Dynamic control device for intelligent hydraulic station well of oil field

Abstract

A dynamic control device for an intelligent hydraulic station well of an oil field belongs to the control technology of the hydraulic station well of the oil field, solves the problems in the prior art, and comprises a hydraulic oil pump set A, a hydraulic oil pump set B, a switching device, an oil-water separator, a hydraulic oil tank, a constant-temperature prying box, a plurality of monitors and a metering room, a hydraulic oil tank, an intelligent control box, a hydraulic oil pump set A and a hydraulic oil pump set B are respectively arranged in the constant-temperature prying box; the hydraulic oil pump set A and the hydraulic oil pump set B are connected through a switching device, and the two pump sets are respectively connected with a hydraulic oil tank; monitors are arranged at different positions of the metering room, meanwhile, dry powder extinguishers are installed close to the monitors, and a dry powder extinguisher nozzle is installed at one end of each dry powder extinguisher; the oil-water separator is installed between the hydraulic oil pump A pump set main line manifold main valve and the hydraulic oil pump B pump set main line manifold main valve.

Description

Technical Field

[0001] The utility model relates to an oilfield hydraulic station well control technology, in particular to an oilfield intelligent hydraulic station well dynamic control device. Background Art

[0002] The current work of oilfield production stations is all manual valves. At present, there are manual, electric, and pneumatic methods on the market. Although these methods can solve some problems, they cannot prevent the risk of safe operation after oil and gas leakage. The process after leakage in the metering room is difficult to safely close and open the valve; the oil production station is all manually guarded, with four people at each station, and four people take turns on duty. Because the oil field is in the wild and the Gobi Desert, the temperature in the northwest and northeast is between minus 40 degrees and 60 degrees high, which directly affects personal safety, long distances, and car transportation. After the oil field has been in operation for a few years, the equipment is aging, and once the oil and gas leak, it cannot be handled on site in time; or timely rescue the field duty personnel. Waste resources, high production costs, and potential safety hazards. There are many people, and some personnel improperly handle it, causing incalculable losses. Once it leaks, the operator is prone to poisoning, and static electricity will cause explosions. After searching, CN108223345A discloses an intelligent hydraulic system for oil wells, which is mainly an unattended intelligent control system for oil field production stations and oil and gas joint stations in oil production plants, including a main controller, an intelligent background communication and field processing system, and a data acquisition module arranged on the main controller and connected to the main controller. The data acquisition module is respectively connected to the parts of the pipeline process that require manual operation and the control of the wellhead inlet valve. The main controller is provided with a network module connected to the main controller, and the network module is connected to the main control center of the oil production station. Mobile phones and computer platforms can simultaneously control multiple backgrounds to directly supervise and operate the operations of the station process. The main control center of the oil production station is respectively connected with the metering room controller and the operation mode. The main controller is connected to the drive device and is also connected to all the processes and valves in the oil production station. The intelligent control system in the oil production station can accurately realize the automatic oil measurement in the metering room, the switching of the process set in advance and the remote unmanned control on site. The system includes automatic real-time monitoring of gas, crude oil, smoke alarms and automatic dry powder fire extinguisher heat source automatic fire extinguishing and automatic control of the opening of doors and windows, automatic opening of explosion-proof convection exhaust fans. At the same time, the system will automatically alarm all people in the control background at the same time, and will also alarm with the linked 119. At the same time, the installation process is simpler and the performance is more stable. Patent No. 201921695905.X discloses an oilfield intelligent hydraulic station well dynamic control device and application method. The main design functions are to focus on the safe production and operation of oilfield production stations, unmanned operation, emergency treatment in emergency situations at the first time, fire protection to eliminate hidden dangers at the first time, saving production and operation costs, and creating green and low-carbon equipment. It is simultaneously applied to the hydraulic valve control of all processes inside and outside the station and the intelligent control cabinet on the equipment, including an LCD display control panel and a background monitoring host, a manual operation control system, a main oil tank of hydraulic oil, an explosion-proof motor, a hydraulic oil pump, a detection component and a safety solenoid valve inside the box, and a standby and operation monitoring module. The above patent technologies retrieved are all for the monitoring of single wells or pumping units. At present, no technology related to the dynamic control device of the well of the intelligent hydraulic production station in the oilfield has been found. Summary of the invention

[0003] The purpose of the utility model is to provide an oilfield intelligent hydraulic station well dynamic control device with automatic control performance, which solves the current technical problems. The purpose of the utility model is achieved in this way. It includes a hydraulic oil pump A pump group, a hydraulic oil pump B pump group, a switching device, an oil-water separator, a hydraulic oil tank, a constant temperature skid box, multiple monitors, and a metering room. The constant temperature skid box is respectively arranged with a hydraulic oil tank, an intelligent control box, a hydraulic oil pump A pump group, and a hydraulic oil pump B pump group; the hydraulic oil pump A pump group and the hydraulic oil pump B pump group are connected by a switching device in the middle, and the two pump groups are respectively connected to the hydraulic oil tank. Monitors are set at different positions in the metering room, and a dry powder fire extinguisher is installed close to the monitor, and a dry powder fire extinguisher nozzle is installed at one end of the dry powder fire extinguisher; the oil-water separator is installed in the middle of the main valve of the main manifold of the hydraulic oil pump A pump group and the main valve of the main manifold of the hydraulic oil pump B pump group. The hydraulic oil pump A pump group is respectively connected with hydraulic fluid delivery pipes, and the hydraulic fluid delivery pipes are respectively connected with oil and gas meters; the hydraulic oil pump B pump group is respectively connected with multiple hydraulic oil delivery pipes, and the multiple hydraulic oil delivery pipes are respectively connected with oil and gas meters; each hydraulic fluid delivery pipe is sequentially connected with a single well inlet and outlet control valve, and the single well inlet and outlet control valves include a single well inlet valve and a single well outlet valve, and these single well inlet and outlet valves are connected to the trunk manifold in the middle, and the trunk manifold is equipped with a main valve.

[0004] Furthermore, in the hydraulic oil pump A pump group, a motor is installed on the hydraulic oil pump, and five groups of hydraulic fluid delivery pipes are respectively connected to the hydraulic oil pump A pump group, and the five groups of hydraulic fluid delivery pipes are respectively connected to the No. 1 single well inlet and outlet valve; No. 2 single well inlet and outlet valve; No. 3 single well inlet and outlet valve; No. 4 single well inlet and outlet valve; No. 5 single well inlet and outlet valve; the hydraulic oil pump A pump group trunk manifold main valve is connected in the middle of the above five groups of single well inlet and outlet valves. Further, in the hydraulic oil pump B pump group, a motor is installed on the hydraulic oil pump, and five groups of hydraulic oil delivery pipelines are respectively connected to the hydraulic oil pump B pump group, and the five groups of hydraulic oil delivery pipelines are respectively connected to the No. 6 single well inlet and outlet valve; No. 7 single well inlet and outlet valve; No. 8 single well inlet and outlet valve; No. 9 single well inlet and outlet valve; No. 10 single well inlet and outlet valve; the hydraulic oil pump B pump group trunk manifold main valve is connected in the middle of the above five groups of single well inlet and outlet valves. The switching device is respectively equipped with an intelligent control box, an intelligent control display screen, a manual switch, an intelligent control switch, each trunk electronic control valve, a single well inlet valve controller, and a single well outlet valve controller. On the single well inlet and outlet control valve, an external thread is arranged at the top of the lifting valve stem; the shaft sleeve of the manual lifting disk is arranged with an internal thread, and the lifting valve stem is meshed with the internal and external threads of the lifting rod female buckle of the manual lifting disk, and the lifting of the lifting valve stem can be adjusted by rotating the manual lifting disk; the outer shell flange of the lifting valve stem is located below the manual lifting disk, and the top and bottom ends of the outer shell flange are sealed by an upper sealing ring and a lower sealing ring respectively; the valve body is located below the outer shell flange, and the valve body and the outer shell flange are fixed by bolts, and a hydraulic cylinder is arranged in the valve body; the hydraulic cylinder is an oil filling chamber, and a hydraulic lifting piston disc is installed on the lifting valve stem in the oil filling chamber, and the middle of the hydraulic lifting piston disc and the hydraulic cylinder is sealed by a piston disc sealing ring, and a piston disc rising oil filling pipe is arranged below the hydraulic lifting piston disc; an oil filling pipe is arranged at the top of the hydraulic cylinder, and a hydraulic cylinder base is arranged below the hydraulic cylinder. Further, in the valve body, the gate lift chamber is located below the hydraulic cylinder; there is an oil and gas circular channel below the valve body, and there is a gate in the oil and gas circular channel; the top of the gate is connected to the bottom of the lift valve stem by a thread, and the middle of the two is sealed by a concave sealing ring; the bottom of the gate is located in the sealing groove, and the shape of the gate is fan-shaped. The application method of the utility model is that on the single well inlet and outlet control valve, since a manual lifting disk and a program-controlled hydraulic device are provided, in general, the single well inlet and outlet control valve is adjusted by a remote intelligent control hydraulic device to close or open; when the hydraulic oil pump A pump group or the hydraulic oil pump B pump group has a problem, they can be switched to each other through a switching device. When the hydraulic oil pump A pump group has a problem, the switching device switches to the single well position of the hydraulic oil pump B pump group, and the single well inlet and outlet valves of the hydraulic oil pump A pump group are closed; when the hydraulic oil pump B pump group has a problem, the switching device switches to the single well position of the hydraulic oil pump A pump group, and the single well inlet and outlet valves of the hydraulic oil pump B pump group are closed.When using remote intelligent control hydraulic device, when oil is injected into the piston disc rising oil filling pipe, the oil pressure pushes up the hydraulic lifting piston disc, the hydraulic lifting piston disc drives the lifting valve stem, the lifting valve stem drives the gate disc to lift, the oil and gas circular channel is opened, oil and gas pass through, and it works normally; when a problem occurs, when oil is injected into the oil filling pipe, the oil pressure pushes down the hydraulic lifting piston disc, the hydraulic lifting piston disc drives the lifting valve stem, the lifting valve stem drives the gate disc down to the sealing groove, the oil and gas circular channel is closed, and maintenance can be carried out. In special cases, manual operation is adopted, the operator turns the manual lifting disc to drive the lifting valve stem, the lifting valve stem drives the gate disc to lift, the oil and gas circular channel is opened, oil and gas pass through, and it works normally; when a problem occurs, the operator turns the manual lifting disc to drive the lifting valve stem, the lifting valve stem drives the gate disc down to the sealing groove, the oil and gas circular channel is closed, and maintenance can be carried out. When oil leakage, gas leakage, fire and unstable room temperature occur in the metering room, the monitor will give a real-time prompt, and the dispatcher, stationmaster, duty captain, 119 fire brigade and other levels can be alarmed for rescue in time, and the dry powder fire extinguisher and the dry powder fire extinguisher nozzle will automatically open for fire extinguishing; automatically open doors and windows and explosion-proof ventilation devices; so as to take timely measures for adjustment and rescue to ensure the normal operation of the intelligent hydraulic station well in the oil field. The significance of this utility model is: first, real-time monitoring of key equipment, automatic oil and gas measurement, to achieve safe production in the oil field under unattended conditions, and automatic alarm for leakage or fire can be realized. Since monitors and dry powder fire extinguishers are set at various key locations in the metering room, if there is a valve or pipeline leaking gas or oil or a fire occurs, the dispatcher, stationmaster, duty captain, 119 fire brigade and other levels can be alarmed for rescue in time, the dry powder fire extinguisher opens the nozzle for fire extinguishing, and automatically opens doors and windows and explosion-proof ventilation devices; second, the temperature of each pump group can be observed through the display screen, and timely adjusted according to the set requirements to ensure the normal temperature in the room; third, real-time monitoring of the host and the connection The pressure of each pump group can be observed through the display screen for timely adjustment to ensure the normal pressure of each pump group; fourth, the oil and gas measurement of any well position in the metering room of the oil production station can be arbitrarily selected; fifth, each oil well, water well, and gas well pipeline entering the station has an inlet and outlet valve, or the inlet and outlet valves of the well group, which can hydraulically push the valve gate up or down to open or close the process valve in time; sixth, due to the application of program control technology, the utility model has the functions of automatic switching, automatic temperature control, automatic exhaust, and day and night lighting; the utility model can also be used in the comprehensive supervision and control technology of valve control on large ships and fire protection in machine warehouses. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1The present invention is a structural schematic diagram of a dynamic control device for an intelligent hydraulic station well in an oil field, wherein 1 is a hydraulic oil pump A pump group 2, a liquid crystal intelligent control panel 3, electronic control valves of each trunk line 4, a single well inlet valve controller 5, a single well outlet valve controller 6, a hydraulic oil pump B pump group 7, a trunk manifold 8, a single well inlet valve 9, a single well outlet valve 10, an oil-water separator 11, a main valve of the trunk manifold of the hydraulic oil pump B pump group 12, a manual switch 13, an intelligent control switch 14, a hydraulic oil tank 15, a thermostatic skid box 16, a metering room door 17, a hydraulic fluid infusion pipe 18, an oil and gas meter 19, a main valve of the trunk manifold of the hydraulic oil pump A pump group 20, a monitor 21, a metering room 22, an intelligent control box 23, a dry powder fire extinguisher nozzle 24, and an automatic fire extinguisher.

[0006] Figure 2 It is a structural schematic diagram of the inlet and outlet valves of a single well, comprising: 25, lifting valve stem 26, manual lifting disc 27, shell flange 28, bolts 29, oil filling pipe 30, hydraulic lifting piston disc 31, concave sealing ring 32, oil and gas circular channel 33, sealing groove 34, upper sealing ring 35, lower sealing ring 36, oil filling chamber 37, hydraulic cylinder 38, piston disc sealing ring 39, gate lift chamber 40, oil filling pipe 41, gate 42, valve body 43, and hydraulic cylinder base.

[0007] Figure 3 Schematic diagram of the structure of the gate, in which 25, the lifting valve stem 31, the concave sealing ring 41, and the gate. DETAILED DESCRIPTION

[0008] Embodiment 1. The utility model includes a hydraulic oil pump A pump group 1, a hydraulic oil pump B pump group 6, a switching device, an oil-water separator 10, a hydraulic oil tank 14, a constant temperature skid box 15, multiple monitors 20, and a metering room 21. The hydraulic oil tank 14, the intelligent control box 22, the hydraulic oil pump A pump group 1, and the hydraulic oil pump B pump group 6 are respectively arranged on the constant temperature skid box 15; the hydraulic oil pump A pump group 1 and the hydraulic oil pump B pump group 6 are connected by a switching device in the middle, and the two pump groups are respectively connected to the hydraulic oil tank 14.

[0009] Embodiment 2: Monitors 20 are provided at different positions in the metering room 21, and dry powder fire extinguishers 24 are installed close to the monitors 20, and a dry powder fire extinguisher nozzle 23 is installed at one end of the dry powder fire extinguisher 24; the oil-water separator 10 is installed between the main valve 19 of the main manifold of the hydraulic oil pump A pump group and the main valve 11 of the main manifold of the hydraulic oil pump B pump group.

[0010] Embodiment 3: The hydraulic oil pump A pump group 1 is respectively connected with a hydraulic fluid delivery pipe 17, and its hydraulic fluid delivery pipe 17 is respectively connected with an oil and gas meter 18; the hydraulic oil pump B pump group 6 is respectively connected with multiple hydraulic oil delivery pipes, and its multiple hydraulic oil delivery pipes are respectively connected with an oil and gas meter; each hydraulic fluid delivery pipe 17 is sequentially connected with a single well inlet and outlet control valve, and its single well inlet and outlet control valve includes a single well inlet valve 8 and a single well outlet valve 9; these single well inlet and outlet valves are connected to a trunk manifold 7 in the middle, and a main valve is installed on the trunk manifold 7.

[0011] Embodiment 4: Further, in the hydraulic oil pump A pump group 1, a motor is installed on the hydraulic oil pump, and five groups of hydraulic fluid delivery pipes 17 are respectively connected to the hydraulic oil pump A pump group 1, and the five groups of hydraulic fluid delivery pipes 17 are respectively connected to the No. 1 single well inlet and outlet valve; No. 2 single well inlet and outlet valve; No. 3 single well inlet and outlet valve; No. 4 single well inlet and outlet valve; No. 5 single well inlet and outlet valve; the hydraulic oil pump A pump group main line manifold main valve 19 is connected in the middle of the above five groups of single well inlet and outlet valves.

[0012] Embodiment 5. Further, in the hydraulic oil pump B pump group 6, a motor is installed on the hydraulic oil pump, and five groups of hydraulic oil pipelines are respectively connected to the hydraulic oil pump B pump group 6, and the five groups of hydraulic oil pipelines are respectively connected to the No. 6 single well inlet and outlet valve; No. 7 single well inlet and outlet valve; No. 8 single well inlet and outlet valve; No. 9 single well inlet and outlet valve; No. 10 single well inlet and outlet valve; the hydraulic oil pump B pump group main line manifold main valve 11 is connected in the middle of the above five groups of single well inlet and outlet valves.

[0013] Embodiment 6: The switching device is respectively equipped with an intelligent control box, an intelligent control display screen 2, a manual switch 12, an intelligent control switch 13, each trunk electronic control valve 3, a single well inlet valve controller 4, and a single well outlet valve controller 5.

[0014] Embodiment 7: On a single well inlet and outlet control valve, an external thread is arranged at the top of the lifting valve stem 25; an internal thread is arranged at the shaft sleeve of the manual lifting disk 26, and the lifting valve stem 25 is meshed with the internal and external threads of the lifting rod female buckle of the manual lifting disk 26, and the lifting of the lifting valve stem 25 can be adjusted by rotating the manual lifting disk 26; an outer shell flange 27 of the lifting valve stem 25 is arranged below the manual lifting disk 26, and the top and bottom ends of the outer shell flange 27 are sealed by an upper sealing ring 34 and a lower sealing ring 35 respectively; a valve body 42 is arranged below the outer shell flange 27, and the ... The valve body 42 and the outer shell flange 27 are fixed by bolts 28, and a hydraulic cylinder 37 is arranged in the valve body 42; the hydraulic cylinder 37 has an oil filling chamber 36 in it, and a hydraulic lifting piston disc 30 is installed on the lifting valve stem 25 in the oil filling chamber 36, and the middle of the hydraulic lifting piston disc 30 and the hydraulic cylinder 37 is sealed by a piston disc sealing ring 38; a piston disc rising oil filling pipe 29 is arranged below the hydraulic lifting piston disc 30; an oil filling pipe 40 is arranged at the top of the hydraulic cylinder 37, and a hydraulic cylinder base 43 is arranged below the hydraulic cylinder 37. Furthermore, inside the valve body 42, the gate lift chamber 39 is located below the hydraulic cylinder 37; there is a circular oil and gas channel 32 below the valve body 42, and a gate 41 is arranged inside the circular oil and gas channel 32; the top end of the gate 41 is connected to the bottom end of the lift valve stem 25 by a thread, and the middle of the two is sealed by a concave sealing ring 31; the bottom end of the gate 41 is located in the sealing groove 33, and the shape of the gate 41 is fan-shaped in cross section.

[0015] Embodiment 8, the application method of the utility model, on the single well inlet and outlet control valve, since a manual lifting plate 26 and a program-controlled hydraulic device are provided, under normal circumstances, the single well inlet and outlet control valves are adjusted to be closed or opened by the remote intelligent control hydraulic device; when the hydraulic oil pump A pump group 1 or the hydraulic oil pump B pump group 6 has a problem, they can switch to each other through the switching device. When the hydraulic oil pump A pump group 1 has a problem, the switching device switches to the single well position of the hydraulic oil pump B pump group 6, and the single well inlet and outlet valves of the hydraulic oil pump A pump group 1 are closed; when the hydraulic oil pump B pump group 6 has a problem, the switching device switches to the single well position of the hydraulic oil pump A pump group 1, and the single well inlet and outlet valves of the hydraulic oil pump B pump group 6 are closed; When the remote intelligent control hydraulic device is used, when oil is injected into the piston disc rising oil filling pipe 29, the oil pressure pushes up the hydraulic lifting piston disc 30, the hydraulic lifting piston disc 30 drives the lifting valve stem 25, the lifting valve stem 25 drives the gate plate 41 to rise, the oil and gas circular channel 32 is opened, the oil and gas pass through, and the normal operation is performed; when a problem occurs, when oil is injected into the oil filling pipe 40, the oil pressure pushes down the hydraulic lifting piston disc 30, the hydraulic lifting piston disc 30 drives the lifting valve stem 25, the lifting valve stem 25 drives the gate plate 41 to descend into the sealing groove 33, the oil and gas circular channel 32 is closed, and maintenance can be performed. In special cases, manual operation is adopted, the operator rotates the manual lifting disc 26 to drive the lifting valve stem 25, the lifting valve stem 25 drives the gate plate 41 to rise, the oil and gas circular channel 32 is opened, the oil and gas pass through, and the normal operation is performed; when a problem occurs, the operator rotates the manual lifting disc 26 to drive the lifting valve stem 25, the lifting valve stem 25 drives the gate plate 41 to descend into the sealing groove 33, the oil and gas circular channel 32 is closed, and maintenance can be performed. When oil leakage, gas leakage, fire and unstable room temperature occur in the metering room 21, the monitor will give a real-time prompt, and the dispatcher, stationmaster, duty captain, 119 fire brigade and other levels can be alerted in time for rescue. The dry powder fire extinguisher 24 and the dry powder fire extinguisher nozzle 23 are automatically opened for fire extinguishing; the doors and windows and explosion-proof ventilation devices are automatically opened; so that timely measures can be taken for adjustment and rescue to ensure the normal operation of the intelligent hydraulic station well in the oil field. The above technical scheme only reflects the preferred technical scheme of the utility model. Some changes that may be made to some parts by technicians in this technical field reflect the principle of the utility model and belong to the protection scope of the utility model.

Claims

1. An oilfield intelligent hydraulic station well dynamic control device, comprising a hydraulic oil pump A pump group (1), a hydraulic oil pump B pump group (6), a switching device, an oil-water separator (10), a hydraulic oil tank (14), a constant temperature skid box (15), a plurality of monitors (20), and a metering room (21), wherein: The thermostatic skid box (15) is provided with a hydraulic oil tank (14), an intelligent control box (22), a hydraulic oil pump A pump group (1), and a hydraulic oil pump B pump group (6); the hydraulic oil pump A pump group (1) and the hydraulic oil pump B pump group (6) are connected by a switching device in the middle, and the two pump groups are connected to the hydraulic oil tank (14) respectively; monitors (20) are arranged at different positions in the metering room (21), and dry powder fire extinguishers (24) are installed close to the monitors (20), and a dry powder fire extinguisher nozzle (23) is installed at one end of the dry powder fire extinguisher (24); the oil-water separator (10) is installed in the middle of the main valve (19) of the main manifold of the hydraulic oil pump A pump group and the main valve (11) of the main manifold of the hydraulic oil pump B pump group.

2. The oilfield intelligent hydraulic station well dynamic control device according to claim 1 is characterized by: The hydraulic oil pump A pump group (1) is respectively connected to a hydraulic fluid delivery pipe (17), and the hydraulic fluid delivery pipe (17) is respectively connected to an oil and gas meter (18); the hydraulic oil pump B pump group (6) is respectively connected to a plurality of hydraulic fluid delivery pipes, and the plurality of hydraulic fluid delivery pipes are respectively connected to an oil and gas meter; each hydraulic fluid delivery pipe (17) is sequentially connected to a single well inlet and outlet control valve, and the single well inlet and outlet control valve comprises a single well inlet valve (8) and a single well outlet valve (9); the single well inlet and outlet valves are connected to a trunk manifold (7) in the middle, and a main valve is installed on the trunk manifold (7); further, in the hydraulic oil pump A pump group (1), a motor is installed on the hydraulic oil pump, and the hydraulic oil pump A pump group (1) is respectively connected to five groups of hydraulic fluid delivery pipes (17), and the five groups of hydraulic fluid delivery pipes (17) are respectively connected to the main manifold (7); A No. 1 single well inlet and outlet valve is connected; a No. 2 single well inlet and outlet valve; a No. 3 single well inlet and outlet valve; a No. 4 single well inlet and outlet valve; a No. 5 single well inlet and outlet valve; a main valve (19) of a main line manifold of a hydraulic oil pump A pump group is connected in the middle of the five groups of single well inlet and outlet valves; further, in the hydraulic oil pump B pump group (6), a motor is installed on the hydraulic oil pump, and five groups of hydraulic oil pipelines are respectively connected to the hydraulic oil pump B pump group (6), and the five groups of hydraulic oil pipelines are respectively connected to a No. 6 single well inlet and outlet valve; a No. 7 single well inlet and outlet valve; a No. 8 single well inlet and outlet valve; a No. 9 single well inlet and outlet valve; a No. 10 single well inlet and outlet valve; a main valve (11) of a main line manifold of a hydraulic oil pump B pump group is connected in the middle of the five groups of single well inlet and outlet valves.

3. The oilfield intelligent hydraulic station well dynamic control device according to claim 1 is characterized by: The switching device is respectively equipped with an intelligent control box, an intelligent control (2), a manual switch (12), an intelligent control switch (13), each trunk electronic control valve (3), a single well inlet valve controller (4), and a single well outlet valve controller (5).

4. The oilfield intelligent hydraulic station well dynamic control device according to claim 2 is characterized by: On a single well inlet and outlet control valve, an external thread is arranged at the top of a lifting valve stem (25); an internal thread is arranged on a shaft sleeve of a manual lifting disk (26); the lifting valve stem (25) is meshed with the internal and external threads of the lifting rod female buckle of the manual lifting disk (26); the lifting and lowering of the lifting valve stem (25) can be adjusted by rotating the manual lifting disk (26); an outer shell flange (27) of the lifting valve stem (25) is arranged below the manual lifting disk (26); the top and bottom ends of the outer shell flange (27) are sealed by an upper sealing ring (34) and a lower sealing ring (35) respectively; a valve body (42) is arranged below the outer shell flange (27); the valve body (42) and the outer shell flange (27) are fixed by bolts (28); a hydraulic oil cylinder (37) is arranged inside the valve body (42); an oil injection chamber (36) is arranged inside the hydraulic oil cylinder (37); a hydraulic lifting piston is installed on the lifting valve stem (25) in the oil injection chamber (36); The piston disc (30) has a piston disc sealing ring (38) between its hydraulic lifting piston disc (30) and the hydraulic oil cylinder (37), and a piston disc rising oil filling pipe (29) is provided below the hydraulic lifting piston disc (30); an oil filling pipe (40) is provided at the top of the hydraulic oil cylinder (37), and a hydraulic oil cylinder base (43) is provided below the hydraulic oil cylinder (37); further, in the valve body (42), a gate lift chamber (39) is located below the hydraulic oil cylinder (37); a circular oil and gas channel (32) is provided below the valve body (42), and a gate (41) is provided in the circular oil and gas channel (32); the top end of the gate (41) is connected to the bottom end of the lifting valve stem (25) by a thread, and the middle of the two is sealed by a concave sealing ring (31); the bottom end of the gate (41) is located in the sealing groove (33), and the shape of the gate (41) is fan-shaped in cross section.

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