CN106869906A - A kind of oil well liquid level automated watch-keeping facility, method and system - Google Patents
A kind of oil well liquid level automated watch-keeping facility, method and system Download PDFInfo
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- CN106869906A CN106869906A CN201710101557.8A CN201710101557A CN106869906A CN 106869906 A CN106869906 A CN 106869906A CN 201710101557 A CN201710101557 A CN 201710101557A CN 106869906 A CN106869906 A CN 106869906A
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- Prior art keywords
- pressure
- oil well
- shunt
- pressure test
- valve
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B47/14—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 using acoustic waves
Abstract
The invention discloses a kind of oil well liquid level automated watch-keeping facility, method and system.The device includes：Multiple well head harvesters, multiple switching valves, shunt and master controller, microphone is installed inside well head harvester, main pipeline and multiple output channels are provided with shunt, the connection and closing of output channel and well head harvester in switching valve control shunt, master controller controls the connection and closing of the output channel and well head harvester in shunt by controlling switching valve, the electric signal that master controller collection microphone is produced, and calculating is analyzed to electric signal, obtain the depth of oil well liquid level；Well head harvester is connected one to one with the output channel of shunt by the switching valve, and the main pipeline of shunt is connected with sound source sonification system.The oil well liquid level automated watch-keeping facility of present invention offer, method and system can be automatically tested the interface of oil and gas depth of various hole conditions, reduce artificial intervention, reduce cost.
Description
Technical field
The present invention relates to oil well liquid level monitoring field, more particularly to a kind of oil well liquid level automated watch-keeping facility, method and
System.
Background technology
In the current low oil price epoch, it is desirable to the necessary improve production efficiency of oil play, human cost is constantly reduced, drop this increasing
Effect.Oil-well level is an important oil well running parameter, at present, in petroleum production art, substantial amounts of people is needed daily
Power material resources carry out manual level test to oil well, and manpower and materials are caused with waste, run counter to improve production efficiency, drop
The requirement of low production cost.
The content of the invention
It is an object of the invention to provide a kind of oil well liquid level automated watch-keeping facility, method and system, can be to various hole conditions
Interface of oil and gas depth tested automatically, reduce artificial intervention, reduce cost.
To achieve the above object, the invention provides following scheme：
A kind of oil well liquid level automated watch-keeping facility, described device includes：
Multiple well head harvesters, are provided with microphone inside the well head harvester, the microphone is used to connect
The impulse wave for receiving is converted to electric signal；
Shunt, is provided with main pipeline and multiple output channels, the output channel and the supervisor in the shunt
Road is connected；
Multiple switching valves, the switching valve is used to control the output channel and the well head harvester in the shunt
Connection and closing；
Sound source sonification system, the sound source sonification system is used to produce impulse wave, the impulse wave to run into the well liquid
Face back reflection, the impulse wave of reflection is received by the microphone；
Master controller, the master controller is used to control the efferent duct in the shunt by controlling the switching valve
The connection and closing of road and the well head harvester, the master controller are additionally operable to gather the electricity that the microphone is produced
Signal, and calculating is analyzed to the electric signal, obtain the depth of oil well liquid level；
The well head harvester is connected one to one with the output channel of the shunt by the switching valve, described
The main pipeline of shunt is connected with sound source sonification system, the master controller respectively with the switching valve, well head harvester
Electrical connection.
Optionally, the monitoring device also includes：Pressure sensor, the pressure sensor is installed on the shunt
In main pipeline, the pressure sensor is electrically connected with the master controller.
Optionally, the sound source sonification system includes pressure test system, described to have pressure test system to include pressure test
Valve and pressure buffer chamber, it is described to there is pressure test valve one end to be connected with the main pipeline of the shunt, it is described to there is pressure to test valve
The other end is connected with the pressure buffer chamber, described to have pressure test valve to be electrically connected with the master controller.
Optionally, the sound source sonification system is described to include without pressure test system including without pressure test system：Pulse pump,
Air storage chamber, without pressure test valve and check valve, described pulse pump one end is connected with the main pipeline of the shunt, the pulse pump
The other end be connected with the air storage chamber, it is described without pressure test valve one end be connected with the air storage chamber, it is described without pressure test
The other end of valve is connected with the check valve, and the check valve is connected with the main pipeline of the shunt, described to be surveyed without pressure
Examination valve is electrically connected with the master controller, and by after the gas compression in the shunt, compressed gas pass through institute to the pulse pump
State air storage chamber, valve, check valve and shunt are tested without pressure, into oil well.
Optionally, it is described have pressure test system also include exhaust muffling device, described exhaust muffling device one end with it is described
Pressure buffer chamber is connected, and the exhaust muffling device other end has varying aperture by aperture and external communication, the aperture.
Optionally, it is connected by high pressure line between the well head harvester and the switching valve.
Optionally, the high pressure line is rubber hose of the internal diameter more than 10 millimeters.
Optionally, the air inlet pipe of the pulse pump is connected by the shunt with oil well casing annular space, the pulse
The gas compressed during pump work takes from oil well casing annular space.
Present invention also offers a kind of oil well liquid level automatic monitoring method, methods described includes：
Obtain the numbering of oil well to be tested；
Numbering according to the oil well opens the corresponding switching valve of the oil well；
Obtain the pressure value that pressure sensor is measured；
Judge the pressure value whether more than setting value；
If it is, control has pressure test valve to open；
If it is not, then control pulse pump work, and control to be opened without pressure test valve；
The pulse wave signal that microphone is measured is obtained, the pulse wave signal is that the gas exported by the pulse pump is produced
Impulse wave by the liquid level of the oil well reflection after impulse wave；
Calculating is analyzed to the pulse wave signal, the level of the oil well is obtained.
Present invention also offers a kind of oil well liquid level automatic monitoring system, the system includes：
Oil well numbered cell, the numbering for obtaining oil well to be tested；
Switching valve opening unit, for opening the corresponding switching valve of the oil well according to the numbering of the oil well；
Pressure value acquiring unit, for obtaining the pressure value that pressure sensor is measured；
Pressure value judging unit, for judging the pressure value whether more than setting value；
There is pressure test valve opening unit, for when the pressure value is more than setting value, then control to have pressure test valve to open；
Without pressure test valve opening unit, for when the pressure value is less than or equal to setting value, then controlling pulse pump work,
And control to be opened without pressure test valve；
Pulse wave signal acquiring unit, for obtaining the pulse wave signal that microphone is measured；
Oil-well level computing unit, for being analyzed calculating to the pulse wave signal, obtains the oil well
Level.
According to the specific embodiment that the present invention is provided, the invention discloses following technique effect：The present invention is by sound source
The setting of the components such as control, well head harvester, the switching valve of sonification system, realizes oil well liquid level and monitors automatically, saves
Manpower.And, the present invention is realized by a set of by setting multiple well head harvesters, multiple switching valves and a shunt
Master control system saves the portions such as multiple more complicated, relatively costly master control borads, sound wave sonification system to many mouthfuls of tests of oil well
Part.For a cluster well, each individually controlled by multiple equipment originally, be changed as by the centralized and unified control of a set of equipment
Pattern, reduces number of devices, reduces purchase cost.Additionally, the monitoring device that the present invention is provided has pressure to test and nothing
Pressure two passages of test, various hole conditions can be adapted to according to hole condition with automatic decision and selection test mode.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing for needing to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of embodiment of the present invention oil well liquid level automated watch-keeping facility；
Fig. 2 is embodiment of the present invention oil well liquid level automatic monitoring method schematic flow sheet；
Fig. 3 is embodiment of the present invention oil well liquid level automatic monitoring system structural representation.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It is an object of the invention to provide a kind of oil well liquid level automated watch-keeping facility, method and system, can be to various hole conditions
Interface of oil and gas depth tested automatically, reduce artificial intervention, reduce cost.
It is below in conjunction with the accompanying drawings and specific real to enable the above objects, features and advantages of the present invention more obvious understandable
The present invention is further detailed explanation to apply mode.
Fig. 1 is the structural representation of embodiment of the present invention oil well liquid level automated watch-keeping facility, as shown in figure 1, the device bag
Include：
Multiple well head harvesters 1, are provided with microphone 2 inside the well head harvester, the microphone is used for will
The impulse wave for receiving is converted to electric signal；
Shunt 7, is provided with main pipeline and multiple output channels, the output channel and the master in the shunt 7
Pipeline is connected；
Multiple switching valves 4, the switching valve 4 is used to control the output channel in the shunt 7 to be gathered with the well head
The connection and closing of device 1；
Sound source sonification system, the sound source sonification system is used to produce impulse wave, the impulse wave to run into the well liquid
Face back reflection, the impulse wave of reflection is received by the microphone 2；
Master controller 11, during the master controller 11 is used to control the shunt 7 by controlling the switching valve 4
The connection and closing of output channel and the well head harvester 1, the master controller 11 are additionally operable to gather the microphone 2 and produce
The raw electric signal, and calculating is analyzed to the electric signal, obtain the depth of oil well liquid level；
The well head harvester 1 is connected one to one with the output channel of the shunt 7 by the switching valve 4,
The main pipeline of the shunt 7 is connected with sound source sonification system, the master controller 11 respectively with the switching valve 4, well head
Harvester 1 is electrically connected.
The monitoring device also includes：Pressure sensor 6, the pressure sensor 6 is installed on the supervisor of the shunt 7
In road, the pressure sensor 6 is electrically connected with the master controller 11.
The sound source sonification system includes pressure test system, described to have pressure test system to include pressure test valve 8 and pressure
Power cushion chamber 10, it is described to there is pressure test one end of valve 8 to be connected with the main pipeline of the shunt 7, it is described to have the another of pressure test valve 8
One end is connected with the pressure buffer chamber 10, described to have pressure test valve 8 to be electrically connected with the master controller 11.
The sound source sonification system is also included without pressure test system, described to include without pressure test system：Pulse pump 16, gas storage
Room 14, without pressure test valve 9 and check valve 19, the one end of the pulse pump 16 is connected with the main pipeline of the shunt 7, the arteries and veins
The other end for rushing pump 16 is connected with the air storage chamber 14, described to be connected with the air storage chamber 14 without pressure test one end of valve 9, institute
State the other end without pressure test valve 9 to be connected with the check valve 19, the main pipeline phase of the check valve 19 and the shunt 7
Connection, described to be electrically connected with the master controller 11 without pressure test valve 9, the pulse pump 16 is by the gas in the shunt 7
After compression, compressed gas are by the air storage chamber 14, without pressure test valve 9, check valve 19 and shunt 7, into oil well.
It is described to have pressure test system also including exhaust muffling device 13, one end of the exhaust muffling device 13 and the pressure
Power cushion chamber 10 is connected, and the exhaust muffling device other end has varying aperture by aperture and external communication, the aperture,
The varying aperture of aperture is divided into three sections, and aperture first becomes big, after diminish, then become big, equivalent to 3 noise-damping bowls of connection.Aperture pipeline
Once, air-flow just expands once herein for the abrupt change of cross-section, consumes part energy.After repeatedly expanding, then it is in communication with the outside,
When this causes that gases at high pressure reach the outlet of silencing means, its pressure, speed and density have dropped down to similar with outside air
.
It is connected by high pressure line 3 between the well head harvester 1 and the switching valve 4.
The high pressure line 3 is rubber hose of the internal diameter more than 10 millimeters.
The pulse pump 16 is connected by pump air inlet pipe 18 with the main pipeline of the shunt 7, and pulse pump 16 leads to
Cross and pump out tracheae 15 and be connected with the air storage chamber 10, the monitoring device also includes power-supply system 12, power-supply system 12
By power line 17 for monitoring device provides electric energy, master controller 11 is electrically connected by holding wire 5 with pressure sensor 6.It is described
The air inlet pipe of pulse pump is connected by the shunt with oil well casing annular space, and the gas compressed during the pulse pump work takes
From oil well casing annular space.
The present invention is realized by a set of by setting multiple well head harvesters 1, multiple switching valves 4 and a shunt 7
Master control system is to many mouthfuls of tests of oil well.Save the portions such as multiple more complicated, relatively costly master control borads, sound wave sonification system
Part.For a cluster well, each individually controlled by multiple equipment originally, be changed as by the centralized and unified control of a set of equipment
Pattern, reduces number of devices, reduces purchase cost.The detection means that the present invention is provided installs micro- in well head harvester
Sound device 2, is connected by high pressure line 3 and holding wire 5 with system master controller 11, and the installation site of microphone 2 can be protected well
The stability and reliability of sound collecting are demonstrate,proved, and, make well head harvester function simple, small volume is easy for installation, is conducive to
Reduces cost.Rubber hose of the high pressure line 3 using internal diameter more than 10 millimeters, while test effect is ensured, reduces into
This, in-site installation is convenient, and workload is small.Master controller 11 ensures master control system at certain by the opening and closing of switching valve 4
One moment was only connected with a bite well in multiple wells.Shunt 7 is test airflow sound wave hinge, is completed together with switching valve 4
The switching of TCH test channel, and for test valve, pressure sensor and air inlet pipe provide interface.Pressure buffer chamber 10 has pressure due to temporary
The casing gas of moment discharge, coordinate with exhaust muffling device 13 and realize safety test during test, show as noiselessness, airless punching
Hit.Exhaust muffling device 13 by aperture and external communication, using aperture noise-cancelling theory, by aperture and sound wave gas channel
Varying aperture, acoustic wave energy of decaying eliminates the test noise produced during pressure test.Pulse pump 16 uses miniature oil free compression
Machine, pump air inlet pipe 18 is connected by shunt 7 with oil well casing annular space, and the gas compressed during pump work takes from oil well casing ring
Sky, the gases at high pressure of formation are injected into corresponding oil well casing annular space again in test.Test needs to spring up generation by air-flow
Infrasound, the gas needed such a construction ensures generation infrasound is entirely in a tubular column structure for closed loop closing, no
There is gas componant with the external world to exchange, do not reach the oxygen in air, the composition of gas in oil well casing annular space is not changed, do not have
There is potential safety hazard.Automated watch-keeping facility has pressure to test and without pressure two passages of test, according to hole condition can with automatic decision and
Selection test mode, is adapted to various hole conditions.Instrument is sealed using explosion-proof cabinet, explosion stack connection, meets flame proof design requirement.Profit
Infrasound needed for producing test with the casing gas of oil well itself, it is not necessary to which (for example Other Instruments is used extra high-pressure air source
High-pressure nitrogen bottle), because the casing gas of oil well itself are inexhaustible, thus the present invention can automatic running for a long time, be not required to people
Work is intervened.
The oil well liquid level automatic detection device that the present invention is provided is applied to simultaneously pressure or the Oil/gas Well without pressure, internal master control
Integrated high-precision pressure sensor in part, using it is judged that borehole pressure situation, so that the test pattern of decision systems；Simultaneously
It can also be used as the set pressure sensor of reflection well inner sleeve pipe pressure, and surface casing pressure data are provided in real time, have equipment
Multi-functional characteristic, reduces the integrated cost of digitizer to greatest extent.
The program of master controller 11 has time-sharing operation function, and automatic decision borehole pressure situation has automatically selected pressure outer quick-fried
Or without pressure implosion beep pattern, level is calculated automatically, point interval starts the test many well data of cluster well successively.
By master controller 11 successively switch test passage, in the wellhead casing pipe annular space of every mouthful of oil well of test, successively
Infrasonic sound wave impulse is produced, is processed by every mouthful of sound wave reflection receivable of well, calculate underground level.Test result can be with
By the direct remote transmissions of GPRS, it is also possible to carry out slitless connection by the fieldbus in well site and the automated system in well site.
The oil well liquid level automated watch-keeping facility that the present invention is provided, for there is kill-job, is utilized according to the natural situation of Oil/gas Well
Itself casing gas is tested in well.Gases at high pressure in casing annulus are discharged into suddenly air storage chamber, in annular space at well head
Gas moment expands, and produces expansion shock wave.For without kill-job, it is necessary to using sound generator produce a high pressure gas
Source, gases at high pressure are discharged into Oil/gas Well suddenly, and the gas moment in annular space at well head is compressed, and produce compression shock
Ripple.Sound wave (compression expands) pulse is propagated along annular space to underground, runs into tubing coupling, phonetic symbol, gas-liquid interface generation reflection
Sound wave pulse, receives ping and is converted into electric signal by microphony device assembly, and digital processing is carried out by controlling circuit, automatic to calculate
Go out level, test result and curvilinear figure are stored in the data storage of control circuit.
Control instruction is sent by master controller 11, the control passage for first selecting to specify address is corresponding certain a bite well, is sentenced
Casing pressure is whether there is in disconnected well, then selects corresponding acoustic wave mode to fire, and open corresponding gas channels, system real-time detection is adopted
Collect the induced signal of the acoustic receiving transducer of respective channel, record storage is calculated, and the test result that will be drawn is transferred to numeral
In change system.Command status are tested next time into waiting.Device can take turns many mouthfuls of current test according to the time interval for setting
Well, it is also possible to receive the instruction of digitization system at any time, directly test the current data of certain a bite well.
The specific work process of oil well liquid level automated watch-keeping facility is as follows：By " wireless telecommunication " or " well site from
After dynamicization system " receives test assignment, the pound sign tested as needed first sends order by the master controller 11 of system,
Open the switching valve of corresponding TCH test channel, make the oil jacket annular space of the well and shunt together with.Then pressure sensor judges
The oil gas borehole pressure, when not having pressure in well, it is necessary to outer quick-fried generation sound wave.I.e.：Pump air inlet pipe 18 by shunt together with
Oil well annular space, is that pulse pump 16 provides inlet air source, then the compressed gas of starting impulse pump 16, by pumping out tracheae 15 to gas storage
Room 14 is pressurizeed, and after pressure reaches setting value, is opened without pressure test valve 9, by the compressed gas quick release in air storage chamber
To in oil well casing.Gas moment in annular space at well head is compressed, and produces compression shock ripple, and this is directed to without kill-job
Outer quick-fried generation sonic test pattern.When there is enough pressure in well, implosion sound wave can be directly used, i.e., directly opening has pressure to survey
Examination valve 8, the gas in oil well casing is released quickly against outside device box by pressure buffer chamber 10 and exhaust muffling device 13,
Now the gas moment in annular space at well head expand, produce expansion shock wave, this be directed to have kill-job implosion produce
Sound wave mode of operation.
The compression or expansion shock wave are propagated along oil jacket annular space to underground, run into tubing coupling, phonetic symbol, gas-liquid interface generation
Reflection sound wave pulse, receives ping and is converted into electric signal by microphone 2, and digital place is carried out by control system master control borad 11
Reason, calculates level automatically.
The oil well liquid level automated watch-keeping facility that the present invention is provided gathers dress by the control to sound source sonification system, well head
Put, the setting of the component such as switching valve, realize oil well liquid level and monitor automatically, saved manpower.And, the present invention is more by setting
Individual well head harvester, multiple switching valves and a shunt, realize by a set of master control system to many mouthfuls of tests of oil well, section
The parts such as multiple more complicated, relatively costly master control borads, sound wave sonification system are saved.For cluster well, originally by
Multiple equipment is each individually controlled, and is changed as, by the centralized and unified control model of a set of equipment, reducing number of devices, is reduced
Purchase cost.Additionally, the monitoring device that the present invention is provided has pressure to test and tests two passages without pressure, can be with according to hole condition
Automatic decision and selection test mode, are adapted to various hole conditions.
Present invention also offers a kind of oil well liquid level automatic monitoring method, Fig. 2 is that embodiment of the present invention oil well liquid level is automatic
Monitoring method schematic flow sheet, as shown in Fig. 2 the described method comprises the following steps：
Step 201：Obtain the numbering of oil well to be tested；
Step 202：Numbering according to the oil well opens the corresponding switching valve of the oil well；
Step 203：Obtain the pressure value that pressure sensor is measured；
Step 204：Judge the pressure value whether more than setting value；
Step 205：If the pressure value is more than setting value, control has pressure test valve to open；
Step 206：If the pressure value is less than or equal to setting value, pulse pump work is controlled, and control to be tested without pressure
Valve is opened；
Step 207：The pulse wave signal that microphone is measured is obtained, the pulse wave signal is exported by the pulse pump
The impulse wave that gas is produced is by the impulse wave after the reflection of the liquid level of the oil well.
Step 208：Calculating is analyzed to the pulse wave signal, the level of the oil well is obtained.
Present invention also offers a kind of oil well liquid level automatic monitoring system, Fig. 3 is that embodiment of the present invention oil well liquid level is automatic
Monitoring system structural representation, as shown in figure 3, the system includes：
Oil well numbered cell 301, the numbering for obtaining oil well to be tested；
Switching valve opening unit 302, for opening the corresponding switching valve of the oil well according to the numbering of the oil well；
Pressure value acquiring unit 303, for obtaining the pressure value that pressure sensor is measured；
Pressure value judging unit 304, for judging the pressure value whether more than setting value；
There is pressure test valve opening unit 305, for when the pressure value is more than setting value, then control to have pressure test valve to open
Open；
Without pressure test valve opening unit 306, for when the pressure value is less than or equal to setting value, then controlling pulse pump work
Make, and control to be opened without pressure test valve；
Pulse wave signal acquiring unit 307, for obtaining the pulse wave signal that microphone is measured, the pulse wave signal is
The impulse wave that the gas exported by the pulse pump is produced is by the impulse wave after the reflection of the liquid level of the oil well；
Oil-well level computing unit 308, for being analyzed calculating to the pulse wave signal, obtains the oil well
Level.
The oil well liquid level automatic monitoring method and system that the present invention is provided are adopted by the control to sound source sonification system, well head
The setting of the components such as acquisition means, switching valve, realizes oil well liquid level and monitors automatically, has saved manpower.And, the present invention is by setting
Multiple well head harvesters, multiple switching valves and a shunt are put, is realized by a set of master control system to many mouthfuls of surveys of oil well
Examination, saves the parts such as multiple more complicated, relatively costly master control borads, sound wave sonification system.It is former for a cluster well
Each individually to be controlled by multiple equipment, it is changed as, by the centralized and unified control model of a set of equipment, reducing number of devices, drops
Low purchase cost.Additionally, the monitoring device that the present invention is provided has pressure to test and without pressure two passages of test, according to hole condition
Various hole conditions can be adapted to automatic decision and selection test mode.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
Specific case used herein is set forth to principle of the invention and implementation method, and above example is said
It is bright to be only intended to help and understand the method for the present invention and its core concept；Simultaneously for those of ordinary skill in the art, foundation
Thought of the invention, will change in specific embodiments and applications.In sum, this specification content is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of oil well liquid level automated watch-keeping facility, it is characterised in that described device includes：
Multiple well head harvesters, are provided with microphone inside the well head harvester, the microphone is used to receive
Impulse wave be converted to electric signal；
Shunt, is provided with main pipeline and multiple output channels, the output channel and the main pipeline phase in the shunt
Connection；
Multiple switching valves, the switching valve is used to control the company of output channel and the well head harvester in the shunt
Logical and closing；
Sound source sonification system, after the sound source sonification system is used to produce impulse wave, the impulse wave to run into the oil well liquid level
Reflection, the impulse wave of reflection is received by the microphone；
Master controller, the master controller be used to being controlled by controlling the switching valve output channel in the shunt with
The connection and closing of the well head harvester, the master controller are additionally operable to gather the telecommunications that the microphone is produced
Number, and calculating is analyzed to the electric signal, obtain the depth of oil well liquid level；
The well head harvester is connected one to one with the output channel of the shunt by the switching valve, the branch
The main pipeline of device is connected with sound source sonification system, and the master controller is electrically connected with the switching valve, well head harvester respectively
Connect.
2. monitoring device according to claim 1, it is characterised in that the monitoring device also includes：Pressure sensor, institute
State pressure sensor to be installed in the main pipeline of the shunt, the pressure sensor is electrically connected with the master controller.
3. monitoring device according to claim 1, it is characterised in that the sound source sonification system includes pressure test system
System, it is described to there is pressure test system to include pressure test valve and pressure buffer chamber, it is described to have pressure test valve one end and the shunt
Main pipeline be connected, it is described have pressure test valve the other end be connected with the pressure buffer chamber, it is described have pressure test valve with
The master controller electrical connection.
4. the monitoring device according to claim 1 or 3, it is characterised in that the sound source sonification system includes being tested without pressure
System, it is described to include without pressure test system：Pulse pump, air storage chamber, without pressure test valve and check valve, described pulse pump one end and institute
The main pipeline for stating shunt is connected, and the other end of the pulse pump is connected with the air storage chamber, described without pressure test valve one
End is connected with the air storage chamber, and the other end without pressure test valve is connected with the check valve, the check valve and institute
The main pipeline for stating shunt is connected, and described to be electrically connected with the master controller without pressure test valve, the pulse pump described will divide
After gas compression in the device of road, compressed gas are by the air storage chamber, without pressure test valve, check valve and shunt, into oil well.
5. monitoring device according to claim 3, it is characterised in that described to there is pressure test system also to be filled including exhaust noise silencing
Put, described exhaust muffling device one end is connected with the pressure buffer chamber, the exhaust muffling device other end passes through aperture
With external communication, the aperture has varying aperture.
6. monitoring device according to claim 1, it is characterised in that between the well head harvester and the switching valve
It is connected by high pressure line.
7. monitoring device according to claim 6, it is characterised in that the high pressure line is rubber of the internal diameter more than 10 millimeters
Glue flexible pipe.
8. monitoring device according to claim 4, it is characterised in that the air inlet pipe of the pulse pump passes through the shunt
It is connected with oil well casing annular space, the gas compressed during the pulse pump work takes from oil well casing annular space.
9. a kind of oil well liquid level automatic monitoring method, it is characterised in that methods described includes：
Obtain the numbering of oil well to be tested；
Numbering according to the oil well opens the corresponding switching valve of the oil well；
Obtain the pressure value that pressure sensor is measured；
Judge the pressure value whether more than setting value；
If it is, control has pressure test valve to open；
If it is not, then control pulse pump work, and control to be opened without pressure test valve；
The pulse wave signal that microphone is measured is obtained, the pulse wave signal is the arteries and veins that the gas exported by the pulse pump is produced
Ripple is rushed by the impulse wave after the reflection of the liquid level of the oil well；
Calculating is analyzed to the pulse wave signal, the level of the oil well is obtained.
10. a kind of oil well liquid level automatic monitoring system, it is characterised in that the system includes：
Oil well numbered cell, the numbering for obtaining oil well to be tested；
Switching valve opening unit, for opening the corresponding switching valve of the oil well according to the numbering of the oil well；
Pressure value acquiring unit, for obtaining the pressure value that pressure sensor is measured；
Pressure value judging unit, for judging the pressure value whether more than setting value；
There is pressure test valve opening unit, for when the pressure value is more than setting value, then control to have pressure test valve to open；
Without pressure test valve opening unit, for when the pressure value is less than or equal to setting value, then controlling pulse pump work, and control
System is opened without pressure test valve；
Pulse wave signal acquiring unit, for obtaining the pulse wave signal that microphone is measured；
Oil-well level computing unit, for being analyzed calculating to the pulse wave signal, obtains the liquid level of the oil well
Depth.
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| CN111577253A (en) * | 2020-05-25 | 2020-08-25 | 陈明 | Safe and environment-friendly unconventional gas well effusion testing device and method |
| CN111594146A (en) * | 2020-05-28 | 2020-08-28 | 中国石油集团渤海钻探工程有限公司 | Liquid level monitoring and early warning system for well drilling |
| CN112228044A (en) * | 2020-12-14 | 2021-01-15 | 胜利油田大源节能设备有限公司 | Internal and external explosion integrated working fluid level measuring device and measuring method |
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