CN109057778A - Signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect - Google Patents
Signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect Download PDFInfo
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- CN109057778A CN109057778A CN201811266529.2A CN201811266529A CN109057778A CN 109057778 A CN109057778 A CN 109057778A CN 201811266529 A CN201811266529 A CN 201811266529A CN 109057778 A CN109057778 A CN 109057778A
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- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 5
- 210000002445 nipple Anatomy 0.000 claims description 26
- 239000003129 oil well Substances 0.000 claims description 15
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Classifications
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- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0085—Adaptations of electric power generating means for use in boreholes
-
- 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses signal measurement and wireless transmitting systems under a kind of rod-pumped well based on piezoelectric effect, it is made of several signal measurements and radio transmitting device and terrestrial wireless transmission/reception, signal measurement and radio transmitting device can replace box cupling for connecting with pumping rod, during pumping unit drives sucker rod to move up and down, electric energy can be converted by a part of kinetic energy by the vibration of foil gauge on generating body to be stored in battery, there is sensor signal processing circuit on measurement and the flexible printed circuit board in radio transmitting device, wireless transmission receives circuit and main control circuit etc., pass through ZigBee home control network communication protocol and ground communications, realize the self-powered underground wireless communication of device, structure is simple, it is easy for installation, it is adaptable, solves existing in the prior art at high cost and difficulty of construction Big problem can adapt to different working environments using different mounting means according to different well depths.
Description
Technical field
The present invention is concretely especially with regard to oil well direct-reading measurement technology about oil field well monitoring technology
Signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric material.
Background technique
In petroleum production engineering of today, there is miscellaneous oil production method, but it is main use bar recover the oil
Mode.There is bar to recover the oil and be connected to the oil well pump of thousands of meters of underground using elongated sucker rod, by the pumping unit for being fixed on ground
Sucker rod up and down motion is driven to reach oil pumping purpose.
Sucker rod is the slender rod piece of rod-pumped well, and the polished rod eye of pumping unit is connect on it, under connect oil pumping and pump up transmitting power
Effect.Sucker rod joint length is 7.62,8 or 9.14 meters, and material is usually low-carbon alloy steel by modifier treatment, single
External screw thread is processed at the both ends of sucker rod, then sucker rod will be connected one by one with a kind of standard connector for being box cupling,
Internal screw thread is processed at the both ends of box cupling, and length is generally 100 millimeters, and outer diameter is more slightly larger than sucker rod, passes through pumping in oil pipe in this way
Oil pump piston at oilbearing stratum is connected by beam hanger with the polished rod eye on pumping unit " horse head ", by pumping unit reciprocating motion come
Pump oil.
Now with the drop of oil price, each oil field production unit is increasingly paid attention to producing energy efficiency, such as changes to pumping unit
For frequency control, the adjustable oil pumping frequency is realized, the optimization of water injection pressure and flow to water injection well changes to promote oil production,
But the setting of these current parameters is all based on the experience of operator, in default of the measurement of subsurface environment data, such as fills the water
Water injection pressure and flow are very big in well, and what is pumped in oil well is the very high crude oil of water content, will result in the pole of energy
Big waste.On the other hand, current oil well depth is generally in 2~3 kms or so, and the oil well depth of Karamay, Xinjiang is up to 6
~7 kms, and underground working is sufficiently complex, working environment very severe, is not only influenced by pumping units such as machine, bar, pumps,
It is also directly influenced by sand, wax, gas and water, failure rate is very high, and in order to guarantee that pumpingh well normally produces, extending pumping unit makes
With the service life, the working condition of pumpingh well must be just grasped accurately and in time, diagnose failure present in pumpingh well.
The existing oil well in China in process of production, is monitored almost without to oil well environmental parameter, right at present
Mainly pass through oil production engineering person in the operating condition of pumpingh well to determine the analysis of pumping-unit workdone graphic and the managerial experiences of oil well,
Diagnostic result accuracy is not high, can only nose into situation when situation complexity by extracting all underground sucker rods and oil pipe out, but should
Method is easy to cause misjudgment or the unnecessary test jobs expense of investment, and seldom exist can directly detect underground other
It is difficult to be not only due to downhole instrument power supply for the measuring device of data, also as underground signal transmission is difficult.Patent network discloses
" a kind of fluid-duct-system to be generated electricity using piezo technology " (application number: 201510039957.1) device of this power generation can be with
It realizes that the kinetic energy for generating fluid flowing is converted into electric energy, but is not useful in the environment of oil pumping in oil fields, because of pumpingh well
Pumping pipelines in have sucker rod, sucker rod not can rotate." a kind of underground ropeless testing system for oil well " that patent network is announced
(application number: wireless signal directly 201210154062.9) is sent to earth's surface from the oil well under several kms, is easy by oil liquid, pipe
Road, the weakening of soil etc., so that the effect of wireless transmission is undesirable；" a kind of data for downhole communication that patent network is announced
Transmitting device and method " (application number: 201110171527.7) disclosing a kind of method of underground wireless communication, but without very
Specific structure, also without providing the solution of power supply；" a kind of underground micro energy lose remote-wireless data that patent network is announced
(application number: 201320685866.1), which provides a kind of method of wireless telecommunications to transmitting device ", still
The solution of power supply is not provided；In addition to this direct payout is also had tried to down, using wireline cable mode, due to
In well harsh environments (temperature: 125 degree of highest, minimum ten several years；Pressure: 60MPa；Corrosivity: saturated brine
), not only long-distance cable transmission cost is very high, but also durability and the reliability of work are more difficult to get guarantee, in oil pumping process
Middle electric wire is easily pulled off, while can also interfere with well-repairing work after being routed.
Summary of the invention
The purpose of the present invention is: it overcomes the deficiencies of the prior art and provide the measurement of pumping unit oil well underground signal and is passed with wireless
Device self-powered may be implemented in defeated system, and structure is simple, easy for installation, adaptable, solves existing in the prior art
It is at high cost and the problem of difficulty of construction is big, different work can be adapted to using different mounting means according to different well depths
Environment.
Measuring device of the invention is mounted between two section sucker rods, it is characterised in that: and the present invention is by pipe nipple, sensor,
The inside power generator shell being fixed on inside pipe nipple, the rubber closure for preventing extraneous oil liquid from entering, is mounted on inside
Power generator interior of shell is used for the upper capping of waterproof, the battery being fixed in capping, the flexibility being fixed in capping
Printed circuit board is mounted on internal power generator interior of shell for separating the middle capping of two chambers, piezoelectric patches and vibrating body group
It is formed at generating body and lower capping, wherein one end of six piezoelectric patches and internal power generator shell, middle capping or lower capping
Fixed, fixed form is to be bolted, and lower capping is fixed by screws in internal power generator shell for waterproof to be isolated, and is covered
It is all connected by screw to internal power generator shell, has all added rubber seal for preventing extraneous liquid around capping up and down
Body enters, and rubber seal can be to be fixed in capping in advance, can also be fixed again during installation, generating body is by pressing
Electric piece and vibrating body composition are connected with the piezoelectric patches of serpentine on each face of vibrating body, pumping unit in up-down stroke movement,
Vibrating body movement is driven, then is vibrated by vibrating body and drives piezoelectric patches vibrating power-generation；When wherein a piece of piezoelectric patches is squeezed,
Piezoelectric patches on the other side is in unstressed state, and all piezoelectric patches all elongate or shorten to some extent, to make to press
The stress alternation of electric piece changes and converts mechanical energy into electric energy, and electric energy is passed to flexible printed circuit board, flexibility print by conducting wire
In printed circuit board there is regulator rectifier circuit, management of charging and discharging circuit the electric current of alternation can be converted to direct current and be filled with battery
In, sensor can be replaced according to test request, and corresponding transducing signal amplification, conditioning are changed in flexible printed circuit board
Circuit by storage battery power supply, and stores data in the memory of flexible printed circuit board, on flexible printed circuit board also
The collected signal of sensor can be passed through wireless side by signal processing circuit, wireless signal transmitting and wireless relay circuit
Formula is launched, and also can receive the relaying that wireless signal carries out signal.
Further, piezoelectric patches is bonded by basis material and Kynoar PVDF polymeric membrane (piezoelectric membrane).
Further, flexible printed circuit board is flexible, and can roll plug in internal power generator housings.
Further, there is the circuit for storing and reading for data on the flexible print circuit, may be implemented to sensing
The storage of the collected information of device and the ability for allowing host computer to read.
Further, the installation site of signal measurement and radio transmitting device need according to different well depth and subsurface environment come
Comprehensively consider, if only needing to measure the data of bottommost, the present apparatus can install one every a certain distance, the dress of bottom
Set for emit/receive wireless signal, remaining is used for wireless relay, and wireless signal is allowed to cover ground and entire oil pumping
Well.
Further, the data of designated depth in oil well are if desired measured, each signal measurement and radio transmitting device were both
It is to relay that the data that the sensor of oneself position detects can also be emitted, by other signal measurements received and wirelessly
Launch after the data amplification that transmitting device is sent.
The present invention has the advantages that 1, self-powered can be passed through in the case where traditional cable type powers the pumpingh well that is difficult to realize
Realize the detection of subsurface environment parameter, while the invention relative to used underground survey device, having need not be every a period of time
The advantages of with regard to battery of replacement；2, due to being directly to measure temperature in underground, accuracy is higher, and structure is simply not
Needing to do existing sucker rod change can be used；3, different sensors can be replaced according to different test conditions, it can
It is corrosion-resistant to be hardly damaged to be the temperature sensor of armor, it can be liquid-pressure pick-up, for estimating in pumping unit
Fluid pressure condition can be ultrasonic sensor, for estimating the aqueous situation in crude oil, realize underground varying environment parameter
Volume measurement；4, it solves the signal measurement of different depth under oil well by way of wireless relay, realizes raw under rod-pumped well
The untethered direct reading test for producing data, solves the problems, such as that existing in the prior art at high cost and difficulty of construction is big.
Detailed description of the invention
Fig. 1 is the principle of the present invention schematic diagram.
Fig. 2 is the present invention in a kind of arrangement schematic diagram in underground.
Fig. 3 is layout drawing of the measuring device on sucker rod.
Fig. 4 is the explosive view of measuring device assembly.
Fig. 5 is the cross-sectional view of measuring device.
Fig. 6 is generating body schematic diagram in measuring device.
Figure middle sleeve 1, insulating centralizer 2, oil pipe 3, sucker rod 4, signal measurement and radio transmitting device 501, ground without
Line reception/emitter 502, pipe nipple 51, lower capping 52, internal power generator shell 53, generating body 54, middle capping 55 are flexible
Printed circuit board 56, battery 57, upper capping 58, sensor 59, rubber closure 510, box cupling 6.
Specific embodiment
As shown in Figure 1, pumpingh well is by casing 1, insulating centralizer 2, the composition of oil pipe 3, wherein sucker rod 4 is among oil pipe 3
Movement.Signal measurement and radio transmitting device 501 are by pipe nipple 51, lower capping 52, internal power generator shell 53, generating body 54,
Middle capping 55, flexible printed circuit board 56, battery 57, upper capping 58, sensor 59, rubber closure 510 forms, existing
Sucker rod is generally connected by box cupling 6, and signal measurement and radio transmitting device 501 can replace box cupling 6, in the position of required measurement
It sets, box cupling 6 is substituted for signal measurement and radio transmitting device 501, the peace of pipe nipple 51 of signal measurement and radio transmitting device 501
For substituting the effect of box cupling 6 between two sucker rods, the both ends of pipe nipple 51 are both provided with internal screw thread, can and sucker rod
The external screw thread at end cooperates,
As shown in Fig. 2, sucker rod is to be formed by connecting by single pony rod by box cupling 6, pipe nipple 51 is mounted on two short oil pumping
Between bar, there is pipe nipple 51 internal screw thread can cooperate with sucker rod, box cupling 6 can be replaced for connecting oil pumping in required depth
Bar 4, remaining part still use box cupling 6 to connect.
As shown in Fig. 3 and Fig. 4 and Fig. 5, fixed sensor 59, inside are mounted with internal power generator on pipe nipple 51, lead to
It crosses rubber closure 510 to be fixed on inside pipe nipple 51, lower capping 52 is connected by bolt and internal power generator shell 53, power generation
Piezoelectric patches is fixed on internal 53 inner wall of power generator shell by bolt by body 54, lower to cover in 52 and middle capping 55, middle capping
55 are bolted on internal 53 inner wall of power generator shell, and flexible printed circuit board 56 is fixed on middle capping by marine glue
55 and internal 53 inner wall of power generator shell on, be made into after each electrode extraction wire of piezoelectric patches on generating body connector with it is soft
Property printed circuit board 56 on connector connection, battery 57 connects also by another connector and flexible printed circuit board 56
It connects, the electric energy that generating body 54 generates is stored in battery 57, battery 57 and sensor after converting by flexible printed circuit board 56
59 connections, for powering to sensor 59.
When work when pumping unit, sucker rod speed is changing always in the process of movement.This measuring device passes through pipe nipple
51 connect with upper and lower two sucker rods 4, and pipe nipple 51 substitutes the effect of box cupling 6.Sucker rod generates vibration during exercise, drives power generation
Body 54 moves, to make the piezoelectric patches vibrating power-generation being connected on generating body 54, the material of piezoelectric patches is Kynoar PVDF
Polymeric membrane (piezoelectric membrane), piezoelectric patches is made of piezoelectric membrane and matrix, and piezoelectric membrane is bonded in basis material by glue
On, piezoelectric patches vibration generates the flexible printed circuit board 56 that charge is passed in upper cavity, has charge on flexible printed circuit board 56
Collecting circuit, flexible printed circuit board 56 are connected with battery 57, and the charge of generation is filled with battery 57, battery 57 with
It is fixed on sensor 59 on pipe nipple 51 to be connected, and electric energy needed for proposing its work, the signal wire of sensor 59 access flexible circuit
Plate 18.Water-proofing treatment is all carried out in entire cavity, and rubber closure 510 beyond the Great Wall, the place of being bolted all carry out waterproof measure, prevented
Only extraneous crude oil, water etc. enter
As shown in fig. 6, the generating body 54 is made of piezoelectric patches and vibrating body, vibrating body is connected with serpentine on each face
Piezoelectric patches, pumping unit up-down stroke movement in, drive vibrating body movement, then by vibrating body vibration drive piezoelectric patches vibrate
Power generation.When wherein a piece of piezoelectric patches is squeezed, piezoelectric patches on the other side is in unstressed state, all piezoelectric patches
It all elongates or shortens to some extent, to make the stress alternation of piezoelectric patches change and convert mechanical energy into electric energy, electric energy is logical
It crosses conducting wire and is passed to flexible printed circuit board 56, there is regulator rectifier circuit, management of charging and discharging circuit in flexible printed circuit board 56
The electric current of alternation can be converted to direct current to be filled in battery 57, sensor 59 can be replaced according to test request, flexibility print
It is changed to corresponding transducing signal amplification, conditioning circuit in printed circuit board 56, is powered by battery 57, and store data in
In the memory of flexible printed circuit board 56, there are also signal processing circuit, wireless signal transmitting and nothings on flexible printed circuit board 56
The collected signal of sensor 59 can wirelessly be launched, also can receive wireless communication by line repeat circuit
Number carry out signal relaying.
Pipe nipple 51 described in this embodiment will have enough intensity, use good structural carbon steel for raw material manufacture
It forms, has and be not easy to get rusty, uncorruptible feature, shape and box cupling 6 are similar, and both ends are internal screw thread, box cupling 6 can be replaced to mark
Quasi- part.
The piezoelectric patches is made of piezoelectric membrane and matrix, and piezoelectric membrane is bonded on basis material by glue, hair
Electric body 54 can be to be directly obtained by 3D printing.
The conversion circuit is printed on flexible printed circuit board 56, the electricity that piezoelectric patches on generating body 54 can be generated
Lotus collects and is filled with battery 57.The inside power generator shell 53 is fixed on immovable in pipe nipple 51, makes
It obtains generating body 54 and obtains maximum vibration, reduce internal power generator shell 53 and vibrate bring loss, while reducing shell and shaking
The dynamic damage to internal component.
The wireless transmission is Zigbee protocol, and ZigBee is the low-power consumption local area network based on IEEE802.15.4 standard
Agreement.It is provided according to international standard, ZigBee technology is a kind of short distance, low-power consumption, highly reliable wireless data sending network, similar
In CDMA and GSM network.ZigBee digital transmission module is similar to mobile network base station.Communication distance from the 75m of standard to several hundred rice,
Several kilometers, and support infinite expanding.
The sensor 59 can be the temperature sensor of armor, corrosion-resistant to be hardly damaged, and be firmly secured at
On pipe nipple and waterproof and oilproof processing is carried out, so that pipe nipple has preferable leakproofness.
The installation site needs of the present apparatus comprehensively consider according to different well depth and subsurface environment, if only needing to measure most
The data of bottom, the present apparatus can install one every a certain distance, and the device of bottom is used to emit wireless signal, remaining
Be used for wireless relay so that wireless signal from level to level force transfer to ground be received device reception.
If desired the data of designated depth in oil well are measured, each relays the sensing that can also emit oneself position
The data that device detects, the signal measurement and radio transmitting device new as one, other signal measurements and nothing that will be received
Launch after the data amplification that line transmitting device is sent.
In another embodiment, the sensor 59 can also be liquid-pressure pick-up, for estimating pumping unit
In fluid pressure condition.
In another embodiment, the sensor 59 can also be ultrasonic sensor, for estimating in crude oil
Aqueous situation.
In the present invention, using sucker rod and oil liquid relative motion, mechanical energy is converted to electric energy, pumpingh well may be implemented
Under confession electrical measurement.
Specific implementation example described herein only illustrates that spirit of the invention.Technology belonging to the present invention
The technical staff in field can do various modifications or additions to described specific implementation example or use similar side
Formula substitution, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (8)
1. signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect, including pipe nipple, have on pipe nipple outer
Screw thread, can be with the screw-internal thread fit of sucker rod；It is characterized by: by several signal measurements and radio transmitting device and ground
Wireless transmission/reception device composition, signal measurement and radio transmitting device are by pipe nipple, rubber closure, sensor, inside power generation
Crust of the device, upper capping, battery, flexible printed circuit board, middle capping, generating body, lower capping form, outside internal power generator
Shell and pipe nipple be it is separately manufactured, inside power generator shell is fixed on inside pipe nipple when installation, all solid in upper capping, lower capping
Be scheduled on internal power generator interior of shell, flexible printed circuit board, battery are fixed in middle capping, generating body by piezoelectric patches and
Vibrating body composition, wherein one end of six piezoelectric patches and internal power generator shell, middle capping or lower capping are fixed, vibrating body is gathered around
There is certain quality, so that sucker rod can drive piezoelectric patches to vibrate during moving up and down；It is driven on sucker rod in pumping unit
Electric energy a part of kinetic energy can be converted to during lower movement to be stored in battery to the sensor confession being located in pipe nipple
Electricity, piezoelectric patches are bonded by basis material and Kynoar PVDF polymeric membrane (piezoelectric membrane), flexible printed circuit board
Upper also signal processing circuit, wireless signal transmitting and wireless relay circuit, can pass through nothing for the collected signal of sensor
The mode of line is launched, and also can receive the relaying that wireless signal carries out signal, the terrestrial wireless transmitting on ground/reception dress
It sets the signal that can receive from signal measurement and radio transmitting device and sends signal.
2. signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect as described in claim 1,
Be characterized in that: flexible printed circuit board is flexible, and can roll plug in internal power generator housings.
3. signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect as claimed in claim 2,
It is characterized in that: having the circuit for storing and reading for data on flexible print circuit, may be implemented to the collected letter of sensor
The storage of breath and the ability for allowing host computer to read.
4. signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect as described in claim 1,
Be characterized in that: the pipe nipple other end closed at one end is closed by rubber closure, while fixed around upper capping, lower capping.
5. signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect as described in claim 1,
Be characterized in that: having the aperture for fixing sensor on pipe nipple, sensor be fixed in aperture and have one outside pipe nipple.
6. signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect as described in claim 1,
Be characterized in that: sensor can be the temperature sensor, liquid-pressure pick-up, ultrasonic sensor of armor.
7. signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect as described in claim 1,
Be characterized in that: signal measurement needs to be examined according to different well depth and subsurface environment to integrate from the installation site of radio transmitting device
Consider, if only needing to measure the data of bottommost, the present apparatus can install one every a certain distance, and the device of bottom is used for
Transmitting/reception wireless signal, remaining is used for wireless relay, wireless signal is allowed to cover ground and entire pumpingh well.
8. signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect as described in claim 1,
It is characterized in that: if desired measuring the data of designated depth in oil well, each signal measurement and radio transmitting device are both relaying
The data that the sensor of oneself position detects can also be emitted, other signal measurements received and wireless transmission are filled
Launch after setting the data amplification of transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266529.2A CN109057778A (en) | 2018-10-29 | 2018-10-29 | Signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266529.2A CN109057778A (en) | 2018-10-29 | 2018-10-29 | Signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect |
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| Publication Number | Publication Date |
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| CN109057778A true CN109057778A (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811266529.2A Withdrawn CN109057778A (en) | 2018-10-29 | 2018-10-29 | Signal measurement and wireless transmitting system under a kind of rod-pumped well based on piezoelectric effect |
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| Country | Link |
|---|---|
| CN (1) | CN109057778A (en) |
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2018
- 2018-10-29 CN CN201811266529.2A patent/CN109057778A/en not_active Withdrawn
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Application publication date: 20181221 |