Intermittent pumping control device for beam-pumping unit

Abstract

The intermittent pumping control device comprises a cabinet body, the opposite sides of the cabinet body are movably connected with a front door and a rear door respectively, a man-machine interaction interface used for manual operation and obtaining information of the control device is arranged at the position, opposite to the front door, in the cabinet body, and an electrical system is arranged at the position, opposite to the rear door, in the cabinet body; the top of the cabinet body is fixedly connected with a waterproof eave, the waterproof eave is provided with an alarm lamp and a loudspeaker, the alarm lamp and the loudspeaker are connected with an electrical system circuit, and the bottom of the cabinet body is fixedly connected with a support. The pumping unit automatic starting and stopping device replaces manual starting and stopping of an oil well, automatic intermittent production of the pumping unit is achieved, and meanwhile the safety of the pumping unit in the automatic starting and stopping process is guaranteed through the man-machine interaction and alarming device.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oilfield digitization technical field, concretely relates to an interval pumping control device for beam pumping unit. BACKGROUND

[0002] With the continuous development of oil production technology, technical research and application have been carried out in the optimization design and digital application of mechanical oil production (referred to as mechanical production) system at home and abroad. The construction of digitization has played a key role in improving the production efficiency of oil wells and the efficiency of oilfield production management.

[0003] With the inferiorization of resource endowment, the situation of low production and low efficiency of oil wells is serious, there are more than 300,000 mechanical production wells with daily liquid production less than 5 tons in China, accounting for nearly 50% of the total number of wells, the number is huge, the average system efficiency is less than half of the average level, the benefit production is facing great challenges, and the digital transformation has become the only way for the sustainable development of low-yield and low-efficiency oil wells. The oil well interval pumping technology is to stop the well periodically, and then start production after the liquid level is restored to a certain position, which can greatly reduce the production energy consumption while ensuring the yield. In the past, most of the interval pumping wells used manual interval opening method, and the oil production workers often had to cross mountains and ridges to start and stop the pumping unit, resulting in large workload and low efficiency of the oil production workers, and high cost. The manual interval pumping system is usually based on personal subjective experience, and the interval opening period is relatively fixed, which leads to extensive management, large liquid level fluctuation, and affects the play of stable production and energy saving and consumption reduction effect.

[0004] Therefore, we propose an interval pumping control device for beam pumping unit to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing an interval pumping control device for beam pumping unit, replacing manual oil well starting and stopping, realizing automatic intermittent production of the pumping unit, and ensuring the safety of the automatic starting and stopping process of the pumping unit through man-machine interaction and alarm device.

[0006] The utility model adopts the technical scheme, an interval pumping production control device for beam pumping unit, including the cabinet body, the opposite sides of the cabinet body are movably connected with front door and back door respectively, the man-machine interaction interface for manual operation and obtaining control device information is arranged at the position opposite the front door in the cabinet body, and the electrical system is arranged at the position opposite the back door in the cabinet body.

[0007] The waterproof eave is fixedly connected to the top of the cabinet body, the alarm lamp and the loudspeaker are installed on the waterproof eave, the alarm lamp and the loudspeaker are connected with the electrical system circuit, and the bracket is further fixedly connected to the bottom of the cabinet body.

[0008] The utility model is characterized in that,

[0009] The electrical system comprises a fixed base plate fixedly connected with the cabinet body, a terminal block fixed on the fixed base plate, a port of the terminal block connected with a power supply through a cable, and another port of the terminal block connected with a miniature circuit breaker and a switching power supply through a line in sequence.

[0010] The electrical system further comprises a three-phase electric parameter acquisition unit and a relay, the three-phase electric parameter acquisition unit is connected with a current transformer through a signal cable via the terminal block, the three-phase electric parameter acquisition unit is further connected with an interval control device through a signal cable, and an alarm lamp and a loudspeaker are connected with the interval control device in a line.

[0011] The fixed base plate is further fixed with a five-hole socket for supplying power to a debugging PC computer.

[0012] The electrical system further comprises a grounding block fixedly connected with the fixed base plate, and the grounding block is grounded through a grounding cable.

[0013] The current transformer comprises a displacement sensor and a load sensor.

[0014] The interval control device is of a WLIIC-C type.

[0015] The man-machine interaction interface comprises a man-machine interaction panel fixedly connected with the cabinet body, and a touch screen installed on the surface of the man-machine interaction panel, the touch screen being connected with the interval control device through a signal cable.

[0016] The man-machine interaction panel is further provided with a control cabinet operation indicator lamp and an interval execution indicator lamp for displaying a current operation state.

[0017] A state query button for inquiring about a current production mode and state;

[0018] A mode switching button for switching the production mode;

[0019] A start button and a stop button for controlling the start and stop of the pumping unit;

[0020] The control cabinet operation indicator lamp, the interval execution indicator lamp, the state query button and the mode switching button are electrically connected with the interval control device, and the start button and the stop button are electrically connected with the relay.

[0021] The utility model discloses the beneficial effects are,

[0022] (1) The utility model is used for the intermittent production control device of beam pumping unit, which is installed beside the oil pumping unit at the wellhead, obtains 220V AC power supply from the electrical cabinet area of the pumping unit, then provides 24V DC power for the whole control device through the surge protector, miniature circuit breaker and switching power supply, monitors and analyzes the power supply state and production state of the pumping unit through the intermittent controller, generates the start and stop instructions of the oil well, connects the pumping unit start and stop controller through the wiring terminal row, realizes the start and stop control of the pumping unit, thereby realizes the goal of automatic intermittent production of the pumping unit, replaces manual start and stop of the oil well, ensures the safety of the automatic start and stop process of the pumping unit through man-machine interaction and alarm device, and realizes unattended automatic intermittent production of low-yield oil wells.

[0023] (2) The utility model is used for the intermittent production control device of beam pumping unit, which connects the load and displacement sensor of the pumping unit through the wiring terminal row and inputs the intermittent controller, realizes real-time production state monitoring of the pumping unit, connects the three-phase electric cabinet of the pumping unit through the wiring terminal row and inputs the three-phase electric parameter acquisition unit, and realizes power supply monitoring during the operation process of the pumping unit.

[0024] (3) The utility model is used for the intermittent production control device of beam pumping unit, which can realize real-time monitoring of the current production state and operation state of the pumping unit through the man-machine interface, realizes mode switching of the continuous production and intermittent production of the pumping unit through the mode switching knob, and provides sound and light alarm through the loudspeaker for the start and stop alarm of the pumping unit when the pumping unit normally operates for 1 minute before automatic start or stop, thereby ensures the safety of the on-site operation. DRAWINGS

[0025] Figure 1 is the structure schematic view of the intermittent control device of the utility model for beam pumping unit,

[0026] Figure 2 is the structure schematic view of the electrical system in the intermittent control device of the utility model for beam pumping unit,

[0027] Figure 3 is the structure schematic view of the man-machine interface in the intermittent control device of the utility model for beam pumping unit,

[0028] Figure 4 is the schematic view of the intermittent control device of the utility model for beam pumping unit during implementation.

[0029] In the diagram, 1. Waterproof eaves, 2. Front door, 3. Rear door, 4. Human-machine interface panel, 5. Bracket, 6. Speaker, 7. Cabinet, 8. Alarm light, 9. Touch screen, 10. Control cabinet operation indicator light, 11. Start button, 12. Intermittent pumping execution indicator light, 13. Status query button, 14. Stop button, 15. Mode switching button, 16. Fixed base plate, 17. Three-phase electrical parameter acquisition unit, 18. Intermittent pumping controller, 19. Switching power supply, 20. Miniature circuit breaker, 21. Five-hole socket, 22. Relay, 23. Terminal block, 24. Grounding bar, 25. Host computer, 26. Displacement sensor, 27. Pumping unit electrical cabinet, 28. Beam pumping unit, 29. Load sensor. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] This utility model is used for intermittent pumping control devices in beam pumping units, such as... Figure 1 As shown, the device includes a cabinet 7, with a front door 2 and a rear door 3 movably connected to opposite sides of the cabinet 7. A human-machine interface for manual operation and obtaining control device information is provided inside the cabinet 7 relative to the front door 2. Through the human-machine interface, the current production and operation status of the pumping unit can be monitored in real time. An electrical system is provided inside the cabinet 7 relative to the rear door 3.

[0033] A waterproof awning 1 is fixedly connected to the top of the cabinet 7. An alarm light 8 and a horn 6 are installed on the waterproof awning 1. The alarm light 8 and the horn 6 are connected to the electrical system wiring. When switching production modes or starting and stopping the pumping unit, the alarm light 8 can sound an alarm, and the horn 6 can broadcast information. A bracket 5 is also fixedly connected to the bottom of the cabinet 7. The bracket 5 is used to support the control device.

[0034] The waterproof eaves 1 and cabinet 7 enable the overall control device to operate outdoors, eliminating concerns about the risk of water entering the control device due to rain and causing damage.

[0035] Example 2

[0036] Based on Example 1, such as Figure 2As shown, the electrical system of the present embodiment for the intermittent control device of the beam pumping unit comprises a fixed base plate 16 fixedly connected with the cabinet 7, a terminal block 23 fixed on the fixed base plate 16, and the terminal block 23 is connected with the power supply through a cable at one end and connected with a miniature circuit breaker 20 and a switching power supply 19 through a line at the other end.

[0037] Further, the electrical system further comprises a grounding block 24 fixedly connected with the fixed base plate 16, and the grounding block 24 is grounded through a grounding cable.

[0038] The miniature circuit breaker 20, the switching power supply 19, the three-phase electric parameter acquisition unit 17, the relay 22, and the intermittent controller 18 are all fixedly connected with the fixed base plate 16.

[0039] Further, the fixed base plate 16 is further fixed with a five-hole socket 21 for supplying power to a debugging PC computer.

[0040] Further, the electrical system further comprises a grounding block 24 fixedly connected with the fixed base plate 16, and the grounding block 24 is grounded through a grounding cable.

[0041] That is, the power supply cable obtains 220V alternating current power supply through the terminal block 23, and after protection by the miniature circuit breaker 20, the switching power supply 19 is connected to provide 24V direct current power supply for the entire control device; the three-phase power of the pumping unit power supply cabinet is connected to the three-phase electric parameter acquisition unit 17 through the terminal block 23 by a signal cable through an external power supply current transformer, and the voltage, current, power, and power information of the real-time three-phase power supply of the pumping unit are collected and connected to the intermittent controller 18 through a signal cable; the relay 22 is connected to the intermittent controller 18 through a signal cable, and connected to the start-stop control line of the pumping unit through the terminal block 23 and a control cable.

[0042] Embodiment 3

[0043] On the basis of embodiment 2, as Figure 3As shown, the man-machine interaction interface of the embodiment is used in the intermittent pumping control device of the beam pumping unit, and the man-machine interaction panel 4 is fixedly connected with the cabinet body 7, the touch screen 9 is installed on the surface of the man-machine interaction panel 4, and the touch screen 9 is connected with the intermittent controller 18 through a signal cable;

[0044] The control cabinet operation indicating lamp 10 and the intermittent execution indicating lamp 12 for displaying the current operation state are further arranged on the man-machine interaction panel 4;

[0045] The state query button 13 for inquiring the current production mode and state;

[0046] The mode switching button 15 for switching the production mode;

[0047] The start button 11 and the stop button 14 for controlling the start and stop of the pumping unit;

[0048] Specifically, the touch screen 9 is connected with the intermittent controller 18 through a signal cable, realizes real-time production state display and parameter configuration; the control cabinet operation indicating lamp 10 and the intermittent execution indicating lamp 12 are electrically connected with the intermittent controller 18, and display the current system operation state; the state query button 13 is electrically connected with the intermittent controller 18, and after being pressed, inquires the current system production mode and state; the intermittent controller 18 is electrically connected with the loudspeaker 6 and the alarm lamp 8, and the inquired state is broadcasted through voice; the mode switching button 15 is electrically connected with the intermittent controller 18, and after being pressed, the system production mode can be switched, and voice broadcast is used for reminding; the start button 11 and the stop button 14 are electrically connected with the relay 22, and after being pressed, the pumping unit can be locally controlled to start and stop; meanwhile, based on the electrical connection between the relay 22 and the intermittent controller 18, voice alarm and light alarm are carried out through the loudspeaker 6 and the alarm lamp 8.

[0049] As Figure 4 shown, the utility model is used for the intermittent pumping control device of the beam pumping unit in use, installs in the beam pumping unit 28 side, displacement sensor 26 installs on the top beam of beam pumping unit 28, load sensor 29 installs on the beam pumping unit 28 donkey head, both through special cable access the intermittent pumping control device of the utility model, realizes the real-time production state acquisition and monitoring of pumping unit;At the same time, the electrical cabinet 27 of pumping unit is connected with 380V power supply, provides power for the three-phase alternating current asynchronous motor of beam pumping unit 28, and is connected with the intermittent pumping control device of the utility model through power cable and control cable, realizes the power supply of intermittent pumping control device, three-phase electric parameter monitoring in the working process of pumping unit and pumping unit start-stop control;The intermittent pumping control device of the utility model is connected with host computer 25 through wired network, realizes remote monitoring of remote oil well production.

[0050] The interval pumping control device can define the intermittent production cycle of the pumping unit, controls the starting and stopping of the pumping unit according to the defined starting and stopping cycle, realizes the intermittent production of the oil well, reduces the opening time of the pumping unit, ensures the oil well yield while greatly reducing the power consumption of the pumping unit, improves the system efficiency, and reduces the production cost. Meanwhile, in the daily operation and maintenance management process, the operation and maintenance personnel can carry out on-site operation or debugging by opening the front door 2, and the electrical system is physically isolated, so as to ensure the safety of personnel operation and protect the internal circuit from being changed and damaged.

Claims

1. A control device for a beam pumping unit, characterized by, The utility model relates to a kind of electric control cabinet, including cabinet (7), the cabinet (7) is movably connected with front door (2) and rear door (3) respectively on opposite side, the inside of the cabinet (7) is provided with the man-machine interface for human operation and obtaining control device information relative to front door (2) position, the inside of the cabinet (7) is provided with electrical system relative to rear door (3) position; The top of the cabinet (7) is fixedly connected with a waterproof eave (1), the waterproof eave (1) is installed with an alarm lamp (8) and a loudspeaker (6), the alarm lamp (8) and the loudspeaker (6) are connected with the circuit of the electrical system, and the bottom of the cabinet (7) is further fixedly connected with a support (5).

2. The group control apparatus for a beam pump unit according to claim 1, characterized by The electrical system includes a fixed bottom plate (16), the fixed bottom plate (16) is fixedly connected with the cabinet (7), the fixed bottom plate (16) is fixedly connected with a terminal block (23), one end of the terminal block (23) is connected with a power supply through a cable, and the other end of the terminal block (23) is sequentially connected with a miniature circuit breaker (20) and a switching power supply (19) through a circuit. It further includes a three-phase electric parameter acquisition unit (17) and a relay (22), the three-phase electric parameter acquisition unit (17) is connected with a current transformer through a signal cable via the terminal block (23), the three-phase electric parameter acquisition unit (17) is further connected with an interval controller (18) through a signal cable, and the alarm lamp (8) and the loudspeaker (6) are connected with the interval controller (18) in circuit; the relay (22) is sequentially connected with the interval controller (18) and the terminal block (23) through a signal cable, and is connected with the start-stop control line of the pumping unit through a control cable after the terminal block (23).

3. The group control for a beam pump unit of claim 2, wherein, The fixed bottom plate (16) is further fixedly connected with a five-hole socket (21) for supplying power to a debugging PC computer.

4. The group control apparatus for a beam pump unit according to claim 2, characterized by The electrical system further includes a grounding bar (24) fixedly connected to the fixed bottom plate (16), and the grounding bar (24) is grounded through a grounding cable.

5. The group control for a beam pump unit of claim 2 wherein, The current transformer includes a displacement sensor (26) and a load sensor (29).

6. The group control for a beam pump as defined in claim 2 wherein, The interval controller (18) is of the model WLIIC-C.

7. The group control device for a beam pump unit according to any one of claims 2 to 6, characterized by The man-machine interface includes a man-machine interface panel (4), the man-machine interface panel (4) is fixedly connected with the cabinet (7), a touch screen (9) is installed on the surface of the man-machine interface panel (4), and the touch screen (9) is connected with the interval controller (18) through a signal cable; The man-machine interface panel (4) is further provided with a control cabinet running indicator light (10) and an interval execution indicator light (12) for displaying the current running state; A state query button (13) for querying the current production mode and state; A mode switching button (15) for switching the production mode; A start button (11) and a stop button (14) for controlling the start and stop of the pumping unit; The control cabinet running indicator light (10), the interval execution indicator light (12), the state query button (13), and the mode switching button (15) are electrically connected with the interval controller (18), and the start button (11) and the stop button (14) are electrically connected with the relay (22).

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