Electro-hydraulic control blowout preventer control system capable of being remotely monitored

Abstract

The utility model relates to the technical field of petroleum hydraulic valves, and provides an electro-hydraulic control blowout preventer control system capable of being remotely monitored, which comprises an oil tank, a driving pump and a control manifold. The system is provided with an oil tank with an oil outlet and an oil return port, a driving pump with a pump inlet and a pump outlet, and a three-position four-way rotary valve with an input port, a first valve port, a second valve port, a backflow port and a change-over lever; the pump inlet is connected to the oil outlet, the pump outlet is connected to the input port, the backflow port is connected to the oil return port, the first valve port is communicated to the closing cavity, and the second valve port is communicated to the opening cavity; when the change-over lever is at the first position, the blowout preventer is in an open state; when the change-over lever is at the second position, the blowout preventer is in a closed state; the blowout preventer can be controlled to be opened or closed only by controlling different positions of the change-over rod, so that when the control system controls the blowout preventer to be opened or closed, the dependence on manpower can be reduced, the operation is simpler, the efficiency is higher, and the safety of the blowout preventer can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of petroleum hydraulic valve, specifically relates to a remote monitoring's electro-hydraulic control blowout preventer control system. BACKGROUND

[0002] The blowout preventer is used for closing the wellhead in the operation process of oil testing, well repairing and well completion during oil exploitation, preventing blowout accidents, combining the full sealing and half sealing functions into one, and having the characteristics of simple structure, easy operation, high pressure resistance and the like, and is a commonly used safety sealing wellhead device for preventing blowout in oil fields.

[0003] During the exploitation of oil, the blowout preventer needs to be frequently opened and closed, and generally the lock wheel of the blowout preventer is manually rotated to control the opening and closing of the blowout preventer.

[0004] However, in the related blowout preventer control technology, the blowout preventer needs to be opened and closed by manual operation, which is complicated, low in efficiency and low in safety. UTILITY MODEL CONTENTS

[0005] In view of the above defects of the prior art, the utility model provides a remote monitoring's electro-hydraulic control blowout preventer control system to solve at least one of the above technical defects in the prior art, so that when the control system controls the opening and closing of the blowout preventer, the dependence on manual operation can be reduced, the operation is simpler, the efficiency is higher, and the safety can be improved.

[0006] In order to achieve the purpose of the utility model, the utility model provides a remote monitoring's electro-hydraulic control blowout preventer control system, which comprises:

[0007] The oil tank has an oil outlet and an oil return port;

[0008] The drive pump has a pump inlet and a pump outlet, and the pump inlet is connected to the oil outlet;

[0009] The control manifold comprises a plurality of three-position four-way rotary valves, the three-position four-way rotary valve is provided with an input port, a first valve port, a second valve port, a return port and a conversion rod, the return port is connected to the oil return port, the pump outlet is connected to the input port,

[0010] The first valve port is communicated to the closing cavity, and the second valve port is communicated to the opening cavity;

[0011] When the conversion rod is in the first position, the second valve port is communicated to the input port, the oil of the oil tank is pumped to the opening cavity, the first valve port is communicated to the return port, the oil of the closing cavity is returned to the oil tank, and the blowout preventer is in the open state;

[0012] When the switching rod is in the second position, the first valve port is connected to the input port, the oil in the oil tank is pumped to the closed chamber, the second valve port is connected to the return port, the oil in the open chamber flows back to the oil tank, and the blowout preventer is in the closed state.

[0013] Preferably, it also includes multiple energy storage devices.

[0014] The accumulator is connected to the input port of each of the three-position four-way rotary valves.

[0015] Preferably, the control manifold further includes multiple hydraulic cylinders and multiple three-position four-way solenoid valves, wherein the hydraulic cylinders have piston rods connected to the switching rods.

[0016] The three-position four-way solenoid valve is connected to the hydraulic cylinder and is suitable for controlling the reciprocating motion of the piston rod.

[0017] Preferably, it also includes multiple sets of conveying pipes and multiple reels, the conveying pipes being wound on the reels.

[0018] Each set of conveying pipes includes at least a first conveying pipe and a second conveying pipe.

[0019] The first end of the first delivery pipe is connected to the first valve port, and the second end of the first delivery pipe is connected to the closing chamber.

[0020] The first end of the second delivery pipe is connected to the second valve port, and the second end of the second delivery pipe is connected to the open cavity.

[0021] Preferably, it also includes multiple male quick couplings and multiple female quick couplings.

[0022] The first valve port is connected to the male quick connector, and the second valve port is connected to the female quick connector.

[0023] The first end of the first delivery pipe is detachably connected to the male quick connector, and the first end of the second delivery pipe is detachably connected to the female quick connector.

[0024] Preferably, the drive pump includes a plunger pump and a manual pump.

[0025] The plunger pump includes a drive motor and a plunger pump body, the plunger pump body being connected to the oil outlet of the oil tank and the inlet of the three-position four-way rotary valve.

[0026] The manual pump connects the oil outlet of the oil tank to the input port of the three-position four-way rotary valve, and the manual pump and the plunger pump are connected in parallel.

[0027] Preferably, the accumulator includes an accumulator body and a high-pressure shut-off valve.

[0028] The high-pressure shut-off valve is located at the outlet end of the accumulator body, and the input port of the three-position four-way rotary valve is connected to the high-pressure shut-off valve.

[0029] Preferably, it also includes a pressure controller and a pressure sensor.

[0030] The pressure controller is located at the pump outlet.

[0031] The pressure sensor is located at the outlet end of the accumulator body.

[0032] Preferably, it also includes an overflow valve.

[0033] The overflow valve is located before the inlet of the three-position four-way rotary valve.

[0034] Preferably, it also includes a control unit.

[0035] The control unit is electrically connected to the three-position four-way solenoid valve and is adapted to control the state of the three-position four-way solenoid valve.

[0036] The beneficial effects of this utility model are as follows: The remotely monitorable electro-hydraulic blowout preventer control system provided by this utility model is achieved by setting up an oil tank with an oil outlet and an oil return port, a drive pump with a pump inlet and a pump outlet, and a three-position four-way rotary valve with an input port, a first valve port, a second valve port, a return port, and a switching lever; the pump inlet is connected to the oil outlet of the oil tank, the pump outlet is connected to the input port of the three-position four-way rotary valve, the return port of the three-position four-way rotary valve is connected to the oil return port of the oil tank, and the first valve port of the three-position four-way rotary valve is connected to the closed chamber of the blowout preventer, and the second valve port of the three-position four-way rotary valve is connected to the open chamber of the blowout preventer; when the switching lever is in the first position, the second valve port... When the valve is connected to the input port, oil from the tank is pumped to the open chamber, and the first valve port is connected to the return port, allowing oil from the closed chamber to flow back to the tank, thus opening the blowout preventer. When the valve is in the second position, the first valve port is connected to the input port, oil from the tank is pumped to the closed chamber, and the second valve port is connected to the return port, allowing oil from the open chamber to flow back to the tank, thus closing the blowout preventer. Therefore, the opening or closing state of the blowout preventer can be controlled simply by controlling the different positions of the valve's three-position four-way rotary valve. This reduces reliance on manual operation, making operation simpler, more efficient, and safer. Attached Figure Description

[0037] The above and other objects, features, and advantages of this utility model will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this application.

[0038] Figure 1 A schematic diagram of the overall structure of the remotely monitorable electro-hydraulic blowout preventer control system provided in this embodiment of the utility model;

[0039] Figure 2 for Figure 1 A schematic diagram of the remotely monitorable electro-hydraulic blowout preventer control system after removing the upper support and side doors and other accessories;

[0040] Figure 3 for Figure 2 A schematic diagram showing the connection between the drive motor and the oil tank in the center.

[0041] Figure 4 for Figure 2 A schematic diagram showing the view from the center of the three-position four-way rotary valve;

[0042] Figure 5 A schematic diagram illustrating the principle of a remotely monitored electro-hydraulic blowout preventer control system provided in this embodiment of the utility model;

[0043] Figure 6 A schematic diagram of the state of the three-position four-way rotary valve in the remotely monitored electro-hydraulic blowout preventer control system provided in this embodiment of the utility model when it is in the zero position.

[0044] Figure 7 A schematic diagram of the state of the three-position four-way rotary valve in the first position of the remotely monitorable electro-hydraulic blowout preventer control system provided in this embodiment of the utility model.

[0045] Figure 8 A schematic diagram of the state of the three-position four-way rotary valve in the second position of the remotely monitored electro-hydraulic blowout preventer control system provided in this embodiment of the utility model.

[0046] In the picture:

[0047] 1. Blowout preventer; 11. Closing chamber; 12. Opening chamber;

[0048] 100. Fuel tank; 110. Fuel outlet; 120. Fuel return port;

[0049] 200. Drive pump; 210. Pump inlet; 220. Pump outlet; 230. Plunger pump; 231. Drive motor; 232. Plunger pump body; 240. Manual pump;

[0050] 300. Control manifold; 310. Three-position four-way rotary valve; 311. Input port; 312. First valve port; 313. Second valve port; 314. Return port; 315. Switching rod; 320. Hydraulic cylinder; 321. Piston rod; 330. Three-position four-way solenoid valve;

[0051] 400. Accumulator; 410. Accumulator body; 420. High-pressure shut-off valve;

[0052] 500. Reel; 510. Male quick coupling; 520. Female quick coupling;

[0053] 600. Pressure controller; 610. Pressure sensor;

[0054] 700. Overflow valve. Detailed Implementation

[0055] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0056] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this applies. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0058] The following is combined with Figures 1 to 8 The embodiments of this utility model will be described below. It should be understood that the following description is merely an illustrative embodiment of this utility model and does not constitute any limitation on this utility model.

[0059] Combination Figures 1 to 8 The present invention provides a remotely monitored electro-hydraulic blowout preventer control system. The blowout preventer 1 has a closing chamber 11 and an opening chamber 12. The control system includes an oil tank 100, a drive pump 200 and a control manifold 300.

[0060] The oil tank 100 has an oil outlet 110 and an oil return port 120.

[0061] The drive pump 200 connects the oil tank 100 and the three-position four-way rotary valve 310. The drive pump 200 has a pump inlet 210 and a pump outlet 220. The pump inlet 210 is connected to the oil outlet 110, and the pump outlet 220 is connected to the input port 311 of the three-position four-way rotary valve 310, which can provide a high-pressure oil source for the control system.

[0062] The control manifold 300 includes multiple three-position four-way rotary valves 310. Each three-position four-way rotary valve 310 is provided with an inlet 311, a first valve port 312, a second valve port 313, a return port 314, and a switching rod 315. The return port 314 is connected to the return oil port 120.

[0063] The first valve port 312 is connected to the closed chamber 11 of the blowout preventer 1, and the second valve port 313 is connected to the open chamber 12 of the blowout preventer 1.

[0064] When the change lever 315 is in the zero position (e.g.) Figure 6 When the oil pumped from the oil tank 100 stops at the inlet 311, the first valve port 312, the second valve port 313 and the return port 314 are not connected to each other. The oil pumped from the oil tank 100 stops at the inlet 311 and there is no return oil at the return port 314. The blowout preventer 1 is in its original open or closed state, so that the piston of the blowout preventer 1 will not be moved by external forces such as vibration, and the opening and closing state of the blowout preventer 1 will not change, thereby ensuring the safety of the blowout prevention operation.

[0065] When the change lever 315 is in the first position (e.g.) Figure 7 When the oil pressure is applied, the second valve port 313 is connected to the input port 311, and the oil in the oil tank 100 is pumped to the open chamber 12 of the blowout preventer 1. The first valve port 312 is connected to the return port 314, and the oil in the closed chamber 11 flows back to the oil tank 100 through the return port 120. Under the action of oil pressure, the piston of the blowout preventer 1 gradually slides from the open chamber 12 to the closed chamber 11, so that the blowout preventer 1 is in the open state.

[0066] When the change lever 315 is in the second position (e.g.) Figure 8 When the oil is in the open chamber, the first valve port 312 is connected to the input port 311, and the oil in the oil tank 100 is pumped to the closed chamber 11. The second valve port 313 is connected to the return port 314, and the oil in the open chamber 12 flows back to the oil tank 100 through the return port 120. Under the action of oil pressure, the piston of the blowout preventer 1 gradually slides from the closed chamber 11 to the open chamber 12, so that the blowout preventer 1 is in the closed state.

[0067] It is understood that the remotely monitorable electro-hydraulic blowout preventer control system provided in the embodiments of this utility model is configured with an oil tank 100 having an oil outlet 110 and an oil return port 120, a drive pump 200 having a pump inlet 210 and a pump outlet 220, and a three-position four-way rotary valve 310 having an input port 311, a first valve port 312, a second valve port 313, a return port 314, and a switching lever 315; the pump inlet 210 is connected to the oil outlet 110 of the oil tank 100, the pump outlet 220 is connected to the input port 311 of the three-position four-way rotary valve 310, the return port 314 of the three-position four-way rotary valve 310 is connected to the oil return port 120 of the oil tank 100, and the first valve port 312 of the three-position four-way rotary valve 310 is connected to the closed chamber 11 of the blowout preventer 1, and the second valve port 313 of the three-position four-way rotary valve 310 is connected to the open chamber 12 of the blowout preventer 1; so that the switching lever 315 is connected to the oil outlet 110 of the oil tank 100, the pump inlet 100 is connected to the oil outlet 110 of the oil tank 100, the pump outlet 220 is connected to the input port 311 of the three-position four-way rotary valve 310, the return port 314 of the three-position four-way rotary valve 310 is connected to the return port 120 of the oil tank 100, and the switching lever 315 is connected to the oil outlet 110 of the oil tank 100, the pump outlet 210 is connected to the oil outlet 110 of the oil tank 100, the pump outlet 210 is connected to When lever 315 is in the first position, the second valve port 313 is connected to the input port 311, the oil in the tank 100 is pumped to the open chamber 12, the first valve port 312 is connected to the return port 314, the oil in the closed chamber 11 flows back to the tank 100, and the blowout preventer 1 is in the open state. When lever 315 is in the second position, the first valve port 312 is connected to the input port 311, the oil in the tank 100 is pumped to the closed chamber 11, the second valve port 313 is connected to the return port 314, the oil in the open chamber 12 flows back to the tank 100, and the blowout preventer 1 is in the closed state. Thus, by controlling the different positions of lever 315 of the three-position four-way rotary valve 310, the open or closed state of the blowout preventer 1 can be controlled. This reduces the reliance on manual operation when the control system controls the opening or closing of the blowout preventer 1, making the operation simpler, more efficient, and improving its safety.

[0068] Furthermore, in some embodiments of this utility model, the control system further includes multiple accumulators 400, with up to five accumulators and four three-position four-way rotary valves 310. The accumulators 400 are connected to the input port 311 of each three-position four-way rotary valve 310, enabling rapid provision of high-pressure oil to the valves.

[0069] Specifically, in combination Figure 2 and Figure 5 In some embodiments of this utility model, the control manifold 300 further includes multiple hydraulic cylinders 320 and multiple three-position four-way solenoid valves 330. Each hydraulic cylinder 320 has a piston rod 321 connected to a switching rod 315. Four hydraulic cylinders 320 and four three-position four-way solenoid valves 330 can be configured, with each hydraulic cylinder 320 corresponding to each three-position four-way rotary valve 310, and each three-position four-way solenoid valve 330 corresponding to each hydraulic cylinder 320.

[0070] Furthermore, the three-position four-way solenoid valve 330 is connected to the hydraulic cylinder 320 and can control the reciprocating motion of the piston rod 321, thereby pushing the switching rod 315 to switch between different positions. In other words, the state of the three-position four-way solenoid valve 330 can be controlled to control the state of the three-position four-way rotary valve 310, thereby controlling the opening or closing state of the blowout preventer 1. This makes the control of the blowout preventer 1 easier, as only the state of the three-position four-way solenoid valve 330 needs to be controlled, enabling remote control of the blowout preventer 1.

[0071] Furthermore, combined Figures 2 to 4 In some embodiments of this utility model, the control system further includes multiple sets of conveying pipes and multiple reels 500. The conveying pipes can be arranged in four sets, each set corresponding to each blowout preventer 1 and each three-position four-way rotary valve 310. The conveying pipes can be wound onto the reels 500 for easy storage.

[0072] Each set of delivery pipes includes at least a first delivery pipe and a second delivery pipe.

[0073] The first end of the first delivery pipe is connected to the first valve port 312 of the three-position four-way rotary valve 310, and the second end of the first delivery pipe is connected to the closing chamber 11.

[0074] The first end of the second delivery pipe is connected to the second valve port 313 of the three-position four-way rotary valve 310, and the second end of the second delivery pipe is connected to the opening chamber 12 of the blowout preventer 1.

[0075] Setting up a delivery pipe allows the control system to be located away from the blowout preventer 1 and enables the blowout preventer 1 to be switched on and off, further realizing remote control and thus improving control safety.

[0076] For example, the delivery pipe can be a high-pressure hose, NPT1 / 2″×35MPa, a total of 10m×8 pipes (2 pipes per group), and the length of the delivery pipe can be extended according to the actual site conditions, such as 20m or 30m.

[0077] Of course, in order to facilitate the quick installation and connection of each delivery pipe, in some embodiments of this utility model, the control system also includes multiple male quick connectors 510 and multiple female quick connectors 520.

[0078] The first port 312 of the three-position four-way rotary valve 310 is connected to the male quick connector 510, and the second port 313 is connected to the female quick connector 520.

[0079] The first end of the first conveying pipe is detachably connected to the male quick connector 510, and the first end of the second conveying pipe is detachably connected to the female quick connector 520.

[0080] Combination Figures 2 to 4In some embodiments of this utility model, the drive pump 200 includes a plunger pump 230 and a manual pump 240.

[0081] The plunger pump 230 includes a drive motor 231 and a plunger pump body 232. The plunger pump body 232 is connected to the oil outlet 110 of the oil tank 100 and the inlet 311 of the three-position four-way rotary valve 310. The displacement of the plunger pump 230 can be 15L / min, and the working pressure is 21Mpa.

[0082] The manual pump 240 connects the oil outlet 110 of the oil tank 100 to the inlet 311 of the three-position four-way rotary valve 310. The manual pump 240 is connected in parallel with the plunger pump 230. In the event of an unexpected stop of the drive pump 200, the manual pump 240 can be used to provide a high-pressure oil source for the control system, ensuring the safety of the blowout preventer 1. The manual pump 240 operates at a pressure of 21 MPa and a flow rate of 38 ml / cycle.

[0083] Furthermore, to ensure that the control system can quickly provide a high-pressure oil source when needed, the pressure of the control system can be automatically adjusted by an electronic pressure controller. When the pressure is below 18.9 MPa, the drive motor 231 starts to drive the plunger pump body 232 to work; when the pressure reaches 21 MPa, the drive motor 231 stops working.

[0084] Combination Figures 3 to 5 In some embodiments of this utility model, the accumulator 400 includes an accumulator body 410 and a high-pressure shut-off valve 420.

[0085] A high-pressure shut-off valve 420 is located at the outlet end of the accumulator body 410, and the inlet 311 of the three-position four-way rotary valve 310 is connected to the high-pressure shut-off valve 420. This improves the sealing performance of the accumulator 400 and prevents leakage.

[0086] The accumulator 400 can be configured as five 40L accumulators with a working pressure of 31.5 MPa and a pre-charged nitrogen pressure of 7 ± 0.7 MPa.

[0087] Combination Figure 5 In some embodiments of this utility model, the control system further includes a pressure controller 600 and a pressure sensor 610.

[0088] The pressure controller 600 is located at the pump outlet 220 and can control the output pressure of the oil pumped by the drive pump 200, preventing overload of the pressure in the pipelines of the control system and improving safety.

[0089] The pressure sensor 610 is installed at the outlet end of the accumulator body 410, which can monitor the pressure of the control system pipeline and improve the intelligence level of the control system.

[0090] In addition, in some embodiments of this utility model, the control system also includes an overflow valve 700. The overflow valve 700 is located in front of the input port 311 of the three-position four-way rotary valve 310, which can effectively protect the three-position four-way rotary valve 310 from damage by overloaded high-pressure oil, thereby ensuring the maintenance of the switch state of the blowout preventer 1 and improving safety.

[0091] Of course, in order to improve the intelligence level of the control system and the ease of operation of remote control, in some embodiments of this utility model, the control system also includes a control unit.

[0092] The control unit is electrically connected to the three-position four-way solenoid valve 330 and can control the state of the three-position four-way solenoid valve 330. In turn, the switch state of the blowout preventer 1 can be controlled by controlling the state of the three-position four-way rotary valve 310. This is convenient and simple. In addition, the control unit can also be programmed with a corresponding PLC program to control the state of the three-position four-way solenoid valve 330, which can realize the convenience of remote control.

[0093] The control unit can be set up as a console, which controls the state of the three-position four-way solenoid valve 330 to realize the opening and closing of the blowout preventer 1, allowing the operator to be directly exposed to high pressure risks, which is especially suitable for high-risk scenarios such as oil and mining.

[0094] The communication between the control console and the three-position four-way solenoid valve 330 can be achieved through redundant wired (CAN bus, industrial Ethernet) or wireless (5G, Wi-Fi 6) communication, ensuring low-latency signal transmission and data security through encryption protocols.

[0095] The console also allows for multi-level monitoring, such as deploying pressure or temperature sensors to collect the status of the control system in real time.

[0096] You can also set up a module to record fault logs to record the event timeline, which facilitates post-event tracing and analysis.

[0097] In addition, the control panel can be equipped with a visual dashboard, such as a high-resolution touch screen, to dynamically display pressure curves, hydraulic schematics, and 3D models of the equipment.

[0098] The console also includes access control, such as separate operator, engineer, and administrator accounts, with hierarchical access control for sensitive operations.

[0099] Through such modular design, intelligent monitoring, and user-friendly interaction, the hydraulic remote control console is becoming the "nerve center" of hydraulic systems in the Industry 4.0 era, driving the upgrade of traditional hydraulic equipment towards safety, efficiency, and intelligence.

[0100] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0101] In the description of this specification, the use of terms such as "preferred embodiment," "another embodiment," "some embodiments," "other embodiments," or "specific example," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0102] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A remotely monitorable electro-hydraulic blowout preventer control system, wherein the blowout preventer has a closing chamber and an opening chamber, characterized in that, The control system includes: The fuel tank has an oil outlet and an oil return outlet; A drive pump has a pump inlet and a pump outlet, the pump inlet being connected to the oil outlet; The control manifold includes multiple three-position four-way rotary valves. Each three-position four-way rotary valve has an inlet, a first valve port, a second valve port, a return port, and a switching lever. The return port is connected to the return oil port, and the pump outlet is connected to the inlet. The first valve port is connected to the closed chamber, and the second valve port is connected to the open chamber; When the switching rod is in the first position, the second valve port is connected to the input port, the oil in the oil tank is pumped to the open chamber, the first valve port is connected to the return port, the oil in the closed chamber flows back to the oil tank, and the blowout preventer is in the open state. When the switching rod is in the second position, the first valve port is connected to the input port, the oil in the oil tank is pumped to the closed chamber, the second valve port is connected to the return port, the oil in the open chamber flows back to the oil tank, and the blowout preventer is in the closed state.

2. The remotely monitorable electro-hydraulic blowout preventer control system as described in claim 1, characterized in that, It also includes multiple energy storage devices. The accumulator is connected to the input port of each of the three-position four-way rotary valves.

3. The remotely monitorable electro-hydraulic blowout preventer control system as described in claim 2, characterized in that, The control manifold also includes multiple hydraulic cylinders and multiple three-position four-way solenoid valves. Each hydraulic cylinder has a piston rod connected to the switching rod. The three-position four-way solenoid valve is connected to the hydraulic cylinder and is suitable for controlling the reciprocating motion of the piston rod.

4. The remotely monitorable electro-hydraulic blowout preventer control system as described in claim 3, characterized in that, It also includes multiple sets of conveyor pipes and multiple reels, the conveyor pipes being wound on the reels. Each set of conveying pipes includes at least a first conveying pipe and a second conveying pipe. The first end of the first delivery pipe is connected to the first valve port, and the second end of the first delivery pipe is connected to the closing chamber. The first end of the second delivery pipe is connected to the second valve port, and the second end of the second delivery pipe is connected to the open cavity.

5. The remotely monitorable electro-hydraulic blowout preventer control system as described in claim 4, characterized in that, It also includes multiple male quick couplings and multiple female quick couplings. The first valve port is connected to the male quick connector, and the second valve port is connected to the female quick connector. The first end of the first delivery pipe is detachably connected to the male quick connector, and the first end of the second delivery pipe is detachably connected to the female quick connector.

6. The remotely monitorable electro-hydraulic blowout preventer control system as described in claim 5, characterized in that, The drive pump includes a plunger pump and a manual pump. The plunger pump includes a drive motor and a plunger pump body, the plunger pump body being connected to the oil outlet of the oil tank and the inlet of the three-position four-way rotary valve. The manual pump connects the oil outlet of the oil tank to the input port of the three-position four-way rotary valve, and the manual pump and the plunger pump are connected in parallel.

7. The remotely monitorable electro-hydraulic blowout preventer control system as described in claim 6, characterized in that, The accumulator includes an accumulator body and a high-pressure shut-off valve. The high-pressure shut-off valve is located at the outlet end of the accumulator body, and the input port of the three-position four-way rotary valve is connected to the high-pressure shut-off valve.

8. The remotely monitorable electro-hydraulic blowout preventer control system as described in claim 7, characterized in that, It also includes a pressure controller and a pressure sensor. The pressure controller is located at the pump outlet. The pressure sensor is located at the outlet end of the accumulator body.

9. The remotely monitorable electro-hydraulic blowout preventer control system as described in claim 8, characterized in that, It also includes an overflow valve, The overflow valve is located before the inlet of the three-position four-way rotary valve.

10. The remotely monitorable electro-hydraulic blowout preventer control system as described in claim 9, characterized in that, It also includes a control unit, The control unit is electrically connected to the three-position four-way solenoid valve and is adapted to control the state of the three-position four-way solenoid valve.

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