CN108708709A - The device and method of pit shaft inner ring film thickness where measuring vortex drainage gas production tool - Google Patents
The device and method of pit shaft inner ring film thickness where measuring vortex drainage gas production tool Download PDFInfo
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- CN108708709A CN108708709A CN201810518254.0A CN201810518254A CN108708709A CN 108708709 A CN108708709 A CN 108708709A CN 201810518254 A CN201810518254 A CN 201810518254A CN 108708709 A CN108708709 A CN 108708709A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
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- 235000004443 Ricinus communis Nutrition 0.000 claims description 7
- BULVZWIRKLYCBC-UHFFFAOYSA-N phorate Chemical compound CCOP(=S)(OCC)SCSCC BULVZWIRKLYCBC-UHFFFAOYSA-N 0.000 claims description 6
- 238000000205 computational method Methods 0.000 claims description 4
- 241000208340 Araliaceae Species 0.000 claims description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 2
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- 239000012071 phase Substances 0.000 abstract description 15
- 239000007791 liquid phase Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 56
- 238000002604 ultrasonography Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 241000521257 Hydrops Species 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000827 velocimetry Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012332 laboratory investigation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- 238000004364 calculation method Methods 0.000 description 1
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- 238000009533 lab test Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The present invention relates to the device and methods of pit shaft inner ring film thickness where measuring vortex drainage gas production tool, the device of pit shaft inner ring film thickness includes multi-phase flow apparatus where wherein measuring vortex drainage gas production tool, ultrasonic Doppler speed measuring device, vortex tool, multi-phase flow apparatus includes gas dispensing line, liquid dispensing tube road, guide rail, driving derricking gear, manual hoist, lucite tube measuring mechanism, electric control gear, computer, air compressor is connected to mixer through gas dispensing line, sink is via pump, liquid dispensing tube road connects mixer, mixer is separately connected corresponding lucite tube through pipeline, the pipeline installs motor-driven valve；There are vortex tool, lucite tube to be mounted on mobile holder in one of lucite tube；Ultrasonic Doppler speed measuring device is for measuring ring film thickness and liquid velocity.The present invention can measure under the conditions of different hole angles and different gas liquid ratio the speed of the thickness of pit shaft inner ring film and liquid phase after vortex tool.
Description
Technical field
The present invention relates to vortex tool drainage gas recoveries, and in particular to where measuring vortex drainage gas production tool in pit shaft
The device and method of ring film thickness.
Background technology
During gas well liquid loading, due to natural gas producing initial stage, stratum energy supply is sufficient, and gas production is high；With life
The progress of production, stratum energy, which continuously decreases, causes gas production to reduce, and what air-flow generated lifts power deficiency upwards, and gas well plug-ging can not
It takes out of with air-flow and is built up in shaft bottom together, energy loss becomes larger, and gas production is further reduced.At the beginning of Gas well dewatering
Phase, energy supply is sufficient, and tolerance can carry hydrops to ground；The Gas well dewatering middle and later periods, with stratum energy failure and go out
The increase of water, the pressure and flowing velocity of gas reservoir gradually reduce, and cause output water and condensed liquid in pit shaft that cannot arrange completely
Go out, it is made to be trapped in well, increase the whole back pressure of natural gas well gas pay, liquid, which constantly accumulates, causes gas well shaft bottom product
Liquid.It solves the problems, such as that a kind of important process technology of shaft bottom hydrops is vortex tool water drainage-gas recovery technology, can be realized using the technique
The purpose of water pumping gas production is carried out to the gas well of shaft bottom hydrops.
Vortex tool water drainage-gas recovery technology be by application vortex tool come realize underground gas-liquid separation, output water re-injection and
The novel water drainage-gas recovery technology that gas production is integrated in one.Vortex tool advantage is simple in structure, small, efficient.Gas-liquid two-phase
Stream enters pit shaft by shaft bottom, and state in the wellbore is changed due to being vortexed the effect of tool.Flow through vortex tool it
Before, biphase gas and liquid flow is uniform along caliber directional spreding, and biphase gas and liquid flow is due to centrifugation force effect generation point after vortex tool
From forming air column at center, form liquid film at tube wall.As gas continues up lifting liquid.Liquid film around pit shaft inclines
Angle slope constantly increases, and in gradually stable spiral status.In whole process, since the function and effect of vortex tool are different,
The thickness of ring film constantly changes.Therefore vortex tool water pumping gas production effect can be verified according to ring film thickness and liquid velocity.
The research for being vortexed tool is focused primarily upon at present and is calculated using numerical simulation technology, in design phase software
Effect is fine in the vortex tool software of simulation, but can not get a desired effect in actual production.Main cause is room
Interior experimental verification is less, can not logarithm analog result verified, directly apply to field working conditions, effect is not sufficiently stable.It is special
Ring film thickness after not being the eddy flow generated after vortex drainage gas production tool in in-house laboratory investigation and stablizing measures this
Key problem can not solve always.
Invention content
It is an object of the present invention to provide measure vortex drainage gas production tool where pit shaft inner ring film thickness device, this
The device of pit shaft inner ring film thickness where kind measures vortex drainage gas production tool is for solving in in-house laboratory investigation by being vortexed
The eddy flow that is generated after drainage gas production tool and the ring film thickness after stablizing measure that this key problem is insurmountable always to ask
Topic, it is a further object to provide the devices of pit shaft inner ring film thickness where measuring vortex drainage gas production tool to be surveyed
The method for measuring experiment.
The technical solution adopted by the present invention to solve the technical problems is：Well where this measurement vortex drainage gas production tool
The device of cylinder inner ring film thickness includes multi-phase flow apparatus, ultrasonic Doppler speed measuring device, vortex tool, and multi-phase flow apparatus includes sky
Air compressor, gas dispensing line, sink, liquid dispensing tube road, mobile holder, guide rail, driving derricking gear, manual elevator
Machine, mixer, lucite tube measuring mechanism, electric control gear, computer, air compressor are connected to via gas dispensing line
Mixer, sink are connected to mixer via pump, liquid dispensing tube road, and mixer is separately connected corresponding organic glass through pipeline
It manages, motor-driven valve is installed on the pipeline, motor-driven valve connects electric control gear, and each lucite tube connects gas-liquid separation by pipeline
Device, gas-liquid separator connection water channel；There is vortex tool in one of lucite tube, differential pressure sensing is installed on lucite tube
Device, temperature sensor, porosity transmitter, each lucite tube are mounted on mobile holder, and mobile holder has castor；It leads
Rail is made of horizontal guide rail side setting vertical rail, has an I-shaped track, mobile riding setting horizontal guide rail with
Between vertical rail, it is slidably connected by castor with vertical rail with horizontal guide rail；Each lucite tube is respectively mounted differential pressure
Multiple flowmeters are installed on sensor, temperature sensor, porosity transmitter, gas dispensing line, liquid dispensing tube road respectively；Difference
Pressure sensor, temperature sensor, porosity transmitter are all connected with computer；
Ultrasonic Doppler speed measuring device includes ultrasonic probe, ultrasonic Doppler velocimeter, data upload analytical equipment, and ultrasound is more
General Le tachymeter is put in the internal lucite tube for having vortex tool by clamping device frame and nearby carries out non-contact measurement, surveys
Doppler angle is changed by clamping device when amount, ultrasonic Doppler velocimeter is connect with computer, ultrasonic Doppler speed measuring device
For being measured to ring film thickness and liquid velocity.
Gas service pipes route three assignment of traffic pipeline parallel connections and constitutes in said program, and every assignment of traffic pipeline is pacified
Flowmeter and valve are filled, gas dispensing line connects mixer through stable can.
Liquid dispensing tube route three assignment of traffic pipeline parallel connections and constitutes in said program, and every assignment of traffic pipeline is pacified
Fill flowmeter and valve.
The method that the device of pit shaft inner ring film thickness where above-mentioned measurement vortex drainage gas production tool measures experiment：
Selected organic glass pipe diameter is tested Step 1: determining, lucite tube is used for simulation wellbore hole, vortex tool is added
It is loaded onto organic glass bottom of the tube, simulation wellbore hole puts vortex tool to the field working conditions in shaft bottom；Ultrasonic Doppler velocimeter frame is put
Near lucite tube non-contact measurement is carried out to realize；
Step 2: opening power control cabinet general supply, air compressor and pumping source are opened, setting gas enters the flow of pit shaft time
And pressure, then given different liquids flow, computer is opened, system pressurization and flowing experiment are carried out；
Step 3: carrying out traction pulling to mobile holder using manual hoist, corresponding lower curved section hole angle is simulated, is if desired moved
When dynamic holder is in vertical position, opens driving power supply and mobile holder is lifted by crane；
Step 4: when being measured to liquid velocity in lucite tube, casing is added outside ultrasonic probe, and add in casing
Enter medium water；There are doppler angle between ultrasonic probe and organic glass tube wall, because of the ring film helically ascendant trend of generation,
Measurement point is selected when measurement within the scope of 0 ° ~ 360 °, chooses the several measurement angles of circumferential position, then the axis from each circumferential position
Selection a little is measured to position；Thickness measure is chosen measurement point and is identical with this；
When ring film thickness measures, being smeared in lucite tube outside wall surface prevents the medium of ultrasonic attenuation, in the circumferential to 0 ° ~
The ring film thickness of 360 ° of positions measures；Ultrasonic velocity measurement probe is close to organic glass tube walls face, with lucite tube wall surface
Keep vertical；
Step 5: recording lucite tube pressure drop data and taking pictures to gas-liquid fluidised form in pipe, flow regime ginseng is exported in real time
Number and liquid velocity, complete the acquisition of this group of experimental data；
Step 6: loading the vortex tool of Different structural parameters successively, step 1 is repeated to step 5, acquires different groups of other numbers
According to, analyze each flow parameter changing rule and liquid velocity variation；
Step 7: calculating thickness of liquid film, supersonic Doppler tachymeter is based on Doppler effect, and ultrasonic wave is by two-phase interface
It will appear strong reflection, be to have fixed time interval due to emitting and receiving signal, pass through the frequency of the back wave of acquisition
And intensity distance between two-phase interface calculates, the present invention has two boundaries of wall surface-liquid film and liquid film-gas, corresponds to
Two compared with the distance between strong reflectance signal peak be ring film thickness；
Step 8: the gas well liquid loading parameter that lucite tube oblique angle and gas dispensing line, liquid dispensing tube road are simulated into
Row changes, and obtains ring film thickness and the liquid velocity under different production status.
The computational methods of step 7 middle ring film thickness in said program：
The ultrasonic transmitter of ultrasonic Doppler velocimeter periodically sends out short ultrasonic pulse, receives to receiver continuity by can
The echo caused by the target in ultrasonic wave path, ring film thickness areδ, the speed of ultrasonic wave in waterc, when receiver by
To echo occur first compared with the strong reflectance signal start recording timeT 1, recorded when occurring second compared with strong reflectance signal
TimeT 2, ring film thickness is calculated by the following formula：
。
The invention has the advantages that：
1, the present invention uses Doppler ultrasound velocimetry device to measure pit shaft inner ring film thickness where vortex drainage gas production tool for the first time
And liquid velocity, it measures and computational methods is simple, cost of equipment is low and measurement accuracy is higher, and precision can reach 0.0001m.It solves
The technical barrier that pit shaft inner ring film thickness where laboratory experiment vortex tool is unable to measure.To realize in laboratory to whirlpool
The verification of stream tool water pumping gas production effect can not match live actual application problem to vortex tool design result and provide laboratory
Internal reference data are supported and technical support.
2, the present invention repeats utilization and experimentation safety, high degree of automation, controllability are strong.Different lifes can be matched
Production operating mode and different tool parameters conditions are simulated.
3, experimentation of the present invention is visual, can real-time image acquisition and observation eddy flow state and phenomenon, and can export in real time
Flow regime parameter under different experimental conditions and liquid velocity, and the ring film speed that can be obtained by calculation under the state.
4, the present invention can simulate the hole angle of different angle by the mobile support angle of change, can measure not
With under the conditions of hole angle and different gas liquid ratio after vortex tool the speed of the thickness of pit shaft inner ring film and liquid phase, repeat profit
With and experimentation safety.
Description of the drawings
Fig. 1 is the schematic device of pit shaft inner ring film thickness where measuring vortex drainage gas production tool.
Fig. 2 is Doppler ultrasound velocimetry device thickness measurement point schematic diagram.
Fig. 3 is that doppler ultrasound measuring device measures ring film thickness measurement point schematic diagram.
In figure：1. air compressor, 2. sinks, 3. valves, 4. flowmeters, 5. pumps, 6. stable cans, 7. mixers, 8. electricity
Dynamic valve, 9. differential pressure pick-ups, 10. porosity transmitters, 11. guide rails, 12. ultrasonic Doppler speed measuring devices, 13. vortex tools,
14. lucite tube, 15. gas-liquid separators, 16. temperature sensors, 17. ultrasonic probes, 18. liquid films.
Specific implementation mode
The present invention will be further described below with reference to the drawings：
As shown in Figure 1, it is this measure vortex drainage gas production tool where pit shaft inner ring film thickness device include multi-phase flow apparatus,
Ultrasonic Doppler speed measuring device, vortex tool, multi-phase flow apparatus includes air compressor 1, gas dispensing line, sink 2, liquid
Distribution circuit, mobile holder, guide rail 11, driving derricking gear, manual hoist, mixer 7, lucite tube measuring mechanism,
Electric control gear, computer, air compressor 1 are connected to mixer 7 via gas dispensing line, and sink 2 is via pump 5, liquid point
It is connected to mixer 7 with pipeline, gas dispensing line, liquid dispensing tube road are connected to mixer 7, convenient for being sufficiently mixed gas-liquid
Two-phase.Mixer 7 is separately connected corresponding lucite tube 14 through pipeline, and motor-driven valve 8 is installed on the pipeline, and motor-driven valve 8 connects
Electric control gear, each lucite tube 14 connect gas-liquid separator 15,15 connection water channel 2 of gas-liquid separator by pipeline；Wherein
There are vortex tool 13, each lucite tube 14 to be mounted on mobile holder in one lucite tube 14；On lucite tube
Differential pressure pick-up, temperature sensor, porosity transmitter are installed, differential pressure pick-up, temperature sensor, porosity transmitter connect
Computer is connect, lucite tube measuring mechanism is constituted.Gas service pipes route three assignment of traffic pipeline parallel connections and constitutes, every stream
Amount distribution pipeline is respectively mounted flowmeter 4 and valve 3, and gas dispensing line connects mixer 7 through stable can 6.Liquid dispensing tube road
It is made of three assignment of traffic pipeline parallel connections, every assignment of traffic pipeline is respectively mounted flowmeter 4 and valve 3.Gas dispensing line,
Three assignment of traffic pipelines are designed on liquid dispensing tube road, and convenient for flow-rate adjustment and to prevent instrument damage from giving over to spare.
Guide rail 11 is made of horizontal guide rail side setting vertical rail, has I-shaped track, mobile riding setting
Between horizontal guide rail and vertical rail, there is mobile holder castor, mobile holder to pass through with vertical rail with horizontal guide rail
Castor is slidably connected；Each lucite tube 14 is respectively mounted differential pressure pick-up 9, temperature sensor 16, porosity transmitter 10, gas
Multiple flowmeters 4 are installed on body distribution circuit, liquid dispensing tube road respectively；Differential pressure pick-up 9, temperature sensor 16, porosity become
Device 10 is sent to be all connected with computer.
Ultrasonic Doppler test the speed fill 12 set including ultrasonic probe 17, ultrasonic Doppler velocimeter, data upload analysis set
Standby, ultrasonic Doppler velocimeter is put in that internal to have the lucite tube 14 of vortex tool 13 nearby to carry out non-by clamping device frame
Contact type measurement changes doppler angle when measurement by clamping device, and ultrasonic Doppler velocimeter is connect with computer, ultrasonic more
General Le speed measuring device 12 is for measuring ring film thickness and liquid velocity.
Vortex tool 13 includes that the vortex tool of different tool parameters combination and vortex tool loads device, vortex tool add
It carries to set and is fixed to simulation wellbore hole bottom for tool 13 will to be vortexed（The present invention is using machine glass tube 14 as simulation wellbore hole）.
The method that the device of pit shaft inner ring film thickness where this measurement vortex drainage gas production tool measures experiment
1. connect air compressor 1, valve 3 and flowmeter 4, device design three assignment of traffic pipelines so as to flow-rate adjustment with
And to prevent instrument damage from giving over to spare.Similarly sink 2, pump 5, flowmeter 4 are attached.By above-mentioned gas distribution circuit, liquid
Body distribution circuit is connected to mixer 7 simultaneously, to be sufficiently mixed gas-liquid two-phase.
2. determining selected 14 latus rectum of lucite tube of experiment, the valve 3 of connection required opening when flowing.It will vortex
Tool 13 is loaded onto experiment test pipeline section bottom（14 bottom of lucite tube）, choose the differential pressure sensing to match with the flow direction
4 respective valves of device 9, temperature sensor 16 and flowmeter.Whole device is mounted on mobile holder, when bearing mobile holder standing
The castor of weight is assemblied in side, and realizes movement of not derailing on I-shaped track.Using vortex tool loads device by whirlpool
Stream tool 13 is loaded onto in lucite tube 14, and simulation wellbore hole puts vortex tool 13 to the field working conditions in shaft bottom.Complete valve 3 with
And the connection of motor-driven valve 8, complete the control to the start and stop of apparatus of the present invention and other operations.
3. ultrasonic Doppler velocimeter is fixed on its clamping device and is connect with computer, frame is put in lucite tube 14
Non-contact measurement is nearby carried out, to ensure that measurement accuracy should be how general to ultrasound to reduce air dielectric close proximity to glass tube
It strangles tachymeter transmitting signal and receives the influence of reflection signal.This experimental provision installs.
4. after determining that above-mentioned work is ready to, power control cabinet general supply is opened, opens 5 power supplys of air compressor 1 and pump, if
Determine flow and pressure that gas enters the pit shaft time, then given different liquids flow, opens computer, carry out system pressurization and stream
Dynamic experiment.
5. movement holder also needs opening driving power supply to lift by crane mobile holder when in vertical position, while also needing profit
Traction is carried out with manual hoist to mobile holder and pulls to achieve the purpose that the corresponding lower curved section hole angle of simulation with this.
It is adjusted 6. Doppler ultrasound velocimetry device 12 is fixed on ultrasonic Doppler ultrasonic velocity measurement device clamping device
Section.When being measured to liquid velocity in lucite tube 14, since there are certain angles with organic glass tube wall for the needs of instrument
Degree is doppler angle.Because of the ring film helically ascendant trend of generation.Therefore it need to select to measure within the scope of 0 ° ~ 360 ° when measuring
Point.When carrying out tachometric survey, needs add casing outside ultrasonic probe 17, and medium water is added in casing, to prevent ultrasound
Wave is decayed by air dielectric.The several measurement angles of circumferential position, then the axial direction from each circumferential position can voluntarily be chosen
Position measures selection a little.Selection of the thickness measure selection of measuring point with speed measurement point.As shown in Figure 2.
Ring film thickness measures the medium that ultrasonic attenuation need to be prevented in 14 outside wall surface of lucite tube smearing.In the circumferential
The ring film thickness of 0 ° ~ 360 ° positions is measured.In the axial direction, measuring point range can voluntarily be adjusted.To avoid angle
The influence of measurement error and the attenuation degree for reducing ultrasonic wave can enable ultrasonic velocity measurement probe be close to wall when measuring ring film thickness
Face, it is vertical with wall surface holding.As shown in Figure 3.
7. recording tubing string pressure drop data and taking pictures to gas-liquid fluidised form in pipe.Load different structure is joined successively in the completed
Number vortex tool repeats above operation.Different groups of other data are acquired, each flow parameter changing rule and liquid velocity are analyzed
Variation.Thickness of liquid film is calculated.Supersonic Doppler tachymeter is based on Doppler effect, and ultrasonic wave is passing through two phase boundaries
Face will appear strong reflection, and be to have fixed time interval due to emitting and receiving signal, can pass through the back wave of acquisition
Frequency and intensity between two-phase interface distance calculate.The present apparatus has two phase boundaries of wall surface-liquid film 18 and liquid film 18- gases
Face, corresponding two are ring film thickness compared with the distance between strong reflectance signal peak.Computational methods are as follows：
The ultrasonic transmitter of ultrasonic Doppler velocimeter periodically sends out short ultrasonic pulse, receives to receiver continuity by can
The echo caused by the target in ultrasonic wave path, ring film thickness areδ, the speed of ultrasonic wave in waterc, when receiver by
To echo occur first compared with the strong reflectance signal start recording timeT 1, recorded when occurring second compared with strong reflectance signal
TimeT 2, ring film thickness can be calculated by the following formula：
8. lower curved section hole angle and gas well manufacturing parameter are changed, you can obtain ring film thickness under different production status and
Liquid velocity.
Claims (5)
1. a kind of device measuring vortex drainage gas production tool place pit shaft inner ring film thickness, it is characterised in that：This measurement whirlpool
The device of pit shaft inner ring film thickness includes multi-phase flow apparatus, ultrasonic Doppler speed measuring device where flowing drainage gas production tool（12）,
Vortex tool（13）, multi-phase flow apparatus includes air compressor（1）, gas dispensing line, sink（2）, liquid dispensing tube road, move
Dynamic holder, guide rail（11）, driving derricking gear, manual hoist, mixer（7）, lucite tube measuring mechanism, automatically controlled dress
It sets, computer, air compressor（1）It is connected to mixer via gas dispensing line（7）, sink（2）Via pump（5）, liquid
Distribution circuit is connected to mixer（7）, mixer（7）It is separately connected corresponding lucite tube through pipeline（14）, on the pipeline
Motor-driven valve is installed（8）, motor-driven valve（8）Connect electric control gear, each lucite tube（14）Gas-liquid separator is connected by pipeline
（15）, gas-liquid separator（15）Connection water channel（2）；One of lucite tube（14）Inside there is vortex tool（13）, organic glass
Glass pipe（14）Upper installation differential pressure pick-up（9）, temperature sensor（16）, porosity transmitter（10）, each lucite tube
（14）On mobile holder, mobile holder has castor；Guide rail（11）It is made of horizontal guide rail side setting vertical rail,
With I-shaped track, mobile riding is arranged between horizontal guide rail and vertical rail, with horizontal guide rail and vertical rail
It is slidably connected by castor；Each lucite tube（14）It is respectively mounted differential pressure pick-up（9）, temperature sensor（16）, hole
Rate transmitter（10）, multiple flowmeters are installed on gas dispensing line, liquid dispensing tube road respectively（4）；Differential pressure pick-up（9）, temperature
Spend sensor（16）, porosity transmitter（10）It is all connected with computer；
Ultrasonic Doppler speed measuring device（12）Including ultrasonic probe（17）, ultrasonic Doppler velocimeter, data upload analysis set
Standby, ultrasonic Doppler velocimeter is put in inside by clamping device frame vortex tool（13）Lucite tube（14）Nearby into
Row non-contact measurement changes doppler angle when measurement by clamping device, and ultrasonic Doppler velocimeter is connect with computer, super
Sound Doppler speed measuring device（12）For being measured to ring film thickness and liquid velocity.
2. the device according to claim 1 for measuring vortex drainage gas production tool place pit shaft inner ring film thickness, feature
It is：The gas service pipes route three assignment of traffic pipeline parallel connections and constitutes, and every assignment of traffic pipeline is respectively mounted flow
Meter（4）And valve（3）, gas dispensing line is through stable can（6）Connect mixer（7）.
3. the device according to claim 2 for measuring vortex drainage gas production tool place pit shaft inner ring film thickness, feature
It is：The liquid dispensing tube route three assignment of traffic pipeline parallel connections and constitutes, and every assignment of traffic pipeline is respectively mounted flow
Meter（4）And valve（3）.
4. the device of pit shaft inner ring film thickness measures where the measurement vortex drainage gas production tool described in a kind of claim 3
The method of experiment, it is characterised in that include the following steps：
Selected lucite tube is tested Step 1: determining（14）Diameter, lucite tube（14）For simulation wellbore hole, by whirlpool
Stream tool（13）It is loaded onto lucite tube（14）Bottom, simulation wellbore hole put vortex tool（13）To the field working conditions in shaft bottom；It will
Ultrasonic Doppler velocimeter frame is put in lucite tube（14）Nearby non-contact measurement is carried out to realize；
Step 2: opening power control cabinet general supply, air compressor is opened（1）And pump（5）Power supply, setting gas enter the pit shaft time
Flow and pressure, then given different liquids flow, open computer, carry out system pressurization and flowing experiment；
Step 3: carrying out traction pulling to mobile holder using manual hoist, corresponding lower curved section hole angle is simulated, is if desired moved
When dynamic holder is in vertical position, opens driving power supply and mobile holder is lifted by crane；
Step 4: when being measured to liquid velocity in lucite tube, in ultrasonic probe（17）Additional casing, and in casing
Interior addition medium water；Ultrasonic probe（17）There are doppler angle between organic glass tube wall, because generation ring film helically
Ascendant trend selects measurement point when measurement within the scope of 0 ° ~ 360 °, chooses the several measurement angles of circumferential position, then from each week
Selection a little is measured to the axial position of position；Thickness measure is chosen measurement point and is identical with this；
When ring film thickness measures, being smeared in lucite tube outside wall surface prevents the medium of ultrasonic attenuation, in the circumferential to 0 ° ~
The ring film thickness of 360 ° of positions measures；Ultrasonic velocity measurement probe is close to organic glass tube walls face, with lucite tube wall surface
Keep vertical；
Step 5: record lucite tube（14）It pressure drop data and takes pictures to gas-liquid fluidised form in pipe, the shape of output flowing in real time
State parameter and liquid velocity complete the acquisition of this group of experimental data；
Step 6: loading the vortex tool of Different structural parameters successively（13）, step 1 is repeated to step 5, acquires different groups
Data, analyze each flow parameter changing rule and liquid velocity variation；
Step 7: calculating thickness of liquid film, supersonic Doppler tachymeter is based on Doppler effect, and ultrasonic wave is by two-phase interface
It will appear strong reflection, be to have fixed time interval due to emitting and receiving signal, pass through the frequency of the back wave of acquisition
And intensity distance between two-phase interface calculates, the present invention has wall surface-liquid film（18）And liquid film（18）Two phase boundaries of gas
Face, corresponding two are ring film thickness compared with the distance between strong reflectance signal peak；
Step 8: by lucite tube（14）The gas well liquid loading ginseng that oblique angle and gas dispensing line, liquid dispensing tube road are simulated
Number is changed, and obtains ring film thickness and the liquid velocity under different production status.
5. the device according to claim 4 for measuring vortex drainage gas production tool place pit shaft inner ring film thickness measures
The method of experiment, it is characterised in that：The computational methods of the ring film thickness：
The ultrasonic transmitter of ultrasonic Doppler velocimeter periodically sends out short ultrasonic pulse, receives to receiver continuity by can
The echo caused by the target in ultrasonic wave path, ring film thickness areδ, the speed of ultrasonic wave in waterc, when receiver by
To echo occur first compared with the strong reflectance signal start recording timeT 1, recorded when occurring second compared with strong reflectance signal
TimeT 2, ring film thickness is calculated by the following formula：
。
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