Multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction

Abstract

The utility model relates to a kind of multi-branch liquid control valve operating cabinet for shale gas fracturing construction, and the operating cabinet is equipped with external oil supply, gate valve control pressure gauge, overflow valve and gate valve switch, the external oil supply provides hydraulic drive for each distribution branch of operating cabinet, the gate valve control pressure gauge is used to monitor the pressure of each distribution branch, the gate valve switch is used to drive gate valve by control pressure, corresponding hand reversing valve is operated, working hydraulic oil is transported to corresponding gate valve drive cylinder, to control gate valve to close or open, the overflow valve is used to overload protection to control cabinet hydraulic system. Through the utility model, it can realize that the shale gas platform well fracturing construction site multi-liquid control gate valve reaches the operation purpose through single control cabinet, effectively improves construction efficiency, reduces personnel operation emphasis, reduces operation cost.

Description

Technical Field

[0001] This utility model relates to the field of shale gas fracturing technology, and more specifically, to a multi-branch hydraulic control valve operating cabinet for shale gas fracturing operations. Background Technology

[0002] With the ongoing exploration and development of shale gas, platform well fracturing and remote gate valve operation have become mainstream fracturing techniques. Safe and stable construction, along with rapid emergency response, are urgently needed on-site to improve quality and efficiency. Currently, most wells being constructed are platform wells. Each well requires hydraulic control devices to control the opening and closing of its corresponding hydraulic gate valves, including the pressure relief outlet plug valve, wellhead valve 4, emergency slab valve on the main bore, and slab valve on the manifold. Previously, hydraulic control boxes had too few interfaces, requiring multiple boxes for platform well construction. This caused significant inconvenience in the relocation, installation, commissioning, and operation of these boxes during platform well fracturing. Therefore, to meet the demands of platform well fracturing for hydraulic control devices, a more convenient and efficient method is needed to control the opening and closing of hydraulic gate valves. Currently, multiple wells are constructed using two or more hydraulic control boxes, which is inefficient and increases the workload of personnel. Summary of the Invention

[0003] The technical problem to be solved by this utility model is a multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction, which is used to operate and control the hydraulic gate valve during shale gas fracturing construction, thereby improving construction efficiency and reducing the labor intensity of operators.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction is constructed. The operating cabinet is equipped with an external oil supply port, a gate valve control pressure gauge, an overflow valve, and a gate valve switch. The external oil supply port provides hydraulic drive for each distribution branch of the operating cabinet. The gate valve control pressure gauge is used to monitor the pressure of each distribution branch. The gate valve switch is used to drive the gate valve by controlling the pressure and operating the corresponding manual directional valve to deliver working hydraulic oil to the corresponding gate valve drive cylinder, thereby controlling the gate valve to close or open. The overflow valve is used to provide overload protection for the hydraulic system of the control cabinet.

[0005] According to the above scheme, the bottom of the control cabinet is provided with a forklift hole.

[0006] According to the above scheme, the bottom of the control cabinet is equipped with lifting lugs. According to the above scheme, the distribution branch and the main inlet and unloading oil pipeline are connected in parallel, and the gate valve is controlled by a three-position four-way manual directional valve.

[0007] According to the above scheme, each distribution branch of the control cabinet is equipped with a corresponding gate valve switch.

[0008] The multi-branch hydraulic control valve operating cabinet for shale gas fracturing operations according to this utility model has the following beneficial effects: 1. This utility model of a multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction enables the operation and control of the hydraulic control gate valve of the platform well, eliminating the need for multiple hydraulic control boxes due to the large number of wells being constructed on the platform, effectively improving construction efficiency and reducing the labor intensity of operators. The device is easy to install, debug, and operate, and can be directly applied to fracturing construction sites.

[0009] 2. This utility model is made into a multi-branch mode, which can reuse the previous power source hydraulic control device, thus achieving the purpose of reducing costs and increasing efficiency.

[0010] 3. This utility model is made into a cabinet-type external interface, which can protect the entire device and facilitate relocation. On the other hand, the external interface facilitates the connection of inlet and outlet oil pipelines, making the layout of control pipelines more convenient. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a front view of the control cabinet for the multi-branch hydraulic control valve used in shale gas fracturing construction according to this utility model. Figure 2 This is a side view of the control cabinet for a multi-branch hydraulic control valve used in shale gas fracturing operations according to this utility model. Figure 3 This is a schematic diagram of the hydraulic principle of the multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction of this utility model; Figure 1 In the middle: 1-external oil supply port, 2-gate valve control pressure gauge, 3-relief valve, 4-gate valve switch, 5-distribution branch, 6-forklift hole, 7-lifting lug. Detailed Implementation

[0012] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0013] like Figure 1 , Figure 2 As shown, the multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction of this utility model includes an external oil supply port 1, a gate valve control pressure gauge 2, an overflow valve 3, and a gate valve switch 4.

[0014] External oil supply port 1 is connected to an external power source via two hydraulic lines to achieve oil inlet and outlet. The gate valve control pressure gauge 2 is used to monitor the external power source to provide hydraulic drive for the control cabinet. The relief valve 3 provides overload protection for the hydraulic system. The gate valve switch 4 controls the closing or opening of each gate valve. The distribution branch 5 is connected in parallel with the main inlet and outlet oil main lines of the main line. Each distribution branch corresponds to a gate valve switch 4. The forklift hole 6 and the lifting lug 7 are used for a transportation method during relocation. During operation, hydraulic pressure is supplied by an external power source. Observe whether the driving pressure of the gate valve control pressure gauge 2 reaches the working pressure for opening or closing the gate valve. If the current system hydraulic control pressure is less than the specified pressure, the hydraulic gate valve cannot be operated. The branch line 5 is assigned to control each gate valve. Each branch line corresponds to a gate valve switch 4. Each gate valve switch 4 has two interfaces at the back end, which are connected to the controlled gate valve through hydraulic lines to open and close the gate valve. If the back end interface of the gate valve switch 4 is connected incorrectly to the gate valve interface, the gate valve cannot be controlled. At this time, it is necessary to adjust the sequence of the back end interfaces of the gate valve switch 4. When the pressure of the entire hydraulic control system exceeds the set pressure, the relief valve 3 will open to protect the entire system. When the driving pressure of the entire system is normal and the interface connection is normal, the target gate valve can be controlled through the gate valve switch 4.

[0015] like Figure 1 As shown, the distribution branch 5 is connected in parallel to the main inlet and outlet oil pipelines of the trunk line. Each distribution branch corresponds to a gate valve switch 4, thereby realizing the closing or opening of the corresponding gate valve. The number of distribution branches should be combined with the number of gate valves controlled on the construction site. Too many branches will waste resources, while too few branches will make it impossible to operate and control each gate valve during the chain fracturing operation of the platform well. The rear end interface of each distribution branch is arranged side by side, and the two interfaces are labeled "gate valve open for oil supply" and "gate valve closed for oil supply". Incorrect interface connection will prevent the control and operation of the gate valve. When connecting the hydraulic lines of each branch, they should be connected in a corresponding manner, and the threaded connection of the joint should be firm and the seal reliable to avoid accidents during the control process.

[0016] like Figure 2 As shown, the relief valve 3 is closed when the control cabinet system is working normally. The relief valve only opens when the control cabinet pressure is abnormal and exceeds its set value, so that the control cabinet pressure will no longer increase and it plays an overload protection role for the hydraulic system. When the control cabinet pressure cannot be built up, it may sometimes be caused by a faulty relief valve. The insert of the relief valve can be unscrewed, the cone valve and valve seat can be removed, and the contact area between the two can be observed. If there is any debris, it can be removed.

[0017] This invention enables the control of multiple hydraulically controlled gate valves at shale gas platform well fracturing sites, effectively improving construction efficiency, reducing personnel workload, and lowering operating costs. The control cabinet for this multi-branch hydraulic control valve for shale gas fracturing is easy to install, debug, operate, and relocate, and can be directly applied to shale gas fracturing sites.

[0018] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention 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 the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A multi-branch hydraulic control valve operating cabinet for shale gas fracturing operations, characterized in that, The control cabinet is equipped with an external oil supply port (1), a gate valve control pressure gauge (2), an overflow valve (3), and a gate valve switch (4). The external oil supply port (1) provides hydraulic drive for each distribution branch (5) of the control cabinet. The gate valve control pressure gauge (2) is used to monitor the pressure of each distribution branch (5). The gate valve switch (4) is used to drive the gate valve by controlling the pressure, operate the corresponding manual directional valve, and deliver the working hydraulic oil to the corresponding gate valve drive cylinder, thereby controlling the gate valve to close or open. The overflow valve (3) is used to provide overload protection for the hydraulic system of the control cabinet.

2. The multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction according to claim 1, characterized in that, The bottom of the control cabinet is provided with a forklift hole (6).

3. The multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction according to claim 1, characterized in that, The bottom of the control cabinet is equipped with lifting lugs (7).

4. The multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction according to claim 1, characterized in that, The distribution branch (5) is connected in parallel with the main pipeline of the oil inlet and outlet, and the gate valve is controlled by a three-position four-way manual directional valve.

5. The multi-branch hydraulic control valve operating cabinet for shale gas fracturing construction according to claim 1, characterized in that, Each distribution branch (5) of the control cabinet is equipped with a gate valve switch (4).

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