CN205823269U - A kind of Multifunctional oil-well liquid level automatic monitoring device - Google Patents
A kind of Multifunctional oil-well liquid level automatic monitoring device Download PDFInfo
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- CN205823269U CN205823269U CN201620707539.5U CN201620707539U CN205823269U CN 205823269 U CN205823269 U CN 205823269U CN 201620707539 U CN201620707539 U CN 201620707539U CN 205823269 U CN205823269 U CN 205823269U
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Abstract
A kind of Multifunctional oil-well liquid level automatic monitoring device belongs to petroleum production engineering oil recovery, production gas technology field, particularly relates to a kind of Multifunctional oil-well liquid level automatic monitoring device.This utility model provides a kind of Multifunctional oil-well liquid level automatic monitoring device easy to use, applied widely.This utility model includes anti-explosion box body, is provided with oil well casing joint outside its structural feature anti-explosion box body, and oil well casing joint rear end removably connects with the switching cavity outer end on anti-explosion box body；Switching cavity outer end is placed in outside anti-explosion box body, and the inner is placed in inside anti-explosion box body；Switching cavity the inner connects mike, the first pressure transducer, outlet pipe one end, air inlet pipeline one end, and switching cavity outer lower end connects automatic voltage regulation adjusting means；The outlet pipe other end is connected with unidirectional threeway entrance by venting pulse control valve, and unidirectional threeway first is exported and is connected with the deafener on anti-explosion box body lateral wall by slow release damper tube, and unidirectional threeway second exports and is connected with compressor inlet.
Description
Technical field
This utility model belongs to petroleum production engineering oil recovery, production gas technology field, particularly relates to a kind of Multifunctional oil-well liquid level certainly
Dynamic monitoring device.
Background technology
In the current low oil price epoch, it is desirable to oil play must improve production efficiency, constantly reduces human cost, drops this increasing
Effect.Well fluid level is an important oil well running parameter, needs every day substantial amounts of manpower and materials to carry out oil well manually
Level is tested.Along with becoming increasingly popular of digitized oilfield construction, in the urgent need to a kind of liquid level that can be suitable for various hole condition
ATE, gradually reduces manual intervention, is truly realized operation automatically.While realizing level monitoring, it is possible to
Complete some other miscellaneous functions.Such as: change according to borehole pressure, inside and outside quick-fried test mode is automatically changed；Automatically oil is kept
Well casing pressure is stable, can automatically bleed off pressure after pressure is higher than setting value；Winter can heat automatically；There is the explosion-proof merit of anti-theft rain-proof
Energy；Have and prevent the functions such as clean-out service profit pours in down a chimney.Although also applying some of such product on oil well the most at home, but
It is all to there is many limitation, it is impossible to meet on-the-spot complicated hole condition demand well.Mainly include the following aspects.
1, can not automatically be suitable for without pressure, low pressure, the change of high pressure multiple hole condition.
2, explosion-proof rain-proof anti-theft measure is the most complete.
3, automatic constant-temperature-heating in winter can not be accomplished.
4, installation is more complicated, dismounting inconvenience.
5, fault rate is high, and stable equipment operation is poor, and cost performance is the highest.
6, measuring accuracy does not reaches requirement.
7, do not possesses automatic stabilisation oil well casing pressure function.
8, the operation such as well-flushing, injection easily causes instrument damage.
Summary of the invention
This utility model is aiming at the problems referred to above, it is provided that a kind of Multifunctional oil-well liquid easy to use, applied widely
Face automated watch-keeping facility.
For achieving the above object, this utility model adopts the following technical scheme that, this utility model includes anti-explosion box body, its knot
Oil well casing joint it is provided with, outside oil well casing joint rear end is with the switching cavity on anti-explosion box body outside structure anti-explosion box body to be put
End removably connects；
Switching cavity outer end is placed in outside anti-explosion box body, and the inner is placed in inside anti-explosion box body；Switching cavity the inner connects micro-
Sound device, the first pressure transducer, outlet pipe one end, air inlet pipeline one end, switching cavity outer lower end connects has automatic voltage regulation to adjust
Regulating device；The outlet pipe other end is connected with unidirectional threeway entrance by venting pulse control valve, and unidirectional threeway first exports logical
Crossing slow release damper tube to be connected with the deafener on anti-explosion box body lateral wall, unidirectional threeway second exports and compressor inlet phase
Even, compressor outlet is connected with air accumulator air inlet by compression conduit, and the gas outlet of air accumulator is controlled by suction pulsation
Valve is connected with switching cavity the inner.
Described microphonic signal output port, the first pressure transducer signal output port respectively with the letter of controller
Number input port is connected, the control signal output port of controller respectively with the control signal input of suction pulsation control valve
Mouth, the control signal input port of the control signal input port of pulse control valve of giving vent to anger, compressor are connected, the power supply of controller
End is connected with power supply；
Described controller, power supply, mike, the first pressure transducer, outlet pipe, air inlet pipeline, venting Pulse Width Control
Valve, unidirectional threeway, slow release damper tube, compressor, compression conduit, air accumulator, suction pulsation control valve are arranged at described explosion-proof
In casing.
Described built in gas tank is equipped with the second pressure transducer, the signal output port of the second pressure transducer and controller
Signal input port be connected.
As a kind of preferred version, oil well casing joint rear end described in the utility model is provided with attaching nut, connects spiral shell
Mother is threadeded with switching cavity outer end.
As another kind of preferred version, oil well casing joint described in the utility model is uniformly provided with four installing technological holes,
Four attaching nut's installing holes it are uniformly provided with on the circumferential outer surface of attaching nut.
As another kind of preferred version, switching cavity the inner described in the utility model connects microphony by mike adaptor
Device, mike adaptor horizontal one end connector is connected with switching cavity, mike adaptor upper end connector and vertical microphony
Device lower inlet is connected.
As another kind of preferred version, outlet pipe described in the utility model is placed at switching cavity inner port and was provided with
Filter screen.
Gas is used as another kind of preferred version, venting pulse control valve described in the utility model and suction pulsation control valve
Body electromagnetic valve.
As another kind of preferred version, in anti-explosion box body described in the utility model, it is provided with semiconductor ceramic heater and temperature
Control device, semiconductor ceramic heater is connected with temperature controller, and the power end of temperature controller is connected with power supply.
As another kind of preferred version, anti-explosion box body lateral wall described in the utility model is provided with anti-explosion terminal box and electricity
Cable EX PACKING GLAND, anti-explosion terminal box is connected with described power supply by cable explosion-proof seal nipple.
As another kind of preferred version, the upper cover of anti-explosion box body described in the utility model is equipped with anti-theft steel wire lead sealing.
Secondly, automatic voltage regulation adjusting means described in the utility model includes that voltage stabilizing cavity, voltage stabilizing cavity lower end are with described
Switching cavity be connected air inlet, side, voltage stabilizing cavity upper end is gas outlet, be provided with in pressure stabilizing cavity body can vertically activity close
Envelope piston, seals piston upper end and connects lower spring end, and a set screw passes spring, and set screw upper end is provided with regulation and connects
Nut, regulation attaching nut lower end offsets with spring upper end, and set screw periphery is covered with protective cap.
It addition, controller described in the utility model includes sixteen bit microprocessor, filter circuit, gain amplifier section, A/D
Conversion portion, gain control section, pressure amplifying circuit, pressure amplify A/D conversion portion, data storage and wireless communication section
Point, described microphonic signal output port passes sequentially through filter circuit, gain amplifier section, A/D conversion portion and sixteen bit
The signal input port of microprocessor be connected, the control signal output port of sixteen bit microprocessor by gain control section with
The gain control port of gain amplifier section is connected；First pressure transducer and the second pressure transducer pass sequentially through pressure and amplify
Circuit, pressure amplify A/D conversion portion and are connected with the signal input port of sixteen bit microprocessor；The letter of sixteen bit microprocessor
Number transmission port be connected with the signal transmission port of data storage；The signal output port of sixteen bit microprocessor is by wireless
Communication part is connected with the antenna on anti-explosion box body outer wall.
This utility model beneficial effect.
This utility model uses the casing gas of self in well to measure down-hole producing fluid level, can according to borehole pressure height,
Conversion implosion and outer quick-fried two kinds of test patterns；Automatic voltage regulation can also can be monitored by casing pressure in pressure transducer testing well
The voltage regulation result of adjusting means.
Parts needed for test are arranged in anti-explosion box body by this utility model, carry out flame proof process.
This utility model oil well casing joint rear end removably connects with the switching cavity outer end on anti-explosion box body；Convenient existing
Field installing/dismounting.
This utility model automatic voltage regulation adjusting means can bleed off many overbottom pressure automatically according to the pressure threshold being previously set
Power, it is ensured that stablizing of down-hole producing fluid level.
This utility model may utilize the casing gas in oil well to produce the sound wave needed for test, safety and environmental protection.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described further below in conjunction with the accompanying drawings.This utility model protection domain
It is not only limited to the statement of herein below.
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model schematic block circuit diagram.
Fig. 3 is this utility model automatic voltage regulation adjusting means structural representation.
Fig. 4 is this utility model mike adaptor structural representation.
In figure, 1 it is oil well casing joint, 2 is installing technological hole, 3 is attaching nut, 4 is attaching nut's installing hole, 5 is
Drainage screen, 6 for switching cavity, 7 be mike adaptor, 8 for mike, 9 for outlet pipe, 10 for exit pulse control valve,
11 be semiconductor ceramic heater, 12 for temperature controller, 13 for unidirectional threeway, 14 for slow release damper tube, 15 for anti-theft steel wire lead sealing,
16 it is deafener, 17 is anti-explosion terminal box, 18 is cable explosion-proof seal nipple, 19 is antenna, 20 is power supply, 21 leads for pressurization
Pipe, 22 be compressor, 23 for air accumulator, 24 for controller, 25 for suction pulsation control valve, 26 for air inlet pipeline, 27 be signal
Line, 28 be the first pressure transducer, 29 be automatic voltage regulation adjusting means, 31 be anti-explosion box body, 32 be air inlet, 33 for giving vent to anger
Mouthful, 34 for seal piston, 35 be spring, 36 for regulation attaching nut, 37 for set screw, 38 be protective cap.
Detailed description of the invention
As it can be seen, this utility model includes anti-explosion box body 31, outside anti-explosion box body 31, it is provided with oil well casing joint 1,
Oil well casing joint 1 rear end removably connects with switching cavity 6 outer end on anti-explosion box body 31.
Switching cavity 6 outer end is placed in outside anti-explosion box body 31, and the inner is placed in inside anti-explosion box body 31；Switching cavity 6 is inner
Connecting mike the 8, first pressure transducer 28, outlet pipe 9 one end, air inlet pipeline 26 one end, switching cavity 6 outer lower end connects
There is automatic voltage regulation adjusting means 29；Outlet pipe 9 other end is connected with unidirectional threeway 13 entrance by venting pulse control valve 10,
Unidirectional threeway 13 first outlet is connected with the deafener 16 on anti-explosion box body 31 lateral wall by slow release damper tube 14, unidirectional threeway
13 second outlets are connected with compressor 22 air inlet 32, and compressor 22 gas outlet 33 is by compression conduit 21 and air accumulator 23 air inlet
Mouth 32 is connected, and the gas outlet 33 of air accumulator 23 is connected with switching cavity 6 the inner by suction pulsation control valve 25.
The signal output port of described mike 8, the first pressure transducer 28 signal output port respectively with controller
The signal input port of 24 is connected, and the control signal output port of controller 24 is believed with the control of suction pulsation control valve 25 respectively
Number input port, the control signal input port of pulse control valve of giving vent to anger, the control signal input port of compressor 22 are connected, control
The power end of device 24 processed is connected with power supply 20.
Described controller 24, power supply 20, mike the 8, first pressure transducer 28, outlet pipe 9, air inlet pipeline 26, put
Gas pulse control valve 10, unidirectional threeway 13, slow release damper tube 14, compressor 22, compression conduit 21, air accumulator 23, suction pulsation
Control valve 25 is arranged in described anti-explosion box body 31.
The second pressure transducer, the signal output port of the second pressure transducer and control it is provided with in described air accumulator 23
The signal input port of device 24 is connected.
Described compressor 22 can use miniature oilless (oil free) compressor, and miniature oilless (oil free) compressor passes through power line and power supply 20 phase
Even.
When oil well pressure is higher, implosion test can produce bigger pneumatic noise, for abating the noise, and can be in deafener 16
Portion arranges flame proof steel wire, and uniform two groups of four the 2mm apertures in side, the internal diameter size of the slow release damper tube 14 being attached thereto can be
3mm。
Described oil well casing joint 1 rear end is provided with attaching nut 3, and attaching nut 3 is with switching cavity 6 outer end screw thread even
Connect.
Described oil well casing joint 1 is uniformly provided with four installing technological holes 2, on the circumferential outer surface of attaching nut 3 uniformly
It is provided with four attaching nut's installing holes 4.Joint that this utility model is naked to be exposed on the external, attaching nut 3, casing are all provided with needs
The fabrication hole of specific purpose tool dismounting, fabrication hole can be diameter 8 millimeters, the metal blind hole of deep 6 millimeters.Do not have specific purpose tool to hook to pull
Hands, it is impossible to pull down any parts of device.
Described switching cavity 6 is inner connects mike 8 by mike adaptor 7, and the horizontal one end of mike adaptor 7 is even
Interface is connected with switching cavity 6, and mike adaptor 7 upper end connector is connected with vertical mike 8 lower inlet.Mike 8
It is arranged on vertically downward on mike adaptor 7.Guarantee that once oil well oil-water pours in down a chimney, it is impossible to have influence on acoustic receiver device.
Described outlet pipe 9 is placed at switching cavity 6 inner port and is provided with drainage screen 5.Drainage screen 5 can prevent dirt in oil
Enter escape pipe.
Described venting pulse control valve 10 and suction pulsation control valve 25 use gas solenoid valve.
Semiconductor ceramic heater 11 and temperature controller 12, semiconductor ceramic heater 11 it is provided with in described anti-explosion box body 31
Being connected with temperature controller 12, the power end of temperature controller 12 is connected with power supply 20.Arranging temperature controller 12, winter can automatic constant-temperature-heating.
When temperature is less than zero degree, can start semiconductive ceramic heating, temperature is higher than 5 degree, can stop heating；Save energy and reduce the cost to greatest extent.
It is provided with anti-explosion terminal box 17 and cable explosion-proof seal nipple 18, explosion-proof wiring on described anti-explosion box body 31 lateral wall
Box 17 is connected with described power supply 20 by cable explosion-proof seal nipple 18.
The upper cover of described anti-explosion box body 31 is equipped with anti-theft steel wire lead sealing 15.
Described automatic voltage regulation adjusting means 29 includes that voltage stabilizing cavity, voltage stabilizing cavity lower end are to be connected with described switching cavity 6
Air inlet 32, side, voltage stabilizing cavity upper end is gas outlet 33, be provided with in pressure stabilizing cavity body can be vertically movable sealing piston 34,
Sealing piston 34 upper end and connect spring 35 lower end, a set screw 37 is through spring 35, and set screw 37 upper end is provided with regulation
Attaching nut 36, and regulation attaching nut 36 lower end offsets with spring 35 upper end, and set screw 37 periphery is covered with protective cap 38.Automatically
Constant voltage regulating device 29 is communicated with oil well annular space by switching cavity 6, and in well, bleed pressure acts on automatic voltage regulation adjusting means
On the piston of 29, when borehole pressure exceedes the safety value determined by spring 35 power, piston is backed down, and in a part of well, gas is i.e.
Discharge from gas outlet 33；When borehole pressure is less than safety value, spring 35 drives piston to move down, and closes gas outlet 33.By adjusting
Joint attaching nut 36 regulates the decrement of spring 35 can set borehole pressure safety value easily.
Described controller 24 includes sixteen bit microprocessor, filter circuit, gain amplifier section, A/D conversion portion, gain
Control part, pressure amplifying circuit, pressure amplify A/D conversion portion, data storage and communicating portion, described mike
The signal output port of 8 passes sequentially through the letter of filter circuit, gain amplifier section, A/D conversion portion and sixteen bit microprocessor
Number input port is connected, and the control signal output port of sixteen bit microprocessor is by gain control section and gain amplifier section
Gain control port be connected；First pressure transducer 28 and the second pressure transducer pass sequentially through pressure amplifying circuit, pressure
Amplify A/D conversion portion to be connected with the signal input port of sixteen bit microprocessor；The signal transmission ends of sixteen bit microprocessor
Mouth is connected with the signal transmission port of data storage；The signal output port of sixteen bit microprocessor passes through communicating portion
It is connected with the antenna 19 on anti-explosion box body 31 outer wall.
Wireless communication section can use WIFI, ZIGBEE, GPRS, 3G or 4G various ways；Wired 485 communications can be provided simultaneously
Interface.The result data of test is wirelessly transferred, and cloud platform intensive data processes.Utilize long distance control system can understand well at any time
Bottom pressure situation of change.
Work process of the present utility model is described below in conjunction with the accompanying drawings.
After receiving test assignment by wireless telecommunications, first judged oil gas borehole pressure by pressure transducer 28, work as well
When inside there is no pressure, need outer quick-fried generation sound wave, be first turned on pulse control valve 10 of exitting, be compressor by unidirectional threeway 13
22 provide inlet air source, then start compressor 22, air accumulator 23 is pressurizeed, after pressure reaches setting value, open into
Gas pulse control valve 25, is released quickly against the compressed gas in air storage chamber in oil well casing.The gas in annular space at well head
Moment is compressed, and produces compression shock ripple.This is outer quick-fried pattern.
When there being enough pressure in well, can directly use implosion sound wave, the most directly open venting pulse control valve 10, will
Gas in oil well casing passes through slow release damper tube 14 and deafener 16, is released quickly against outside casing, now annular space at well head
In gas moment expand, produce expand shock wave.This is implosion pattern.
This compression or expansion shock wave are propagated along oil jacket annular space to down-hole, run into tubing coupling, phonetic symbol, gas-liquid interface generation
Reflected sound wave impulse, is received ping by mike 8 and is converted into the signal of telecommunication, carries out digital processing by controller 24, automatically counts
Calculate (the box cupling method specified according to oil and gas industry standard " oil well liquid level method of testing " and phonetic symbol method) and go out level.Survey
The result of examination and test curve, by wireless communication modes such as GPRS/wifi/4G, are transmitted directly to operator.
It is understood that above with respect to specific descriptions of the present utility model, be merely to illustrate this utility model and not
It is limited to the technical scheme described by this utility model embodiment, it will be understood by those within the art that, the most permissible
This utility model is modified or equivalent, to reach identical technique effect；Needs are used, all in this reality as long as meeting
Within novel protection domain.
Claims (10)
1. a Multifunctional oil-well liquid level automatic monitoring device, including anti-explosion box body, it is characterised in that arrange outside anti-explosion box body
Oil well casing joint, oil well casing joint rear end is had to removably connect with the switching cavity outer end on anti-explosion box body；
Switching cavity outer end is placed in outside anti-explosion box body, and the inner is placed in inside anti-explosion box body；Switching cavity the inner connection mike,
First pressure transducer, outlet pipe one end, air inlet pipeline one end, switching cavity outer lower end connects automatic voltage regulation regulation dress
Put；The outlet pipe other end is connected with unidirectional threeway entrance by venting pulse control valve, and unidirectional threeway first exports by slow
Releasing damper tube to be connected with the deafener on anti-explosion box body lateral wall, unidirectional threeway second exports and is connected with compressor inlet, pressure
Contracting machine gas outlet is connected with air accumulator air inlet by compression conduit, and the gas outlet of air accumulator is by suction pulsation control valve and turns
Connect cavity the inner to be connected；
Described microphonic signal output port, the first pressure transducer signal output port defeated with the signal of controller respectively
Inbound port is connected, the control signal output port of controller respectively with the control signal input port of suction pulsation control valve, go out
The control signal input port of gas pulse control valve, compressor control signal input port be connected, the power end of controller with
Power supply is connected；
Described controller, power supply, mike, the first pressure transducer, outlet pipe, air inlet pipeline, venting pulse control valve, list
It is arranged at described anti-explosion box body to threeway, slow release damper tube, compressor, compression conduit, air accumulator, suction pulsation control valve
In；
Described built in gas tank is equipped with the second pressure transducer, the signal output port of the second pressure transducer and the letter of controller
Number input port is connected.
A kind of Multifunctional oil-well liquid level automatic monitoring device, it is characterised in that described oil well casing
Joint rear end is provided with attaching nut, and attaching nut is threadeded with switching cavity outer end.
A kind of Multifunctional oil-well liquid level automatic monitoring device, it is characterised in that described oil well casing
Joint is uniformly provided with four installing technological holes, and the circumferential outer surface of attaching nut is uniformly provided with four attaching nut's installing holes.
A kind of Multifunctional oil-well liquid level automatic monitoring device, it is characterised in that described switching cavity
Inner by mike adaptor connection mike, mike adaptor horizontal one end connector is connected with switching cavity, microphony
Device adaptor upper end connector is connected with vertical mike lower inlet.
A kind of Multifunctional oil-well liquid level automatic monitoring device, it is characterised in that described outlet pipe
It is placed at switching cavity inner port and is provided with drainage screen.
A kind of Multifunctional oil-well liquid level automatic monitoring device, it is characterised in that described anti-explosion box body
Inside being provided with semiconductor ceramic heater and temperature controller, semiconductor ceramic heater is connected with temperature controller, the power end of temperature controller
It is connected with power supply.
A kind of Multifunctional oil-well liquid level automatic monitoring device, it is characterised in that described anti-explosion box body
Being provided with anti-explosion terminal box and cable explosion-proof seal nipple on lateral wall, anti-explosion terminal box passes through cable explosion-proof seal nipple and institute
State power supply to be connected.
A kind of Multifunctional oil-well liquid level automatic monitoring device, it is characterised in that described anti-explosion box body
Upper cover equipped with anti-theft steel wire lead sealing.
A kind of Multifunctional oil-well liquid level automatic monitoring device, it is characterised in that described automatic voltage regulation
Adjusting means includes that voltage stabilizing cavity, voltage stabilizing cavity lower end are the air inlet being connected with described switching cavity, voltage stabilizing cavity upper end one
Side is gas outlet, be provided with in pressure stabilizing cavity body can be vertically movable sealing piston, seal piston upper end and connect lower spring end, one adjusts
Joint screw is through spring, and set screw upper end is provided with regulation attaching nut, and regulation attaching nut lower end offsets with spring upper end,
Set screw periphery is covered with protective cap.
A kind of Multifunctional oil-well liquid level automatic monitoring device, it is characterised in that described controller bag
Include sixteen bit microprocessor, filter circuit, gain amplifier section, A/D conversion portion, gain control section, pressure amplifying circuit,
Pressure amplifies A/D conversion portion, data storage and communicating portion, and described microphonic signal output port passes sequentially through
Filter circuit, gain amplifier section, A/D conversion portion are connected with the signal input port of sixteen bit microprocessor, and sixteen bit is micro-
The control signal output port of processor is connected with the gain control port of gain amplifier section by gain control section；First
Pressure transducer and the second pressure transducer pass sequentially through pressure amplifying circuit, pressure amplify A/D conversion portion micro-with sixteen bit
The signal input port of processor is connected；The signal transmission port of sixteen bit microprocessor and the signal transmission ends of data storage
Mouth is connected；The signal output port of sixteen bit microprocessor passes through communicating portion and the antenna phase on anti-explosion box body outer wall
Even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620707539.5U CN205823269U (en) | 2016-07-06 | 2016-07-06 | A kind of Multifunctional oil-well liquid level automatic monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620707539.5U CN205823269U (en) | 2016-07-06 | 2016-07-06 | A kind of Multifunctional oil-well liquid level automatic monitoring device |
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| CN205823269U true CN205823269U (en) | 2016-12-21 |
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ID=57564327
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| CN201620707539.5U Active CN205823269U (en) | 2016-07-06 | 2016-07-06 | A kind of Multifunctional oil-well liquid level automatic monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150125A (en) * | 2017-12-26 | 2018-06-12 | 贵州航天凯山石油仪器有限公司 | A kind of high-pressure well wellhead assembly and its method for generating sound source |
| CN113958311A (en) * | 2021-12-21 | 2022-01-21 | 沈阳新石科技有限公司 | Device and method for monitoring underground liquid level |
-
2016
- 2016-07-06 CN CN201620707539.5U patent/CN205823269U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150125A (en) * | 2017-12-26 | 2018-06-12 | 贵州航天凯山石油仪器有限公司 | A kind of high-pressure well wellhead assembly and its method for generating sound source |
| CN113958311A (en) * | 2021-12-21 | 2022-01-21 | 沈阳新石科技有限公司 | Device and method for monitoring underground liquid level |
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