A straight-through high-pressure manifold connection device

Abstract

The utility model relates to fracturing manifold technical field especially discloses a straight -through formula high pressure manifold connecting device, is arranged between wellhead fracturing tree and fracturing manifold, and the inlet end of wellhead fracturing tree is provided with first filigree tee, and the outlet end of fracturing manifold is provided with filigree cross, and the first filigree tee and filigree cross are provided with straight -through manifold assembly between, and straight -through manifold assembly is connected with support assembly on it. The utility model discloses through the second filigree tee, first double flange pipe and second double flange pipe of setting, has simplified the connecting structure between fracturing manifold and wellhead fracturing tree, improves the efficiency of installation and the convenience of installation, simple structure, reduces use cost, improves the stability of straight -through manifold assembly through the support assembly of setting, avoids the situation of occurrence of lateral tilting and settlement in fracturing process, and the overall stability and safety are high, improve fracturing efficiency and the smoothness of fracturing.

Description

Technical Field

[0001] This utility model relates to the field of fracturing manifold technology, and in particular to a straight-through high-pressure manifold connection device. Background Technology

[0002] As oil and gas wells continue to produce, their production capacity and permeability will decrease. In order to enhance oil drainage capacity and increase the production of oil and gas wells, it is necessary to adopt fracturing operation technology. This involves injecting fluid into the well at high speed and using the high pressure generated at the bottom of the well to cause the oil layer rock to fracture and create cracks.

[0003] Currently, traditional fracturing operations often use multiple straight pipes, unions, elbows, and multiple tees / crosses for flanged pipeline connections between the fracturing wellhead and the fracturing manifold. For example, application number 202011164787.7 discloses a single-pipe universal ultra-high pressure fracturing pipeline, which includes six sets of rotating single-pipe units, one set of fixed single pipes, and five right-angle valve blocks. This technical solution has a complex overall structure, many parts, and low on-site installation efficiency. The use of right-angle valve block structure leads to pressure loss and pressure shock, which can easily accelerate the damage of the manifold and increase the operating cost. Moreover, the pressure shock during operation can easily cause deformation or settlement, affecting the efficiency and stability of fracturing and posing significant safety hazards.

[0004] Therefore, it is necessary to propose an improved straight-through high-pressure manifold connection device to overcome the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the prior art and provide a straight-through high-pressure manifold connection device.

[0006] The technical solution of this utility model is:

[0007] A straight-through high-pressure manifold connection device is installed between the wellhead fracturing tree and the fracturing manifold. It includes a straight-through manifold assembly and a support assembly. The inlet end of the wellhead fracturing tree is provided with a first wire-carrying tee, and the outlet end of the fracturing manifold is provided with a wire-carrying duplicate. The straight-through manifold assembly is installed between the first wire-carrying tee and the wire-carrying duplicate, and the support assembly is installed on the straight-through manifold assembly.

[0008] Preferably, the straight manifold assembly includes a second threaded tee, a first double flange pipe and a second double flange pipe, one end of the first double flange pipe is connected to the first threaded tee, one end of the second double flange pipe is connected to the threaded tee, and the other ends of the first double flange pipe and the second double flange pipe are respectively connected to the second threaded tee.

[0009] Preferably, the support assembly includes a hydraulic support, a support rod, and a positioning mechanism. One end of the support rod is connected to the extended end of the hydraulic support, and the other end of the support rod is connected to the second threaded tee. There are two positioning mechanisms, which are symmetrically arranged on both sides of the second threaded tee.

[0010] Preferably, the positioning mechanism includes a positioning base, a positioning screw, a handle, and an L-shaped support rod. The handle is rotatably mounted on the top of the positioning base. The positioning screw is inserted into the positioning base and threadedly connected to the handle. One end of the L-shaped support rod is connected to the positioning screw, and the other end of the L-shaped support rod is connected to the side wall of the second threaded tee.

[0011] Preferably, the first threaded tee has a first inclined surface, the threaded duo has a second inclined surface, and the second double flange pipe is connected between the first inclined surface and the second inclined surface.

[0012] Preferably, the fracturing manifold is mounted on a skid-mounted base, and a support seat is provided at the bottom of the threaded tee, with the support seat mounted on the skid-mounted base.

[0013] Preferably, a locking nut is threaded onto the positioning screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention simplifies the connection structure between the fracturing manifold and the wellhead fracturing tree by incorporating a second threaded tee, a first double flange pipe, and a second double flange pipe. This improves installation efficiency and convenience. The straight-through design simplifies the structure, reduces pressure loss and pressure shock, and lowers operating costs. The supporting components enhance the stability of the straight-through manifold assembly, preventing rollover and subsidence during fracturing. Overall, it offers high stability and safety, improving fracturing efficiency and smoothness. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] The components include: 1. Wellhead fracturing tree; 2. Fracturing manifold; 3. Skid-mounted base; 4. First threaded tee; 5. Threaded two-way connector; 6. Second threaded tee; 7. First double flange pipe; 8. Second double flange pipe; 9. Hydraulic support; 10. Support rod; 11. Positioning base; 12. Positioning screw; 13. Handle; 14. L-shaped support rod; 15. First inclined surface; 16. Second inclined surface; 17. Support seat; 18. Locking nut. Detailed Implementation

[0018] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0019] like Figure 1 As shown, a straight-through high-pressure manifold connection device includes a straight-through manifold assembly connecting the wellhead fracturing tree 1 and the fracturing manifold 2. Specifically, a first wire guide tee 4 is installed at the inlet end of the wellhead fracturing tree 1, and a wire guide dummy 5 is installed at the outlet end of the fracturing manifold 2. The straight-through manifold assembly is installed between the first wire guide tee 4 and the wire guide dummy 5 to achieve communication between the wellhead fracturing tree 1 and the fracturing manifold 2, thereby enabling fracturing operations. A support assembly is connected to the straight-through manifold assembly to support and position it, preventing settlement during fracturing operations and ensuring the safety and stability of the fracturing operation.

[0020] like Figure 1 As shown, the straight manifold assembly includes a second threaded tee 6, a first double flange pipe 7, and a second double flange pipe 8. During installation, one end of the first double flange pipe 7 is connected to the first threaded tee 4, and one end of the second double flange pipe 8 is connected to the threaded tee 5. The other ends of the first double flange pipe 7 and the second double flange pipe 8 are respectively connected to the second threaded tee 6. After installation, the first double flange pipe 7 is horizontal. The first threaded tee 4 is machined with a first inclined surface 15, and the threaded tee 5 is machined with a second inclined surface 16. The inclination angles of the first inclined surface 15 and the second inclined surface 16 are similar, making them parallel to each other. The second double flange pipe 8 is connected between the first inclined surface 15 and the second inclined surface 16. After installation, the second double flange pipe 8 is inclined, simplifying the installation structure, eliminating right angles at corners, and allowing fracturing fluid to smoothly transition from the fracturing manifold 2 to the wellhead fracturing tree 1, avoiding pressure shock and loss.

[0021] like Figure 1 As shown, the support assembly includes a hydraulic support 9, a support rod 10, and a positioning mechanism. The hydraulic support 9 is located below the second threaded tee 6. The fixed end of the hydraulic support 9 is supported on the ground. The support rod 10 is connected to the output end of the hydraulic support 9, that is, one end of the support rod 10 is connected to the extended end of the hydraulic support 9, and the other end of the support rod 10 is connected to the second threaded tee 6. The connection between the support rod 10 and the second threaded tee 6 can be either a contact support or a bolt connection, which is convenient and quick to install and remove. There are two positioning mechanisms, which are symmetrically installed on both sides of the second threaded tee 6.

[0022] The positioning mechanism includes a positioning base 11, a positioning screw 12, a handle 13, and an L-shaped support rod 14. The positioning base 11 is placed on the ground, with two positioning bases 11 located on either side of the hydraulic support 9. The handle 13 is mounted on the top of the positioning base 11, allowing relative rotation between the handle 13 and the positioning base 11. The positioning screw 12 is inserted into the positioning base 11 and threadedly connected to the handle 13. A locking nut 18 is threaded onto the positioning screw 12, positioned above the handle 13. The mechanism operates by rotating the handle 13 and adjusting the position between the positioning screw 12 and the handle 14. The threaded connection converts the rotation of the handle 13 into the raising and lowering of the positioning screw 12. After the positioning screw 12 is adjusted to the correct position, the locking nut 18 is rotated in the opposite direction to fix the position of the positioning screw 12 relative to the positioning base 11, ensuring stable and reliable support. One end of the L-shaped support rod 14 is connected to the positioning screw 12, and the other end of the L-shaped support rod 14 is connected to the side wall of the second threaded tee 6. The support of the side wall of the second threaded tee 6 by the L-shaped support rod 14 prevents it from overturning during the fracturing process and maintains the stability and safety of the second threaded tee 6, the first double flange pipe 7, and the second double flange pipe 8.

[0023] like Figure 1 As shown, the fracturing manifold 2, together with the wire guide 2 5, is installed on the skid-mounted base 3. It has a high degree of integration, a compact structure, and is convenient for transportation and on-site installation. A support seat 17 is connected to the bottom of the wire guide 2 5. The wire guide 2 5 is connected to the skid-mounted base 3 through the support seat 17, which helps to increase the stability of the connection between the wire guide 2 5 and the fracturing manifold 2.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. A straight-through high-pressure manifold connection device, disposed between the wellhead fracturing tree (1) and the fracturing manifold (2), characterized in that, The wellhead fracturing tree (1) is provided with a first wire guide tee (4) at its inlet end and a wire guide dummy (5) at its outlet end. The straight manifold assembly is located between the first wire guide tee (4) and the wire guide dummy (5). The support assembly is located on the straight manifold assembly.

2. The straight-through high-pressure manifold connection device according to claim 1, characterized in that: The straight manifold assembly includes a second threaded tee (6), a first double flange pipe (7), and a second double flange pipe (8). One end of the first double flange pipe (7) is connected to the first threaded tee (4), one end of the second double flange pipe (8) is connected to the threaded tee (5), and the other end of the first double flange pipe (7) and the other end of the second double flange pipe (8) are respectively connected to the second threaded tee (6).

3. The straight-through high-pressure manifold connection device according to claim 2, characterized in that: The support assembly includes a hydraulic support (9), a support rod (10), and a positioning mechanism. One end of the support rod (10) is connected to the extended end of the hydraulic support (9), and the other end of the support rod (10) is connected to the second tee (6). There are two positioning mechanisms, which are symmetrically arranged on both sides of the second tee (6).

4. The straight-through high-pressure manifold connection device according to claim 3, characterized in that: The positioning mechanism includes a positioning base (11), a positioning screw (12), a handle (13), and an L-shaped support rod (14). The handle (13) is rotatably mounted on the top of the positioning base (11). The positioning screw (12) is inserted into the positioning base (11) and is threadedly connected to the handle (13). One end of the L-shaped support rod (14) is connected to the positioning screw (12), and the other end of the L-shaped support rod (14) is connected to the side wall of the second threaded tee (6).

5. The straight-through high-pressure manifold connection device according to claim 2, characterized in that: The first wire-carrying tee (4) has a first inclined surface (15), the wire-carrying tee (5) has a second inclined surface (16), and the second double flange pipe (8) is connected between the first inclined surface (15) and the second inclined surface (16).

6. The straight-through high-pressure manifold connection device according to claim 1, characterized in that: The fracturing manifold (2) is mounted on the skid-mounted base (3), and the bottom of the wire guide tube (5) is provided with a support seat (17), which is mounted on the skid-mounted base (3).

7. The straight-through high-pressure manifold connection device according to claim 4, characterized in that: A locking nut (18) is threaded onto the positioning screw (12).

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