Pipeline sealing connection structure for oil extraction in oil field

Abstract

The utility model relates to the technical field of oil field pipeline connection, in particular to a pipeline sealing connection structure for oil field oil extraction, which comprises two pipeline main bodies, a connecting cylinder is arranged between the two pipeline main bodies, and the two pipeline main bodies are communicated through the connecting cylinder. And a second sealing assembly for assisting the connecting cylinder to seal the pipeline main bodies is further arranged at the joint of the two pipeline main bodies. By means of the supporting assembly and the connecting cylinder, stable connection between the pipeline bodies is achieved, the installation process is simple, convenient and rapid due to the rotatable design of the connecting ring, the risk of oil and gas leakage is effectively avoided due to the sealing design between the connecting cylinder and the pipeline bodies, and the safety of a pipeline system is improved; gas generated by leakage can enter the gas detection device through the connecting pipe, the gas detection device can rapidly detect abnormal gas, an alarm is started to prompt the leakage position, and workers can conveniently conduct maintenance in time.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field pipeline connection, in particular to a pipeline sealing connection structure for oil field oil production. Background Art

[0002] Oil production pipeline refers to the pipeline that transports the produced oil and gas from the oil well to the processing system. The commonly used materials for oil production pipelines are galvanized steel pipes, galvanized seamless pipes and polyethylene pipes. These materials have good corrosion resistance, high pressure resistance and high temperature resistance, and are suitable for use in oil production environments. However, the length of the pipeline is limited. During installation, it is usually necessary to use a connecting structure to splice two pipelines.

[0003] However, the current pipeline connection structure is relatively simple. During long-term use, oil leakage and other problems are prone to occur at the pipeline connection, which requires timely replacement and maintenance, which is rather troublesome. In addition, when a pipeline leaks, it cannot be discovered and handled in time, which easily causes a certain amount of resource waste.

[0004] For example, the publication number "CN213040031U" provides a splicing structure for an oil field production pipeline. The device installs a rain shield above the oil pipeline through an assembly ring and a connecting rod. It can effectively prevent rainwater from seeping into the space between flange A and flange B during rainfall, causing internal corrosion, which in the long run leads to unstable connections between the oil pipelines, oil leakage, or even explosions, thereby increasing the service life of the equipment and increasing safety.

[0005] However, the above device still has the following problems during implementation:

[0006] The connection structure of the device is relatively simple and the sealing performance is poor. Although the rain shield can prevent rainwater from corroding the pipe during use, after long-term use, various aging reactions may cause the sealing gasket to become hard, brittle or expand in volume, thereby losing its original elasticity and sealing performance, causing oil leakage in the pipe, affecting its use. Utility Model Content

[0007] The utility model aims to provide a pipeline sealing connection structure for oil field production, so as to solve the problems raised in the above-mentioned background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A sealing connection structure for oil field production pipelines, comprising two pipeline bodies, a connecting tube is arranged between the two pipeline bodies, the two pipeline bodies are connected through the connecting tube, and a second sealing component is also arranged at the joint of the two pipeline bodies to assist the connecting tube in sealing the pipeline bodies;

[0010] The second sealing component is also provided with a gas detection device for monitoring the sealing state.

[0011] Preferably: the second sealing assembly includes two fixing rings, the two fixing rings are respectively clamped on the top and bottom of the pipeline body, both ends of the two second sealing assemblies are fixedly connected with reinforcement rings, and the multiple reinforcement rings are respectively clamped on the surfaces of adjacent pipeline bodies.

[0012] Preferably: a fixing plate is installed on the side where the two fixing rings are close to each other, and both sides of the fixing plate extend to the adjacent reinforcement rings and are fixed to the adjacent reinforcement rings, each of the fixing plates is provided with a plurality of screw holes, and two upper and lower adjacent screw holes are provided with fixing bolts, and the two fixing rings are fixed by the plurality of fixing bolts.

[0013] Preferably: sealing rings are fixedly connected to both sides of the two fixing rings, and the side of the sealing ring close to the pipeline body abuts against the surface of the pipeline body, and a connecting hole is opened in the inner wall of one of the fixing rings, and the other end of the connecting hole passes through one of the reinforcement rings and extends to the surface of the reinforcement ring;

[0014] A connecting pipe is arranged at the bottom of the gas detection device, and the connecting pipe is fixedly connected to the reinforcement ring and communicated with the connecting hole on the reinforcement ring.

[0015] Preferably: sealing rings are installed on both sides of the connecting tube, and the two sealing rings are respectively slidably engaged in the inner walls of adjacent pipe bodies. Fixed grooves are also opened on both sides of the connecting tube, and the connecting tube is engaged with the adjacent pipe bodies through the two fixed grooves.

[0016] Preferably: a support assembly is also provided on the two pipe bodies, the support assembly includes a base plate, a fixing column is installed on the top of the base plate, two connecting rings are fixedly connected to the top of the fixing column, a connecting plate is installed at one end of the two connecting rings, a plurality of mounting holes are opened on the connecting plate, a fixing rod is provided on each of the mounting holes, the two connecting rings are fixed to each other by the plurality of fixing rods, and the other ends of the two connecting rings are hinged by a rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model realizes a stable connection between the pipeline bodies by providing a support assembly and a connecting cylinder. The rotatable design of the connecting ring makes the installation process simple and quick, while the fixed plug rod ensures the stability of the connection. The sealing design between the connecting cylinder and the pipeline body effectively avoids the risk of oil and gas leakage and improves the safety of the pipeline system.

[0019] 2. The utility model further enhances the stability and sealing of the pipeline connection by setting a fixing ring and a reinforcement ring. The fixing ring is fixed to the pipeline body by fixing bolts, which not only ensures the stability of the fixing ring, but also enhances the overall strength of the pipeline. The abutment between the reinforcement ring and the pipeline surface effectively prevents the pipeline from being deformed or displaced when subjected to external forces.

[0020] 3. During the use of the utility model, when a leak occurs at the pipeline connection, the gas generated by the leak will flow into the reinforcement ring through the connecting hole on the fixed ring, and then enter the gas detection device through the connecting pipe. The gas detection device can quickly detect abnormal gas and activate the alarm to indicate the leak location, which greatly improves the efficiency and accuracy of leak detection and provides strong support for staff to quickly repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the first perspective of the present utility model;

[0022] Figure 2 It is a structural schematic diagram of the second sealing component in the utility model;

[0023] Figure 3 It is a structural schematic diagram of the connecting tube in the utility model;

[0024] Figure 4 It is a front cross-sectional view of the second sealing component in the present utility model.

[0025] In the figure: 1. Pipe body; 2. Second sealing assembly; 21. Fixing ring; 22. Reinforcement ring; 23. Fixing plate; 24. Screw hole; 25. Fixing bolt; 26. Sealing ring; 27. Connecting hole; 3. Support assembly; 31. Bottom plate; 32. Fixing column; 33. Connecting ring; 34. Connecting plate; 35. Fixing rod; 4. Gas detection device; 5. Connecting tube; 51. Fixing groove; 52. Sealing ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] For example, see Figure 1-4A pipeline sealing connection structure for oil field production, comprising two pipeline bodies 1, a connecting tube 5 is arranged between the two pipeline bodies 1, the two pipeline bodies 1 are connected through the connecting tube 5, a second sealing assembly 2 is also arranged at the joint of the two pipeline bodies 1 to assist the connecting tube 5 in sealing the pipeline bodies 1, a gas detection device 4 for monitoring the sealing state is also arranged on the second sealing assembly 2, sealing rings 52 are installed on both sides of the connecting tube 5, the two sealing rings 52 are respectively slidably engaged in the inner walls of the adjacent pipeline bodies 1, and fixing grooves 51 are also opened on both sides of the connecting tube 5, and the connecting tube 5 is engaged with the adjacent pipeline bodies 1 through the two fixing grooves 51;

[0028] When the device is needed, firstly, the connecting tube 5 is clamped on one end of one of the pipe bodies 1, so that the sealing ring 52 abuts against the inner wall of the pipe body 1, and at the same time, the pipe body 1 is clamped between the connecting tube 5 and the fixing groove 51, so that the connecting tube 5 is fixed on the pipe body 1. After being fixed, one end of the other pipe body 1 is clamped with the other end of the connecting tube 5, and the two pipe bodies 1 are preliminarily fixed by the connecting tube 5. After being fixed, the second sealing component 2 is clamped on the connecting tube 5 and the pipe body 1 to seal the pipe body 1 and the connecting tube 5.

[0029] By means of the gas detection device 4 provided on the second sealing component 2, the sealing performance of the second sealing component 2 and the connecting tube 5 can be monitored by the gas detection device 4 during use. When abnormal air flow is detected in the second sealing component 2, an early warning is promptly issued by the gas detection device 4 to notify the staff to carry out timely maintenance.

[0030] For example 2, please refer to Figure 1 , Figure 2 and Figure 4 The second sealing component 2 includes two fixing rings 21, which are respectively clamped on the top and bottom of the pipeline body 1. Both ends of the two second sealing components 2 are fixedly connected with reinforcement rings 22. Multiple reinforcement rings 22 are respectively clamped on the surface of the adjacent pipeline body 1. A fixing plate 23 is installed on the side where the two fixing rings 21 are close to each other. Both sides of the fixing plate 23 extend to the adjacent reinforcement ring 22 and are fixed to the adjacent reinforcement ring 22. Each fixing plate 23 is provided with a plurality of screw holes 24, and two upper and lower adjacent screw holes 24 are provided with fixing holes. Bolts 25, the two fixing rings 21 are fixed by a plurality of fixing bolts 25, and sealing rings 26 are fixedly connected to both sides of the two fixing rings 21, and the side of the sealing ring 26 close to the pipeline body 1 is in contact with the surface of the pipeline body 1, and a connecting hole 27 is also opened in the inner wall of one of the fixing rings 21, and the other end of the connecting hole 27 passes through one of the reinforcement rings 22 and extends to the surface of the reinforcement ring 22, and a connecting pipe is provided at the bottom of the gas detection device 4, and the connecting pipe is fixedly connected to the reinforcement ring 22 and communicated with the connecting hole 27 on the reinforcement ring 22;

[0031] When in use, firstly, the two fixing rings 21 are buckled on both sides of the pipeline body 1, so that the inner wall of the fixing ring 21 contacts the surface of the connecting tube 5, and the reinforcing rings 22 on both sides of the fixing ring 21 contact the surface of the pipeline body 1, and the fixing bolts 25 are sequentially passed through the screw holes 24 on the two fixing plates 23 and fixed, and the two fixing rings 21 are fixed by multiple fixing bolts 25, so that the support assembly 3 is firmly fixed on the pipeline body 1;

[0032] By providing two sealing rings 26 on the fixing ring 21, after being fixed, the sealing effect of the second sealing assembly 2 can be further enhanced by the sealing rings 26;

[0033] When a leak occurs at the connection between the two pipe bodies 1, the gas generated by the leak flows into the fixing ring 21 and flows into the reinforcement ring 22 through the connecting hole 27 opened on the fixing ring 21. Through the connecting pipe arranged at the other end of the connecting hole 27, the gas enters the gas detection device 4 through the connecting pipe. The gas detection device 4 detects abnormal gas and activates the alarm to indicate the leakage location, which facilitates the staff to quickly arrive at the site for maintenance.

[0034] For example 3, please refer to Figure 1 A support assembly 3 is also provided on the two pipe bodies 1. The support assembly 3 includes a bottom plate 31. A fixing column 32 is installed on the top of the bottom plate 31. Two connecting rings 33 are fixedly connected to the top of the fixing column 32. A connecting plate 34 is installed at one end of the two connecting rings 33. A plurality of mounting holes are opened on the connecting plate 34. A fixing rod 35 is provided on each mounting hole. The two connecting rings 33 are fixed by the plurality of fixing rods 35. The other ends of the two connecting rings 33 are hinged by a rotating shaft.

[0035] When connecting the two pipe bodies 1, first place the bottom plate 31 on the ground, remove the fixing plug rod 35 from the connecting plate 34, rotate the upper connecting ring 33 to make the connecting ring 33 rotate and open along the rotating shaft, place one of the pipe bodies 1 on the lower connecting ring 33, flip the upper connecting ring 33 to make the connecting ring 33 buckle on the pipe body 1, use the fixing plug rod 35 to pass through the mounting holes on the two connecting plates 34 in sequence and fix them, so that the two connecting rings 33 fix the pipe body 1, after fixing, install the connecting tube 5 at one end of the pipe body 1, place the other pipe body 1 on the connecting ring 33 in the same way, push the pipe body 1 to make it slide on the connecting ring 33 until the pipe body 1 is clamped and fixed with the other end of the connecting tube 5, after fixing, flip the connecting ring 33 to fix the pipe body 1 through the connecting ring 33, fix the two pipe bodies 1, and then fix the second sealing assembly 2 on the pipe body 1 to complete the connection of the two pipe bodies 1;

[0036] By setting up the support component 3, the pipe main body 1 can be supported by the support component 3 when in use, making the installation process more labor-saving. At the same time, by setting up the support component 3, the positions of the two pipe main bodies 1 can be kept horizontal by placing the pipe main body 1 on the support component 3 when in use, which is convenient for splicing and greatly improves the assembly efficiency.

[0037] Working principle: when connecting two pipe bodies 1, first place the bottom plate 31 on the ground, rotate the upper connecting ring 33 to make the connecting ring 33 rotate and open along the rotating shaft, place one of the pipe bodies 1 on the lower connecting ring 33, flip the upper connecting ring 33 to make the connecting ring 33 buckle on the pipe body 1, use the fixing rod 35 to fix the two connecting rings 33, after fixing, clamp the connecting tube 5 on one end of the pipe body 1, make the sealing ring 52 abut against the inner wall of the pipe body 1, and at the same time make the pipe body 1 clamp between the connecting tube 5 and the fixing groove 51, so that the connecting tube 5 is fixed on the pipe body 1, and place the other pipe body 1 in the connecting ring 33 on the other supporting assembly 3 in the same way, push the pipe body 1 to make the pipe body 1 slide on the connecting ring 33 until the pipe body 1 is clamped and fixed with the other end of the connecting tube 5, and after fixing, flip the connecting ring 33 to fix it through the fixing rod 35, so that the pipe body 1 is fixed on the supporting assembly 3, and the two pipe bodies 1 are fixed by the two supporting assemblies 3;

[0038] After fixing, buckle the two fixing rings 21 on both sides of the pipeline body 1, make the inner wall of the fixing ring 21 contact with the surface of the connecting tube 5, make the reinforcement rings 22 on both sides of the fixing ring 21 abut against the surface of the pipeline body 1, use the fixing bolts 25 to pass through the screw holes 24 on the two fixing plates 23 in sequence and fix them, fix the two fixing rings 21 by multiple fixing bolts 25, so that the support assembly 3 is firmly fixed on the pipeline body 1;

[0039] When a leak occurs at the connection between the two pipe bodies 1, the gas generated by the leak flows into the fixing ring 21 and flows into the reinforcement ring 22 through the connecting hole 27 opened on the fixing ring 21. Through the connecting pipe arranged at the other end of the connecting hole 27, the gas enters the gas detection device 4 through the connecting pipe. The gas detection device 4 detects abnormal gas and activates the alarm to indicate the leakage location, which facilitates the staff to quickly arrive at the site for maintenance.

[0040] It should be noted that the various devices in this application are common devices in the market, and can be selected according to specific needs during specific use. The circuit connection relationship of each device belongs to a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can implement it relatively easily. It belongs to the existing technology and will not be elaborated on.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing connection structure for oil field production pipelines, comprising two pipeline bodies (1), characterized in that: A connecting tube (5) is provided between the two pipeline bodies (1), the two pipeline bodies (1) are connected via the connecting tube (5), and a second sealing component (2) is also provided at the joint of the two pipeline bodies (1) to assist the connecting tube (5) in sealing the pipeline bodies (1); The second sealing component (2) is also provided with a gas detection device (4) for monitoring the sealing state.

2. The sealing connection structure for oil field production pipeline according to claim 1, characterized in that: The second sealing assembly (2) comprises two fixing rings (21), the two fixing rings (21) being respectively clamped on the top and bottom of the pipeline body (1), and both ends of the two second sealing assemblies (2) are fixedly connected with reinforcement rings (22), and the plurality of reinforcement rings (22) are respectively clamped on the surfaces of adjacent pipeline bodies (1).

3. The sealing connection structure for oil field production pipeline according to claim 2, characterized in that: A fixing plate (23) is installed on the side where the two fixing rings (21) are close to each other, and the two sides of the fixing plate (23) extend to the adjacent reinforcement ring (22) and are fixed to the adjacent reinforcement ring (22). Each of the fixing plates (23) is provided with a plurality of screw holes (24), and two upper and lower adjacent screw holes (24) are provided with fixing bolts (25), and the two fixing rings (21) are fixed to each other by the plurality of fixing bolts (25).

4. The sealing connection structure for oil field production pipeline according to claim 2, characterized in that: The two sides of the two fixing rings (21) are also fixedly connected with sealing rings (26), and the side of the sealing ring (26) close to the pipeline body (1) is in contact with the surface of the pipeline body (1). A connecting hole (27) is also opened in the inner wall of one of the fixing rings (21), and the other end of the connecting hole (27) passes through one of the reinforcement rings (22) and extends to the surface of the reinforcement ring (22); A connecting pipe is provided at the bottom of the gas detection device (4), and the connecting pipe is fixedly connected to the reinforcement ring (22) and communicates with the connecting hole (27) on the reinforcement ring (22).

5. The sealing connection structure for oil field production pipeline according to claim 1, characterized in that: Sealing rings (52) are installed on both sides of the connecting tube (5), and the two sealing rings (52) are respectively slidably engaged in the inner walls of the adjacent pipe bodies (1). Fixed grooves (51) are also provided on both sides of the connecting tube (5), and the connecting tube (5) is engaged with the adjacent pipe bodies (1) via the two fixed grooves (51).

6. The sealing connection structure for oil field production pipeline according to claim 1, characterized in that: A support assembly (3) is also provided on the two pipeline bodies (1).

7. The sealing connection structure for oil field production pipeline according to claim 6, characterized in that: The support assembly (3) comprises a base plate (31), a fixing column (32) is installed on the top of the base plate (31), two connecting rings (33) are fixedly connected to the top of the fixing column (32), a connecting plate (34) is installed at one end of the two connecting rings (33), a plurality of mounting holes are opened on the connecting plate (34), each of the mounting holes is provided with a fixing rod (35), the two connecting rings (33) are fixed to each other by the plurality of fixing rods (35), and the other ends of the two connecting rings (33) are hinged by a rotating shaft.

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