CN217632392U - Intelligent water injection monitoring system for oil field - Google Patents
Intelligent water injection monitoring system for oil field Download PDFInfo
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- CN217632392U CN217632392U CN202221688446.4U CN202221688446U CN217632392U CN 217632392 U CN217632392 U CN 217632392U CN 202221688446 U CN202221688446 U CN 202221688446U CN 217632392 U CN217632392 U CN 217632392U
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Abstract
The utility model belongs to an oil field production intelligent monitoring system, and discloses an oil field intelligent water injection monitoring system, which comprises a power supply system, a PLC system, a frequency conversion system, field equipment and the like, wherein the PLC system is connected with the frequency conversion system through an RS485 shielding twisted pair, the PLC system is connected with an operator station through an Ethernet interface, the PLC system is connected with a control panel through an I/O port, and the PLC system is connected with the field equipment through a D/A port; the frequency conversion system receives a start-stop command and a frequency converter speed given signal sent by the PLC system and controls the working state of the water injection pump; the field device comprises an inlet and outlet pressure sensor, an inlet and outlet temperature transmitter and a storage tank liquid level transmitter. The utility model discloses a current water injection pump has configured frequency conversion system, can realize controlling the water injection pump discharge capacity, and this frequency conversion system possesses the control function of a cabinet two pumps, simultaneously, has still designed perfect control panel and the operator and has stood the interactive problem of having solved the system.
Description
Technical Field
The utility model belongs to the technical field of the oil electronic monitoring equipment, especially, relate to an oil field intelligence water injection monitored control system.
Background
The water injection to the oil layer through the water injection well is an important development measure which is widely adopted for ensuring the pressure of the oil layer and improving the oil extraction speed and the recovery ratio of the oil reservoir. In the oil field water injection project, a water injection pump is a source device which meets the requirements of oil field water injection and formation pressure, in order to meet the requirements of oil field water injection in a long period, the capacity selection of the water injection pump is generally larger in design, and meanwhile, in actual production, daily water injection quantity is always a parameter with larger fluctuation. Especially in a high-pressure water injection system, the phenomenon that a trolley is pulled by a large horse is common, a large pressure difference exists between the pumping pressure of a water injection pump and the dry pressure of a water injection pipeline, and the water injection pressure of a water injection pipe network is ensured by controlling an outlet valve, so that a large amount of electric energy is consumed in vain, and the operation of the pump is also very unfavorable due to the high pumping pressure. In order to adapt to the change of water injection quantity and realize reasonable water injection, the operation mode of the water injection pump needs to be continuously adjusted.
Under the condition of no speed regulation measure, the flow can be controlled only by opening the number of pumps or manually adjusting valves, and the energy consumption of a water injection system is increased inevitably. The water injection volume changes a lot day and night, the former equipment can only be operated at a constant speed, so the water injection volume can only be adjusted by the aperture of the regulating valve, the resistance of the pipe network is artificially changed, the pipe network loss is increased, a considerable part of energy is wasted on the valve, the unit consumption of water injection is high, the economic operation cannot be realized, the workload of workers is increased, the untimely regulation can also cause the pipe network pressure to be too high or too low, the flow is too large or too small, and the safe operation of the production process and the equipment is influenced.
How to design a mature oil field intelligent water injection monitoring system for current water injection pump applied frequency conversion system, realization control water injection pump discharge capacity, solve above-mentioned technical problem and become the technological problem in this field.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides an oil field intelligence water injection monitored control system, this system have configured frequency conversion system for current water injection pump, can realize controlling the water injection pump discharge capacity, and this frequency conversion system possesses the control function of a cabinet two pumps, and simultaneously, this scheme has still designed perfect control panel and operator's station and has solved the mutual problem of system.
The utility model discloses an above-mentioned problem is solved to following technical means:
the utility model provides an oil field intelligence water injection monitored control system, includes power supply system, PLC system, frequency conversion system, operator station, control panel and field device, wherein: the power supply system is used for supplying power to the system; the PLC system is used for data storage, operation and analysis, the PLC system is connected with the frequency conversion system through an RS485 shielding twisted pair, the PLC system is connected with an operator station through an Ethernet interface, the PLC system is connected with the control panel through an I/O port, and the PLC system is connected with field equipment through a D/A port; the frequency conversion system receives a start-stop command and a frequency converter speed given signal sent by the PLC system and controls the working state of the water injection pump; the operator station is an industrial personal computer; the control panel consists of a plurality of selection switches, buttons and indicator lamps, the selection switches and the buttons are used for receiving operation signals, and the indicator lamps are used for displaying the working state of the system; the field device comprises an inlet and outlet pressure sensor, an inlet and outlet temperature transmitter and a storage tank liquid level transmitter.
Preferably, the power supply system includes a main power supply circuit, a PLC power supply circuit, and a switching power supply circuit, wherein: the main power supply circuit comprises a molded case circuit breaker, a frequency converter, a first alternating current contactor and a second alternating current contactor, three-phase power of a main circuit enters the frequency converter after passing through the molded case circuit breaker, and then enters the first alternating current contactor and the second alternating current contactor in parallel after passing through the frequency converter, the first alternating current contactor is used for being communicated with an external first water injection pump, and the second alternating current contactor is used for being communicated with an external second water injection pump; the PLC power supply circuit comprises a miniature circuit breaker, and the three-phase power of the main circuit is connected to a power supply wiring live wire terminal and a zero line terminal of the PLC system through the miniature circuit breaker; the switching power supply circuit comprises a miniature circuit breaker and a switching power supply, wherein three-phase power of a main circuit enters the switching power supply through the miniature circuit breaker, and the switching power supply converts AC220V into DC24V.
Preferably, the PLC system employs a SMART200PLC type controller.
Preferably, the frequency conversion system adopts an ACS580 type frequency converter, and the A and B terminals of the ACS580 type frequency converter are respectively connected with a No. 5 pin and a No. 8 pin of a DB9 port of the PLC system.
Preferably, the operator station adopts an IPC-610L type industrial control machine.
Preferably, the control panel comprises an on-site/computer selection button, an emergency stop button, a fault reset button, a start button, a stop button, a double-pump set knob, a variable frequency operation indicator lamp, a variable frequency fault indicator lamp, a first water injection pump operation indicator lamp and a second water injection pump operation indicator lamp, wherein: the local/computer selection button is a double-position button and comprises two groups of contacts, wherein one end of one group of contacts is connected with an I0.0 terminal of the SMART200PLC, and the other end of the contacts is connected with a positive electrode output end 24V of the switching power supply circuit; one end of the other group of contacts of the local/computer selection button is connected with an I0.1 terminal of the SMART200 type PLC, and the other end is connected with a positive electrode output end 24V of the switching power supply circuit; the emergency stop button is a reset button, one end of the emergency stop button is connected with an I0.2 terminal of the SMART200 type PLC, and the other end of the emergency stop button is connected with a positive electrode output end 24V of the switching power supply circuit; the fault reset button is a reset button, one end of the fault reset button is connected with an I0.3 terminal of the SMART200 type PLC, and the other end of the fault reset button is connected with a positive electrode output end 24V of the switching power supply circuit; the starting button is a reset button, one end of the starting button is connected with an I0.4 terminal of the SMART200 type PLC, and the other end of the starting button is connected with a positive electrode output end 24V of the switching power supply circuit; the stop button is a reset button, one end of the stop button is connected with an I0.5 terminal of the SMART200 type PLC, and the other end of the stop button is connected with a positive electrode output end 24V of the switching power supply circuit; the double-pump setting knob is a selection switch, one end of the double-pump setting knob is connected with an I0.6 terminal of the SMART200PLC, and the other end of the double-pump setting knob is connected with a positive electrode output end 24V of the switching power supply circuit; one end of the frequency conversion operation indicating lamp is connected with an I0.7 terminal of the SMART200 type PLC, and the other end of the frequency conversion operation indicating lamp is connected with a positive electrode output end 24V of the switching power supply circuit; one end of the frequency conversion fault indicator lamp is connected with an I0.8 terminal of the SMART200 type PLC, and the other end of the frequency conversion fault indicator lamp is connected with a positive electrode output end 24V of the switching power supply circuit; one end of the first water injection pump operation indicating lamp is connected with an I0.9 terminal of the SMART200PLC, and the other end of the first water injection pump operation indicating lamp is connected with a positive electrode output end 24V of the switching power supply circuit; one end of the second water injection pump operation indicating lamp is connected with an I0.10 terminal of the SMART200 type PLC, and the other end of the second water injection pump operation indicating lamp is connected with a positive electrode output end 24V of the switching power supply circuit.
The utility model discloses an oil field intelligence water injection monitored control system has following beneficial effect:
1) The utility model discloses a main supply circuit draws forth frequency conversion return circuit, alternating current control return circuit and the three return circuit of direct current return circuit by 380V three-phase alternating current power supply, and circuit structure is simple, reasonable in design, realization convenience and with low costs.
2) The utility model discloses a control circuit adopts the PLC module as the controller, connects converter, operator station, site sensor and control panel, and circuit structure is simple, and reasonable in design realizes conveniently and with low costs.
3) The utility model discloses make the machine pump operation safer, to the oil field collection defeated, annotate and adopt equipment, the most important ensures equipment operation safety, and the equipment that the oil field utilized is more expensive, if the incident takes place, this economic loss that can seriously influence the enterprise utilizes intelligent water injection monitored control system can help the staff in time to master the operational aspect and the working data of equipment, reduces the emergence of incident.
4) The utility model discloses possess water injection pipe network pressure automatically regulated function, when the oil field collection is defeated, the water injection pump station starts, need carry out continuous monitoring to the difference between the outlet pressure of every pump station and the system pressure, because the existence that changes pressure differential, the aperture that intelligence water injection monitored control system can ensure the pump station export realizes the self-regulation, ensures that the outlet pressure value can control within reasonable scope to guarantee entire system's safe operation.
5) The utility model discloses can reduce equipment wearing and tearing, reduce work intensity of labour. The pump valve of the oil field gathering and transportation and water injection pump station is opened and closed and is adjusted and mainly depends on the frequency converter, the opening process is gentle, and the service time of the pump valve can be effectively prolonged. The device is comprehensively monitored and protected in the operation process of the whole oil field gathering and transportation and water injection pump station, and the damage of external factors to the device can be effectively compensated. In addition, the intelligent water injection monitoring system can provide accurate data monitoring and control, workers on a working post can directly know the operation condition of the pump station, relevant data can be obtained without manual collection, and the labor intensity of the workers is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic circuit diagram of the power supply system of the present invention;
fig. 3 is a schematic diagram of the PLC system input circuit of the present invention;
fig. 4 is a schematic diagram of a selection switch circuit of the control panel of the present invention;
fig. 5 is a schematic diagram of the field device connection circuit of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the oilfield intelligent water injection monitoring system comprises a power supply system, a PLC system, a frequency conversion system, an operator station, a control panel and a field device, wherein: the power supply system is used for supplying power to the system; the PLC system is used for data storage, operation and analysis, the PLC system is connected with the frequency conversion system through an RS485 shielded twisted pair, the PLC system is connected with an operator station through an Ethernet interface, the PLC system is connected with the control panel through an I/O port, and the PLC system is connected with field equipment through a D/A port; the frequency conversion system receives a start-stop command and a frequency converter speed given signal sent by the PLC system and controls the working state of the water injection pump; the operator station is an industrial personal computer; the control panel consists of a plurality of selection switches, buttons and indicator lamps, the selection switches and the buttons are used for receiving operation signals, and the indicator lamps are used for displaying the working state of the system; the field device comprises an inlet and outlet pressure sensor, an inlet and outlet temperature transmitter and a storage tank liquid level transmitter, and the field device adopts the existing transmitter or sensor.
It should be noted that the frequency conversion system is an execution part of the whole system regulation, and can complete the automatic regulation of accurate water injection and output pressure; the PLC system is the core of the whole system and realizes the functions of information acquisition, storage, analysis and calculation, variable frequency start-stop and speed command giving; the operator station and the control panel are interfaces for human-computer input, and have the functions of equipment operation, fault alarm and historical data query and statistics; the field sensor collects parameters and technological parameters of the water injection pump unit, and the scheme has the advantages of safe and reliable operation, reduced energy consumption, increased economic benefit, reduced equipment abrasion, reduced labor intensity and convenient popularization and application.
In practical application, the PLC system adopts a SMART200PLC type controller. The frequency conversion system adopts ACS580 type converter, the A, the B terminal of ACS580 type converter connect PLC system DB9 port's 5 th stitch and 8 th stitch respectively, adopt MODBUS _ RTU agreement, realize the frequency conversion operation, the frequency conversion trouble, frequency conversion speed, the frequency converter is undervoltage, overvoltage protection, the converter lacks the phase protection, the converter overload protection state reads, PLC system sends through RS485 shielding twisted pair line to frequency conversion system and opens and stop the order, the given signal of frequency converter speed, the operator station adopts IPC-610L type industrial control machine.
Specifically, the ACS580 type frequency converter can realize the control function of one cabinet with two pumps, one frequency converter can be respectively applied to two adjacent water injection pumps through manual switching and selection in the control cabinet, and when one pump has a fault, the other pump can use frequency conversion through electrical switching, so that the utilization rate of the frequency converter is improved. The protection (inlet and outlet pressure, inlet and outlet temperature, storage tank liquid level and the like) signals of the water injection pump enter the frequency conversion cabinet to realize chain protection. The closed-loop control function is designed by utilizing a PID (proportion integration differentiation) adjusting module of the frequency converter, and the output frequency of the frequency converter is automatically controlled by detecting the outlet header pressure of the pump and carrying out PI (proportional integral) operation on the outlet header pressure and the set pressure.
In this embodiment, the power supply system is led out three loops of frequency conversion loop, alternating current control loop and direct current loop by 380V three-phase alternating current power supply, and the circuit has simple structure, reasonable design, convenient implementation and low cost. Specifically, power supply system includes main power supply circuit, PLC supply circuit and switching power supply circuit, wherein: the main power supply circuit comprises a molded case circuit breaker QF1, a frequency converter VFD1, a first alternating current contactor KM1 and a second alternating current contactor KM2, three-phase power of the main circuit enters the frequency converter VFD1 after passing through the molded case circuit breaker QF1, then enters the frequency converter VFD1 after passing through the frequency converter VFD1, and then enters the first alternating current contactor KM1 and the second alternating current contactor KM2 in parallel, the first alternating current contactor KM1 is used for being communicated with an external first water injection pump, and the second alternating current contactor KM2 is used for being communicated with an external second water injection pump; the PLC power supply circuit comprises a miniature circuit breaker QF2, and three-phase power of a main circuit is connected to a power supply wiring live wire terminal and a zero line terminal of the PLC system through the miniature circuit breaker QF 2; the power supply circuit of the switching power supply comprises a small circuit breaker QF3 and the switching power supply, three-phase power of a main circuit enters the switching power supply through the small circuit breaker QF3, and the switching power supply converts AC220V into DC24V.
Specifically, a main circuit is formed by connecting a 380V three-phase alternating-current power supply L1 line, an L2 line and an L3 line through a molded case circuit breaker QF1, then connecting three-phase input terminals R, S and T of a frequency converter VFD1, entering the frequency converter, performing frequency conversion through the frequency converter, and then passing through alternating-current contactors KM1 and KM2; the KM1 contactor is connected with a three-phase power supply U, V and W of an external 1# water injection pump motor M1; the power supply passes through a KM2 contactor and is connected with three-phase power supplies U, V and W of an external 2# water injection pump motor M2; the grounding end PE of the frequency converter VFD1 is grounded together with the grounding ends of the external 1#, 2# water injection pump motors M1, M2. The PLC power supply circuit is connected to PLC power connection terminals L1 and N through a QF2 miniature circuit breaker by 380V three-phase alternating-current power supply L1 and 1N lines. The power supply circuit of the switching power supply is characterized in that 380V three-phase alternating current power supplies L1, 1N and 1P wires are connected with terminals of the switching power supplies L, N and PE through a QF3 miniature circuit breaker, and the terminals of 1L + and M are output and provided for a control circuit after passing through the switching power supply.
In this embodiment, the control panel includes an on-site/computer selection button SA1, an emergency stop button espop, a fault reset button S1, a start button S2, a stop button S3, a dual-pump set knob SA2, and a frequency conversion operation indicator lamp HL1, a frequency conversion fault indicator lamp HL2, a first water injection pump operation indicator lamp HL3, and a second water injection pump operation indicator lamp HL4, wherein: the local/computer selection button SA1 is a double-position button and comprises two groups of contacts, wherein one end of one group of contacts is connected with an I0.0 terminal of the SMART200PLC, and the other end of the contacts is connected with a positive electrode output end 24V of a switching power supply circuit; one end of the other group of contacts of the local/computer selection button SA1 is connected with an I0.1 terminal of the SMART200 type PLC, and the other end is connected with a positive electrode output end 24V of the switching power supply circuit; the emergency stop button ESTOP is a reset button, one end of the emergency stop button ESTOP is connected with an I0.2 terminal of the SMART200 type PLC, and the other end of the emergency stop button ESTOP is connected with a positive electrode output end 24V of a switching power supply circuit; the fault reset button S1 is a reset button, one end of the fault reset button S1 is connected with an I0.3 terminal of the SMART200PLC, and the other end of the fault reset button S1 is connected with a positive electrode output end 24V of the switching power supply circuit; the starting button S2 is a reset button, one end of the starting button is connected with an I0.4 terminal of the SMART200 type PLC, and the other end of the starting button is connected with a positive electrode output end 24V of the switching power supply circuit; the stop button S3 is a reset button, one end of the stop button is connected with an I0.5 terminal of the SMART200PLC, and the other end of the stop button is connected with a positive electrode output end 24V of the switching power supply circuit; the double-pump setting knob SA2 is a selection switch, one end of the double-pump setting knob is connected with an I0.6 terminal of the SMART200PLC, and the other end of the double-pump setting knob is connected with a positive electrode output end 24V of the switching power supply circuit; one end of a frequency conversion operation indicator lamp HL1 is connected with an I0.7 terminal of the SMART200 type PLC, and the other end of the frequency conversion operation indicator lamp HL1 is connected with a positive electrode output end 24V of a switching power supply circuit; one end of a frequency conversion fault indicator lamp HL2 is connected with an I0.8 terminal of the SMART200 type PLC, and the other end of the frequency conversion fault indicator lamp HL2 is connected with a positive electrode output end 24V of a switching power supply circuit; one end of a first water injection pump operation indicator lamp HL3 is connected with an I0.9 terminal of the SMART200 type PLC, and the other end of the first water injection pump operation indicator lamp HL3 is connected with a positive electrode output end 24V of a switching power supply circuit; one end of a second water injection pump operation indicator lamp HL4 is connected with an I0.10 terminal of the SMART200PLC, and the other end is connected with an anode output end 24V of the switching power supply circuit.
In the figure, the control panel further comprises a variable-frequency valve-closing feedback switch QF1, a system fault buzzer and the like, and the connection method is the same as that described above.
In actual operation, in order to improve the reliability of the equipment, the local and computer operation modes are adopted. When the control panel selector switch is in place, the panel rotating speed knob position is set, the double-pump selector switch is used for setting the 1# or 2# water injection pump, the start button is pressed, the variable frequency system operates in an open loop mode according to the set rotating speed, and when the variable frequency system needs to stop, the control panel stop button is pressed. When the control panel is selected as the computer position, a starting button is directly pressed by an upper computer in an operation station, the frequency conversion system automatically adjusts closed-loop operation according to inlet and outlet pressure, chain protection conditions, liquid level of the storage tank and the like, and the upper computer automatically records instrument data, forms trends and reports and is convenient to query; when the system gives an alarm and a fault signal, the frequency conversion system gives out a sound alarm, and the upper computer automatically records according to the occurrence and recovery time to form a table.
In this embodiment, the monitoring system mainly includes unit parameter and process parameter monitoring. The unit parameters mainly comprise data monitoring of the pressure of an inlet and an outlet of a pump station. The water injection technological parameters mainly comprise incoming water temperature, incoming water pressure and the like. In general, in order to ensure consistent water injection amount change, a frequency converter is adopted for a pump station to adjust the rotating speed of a water injection motor according to actual water consumption, so that the consistent water injection amount and the water injection requirement are ensured. Because different types of parameter designs need to be adopted in the actual process, various working condition parameters of the pump station need to be collected in time, and corresponding processing means are made. In addition, the automatic monitoring of the oil field gathering and transportation and water injection pump station can be realized, if the pump station is in an abnormal operating state, an alarm system can be triggered, the whole system mainly comprises a water injection pump water inlet pressure alarm system, a storage tank low liquid level alarm system and the like, priority setting is carried out on alarms in different levels, so that alarm information can be distinguished, shutdown processing is required under special conditions, and a worker can carry out priority processing according to accident levels. When the oil field gathering and transportation and water injection pump station is started, the difference between the outlet pressure of each pump station and the system pressure needs to be continuously monitored, and due to the existence of the change pressure difference, the intelligent water injection monitoring system can ensure that the rotation speed of a motor of the pump station can be self-regulated, and ensure that the outlet pressure value can be controlled within a reasonable range, so that the safe operation of the whole system is ensured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. The utility model provides an oil field intelligence water injection monitored control system, its characterized in that, includes power supply system, PLC system, frequency conversion system, operator station, control panel and field device, wherein:
the power supply system is used for supplying power to the system;
the PLC system is used for data storage, operation and analysis, the PLC system is connected with the frequency conversion system through an RS485 shielding twisted pair, the PLC system is connected with an operator station through an Ethernet interface, the PLC system is connected with the control panel through an I/O port, and the PLC system is connected with field equipment through a D/A port;
the frequency conversion system receives a start-stop command and a frequency converter speed given signal sent by the PLC system and controls the working state of the water injection pump;
the operator station is an industrial personal computer;
the control panel consists of a plurality of selection switches, buttons and indicator lamps, the selection switches and the buttons are used for receiving operation signals, and the indicator lamps are used for displaying the working state of the system;
the field device comprises an inlet and outlet pressure sensor, an inlet and outlet temperature transmitter and a storage tank liquid level transmitter.
2. The intelligent oilfield flooding monitoring system of claim 1 wherein the power supply system comprises a main power supply circuit, a PLC power supply circuit, and a switching power supply circuit, wherein:
the main power supply circuit comprises a molded case circuit breaker (QF 1), a frequency converter (VFD 1), a first alternating current contactor (KM 1) and a second alternating current contactor (KM 2), main circuit three-phase power enters the frequency converter (VFD 1) after passing through the molded case circuit breaker (QF 1), and then enters the first alternating current contactor (KM 1) and the second alternating current contactor (KM 2) in parallel after passing through the frequency converter (VFD 1), the first alternating current contactor (KM 1) is used for being communicated with an external first water injection pump, and the second alternating current contactor (KM 2) is used for being communicated with an external second water injection pump;
the PLC power supply circuit comprises a miniature circuit breaker (QF 2), and the three-phase power of the main circuit is connected to a power supply wiring live wire terminal and a zero line terminal of the PLC system through the miniature circuit breaker (QF 2);
the power supply circuit of the switching power supply comprises a miniature circuit breaker (QF 3) and the switching power supply, three-phase power of a main circuit enters the switching power supply through the miniature circuit breaker (QF 3), and the switching power supply converts AC220V into DC24V.
3. The intelligent oilfield flooding monitoring system of claim 1 wherein the PLC system employs a SMART200 PLC-type controller.
4. The intelligent oilfield water injection monitoring system of claim 1, wherein the frequency conversion system is an ACS580 type frequency converter, and the a and B terminals of the ACS580 type frequency converter are respectively connected to the 5 th pin and the 8 th pin of the DB9 port of the PLC system.
5. The oilfield intelligent waterflood monitoring system of claim 1, wherein the operator station employs an IPC-610L type industrial control machine.
6. The oilfield intelligent water injection monitoring system of claim 1, wherein the control panel comprises an on-site/computer selection button (SA 1), an emergency stop button (ESTOP), a fault reset button (S1), a start button (S2), a stop button (S3), and a dual-pump set knob (SA 2), and a variable frequency operation indicator lamp (HL 1), a variable frequency fault indicator lamp (HL 2), a first water injection pump operation indicator lamp (HL 3), and a second water injection pump operation indicator lamp (HL 4), wherein:
the local/computer selection button (SA 1) is a double-position button and comprises two groups of contacts, wherein one end of one group of contacts is connected with an I0.0 terminal of the SMART200PLC, and the other end of the one group of contacts is connected with a positive electrode output end 24V of a switching power supply circuit; one end of the other group of contacts of the local/computer selection button (SA 1) is connected with an I0.1 terminal of the SMART200PLC, and the other end is connected with a positive electrode output end 24V of the switching power supply circuit;
the emergency stop button (ESTOP) is a reset button, one end of the ESTOP is connected with an I0.2 terminal of the SMART200PLC, and the other end of the ESTOP is connected with a positive electrode output end 24V of the switching power supply circuit;
the fault reset button (S1) is a reset button, one end of the fault reset button is connected with an I0.3 terminal of the SMART200 type PLC, and the other end of the fault reset button is connected with a positive electrode output end 24V of the switching power supply circuit;
the start button (S2) is a reset button, one end of the start button is connected with an I0.4 terminal of the SMART200PLC, and the other end of the start button is connected with a positive electrode output end 24V of the switching power supply circuit;
the stop button (S3) is a reset button, one end of the stop button is connected with an I0.5 terminal of the SMART200 type PLC, and the other end of the stop button is connected with a positive electrode output end 24V of the switching power supply circuit;
the double-pump setting knob (SA 2) is a selection switch, one end of the double-pump setting knob is connected with an I0.6 terminal of the SMART200PLC, and the other end of the double-pump setting knob is connected with a positive electrode output end 24V of the switching power supply circuit;
one end of the frequency conversion operation indicator lamp (HL 1) is connected with an I0.7 terminal of the SMART200 type PLC, and the other end of the frequency conversion operation indicator lamp is connected with a positive electrode output end 24V of the switching power supply circuit;
one end of the frequency conversion fault indicator lamp (HL 2) is connected with an I0.8 terminal of the SMART200 type PLC, and the other end of the frequency conversion fault indicator lamp is connected with a positive electrode output end 24V of the switching power supply circuit;
one end of the first water injection pump operation indicator lamp (HL 3) is connected with an I0.9 terminal of the SMART200 type PLC, and the other end of the first water injection pump operation indicator lamp is connected with a positive electrode output end 24V of the switching power supply circuit;
one end of the second water injection pump operation indicator lamp (HL 4) is connected with the I0.10 terminal of the SMART200 type PLC, and the other end of the second water injection pump operation indicator lamp is connected with the anode output end 24V of the switching power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221688446.4U CN217632392U (en) | 2022-07-02 | 2022-07-02 | Intelligent water injection monitoring system for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221688446.4U CN217632392U (en) | 2022-07-02 | 2022-07-02 | Intelligent water injection monitoring system for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217632392U true CN217632392U (en) | 2022-10-21 |
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