A erosion-resistant throttling and well-killing manifold

Abstract

The present invention discloses an anti-erosion throttling and well-killing manifold, comprising several groups of anti-erosion chambers disposed on a well seat. The anti-erosion chambers are arranged in series, with a pipeline disposed on the group of anti-erosion chambers farthest from the well seat. Connection ports are provided between the anti-erosion chambers and adjacent anti-erosion chambers. The anti-erosion chambers are used to mitigate the impact of liquid entering the pipeline. By disposing the anti-erosion chambers between the pipeline and the well seat, the anti-erosion chambers mitigate the impact of liquid entering the pipeline from the well seat, allowing liquid entering the pipeline to flow more smoothly, thereby extending the service life of the manifold and reducing the probability of safety accidents.

Description

Technical Field

[0001] The invention relates to the technical field of well-killing manifolds, in particular to an anti-erosion throttling well-killing manifold. Background Art

[0002] During the production operation of oil and gas wells in oil fields, in order to prevent the occurrence of sudden accidents such as well kicks and blowouts and to effectively control the pressure of oil and gas wells, a throttling and well-killing manifold must be equipped.

[0003] The main function of the well kill manifold is to use mud to control well kicks and blowouts. The specific performance is: first, when the wellhead is fully sealed with a gate, heavy mud is forcibly pumped into the wellbore through the well kill manifold to implement the well kill operation; second, when a blowout occurs, clean water is forcibly injected into the wellhead through the well kill manifold to prevent combustion and fire; third, when a blowout has occurred and a fire has occurred, fire extinguishing agent is forcibly injected into the wellbore through the well kill manifold to help extinguish the fire.

[0004] The well-killing manifold is easily eroded during operation. The high-pressure liquid in the well impacts the manifold, which reduces the service life of the manifold and makes safety accidents more likely to occur. Summary of the Invention

[0005] The present invention provides an erosion-resistant throttling and well-killing manifold to solve the problems raised in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An anti-erosion throttling and killing manifold comprises a plurality of groups of anti-erosion chambers arranged on a well seat, wherein the plurality of anti-erosion chambers are arranged in series, a group of anti-erosion chambers farthest from the well seat is provided with a pipeline, and a communication port is provided between the anti-erosion chamber and adjacent anti-erosion chambers;

[0008] The anti-erosion chamber is used to mitigate the impact of liquid entering the pipeline.

[0009] Preferably, a resistance adjustment component is provided in the anti-erosion bin, and the resistance adjustment component includes a symmetrical anti-impact plate, the anti-impact plate is rotatably connected to a fixing seat, the fixing seat is fixedly connected to the anti-erosion bin, and a limiting flow plate is provided on one side of the anti-impact plate;

[0010] The symmetrically arranged anti-impact plate can be closed at one end away from the fixing seat.

[0011] Preferably, an adjustment plate is rotatably connected to the fixing seat, a groove is provided on the adjustment plate, and the anti-impact plate is connected to the adjustment plate through the groove.

[0012] Preferably, the impact-resistant plate comprises a first plate and a second plate arranged in parallel, and an impact-resistant member is arranged between the first plate and the second plate;

[0013] The anti-impact parts are provided in a plurality of groups, and the anti-impact parts are evenly distributed between the first plate and the second plate.

[0014] Preferably, the impact-resistant member includes a first fixing plate and a second fixing plate, wherein the first fixing plate and the second fixing plate are fixedly connected to the facing sides of the first plate and the second plate, respectively, and the facing sides of the first fixing plate and the second fixing plate are each provided with two sets of impact-resistant rotating shafts, and one end of the first elastic plate and the second elastic plate are rotatably connected to the two sets of impact-resistant rotating shafts respectively;

[0015] The first elastic plate and the second elastic plate are both in an L-shape, and the postures of the first elastic plate and the second elastic plate are opposite;

[0016] The first elastic plate and the second elastic plate are in a cross shape, and the first elastic plate abuts against the second elastic plate at the intersection thereof.

[0017] Preferably, limit fixing plates are provided at both ends of the impact-resistant rotating shaft, the limit fixing plates are fixedly connected to the first fixing plate and the second fixing plate, and the impact-resistant rotating shaft is fixedly connected to the limit fixing plates.

[0018] Preferably, a rotating shaft is rotatably connected in the fixing seat, a rotating seat is rotatably connected on the rotating shaft, and the rotating seat is fixedly connected to the lower end of the current limiting plate.

[0019] The cam is fixedly mounted on the support frame of the second control stand, and the cam is fixedly mounted on the support frame of the second control stand, wherein the cam is fixedly mounted on the support frame of the second control stand, and the cam is fixedly mounted on the support frame of the second control stand.

[0020] A boss is provided on the triggering member.

[0021] Preferably, the convex surface of the boss faces the inner side of the resistance adjustment component.

[0022] Preferably, a spring is provided on the second balance bar, a limiting plate is provided on one side of the spring, the limiting plate is fixedly connected to the second balance bar, and the spring is located between the limiting plate and the protective connecting rod.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] The present application sets an anti-erosion chamber between the pipeline and the well seat, which reduces the impact when the liquid enters the pipeline from the well seat, so that the liquid entering the pipeline is smoother, which helps to increase the service life of the manifold and reduce the probability of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the resistance adjustment component structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the connection structure of the adjustment plate and the anti-impact plate of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the fixing seat of the present invention;

[0029] Figure 5 This is a schematic diagram of the drive structure of the adjustment plate of the present invention;

[0030] Figure 6 It is a partial schematic diagram of the regulating plate driving structure of the present invention;

[0031] Figure 7 It is a schematic structural diagram of the adjustment plate of the present invention;

[0032] Figure 8 It is a schematic structural diagram of the impact-resistant component of the present invention.

[0033] In the figure: 1. well seat; 2. anti-erosion bin; 3. pipeline; 4. resistance adjustment component; 5. fixed seat; 6. flow limiting plate; 7. adjustment plate; 8. anti-impact plate; 9. groove; 10. slide rail; 11. protection rod; 12. gripper; 13. rotating seat; 14. rotating shaft; 15. protection connecting rod; 16. trigger member; 17. slide rod; 18. adjustment linkage rod; 19. first balance bar; 20. second balance bar; 21. spring; 22. boss; 23. slide groove; 24. first plate; 25. anti-impact member; 26. second plate; 27. first fixed plate; 28. second fixed plate; 29. ​​limit fixing plate; 30. anti-impact rotating shaft; 31. first elastic plate; 32. second elastic plate; 33. fixed block. DETAILED DESCRIPTION

[0034] In the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish between protective components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] Example 1

[0036] Please refer to Figure 1 A erosion-resistant throttling and killing manifold comprises a plurality of erosion-resistant chambers 2 arranged on a well seat 1, wherein the plurality of erosion-resistant chambers 2 are arranged in series, a pipe 3 is provided on the group of erosion-resistant chambers 2 farthest from the well seat 1, and a communication port is provided between the erosion-resistant chambers 2 and adjacent erosion-resistant chambers 2;

[0037] The anti-erosion chamber 2 is used to mitigate the impact of liquid entering the pipeline 3.

[0038] The working principle and beneficial effects of the above scheme:

[0039] The present application sets an anti-erosion chamber 2 between the pipeline 3 and the well seat 1, and uses the anti-erosion chamber 2 to slow down the impact when the liquid enters the pipeline 3 from the well seat 1, so that the liquid entering the pipeline 3 is smoother, which helps to increase the service life of the manifold and reduce the probability of safety accidents.

[0040] Example 2

[0041] Please refer to Figure 1 、 Figure 7 、 Figure 8 On the basis of Example 1, a resistance adjustment component 4 is provided in the anti-erosion bin 2, and the resistance adjustment component 4 includes a symmetrical anti-impact plate 8, the anti-impact plate 8 is rotatably connected to the fixing seat 5, and the fixing seat 5 is fixedly connected to the anti-erosion bin 2, and a limiting flow plate 6 is provided on one side of the anti-impact plate 8;

[0042] The end of the symmetrically arranged anti-impact plate 8 away from the fixing seat 5 can be closed.

[0043] An adjusting plate 7 is rotatably connected to the fixing seat 5 . A groove 9 is provided on the adjusting plate 7 . The anti-impact plate 8 is connected to the adjusting plate 7 via the groove 9 .

[0044] The anti-impact plate 8 includes a first plate 24 and a second plate 26 arranged in parallel, and an anti-impact member 25 is arranged between the first plate 24 and the second plate 26;

[0045] The anti-impact members 25 are provided in a plurality of groups, and the anti-impact members 25 are evenly distributed between the first plate 24 and the second plate 26 .

[0046] The anti-impact member 25 includes a first fixing plate 27 and a second fixing plate 28. The first fixing plate 27 and the second fixing plate 28 are fixedly connected to the facing sides of the first plate 24 and the second plate 26, respectively. Two sets of anti-impact rotating shafts 30 are provided on the facing sides of the first fixing plate 27 and the second fixing plate 28. One end of the first elastic plate 31 and the second elastic plate 32 are rotatably connected to the two sets of anti-impact rotating shafts 30, respectively.

[0047] The first elastic plate 31 and the second elastic plate 32 are both in an "L" shape, and the postures of the first elastic plate 31 and the second elastic plate 32 are opposite;

[0048] The first elastic plate 31 and the second elastic plate 32 are in a cross shape, and the first elastic plate 31 and the second elastic plate 32 abut against each other at the intersection.

[0049] Limit fixing plates 29 are provided at both ends of the anti-impact rotating shaft 30 . The limit fixing plates 29 are fixedly connected to the first fixing plate 27 and the second fixing plate 28 . The anti-impact rotating shaft 30 is fixedly connected to the limit fixing plates 29 .

[0050] The working principle and beneficial effects of the above scheme:

[0051] When the liquid in the well seat 1 gushes upward, if it directly acts on the pipeline 3, it will cause a huge impact on the pipeline 3. By setting the resistance adjustment component 4 in the anti-erosion chamber 2 to block the gushing liquid, and the resistance adjustment component 4 adaptively adjusts its opening and closing range as the liquid surges, it helps to ensure the flux of the pipeline 3 while ensuring the safety of the pipeline 3.

[0052] When the liquid acts on the resistance adjustment component 4, it will first impact the second plate 26, compressing the space between the first plate 24 and the second plate 26. At this time, the anti-impact part 25 will be deformed, and the first elastic plate 31 and the second elastic plate 32 will produce a certain degree of elastic bending, which will weaken the impact in the first step. The impact of the liquid on the second plate 26 will also cause the adjustment plate 7 to rotate a certain angle, so that the liquid enters the next group of anti-erosion tanks 2 from between the two groups of anti-impact plates 8 for adjustment. Through several groups of adjustments, the liquid becomes smoother, which helps to protect the pipeline 3.

[0053] Example 3

[0054] Please refer to Figures 1-6On the basis of Example 1, a resistance adjustment component 4 is provided in the anti-erosion bin 2, and the resistance adjustment component 4 includes a symmetrical anti-impact plate 8, the anti-impact plate 8 is rotatably connected to the fixing seat 5, and the fixing seat 5 is fixedly connected to the anti-erosion bin 2, and a limiting flow plate 6 is provided on one side of the anti-impact plate 8;

[0055] The end of the symmetrically arranged anti-impact plate 8 away from the fixing seat 5 can be closed.

[0056] A rotating shaft 14 is rotatably connected in the fixing seat 5 , a rotating seat 13 is rotatably connected on the rotating shaft 14 , and the rotating seat 13 is fixedly connected to the lower end of the flow limiting plate 6 .

[0057] A first balancing rod 19 is provided in the adjustment plate 7, and both ends of the first balancing rod 19 are connected to an adjusting linkage rod 18, and the other end of the adjusting linkage rod 18 is rotatably connected to the slide rod 17, and the slide rod 17 is slidably connected to the slide rail 10, and the slide rail 10 is fixedly connected to the flow limiting plate 6. The lower end of the slide rod 17 is fixedly connected to the trigger member 16, and a slide groove 23 is provided on the trigger member 16, and a second balancing rod 20 is slidably connected in the slide groove 23. The second balancing rod 20 is rotatably connected to the flow limiting plate 6, and the two ends of the second balancing rod 20 are movably connected to the protection link 15, and a gripper 12 is provided on the protection link 15, and the gripper 12 is clamped on the fixed block 33, and the fixed block 33 is fixedly connected to the inner wall of the fixed seat 5. A protection rod 11 is provided between the two groups of fixed blocks 33, and the protection rod 11 and the fixed block 33 are connected by a spring;

[0058] A boss 22 is provided on the trigger member 16 .

[0059] The convex surface of the boss 22 faces the inner side of the resistance adjustment component 4 .

[0060] The second balance bar 20 is provided with a spring 21 . A limiting piece is provided on one side of the spring 21 . The limiting piece is fixedly connected to the second balance bar 20 . The spring 21 is located between the limiting piece and the protection link 15 .

[0061] The working principle and beneficial effects of the above scheme:

[0062] When the impact-resistant plate 8 is impacted, the adjustment plate 7 is deflected. The end of the adjustment linkage rod 18 connected to the first balance rod 19, which is away from the first balance rod 19, moves closer to the slide rod 17, causing the slide rod 17 to slide along the slide rail 10, driving the trigger member 16 to move downward, thereby satisfying the deflection of the adjustment plate 7.

[0063] When the impact exceeds a certain amplitude, the trigger 16 will continue to move downward, squeezing the spring 21 and moving the boss 22 to the side of the protective link 15, so that the gripper 12 connected to the protective link 15 will be disengaged from the fixed block 33 and act on the protective rod 11. Since the protective rod 11 and the fixed block 33 are connected by a spring, the large impact causes the gripper 12 to drive the protective rod 11 away from the fixed block 33 and causes the limiting plate 6 and the adjustment plate 7 to rotate around the rotating shaft 14, thereby avoiding damage to the resistance adjustment component 4 caused by excessive impact.

[0064] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A erosion-resistant throttling and killing manifold, characterized in that: It comprises a plurality of groups of anti-erosion chambers (2) arranged on a well seat (1), wherein the plurality of anti-erosion chambers (2) are arranged in series, a pipeline (3) is provided on a group of anti-erosion chambers (2) farthest from the well seat (1), and a communication port is provided between the anti-erosion chambers (2) and adjacent anti-erosion chambers (2); The anti-erosion chamber (2) is used to mitigate the impact of liquid entering the pipeline (3); A resistance adjustment component (4) is provided in the anti-erosion bin (2), and the resistance adjustment component (4) includes a symmetrical anti-impact plate (8). The anti-impact plate (8) is rotatably connected to a fixed seat (5), and the fixed seat (5) is fixedly connected to the anti-erosion bin (2). A flow limiting plate (6) is provided on one side of the anti-impact plate (8); The symmetrically arranged impact-resistant plate (8) is capable of being closed at one end away from the fixing seat (5); An adjusting plate (7) is rotatably connected to the fixing seat (5), a groove (9) is provided on the adjusting plate (7), and the anti-impact plate (8) is connected to the adjusting plate (7) via the groove (9); The impact-resistant plate (8) comprises a first plate (24) and a second plate (26) arranged in parallel, and an impact-resistant member (25) is arranged between the first plate (24) and the second plate (26); Several groups of impact-resistant parts (25) are provided, and the impact-resistant parts (25) are evenly distributed between the first plate (24) and the second plate (26); The impact-resistant member (25) includes a first fixed plate (27) and a second fixed plate (28), wherein the first fixed plate (27) and the second fixed plate (28) are fixedly connected to opposite sides of the first plate (24) and the second plate (26), respectively. Two groups of impact-resistant rotating shafts (30) are provided on the opposite sides of the first fixed plate (27) and the second fixed plate (28), and one end of the first elastic plate (31) and the second elastic plate (32) are rotatably connected to the two groups of impact-resistant rotating shafts (30). The first elastic plate (31) and the second elastic plate (32) are both L-shaped, and the postures of the first elastic plate (31) and the second elastic plate (32) are opposite; The first elastic plate (31) and the second elastic plate (32) are in a cross shape, and the first elastic plate (31) and the second elastic plate (32) abut against each other at the intersection.

2. The erosion-resistant throttling and killing manifold according to claim 1, characterized in that: Limit fixing plates (29) are provided at both ends of the impact-resistant rotating shaft (30), the limit fixing plates (29) are fixedly connected to the first fixing plate (27) and the second fixing plate (28), and the impact-resistant rotating shaft (30) is fixedly connected to the limit fixing plates (29).

3. The erosion-resistant throttling and killing manifold according to claim 2, characterized in that: A rotating shaft (14) is rotatably connected inside the fixed seat (5), a rotating seat (13) is rotatably connected on the rotating shaft (14), and the rotating seat (13) is fixedly connected to the lower end of the flow limiting plate (6).

4. The erosion-resistant throttling and killing manifold according to claim 3, characterized in that: A first balancing rod (19) is provided in the regulating plate (7), and both ends of the first balancing rod (19) are connected to an adjusting linkage rod (18). The other end of the adjusting linkage rod (18) is rotatably connected to the slide rod (17), and the slide rod (17) is slidably connected to the slide rail (10). The slide rail (10) is fixedly connected to the current limiting plate (6). The lower end of the slide rod (17) is fixedly connected to a trigger member (16). A slide groove (23) is provided on the trigger member (16). The slide groove (23) is slidably connected to the trigger member (16). A second balancing rod (20), the second balancing rod (20) is rotatably connected to the flow limiting plate (6), both ends of the second balancing rod (20) are movably connected to the protection connecting rod (15), a gripper (12) is provided on the protection connecting rod (15), the gripper (12) is clamped on the fixed block (33), the fixed block (33) is fixedly connected to the inner wall of the fixed seat (5), a protection rod (11) is provided between the two groups of fixed blocks (33), and the protection rod (11) and the fixed block (33) are connected by a spring; A boss (22) is provided on the trigger member (16).

5. The erosion-resistant throttling and killing manifold according to claim 4, characterized in that: The convex surface of the boss (22) faces the inner side of the resistance adjustment component (4).

6. The erosion-resistant throttling and killing manifold according to claim 4, characterized in that: A spring (21) is provided on the second balancing rod (20), a limiting piece is provided on one side of the spring (21), the limiting piece is fixedly connected to the second balancing rod (20), and the spring (21) is located between the limiting piece and the protection connecting rod (15).

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