CN106092236B - A kind of multiphase flow metering detection system - Google Patents
A kind of multiphase flow metering detection system Download PDFInfo
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- CN106092236B CN106092236B CN201610362932.XA CN201610362932A CN106092236B CN 106092236 B CN106092236 B CN 106092236B CN 201610362932 A CN201610362932 A CN 201610362932A CN 106092236 B CN106092236 B CN 106092236B
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- 238000001514 detection method Methods 0.000 title claims abstract description 46
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 36
- 238000004587 chromatography analysis Methods 0.000 claims abstract description 21
- 238000003384 imaging method Methods 0.000 claims abstract description 20
- 238000003325 tomography Methods 0.000 claims abstract description 20
- 238000002604 ultrasonography Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 239000012071 phase Substances 0.000 claims description 38
- 239000007791 liquid phase Substances 0.000 claims description 31
- 230000008602 contraction Effects 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 210000000867 larynx Anatomy 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 27
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F7/00—Volume-flow measuring devices with two or more measuring ranges; Compound meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F7/00—Volume-flow measuring devices with two or more measuring ranges; Compound meters
- G01F7/005—Volume-flow measuring devices with two or more measuring ranges; Compound meters by measuring pressure or differential pressure, created by the use of flow constriction
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention provides a kind of multiphase flow metering detection system, and system includes Venturi tube, pressure module, capacitance chromatography imaging module, electrical resistance tomography module, ultrasound detection module and data acquisition and procession unit；Upstream, throat and the downstream of Venturi tube are respectively arranged with above-mentioned module；Data acquisition and procession unit is electrically connected with pressure module, capacitance chromatography imaging module, electrical resistance tomography module, ultrasound detection module and differential pressure transmitter, for acquiring and handling the data of each functional module.The detection system combines electrical capacitance tomography, Electrical Resistance Tomography, ultrasonic detecting technology with venturi, is solved using the combined signal of each sensor to multiphase flow rates；And by each sensor design be standardized module form, it change its position on venturi can flexibly, provide precise measurement to the Multiphase Flows of different flow patterns by adjusting measurement position；Simple with structure, signal extraction is stablized, the advantages that response frequency is high.
Description
Technical field
The present invention relates to the technical field of the multiphase flow meterings measuring device such as oil-gas-water in oil and gas industry, more particularly to
A kind of multiphase flow metering detection system.
Background technique
According to exploration, entire South China Sea Basin group petroleum geology stock number is about between 23,000,000,000 to 30,000,000,000 tons, and natural gas is generally
Matter stock number is about 16 tcms, accounts for the one third of Chinese Petroliferous total resources, wherein 70% contain it is flat in 153.7 ten thousand
The blue water of Fang Gongli.With the continuous consumption of Land petroleum surplus resources, demand day that industry exploits marine oil and gas
Benefit improves, and underwater Multiphase Fluid Measurement Technology also becomes industry focus of attention.
And in the industry of China's offshore oil and gas, traditional gas gathering station, which is used for a long time, separates condensation natural gas (two-phase),
The medium after separation is measured using single-phase flow instrument again.Though this way can guarantee certain measuring accuracy, its disadvantage
It holds also fairly obvious.The construction at separate measurement station not only somewhat expensive a, it is often more important that zones and surface areas for joint exploration and exploitation are generally only capable of building
One separate measurement station, numerous natural gas well yields in the block can only be measured periodically in turn, and then be unable to satisfy
Oil company carries out the demand of real-time monitoring to every mouth well yield information.
It is proposed that a kind of dampening information by X-ray analyze containing rate to oil-gas-water multiphase in patent 103076057A
Metering method.Though this method there can be higher discrimination to the liquid phase in multiphase flow, used radiation is had a disadvantage in that
Property scheme is that the industry there are biggish security risk, in China also rarely has utilization.
It is proposed in patent 202252857U, by being mixed and being accelerated to heterogeneous fluid, after forming symmetrical annular flow,
Two-stage shunting is carried out to it again: annular flow is divided into 16 symmetrical independent flow passages, takes wherein evenly spaced four strands
For the method for all the way, then separating, measuring respectively again.Due to the core or separate measurement of its technology, it is multiple that there are structures
The weakness such as miscellaneous crushing is larger and measurement efficiency is limited.
Summary of the invention
The present invention provides a kind of multiphase flow metering detection system, it is able to solve and detects multiphase flow metering in the prior art
The technical problem of device and method process complexity.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of multiphase flow metering detection is provided
System, the system comprises Venturi tube, pressure module, capacitance chromatography imaging module, electrical resistance tomography modules, ultrasound detection
Module and data acquisition and procession unit；Upstream, throat and the downstream of the Venturi tube are respectively arranged with the pressure
Module, the capacitance chromatography imaging module, the electrical resistance tomography module and the ultrasound detection module are adjacent described to take
Differential pressure transmitter is connected between die block, to measure the pressure difference value between different location pressure module；The data are adopted
Collection and processing unit and the pressure module, the capacitance chromatography imaging module, the electrical resistance tomography module, the ultrasound
Detection module and differential pressure transmitter electrical connection, for acquiring and handling the data of each functional module.
According to one preferred embodiment of the present invention, the detection system further includes the pressure inverting set on Venturi tube upstream
Device, the pressure transmitter are used to detect the pressure value of Venturi tube upstream position.
According to one preferred embodiment of the present invention, detection system further includes the temperature transmitter set on Venturi tube downstream, institute
Temperature transmitter is stated for detecting the temperature value of Venturi tube downstream position.
According to one preferred embodiment of the present invention, the throat of the Venturi tube sets there are two pressure module, and two pressures
Spacing between module is not less than 200mm.
According to one preferred embodiment of the present invention, contraction section, larynx are equipped between the upstream and throat of the Venturi tube
Expansion segment is equipped between portion and downstream pipe；The upstream, the contraction section, the throat, the expansion segment and institute
It states and is connected between downstream pipe by flange arrangement.
According to one preferred embodiment of the present invention, the pressure module of upstream setting and the starting point distance of contraction section are greater than
0.5D；The pressure module of downstream setting and the end distance of expansion segment are greater than 6D, wherein D is upstream or downstream pipe
Interior diameter.
According to one preferred embodiment of the present invention, the pressure module, the capacitance chromatography imaging module, resistance chromatography
Image-forming module and the ultrasound detection module be all made of the upstream of flange arrangement and the Venturi tube, throat and under
Swim piping connection.
According to one preferred embodiment of the present invention, the parameter of each functional module measurement meets following equation:Wherein, WGFor gas phase quality stream
Amount, WLFor liquid phase quality flow, A is the circulation area of gas phase and liquid phase, AGIt is gas phase circulation area, ALIt is liquid phase circulation area,
UGFor the true flow velocity of gas phase, ULFor the true flow velocity of liquid phase, τGWShear stress between gas phase and tube wall, τLWIt is between liquid phase and tube wall
Shear stress, SGWFor the length that gas phase on pipeline section is contacted with tube wall, SLWIt is the contact length of liquid phase and tube wall, angle, θ
Refer to that formed acute angle between pipeline and horizontal plane, p are the momentum of liquid and gas；X is the length that flows to of fluid, and dx is that flow direction is empty
Between step-length；ρ is density, and subscript G indicates gas phase, and subscript L indicates liquid phase.
According to one preferred embodiment of the present invention, the internal diameter of the Venturi tube is between 50-250mm；Throat and upstream tube
The diameter of road or downstream pipe ratio is between 0.4-0.75；The contraction angular region of contraction section is 16-25 °；The expansion of expansion segment
Angle is between 7-15 °；The length range of throat is in 300-600mm.
The beneficial effects of the present invention are: being in contrast to the prior art, multiphase flow metering detection system provided by the invention
System, capacitance chromatography imaging (ECT) technology, electrical resistance tomography (ERT) technology, ultrasonic detecting technology are combined with venturi,
Multiphase flow rates are solved using the combined signal of each sensor；And by each sensor design be standardized module form, make
Its position on venturi can flexibly change, and provide accurate survey by adjusting Multiphase Flow of the measurement position to different flow patterns
Amount；Simple with structure, signal extraction is stablized, the advantages that response frequency is high.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram that multiphase flow metering detection system of the present invention unifies preferred embodiment；And
Fig. 2 is the working principle diagram of detection system in Fig. 1 embodiment.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is described in further detail.It is emphasized that following implement
Example is merely to illustrate the present invention, but is not defined to the scope of the present invention.Likewise, following embodiment is only portion of the invention
Point embodiment and not all embodiments, institute obtained by those of ordinary skill in the art without making creative efforts
There are other embodiments, shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram that multiphase flow metering detection system of the present invention unifies preferred embodiment, the inspection
Examining system includes but is not limited to following structure composition: Venturi tube 100, pressure module (2,6,10,11), capacitance chromatography imaging mould
Block (3,7,12), electrical resistance tomography module (4,8,13), ultrasound detection module (5,9,14) and data acquisition and procession list
Member 20.
Specifically, Venturi tube 100 includes upstream 21, contraction section 1, throat 22, expansion segment 23 and downstream tube
Road 24.Wherein, contraction section 1 is set between upstream 21 and throat 22, expansion segment 23 be set to throat 22 and downstream pipe 24 it
Between.It is connected between upstream 21, contraction section 1, throat 22, expansion segment 23 and downstream pipe 24 by flange arrangement.
The internal diameter of Venturi tube is between 50-250mm；The diameter ratio of throat 22 and upstream 21 or downstream pipe 24
Between 0.4-0.75；The contraction angular region of contraction section 1 is 16-25 °；The angle of flare of expansion segment 23 is between 7-15 °；Throat
Length range is in 300-600mm.
Upstream, throat and the downstream of Venturi tube 100 are respectively arranged with pressure module, capacitance chromatography imaging module, electricity
Resistance layer analyses image-forming module and ultrasound detection module.Preferably, the pressure module, capacitance chromatography imaging module, resistance chromatography at
As module and ultrasound detection module are all made of upstream 21, throat 22 and the downstream pipe of flange arrangement and Venturi tube
24 connections.It should be noted that the upstream of Venturi tube 100, the respectively arranged pressure module of throat and downstream, capacitance chromatographic
Image-forming module, the arrangement form of electrical resistance tomography module and ultrasound detection module and positional relationship are not limited to institute in figure
It the case where showing, can reversing of position and distributing order according to demand.That is the ECT module 7, ERT of venturi throat 22
Module 8, ultrasound detection module 9 and pressure module (6,10) can be exchanged with each other position, to choose suitably stable pressure
Position and imaging position.Equally, in each module in the upstream of venturi and downstream also interchanging positions.
Differential pressure transmitter (16,17,18) are connected between adjacent pressure module, to measure different location pressure module it
Between pressure difference value.Data acquisition and procession unit 20 and pressure module (2,6,10,11), capacitance chromatography imaging module (3,7,
12), electrical resistance tomography module (4,8,13), ultrasound detection module (5,9,14) and differential pressure transmitter (16,17,18) are electrically connected
It connects, for acquiring and handling the data of each functional module.
Be preferably provided at 22 position of venturi throat two pressure modules (6,10), and two pressure modules (6,10) it
Between spacing be not less than 200mm.Preferably, the pressure module 2 of upstream setting and the starting point distance of contraction section 1 are greater than 0.5D；
The pressure module 11 of downstream setting and the end distance of expansion segment 23 are greater than 6D, wherein D is upstream 21 or downstream pipe
24 interior diameter.
It is further preferred that the detection system further includes pressure transmitter 15 and temperature transmitter 19, the pressure transmitter
15 are specifically set in Venturi tube upstream 21, for detecting the pressure value of Venturi tube upstream position.Temperature transmitter
19 are specifically set on Venturi tube downstream pipe 24, for detecting the temperature value of Venturi tube downstream position.Pass through venturi
The pressure transmitter 15 of 100 upstream of pipe and the temperature transmitter 19 in 100 downstream of Venturi tube measure the pressure and temperature of fluid, lead to
Cross the density of gas phase that the information can be calculated in multiphase flow.
After contraction section 1 of the oil-gas-water multiphase flow by Venturi tube, oil-water two-phase will form emulsification under acceleration
Liquid causes multiphase flow to become cyclic annular or slug type vapor-liquid two phases flowing.In this case, the momentum differential side of vapor-liquid two phases
Journey can be indicated by formula (1) and (2).
Wherein, density of gas phase is calculated by the pipeline pressure that pressure transmitter 15 is surveyed；Liquid phase is the mixture of water and oil,
Its density can be by aqueous measured by ECT and ERT sensor (i.e. capacitance chromatography imaging module and electrical resistance tomography module)
Rate and oil content obtain.Due in actual measurement on pipeline section only have unique static pressure measurement, can by liquid phase with
The static pressure of gas phase is considered as equal.It can be obtained after (1) (2) two formula is merged at this time:
Wherein, WGFor gas phase mass flow, WLFor liquid phase quality flow, A is the circulation area of gas phase and liquid phase, AGIt is gas
Phase circulation area, ALIt is liquid phase circulation area, UGFor the true flow velocity of gas phase, ULFor the true flow velocity of liquid phase, τGWBetween gas phase and tube wall
Shear stress, τiShear stress between gas phase and liquid film, τLWIt is the shear stress between liquid phase and tube wall, SGWFor pipeline section
The length that upper gas phase is contacted with tube wall, SLWIt is the contact length of liquid phase and tube wall, SiIt is contacted for gas phase on pipeline section with liquid film
Length, angle, θ refers to formed acute angle between pipeline and horizontal plane, and p is the momentum of liquid and gas；X is that the flow direction of fluid is long
Degree, dx is to flow to spatial mesh size；G is acceleration of gravity；ρ is density, and subscript (G L) indicates gas phase or liquid phase.
In above formula, in addition to gas phase and liquid phase quality flow WGWith WLOutside, remaining parameter can by ECT module (7,12),
The measuring signal of ERT module (8,13) and ultrasound detection module (9,14) obtains.Above formula is used to describe throat 22 and is expanded
The pressure drop of section 23 is opened, can be obtained two about WGWith WLIndependent equation.Meanwhile the larynx after being lengthened using 17 Duis of differential pressure transmitter
Portion's pressure drop measures, and obtains irrecoverable pressure drop of the fluid in straight tube；Using differential pressure transmitter 18 to venturi expansion segment
23 differential pressure measures.Solving equation group can be obtained the value of gas phase flow rate Yu liquid phase flow.
On this basis, using the sensing module of throat, (capacitance chromatography imaging module 7, surpasses electrical resistance tomography module 8
Sound detection module 9) with the sensing module in venturi downstream (capacitance chromatography imaging module 12, electrical resistance tomography module 13, ultrasound
Detection module 14) moisture content in liquid phase is detected, it can be obtained the water flow in liquid phase so as to find out oil-gas-water three
Phase flow rate.Specific calculation process is referring to Fig. 2, Fig. 2 is the working principle diagram of detection system in Fig. 1 embodiment.
Different flow patterns will generate different pressure drops in the contraction section 1 of venturi.The present invention is right by differential pressure transmitter 16
1 pressure drop of venturi contraction section, which measures, can be obtained the overall presure drop that fluid is generated in the part.Pass through the sensing of venturi upstream
The pressure of device cluster (capacitance chromatography imaging module 3, electrical resistance tomography module 4, ultrasound detection module 5) and venturi contraction section 1
Drop measuring device (differential pressure transmitter 16) can incoming flow situation to multiphase flow, carry out accurate judgement to flow calculation model into
Row targetedly optimization.
In the embodiment, capacitance chromatography imaging (ECT) technology, electrical resistance tomography (ERT) technology are mutually tied with venturi
It closes, while the ultrasonic detecting technology for being aided with measurable thickness of liquid film measures oil-gas-water multiphase flow rates.The present invention can lead to
It crosses and the electricity imaging sensor of venturi difference key position is set local section is mutually distributed with ultrasonic sensor and liquid
Film thickness is identified that these information can help to judge multiphase flow pressure drop producing cause in venturi.And then multistage can be passed through
Differential pressure signal establishes the flow that solution of equations goes out oil-gas-water three-phase.In addition, also by each sensor design in the inventive embodiments
For standardized module form, it change its position on venturi can flexibly, by adjusting measurement position to different flow patterns
Multiphase Flow provides precise measurement.The advantages that detection system has structure simple, and signal extraction is stablized, and response frequency is high.
The foregoing is merely some embodiments of the invention, are not intended to limit the scope of the invention, all benefits
The equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other phases
The technical field of pass, is included within the scope of the present invention.
Claims (7)
1. a kind of multiphase flow metering detection system, which is characterized in that the detection system includes Venturi tube, pressure module, electricity
Hold tomography module, electrical resistance tomography module, ultrasound detection module and data acquisition and procession unit；The venturi
Upstream, throat and the downstream of pipe are respectively arranged with the pressure module, the capacitance chromatography imaging module, resistance chromatography
Image-forming module and the ultrasound detection module are connected with differential pressure transmitter between the adjacent pressure module, to measure not
With the pressure difference value between position pressure module；The data acquisition and procession unit and the pressure module, the capacitor layers
Image-forming module, the electrical resistance tomography module, the ultrasound detection module and differential pressure transmitter electrical connection are analysed, is used for
Acquire and handle the data of each functional module；
Wherein, it is equipped with contraction section between the upstream and throat of the Venturi tube, is equipped with and expands between throat and downstream pipe
Open section；The pressure module is separately positioned on upstream, throat and downstream pipe；
The throat of the Venturi tube sets there are two pressure module, which is arranged along the direction of upstream to downstream,
And the spacing between two pressure modules is not less than 200mm；
The pressure module of the upstream is set and the throat, pressure module close to the upstream are set
Between the differential pressure transmitter that connects be used to measure the pressure drop of the contraction section；
The differential pressure transmitter connected between two pressure modules of the throat is arranged in be used to measure throat's pressure drop, with
Obtain irrecoverable pressure drop of the fluid in straight tube；
Be arranged in the throat, close to the downstream pipe pressure module with the pressure module of the downstream pipe is set
Between the differential pressure transmitter that connects be used to measure the differential pressure of the expansion segment；
The parameter of each functional module measurement meets following equation:Wherein, WGFor gas phase quality stream
Amount, WLFor liquid phase quality flow, A is the circulation area of gas phase and liquid phase, AGIt is gas phase circulation area, ALIt is liquid phase circulation area,
UGFor the true flow velocity of gas phase, ULFor the true flow velocity of liquid phase, τGWShear stress between gas phase and tube wall, τLWIt is between liquid phase and tube wall
Shear stress, SGWFor the length that gas phase on pipeline section is contacted with tube wall, SLWIt is the contact length of liquid phase and tube wall, angle, θ
Refer to that formed acute angle between pipeline and horizontal plane, p are the momentum of liquid and gas；X is the length that flows to of fluid, and dx is that flow direction is empty
Between step-length；ρ is density, and subscript G indicates gas phase, and subscript L indicates liquid phase；
Above formula is used to describe the pressure drop of throat and expansion segment, can be obtained two about WGWith WLIndependent equation solves the party
Journey group can be obtained the value of gas phase flow rate Yu liquid phase flow, reuse the sensing module of throat and the sensing module in venturi downstream
Moisture content in liquid phase is detected, can be obtained the water flow in liquid phase so as to find out oil gas water three phase flow amount.
2. detection system according to claim 1, which is characterized in that the detection system further includes being set in Venturi tube
The pressure transmitter of trip, the pressure transmitter are used to detect the pressure value of Venturi tube upstream position.
3. detection system according to claim 2, which is characterized in that detection system further includes being set to Venturi tube downstream
Temperature transmitter, the temperature transmitter are used to detect the temperature value of Venturi tube downstream position.
4. detection system according to claim 1, which is characterized in that the upstream, the contraction section, the larynx
It is connected between portion, the expansion segment and the downstream pipe by flange arrangement.
5. detection system according to claim 4, which is characterized in that the pressure module of upstream setting and the starting of contraction section
End distance is greater than 0.5D；Downstream setting pressure module and expansion segment end distance be greater than 6D, wherein D be upstream or
The interior diameter of person's downstream pipe.
6. detection system according to claim 4, which is characterized in that the pressure module, the capacitance chromatography imaging mould
Block, the electrical resistance tomography module and the ultrasound detection module are all made of the upstream of flange arrangement Yu the Venturi tube
Pipeline, throat and downstream pipe connection.
7. detection system according to claim 4, which is characterized in that the internal diameter of the Venturi tube 50-250mm it
Between；The diameter of throat and upstream or downstream pipe ratio is between 0.4-0.75；The contraction angular region of contraction section is 16-
25°；The angle of flare of expansion segment is between 7-15 °；The length range of throat is in 300-600mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106840294A (en) * | 2017-04-07 | 2017-06-13 | 深圳市联恒星科技有限公司 | A kind of multiphase flow metering detecting system |
| CN108894769A (en) * | 2018-04-18 | 2018-11-27 | 中国石油天然气股份有限公司 | Integrated differential pressure type gas-liquid two-phase flow wellhead monitoring device |
| CN111505066B (en) * | 2020-04-29 | 2021-02-26 | 浙江大学 | Three-dimensional electric capacity tomography device of flow in cryogenic fluid venturi |
| CN112392460A (en) * | 2020-11-24 | 2021-02-23 | 深圳市联恒星科技有限公司 | Method and system for detecting small-flow oil-gas-water multiphase flow |
| CN112556767A (en) * | 2020-12-07 | 2021-03-26 | 南通联太能源装备科技有限公司 | Hydrate multiphase pipe flow pipeline loop parameter comprehensive test system |
| CN112556756A (en) * | 2020-12-08 | 2021-03-26 | 深圳市联恒星科技有限公司 | Quick separation type multiphase flow metering and detecting system |
| CN112649054A (en) * | 2021-01-11 | 2021-04-13 | 深圳市联恒星科技有限公司 | Oil-gas-water three-phase flow real-time online detection system |
| CN115112725B (en) * | 2021-03-23 | 2025-04-22 | 中国科学院大连化学物理研究所 | A mobile capacitance tomography sensor and imaging device |
| CN114324408A (en) * | 2021-12-15 | 2022-04-12 | 天津大学 | Moisture content measuring device and method based on microwave electrode sensor |
| CN114777864B (en) * | 2022-04-27 | 2025-06-06 | 天津大学 | A liquid-solid two-phase flow measurement method based on acoustic-electric dual-mode fusion |
| CN115201226B (en) * | 2022-07-11 | 2024-10-01 | 天津大学 | A dual-parameter measurement method for oil-water two-phase flow |
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| NO324812B1 (en) * | 2006-05-05 | 2007-12-10 | Multi Phase Meters As | Method and apparatus for tomographic multiphase flow measurements |
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| CN2699248Y (en) * | 2004-05-15 | 2005-05-11 | 浙江大学 | Oil-water double phase flow measuring apparatus based on standard Venturi tube and turbine flow meter |
| CN101178347A (en) * | 2007-11-15 | 2008-05-14 | 天津大学 | Slit Venturi throttling device and gas-liquid two-phase flow measurement system |
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