CN107290008A - Orifice vortex street gas-liquid metering device and calculation method thereof - Google Patents
Orifice vortex street gas-liquid metering device and calculation method thereof Download PDFInfo
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- CN107290008A CN107290008A CN201710512243.7A CN201710512243A CN107290008A CN 107290008 A CN107290008 A CN 107290008A CN 201710512243 A CN201710512243 A CN 201710512243A CN 107290008 A CN107290008 A CN 107290008A
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- 239000007788 liquid Substances 0.000 title claims abstract description 141
- 238000004364 calculation method Methods 0.000 title claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 43
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000000205 computational method Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 2
- 239000012263 liquid product Substances 0.000 claims 1
- 239000003595 mist Substances 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/40—Details of construction of the flow constriction devices
- G01F1/42—Orifices or nozzles
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a pore plate vortex street gas-liquid metering device and a calculation method thereof, and the pore plate vortex street gas-liquid metering device comprises a vortex gas-liquid mixer, a pore plate throttling device and a vortex street flowmeter, wherein the vortex gas-liquid mixer, the pore plate throttling device and the vortex street flowmeter are connected, a pressure transmitter is arranged between the vortex gas-liquid mixer and the pore plate throttling device, a differential pressure transmitter is arranged on the pore plate throttling device, a temperature transmitter is arranged between the pore plate throttling device and the vortex street flowmeter, the pressure transmitter, the differential pressure transmitter, the temperature transmitter and the vortex street flowmeter respectively transmit measuring signals to a gas-liquid flow calculator through signal lines, and gas and liquid flow calculation, output and display are carried out through the gas-liquid flow calculator. The invention arranges a rotational flow gas-liquid mixer at the front section of the device to ensure that gas-liquid two phases are uniformly mixed to approximate mist flow, so that the calculated working condition average density of the mixed fluid is close to a true value, and the flow measurement precision is improved.
Description
Technical field
The invention belongs to the technical field of flow measurement, and in particular to a kind of gas-liquid two-phase applied to gas well does not separate survey
Measure device and its computational methods.
Background technology
Traditional gas field one-well metering mainly uses gas-liquid separation metering process, and flow is complicated, and investment is high.In recent years, state
Interior gas field applies all kinds of gas-liquid two-phases and does not separate metering device, is directly used in the metering of gas well mouth gas-liquid two-phase, domestic existing
Flowmeter calculates liquid holdup by measuring diaphragm differential pressure fluctuation range value (relative variance for calculating differential pressure square root), and then obtains
Outlet flow quantity, but due to the influence of the factors such as fluid machinery magazine, airflow fluctuation, differential pressure pick-up precision, differential pressure fluctuation amplitude
Value can not react liquid holdup completely, cause error in dipping to increase, restricted application.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of orifice plate vortex street
Gas-liquid two-phase metering device and its computational methods, solve gas well gas-liquid two-phase on-line metering problem, instead of traditional separate measurement
Technique, simplification of flowsheet, reduction investment.
The present invention uses following technical scheme：
A kind of orifice plate vortex street gas-liquid metering device, including for biphase gas and liquid flow to be uniformly mixed into the cyclone gas of mist flow
Liquid mixer, the throttle orifice plate apparatus for producing differential pressure and the vortex-shedding meter for measuring fluid-mixing operating mode volume flow,
The cyclone gas-liquid blender, throttle orifice plate apparatus and vortex-shedding meter connection, the cyclone gas-liquid blender and orifice throttle
It is provided between device on pressure transmitter, the throttle orifice plate apparatus and is provided with differential pressure transmitter, in orifice throttle dress
Put and temperature transmitter is provided between vortex-shedding meter, the pressure transmitter, differential pressure transmitter, temperature transmitter and vortex street
Flowmeter is respectively transmitted measurement signal to gas-liquid Flow Meter Based by signal wire, is carried out by the gas-liquid Flow Meter Based
Air-liquid flow rate calculation, output and display.
Further, the gas-liquid Flow Meter Based is arranged in the differential pressure transmitter.
Further, the cyclone gas-liquid blender, throttle orifice plate apparatus and vortex-shedding meter are sequentially connected using flange.
Further, the cyclone gas-liquid blender, vortex-shedding meter and throttle orifice plate apparatus are sequentially connected using flange.
The invention also discloses a kind of computational methods of orifice plate vortex street gas-liquid metering device, comprise the following steps：
S1, the gas-liquid two-phase fluid come out from Wellbore of Gas Wells make gas-liquid mixed into approximate vaporific by cyclone gas-liquid blender
Gas-liquid mixture fluid；
Gas-liquid mixture fluid described in S2, step S1 passes sequentially through throttle orifice plate apparatus and vortex-shedding meter, passes through what is measured
Differential pressure, pressure, temperature parameter, obtain fluid-mixing mass flow QmWith fluid-mixing operating mode volume flow Qv；
S3, by the pressure sensor of setting, differential pressure pick-up, temperature sensor, vortex-shedding meter by the fluid measured
Differential pressure, fluid temperature (F.T.), fluid condition volume flow parameter are transmitted to gas-liquid flow rate calculation by signal wire before and after pressure, orifice plate
Instrument；
The parameter that S4, the gas-liquid Flow Meter Based are obtained according to step S3 calculates output each phase operating mode volume flow of air-liquid
Measure QGasAnd QLiquid, Fluid pressure, temperature parameter.
Further, in step S2, the fluid-mixing mass flow QmIt is calculated as follows：
Wherein, C is efflux coefficient, and β is throttling arrangement diameter ratio, and the ε coefficients of expansion, d is orifice plate aperture, and ρ is gas-liquid mixed
Fluid condition averag density, Δ P is differential pressure.
Further, in step S2, the fluid-mixing operating mode volume flow QvIt is calculated as follows：
Wherein, C is efflux coefficient, and β is throttling arrangement diameter ratio, and the ε coefficients of expansion, d is orifice plate aperture, and ρ is gas-liquid mixed
Fluid condition averag density, Δ P is differential pressure.
Further, in step S4, each phase operating mode volume flow Q of air-liquidGasAnd QLiquidIt is calculated as follows：
Wherein, ρ is fluid-mixing operating mode averag density, ρGas、ρLiquidFor the single-phase operating mode density of air-liquid, QvFor the single-phase work of air-liquid
Condition volume flow sum, according to known Fluid pressure, temperature parameter, gas-liquid operating mode volume flow can be drawn by formula (6), (7)
Amount.
Further, the fluid-mixing operating mode averag density ρ is calculated as follows：
Wherein, Δ P is differential pressure, and C is efflux coefficient, and β is throttling arrangement diameter ratio, and the ε coefficients of expansion, d is orifice plate aperture, Qv
For fluid-mixing operating mode volume flow.
Compared with prior art, the present invention at least has the advantages that：
Orifice plate vortex street gas-liquid metering device of the present invention measures gas-liquid two by the way that orifice flowmeter is connected with vortex-shedding meter
Phase flow rate, and device leading portion is provided with cyclone gas-liquid blender, gas-liquid two-phase is uniformly mixed approximate mist flow, make to calculate
Fluid-mixing operating mode averag density be more nearly actual value, improve flow measurement precision.
Further, gas-liquid Flow Meter Based can be arranged in differential pressure transmitter with modularization, simplify structure.
Further, cyclone gas-liquid blender, throttle orifice plate apparatus and vortex-shedding meter are sequentially connected using flange, and hole
Plate throttling arrangement and the interchangeable installation of vortex-shedding meter, are easy to be installed according to live gas well mouth actual size.
The invention also discloses a kind of orifice plate vortex street gas-liquid computational methods, the biphase gas and liquid flow that will first be come out from Wellbore of Gas Wells
Body is mixed into approximate vaporific gas-liquid mixture fluid by cyclone gas-liquid blender；Gas-liquid mixture fluid is passed sequentially through into orifice plate again
Throttling arrangement and vortex-shedding meter, by the differential pressure measured, pressure, temperature parameter, obtain fluid-mixing mass flow and mixing
Fluid condition volume flow；Then by differential pressure, fluid temperature (F.T.), fluid condition volume flow before and after the Fluid pressure measured, orifice plate
Parameter is transmitted to gas-liquid Flow Meter Based by signal wire, is calculated by gas-liquid flow rate calculation instrument meter and is obtained each phase operating mode volume of air-liquid
Flow, Fluid pressure, temperature parameter, calculate that gas-liquid two-phase flow apparatus structure is simple, cost is low using this method and precision compared with
It is high.
Further, liquid is generally gone out in gas well recovery process, with the Persisting exploitation of gas well, gas well gas production gradually drops
Low, when gas well yield is less than Wellbore of Gas Wells critical liquid carrying flow rate, liquid can not be carried over ground from pit shaft, cause shaft bottom to be accumulated
Liquid, gas well gas production, which declines, even to stop production.If grasping gas well gas, flow quantity in real time, it just can timely and effectively take and be directed to
Property water pumping gas production production measure, gas well is kept normal production.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is orifice plate vortex street gas-liquid metering structure drawing of device of the present invention；
Fig. 2 is orifice plate vortex street gas-liquid metering device installation procedure of the present invention.
Wherein：1. cyclone gas-liquid blender；2. throttle orifice plate apparatus；3. pressure transmitter；4. differential pressure transmitter；5. temperature
Transmitter；6. vortex-shedding meter；7. gas-liquid Flow Meter Based；8. signal wire.
Embodiment
Referring to Fig. 1, the invention discloses a kind of orifice plate vortex street gas-liquid two-phase metering device, including for by gas-liquid two-phase
Stream is uniformly mixed into the cyclone gas-liquid blender 1 of mist flow, the throttle orifice plate apparatus 2 for producing differential pressure and measurement mixed flow
The vortex-shedding meter 6 of body operating mode volume flow.
The cyclone gas-liquid blender 1, throttle orifice plate apparatus 2 and vortex-shedding meter 6 are sequentially connected using flange, the rotation
It is provided between gas liquid mixer 1 and throttle orifice plate apparatus 2 on pressure transmitter 3, the throttle orifice plate apparatus 2 and is provided with difference
Pressure transmitter 4, sets temperature transmitter 5 between the throttle orifice plate apparatus 2 and vortex-shedding meter 6,
Fluid-mixing produces differential pressure by the throttle orifice plate apparatus 2, passes through pressure transmitter 3, differential pressure transmitter 4, temperature
Degree transmitter 5 and vortex-shedding meter 6 measure differential pressure, temperature and fluid condition volume flow before and after hydrostatic pressure, orifice plate respectively
Parameter, the pressure transmitter 3, differential pressure transmitter 4, temperature transmitter 5 and vortex-shedding meter 6 will be surveyed by signal wire 8 respectively
Amount signal is transmitted to gas-liquid Flow Meter Based 7, is carried out air-liquid flow rate calculation, output by the gas-liquid Flow Meter Based 7 and is shown
Show.
It is preferred that, gas-liquid Flow Meter Based 7 can modularization be built in the gauge outfit of differential pressure transmitter 4, be easy to simplify knot
Structure.
It is preferred that, throttle orifice plate apparatus 2 and vortex-shedding meter 6 interchanging positions are installed.
Fig. 1 and Fig. 2 are referred to, orifice plate vortex street gas-liquid two-phase computational methods of the present invention are as follows：
S1, the gas-liquid two-phase fluid come out from Wellbore of Gas Wells enter the present apparatus after a series of elbows, valve, pass through first
Cyclone gas-liquid blender 1, makes the approximate mist flow of gas-liquid mixed；
S2 and then process throttle orifice plate apparatus and vortex-shedding meter, gas-liquid mixture fluid pass through the throttle orifice plate apparatus
By the differential pressure measured, pressure, temperature parameter, fluid-mixing mass flow can be drawn；
The mass flow Q of the throttle orifice plate apparatusmSee below formula：
Wherein, C is efflux coefficient, and β is throttling arrangement diameter ratio, and the ε coefficients of expansion, d is orifice plate aperture, when throttling arrangement one
Fixed, when known to Fluid pressure, temperature, above parameter can be calculated directly；ρ is gas-liquid mixture fluid operating mode averag density, is
Unknown quantity；Δ P is differential pressure, is measured by differential pressure pick-up.
The vortex-shedding meter can provide fluid-mixing operating mode volume flow Qv, fluid passes through throttle orifice plate apparatus 2 and whirlpool
The flow of street flowmeter should be equal, and following formula is can obtain according to formula (1)：
Wherein, C is efflux coefficient, and β is throttling arrangement diameter ratio, and the ε coefficients of expansion, d is orifice plate aperture, when throttling arrangement one
Fixed, when known to Fluid pressure, temperature, above parameter can be calculated directly；ρ is gas-liquid mixture fluid operating mode averag density, is
Unknown quantity；Δ P is differential pressure, is measured by differential pressure pick-up.
S3, set pressure sensor, differential pressure pick-up, temperature sensor, vortex-shedding meter by the Fluid pressure measured,
Differential pressure, fluid temperature (F.T.), fluid condition volume flow parameter are transmitted to gas-liquid Flow Meter Based by signal wire before and after orifice plate；
S4, gas-liquid Flow Meter Based according to method of calculating flux calculate output air-liquid each phase volume flow, Fluid pressure,
The parameters such as temperature.
Fluid-mixing operating mode averag density ρ can be calculated according to formula (2) and see below formula：
Fluid-mixing operating mode volume flow is the single-phase operating mode volume flow sum Q of air-liquidvIt is as follows：
Qv=QGas+QLiquid (4)
Fluid-mixing mass flow is the single-phase mass flow sum Q of air-liquidvρ is as follows：
Qvρ=QGasρGas+QLiquidρLiquid (5)
The single-phase mark condition density of air-liquid can be measured by sampling, the pressure that is measured according to pressure, temperature sensor, temperature
Parameter, can calculate the single-phase operating mode density p of air-liquidGas、ρLiquid, each phase operating mode of air-liquid can be calculated by formula (4), (5) joint solution
Volume flow.
Wherein, ρ is fluid-mixing operating mode averag density, ρGas、ρLiquidFor the single-phase operating mode density of air-liquid, QvFor the single-phase work of air-liquid
Condition volume flow sum, according to known Fluid pressure, temperature parameter, gas-liquid operating mode volume flow can be drawn by formula (6), (7)
Amount.
Simple using above method measurement gas well biphase gas and liquid flow amount apparatus structure, cost is low, and measuring accuracy is higher.
The technological thought of above content only to illustrate the invention, it is impossible to which protection scope of the present invention is limited with this, it is every to press
According to technological thought proposed by the present invention, any change done on the basis of technical scheme each falls within claims of the present invention
Protection domain within.
Claims (9)
1. a kind of orifice plate vortex street gas-liquid metering device, it is characterised in that including vaporific for biphase gas and liquid flow to be uniformly mixed into
The cyclone gas-liquid blender (1) of stream, the throttle orifice plate apparatus (2) for producing differential pressure and measurement fluid-mixing operating mode volume flow
The vortex-shedding meter (6) of amount, the cyclone gas-liquid blender (1), throttle orifice plate apparatus (2) and vortex-shedding meter (6) connection, institute
State and pressure transmitter (3), the throttle orifice plate apparatus are provided between cyclone gas-liquid blender (1) and throttle orifice plate apparatus (2)
(2) differential pressure transmitter (4) is provided with, temperature change is provided between the throttle orifice plate apparatus (2) and vortex-shedding meter (6)
Device (5) is sent, the pressure transmitter (3), differential pressure transmitter (4), temperature transmitter (5) and vortex-shedding meter (6) pass through respectively
Signal wire (8) transmits measurement signal to gas-liquid Flow Meter Based (7), and air-liquid is carried out by the gas-liquid Flow Meter Based (7)
Flow rate calculation, output and display.
2. a kind of orifice plate vortex street gas-liquid metering device according to claim 1, it is characterised in that the gas-liquid flow rate calculation
Instrument (7) is arranged in the differential pressure transmitter (4).
3. a kind of orifice plate vortex street gas-liquid metering device according to claim 1, it is characterised in that the cyclone gas-liquid mixing
Device (1), throttle orifice plate apparatus (2) and vortex-shedding meter (6) are sequentially connected using flange.
4. a kind of orifice plate vortex street gas-liquid metering device according to claim 1, it is characterised in that the cyclone gas-liquid mixing
Device (1), vortex-shedding meter (6) and throttle orifice plate apparatus (2) are sequentially connected using flange.
5. a kind of method that utilization claim 1 described device calculates orifice plate vortex street gas-liquid, it is characterised in that including following step
Suddenly：
S1, the gas-liquid two-phase fluid come out from Wellbore of Gas Wells make gas-liquid mixed into approximate vaporific gas by cyclone gas-liquid blender
Liquid fluid-mixing；
Gas-liquid mixture fluid described in S2, step S1 passes sequentially through throttle orifice plate apparatus and vortex-shedding meter, by the differential pressure that measures,
Pressure, temperature parameter, obtain fluid-mixing mass flow QmWith fluid-mixing operating mode volume flow Qv；
S3, by the pressure sensor of setting, differential pressure pick-up, temperature sensor, vortex-shedding meter by the Fluid pressure measured,
Differential pressure, fluid temperature (F.T.), fluid condition volume flow parameter are transmitted to gas-liquid Flow Meter Based by signal wire before and after orifice plate；
The parameter that S4, the gas-liquid Flow Meter Based are obtained according to step S3 calculates output each phase operating mode volume flow Q of air-liquidGas
And QLiquid, Fluid pressure, temperature parameter.
6. a kind of orifice plate vortex street gas-liquid computational methods according to claim 5, it is characterised in that in step S2, described mixed
Close liquid mass flow QmIt is calculated as follows：
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<mi>Q</mi>
<mi>m</mi>
</msub>
<mo>=</mo>
<mfrac>
<mi>C</mi>
<msqrt>
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<mn>1</mn>
<mo>-</mo>
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<mi>&beta;</mi>
<mn>4</mn>
</msup>
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</msqrt>
</mfrac>
<mi>&epsiv;</mi>
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</mfrac>
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<mi>d</mi>
<mn>2</mn>
</msup>
<msqrt>
<mrow>
<mn>2</mn>
<mi>&Delta;</mi>
<mi>P</mi>
<mi>&rho;</mi>
</mrow>
</msqrt>
</mrow>
Wherein, C is efflux coefficient, and β is throttling arrangement diameter ratio, and the ε coefficients of expansion, d is orifice plate aperture, and ρ is gas-liquid mixture fluid
Operating mode averag density, Δ P is differential pressure.
7. a kind of orifice plate vortex street gas-liquid computational methods according to claim 5, it is characterised in that in step S2, described mixed
Close fluid condition volume flow QvIt is calculated as follows：
<mrow>
<msub>
<mi>Q</mi>
<mi>v</mi>
</msub>
<mo>=</mo>
<mfrac>
<mi>C</mi>
<msqrt>
<mrow>
<mn>1</mn>
<mo>-</mo>
<msup>
<mi>&beta;</mi>
<mn>4</mn>
</msup>
</mrow>
</msqrt>
</mfrac>
<mi>&epsiv;</mi>
<mfrac>
<mi>&pi;</mi>
<mn>4</mn>
</mfrac>
<msup>
<mi>d</mi>
<mn>2</mn>
</msup>
<msqrt>
<mrow>
<mn>2</mn>
<mi>&Delta;</mi>
<mi>P</mi>
<mo>/</mo>
<mi>&rho;</mi>
</mrow>
</msqrt>
</mrow>
Wherein, C is efflux coefficient, and β is throttling arrangement diameter ratio, and the ε coefficients of expansion, d is orifice plate aperture, and ρ is gas-liquid mixture fluid
Operating mode averag density, Δ P is differential pressure.
8. a kind of orifice plate vortex street gas-liquid computational methods according to claim 1, it is characterised in that in step S4, the gas,
Each phase operating mode volume flow Q of liquidGasAnd QLiquidIt is calculated as follows：
Wherein, ρ is fluid-mixing operating mode averag density, ρGas、ρLiquidFor the single-phase operating mode density of air-liquid, QvFor the single-phase operating mode body of air-liquid
Product flow sum, according to known Fluid pressure, temperature parameter, gas-liquid operating mode volume flow can be drawn by formula (6), (7).
9. a kind of orifice plate vortex street gas-liquid computational methods according to claim 8, it is characterised in that the fluid-mixing operating mode
Averag density ρ is calculated as follows：
<mrow>
<mi>&rho;</mi>
<mo>=</mo>
<mi>&Delta;</mi>
<mi>P</mi>
<msup>
<mrow>
<mo>(</mo>
<mfrac>
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<msqrt>
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</msqrt>
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</mrow>
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<mo>-</mo>
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<mi>&beta;</mi>
<mn>4</mn>
</msup>
</mrow>
</msqrt>
</mfrac>
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</mfrac>
<msup>
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</msup>
<mo>)</mo>
</mrow>
<mn>2</mn>
</msup>
<mo>/</mo>
<msup>
<msub>
<mi>Q</mi>
<mi>v</mi>
</msub>
<mn>2</mn>
</msup>
</mrow>
Wherein, Δ P is differential pressure, and C is efflux coefficient, and β is throttling arrangement diameter ratio, and the ε coefficients of expansion, d is orifice plate aperture, QvIt is mixed
Close fluid condition volume flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710512243.7A CN107290008A (en) | 2017-06-28 | 2017-06-28 | Orifice vortex street gas-liquid metering device and calculation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710512243.7A CN107290008A (en) | 2017-06-28 | 2017-06-28 | Orifice vortex street gas-liquid metering device and calculation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896120A (en) * | 2018-08-23 | 2018-11-27 | 中国石油天然气股份有限公司 | Vortex street throttling integrated gas-liquid two-phase flowmeter and application method thereof |
| CN109138926A (en) * | 2018-07-13 | 2019-01-04 | 夏海帮 | A kind of shale gas gas production optimization method |
| CN110296739A (en) * | 2019-06-18 | 2019-10-01 | 中国石油天然气股份有限公司 | Moisture flow measuring device and method |
| CN110608775A (en) * | 2019-09-16 | 2019-12-24 | 中国石油天然气股份有限公司 | Device and method for measuring moisture flow by combining orifice plate and thermal flowmeter |
| CN110878689A (en) * | 2019-11-21 | 2020-03-13 | 西安安森智能仪器股份有限公司 | Gas-liquid metering method and system for well plunger gas lift device |
| CN114199722A (en) * | 2022-01-17 | 2022-03-18 | 石家庄高新区中正仪器仪表有限公司 | Online gas density measurement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138926A (en) * | 2018-07-13 | 2019-01-04 | 夏海帮 | A kind of shale gas gas production optimization method |
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Application publication date: 20171024 |