Shunt manifold equipment for oil field fracturing

Abstract

The utility model provides shunting manifold equipment for oil field fracturing, which belongs to the technical field of oil field fracturing equipment and comprises a central connecting piece and a control valve, side connecting pipes are fixedly communicated with two sides of the central connecting piece and two sides of the control valve, and locking pieces are arranged on the outer sides of the side connecting pipes. A second connecting side plate is fixedly connected to the outer side of each pivot connecting piece, a communicating pipe is arranged between every two adjacent pivot connecting pieces, a screw penetrates through the side face of each communicating pipe, and each screw is in threaded connection with the interior of the corresponding second connecting side plate. The one-way valve is arranged at the input end of the pipeline, the two control valves are arranged on the two sides of the pivot connecting piece, when liquid is conveyed into a well, the one-way valve and the control valves can prevent reverse flow to a certain extent, when redundant liquid media need to be recycled, the control valve and the one-way valve at the front end can be closed, and therefore the purpose of recycling the redundant liquid media is achieved. And the redundant liquid medium is discharged from the side pipe.

Description

Technical Field

[0001] This utility model belongs to the technical field of oilfield fracturing equipment, and in particular relates to diversion manifold equipment for oilfield fracturing. Background Technology

[0002] A manifold for oilfield fracturing is a device used for fluid transport and distribution, typically applied in industries such as petroleum, natural gas, and chemicals. Its main function is to collect fluid from multiple input pipes into one output pipe, or to divert fluid from one input pipe to multiple output pipes.

[0003] A current publication, CN220248032U, discloses a diversion manifold device for oilfield fracturing in controlled pressure drilling. The device includes a delivery pipe, one end of which is connected to the output end of an external mud pump, and the other end of which is connected to a high-pressure hose of an external drill pipe; a control valve is mounted on the delivery pipe; and an inlet pipe, one end of which is connected to the delivery pipe, and the other end of which is connected to an external controlled pressure drilling surface manifold. A first control valve is mounted on the inlet pipe. The port of the inlet pipe is located between the control valve and the external mud pump. When the control valve is closed and the first control valve is open, the liquid medium delivered by the external mud pump can enter the external controlled pressure drilling surface manifold through the inlet pipe to ensure stable surface back pressure.

[0004] Existing manifold equipment used for oilfield fracturing still has the following shortcomings:

[0005] 1. During oilfield fracturing, liquid medium needs to be introduced into the manifold equipment used for oilfield fracturing. Because many parts of the pipeline are connected, backflow is likely to occur during high-pressure input, which will cause impact on the pipeline. After fracturing is completed, excess liquid medium also needs to be recovered.

[0006] 2. In the process of using the manifold equipment for oilfield fracturing, multiple pipes are connected. During oilfield fracturing, the high-pressure liquid medium will scour the inside, which can easily lead to loose connections between the pipes. Utility Model Content

[0007] The purpose of this invention is to solve the problems in the existing technology where multiple parts of the pipeline are connected, and backflow is likely to occur during high-pressure input, which will lead to the impact on the pipeline. After fracturing, it is also necessary to recover the excess liquid medium. In oilfield fracturing, the high-pressure liquid medium will flush inside, which can also cause the pipeline connection to be loose. Therefore, the proposed invention is a diversion manifold device for oilfield fracturing.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A manifold for oilfield fracturing includes: a central connector and a control valve. Side pipes are fixedly connected to both sides of the central connector and the control valve. A locking device is provided on the outside of the side pipe. A second connecting side plate is fixedly connected to the outside of the central connector. A connecting pipe is provided between two adjacent central connectors. A screw passes through the side of the connecting pipe and is threaded into the second connecting side plate. A side pipe is fixedly connected to the side of the central connector away from the connecting pipe through the second connecting side plate and the screw.

[0010] Preferably, the locking member includes a sleeve, the central connector and the side pipe of the control valve are close to each other, the end of the side pipe is provided with a threaded groove, and the sleeve is threadedly connected to the outside of the side pipe through the threaded groove.

[0011] Preferably, a first connecting side plate is fixedly connected to the side of the side pipe, the first connecting side plate is tightly attached to the side of the sleeve, and the screw is threadedly connected to the first connecting side plate and the sleeve.

[0012] Preferably, the control valve has a No. 3 connecting side plate fixedly connected to the end of the side pipe away from the central connector, and the side pipe is fixedly connected to a one-way valve through the No. 3 connecting side plate and screws;

[0013] Preferably, a fracturing head assembly is provided at the end of the control valve away from the one-way valve. The output end of the fracturing head assembly is fixedly connected to multiple fluid inlets. The end of the side pipe is fixedly connected to a No. 4 connecting side plate. The side pipe is fixedly connected to the input end of the fracturing head assembly through the No. 4 connecting side plate and screws.

[0014] Preferably, a support structure is provided below the central connector, the support structure includes a base plate, a first support column is fixedly connected to the lower surface of the central connector, a second support column is fixedly connected to the lower surface of the control valve, a third support column is fixedly connected to the lower surface of the one-way valve, and the first, second, and third support columns are all fixedly connected to the upper surface of the base plate.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This utility model sets a one-way valve at the input end of the pipeline and sets two control valves on both sides of the central connector. When liquid is pumped into the well, the one-way valve and control valve can prevent backflow to a certain extent. When it is necessary to recover excess liquid medium, the control valve and one-way valve at the front end can be closed to discharge excess liquid medium from the side pipe.

[0017] 2. This utility model provides side pipes on both sides of the central connector and the control valve, and provides threaded grooves on the outside of the side pipes. The sleeve is first connected by the threaded grooves to achieve the first layer of sealing. A first connecting side plate is fixed on the outside of the side pipe, and the first connecting side plate is closely attached to the side of the sleeve and fixed by screws to achieve the second layer of protection. Attached Figure Description

[0018] Figure 1 This is a side view of the input end of the manifold device for oilfield fracturing proposed in this utility model.

[0019] Figure 2 This is a side view of the output end of the manifold device for oilfield fracturing proposed in this utility model.

[0020] Figure 3 for Figure 2 Enlarged view of part A;

[0021] Figure 4 This is a schematic diagram of the analytical structure of the diversion manifold device for oilfield fracturing proposed in this utility model.

[0022] Figure 5 for Figure 4 Enlarged view of section B.

[0023] In the diagram: 1. Central connector, 2. Side pipe, 3. Sleeve, 4. No. 1 connecting side plate, 5. No. 2 connecting side plate, 6. Side pipe, 7. Control valve, 8. No. 3 connecting side plate, 9. Check valve, 10. Fracturing head assembly, 11. Fluid passage component, 12. No. 1 support column, 13. No. 2 support column, 14. No. 3 support column, 15. Connecting pipe, 16. Base plate, 17. Threaded groove, 18. No. 4 connecting side plate. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0025] Reference Figures 1-5 A manifold for oilfield fracturing includes: a central connector 1 and a control valve 7. Both sides of the central connector 1 and the control valve 7 are fixedly connected to side pipes 2. A locking device is provided on the outside of the side pipes 2. A second connecting side plate 5 is fixedly connected to the outside of the central connector 1. A connecting pipe 15 is provided between two adjacent central connectors 1. A screw passes through the side of the connecting pipe 15. The screw is threaded into the second connecting side plate 5. A side pipe 6 is fixedly connected to the side of the central connector 1 away from the connecting pipe 15 through the second connecting side plate 5 and the screw.

[0026] The locking assembly includes a sleeve 3, a central connector 1, and a side pipe 2 of a control valve 7 that are close to each other. The end of the side pipe 2 is provided with a threaded groove 17. The sleeve 3 is threadedly connected to the outside of the side pipe 2 through the threaded groove. A first connecting side plate 4 is fixedly connected to the side of the side pipe 2. The first connecting side plate 4 is tightly attached to the side of the sleeve 3. A screw is threadedly connected to the first connecting side plate 4 and the sleeve 3. By providing side pipes 2 on both sides of the central connector 1 and the control valve 7, and providing threaded grooves 17 on the outside of the side pipes 2, the sleeve 3 is first threadedly connected through the threaded grooves 17 to achieve the first layer of sealing. The first connecting side plate 4 is fixed to the outside of the side pipe 2. The first connecting side plate 4 is tightly attached to the side of the sleeve 3 and fixed by screws to achieve the second layer of protection.

[0027] The control valve 7 is fixedly connected to the end of the side pipe 2 away from the central connector 1 with a No. 3 connecting side plate 8. The side pipe 2 is connected to a one-way valve 9 through the No. 3 connecting side plate 8 and screws. By setting the one-way valve 9 at the inlet end of the pipeline and setting two control valves 7 on both sides of the central connector 1, when liquid is pumped into the well, the one-way valve 9 and the control valve 7 can prevent backflow to a certain extent. When it is necessary to recover excess liquid medium, the control valve 7 and the one-way valve 9 at the front end can be closed to discharge the excess liquid medium from the side pipe 6.

[0028] A fracturing head assembly 10 is provided at the end of the control valve 7, which is far away from the one-way valve 9. The output end of the fracturing head assembly 10 is fixedly connected to multiple fluid passage components 11. The end of the side pipe 2 is fixedly connected to the fourth connecting side plate 18. The side pipe 2 is fixedly connected to the input end of the fracturing head assembly 10 through the fourth connecting side plate 18 and screws.

[0029] A support structure is provided below the central connector 1. The support structure includes a base plate 16. A first support column 12 is fixedly connected to the lower surface of the central connector 1. A second support column 13 is fixedly connected to the lower surface of the control valve 7. A third support column 14 is fixedly connected to the lower surface of the one-way valve 9. The first support column 12, the second support column 13 and the third support column 14 are all fixedly connected to the upper surface of the base plate 16.

[0030] The functional principle of this utility model can be explained through the following operation methods:

[0031] By setting a one-way valve 9 at the inlet of the pipeline and setting two control valves 7 on both sides of the central connector 1, when liquid is pumped into the well, the one-way valve 9 and the control valve 7 can prevent backflow to a certain extent. When it is necessary to recover excess liquid medium, the control valve 7 and the one-way valve 9 at the front end can be closed to discharge the excess liquid medium from the side pipe 6.

[0032] By providing side pipes 2 on both sides of the central connector 1 and the control valve 7, and providing threaded grooves 17 on the outside of the side pipes 2, the sleeve 3 is first connected by threads through the threaded grooves 17 to achieve the first layer of sealing. Then, a first connecting side plate 4 is fixed on the outside of the side pipe 2, and the first connecting side plate 4 is tightly attached to the side of the sleeve 3 and fixed by screws to achieve the second layer of protection.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A manifold system for oilfield fracturing, characterized in that, The device includes a central connector (1) and a control valve (7). Both sides of the central connector (1) and the control valve (7) are fixedly connected to side pipes (2). A locking device is provided on the outside of the side pipes (2). A second connecting side plate (5) is fixedly connected to the outside of the central connector (1). A connecting pipe (15) is provided between two adjacent central connectors (1). A screw passes through the side of the connecting pipe (15). The screw is threaded into the second connecting side plate (5). The side of the central connector (1) away from the connecting pipe (15) is fixedly connected to a side pipe (6) through the second connecting side plate (5) and the screw.

2. The manifold equipment for oilfield fracturing according to claim 1, characterized in that, in: The locking component includes a sleeve (3), the central connector (1) and the side pipe (2) of the control valve (7) are close to each other, the end of the side pipe (2) is provided with a threaded groove (17), and the sleeve (3) is threadedly connected to the outside of the side pipe (2) through the threaded groove.

3. The manifold equipment for oilfield fracturing according to claim 2, characterized in that, in: A first connecting side plate (4) is fixedly connected to the side of the side pipe (2). The first connecting side plate (4) is closely attached to the side of the sleeve (3). The screw is threadedly connected to the first connecting side plate (4) and the sleeve (3).

4. The manifold equipment for oilfield fracturing according to claim 1, characterized in that, in: The control valve (7) is fixedly connected to a third connecting side plate (8) at the end of the side pipe (2) away from the central connecting part (1). The side pipe (2) is connected to a one-way valve (9) by the third connecting side plate (8) and screws.

5. The manifold equipment for oilfield fracturing according to claim 4, characterized in that, in: A fracturing head assembly (10) is provided at the end of the control valve (7) away from the one-way valve (9). The output end of the fracturing head assembly (10) is fixedly connected to a plurality of fluid inlet components (11). The end of the side pipe (2) is fixedly connected to a fourth connecting side plate (18). The side pipe (2) is fixedly connected to the input end of the fracturing head assembly (10) through the fourth connecting side plate (18) and screws.

6. The manifold equipment for oilfield fracturing according to claim 4, characterized in that, in: A support structure is provided below the central connector (1). The support structure includes a base plate (16). A first support column (12) is fixedly connected to the lower surface of the central connector (1). A second support column (13) is fixedly connected to the lower surface of the control valve (7). A third support column (14) is fixedly connected to the lower surface of the one-way valve (9). The first support column (12), the second support column (13), and the third support column (14) are all fixedly connected to the upper surface of the base plate (16).

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