CN108897253A - A kind of oilfield oil well special comprehensive intelligent controller - Google Patents
A kind of oilfield oil well special comprehensive intelligent controller Download PDFInfo
- Publication number
- CN108897253A CN108897253A CN201810727310.1A CN201810727310A CN108897253A CN 108897253 A CN108897253 A CN 108897253A CN 201810727310 A CN201810727310 A CN 201810727310A CN 108897253 A CN108897253 A CN 108897253A
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- voltage
- intelligent controller
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- 239000003129 oil well Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 11
- 238000005070 sampling Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims abstract description 3
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 5
- 230000006855 networking Effects 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 7
- 238000005086 pumping Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to technical field of electronic control, more particularly to a kind of oilfield oil well special comprehensive intelligent controller, hardware includes voltage and current detection module, switching input module, relay output module, power module, single-chip microcontroller P87LPC76X and LCD liquid crystal display screen, it further include integrated intelligent controller ontology, matched cell phone application and current transformer and voltage sampling, remote controler and wireless telecommunications expansion module, product has defencive function complete, measurement parameter is complete, it is quick on the draw, reliable in action, measuring accuracy is high and digitizes, it is intelligent, the Multifunctional oil-well special comprehensive intelligent controller of the functions such as networking.It is exclusively used in the control of petroleum industry oil-water well; in addition to the under-voltage of routine, over-voltage, disconnected phase, overload, stall, three-phase imbalance protection; distinctive inlet pressure, outlet pressure, oil temperature, oil level defencive function; this product can greatly reduce administrative staff; save use cost; not only safety, but also working environment is improved, there is very strong creativeness.
Description
Technical field
The present invention relates to technical field of electronic control, and in particular to a kind of oilfield oil well special comprehensive intelligent controller.
Background technique
With the exploitation in oil field, pumping unit is installed and water injection well is more and more, oil-water well is largely distributed in field, and equipment is equal
For outdoor installation, management service is time-consuming and laborious, and major part oil well carries out the state of oil well still by the way of manual patrol at present
Monitoring, this monitoring mode low efficiency cannot accomplish real-time monitoring, far can not adapt to the needs of oil field production development.
Therefore the teledata real-time monitoring system of detection technique is applied to oil well monitor, has become the inexorable trend of oil field development.
For this purpose, each phase operating voltage, electric current, the active power, idle function of each oil well can be monitored as a kind of electronic equipment
There is event in the operating status of the data such as rate, power factor, active energy, reactive energy and oil-well motor, protection motor phase failure
Barrier then trips, and can mitigate oil recovery worker onerous toil by signal teletransmission to administrative department, will play for oil field development important
Effect.
Operation of the oil recovery worker to oil-water well electromechanical equipment at present mainly still needs artificial mode in oil-water well electromechanics
It being operated in the operation cabinet of equipment, oil-water well electromechanical equipment is all to belong to high-tension apparatus, and manual operation has certain risk, this
Invention remote controler and mobile phone can operate oil-water well electromechanical equipment, substantially increase the safety of oil recovery worker, and drop
The low labor intensity of operator, since pumping unit and water injection well are generally located at remote, starting or stoping pumping unit needs to operate
Personnel reach pumping unit present position from production crew and could operate, it is necessary to the uninterrupted timing patrol of oil recovery worker is arranged,
Human resources are wasted significantly, now only need a people, a mobile phone operation to complete safe light.
Summary of the invention
In view of the deficiencies of the prior art, the invention discloses a kind of oilfield oil well special comprehensive intelligent controller, this hairs
It is bright to greatly reduce administrative staff, use cost is saved, not only safety, but also improve working environment, operator on duty only needs to pass through
One mobile phone can grasp oil well operating condition in real time, can be controlled electromechanical equipment with a remote controler.
The present invention is achieved by the following technical programs：
A kind of oilfield oil well special comprehensive intelligent controller, hardware include voltage and current detection module, On-off signal mould
Block, relay output module, power module, single-chip microcontroller P87LPC76X and LCD liquid crystal display screen, it is characterised in that：Including synthesis
Intelligent controller ontology, matched cell phone application and current transformer and voltage sampling, remote controler and wireless telecommunications expansion module,
Described intelligent controller the machine exports No. 10 control relay circuits, and the integrated intelligent controller is equipped with LCD liquid crystal display screen,
By matched current transformer and voltage sampling, acquire the electrical parameter of oil-water well electromechanical equipment, by electrical parameter by RS485 or
Wireless signal is uploaded to host computer and mobile phone；The machine exports cell phone application described in No. 10 control relay circuits by voice to intelligence
Can control device issuing system inspection instruction and by real-time Data Transmission to cell phone application, electromechanical equipment is transported by remote controler
Row stops operation.
Preferably, the LCD liquid crystal display can show 2 row, 9 Chinese characters, can show following content line by line by key：Electric current,
Voltage, active power, power factor (PF), active and reactive energy when the phase.
Preferably, the mating current transformer and voltage sampling are believed in the input power line end collection voltages of electromechanical equipment
Number, the output power line of electromechanical equipment passes through mutual inductor, and current transformer acquires the current signal of electromechanical equipment.
Preferably, the voltage signal and current signal are respectively connected to integrated intelligent controller, survey for intelligent controller
Measure electric current when electromechanical equipment operation, voltage, electricity consumption and trip protection and can instant teletransmission when motor phase failure failure.
Preferably, the key includes lifting key, moves to left three key, setting/reset key button operations, realizes liquid crystal screen display
Show the conversion and parameter setting at interface；
Preferably, the cell phone application is used for number of devices by the two dimensional code installation printed on available handsets scanning monitor ontology
According to remotely check and voice operating, the remote controler can issue operation and halt instruction to electromechanical equipment.
Preferably, the current signal Acquisition Circuit of the current detection module turns current signal with current transformer
Formation voltage signal obtains voltage value using rectification, filtering processing, and then DC voltage is divided into 0-by divider resistance
Voltage signal within the scope of 5V is supplied to single-chip microcontroller analog/digital conversion channel.
Preferably, the voltage signal acquisition circuit of the voltage detection module, through voltage transformer to the voltage detected
Signal carries out isolated buck processing, due to collected sinusoidal AC voltage signal, it is necessary to is first rectified by rectification circuit
D. c. voltage signal, meanwhile, smooth d. c. voltage signal is obtained by filter circuit, then DC voltage passes through partial pressure electricity
Resistance is divided into voltage signal within the scope of 0-5V, is supplied to single-chip microcontroller analog/digital conversion channel.
Preferably, it is as follows to be equipped with interference protection measure for the intelligent controller：
1. power unit adds filter and transient voltage suppressor, considers and remove power supply disturbance；
2. between each integrated package power supply and ground and a 0.1 μ F high frequency capacitance is connect on circuit board, to reduce integrated package to power supply
Influence；
3. circuit board rationalization partition, strong and weak electricity is separated, digital/analog signal is separated；
4. monitoring programme executes using the watchdog circuit inside single-chip microcontroller.
Preferably, cell phone application using when be first turned on mobile phone, the two dimensional code on scanning monitor panel, click concern, it is defeated
Enter the patented product that product serial number is confirmed as my company's production to click phonetic function after being proved to be successful, realize by voice
To the function control of controller, after starting, information interface can show motor operating state real time data.Such as electrical fault, APP
Meeting voice reporting failure, and it is automatically stopped work.The reason of failure is occurred is analyzed simultaneously, it can be efficient, quasi- convenient for staff
True investigation failure.
Beneficial effects of the present invention are：
The present invention has that defencive function is complete, measurement parameter is complete, be quick on the draw, reliable in action, measuring accuracy are high and digitlization,
The Multifunctional oil-well special comprehensive intelligent controller of the functions such as intelligence, networking.It is exclusively used in the control of petroleum industry oil-water well, is removed
Conventional under-voltage, over-voltage, disconnected phase, overload, stall, three-phase imbalance protection are outer, distinctive inlet pressure, outlet pressure, oil temperature,
Oil level defencive function.Administrative staff can be greatly reduced, save use cost, not only safety, but also improve working environment, operator on duty
It only needs that oil well operating condition can be grasped in real time by a mobile phone, electromechanical equipment can be controlled with a remote controler
System.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is function and schematic diagram of the invention；
Fig. 2 is outline drawing of the invention；
Fig. 3 is intelligent controller internal structure chart of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The present invention can have by matched current transformer and voltage sampling, including three-phase voltage, three-phase current, three-phase
Function, conjunction is mutually active, closes mutually idle, power factor, active energy and reactive energy, acquires the electrical parameter of oil-water well electromechanical equipment,
Electrical parameter can be uploaded to host computer and mobile phone by RS485 or wireless signal；Available handsets APP is by voice to intelligent control
Device issuing system inspection instructs and by real-time Data Transmission to cell phone application, can be run, be stopped to electromechanical equipment by remote controler
Only operate.
The machine exports No. 2 control relay circuits, wherein relay normally open output contact all the way, another way relay is normal
Open/normally closed output contact；2 way switch amount state outputs（Passive dry contact）, DC24V output
When Starting mode is set as " the machine is without starting ", controller only has electric motor protecting stopping function, and no starting controls function
Energy；
When Starting mode is set as " the machine can start ", wherein relay is normally-closed contact all the way, used as protection contact, separately
Relay is normally opened contact all the way, is used as starting contact；
When Starting mode is set as " the machine can start ", motor remote control can be realized by wired or wireless communication modes
Start and stop.
The machine is communicated with two-way, is all the way RS485 wire communication interface, and another way is 2.4G wireless communication interface, is led to
News specification is Modbus RTU.
Monitoring interface is as follows：
(parameter is at least divided into 3 groups to parameter setting：Communication, electricity ginseng, protection)
| Liquid crystal display content | Function declaration | Factory setting |
| Password 000 is set | Input setting password. | |
| Im=000.0 is arranged in rated current | It is arranged according to using the rated current of motor. | Motor operating voltage 380V is 60A；Operating voltage 1140V is 30A； |
| Open-phase protection action delay | 1~20S | |
| Current unbalance factor setting | ||
| The delay of current imbalance protection act | 1~20S | |
| Stall multiple | 2.0~8.0Im | |
| Rotation-clogging protection action delay | 1~20S | |
| Undercurrent multiple | 1~20S | |
| Undercurrent action delay | 1~20S | |
| Address | 1~100 | 1 |
| Communication speed | 2400/4800/9600/19200bps | 9600 |
| Even-odd check | No parity check, odd, even parity check | No parity check |
| Starting mode | The machine can start without starting, the machine（Note 1） |
The hardware of this product is constituted, mainly by voltage and current detection module, switching input module, relay output module,
The composition such as power module, CPU module-single-chip microcontroller P87LPC76X, liquid crystal display, MODBUS-RTU communication module.
1, current signal Acquisition Circuit.Current signal is converted to voltage signal with current transformer, using rectification,
Filtering processing obtains voltage value, and then DC voltage is divided into voltage signal within the scope of 0-5V by divider resistance, is supplied to list
Piece machine analog/digital conversion channel.
2, voltage signal acquisition circuit.Isolated buck processing is carried out to the voltage signal detected through voltage transformer, by
In collected sinusoidal AC voltage signal, it is necessary to be first rectified into d. c. voltage signal by rectification circuit.Meanwhile passing through filter
Wave circuit obtains smooth d. c. voltage signal, and then DC voltage is divided into voltage within the scope of 0-5V by divider resistance
Signal is supplied to single-chip microcontroller analog/digital conversion channel.
3, Anti-interference Design.The basic principle of Anti-interference Design is：Inhibit interference source, cutting interferencing propagation path and raising
The interference free performance of sensing element.The interference protection measure that this product is taken have 1. power unit add filter and transient voltage to inhibit
Diode considers and removes power supply disturbance；2. between each integrated package power supply and ground and a 0.1 μ F high frequency capacitance is connect on circuit board, with
Reduce influence of the integrated package to power supply；3. circuit board rationalization partition, strong and weak electricity is separated, digital/analog signal is separated；4. using
Watchdog circuit inside single-chip microcontroller, monitoring programme execute.By this series of measure, the jamproof performance of product is substantially mentioned
It rises.
Meanwhile by matching with various sensors, motor parameters on-line monitoring and display are realized, by internal logical
Communication interface is back to control room or cell phone application, is truly realized intelligent control and intellectual monitoring, reduces the work of operator on duty
Amount.Have many advantages, such as that energy conservation, efficient, accurate, defencive function is complete, represents the hair of current motor intelligent comprehensive controller simultaneously
Exhibition trend.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that：It still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of oilfield oil well special comprehensive intelligent controller, hardware includes voltage and current detection module, On-off signal
Module, relay output module, power module, single-chip microcontroller P87LPC76X and LCD liquid crystal display screen, it is characterised in that：Including comprehensive
Close intelligent controller ontology, matched cell phone application and current transformer and voltage sampling, remote controler and wireless telecommunications expanded mode
Block, described intelligent controller the machine export No. 10 control relay circuits, and the integrated intelligent controller is equipped with LCD liquid crystal display
Screen is acquired the electrical parameter of oil-water well electromechanical equipment, electrical parameter is passed through by matched current transformer and voltage sampling
RS485 or wireless signal are uploaded to host computer and mobile phone；The machine exports cell phone application described in No. 10 control relay circuits and passes through language
Sound instructs intelligent controller issuing system inspection and by real-time Data Transmission to cell phone application, by remote controler to electromechanical equipment
It run, stopped operation.
2. oilfield oil well special comprehensive intelligent controller as described in claim 1, it is characterised in that：The LCD liquid crystal display
It can show 2 row, 9 Chinese characters, following content can be shown by key line by line：It is electric current, voltage, active power, power factor (PF), active
And reactive energy when the phase.
3. oilfield oil well special comprehensive intelligent controller as described in claim 1, it is characterised in that：The mating electric current is mutual
In the input power line end collection voltages signal of electromechanical equipment, the output power line of electromechanical equipment passes through mutual for sensor and voltage sampling
Sensor, current transformer acquire the current signal of electromechanical equipment.
4. oilfield oil well special comprehensive intelligent controller as claimed in claim 3, it is characterised in that：The voltage signal with
Current signal is respectively connected to integrated intelligent controller, electric current, voltage, use when for intelligent controller measurement electromechanical equipment operation
Trip protection and energy instant teletransmission when electricity and motor phase failure failure.
5. oilfield oil well special comprehensive intelligent controller as claimed in claim 2, it is characterised in that：The key includes upper
It rises key, move to left three key, setting/reset key button operations, realize the conversion and parameter setting of liquid crystal display display interface.
6. oilfield oil well special comprehensive intelligent controller as described in claim 1, it is characterised in that：The cell phone application is logical
The two dimensional code installation printed on available handsets scanning monitor ontology is crossed, for remotely checking and voice operating for device data,
The remote controler can issue operation and halt instruction to electromechanical equipment.
7. oilfield oil well special comprehensive intelligent controller as described in claim 1, it is characterised in that：The current detecting mould
Current signal is converted to voltage signal with current transformer by the current signal Acquisition Circuit of block, at rectification, filtering
Reason obtains voltage value, and then DC voltage is divided into voltage signal within the scope of 0-5V by divider resistance, is supplied to single-chip microcontroller
Analog/digital conversion channel.
8. oilfield oil well special comprehensive intelligent controller as described in claim 1, it is characterised in that：The voltage detecting mould
The voltage signal acquisition circuit of block carries out isolated buck processing to the voltage signal detected through voltage transformer, due to acquisition
The sinusoidal AC voltage signal arrived, it is necessary to d. c. voltage signal is first rectified by rectification circuit, meanwhile, pass through filter circuit
Smooth d. c. voltage signal is obtained, then DC voltage is divided into voltage signal within the scope of 0-5V by divider resistance, mention
Supply single-chip microcontroller analog/digital conversion channel.
9. oilfield oil well special comprehensive intelligent controller as described in claim 1, it is characterised in that：The intelligent controller
It is as follows equipped with interference protection measure：
1. power unit adds filter and transient voltage suppressor, considers and remove power supply disturbance；
2. between each integrated package power supply and ground and a 0.1 μ F high frequency capacitance is connect on circuit board, to reduce integrated package to power supply
Influence；
3. circuit board rationalization partition, strong and weak electricity is separated, digital/analog signal is separated；
4. monitoring programme executes using the watchdog circuit inside single-chip microcontroller.
10. oilfield oil well special comprehensive intelligent controller as described in claim 1, it is characterised in that：The cell phone application makes
Used time is first turned on mobile phone, and the two dimensional code on scanning monitor panel clicks concern, and input product series number is confirmed as my company
The patented product of production after being proved to be successful, clicks phonetic function, the function control to controller is realized by voice, starts
Afterwards, information interface can show motor operating state real time data, and such as electrical fault, APP understands voice reporting failure, and is automatically stopped
Work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727310.1A CN108897253A (en) | 2018-07-05 | 2018-07-05 | A kind of oilfield oil well special comprehensive intelligent controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810727310.1A CN108897253A (en) | 2018-07-05 | 2018-07-05 | A kind of oilfield oil well special comprehensive intelligent controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108897253A true CN108897253A (en) | 2018-11-27 |
Family
ID=64348059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810727310.1A Pending CN108897253A (en) | 2018-07-05 | 2018-07-05 | A kind of oilfield oil well special comprehensive intelligent controller |
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| Country | Link |
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| CN (1) | CN108897253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109708A (en) * | 2021-03-31 | 2021-07-13 | 江汉油田瑞腾达工程潜江有限公司 | Monitoring method and device for oil well motor |
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| CN202467822U (en) * | 2012-07-19 | 2012-10-03 | 大庆嘉彩石油科技有限公司 | Acquisition and analysis instrument for electric parameter working condition of oil well |
| CN202937250U (en) * | 2012-12-13 | 2013-05-15 | 刘海滨 | Oil field oil-water well remote telemetry system |
| CN104359237A (en) * | 2014-11-10 | 2015-02-18 | 南通大学 | Remote control method for solar water heater |
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2018
- 2018-07-05 CN CN201810727310.1A patent/CN108897253A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201156191Y (en) * | 2008-02-22 | 2008-11-26 | 新疆派犨泰克石油科技有限责任公司 | Oil pumping well controller |
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| CN113109708A (en) * | 2021-03-31 | 2021-07-13 | 江汉油田瑞腾达工程潜江有限公司 | Monitoring method and device for oil well motor |
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