High-pressure movable elbow for well repair in oil field

Abstract

The utility model relates to the technical field of movable elbows, and discloses a high-pressure movable elbow for well repair in an oil field, which comprises a high-pressure joint equipment body, a high-pressure elbow body and a high-pressure interface body, the dismounting and mounting mechanism comprises a high-pressure connecting block, a high-pressure connecting hole, a limiting mounting ring, a limiting elastic block and a corresponding limiting clamping hole, a first limiting clamping groove is formed in the top end wall of the high-pressure connector equipment body, a second limiting clamping groove is formed in the top end wall of the high-pressure connecting block, and limiting mechanisms are arranged in the first limiting clamping groove and the second limiting clamping groove; the limiting mechanism comprises a limiting supporting column, a limiting supporting ring, a limiting clamping block and a thrust spring. Through the arrangement of the high-pressure connecting block, the high-pressure connecting hole, the limiting mounting ring, the limiting elastic block and the corresponding limiting clamping hole, when the high-pressure elbow body needs to be replaced, the high-pressure connector equipment body and the high-pressure elbow body can be quickly disassembled, assembled and separated conveniently.

Description

Technical Field

[0001] This utility model relates to the field of movable elbow technology, and in particular to a high-pressure movable elbow for oilfield well repair. Background Technology

[0002] In oilfield well workover operations, high-pressure flexible elbows are commonly used pipeline connection and turning devices, primarily used to connect, bend, and adapt pipelines to space constraints under high-pressure environments. They are typically installed at wellheads, workover equipment, or pipeline systems to regulate fluid flow, provide safe connections, and enable pipeline flexibility.

[0003] Main features:

[0004] High pressure adaptability: High pressure flexible elbows used in oilfield well workover operations are usually designed to withstand high pressures, with common pressure ratings including 3000psi, 5000psi, and 10000psi, to meet the high pressure requirements of downhole operations.

[0005] Mobility: The "mobility" feature of high-pressure flexible elbows allows them to be adjusted between different angles, typically 45°, 90°, or other customized angles. This allows them to adapt to irregular pipeline routes or spatial layouts in oilfield operations.

[0006] Sealing and corrosion resistance: These devices require excellent sealing performance to prevent oil and gas leaks. Additionally, since the operating environment often contains corrosive media, high-pressure flexible elbows need to be corrosion-resistant and are typically manufactured using materials such as alloy steel or stainless steel.

[0007] Connection method: Generally, it is connected to pipes or other equipment through threaded connection, flange connection or welding to ensure the stability and safety of the pipeline system.

[0008] Applications: Primarily used in oil well workover operations, involving connections between downhole pipelines and wellhead equipment, especially when space is limited at the work site or when pipeline direction needs to be changed.

[0009] Common specifications and standards:

[0010] Standard pressure ratings: 3000psi, 5000psi, 10000psi.

[0011] Material selection: Commonly used materials include alloy steel, carbon steel, and stainless steel. The specific material depends on the requirements of the working environment.

[0012] Size and angle: Standard angles are 45°, 90°, etc., and can be customized according to actual needs.

[0013] Precautions for use:

[0014] Installation and Maintenance: Ensure a good seal during installation to prevent oil and gas leaks due to loose connections. Regularly check the equipment's sealing performance and corrosion condition.

[0015] Operating pressure: Select the appropriate high-pressure flexible elbow according to the pressure requirements of the working environment to avoid equipment damage or leakage caused by excessive pressure.

[0016] Environmental adaptation: Selecting appropriate materials and structures to cope with environmental factors such as extreme temperatures and corrosive media in oilfield operations.

[0017] In the existing technology, a high-pressure movable elbow for oilfield well workover can be used normally, but quality problems such as cracking and bursting of the movable elbow and other pipe fittings due to erosion damage often occur. It does not have a setting for quick disassembly and assembly of the elbow, which greatly reduces the practicality of the device.

[0018] Therefore, we propose a high-pressure movable elbow for oilfield well workover. Utility Model Content

[0019] The present invention mainly addresses the technical problems existing in the prior art and provides a high-pressure movable elbow for oilfield well repair.

[0020] To achieve the above objectives, this utility model adopts the following technical solution: a high-pressure movable elbow for oilfield well workover, comprising a high-pressure connector equipment body, a high-pressure elbow body, and a high-pressure interface body. The high-pressure interface body is provided with a disassembly and assembly mechanism for quick installation with the high-pressure elbow body. The disassembly and assembly mechanism includes a high-pressure connecting block, a high-pressure connecting hole, a limiting installation ring, a limiting spring block, and corresponding limiting slots. A limiting slot one is provided on the top wall of the high-pressure connector equipment body, and a limiting slot two is provided on the top wall of the high-pressure connecting block. Limiting mechanisms are provided in the limiting slot one and the limiting slot two. The limiting mechanisms include a limiting support column, a limiting support ring, a limiting block, and a thrust spring.

[0021] As a preferred embodiment of this utility model, the high-voltage connection hole is opened on the outer wall of the front end of the high-voltage connection block, the limiting installation ring is fixedly installed on the inner wall of the high-voltage connection hole, and there are multiple limiting spring blocks, which are respectively fixedly installed on the inner wall of the limiting installation ring.

[0022] As a preferred technical solution of this utility model, there are multiple limiting holes, which are respectively opened on the outer wall of the high-pressure elbow body. The high-pressure elbow body is movably fitted into the high-pressure connection hole, and multiple limiting spring blocks are movably installed in the multiple limiting holes.

[0023] As a preferred technical solution of this utility model, the high-voltage connecting block is movably installed in the high-voltage interface body, and the positions of the limiting slot one and the limiting slot two correspond to each other.

[0024] As a preferred embodiment of this utility model, the limiting support is movably installed in the limiting slot.

[0025] As a preferred embodiment of this utility model, the limiting support ring is fixedly installed on the outer wall of the limiting support column, and the limiting support ring is located inside the high-voltage interface body.

[0026] As a preferred embodiment of this utility model, the thrust spring is movably fitted onto the outer wall of the limiting support.

[0027] As a preferred embodiment of this utility model, the bottom end of the thrust spring is movably mounted on the top wall of the limiting support ring, and the top end of the thrust spring is movably mounted on the inner top wall of the high-pressure interface body.

[0028] As a preferred technical solution of this utility model, the limiting block is fixedly installed on the bottom wall of the limiting column, and the limiting block is movably installed in the limiting slot two.

[0029] This utility model provides a high-pressure movable elbow for oilfield well workover. It has the following beneficial effects:

[0030] 1. This high-pressure movable elbow for oilfield well workover, when needed, facilitates quick disassembly and separation of the high-pressure connector equipment body and the high-pressure elbow body through the high-pressure connecting block, high-pressure connecting hole, limit installation ring, limit spring block and corresponding limit locking hole, improving the practicality of the device.

[0031] 2. This type of high-pressure movable elbow for oilfield well repair, when needed, facilitates the quick disassembly and separation of the high-pressure connector equipment body and the high-pressure connecting block through the cooperation of the set limit slot one, limit slot two, limit support, limit support ring, limit block and thrust spring, which facilitates installation and fixation and improves the convenience of the device. Attached Figure Description

[0032] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented, and therefore have no substantial technical significance.

[0033] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0034] Figure 2 This is a schematic diagram of a utility model high-voltage connecting block.

[0035] Figure 3 For utility model Figure 2 Enlarged view of point A in the middle;

[0036] Figure 4 For utility model Figure 1 Enlarged view of section B in the middle.

[0037] Legend:

[0038] 101. High-pressure connector body; 102. High-pressure elbow body; 103. High-pressure interface body; 11. High-pressure connecting block; 12. High-pressure connecting hole; 13. Limiting mounting ring; 14. Limiting spring block; 15. Limiting locking hole; 16. Limiting slot one; 17. Limiting slot two; 18. Limiting support column; 19. Limiting support ring; 20. Limiting block; 21. Thrust spring. Detailed Implementation

[0039] A type of high-pressure movable elbow for oilfield well workover, such as Figure 1-4 As shown, the device includes a high-pressure connector body 101, a high-pressure elbow body 102, and a high-pressure interface body 103. The high-pressure interface body 103 is equipped with a disassembly / assembly mechanism for quick installation with the high-pressure elbow body 102. This mechanism includes a high-pressure connecting block 11, a high-pressure connecting hole 12, a limiting mounting ring 13, and limiting spring blocks 14, as well as corresponding limiting slots 15. A first limiting slot 16 is formed on the top wall of the high-pressure connector body 101, and a second limiting slot 17 is formed on the top wall of the high-pressure connecting block 11. Limiting mechanisms are provided within the first and second limiting slots 16 and 17. These limiting mechanisms include a limiting support column 18, a limiting support ring 19, a limiting block 20, and a thrust spring 21. The high-pressure connecting hole 12 is formed on the front outer wall of the high-pressure connecting block 11. The limiting mounting ring 13 is fixedly installed on the inner wall of the high-pressure connecting hole 12. Multiple limiting spring blocks 14 are fixedly installed on the inner wall of the limiting mounting ring 13. The upper part has multiple limit holes 15, which are respectively formed on the outer wall of the high-pressure elbow body 102. The high-pressure elbow body 102 is movably fitted into the high-pressure connection hole 12. Multiple limit spring blocks 14 are respectively movably installed in the multiple limit holes 15. The high-pressure connection block 11 is movably installed in the high-pressure interface body 103. The positions of the first limit groove 16 and the second limit groove 17 are corresponding. The limit support 18 is movably installed in the first limit groove 16. The limit support ring... 19 is fixedly installed on the outer wall of the limiting support 18. The limiting support ring 19 is located inside the high-voltage interface body 103. The thrust spring 21 is movably fitted into the outer wall of the limiting support 18. The bottom end of the thrust spring 21 is movably installed on the top wall of the limiting support ring 19. The top end of the thrust spring 21 is movably installed on the top inner wall of the high-voltage interface body 103. The limiting block 20 is fixedly installed on the bottom wall of the limiting support 18. The limiting block 20 is movably installed in the limiting slot 17.

[0040] The working principle of this utility model is as follows: When needed, the high-pressure connection block 11, high-pressure connection hole 12, limit mounting ring 13, limit spring block 14, and corresponding limit locking hole 15 facilitate the quick disassembly and separation of the high-pressure connector equipment body 101 and the high-pressure elbow body 102 when the high-pressure elbow body 102 needs to be replaced, thereby improving the practicality of the device.

[0041] When needed, the high-pressure connector equipment body 101 and the high-pressure connection block 11 can be quickly disassembled and separated through the cooperation of the limiting slot 16, limiting slot 27, limiting support 18, limiting support ring 19, limiting block 20 and thrust spring 21, which facilitates installation and fixation and improves the convenience of the device.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-pressure movable elbow for oilfield well workover, comprising a high-pressure connector equipment body (101), a high-pressure elbow body (102), and a high-pressure interface body (103), characterized in that: The high-pressure interface body (103) is provided with a disassembly and assembly mechanism for quick installation with the high-pressure elbow body (102). The disassembly and assembly mechanism includes a high-pressure connecting block (11), a high-pressure connecting hole (12), a limiting mounting ring (13), a limiting spring block (14), and a corresponding limiting card hole (15). A limiting card groove one (16) is opened on the top wall of the high-pressure connector equipment body (101), and a limiting card groove two (17) is opened on the top wall of the high-pressure connecting block (11). A limiting mechanism is provided in the limiting card groove one (16) and the limiting card groove two (17). The limiting mechanism includes a limiting support column (18), a limiting support ring (19), a limiting card block (20), and a thrust spring (21).

2. The high-pressure movable elbow for oilfield well workover as described in claim 1, characterized in that: The high-voltage connection hole (12) is opened on the outer wall of the front end of the high-voltage connection block (11). The limiting installation ring (13) is fixedly installed on the inner wall of the high-voltage connection hole (12). There are multiple limiting spring blocks (14), and the multiple limiting spring blocks (14) are respectively fixedly installed on the inner wall of the limiting installation ring (13).

3. The high-pressure movable elbow for oilfield well workover according to claim 1, characterized in that: There are multiple limiting holes (15), which are respectively opened on the outer wall of the high-pressure elbow body (102). The high-pressure elbow body (102) is movably fitted into the high-pressure connection hole (12), and multiple limiting springs (14) are respectively movably installed in the multiple limiting holes (15).

4. The high-pressure movable elbow for oilfield well workover as described in claim 1, characterized in that: The high-voltage connection block (11) is movably installed inside the high-voltage interface body (103), and the positions of the first limiting slot (16) and the second limiting slot (17) are corresponding.

5. A high-pressure movable elbow for oilfield well workover as described in claim 1, characterized in that: The limiting support column (18) is movably installed in the limiting slot (16), and the limiting ring (19) is fixedly installed on the outer wall of the limiting support column (18). The limiting ring (19) is located inside the high-voltage interface body (103).

6. A high-pressure movable elbow for oilfield well workover as described in claim 1, characterized in that: The thrust spring (21) is movably fitted onto the outer wall of the limiting support (18), the bottom end of the thrust spring (21) is movably installed on the top wall of the limiting support ring (19), and the top end of the thrust spring (21) is movably installed on the top inner wall of the high-pressure interface body (103).

7. A high-pressure movable elbow for oilfield well workover as described in claim 1, characterized in that: The limiting block (20) is fixedly installed on the bottom wall of the limiting support column (18), and the limiting block (20) is movably installed in the limiting slot (17).

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