Auxiliary device for supporting wellhead of Christmas tree

Abstract

The utility model relates to the technical field of oil exploitation equipment, and discloses a Christmas tree wellhead supporting auxiliary device which comprises a first clamping plate and a second clamping plate, rubber pads are fixedly arranged on one side of the first clamping plate and one side of the second clamping plate, a pull rod is arranged between the first clamping plate and the second clamping plate, and the first clamping plate is connected with the second clamping plate through the pull rod. Round rods are fixedly arranged on the other side of the first clamping plate and the other side of the second clamping plate, sliding sleeves are slidably connected to the surfaces of the round rods, and positioning screws for limiting the sliding sleeves are in threaded connection with one sides of the sliding sleeves. The first clamping plate and the second clamping plate can be fixed to a casing head of a Christmas tree wellhead through the pull rod, the rubber pad can increase the fitting degree and friction force between the first clamping plate and the casing head and between the second clamping plate and the casing head, the supporting assembly can support the first clamping plate and the second clamping plate, and the height of the first clamping plate and the height of the second clamping plate can be adjusted conveniently. The round rod can support the sleeve valve through the bearing assembly.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction equipment technology, specifically to an auxiliary device for supporting wellheads in oil production trees. Background Technology

[0002] The wellhead is a key surface device in an oil and gas well production system. Installed on the casing head, it consists of a series of valves, flanges, four-way valves, and pressure control devices, resembling a "tree" structure. Its core functions are to control the flow of fluids in the well (such as opening / closing the production zone channel), regulate production, monitor pressure, and provide an interface for downhole operations (such as logging and gas injection). At the same time, it prevents safety accidents such as blowouts. The wellhead must withstand high pressure, corrosive media, and harsh field environments. Its stability directly affects production safety. Therefore, it is often equipped with support devices to resist the influence of external forces such as vibration and foundation settlement.

[0003] In existing technologies, wellhead trees are usually installed directly on the wellhead flange without a dedicated support structure. During long-term operation, they are prone to displacement due to vibration, foundation settlement or external impact, which can lead to seal failure or equipment damage. Some existing support devices also have problems such as inconvenient adjustment and poor adaptability.

[0004] Therefore, there is an urgent need for a support and auxiliary device that is simple in structure, highly adjustable, and highly stable. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an auxiliary device for supporting the wellhead of the Christmas tree, which has the advantages of facilitating the support of the wellhead and being easy to adjust, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: an auxiliary support device for wellhead support in oil production, including a clamping plate one and a clamping plate two. Rubber pads are fixedly provided on one side of the clamping plate one and one side of the clamping plate two. A tie rod is provided between the clamping plate one and the clamping plate two. The clamping plate one is connected to the clamping plate two through the tie rod. A round rod is fixedly provided on the other side of the clamping plate one and the other side of the clamping plate two. A sliding sleeve is slidably connected to the surface of the round rod. A positioning screw for limiting the movement is threaded to one side of the sliding sleeve. A support component for supporting the casing valve is provided at the top of the sliding sleeve. A support component for supporting the round rod is provided at one end of the round rod.

[0007] As a preferred technical solution of this utility model, side plates are fixedly provided on both sides of the first clamping plate and both sides of the second clamping plate. Through holes are provided at the top and bottom of the side plates. The pull rod is inserted and connected to the through holes. One end of the pull rod is provided with threads. The pull rod is connected to a locking nut through the threads.

[0008] As a preferred technical solution of this utility model, the supporting component includes a frame, the bottom end of the frame is welded to a sliding sleeve, a lead screw is rotatably provided inside the frame, the bottom end of the lead screw is fixedly connected to a wrench position through a connecting rod, a bracket is threadedly connected to the surface of the lead screw through a threaded sleeve, the bracket is slidably connected to the top end of the frame, and a support platform is welded to the top end of the bracket.

[0009] As a preferred technical solution of this utility model, a curved groove is provided at the top of the support platform, and a protective pad is bonded inside the curved groove.

[0010] As a preferred technical solution of this utility model, one side of the sliding sleeve is provided with a flat opening, and the middle of the flat opening is provided with a threaded hole for threaded connection with the positioning screw. The surface of the round rod is provided with a plurality of limiting holes corresponding to the positioning screw, and the positioning screw and the limiting holes are located on the same horizontal plane.

[0011] As a preferred technical solution of this utility model, the support component includes a second frame, the top of one side of the second frame is welded to one end of a round rod, the inside of the second frame is rotatably connected to a second lead screw, the top end of the second lead screw is fixedly connected to a second wrench position via a connecting rod, the surface of the second lead screw is threadedly connected to a second bracket via a threaded sleeve, the second bracket is slidably connected to the bottom end of the second frame, the bottom end of the second bracket is welded to a pad, and the surface of the pad is provided with a positioning hole.

[0012] As a preferred embodiment of this utility model, a stiffening plate is welded to the top of one side of the frame two, and one side of the stiffening plate is welded to a round rod.

[0013] As a preferred embodiment of this utility model, reinforcing plates are welded to the other side of both the first clamping plate and the second clamping plate, and the two sides of the reinforcing plates are welded to the round rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The tie rod can fix clamp plate one and clamp plate two to the casing head at the wellhead of the wellhead. The rubber pad can increase the fit and friction between clamp plate one and clamp plate two and the casing head. The support component can provide support for clamp plate one and clamp plate two and facilitate the adjustment of the height of clamp plate one and clamp plate two. The round rod can provide support for the casing valve through the support component, which improves the integrity and stability between the casing valve and the casing head. The support component can also adjust the support height of the casing valve. The structure is simple and avoids the phenomenon of displacement caused by vibration, foundation settlement or external impact during long-term operation, which may lead to sealing failure or equipment damage.

[0016] 2. The position of the supporting component can be horizontally adjusted by sliding the sliding sleeve, which is convenient for supporting the sleeve valve according to its position. The positioning screw can be used to position the sliding sleeve after adjustment, and horizontal displacement of the sliding sleeve can be prevented during the support process. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the clamping plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the support component of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the support component of this utility model.

[0022] In the diagram: 1. Clamping plate one; 2. Clamping plate two; 3. Tie rod; 4. Round rod; 5. Support assembly; 501. Frame one; 502. Lead screw one; 503. Wrench position one; 504. Bracket one; 505. Foundation; 506. Protective pad; 6. Support assembly; 601. Frame two; 602. Lead screw two; 603. Wrench position two; 604. Bracket two; 605. Pad; 606. Positioning hole; 607. Rib plate; 7. Rubber pad; 8. Side plate; 9. Through hole; 10. Locking nut; 11. Reinforcing plate; 12. Limiting hole; 13. Sliding sleeve; 14. Flat end; 15. Threaded hole; 16. Positioning screw. Detailed Implementation

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

[0024] Please see Figures 1-5The wellhead support auxiliary device for the oil production tree includes a clamp plate 1 and a clamp plate 2. Rubber pads 7 are fixedly installed on one side of clamp plate 1 and one side of clamp plate 2. A tie rod 3 is provided between clamp plate 1 and clamp plate 2, connecting clamp plate 1 to clamp plate 2 via the tie rod 3. A round rod 4 is fixedly installed on the other side of both clamp plate 1 and clamp plate 2. A sliding sleeve 13 is slidably connected to the surface of the round rod 4. A positioning screw 16 for limiting the movement is threaded onto one side of the sliding sleeve 13. A support component 5 for supporting the casing valve is provided at the top of the sliding sleeve 13. One end of the round rod 4 is... The support assembly 6, which supports the casing, can fix the first clamp 1 and the second clamp 2 to the casing head at the wellhead of the wellhead via the tie rod 3. The rubber pad 7 can increase the fit and friction between the first clamp 1 and the second clamp 2 and the casing head. The support assembly 6 can provide support for the first clamp 1 and the second clamp 2 and facilitate the adjustment of the height of the first clamp 1 and the second clamp 2. The round rod 4 can provide support for the casing valve via the support assembly 5, which improves the integrity and stability between the casing valve and the casing head. The support assembly 5 can also adjust the support height of the casing valve. The structure is simple.

[0025] In this embodiment, preferably, the supporting component 5 includes a frame 501, the bottom end of which is welded to a sliding sleeve 13. A lead screw 502 is rotatably mounted inside the frame 501. A wrench position 503 is fixedly connected to the bottom end of the lead screw 502 via a connecting rod. A bracket 504 is threadedly connected to the surface of the lead screw 502 via a threaded sleeve. The bracket 504 is slidably connected to the top end of the frame 501. A support platform 505 is welded to the top end of the bracket 504, and a curved groove is formed at the top end of the support platform 505. The curved groove has a protective pad 506 bonded inside. The round rod 4 can provide support for the frame 501. The frame 501 can provide support for the sleeve valve through the bracket 504 and the base 505. The curved groove can increase the fit between the sleeve valve and the base 505. The protective pad 506 can provide protection between the sleeve valve and the base 505. By turning the screw 502 through the wrench position 503, the height of the base 505 can be adjusted, which makes it convenient to adjust the support height of the sleeve valve.

[0026] In this embodiment, preferably, the support component 6 includes a second frame 601. The top of one side of the second frame 601 is welded to one end of the round rod 4. A second lead screw 602 is rotatably connected inside the second frame 601. The top end of the second lead screw 602 is fixedly connected to a second wrench position 603 via a connecting rod. A second bracket 604 is threadedly connected to the surface of the second lead screw 602 via a threaded sleeve. The second bracket 604 is slidably connected to the bottom end of the second frame 601. A pad 605 is welded to the bottom end of the second bracket 604. The surface of the pad 605 is provided with positioning holes 606. A stiffening plate 607 is welded to the top of one side of the frame 2 601. One side of the stiffening plate 607 is welded to the round rod 4. The pad 605 can provide support for the round rod 4 through the bracket 2 604 and the frame 2 601. The round rod 4 can provide support for the clamping plate 1 and the clamping plate 2. By rotating the screw 2 602 through the wrench position 2 603, the height of the bracket 2 604 can be adjusted, thereby adjusting the clamping height of the clamping plate 1 and the clamping plate 2.

[0027] In this embodiment, preferably, side plates 8 are fixedly provided on both sides of clamp plate 1 and clamp plate 2. The top and bottom of the side plates 8 are provided with through holes 9. The pull rod 3 is inserted and connected to the through holes 9. One end of the pull rod 3 is provided with threads. The pull rod 3 is connected to the locking nut 10 through the threads. The other side of clamp plate 1 and clamp plate 2 are welded with reinforcing plates 11. The two sides of the reinforcing plates 11 are welded to the round rod 4. The pull rod 3 can be inserted through the through holes 9. The side plates 8 can be tightened by the pull rod 3 and the locking nut 10, so that clamp plate 1 and clamp plate 2 can clamp the sleeve head.

[0028] In this embodiment, preferably, a flat opening 14 is provided on one side of the sliding sleeve 13, and a threaded hole 15 is provided in the middle of the flat opening 14 for threaded connection with the positioning screw 16. The surface of the round rod 4 is provided with a plurality of limiting holes 12 corresponding to the positioning screw 16. The positioning screw 16 and the limiting hole 12 are located on the same horizontal plane. The positioning screw 16 can be positioned through the threaded hole 15. By inserting one end of the positioning screw 16 into the limiting hole 12, the sliding sleeve 13 can be limited, which can prevent the sliding sleeve 13 from horizontally displacing.

[0029] In use, firstly, rotate the screw 602 of the support assembly 6 according to the height of the casing head at the wellhead of the oil production tree to adjust the height of the clamp 1 and clamp 2. Then, put the clamp 1 and clamp 2 on the casing head, and then pass the pull rod 3 through the through hole 9 of the side plate 8 and tighten the locking nut 10 to fix the clamp 1 and clamp 2 on the casing head. The rubber pad 7 can increase the fit and friction between the clamp 1 and clamp 2 and the casing head.

[0030] After clamp 1 and clamp 2 are fixed, loosen the positioning screw 16 and slide the frame 501 of the support assembly 5 horizontally through the sliding sleeve 13. When the support 505 is slid to the bottom of the sleeve valve, screw the positioning screw 16 into the limiting hole 12 corresponding to its position to limit the sliding sleeve 13 and prevent the sliding sleeve 13 from moving horizontally.

[0031] After the sliding sleeve 13 is limited, the screw 502 can be rotated by the wrench position 503 to convert the rotational motion into the linear motion of the support 504. The support 504 can adjust the height of the bearing platform 505. The curved groove of the bearing platform 505 can increase the fit between the casing valve and the bearing platform 505. The protective pad 506 can provide protection between the casing valve and the bearing platform 505, thereby improving the integrity and stability between the casing valve and the casing head. In long-term operation, it avoids the phenomenon of displacement caused by vibration, foundation settlement or external impact, which may lead to the failure of the wellhead seal or equipment damage.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wellhead support auxiliary device for oil production trees, comprising a first clamping plate (1) and a second clamping plate (2), characterized in that: Rubber pads (7) are fixedly provided on one side of the clamping plate one (1) and one side of the clamping plate two (2). A pull rod (3) is provided between the clamping plate one (1) and the clamping plate two (2). The clamping plate one (1) is connected to the clamping plate two (2) through the pull rod (3). A round rod (4) is fixedly provided on the other side of the clamping plate one (1) and the other side of the clamping plate two (2). A sliding sleeve (13) is slidably connected to the surface of the round rod (4). A positioning screw (16) for limiting the movement is threaded on one side of the sliding sleeve (13). A support component (5) for supporting the sleeve valve is provided at the top of the sliding sleeve (13). A support component (6) for supporting the round rod (4) is provided at one end of the round rod (4).

2. The wellhead support auxiliary device for oil production trees according to claim 1, characterized in that: Side plates (8) are fixedly provided on both sides of the first clamp (1) and the second clamp (2). The top and bottom of the side plates (8) are provided with through holes (9). The pull rod (3) is inserted and connected to the through holes (9). One end of the pull rod (3) is provided with threads. The pull rod (3) is connected to a locking nut (10) through the threads.

3. The wellhead support auxiliary device for oil production trees according to claim 1, characterized in that: The supporting component (5) includes a frame (501), the bottom end of which is welded to a sliding sleeve (13). A lead screw (502) is rotatably provided inside the frame (501). A wrench position (503) is fixedly connected to the bottom end of the lead screw (502) via a connecting rod. A bracket (504) is threadedly connected to the surface of the lead screw (502) via a threaded sleeve. The bracket (504) is slidably connected to the top end of the frame (501). A support platform (505) is welded to the top end of the bracket (504).

4. The wellhead support auxiliary device for oil production trees according to claim 3, characterized in that: The top of the support (505) is provided with a curved groove, and a protective pad (506) is bonded inside the curved groove.

5. The wellhead support auxiliary device for oil production trees according to claim 1, characterized in that: The sliding sleeve (13) has a flat opening (14) on one side, and a threaded hole (15) for threaded connection with the positioning screw (16) is provided in the middle of the flat opening (14). The surface of the round rod (4) is provided with a number of limiting holes (12) corresponding to the positioning screw (16). The positioning screw (16) and the limiting holes (12) are located on the same horizontal plane.

6. The wellhead support auxiliary device for oil production trees according to claim 1, characterized in that: The support assembly (6) includes a second frame (601), the top of one side of the second frame (601) is welded to one end of a round rod (4), the second frame (601) is rotatably connected to a second lead screw (602), the top of the second lead screw (602) is fixedly connected to a second wrench position (603) through a connecting rod, the surface of the second lead screw (602) is threadedly connected to a second bracket (604) through a threaded sleeve, the second bracket (604) is slidably connected to the bottom end of the second frame (601), the bottom end of the second bracket (604) is welded to a pad (605), and the surface of the pad (605) is provided with a positioning hole (606).

7. The wellhead support auxiliary device for production trees according to claim 6, characterized in that: A stiffening plate (607) is welded to the top of one side of the frame two (601), and one side of the stiffening plate (607) is welded to the round rod (4).

8. The wellhead support auxiliary device for oil production trees according to claim 1, characterized in that: A reinforcing plate (11) is welded to the other side of the first clamp (1) and the other side of the second clamp (2). The two sides of the reinforcing plate (11) are welded to the round rod (4).

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