Fracturing diverter manifold skid and wellhead connection manifold device

Abstract

The present application discloses a fracturing diverter manifold skid and a wellhead connection manifold device, relating to the field of oil and gas equipment. A fracturing diverter manifold skid, comprising: a first connector assembly, at least one fracturing valve, and a second connector assembly; the at least one fracturing valve is disposed in a vertical direction; the first connector assembly is connected to the bottom of the at least one fracturing valve; and the second connector assembly is connected to the top of the at least one fracturing valve. An embodiment of the present application further provides a wellhead connection manifold device, comprising: a connection manifold, a wellhead tree, and the fracturing diverter manifold skid; the connection manifold is connected between the fracturing diverter manifold skid and the wellhead tree.

Description

Fracturing diversion manifold skid and wellhead connection manifold device

[0001] Cross-references

[0002] This application claims priority to Chinese Patent Application No. 202520552028.X, filed on March 26, 2025, entitled "Fracturing Diversion Manifold Skid and Wellhead Connection Manifold Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the technical field of oil and gas equipment, specifically relating to a fracturing manifold skid and wellhead connection manifold device. Background Technology

[0004] The fracturing manifold skid has a diversion function and is widely used in fracturing operations. Taking fracturing operations as an example, the manifold skid can realize the rapid switching of wellhead fracturing, transforming the fracturing and pumping bridge plug process from the previous shared type to an independent type, realizing a zipper-like operation of multi-wellhead fracturing.

[0005] In the fracturing manifold skid of related technologies, the fracturing valves are arranged horizontally and need to be connected to the wellhead tree via a single-pipe universal joint consisting of a four-way valve and a straight pipe. However, the horizontal arrangement of the fracturing valves leads to the deposition of fracturing sand in the valves, resulting in severe sand accumulation. Summary of the Invention

[0006] The purpose of this application is to provide a fracturing manifold skid and a wellhead connection manifold device.

[0007] This application provides a fracturing manifold skid, including: a first connector assembly, at least one fracturing valve, and a second connector assembly; the at least one fracturing valve is arranged in a vertical direction; the first connector assembly is connected to the bottom of the at least one fracturing valve; and the second connector assembly is connected to the top of the at least one fracturing valve.

[0008] This application also provides a wellhead connection manifold device, including: a connection manifold, a wellhead tree, and the aforementioned fracturing diversion manifold skid; the connection manifold is connected between the fracturing diversion manifold skid and the wellhead tree. Attached Figure Description

[0009] Figure 1 is a schematic diagram of the structure of a horizontal fracturing manifold skid in the relevant technology;

[0010] Figure 2 is a structural schematic diagram of the wellhead connection manifold device disclosed in the embodiments of this application;

[0011] Figure 3 is a partial schematic diagram of the first connector assembly disclosed in an embodiment of this application;

[0012] Figure 4 is a schematic diagram of the structure of the skid disclosed in an embodiment of this application;

[0013] Figure 5 is a schematic diagram of the structure of multiple fracturing valves disclosed in the embodiments of this application.

[0014] Explanation of reference numerals in the attached drawings: 01-Fracturing manifold skid; 10-First connector assembly; 20-Fracturing valve; 30-Second connector assembly; 31-Quick connector; 32-First four-way assembly; 40-Skirt; 41-Base; 42-Frame; 43-Support; 44-Step ladder; 45-Top frame; 02-Connecting manifold; 021-Fracturing pipe; 022-Clamp; 03-Wellhead tree; 031-Hydraulic connector; 032-Second four-way assembly; 033-Wellhead tree valve. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0017] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0018] Fracturing manifolds serve a diversion function and are widely used in fracturing operations. Taking fracturing operations as an example, fracturing manifolds enable rapid switching between wellhead fracturing operations. In related technologies, fracturing valves in fracturing manifolds are arranged horizontally, as shown in Figure 1. This leads to the easy deposition of fracturing sand in the fracturing fluid within the valves, resulting in severe sand accumulation.

[0019] Referring to Figures 2 to 5, this application discloses a fracturing manifold skid 01, which includes a first connector assembly 10, at least one fracturing valve 20, and a second connector assembly 30.

[0020] At least one fracturing valve 20 is arranged vertically. Optionally, there can be one or more fracturing valves 20. When there are multiple fracturing valves 20, they can be connected in series in the vertical direction. For example, there can be two, three, four, etc., and of course, other numbers are also possible, depending on the actual working conditions.

[0021] When there are multiple fracturing valves 20, adjacent fracturing valves 20 can be connected by flanges, clamps, or other means to ensure the robustness and reliability of the connection between adjacent fracturing valves 20. In addition, a sealing gasket can be provided between adjacent fracturing valves 20 to provide a seal and prevent fracturing fluid leakage.

[0022] In some more specific embodiments, the multiple fracturing valves 20 can all be ordinary fracturing valves, as shown in Figure 5a; the multiple fracturing valves 20 can also be ordinary fracturing valves used in conjunction with wire-supported valve body fracturing valves, as shown in Figure 5b; the multiple fracturing valves 20 can also be integrated fracturing valves, as shown in Figure 5c. During and after fracturing operations, sedimentation is less likely to occur, and the need for grease injection into the fracturing valves 20 can be reduced, thus extending the maintenance cycle of the fracturing valves 20.

[0023] It should be noted that the fracturing manifold skid 01 can be placed on a horizontal plane and run, in which case multiple fracturing valves 20 are connected in series in a vertical direction perpendicular to the horizontal plane.

[0024] The first connector assembly 10 is connected to the bottom of at least one fracturing valve 20. Additionally, the first connector assembly 10 can also be connected to a fracturing fluid inlet line to supply fracturing fluid to the first connector assembly 10 and to the fracturing valve 20. When there are multiple fracturing valves 20, the first connector assembly 10 can be connected to the bottom of the lowest fracturing valve 20 among them.

[0025] Optionally, the first connector assembly 10 and the fracturing valve 20 can be connected by a flange or clamp to ensure the robustness and reliability of the connection. Additionally, a sealing gasket can be provided between the first connector assembly 10 and the fracturing valve 20 to provide a seal and prevent fracturing fluid leakage.

[0026] The second connector assembly 30 is connected to the top of at least one fracturing valve 20. Additionally, the second connector assembly 30 can be connected to an output line (e.g., connection manifold 02 hereinafter referred to as the output line) to supply fracturing fluid to the output line and to supply the fracturing fluid downstream via the output line. When there are multiple fracturing valves 20, the second connector assembly 30 can be connected to the top of the topmost fracturing valve 20 among the multiple fracturing valves 20.

[0027] Optionally, the second connector assembly 30 and the fracturing valve 20 can be connected by a flange or clamp to ensure the robustness and reliability of the connection. Additionally, a sealing gasket can be provided between the second connector assembly 30 and the fracturing valve 20 to provide a seal and prevent fracturing fluid leakage.

[0028] In this embodiment, at least one fracturing valve 20 is arranged vertically, allowing the fracturing fluid to flow vertically and ensuring that the gravity direction of the fracturing sand is parallel to the flow direction of the fracturing fluid. This allows the fracturing sand to flow vertically without sand accumulation. Compared to a horizontal arrangement of fracturing valves 20, this embodiment effectively alleviates the problem of fracturing sand accumulation in the fracturing valves 20, effectively preventing blockage caused by sand accumulation.

[0029] Referring to Figures 2 and 4, in some embodiments, the fracturing manifold skid 01 may also include a skid 40, which is a basic load-bearing member used to mount and support components such as the first connector assembly 10 and at least one fracturing valve 20.

[0030] At least one fracturing valve 20 is disposed within the skid 40, and the first connector assembly 10 is disposed within the skid 40 and located at the bottom of the skid 40. Based on this arrangement, the skid 40 can fix and support the first connector assembly 10, and also protect the first connector assembly 10 and at least one fracturing valve 20 from damage due to impact.

[0031] Optionally, the skid 40 may include multiple crossbeams and multiple longitudinal beams, which are staggered and connected to form the entire skid 40. Of course, the skid 40 may also be a box-type structure, mainly capable of accommodating the first connector assembly 10 and at least one fracturing valve 20, and providing protection; the specific form is not limited.

[0032] Referring to Figure 4, in some embodiments, the skid 40 may include a base 41 and a frame 42, with the frame 42 disposed on the base 41. Optionally, the frame 42 and the base 41 may be fixedly connected, or the frame 42 and the base 41 may be integrally formed. Exemplarily, the frame 42 may be in the form of a polygonal frame, a cylindrical frame, etc., and the base 41 may be a plate-like structure, a block-like structure, etc.

[0033] The first connector assembly 10 is connected to the base 41 so that the base 41 can support and fix the first connector assembly 10, thereby ensuring the installation stability of the first connector assembly 10.

[0034] To ensure the stability of the fracturing valve 20, at least one support member 43 may be provided inside the frame 42. Optionally, the support member 43 may be fixed to the inside of the frame 42, such as by welding, riveting, or by detachable methods such as screwing or snap-fitting; of course, at least one support member 43 may also be an integral structure with the frame 42, as long as the installation stability of the support member 43 can be guaranteed, and the specific form is not limited.

[0035] For example, the support member 43 may include a support rod and a fixing plate, one end of the support rod is located inside the frame 42 and the support rod extends in a horizontal direction, and the fixing plate is located at the other end of the support rod.

[0036] At least one fracturing valve 20 is located within the frame 42 and is connected to at least one support member 43 in a corresponding manner. In this way, at least one fracturing valve 20 can be installed and fixed by at least one support member 43 to ensure the stability of at least one fracturing valve 20 and prevent the fracturing valve 20 from shaking randomly during the operation of the fracturing diversion manifold skid 01.

[0037] In some embodiments, the fixing plate of at least one support member 43 is connected to the corresponding fracturing valve 20.

[0038] In other embodiments, there are multiple support members 43 and multiple fracturing valves 20. Multiple support members 43 can also share a common fixing plate, and multiple fracturing valves 20 are connected to the common fixing plate to achieve the common installation of multiple fracturing valves 20.

[0039] In some embodiments, a step ladder 44 may be provided on the side of the plate frame, which allows workers to conveniently maintain and repair the fracturing valve 20 and the second connector assembly 30.

[0040] In addition, the top of the frame 42 may be provided with a detachable top frame 45, that is, the top frame 45 and the frame 42 can be separated from each other, so as to facilitate the opening of the top of the frame 42 to facilitate the installation of the first connector assembly 10, the fracturing valve 20, and the second connector assembly 30.

[0041] In other embodiments, the top frame 45 and the side frame 42 can also be connected by a pivot, so that the top frame 45 can be rotated to open or close relative to the side frame 42, thereby facilitating the installation of the first connector assembly 10, the fracturing valve 20, and the second connector assembly 30.

[0042] Referring to Figure 2, in some embodiments, the first connector assembly 10 can be a tee assembly, one port of which is connected to the bottom of at least one fracturing valve 20; in addition, the other two ports of the tee assembly can be inlet ports, respectively used to input fracturing fluid to supply fracturing fluid to the fracturing valve 20; of course, the other two ports of the tee assembly can also include an inlet port and an outlet port, which can be set according to actual needs.

[0043] In other embodiments, the first connector assembly 10 may also be a four-way assembly, a five-way assembly, etc., which can be selected according to the actual working conditions.

[0044] Referring to Figures 2 and 3, in some embodiments, the second connector assembly 30 may include a quick connector 31 and a first four-way assembly 32. The quick connector 31 is connected between the first four-way assembly 32 and the top of at least one fracturing valve 20, and the first four-way assembly 32 is used to connect to the connecting manifold 02. Based on this configuration, the quick connector 31 enables connection between the fracturing valve 20 and the first four-way assembly 32, facilitating assembly and disassembly and improving maintenance efficiency. Furthermore, the first four-way assembly 32 allows fracturing fluid from the fracturing valve 20 to be transported to the connecting manifold 02, enabling downstream transport of the fracturing valve 20 via the connecting manifold 02.

[0045] It should be noted that the specific structure and connection principle of the quick connector 31 can be referred to the existing technology, and will not be elaborated here.

[0046] Based on the aforementioned fracturing manifold skid 01, this application also discloses a wellhead connection manifold 02 device, as shown in FIG2. The disclosed wellhead connection manifold 02 device includes a connection manifold 02, a wellhead tree 03, and the aforementioned fracturing manifold skid 01. The connection manifold 02 is connected between the fracturing manifold skid 01 and the wellhead tree 03, so as to transport the fracturing fluid delivered by the fracturing manifold skid 01 to the wellhead tree 03 through the connection manifold 02, and the wellhead tree 03 delivers the fracturing fluid to the ground to facilitate fracturing operations.

[0047] In some embodiments, the connecting manifold 02 may include a fracturing pipe 021 and a clamp 022, wherein one end of the fracturing pipe 021 is connected to the second connector assembly 30 via the clamp 022, and the other end of the fracturing pipe 021 is connected to the wellhead tree 03. Based on this configuration, the clamp 022 can ensure installation stability between the fracturing pipe 021 and the second connector assembly 30, preventing fracturing fluid leakage; additionally, the fracturing pipe 021 can deliver fracturing fluid to the wellhead tree 03.

[0048] Specifically, clamp 022 can connect fracturing pipe 021 to first four-way assembly 32.

[0049] Referring again to Figure 2, in some embodiments, the wellhead tree 03 may include a hydraulic connector 031, a second four-way assembly 032, and a plurality of wellhead tree valves 033, wherein the plurality of wellhead tree valves 033 are connected in series in a vertical direction, the hydraulic connector 031 is connected to the top wellhead tree valve 033 among the plurality of wellhead valves, the second four-way assembly 032 is connected between the plurality of wellhead tree valves 033, and the connecting manifold 02 is connected to the second four-way valve.

[0050] Based on the above setup, the fracturing fluid transported via the connecting manifold 02 flows into the second four-way valve. Under the action of the hydraulic connector 031, the fracturing fluid is transported from the second four-way valve to the wellhead tree valve 033, and then transported downstream by the wellhead tree valve 033, finally reaching the underground to achieve the fracturing operation.

[0051] It should be noted that the specific structure and working principle of the hydraulic connector 031 can be referred to the existing technology, and will not be elaborated here.

[0052] Optionally, the connecting manifold 02 may include flanged straight pipes connected in multiple directions to meet different layout requirements of the fracturing diversion manifold skid 01.

[0053] Considering that flanged straight pipe connections are prone to large bending angles, in this embodiment, the connecting manifold 02 may also include a flexible pipe. The deformation of the flexible pipe can meet different layout requirements of the diversion manifold skid, and there is no problem of excessive bending angles. Furthermore, the less bending of the flexible pipe helps reduce the scouring effect of fracturing fluid and vibration.

[0054] Of course, during high-power fracturing operations, flexible pipes may cause vibrations. In such cases, flanged straight pipes can be considered for conveying fracturing fluid.

[0055] In summary, in this embodiment of the application, the fracturing diversion manifold skid 01 and the wellhead tree 03 can be connected by a flange four-way (i.e., the first four-way assembly 32 mentioned above) and a flange straight pipe (i.e., the connecting manifold 02 mentioned above), without the need for a single pipe universal joint, which helps to reduce the use of manifolds and lower equipment costs.

[0056] The fracturing manifold skid 01 and the flexible pipe can be directly connected using the hydraulic connector 031, which can reduce on-site manifold installation and improve installation convenience; in addition, the flexible pipe has fewer bends, which helps to reduce the scouring of the flexible pipe by the fracturing fluid, thereby reducing vibration.

[0057] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A fracturing diversion manifold skid, comprising: A first connector assembly (10), at least one fracturing valve (20), and a second connector assembly (30); The at least one fracturing valve (20) is arranged in a vertical direction; The first connector assembly (10) is connected to the bottom of the at least one fracturing valve (20); The second connector assembly (30) is connected to the top of the at least one fracturing valve (20).

2. The fracturing diversion manifold skid according to claim 1, wherein, The fracturing manifold skid (01) also includes a skid frame (40); The at least one fracturing valve (20) is disposed inside the skid (40); The first connector assembly (10) is disposed within the skid (40) and located at the bottom of the skid (40).

3. The fracturing diversion manifold skid according to claim 2, wherein, The skid (40) includes a base (41) and a frame (42) disposed on the base (41), and at least one support member (43) is provided in the frame (42); The first connector assembly (10) is connected to the base (41); The at least one fracturing valve (20) is located inside the frame (42) and is connected to the at least one support member (43) in a corresponding manner.

4. The fracturing diversion manifold skid according to claim 3, wherein, A step ladder (44) is provided on the side of the frame (42); And / or, the top of the frame (42) is provided with a detachably connected top frame (45).

5. The fracturing diversion manifold skid according to claim 1, wherein, The first connector assembly (10) is a three-way assembly, one of the ports of which is connected to the bottom of the at least one fracturing valve (20).

6. The fracturing diversion manifold skid according to claim 1, wherein, The second connector assembly (30) includes a quick connector (31) and a first four-way assembly (32); The quick connector (31) is connected between the first four-way assembly (32) and the top of the at least one fracturing valve (20); The first four-way assembly (32) is used to connect to the connecting manifold (02).

7. A wellhead connection manifold device, comprising: Connecting manifold (02), wellhead tree (03), and fracturing diversion manifold skid (01) as described in any one of claims 1 to 6; The connecting manifold (02) is connected between the fracturing diversion manifold skid (01) and the wellhead tree (03).

8. The wellhead connection manifold device according to claim 7, wherein, The connecting manifold (02) includes a fracturing pipe (021) and a clamp (022); One end of the fracturing pipe (021) is connected to the second connector assembly (30) via the clamp (022); The other end of the fracturing pipe (021) is connected to the wellhead tree (03).

9. The wellhead connection manifold device according to claim 7, wherein, The wellhead tree (03) includes a hydraulic connector (031), a second four-way assembly (032), and multiple wellhead tree valves (033); Multiple wellhead tree valves (033) are connected in series in the vertical direction; The hydraulic connector (031) is connected to the top wellhead tree valve (033) among the plurality of wellhead tree valves (033); The second four-way assembly (032) is connected between the plurality of wellhead tree valves (033); The connecting manifold (02) is connected to the second four-way assembly (032).

10. The wellhead connection manifold device according to claim 7, wherein, The connecting manifold (02) includes flanged straight pipes or flexible pipes.

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