A dual-channel high-pressure fracturing manifold

Abstract

The application discloses a double-channel high-pressure fracturing manifold, which comprises first main pipelines and second main pipelines, the first main pipelines and the second main pipelines are provided in two groups, the two groups of the first main pipelines and the second main pipelines are connected through switches, and the switches are used for conducting one group of the first main pipelines and the second main pipelines. According to the application, two groups of pipelines are arranged, the first main pipelines and the second main pipelines are arranged in parallel, and the switches are used for realizing selective conduction of the first main pipelines and the second main pipelines. When the filter screen of one of the pipelines is dirty and blocked, the rotating block is rotated, the connecting part is butted against the other pipeline, at the moment, the filter screen of the dirty and blocked pipeline can be cleaned and replaced, and the conveying of the pipeline is not affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fracturing manifold, in particular to a double-channel high-pressure fracturing manifold. BACKGROUND

[0002] In the production process of oil and gas, fracturing manifold is used to transport oil and gas, so that formation sand and fracturing sand will reach the ground with oil and gas. Sand production in oil and gas wells will cause serious abrasion of surface and downhole equipment, and even cause well blocking. Sand washing, pump inspection and surface tank cleaning will increase the maintenance workload. Sand burying oil layer or wellbore sand plugging will cause production stoppage. In severe cases, well wall collapse and damage to oil casing will increase the cost of oil and gas production.

[0003] The existing filter structure applied to the fracturing manifold generally sets a filter screen pipe or screen to achieve filtering. However, the filter screen set in a single pipe is inconvenient to replace after being blocked, and cleaning or replacement can be performed only after the pipe transportation is stopped, which affects the efficiency. SUMMARY

[0004] The present application provides a double-channel high-pressure fracturing manifold to solve the problems in the background art.

[0005] To achieve the above object, the present application is implemented by the following technical scheme:

[0006] A double-channel high-pressure fracturing manifold, comprising a first main pipe and a second main pipe, wherein two groups of the first main pipe and the second main pipe are provided, and the two groups of the first main pipe and the second main pipe are connected through a switch, and the switch is used to conduct one group of the first main pipe and the second main pipe.

[0007] Preferably, a rotating shaft is arranged in the switch, a rotating block is double-rotatably connected to the rotating shaft, a communication part is arranged in the rotating block, the communication part is communicated with one group of the first main pipe and the second main pipe, and the other group of the first main pipe and the second main pipe abuts against the surface of the rotating block.

[0008] Preferably, the first main pipe and the second main pipe are connected with the switch through a connecting assembly, the connecting assembly comprises a first interface connected with the main pipe and a second interface connected with the communication part, the first interface is arranged on a first connecting shell, the second interface is arranged on a second connecting shell, a connecting port is arranged at the other end of the second connecting shell, and the first connecting shell can be connected in the connecting port.

[0009] Preferably, a limiting shaft is fixedly connected in the first connecting shell, a plugging head is slidably connected on the limiting shaft, the plugging head can seal the lower end of the first connecting shell, a first spring is arranged between the plugging head and the upper end of the first connecting shell, and the first spring is sleeved on the limiting shaft.

[0010] The first connecting shell is provided with a protrusion outside.

[0011] Preferably, the second connecting shell is fixedly connected with an abutting rod, the outer periphery of the abutting rod is provided with a sealing sleeve, the sealing sleeve is slidably connected in the second connecting shell, the upper end of the sealing sleeve is provided with an opening, and the upper end of the abutting rod can seal the opening of the upper end of the sealing sleeve.

[0012] A second spring is arranged between the sealing sleeve and the lower end of the second connecting shell, and the second spring is sleeved on the abutting rod.

[0013] The outer side of the sealing sleeve is provided with a clamping buckle, the clamping buckle is slidably connected to the inner wall of the second connecting shell, the clamping buckle is obliquely arranged, and the lower end of the clamping buckle is connected with a third spring.

[0014] Preferably, an adjusting assembly is arranged between the first main pipeline and the second main pipeline, the adjusting assembly comprises an adjusting bin, an inlet and an outlet are arranged on the adjusting bin, the inlet is in communication with the first main pipeline, and the outlet is in communication with the second main pipeline.

[0015] Preferably, a trigger rod is arranged in the outlet, the trigger rod penetrates through the side wall of the outlet, the trigger rod is slidably connected to the side wall of the outlet, one end of the trigger rod in the outlet is rotatably connected with a crushing plate, the crushing plate is obliquely arranged in the outlet, and the crushing plate is slidably connected with the inner wall of the outlet.

[0016] The trigger rod is inserted into the pressure box, a fourth spring is arranged between the trigger rod and the pressure box, and the pressure box is fixedly connected to the adjusting bin.

[0017] A linkage rod is fixedly connected to the trigger rod, the linkage rod is fixedly connected with a rack, the rack is engaged with a gear, the rotating shaft of the gear penetrates through the side wall of the outlet and is fixedly connected with an adjusting ball, and the gear is fixedly connected with the adjusting ball.

[0018] A through hole is arranged at the center of the adjusting ball, and the adjusting ball is rotatably connected to the outlet.

[0019] Preferably, an adjusting impeller is arranged in the adjusting bin, the adjusting impeller is fixedly connected with an adjusting shaft, and the adjusting shaft is rotatably connected to the adjusting bin.

[0020] A filter screen is arranged on the outer periphery of the adjusting impeller, and the filter screen is located between the inlet and the outlet.

[0021] The adjusting rotating shaft is provided with a rotating disc, the adjusting rotating shaft is rotationally connected to the cavity inside the side wall of the adjusting bin, the rotating disc is provided with a sliding groove for accommodating a trigger sliding rod, the sliding groove of the rotating disc is fixedly connected with an electromagnet, a fifth spring is arranged between the electromagnet and the trigger sliding rod, and the rotating disc is provided with a protruding block;

[0022] One side of the rotating disc is provided with a pressing head abutting against the rotating disc, the pressing head is fixedly connected to a striking rod, the striking rod penetrates through the side wall of the adjusting bin, the striking rod is fixedly connected with a striking head, and the striking head is located on one side of the filter screen;

[0023] A sixth spring is arranged between the pressing head and the side wall of the adjusting bin.

[0024] Preferably, the striking rod is fixedly connected with a pressing plate, a liquid infusion pipeline is arranged in the cavity between the pressing plate and the side wall of the adjusting bin, the liquid infusion pipeline is communicated with a cleaning liquid bin, the cleaning liquid bin is fixedly connected to the adjusting bin, and a hole leading to the filter plate is arranged in the cavity between the pressing plate and the side wall of the adjusting bin.

[0025] Preferably, an electric trigger is arranged between the trigger rod and the pressure box, and the electric trigger is connected with the electromagnet.

[0026] Compared with the prior art, the present application has at least the following beneficial effects:

[0027] The present application is provided with two groups of pipelines, the first main pipeline and the second main pipeline are arranged in parallel, and the first main pipeline and the second main pipeline are selectively conducted through the switcher, when the filter screen of one of the pipelines is dirty and blocked, the rotating block is rotated to make the connecting part butt joint with the other pipeline, at this time, the filter screen of the pipeline with dirt and blockage can be cleaned and replaced, and the pipeline conveying will not be affected. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic view of the main structure of the present application;

[0029] Figure 2 It is a schematic view of the connecting assembly structure of the present application;

[0030] Figure 3 It is a schematic view of the adjusting assembly structure of the present application;

[0031] Figure 4 It is a schematic view of the adjusting assembly structure of the present application;

[0032] Figure 5 It is a schematic view of the striking rod connecting structure of the present application;

[0033] Figure 6 It is a schematic view of the rotating disc structure of the present application.

[0034] In the figure: 1, first main pipeline; 2, second main pipeline; 3, switcher; 4, rotating shaft; 5, rotating block; 6, communication part; 7, first interface; 8, second interface; 9, first connecting shell; 10, protrusion; 11, limiting shaft; 12, plugging head; 13, first spring; 14, connecting port; 15, second connecting shell; 16, abutting rod; 17, sealing sleeve; 18, second spring; 19, third spring; 20, clamping buckle; 33, inlet; 34, adjusting impeller; 35, adjusting bin; 36, adjusting rotating shaft; 37, outlet; 38, trigger rod; 39, pressure box; 40, fourth spring; 41, rack; 42, adjusting ball; 43, cleaning liquid bin; 44, electromagnet; 45, striking head; 46, trigger slide rod; 47, fifth spring; 48, gear; 49, first rod; 50, extrusion head; 51, sixth spring; 52, pressing plate; 53, infusion pipeline; 54, striking rod. DETAILED DESCRIPTION

[0035] In the present application, the description such as "first", "second" and the like is only for the purpose of description, and is not intended to particularly indicate the order or sequence, nor to limit the present application, which is merely to distinguish the protective components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features of various embodiments can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0036] Embodiment 1

[0037] Please refer to Figure 1 A double-channel high-pressure fracturing manifold, comprising a first main pipeline 1 and a second main pipeline 2, the first main pipeline 1 and the second main pipeline 2 are both provided with two groups, the two groups of the first main pipeline 1 and the second main pipeline 2 are connected through a switcher 3, and the switcher 3 is used for conducting one of the first main pipeline 1 and the second main pipeline 2.

[0038] The switcher 3 is provided with a rotating shaft 4, the rotating shaft 4 is double-connected with a rotating block 5, the rotating block 5 is provided with a communication part 6, the communication part 6 is communicated with one of the first main pipeline 1 and the second main pipeline 2, and the other group of the first main pipeline 1 and the second main pipeline 2 abuts on the surface of the rotating block 5.

[0039] The working principle and beneficial effects of the above scheme are as follows:

[0040] The application sets two groups of pipelines, the first main pipeline 1 and the second main pipeline 2 are arranged in parallel, and the first main pipeline 1 and the second main pipeline 2 are selectively conducted through the switcher 3. When the filter screen of one of the pipelines is dirty and blocked, the rotating block 5 is rotated to make the connecting part 6 butt against the other pipeline. At this time, the filter screen of the pipeline can be cleaned and replaced without affecting the conveying of the pipeline.

[0041] Embodiment 2

[0042] Please refer to Figure 2 On the basis of embodiment 1, the first main pipeline 1 and the second main pipeline 2 are connected with the switcher 3 through the connecting assembly. The connecting assembly comprises a first interface 7 connected with the main pipeline and a second interface 8 connected with the connecting part 6. The first interface 7 is arranged on the first connecting shell 9, and the second interface 8 is arranged on the second connecting shell 15. The second connecting shell 15 is provided with a connecting port 14 at the other end, and the first connecting shell 9 can be connected in the connecting port 14.

[0043] The first connecting shell 9 is fixedly connected with a limiting shaft 11. A plugging head 12 is slidably connected on the limiting shaft 11. The plugging head 12 can seal the lower end of the first connecting shell 9. A first spring 13 is arranged between the plugging head 12 and the upper end of the first connecting shell 9. The first spring 13 is sleeved on the limiting shaft 11.

[0044] The first connecting shell 9 is provided with a protrusion 10 on the outer side.

[0045] The second connecting shell 15 is fixedly connected with an abutting rod 16. A sealing sleeve 17 is arranged on the outer periphery of the abutting rod 16. The sealing sleeve 17 is slidably connected in the second connecting shell 15. An opening is arranged on the upper end of the sealing sleeve 17. The upper end of the abutting rod 16 can seal the opening on the upper end of the sealing sleeve 17.

[0046] A second spring 18 is arranged between the sealing sleeve 17 and the lower end of the second connecting shell 15. The second spring 18 is sleeved on the abutting rod 16.

[0047] A clamping buckle 20 is arranged on the outer side of the sealing sleeve 17. The clamping buckle 20 is slidably connected to the inner wall of the second connecting shell 15. The clamping buckle 20 is arranged obliquely. A third spring 19 is connected to the lower end of the clamping buckle 20.

[0048] The working principle and beneficial effects of the above scheme are as follows:

[0049] When the first main pipeline 1, the second main pipeline 2 and the switcher 3 are butt jointed, the butt joint is carried out through the connecting assembly, which is convenient and fast.

[0050] The first connecting shell 9 is inserted into the connecting port 14, the end surface of the first connecting shell 9 is in contact with the sealing sleeve 17, the sealing sleeve 17 is extruded, and after overcoming the elastic force of the second spring 18, the sealing sleeve 17 is moved to be separated from the upper end of the abutting rod 16, at this time, the sealing state between the abutting rod 16 and the sealing sleeve 17 is released, and conduction is realized;

[0051] In this process, the abutting rod 16 extrudes the plugging head 12, the plugging head 12 slides to the inside of the first connecting shell 9 by overcoming the elastic force of the first spring 13, the plugging head 12 is separated from the end surface of the first connecting shell 9, the sealing state between the plugging head 12 and the first connecting shell 9 is released, and conduction is realized;

[0052] The protrusion 10 on the outside of the first connecting shell 9 passes through the clamping buckle 20 during the insertion process and extrudes the clamping buckle 20, so that the clamping buckle 20 is retracted by overcoming the elastic force of the third spring 19, when the protrusion 10 completely passes through the clamping buckle 20, the clamping buckle 20 is reset under the elastic force of the third spring 19 and is clamped on the protrusion 10, the fixation of the first connecting shell 9 and the second connecting shell 15 is completed, that is, the connection of the first main pipeline 1, the second main pipeline 2 and the switch 3 is completed;

[0053] When the connection assembly of the present application is used to connect the first main pipeline 1, the second main pipeline 2 and the switch 3, the pipeline will be conducted only after the connection of the first main pipeline 1, the second main pipeline 2 and the switch 3 is completed, and when the connection is being performed, the ports of the first main pipeline 1 and the second main pipeline 2 will be kept sealed, and the communication part 6 of the switch 3 will also be kept sealed, effectively preventing the leakage of substances in the pipeline.

[0054] Embodiment 3

[0055] Please refer to Figures 3-6 On the basis of embodiment 1, an adjusting assembly is arranged between the first main pipeline 1 and the second main pipeline 2, the adjusting assembly comprises an adjusting bin 35, an inlet 33 and an outlet 37 are arranged on the adjusting bin 35, the inlet 33 is in communication with the first main pipeline 1, and the outlet 37 is in communication with the second main pipeline 2.

[0056] A trigger rod 38 is arranged in the outlet 37, the trigger rod 38 penetrates the side wall of the outlet 37, the trigger rod 38 is slidingly connected to the side wall of the outlet 37, one end of the trigger rod 38 located in the outlet 37 is rotationally connected with a crushing plate, the crushing plate is obliquely arranged in the outlet 37, and the crushing plate is slidingly connected with the inner wall of the outlet 37;

[0057] The trigger rod 38 is inserted into a pressure box 39, a fourth spring 40 is arranged between the trigger rod 38 and the pressure box 39, and the pressure box 39 is fixedly connected to the adjusting bin 35;

[0058] The trigger lever 38 is fixedly connected with a linkage lever 49, the linkage lever 49 is fixedly connected with a rack 41, the rack 41 is engaged with a gear 48, the rotating shaft of the gear 48 is fixedly connected with an adjusting ball 42 through the side wall of the outlet 37, and the gear 48 is fixedly connected with the adjusting ball 42.

[0059] The adjusting ball 42 is provided with a through hole at the center, and the adjusting ball 42 is rotatably connected to the outlet 37.

[0060] The adjusting bin 35 is provided with an adjusting impeller 34, the adjusting impeller 34 is fixedly connected to an adjusting rotating shaft 36, and the adjusting rotating shaft 36 is rotatably connected to the adjusting bin 35.

[0061] The adjusting impeller 34 is provided with a filter screen on the outer periphery, and the filter screen is located between the inlet 33 and the outlet 37.

[0062] The adjusting rotating shaft 36 is provided with a rotating disc on the outer periphery, the adjusting rotating shaft 36 is rotatably connected to the cavity inside the side wall of the adjusting bin 35, the rotating disc is provided with a sliding groove for accommodating a trigger sliding rod 46, the sliding groove of the rotating disc is fixedly connected with an electromagnet 44, the fifth spring 47 is arranged between the electromagnet 44 and the trigger sliding rod 46, and the rotating disc is provided with a protruding block.

[0063] One side of the rotating disc is provided with a pressing head 50, the pressing head 50 abuts against the rotating disc, the pressing head 50 is fixedly connected to a striking lever 54, the striking lever 54 penetrates through the side wall of the adjusting bin 35, the striking lever 54 is fixedly connected with a striking head 45, and the striking head 45 is located on one side of the filter screen.

[0064] The sixth spring 51 is arranged between the pressing head 50 and the side wall of the adjusting bin 35.

[0065] The pressing plate 52 is fixedly connected to the striking lever 54, the cavity between the pressing plate 52 and the side wall of the adjusting bin 35 is provided with a liquid infusion pipeline 53, the liquid infusion pipeline 53 is communicated with a cleaning liquid bin 43, the cleaning liquid bin 43 is fixedly connected to the adjusting bin 35, and the cavity between the pressing plate 52 and the side wall of the adjusting bin 35 is provided with a hole leading to the filter plate.

[0066] The electric trigger is arranged between the trigger lever 38 and the pressure box 39, and the electric trigger is connected with the electromagnet 44.

[0067] The working principle and beneficial effects of the above scheme are as follows:

[0068] In the use of the pipeline, when the substances in the pipeline flow through the bending section or the reducing section at too high a flow rate, the pipeline will be impacted, and in severe cases, the pipeline will be damaged, causing leakage. By adjusting the flow rate of the substances in the pipeline, such situations can be well inhibited.

[0069] After the material enters the adjusting bin 35 through the inlet 33, it will flow out through the outlet 37, and when the flow rate through the outlet 37 is too fast, the pressure plate will be extruded and crushed, the trigger lever 38 will be moved outwards against the pressure of the fourth spring 40, and the gear 48 will be driven to rotate through the rack 41 fixed with the trigger lever 38, and then the adjusting ball 42 in the outlet 37 will be rotated, the through hole in the center of the adjusting ball 42 is partially blocked by the inner wall of the outlet 37, that is, the size of the through hole is changed, so that the material flowing through the outlet 37 is reduced, the pressure is reduced, and the flow rate is slowed down;

[0070] When the flow rate at the outlet 37 slows down to a certain extent, the fourth spring 40 is in a relaxed state, the trigger lever 38 contacts the electric trigger, the electromagnet 44 is powered off, the sliding rod 46 is inserted between the rotating disc and the adjusting shaft 36 under the action of the fifth spring 47, and the adjusting impeller 34 will be rotated after passing through the adjusting impeller 34, that is, the rotating disc is driven to rotate by the adjusting shaft 36, the protruding block on the rotating disc reciprocates through the extrusion head 50 and extrudes the extrusion head 50, and the striking head 45 strikes the filter screen through the striking rod 54, so as to ensure the cleanliness of the filter screen and avoid the flow rate slowing down due to the blockage of the filter screen.

[0071] During the striking process of the striking head 45, the pressing plate 52 moves, and the cavity between the pressing plate 52 and the side wall of the adjusting bin 35 repeatedly changes, so that the cleaning liquid in the cleaning liquid bin 43 acts on the filter screen to clean the filter screen.

[0072] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A double-channel high-pressure fracturing manifold, characterized in that, comprising a first main pipeline (1) and a second main pipeline (2), both of which are provided with two groups, and the two groups of the first main pipeline (1) and the second main pipeline (2) are connected through a switch (3), and the switch (3) is used for conducting one group of the first main pipeline (1) and the second main pipeline (2); a rotating shaft (4) is arranged in the switch (3), the rotating shaft (4) is rotatably connected with a rotating block (5), a communication part (6) is arranged in the rotating block (5), the communication part (6) is communicated with one group of the first main pipeline (1) and the second main pipeline (2), and the other group of the first main pipeline (1) and the second main pipeline (2) abuts against the surface of the rotating block (5); the first main pipeline (1) and the second main pipeline (2) are connected with the switch (3) through a connecting assembly, the connecting assembly comprises a first interface (7) connected with the main pipeline and a second interface (8) connected with the communication part (6), the first interface (7) is arranged on a first connecting shell (9), the second interface (8) is arranged on a second connecting shell (15), the second connecting shell (15) is provided with a connecting port (14) at the other end, and the first connecting shell (9) can be connected into the connecting port (14); a limiting shaft (11) is fixedly connected in the first connecting shell (9), a plugging head (12) is slidably connected on the limiting shaft (11), the plugging head (12) can seal the lower end of the first connecting shell (9), a first spring (13) is arranged between the plugging head (12) and the upper end of the first connecting shell (9), and the first spring (13) is sleeved on the limiting shaft (11); a protrusion (10) is arranged on the outer side of the first connecting shell (9); an abutting rod (16) is fixedly connected in the second connecting shell (15), a sealing sleeve (17) is arranged on the outer periphery of the abutting rod (16), the sealing sleeve (17) is slidably connected in the second connecting shell (15), an opening is arranged on the upper end of the sealing sleeve (17), and the upper end of the abutting rod (16) can seal the opening on the upper end of the sealing sleeve (17); a second spring (18) is arranged between the sealing sleeve (17) and the lower end of the second connecting shell (15), and the second spring (18) is sleeved on the abutting rod (16); a clamping buckle (20) is arranged on the outer side of the sealing sleeve (17), the clamping buckle (20) is slidably connected to the inner wall of the second connecting shell (15), the clamping buckle (20) is arranged obliquely, and the lower end of the clamping buckle (20) is connected with a third spring (19).

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