Blowout preventer control system

Abstract

This utility model relates to the field of petroleum hydraulic valve technology, and provides a blowout preventer (BOP) control system. The system includes a BOP control host, a driller's platform, an emergency control box, and an accumulator assembly. The BOP control system provided by this utility model simplifies the oil supply and return structure between the three-position four-way valves and the oil tank by setting up a BOP control host with an oil tank, an input pipe, and multiple three-position four-way rotary valves. Each three-position four-way rotary valve is mounted on the oil tank, the input pipe is connected to the oil outlet, each input port is connected to the input pipe, and each return port is connected to the return port. This reduces the manufacturing cost of the BOP control system. Furthermore, the driller's platform is electrically connected to the BOP control host; multiple emergency control boxes are electrically connected to the BOP control host, and each emergency control box is distributed in multiple sections, making the emergency stop control operation of the BOP easier and simpler. The accumulator assembly is connected to the oil tank.

Description

Technical Field

[0001] This utility model relates to the field of petroleum hydraulic valve technology, specifically to a blowout preventer control system. Background Technology

[0002] Blowout preventers (BOPs) are used to close the wellhead during oil extraction operations such as well testing, well workover, and well completion to prevent blowout accidents. They combine the functions of full sealing and partial sealing into one unit and are characterized by simple structure, easy operation, and high pressure resistance. They are commonly used safety wellhead sealing devices in oil fields to prevent blowouts.

[0003] During oil extraction, blowout preventers (BOPs) need to be switched on and off frequently. To avoid safety accidents caused by manually rotating the BOP's locking wheel, a hydraulic system is usually used to remotely control the BOP's switching on and off.

[0004] However, among the relevant blowout preventer control technologies, the blowout preventer control system has a complex structure, high manufacturing cost, and is difficult to operate in an emergency stop. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the present invention provides a blowout preventer control system to solve at least one of the above-mentioned technical defects in the prior art, making the structure of the blowout preventer control system simpler, saving manufacturing costs, and making the emergency stop operation of the blowout preventer simpler.

[0006] To achieve the purpose of this utility model, a blowout preventer control system is provided, comprising:

[0007] The blowout preventer control unit has an oil tank, an input pipe, and multiple three-position four-way rotary valves.

[0008] The oil tank is equipped with an oil return port and an oil outlet.

[0009] Each of the three-position four-way rotary valves is provided with an inlet, a first valve port, a return port, and a second valve port, and each of the three-position four-way rotary valves is located in the oil tank.

[0010] The input pipe is connected to the oil outlet, each input port is connected to the input pipe, and each return port is connected to the return port;

[0011] The driller's platform is electrically connected to the blowout preventer control unit.

[0012] Multiple emergency control boxes are electrically connected to the blowout preventer control unit, and each emergency control box is distributed in multiple areas;

[0013] An energy storage assembly is connected to the fuel tank.

[0014] Preferably, each of the emergency control boxes includes a control box body and multiple fixing lugs.

[0015] The control box body is rectangular, and each fixing lug is evenly distributed on the control box body.

[0016] Preferably, the energy storage assembly includes a fixed support, a first frame, a second frame, multiple energy storage units, and an energy storage manifold.

[0017] The first frame is mounted on the fixed support.

[0018] The second frame is hinged to the fixed support, so that a variable angle is formed between the first frame and the second frame.

[0019] The plurality of energy storage devices are evenly distributed on the first frame and the second frame.

[0020] The energy storage manifold connects to each of the energy storage devices.

[0021] Preferably, the energy storage manifold includes a first support pipe and a second support pipe, the fixed support includes a first fixed plate and a second fixed plate, and the plurality of energy storage devices include a first energy storage device group and a second energy storage device group.

[0022] The first end of the first support pipe is fixedly connected to the first fixing plate, the second end of the first support pipe is fixedly connected to the second fixing plate, the first support pipe is connected to the first accumulator group, and the first frame is disposed on the first support pipe.

[0023] The first end of the second support tube is hinged to the first fixed plate, the second end of the second support tube is hinged to the second fixed plate, the second support tube is connected to the second energy storage group, and the second frame is disposed on the second support tube.

[0024] Preferably, the first frame includes a vertical support A, a horizontal support B, a horizontal support A, and a support groove A.

[0025] The vertical support A and the vertical support B are symmetrically and parallelly arranged. The vertical support A is fixed to the first end of the first support tube, and the vertical support B is fixed to the second end of the first support tube. The first end of the horizontal support A is fixed to the vertical support A, and the second end of the horizontal support A is fixed to the vertical support B.

[0026] The support groove A is provided on the vertical support A and the vertical support B, forming the support space A.

[0027] The first energy storage unit is located in the support space of A.

[0028] Preferably, it also includes a distributor control console, which includes a distributor solenoid valve box and multiple distributor rotary valves, and the blowout preventer control host is equipped with a PLC master station box.

[0029] Each of the aforementioned diverter valves is connected to the oil tank.

[0030] The diversion solenoid valve box is electrically connected to the PLC master station box, and the diversion solenoid valve box is electrically connected to each of the diversion rotary valves.

[0031] Preferably, the distributor control console further includes a distributor supply pipe and a distributor return pipe.

[0032] Each of the aforementioned diverter valves has an oil inlet, a first diverter port, a return port, and a second diverter port.

[0033] Each of the aforementioned diverter valves is uniformly distributed in a linear array.

[0034] Each oil inlet is connected to the branch oil supply pipe, and each oil return inlet is connected to the branch return oil pipe.

[0035] Both the diversion oil supply pipe and the diversion oil return pipe are connected to the oil tank.

[0036] Preferably, the driller's platform includes a driller's platform body, a driller's platform support, and multiple digital displays.

[0037] The driller's platform body is fixed to the driller's platform bracket, and the digital display is located on the driller's platform body.

[0038] The driller's platform is electrically connected to the PLC master station box.

[0039] Preferably, it also includes an auxiliary driller's platform, which is electrically connected to the PLC master station box.

[0040] The auxiliary driller's platform is exactly the same as the driller's platform.

[0041] Preferably, the three-position four-way rotary valve includes a valve core, a valve panel, a valve body, a valve cover, a valve seat, and a rotating shaft;

[0042] The valve core is provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, wherein the first flow channel and the second flow channel are interconnected, and the third flow channel and the fourth flow channel are interconnected.

[0043] The valve panel is detachably disposed on the valve core. The valve panel is provided with a first through hole communicating with the first flow channel, a second through hole communicating with the second flow channel, a third through hole communicating with the third flow channel, and a fourth through hole communicating with the fourth flow channel.

[0044] The valve body is provided with a receiving cavity, and the valve core and the valve panel are disposed in the receiving cavity;

[0045] The valve cover is provided with an input channel, a first channel, a return channel, and a second channel;

[0046] The valve seat includes a first valve seat, a second valve seat, a third valve seat, and a fourth valve seat. The first valve seat is connected to the input channel, the second valve seat is connected to the first channel, the third valve seat is connected to the return channel, and the fourth valve seat is connected to the second channel.

[0047] The rotating shaft is connected to the valve core and drives the valve core to rotate;

[0048] In the first state, the rotating shaft rotates in the positive direction, the first through hole engages with the first valve seat, the second through hole engages with the second valve seat, so that the input channel is connected to the first channel; the third through hole engages with the third valve seat, and the fourth through hole engages with the fourth valve seat, so that the second channel is connected to the return channel;

[0049] In the second state, the rotating shaft rotates in the opposite direction, the first through hole engages with the second valve seat, the second through hole engages with the third valve seat, so that the first channel connects to the return channel; the third through hole engages with the fourth valve seat, the fourth through hole engages with the first valve seat, and the second channel connects to the input channel.

[0050] The beneficial effects of this utility model are as follows: The blowout preventer (BOP) control system provided by this utility model simplifies the oil supply and return structure between the three-position four-way valves and the oil tank by setting up a BOP control host with an oil tank, an input pipe, and multiple three-position four-way rotary valves. Each three-position four-way rotary valve is mounted on the oil tank, the input pipe is connected to the oil outlet, each input port is connected to the input pipe, and each return port is connected to the return port. This reduces the manufacturing cost of the BOP control system. Furthermore, the driller's platform is electrically connected to the BOP control host; multiple emergency control boxes are electrically connected to the BOP control host, and each emergency control box is distributed in multiple areas, making the emergency stop control operation of the BOP easier and simpler. An accumulator assembly is connected to the oil tank. Attached Figure Description

[0051] 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.

[0052] Figure 1 A schematic diagram of the overall structure of the blowout preventer control system provided in this embodiment of the utility model;

[0053] Figure 2A schematic diagram of the structure of the blowout preventer control host in the blowout preventer control system provided in this embodiment of the utility model;

[0054] Figure 3 for Figure 1 Enlarged schematic diagram of the emergency control box;

[0055] Figure 4 A schematic diagram of the accumulator assembly in the blowout preventer control system provided in this embodiment of the utility model;

[0056] Figure 5 A schematic diagram of the state of the second frame in the accumulator assembly of the blowout preventer control system provided in this embodiment of the utility model after rotating by a certain angle.

[0057] Figure 6 for Figure 1 Enlarged schematic diagram of the central splitter control console;

[0058] Figure 7 A schematic diagram of the structure of the three-position four-way rotary valve in the blowout preventer control system provided in this embodiment of the utility model;

[0059] Figure 8 for Figure 7 Schematic sectional view along the middle AA direction;

[0060] Figure 9 This is a schematic diagram of the structure of a three-position four-way rotary valve after removing the valve body and some drive components.

[0061] Figure 10 for Figure 9 Exploded view;

[0062] Figure 11 for Figure 10 A diagram from another perspective.

[0063] In the picture:

[0064] 1. Blowout preventer; 2. Diverter assembly;

[0065] 100. Blowout Preventer (BOP) Control Unit; 110. Oil Tank; 111. Oil Return Port; 112. Oil Outlet Port; 120. Input Pipe; 130. Three-position Four-way Rotary Valve; 131. Input Port; 132. First Valve Port; 133. Return Port; 134. Second Valve Port; 140. PLC Master Station Box;

[0066] 200. Drilling platform; 210. Drilling platform body; 220. Drilling platform support; 230. Digital display; 240. Auxiliary drilling platform;

[0067] 300. Emergency control box; 310. Control box body; 320. Fixing lug;

[0068] 400. Accumulator assembly; 410. Fixed support; 411. First fixed plate; 412. Second fixed plate; 420. First frame; 421. Vertical support A; 422. Vertical support B; 423. Horizontal support A; 424. Support groove A; 425. Support space A;

[0069] 430. Second Frame;

[0070] 440. Accumulator; 441. First accumulator group; 442. Second accumulator group;

[0071] 450. Energy storage manifold; 451. First support pipe; 452. Second support pipe;

[0072] 500. Diverter control panel; 510. Diverter solenoid valve box; 520. Diverter rotary valve; 521. Oil inlet; 522. First diverter port; 523. Return port; 524. Second diverter port; 530. Diverter oil supply pipe; 540. Diverter return pipe;

[0073] 610. Valve core; 611. First flow channel; 612. Second flow channel; 613. Third flow channel; 614. Fourth flow channel;

[0074] 620. Valve panel; 621. First through hole; 622. Second through hole; 623. Third through hole; 624. Fourth through hole;

[0075] 630. Valve body; 631. Receiving cavity;

[0076] 640. Valve cover; 641. Input channel; 642. First channel; 643. Return channel; 644. Second channel;

[0077] 650, Valve seat; 651, First valve seat; 652, Second valve seat; 654, Fourth valve seat;

[0078] 660. Rotating shaft. Detailed Implementation

[0079] 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.

[0080] 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.

[0081] 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.

[0082] The following is combined with Figures 1 to 11 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.

[0083] Combination Figures 1 to 11 The present invention provides a blowout preventer control system that can be used to control the on / off state of blowout preventer 1.

[0084] For example, the blowout preventer has a closing chamber 1 and an opening chamber 2; when hydraulic oil enters the closing chamber 1, the volume of the closing chamber 1 increases, the volume of the opening chamber 2 decreases, the piston 3 moves towards the opening chamber 2, and the blowout preventer closes; when hydraulic oil enters the opening chamber 2, the volume of the opening chamber 2 increases, the volume of the closing chamber 1 decreases, the piston 3 moves towards the closing chamber 1, and the blowout preventer opens.

[0085] An embodiment of this utility model provides a blowout preventer control system including a blowout preventer control host 100, a driller's table 200, an emergency control box 300, and an accumulator assembly 400.

[0086] The blowout preventer control unit 100 includes an oil tank 110, an input pipe 120, and multiple three-position four-way rotary valves 130.

[0087] The oil tank 110 is equipped with an oil return port 111 and an oil outlet 112.

[0088] Each three-position four-way rotary valve 130 is provided with an inlet 131, a first valve port 132, a return port 133, and a second valve port 134.

[0089] The inlet pipe 120 is connected to the outlet port 112. The inlet port 131 of each three-position four-way rotary valve 130 is connected to the inlet pipe 120, allowing oil in the tank 110 to enter each three-position four-way rotary valve 130 via the inlet pipe 120. It is not necessary to connect each three-position four-way rotary valve 130's inlet port 131 individually to the tank 110; each inlet port 131 only needs to be connected to the inlet pipe 120, resulting in a simpler structure and reduced manufacturing costs. Furthermore, each three-position four-way rotary valve 130 is mounted on the tank 110, and the return port 133 of each three-position four-way rotary valve 130 is connected to the return port 111. This eliminates the need for additional piping to lead the return port 133 of each three-position four-way rotary valve 130 to the return port 111 of the tank 110, further simplifying the structure and saving costs.

[0090] The driller's platform 200 is electrically connected to the blowout preventer control unit 100 and can control the blowout preventer control unit 100. For example, the blowout preventer control unit 100 can also be remotely controlled using a 50-meter network cable and a 50-meter 6-core * 1mm² DC12V power cable.

[0091] Multiple emergency control boxes 300 are electrically connected to the blowout preventer control host 100. Each emergency control box 300 is distributed in multiple sections, making the emergency stop control operation of the blowout preventer easier and simpler.

[0092] The accumulator assembly 400 is connected to the oil tank 110 to provide a high-pressure oil source for the blowout preventer control system.

[0093] It is understood that the blowout preventer (BOP) control system provided in the embodiments of this utility model simplifies the oil supply and return structure between the three-position four-way valves 130 and the oil tank 110 by setting up a BOP control host 100 with an oil tank 110, an input pipe 120, and multiple three-position four-way rotary valves 130. Each three-position four-way rotary valve 130 is mounted on the oil tank 110, the input pipe 120 is connected to the oil outlet 112, each input port 131 is connected to the input pipe 120, and each return port 133 is connected to the return port 111, thereby reducing the manufacturing cost of the BOP control system. Furthermore, the driller's platform 200 is electrically connected to the BOP control host 100; multiple emergency control boxes 300 are electrically connected to the BOP control host 100, and each emergency control box 300 is distributed in multiple sections, making the emergency stop control operation of the BOP easier and simpler. An accumulator assembly 400 is connected to the oil tank 110.

[0094] Combination Figure 3 In some embodiments of this utility model, each emergency control box 300 includes a control box body 310 and a plurality of fixed ears 320.

[0095] The control box body 310 is rectangular, and each fixing lug 320 is evenly distributed on the control box body 310. For example, four fixing lugs 320 can be provided, with each fixing lug 320 located at one of the four corners of the rectangular control box body 310, making the structure of the emergency control box 300 more stable.

[0096] Combination Figure 4 and Figure 5 In some embodiments of this utility model, the energy storage assembly 400 includes a fixed support 410, a first frame 420, a second frame 430, a plurality of energy storage units 440, and an energy storage manifold 450.

[0097] The first frame 420 is mounted on the fixed support 410.

[0098] The second frame 430 is hinged to the fixed support 410, forming a variable angle between the first frame 420 and the second frame 430. This facilitates the rotation of the second frame 430, making it easier to disassemble the accumulator 440. The variable angle can range from 0° to 90°.

[0099] Multiple accumulators 440 are evenly distributed on the first frame 420 and the second frame 430, which can provide sufficient high-pressure oil reserves for the blowout preventer control system.

[0100] The energy storage manifold 450 connects to each energy storage unit 440, so that the high-pressure oil stored in each energy storage unit 440 can be used in the blowout preventer control system, thereby improving utilization efficiency.

[0101] The accumulator assembly 400 is provided with a fixed support 410, and a first frame 420 is set on the fixed support 410. A second frame 430 is hinged to the fixed support 410, so that the first frame 420 and the second frame 430 can form a variable angle. Multiple accumulators 440 are evenly distributed on the first frame 420 and the second frame 430. An energy storage manifold 450 is provided to connect each accumulator 440, which can facilitate the disassembly and replacement of the accumulators 440. Therefore, even if the accumulator assembly 400 is installed after the blowout preventer control system, it is easier to disassemble, replace and maintain, thereby reducing maintenance costs and improving user experience.

[0102] Specifically, in combination Figure 4 and Figure 5 In some embodiments of this utility model, the energy storage manifold 450 includes a first support pipe 451 and a second support pipe 452, the fixed support 410 includes a first fixed plate 411 and a second fixed plate 412, and the multiple energy storage devices 440 include a first energy storage device group 441 and a second energy storage device group 442.

[0103] The first end of the first support tube 451 is fixedly connected to the first fixing plate 411, the second end of the first support tube 451 is fixedly connected to the second fixing plate 412, the first support tube 451 is connected to the first energy storage unit 440, and the first frame 420 is disposed on the first support tube 451.

[0104] The first end of the second support tube 452 is hinged to the first fixed plate 411, and the second end of the second support tube 452 is hinged to the second fixed plate 412. The second support tube 452 is connected to the second accumulator group 440. The second frame 430 is disposed on the second support tube 452, so that the second support tube 452 is connected to the second accumulator group 442. The second frame 430 is disposed on the second support tube 452, so that the second support tube 452 can rotate around the hinge, thereby enabling the second frame 430 to rotate around the fixed support 410.

[0105] The first support tube 451 can support the first frame 420 and connect to the first energy storage group 441; the second support tube 452 can support the second frame 430 and connect to the second energy storage group 442; making the structure of the energy storage assembly 400 simpler and saving costs.

[0106] In addition, combined Figure 4 and Figure 5 In some embodiments of this utility model, the first frame 420 includes a vertical support 421, a horizontal support 422, a horizontal support 423, and a support groove 424.

[0107] Vertical support A 421 and vertical support B 422 are symmetrically and parallelly arranged. Vertical support A 421 is fixed to the first end of the first support tube 451, and vertical support B 422 is fixed to the second end of the first support tube 451. The first end of horizontal support A 423 is fixed to vertical support A 421, and the second end of horizontal support A 423 is fixed to vertical support B 422, making the structure of the first frame 420 simple and stable.

[0108] The A support groove 424 is provided on the A vertical support 421 and the B vertical support 422 to form the A support space 425.

[0109] The first accumulator group 441 is installed in the support space 425.

[0110] The first accumulator group 441 is installed at the support space 425, so that the first accumulator group 441 can be stably fixed, ensuring the safety of the accumulator assembly 400.

[0111] Combination Figure 6In some embodiments of this utility model, the blowout preventer control system further includes a diverter control console 500, which includes a diverter solenoid valve box 510 and multiple diverter rotary valves 520. The blowout preventer control host 100 is equipped with a PLC master station box 140.

[0112] Each diverter valve 520 is connected to an oil tank 110, which can provide a high-pressure oil source for each diverter valve 520. The oil in each diverter valve 520 can also flow back to the oil tank 110.

[0113] The diversion solenoid valve box 510 is electrically connected to the PLC master station box 140, and the diversion solenoid valve box 510 is electrically connected to each diversion rotary valve 520, so that each diversion rotary valve 520 can be controlled by the PLC master station box 140, thereby improving the level of intelligence.

[0114] The splitter control console 500 is also connected to the splitter component 2 and can control the status of the splitter component 2.

[0115] Specifically, in combination Figure 6 In some embodiments of this utility model, the diverter control console 500 further includes a diverter oil supply pipe 530 and a diverter return oil pipe 540.

[0116] Each diverter valve 520 has an oil inlet 521, a first diverter port 522, a return port 523, and a second diverter port 524. Both the first diverter port 522 and the second diverter port 524 are connected to the diverter assembly and can control the state of the diverter assembly.

[0117] Each diverter valve 520 is uniformly distributed in a linear array.

[0118] Each oil inlet 521 is connected to the diversion oil inlet pipe 530, and each return oil inlet 523 is connected to the diversion return oil inlet pipe 540.

[0119] Both the diversion oil supply pipe 530 and the diversion oil return pipe 540 are connected to the oil tank 110. This simplifies the structure of the diverter control console 500 and saves manufacturing costs.

[0120] Combination Figure 1 In some embodiments of this utility model, the driller's platform 200 includes a driller's platform body 210, a driller's platform support 220, and a plurality of digital displays 230.

[0121] The driller's platform body 210 is fixed on the driller's platform bracket 220, and the digital display 230 is installed on the driller's platform body 210 to make the driller's platform body 210 more stable.

[0122] The driller's platform 210 is electrically connected to the PLC master station box 140, so that the driller's platform 210 can control each three-position four-way rotary valve 130 through the PLC master station box 140.

[0123] Of course, combined Figure 1 In some embodiments of this utility model, the blowout preventer control system also includes an auxiliary driller platform 240, which is electrically connected to the PLC master station box 140, so that the auxiliary driller platform 240 can also control each three-position four-way rotary valve 130 through the PLC master station box 140, making the operation more convenient and simple.

[0124] The auxiliary driller platform 240 is exactly the same as the driller platform 200 to save on manufacturing costs.

[0125] Combination Figures 7 to 11 In some embodiments of this utility model, the three-position four-way rotary valve 130 includes a valve core 610, a valve panel 620, a valve body 630, a valve cover 640, a valve seat 650, and a rotating shaft 660.

[0126] The valve core 610 is provided with a first flow channel 611, a second flow channel 612, a third flow channel 613, and a fourth flow channel 614. The first flow channel 611 and the second flow channel 612 are interconnected, and the third flow channel 613 and the fourth flow channel 614 are interconnected. The valve core 610 can be made of hard alloy to increase strength and further improve service life.

[0127] The valve panel 620 is detachably mounted on the valve core 610. The valve panel 620 has a first through hole 621 communicating with the first flow channel 611, a second through hole 622 communicating with the second flow channel 612, a third through hole 623 communicating with the third flow channel 613, and a fourth through hole 624 communicating with the fourth flow channel 614. The valve panel 620 can be made of alloy steel to enhance its wear resistance and further improve its service life.

[0128] The valve body 630 is provided with a receiving cavity 631, and the valve core 610 and the valve panel 620 are both located in the receiving cavity 631.

[0129] The valve cover 640 is provided with an input channel 641, a first channel 642, a return channel 643, and a second channel 644;

[0130] Valve seat 650 includes a first valve seat 651, a second valve seat 652, a third valve seat, and a fourth valve seat 654. The first valve seat 651 is connected to the input channel 641, the second valve seat 652 is connected to the first channel 642, the third valve seat is connected to the return channel 643, and the fourth valve seat 654 is connected to the second channel 644.

[0131] The rotating shaft 660 is connected to the valve core 610 and can drive the valve core 610 to rotate.

[0132] In the first state, the rotating shaft 660 rotates in the positive direction, the first through hole 621 engages with the first valve seat 651, the second through hole 622 engages with the second valve seat 652, making the input channel 641 connect to the first channel 642. The third through hole 623 engages with the third valve seat, and the fourth through hole 624 engages with the fourth valve seat 654, making the second channel 644 connect to the return channel 643.

[0133] The first channel 642 can be connected to the closing chamber of the blowout preventer, and the second channel 644 can be connected to the opening chamber of the blowout preventer. Hydraulic oil can enter the first channel 642 from the input channel 641, and then enter the closing chamber, increasing the volume of the closing chamber. Hydraulic oil in the opening chamber can enter the second channel 644 and return to the oil tank 110 via the return channel 643, decreasing the volume of the opening chamber. This causes the piston to move towards the opening chamber, closing the blowout preventer.

[0134] In the second state, the rotating shaft 660 rotates in the opposite direction, the first through hole 621 engages with the second valve seat 652, and the second through hole 622 engages with the third valve seat, connecting the first channel 642 to the return channel 643. The third through hole 623 engages with the fourth valve seat 654, and the fourth through hole 624 engages with the first valve seat 651, connecting the second channel 644 to the input channel 641.

[0135] The first channel 642 can be connected to the closing chamber of the blowout preventer, and the second channel 644 can be connected to the opening chamber of the blowout preventer. Hydraulic oil can enter the second channel 644 from the input channel 641, and then enter the opening chamber, increasing the volume of the opening chamber. Hydraulic oil in the closing chamber can enter the first channel 642 and return to the hydraulic oil tank 110 via the return channel 643, decreasing the volume of the closing chamber. This causes the piston to move towards the closing chamber, opening the blowout preventer.

[0136] It is understood that the three-position four-way rotary valve 130 is detachably mounted on the valve core 610 via the valve panel 620; the valve panel 620 is provided with a first through hole 621 communicating with the first flow channel 611 of the valve core 610, a second through hole 622 communicating with the second flow channel 612, a third through hole 623 communicating with the third flow channel 613, and a fourth through hole 624 communicating with the fourth flow channel 614; a first valve seat 651 communicating with the input channel 641 of the valve cover 640, a second valve seat 652 communicating with the first channel 642, a third valve seat communicating with the return channel 643, and a fourth valve seat 654 communicating with the second channel 644; when the rotating shaft 660 rotates in the positive direction, the first through hole 621 engages with the first valve seat 651, the second through hole 622 engages with the second valve seat 652, thereby connecting the input channel 641 to the first channel 642; the third through hole 623 engages with the third valve seat, and the fourth through hole 624 engages with the third valve seat. The four-way hole 624 engages with the fourth valve seat 654, thereby connecting the second channel 644 to the return channel 643. In this first state, the valve can close the blowout preventer. When the rotating shaft 660 rotates in the opposite direction, the first through hole 621 engages with the second valve seat 652, and the second through hole 622 engages with the third valve seat, connecting the first channel 642 to the return channel 643. The third through hole 623 engages with the fourth valve seat 654, and the fourth through hole 624 engages with the first valve seat 651, connecting the second channel 644 to the input channel 641. In this second state, the valve can open the blowout preventer. Because the valve panel 620 is detachably mounted on the valve core 610, and the valve panel 620 contacts each valve seat 650, regular replacement of the valve panel 620 is sufficient for maintenance. This eliminates the need for frequent replacement of the entire three-position four-way rotary valve 130, thus extending its lifespan and reducing operating costs.

[0137] 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.

[0138] 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.

[0139] 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 blowout preventer control system, characterized in that, include: The blowout preventer control unit has an oil tank, an input pipe, and multiple three-position four-way rotary valves. The oil tank is equipped with an oil return port and an oil outlet. Each of the three-position four-way rotary valves is provided with an inlet, a first valve port, a return port, and a second valve port, and each of the three-position four-way rotary valves is located in the oil tank. The input pipe is connected to the oil outlet, each input port is connected to the input pipe, and each return port is connected to the return port; The driller's platform is electrically connected to the blowout preventer control unit. Multiple emergency control boxes are electrically connected to the blowout preventer control unit, and each emergency control box is distributed in multiple areas; An energy storage assembly is connected to the fuel tank.

2. The blowout preventer control system as described in claim 1, characterized in that, Each of the aforementioned emergency control boxes includes a control box body and multiple mounting lugs. The control box body is rectangular, and each fixing lug is evenly distributed on the control box body.

3. The blowout preventer control system as described in claim 2, characterized in that, The accumulator assembly includes a fixed support, a first frame, a second frame, multiple accumulators, and an energy storage manifold. The first frame is mounted on the fixed support. The second frame is hinged to the fixed support, so that a variable angle is formed between the first frame and the second frame. The plurality of energy storage devices are evenly distributed on the first frame and the second frame. The energy storage manifold connects to each of the energy storage devices.

4. The blowout preventer control system as described in claim 3, characterized in that, The energy storage manifold includes a first support pipe and a second support pipe; the fixed support includes a first fixed plate and a second fixed plate; and the plurality of energy storage devices include a first energy storage device group and a second energy storage device group. The first end of the first support pipe is fixedly connected to the first fixing plate, the second end of the first support pipe is fixedly connected to the second fixing plate, the first support pipe is connected to the first accumulator group, and the first frame is disposed on the first support pipe. The first end of the second support tube is hinged to the first fixed plate, the second end of the second support tube is hinged to the second fixed plate, the second support tube is connected to the second energy storage group, and the second frame is disposed on the second support tube.

5. The blowout preventer control system as described in claim 4, characterized in that, The first frame includes vertical support A, vertical support B, horizontal support A, and support groove A. The vertical support A and the vertical support B are symmetrically and parallelly arranged. The vertical support A is fixed to the first end of the first support tube, and the vertical support B is fixed to the second end of the first support tube. The first end of the horizontal support A is fixed to the vertical support A, and the second end of the horizontal support A is fixed to the vertical support B. The support groove A is provided on the vertical support A and the vertical support B, forming the support space A. The first energy storage unit is located in the support space of A.

6. The blowout preventer control system as described in claim 5, characterized in that, It also includes a flow divider control console, which comprises a flow divider solenoid valve box and multiple flow divider rotary valves. The blowout preventer control host is equipped with a PLC master station box. Each of the aforementioned diverter valves is connected to the oil tank. The diversion solenoid valve box is electrically connected to the PLC master station box, and the diversion solenoid valve box is electrically connected to each of the diversion rotary valves.

7. The blowout preventer control system as described in claim 6, characterized in that, The splitter control console also includes a split oil supply pipe and a split oil return pipe. Each of the aforementioned diverter valves has an oil inlet, a first diverter port, a return port, and a second diverter port. Each of the aforementioned diverter valves is uniformly distributed in a linear array. Each oil inlet is connected to the branch oil supply pipe, and each oil return inlet is connected to the branch return oil pipe. Both the diversion oil supply pipe and the diversion oil return pipe are connected to the oil tank.

8. The blowout preventer control system as described in claim 7, characterized in that, The driller's platform includes a driller's platform body, a driller's platform support, and multiple digital displays. The driller's platform body is fixed to the driller's platform bracket, and the digital display is located on the driller's platform body. The driller's platform is electrically connected to the PLC master station box.

9. The blowout preventer control system as described in claim 8, characterized in that, It also includes an auxiliary driller's platform, which is electrically connected to the PLC master station box. The auxiliary driller's platform is exactly the same as the driller's platform.

10. The blowout preventer control system as described in claim 9, characterized in that, The three-position four-way rotary valve includes a valve core, valve panel, valve body, valve cover, valve seat, and rotating shaft; The valve core is provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, wherein the first flow channel and the second flow channel are interconnected, and the third flow channel and the fourth flow channel are interconnected. The valve panel is detachably disposed on the valve core. The valve panel is provided with a first through hole communicating with the first flow channel, a second through hole communicating with the second flow channel, a third through hole communicating with the third flow channel, and a fourth through hole communicating with the fourth flow channel. The valve body is provided with a receiving cavity, and the valve core and the valve panel are disposed in the receiving cavity; The valve cover is provided with an input channel, a first channel, a return channel, and a second channel; The valve seat includes a first valve seat, a second valve seat, a third valve seat, and a fourth valve seat. The first valve seat is connected to the input channel, the second valve seat is connected to the first channel, the third valve seat is connected to the return channel, and the fourth valve seat is connected to the second channel. The rotating shaft is connected to the valve core and drives the valve core to rotate; In the first state, the rotating shaft rotates in the positive direction, the first through hole engages with the first valve seat, the second through hole engages with the second valve seat, so that the input channel is connected to the first channel; the third through hole engages with the third valve seat, and the fourth through hole engages with the fourth valve seat, so that the second channel is connected to the return channel; In the second state, the rotating shaft rotates in the opposite direction, the first through hole engages with the second valve seat, the second through hole engages with the third valve seat, so that the first channel connects to the return channel; the third through hole engages with the fourth valve seat, the fourth through hole engages with the first valve seat, and the second channel connects to the input channel.

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