need to be laid to harden the operation ground when workover operation is carried out on a well with a complex well site environment in an existing oil field, and the used tube banks are too heavy, inconvenient to transport and extremely inconvenient in the construction process are solved. The lifting device comprises operation table supports, a foot board and lifting legs, the operation table supports are installed on one side of the foot board, the two operation table supports are oppositely connected to the outer side of a wellhead in a sleeving mode, each lifting leg comprises a supporting rod and an outer cylinder, the outer cylinder is connected to the outer side of the supporting rod in a sleeving mode, and a lead screw is in threaded connection with the interior of the outer cylinder; the outer side of the outer cylinder is connected with a first plug pin inserted into the pin hole through an iron chain, the foot board comprises a supporting frame, a connecting frame and a connecting pin, the connecting pin is installed on the connecting frame, and the connecting frame is installed on the supporting frame. The device is mainly used for wellhead repair.

Description

Technical Field

[0001] The utility model belongs to the technical field of oilfield wellheads, and particularly relates to a folding wellhead operation platform. Background Art

[0002] Well workover operation is an important link in the oilfield production process. For many years, it has been a labor-intensive industry. At present, most oilfields use traditional equipment for operation. Generally, more than 5 workers are required to cooperate. A driller operates a well flushing machine or a workover rig to pull the tubing in and out. Two workers lift and carry the elevators, remove and hang the lifting rings, and push and pull the hydraulic tongs to tighten and loosen the tubing joints at the wellhead. Two workers drag the tubing on the well site, responsible for the transportation of the tubing between the wellhead and the tubing row and the placement of the tubing. Especially for wellhead minor workover operations, the working conditions are harsh, the labor intensity of workers is high, and there are also potential safety hazards during the operation process.

[0003] With the enhancement of the people-oriented concept and the awareness of safety and environmental protection, this long-term operation mode relying on manual work by workers needs to be changed urgently. With the development of automatic detection and control technology, improving the working environment of the operation, reducing the labor intensity, and realizing the mechanization of well workover operations, especially the unmanned operation at the wellhead, have become urgent problems to be solved in oilfield well workover operations.

[0004] At present, when oilfields conduct well workover operations on wells with complex well site environments, a large number of tubing rows need to be laid to harden the operation ground. The used tubing rows are too heavy and inconvenient for transportation, and it is extremely inconvenient during the construction process. Summary of the Utility Model

[0005] In view of this, the utility model aims to provide a folding wellhead operation platform to solve the problem that when oilfields conduct well workover operations on wells with complex well site environments, a large number of tubing rows need to be laid to harden the operation ground, the used tubing rows are too heavy and inconvenient for transportation, and it is extremely inconvenient during the construction process.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A folding wellhead operating platform, comprising an operating platform bracket, a tread platform and lifting legs. The operating platform bracket is installed on one side of the tread platform, and two operating platform brackets are relatively sleeved outside the wellhead. The lifting legs include a support rod and an outer cylinder. The outer cylinder is sleeved outside the support rod, and a lead screw is threadedly connected inside the outer cylinder. A plurality of pin holes are evenly distributed on the outer side of the support rod, and a first pin inserted into the pin holes is connected to the outside of the outer cylinder through a chain. The tread platform includes a support frame, a connecting frame and a connecting pin. The connecting pin is installed on the connecting frame, and the connecting frame is installed on the support frame. The operating platform bracket includes a rib plate, a turnbuckle bolt, a pin shaft, a nut, a hinge ear and a support plate. The rib plate is installed above the support plate, and a hinge ear is installed at one end of the rib plate. The hinge ears at the ends of the two rib plates on both sides of the wellhead are hinged. A pin shaft is installed inside the rib plate, and the turnbuckle bolt is installed on the two pin shafts, and a nut is installed at the end of the turnbuckle bolt.

[0008] Furthermore, short pipes and long pipes are symmetrically installed at both ends of the side surface of the rib plate. The short pipes are installed at positions close to the ends of the rib plate, and the connecting pins are inserted into the short pipes or the long pipes.

[0009] Furthermore, a retaining ear is provided at one end of the turnbuckle bolt connected to the nut.

[0010] Furthermore, a ball head is installed at the bottom of the outer cylinder, and the spherical part of the ball head is installed inside the foot plate.

[0011] Furthermore, steel balls are provided in the gap at the connection between the ball head and the foot plate.

[0012] Furthermore, anti-slip tips are installed at the bottom of the foot plate.

[0013] Furthermore, a nut is installed on the outside of the outer cylinder, and a setscrew is threadedly installed inside the nut.

[0014] Furthermore, a cross bar penetrates through the top of the support rod, and both ends of the cross bar are installed on the lower end surface of the support frame.

[0015] Furthermore, a connecting pipe is provided at the side end of the support rod, and a second pin inserted into the connecting pipe is installed on the support frame through a chain.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The operating platform described in the present utility model arranges the repair operating platforms around the wellhead through the tread platforms symmetrically installed at two wellheads and two operating platform brackets. The two operating platform brackets are hinged and can be folded around the wellhead during use, making the entire operating platform easy to install and disassemble.

[0018] 2. The utility model is provided with lifting legs, which can adjust the height of the lifting legs according to the terrain to make the entire operating platform flat. The operating platform has a wide range of applications and can be used in well sites where the natural conditions around the wellhead are harsh and it is not conducive to carrying out operations.

[0019] 3. The utility model has a simple structure, low cost and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings that form a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0021] Figure 1 is a schematic structural view of a folding wellhead operating platform according to the present utility model;

[0022] Figure 2 is a top view of a folding wellhead operating platform according to the present utility model;

[0023] Figure 3 is a top view of the operating platform bracket according to the present utility model;

[0024] Figure 4 is a front view of the operating platform bracket according to the present utility model;

[0025] Figure 5 is a side view of the operating platform bracket according to the present utility model;

[0026] Figure 6 is a schematic structural view of the lifting leg according to the present utility model;

[0027] Figure 7 is a top view of the tread plate according to the present utility model;

[0028] Figure 8 is the front view of the tread plate according to the present utility model Figure 1 ;

[0029] Figure 9 is the front view of the tread plate according to the present utility model Figure 2 .

[0030] 1 - Operating platform bracket, 2 - Step platform, 3 - Lifting leg, 4 - Wellhead, 5 - Rib plate, 6 - Universal joint bolt, 8 - Pin shaft, 9 - Nut, 10 - Short pipe, 11 - Stop ear, 12 - Hinge ear, 13 - Long pipe, 14 - Support plate, 15 - Outer cylinder, 16 - Ball head, 17 - Foot plate, 18 - Anti-slip tip, 19 - First bolt pin, 20 - Lead screw, 22 - Set screw, 23 - Nut, 24 - Steel ball, 25 - Connecting pin, 26 - Support frame, 27 - Support rod, 28 - Pin hole, 29 - Cross bar, 30 - Second bolt pin, 31 - Connecting frame, 32 - Connecting pipe. Detailed implementation mode

[0031] The following will clearly and completely elaborate on the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. The described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0032] See Figures 1-9 In this embodiment, a folding wellhead operating platform includes an operating platform bracket 1, a step platform 2, and a lifting leg 3. The operating platform bracket 1 is installed on one side of the step platform 2. Two operating platform brackets 1 are relatively sleeved outside the wellhead 4. The lifting leg 3 includes a support rod 27 and an outer cylinder 15. The outer cylinder 15 is sleeved outside the support rod 27. The outer cylinder 15 is internally threaded with a lead screw 20. A plurality of pin holes 28 are evenly distributed on the outer side of the support rod 27. The outer side of the outer cylinder 15 is connected by a chain with a first bolt pin 19 inserted into the pin hole 28. The step platform 2 includes a support frame 26, a connecting frame 31, and a connecting pin 25. The connecting pin 25 is installed on the connecting frame 31. The connecting frame 31 is installed on the support frame 26. The operating platform bracket 1 includes a rib plate 5, a universal joint bolt 6, a pin shaft 8, a nut 9, a hinge ear 12, and a support plate 14. The rib plate 5 is installed above the support plate 14. One end of the rib plate 5 is installed with a hinge ear 12. The hinge ears 12 at the ends of the two rib plates 5 on both sides of the wellhead 4 are hinged. The inner side of the rib plate 5 is installed with a pin shaft 8. The universal joint bolt 6 is installed on the two pin shafts 8. The end of the universal joint bolt 6 is installed with a nut 9.

[0033] When the device is in use, the two operating table brackets 1 are rotated along the wellhead 4, the two rib plates 5 are symmetrically arranged horizontally, and then the two rib plates 5 are fixed to the outside of the wellhead 4 by the movable bolts 6 and nuts 9, and then the height of the lifting legs 3 is adjusted by rotating the screw 20 to ensure that the horizontal heights of the two support frames 26 are consistent, thereby avoiding the quality of the wellhead repair being affected by the uneven ground. The two rib plates 5 of the device are hinged by the hinge ears 12, and the folding between the two platforms 2 can be achieved. When in use, they are rotated and installed on both sides of the wellhead 4. After the work is completed, the movable bolts 6 are removed, and then the two platforms 2 are rotated in opposite directions to fold the entire operating table for subsequent transportation. The folding method is also convenient for installation during use.

[0034] By providing the lifting legs 3, the height of the lifting legs 3 can be adjusted according to the terrain, so that the flatness of the entire operating platform is improved, and the operating platform has a wide range of uses, and can be used in well sites where the natural conditions around the wellhead are harsh and not conducive to carrying out operations.

[0035] Furthermore, short tubes 10 and long tubes 13 are symmetrically installed at both ends of the side of the rib plate 5. The short tube 10 is installed at a position close to the end of the rib plate 5. The connecting pin 25 is inserted into the short tube 10 or the long tube 13. It can be installed at different positions of the rib plate 5 according to the length of the connecting pin 25 on the platform 2, which can improve the applicability of the device. The long tube 13 and the short tube 10 are set at different positions, and platforms 2 of different sizes can be connected to the operating table bracket 1, and the working range of the operating table can be adjusted.

[0036] Furthermore, a stop ear 11 is provided at one end of the movable bolt 6 connected to the nut 9 .

[0037] Furthermore, a ball head 16 is installed at the bottom of the outer cylinder 15, and the spherical part of the ball head 16 is installed in the foot plate 17, so that the foot plate 17 can rotate in multiple directions, which can increase the application range of the operating table and can be applied to different ground conditions. A steel ball 24 is provided in the gap at the connection between the ball head 16 and the foot plate 17 to ensure the smoothness of the rotation of the foot plate 17.

[0038] Furthermore, the bottom of the foot plate 17 is provided with an anti-skid spike 18. After the entire operating table is level, the anti-skid spike 18 can prevent the staff from shaking and causing danger during work.

[0039] Furthermore, a nut 23 is installed on the outer side of the outer tube 15, and a top screw 22 is installed on the internal thread of the nut 23. After adjusting to a certain height, the top screw 22 can be used to support 22 to ensure the height stability of the lifting leg 3. After adjusting to a suitable height, the first pin 19 is inserted into the pin hole 28 to further improve the stability of the lifting leg 3.

[0040] Furthermore, a cross bar 29 penetrates through the top of the support rod 27, and both ends of the cross bar 29 are installed on the lower end surface of the support frame 26. After the work is completed, the cross bar 29 can be disassembled, and then the support rod 27 and the entire lifting leg 3 can be disassembled, making it more convenient to transport the entire device and saving storage space.

[0041] Furthermore, a connecting pipe 32 is provided on the side of the support rod 27, and a second pin 30 inserted into the connecting pipe 32 is installed on the support frame 26 through a chain. After the lifting leg 3 is installed, the stability of the lifting leg 3 is ensured by the second pin 30.

[0042] The embodiments of the present invention disclosed above are only used to help explain the present invention. The embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. According to the content of this specification, many modifications and variations can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well.

Claims

1. A foldable wellhead operating platform, characterized in that: The utility model comprises an operating platform bracket (1), a stepping platform (2) and a lifting leg (3), wherein the operating platform bracket (1) is installed on one side of the stepping platform (2), and the two operating platform brackets (1) are relatively sleeved on the outside of the wellhead (4), and the lifting leg (3) comprises a support rod (27) and an outer tube (15), the outer side of the support rod (27) is sleeved with the outer tube (15), and the inner thread of the outer tube (15) is connected to a lead screw (20), and the outer side of the support rod (27) is evenly distributed with a plurality of pin holes (28), and the outer side of the outer tube (15) is connected to a first pin (19) inserted into the pin hole (28) through an iron chain, and the stepping platform (2) comprises a support frame (26), a connecting frame (31) and a connecting pin (2 5), the connecting pin (25) is mounted on a connecting frame (31), the connecting frame (31) is mounted on a supporting frame (26), the operating table bracket (1) comprises a rib plate (5), a hinge bolt (6), a pin shaft (8), a nut (9), a hinge ear (12) and a supporting plate (14), the rib plate (5) is mounted above the supporting plate (14), one end of the rib plate (5) is mounted with a hinge ear (12), the hinge ears (12) at the ends of the two rib plates (5) on both sides of the wellhead (4) are hinged, a pin shaft (8) is mounted on the inner side of the rib plate (5), the hinge bolt (6) is mounted on two pin shafts (8), and a nut (9) is mounted on the end of the hinge bolt (6).

2. A foldable wellhead operating platform according to claim 1, characterized in that: A short tube (10) and a long tube (13) are symmetrically mounted at both ends of the side surface of the rib plate (5); the short tube (10) is mounted at a position close to the end of the rib plate (5); and the connecting pin (25) is inserted into the short tube (10) or the long tube (13).

3. The foldable wellhead operating platform according to claim 1, characterized in that: One end of the movable bolt (6) connected to the nut (9) is provided with a stop ear (11).

4. The foldable wellhead operating platform according to claim 1, characterized in that: A ball head (16) is installed at the bottom of the outer cylinder (15), and the spherical part of the ball head (16) is installed in the foot plate (17).

5. A foldable wellhead operating platform according to claim 4, characterized in that: A steel ball (24) is provided at the gap between the ball head (16) and the foot plate (17).

6. The foldable wellhead operating platform according to claim 4, characterized in that: The bottom of the foot plate (17) is provided with an anti-skid tip (18).

7. The foldable wellhead operating platform according to claim 1, characterized in that: A nut (23) is installed on the outer side of the outer cylinder (15), and a top screw (22) is installed on the inner thread of the nut (23).

8. The foldable wellhead operating platform according to claim 1, characterized in that: A cross bar (29) passes through the top of the support rod (27), and both ends of the cross bar (29) are mounted on the lower end surface of the support frame (26).

9. The foldable wellhead operating platform according to claim 1, characterized in that: A connecting pipe (32) is provided at the side end of the support rod (27), and a second latch (30) inserted into the connecting pipe (32) is installed on the support frame (26) via an iron chain.

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