CN208012684U - Multiphase flow test device based on flowmeter and water-containing machine - Google Patents
Multiphase flow test device based on flowmeter and water-containing machine Download PDFInfo
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- CN208012684U CN208012684U CN201820653029.3U CN201820653029U CN208012684U CN 208012684 U CN208012684 U CN 208012684U CN 201820653029 U CN201820653029 U CN 201820653029U CN 208012684 U CN208012684 U CN 208012684U
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Abstract
The utility model discloses a kind of multiphase flow test device based on mass flowmenter and impedance water-containing machine, including measuring pipeline, the measurement pipeline is equipped with vertical measurement pipe, the Upstream section of the vertical measurement pipe is equipped with mass flowmenter, tract is equipped with aqueous tester, and the mass flowmenter is located at below the aqueous tester.Using the utility model, oil gas water flows through the mass flowmenter and aqueous tester from bottom to top with more uniform state, when avoiding bottom horizontal flow sheet or flowing downward, serious measurement error caused by liquid and gas are layered；Also, due to forming device installation folder layer, all types of sensor and its accessory between flow tube and pillar, it can be directly arranged in device installation interlayer, installation is reliable and stable, and can play protective action to it, in the presence of a harsh environment, it avoids detection device impaired, ensures its service life.
Description
Technical field
The utility model is related to the measuring techniques of multiphase flow, it particularly relates to a kind of measurement device of multiphase flow.
Background technology
It is influenced by global oil price depression and radioactive sources safety management and control, Colombia's oilfield market puts type for low cost is non-
Multiphase flow rates in respect of urgent and vigorous demand, three-phase void fraction is generally less than 30% in this area's crude oil, and liquid phase contains
Water rate is generally higher than 80%.In production, need to be arranged the instruments such as flowmeter, water-containing machine, instrument to its crude oil progress flow, three-phase
The parameters such as (oil, gas and water) moisture content, three-phase void fraction, three-phase liquid holdup, liquid phase (oil, water) moisture content are measured.
Mass flowmenter is to carry out flow measurement by basic principle of coriolis force, is only used for single-phase flow measurement originally.
For the multiphase flow crude oil of gas and water (oil-containing) due to containing gas phase, fluidised form is unstable, has apparent shadow to the measurement of mass flowmenter
It rings, once after traditional quality flowmeter air inlet, measurement result will have a greatly reduced quality.Currently, there are some mass flowmenters
It can tolerate and contain certain gas in medium.As declare can be under the conditions of 25% gassiness for the mass flowmenter of E+H companies
The measurement accuracy for ensureing 3%~5%, to guarantee to measure accurate three-phase hybrid density ρm.In addition to E+H companies,
Corresponding research has all been done by external Agar companies, and some domestic mass flowmenter manufacturers.Mass flowmenter is in this side
The breakthrough in face creates certain technical conditions for mass flow meter measurement multiphase flow.
Impedance water-containing machine is particularly suitable for the case where moisture content is more than 50%.It can accurately be measured under conditions of high-moisture percentage
Three-phase water holding (aqueous) rate Yw。
But according to existing measurement method, the three-phase void fraction, liquid phase moisture content and the actual value that measure differ greatly, and need
Accurate result could be obtained by other technological means and algorithm.Further, since gas phase content is higher in mixed flow,
If it is passed through detecting instrument with bottom horizontal flow sheet state, more apparent layering is will produce between gas-liquid two-phase, this will be significantly reduced
The accuracy of measurement.
Utility model content
In view of this, to solve above one of technical problem, the utility model provide it is a kind of based on flowmeter and
The multiphase flow test device of water-containing machine so that gas-liquid two-phase with mixed state by each instrument, improve the accuracy of measurement.
Technical solution is as follows：
A kind of multiphase flow test device based on mass flowmenter and impedance water-containing machine, including measure pipeline, the measurement pipe
Road is equipped with vertical measurement pipe, and the Upstream section of the vertical measurement pipe is equipped with mass flowmenter, and tract is equipped with aqueous tester,
The mass flowmenter is located at below the aqueous tester.
Using the design, vertical measurement pipe is vertically arranged, and oil gas water is flowed through described from bottom to top with more uniform state
Mass flowmenter and aqueous tester, when avoiding bottom horizontal flow sheet or flowing downward, liquid and gas seriously measure caused by being layered
Error.
Preferably,
Above-mentioned mass flowmenter includes flowmeter tube, and the flowmeter tube is vertically arranged, the upstream port of the flowmeter tube with
The vertical measurement pipe is connected, and the downstream port of the flowmeter tube is connected with the aqueous tester, is installed on the flowmeter tube
There is mass flow measurement module.
Above-mentioned aqueous tester includes water-containing machine pipe, and the water-containing machine pipe is vertically arranged, the upstream port of the water-containing machine pipe with
The downstream port of the flowmeter tube is connected, and the downstream port of the water-containing machine pipe is connected with the vertical measurement pipe, the water-containing machine
Temperature-measuring module, pressure measuring module and aqueous measurement module are installed on pipe.
Above scheme ensure that mixed flow and flow through each instrument with state vertically upward.
It is described to contain between the upstream port of the flowmeter tube and the vertical measurement pipe as further preferred scheme
Between the upstream port and the downstream port of the flowmeter tube of water instrument pipe and the downstream port of the water-containing machine pipe with it is described
Between vertical measurement pipe, docked respectively by flange.
The tube core line of the vertical measurement pipe, flowmeter tube and water-containing machine pipe overlaps.
Above scheme is docked convenient for each pipeline section.
As further preferred embodiment,
The water-containing machine pipe includes throttle pipe, and the both ends of the throttle pipe are connected separately with interlayer casing, the interlayer casing packet
The flow tube of internal layer and the pillar of outer layer are included, it is inside and outside nested therebetween, and form the device installation interlayer of annular, device peace
Clamping layer is docked and is engaged with the tube wall of the throttling tube end, and the inner wall of the throttle pipe is bonded with the outer wall of the flow tube,
The outer wall of the throttle pipe is bonded with the inner wall of the pillar.
The effect of the program is, forms device installation folder layer between flow tube and pillar, all types of sensor and its attached
Belong to accessory, can be directly arranged in device installation interlayer, installation is reliable and stable, and can play protective action to it, in severe ring
Under border, avoids detection device impaired, ensure its service life.
The outer end of the interlayer casing is equipped with transfer tube, and the tube wall of the transfer tube inner end stretches into the device installation interlayer
And be fitted into, the inner wall of the transfer tube is bonded with the outer wall of the flow tube, and the outer wall of the transfer tube and the inner wall of the pillar paste
It closes.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross-sectional view of water-containing machine pipe 31 in Fig. 1；
Fig. 3 is λ-t line charts.
Specific implementation mode
With reference to embodiment and attached drawing, the utility model is described in further detail.
Embodiment 1：
As shown in Figure 1, a kind of multiphase flow test device based on mass flowmenter and impedance water-containing machine, including measure pipeline
10, which is equipped with vertical measurement pipe 11, and the Upstream section of the vertical measurement pipe 11 is equipped with mass flowmenter 20, downstream
Section is equipped with aqueous tester 30, and the mass flowmenter 20 is located at below the aqueous tester 30, multiphase flow followed by
The mass flowmenter 20 and aqueous tester 30.
Specifically, the mass flowmenter 20 includes flowmeter tube 21, the flowmeter tube 21 is vertically arranged, the flowmeter tube
21 upstream port is connected with the vertical measurement pipe 11, and the downstream port of the flowmeter tube 21 connects with the aqueous tester 30
It is logical, mass flow measurement module 22 is installed on the flowmeter tube 21.
The aqueous tester 30 include water-containing machine pipe 31, the water-containing machine pipe 31 is vertically arranged, the water-containing machine pipe 31 it is upper
It swims port and the downstream port of the flowmeter tube 21 is connected, the downstream port of the water-containing machine pipe 31 and the vertical measurement pipe 11
It connects, temperature-measuring module 32, pressure measuring module 33 and aqueous measurement module 34 is installed on the water-containing machine pipe 31.
To improve the steady state of flow of fluid, avoids that sinuous flow occurs, the vertical measurement pipe 11, flowmeter tube 21 and contain
The tube core line of water instrument pipe 31 overlaps.
In conjunction with Fig. 2 as can be seen that as a kind of specific implementation mode, the water-containing machine pipe 31 includes throttle pipe 311, the section
The both ends of flow tube 311 are connected separately with interlayer casing, which includes the flow tube 312 of internal layer and the pillar 313 of outer layer,
Therebetween inside and outside nested, and the device installation interlayer of annular is formed, which installs interlayer and 311 end of the throttle pipe
Tube wall is docked and is engaged, and the inner wall of the throttle pipe 311 is bonded with the outer wall of the flow tube 312, the outer wall of the throttle pipe 311 with
The inner wall of the pillar 313 is bonded；The outer end of the interlayer casing is equipped with transfer tube 314, and the tube wall of 314 inner end of transfer tube is stretched
Enter in the device installation interlayer and be fitted into, the inner wall of the transfer tube 314 is bonded with the outer wall of the flow tube 312, the switching
The outer wall of pipe 314 is bonded with the inner wall of the pillar 313.
It docks and seals by flange between the upstream port of the flowmeter tube 21 and the vertical measurement pipe 11, it is described
It is docked and is sealed and described by flange between the upstream port of water-containing machine pipe 31 and the downstream port of the flowmeter tube 21
It docks and seals by flange between the downstream port of water-containing machine pipe 31 and the vertical measurement pipe 11.
The designing points of the above test device are the setting of pipeline, and do not lie in mass flowmenter 20 and aqueous tester
30 itself, as mass flowmenter 20 therein and aqueous tester 30, can select there are many prior art (such as：China
Patent application 201210186777.2 and 201210350620.9), mass flow measurement module 22 therein, temperature-measuring module
32, pressure measuring module 33 and aqueous measurement module 34 be in the prior art also there are many model, specific name difference, but
Those skilled in the art should not be influenced to understand its this case.The connection of each pipeline and mass flowmenter 20, aqueous survey
The installation of instrument 30 is tried, in the prior art also there are many solution route, it is specially which kind of that applicant, which does not limit, it is expected to the greatest extent may be used
Protection this programme of energy, but this has no effect on those skilled in the art and assembles, debugs to it, has obtained meeting this programme institute
Result to be achieved.
Embodiment 2：
A kind of multiphase flow test method, key are to carry out according to the following steps：
Step 1: test device recorded in setting such as embodiment 1；
Step 2: data acquisition and pretreatment；
First, the three-phase hybrid density ρ under working condition is measured using the mass flowmenter 20m, and contain described in use
Water tester 30 measures the three-phase specific retention Y under working conditionw；
Secondly, under the conditions of calibration, the density of water, oil, gas in three-phase blending agent is measured respectively, then calculates separately its work
Corresponding operating mode water density ρ under the conditions of conditionW, operating mode oil density ρOWith operating mode air tightness ρG；
Finally, it resets one and assumes liquid phase moisture content λ0；
Step 3: by ρW、ρO、λ01. substitution formula, calculates the operating mode density of liquid phase ρ in three-phase blending agentL；
Formula is 1.：ρL=ρW·λ0+ρO·(1-λ0)
Formula 1. in,
ρLIndicate operating mode density of liquid phase, kg/m3；
ρWIndicate operating mode water density, kg/m3；
ρOIndicate operating mode oil density, kg/m3；
λ0It indicates to assume liquid phase moisture content, %；
Step 4: by ρL、ρm、ρG2. substitution formula, calculates three-phase void fraction α；
Formula is 2.：
Formula 2. in,
ρmIndicate the three-phase hybrid density ρ under working conditionm, kg/m3；
ρGIndicate operating mode air tightness, kg/m3；
α indicates three-phase void fraction, %；
Step 5: by α, Yw3. substitution formula, calculates the practical liquid phase moisture content λ under working condition；
Formula is 3.：
Formula 3. in,
α indicates three-phase void fraction, %；
YwIndicate the three-phase specific retention under working condition, %；
λ indicates the practical liquid phase moisture content under working condition, %.
Step 6: practical liquid phase moisture content λ and hypothesis liquid phase moisture content λ0, set maximum allowed between the two
Difference k carries out result identification；
Dang ∣ λ-λ0When ∣≤k, it is determined as λ=λ0, λ and α is exported, liquid phase moisture content and three-phase void fraction are obtained；
Dang ∣ λ-λ0When ∣ > k, it is determined as λ ≠ λ0, liquid phase moisture content λ is assumed again pair0Assignment makes it level off to the value of λ,
It repeats Step 2: three, four, Zhi Zhi ∣ λ-λ0∣≤k, then λ and α is exported, obtain liquid phase moisture content and three-phase void fraction.
Based on above step, 4. or 5. formula can also acquire fluid flow Q by formulal,
Formula is 4.：Ql=Qt*(1-α)
Formula is 5.：
In step 2, three-phase can be measured according to a conventional method respectively first under standard conditions (referring generally to normal temperature and pressure conditions)
The density of water, oil, gas in blending agent corresponds to the temperature and pressure under working condition, and the density of water, oil, gas can change,
Concrete numerical value can table look-up or by formula ρ1T1P1Z=ρ2T2P2Conversion calculates.
According to actual conditions, sets practical liquid phase moisture content λ and assume liquid phase moisture content λ0Between maximum difference k (such as
0.001,0.02,0.5 or even 1), the selection of k values can be artificial assignment, this is consistent with the error range that it can be received.
Test example：
Selection is measured wherein oily, gas and water content and (is chosen three-phase in this test example respectively with the multiphase flow of certain specification
Moisture content 60%, three-phase oil content 15%, three-phase void fraction 25%), the measurement pipeline 10 is continuously pumped into after mixing, by by real
The method for applying the offer of example 2 measures, and sets practical liquid phase moisture content λ and assumes liquid phase moisture content λ0Between maximum difference k=
0.01, a ρ is recorded per 60sm、Yw, temperature T and pressure P, continue 15min, obtain 15 groups of data, calculate separately to obtain liquid phase and contain
Water rate λ draws the line chart of λ and time t, and the results are shown in Figure 3.
As seen from Figure 3, in continuous measure, the liquid phase moisture content λ that is measured by method provided by the utility model
Close to accurate liquid phase moisture content (80%), and high stability.
Thus be not difficult to find out the utility model has the beneficial effects that：Vertical measurement pipe is vertically arranged, and oil gas water is with more
Even state flows through the mass flowmenter and aqueous tester from bottom to top, when avoiding bottom horizontal flow sheet or flowing downward, liquid phase
Serious measurement error caused by being layered with gas phase；Also, it is all types of due to forming device installation folder layer between flow tube and pillar
Sensor and its accessory, can be directly arranged in device installation interlayer, installation is reliable and stable, and protection can be played to it
Effect avoids detection device impaired, ensures its service life in the presence of a harsh environment.
Finally, it should be noted that foregoing description is only the preferred embodiment of the utility model, the common skill of this field
Art personnel are under the enlightenment of the utility model, under the premise of without prejudice to the utility model aims and claim, can make
Expression, such transformation are each fallen within the scope of protection of the utility model as multiple types.
Claims (7)
1. a kind of multiphase flow test device based on flowmeter and water-containing machine, it is characterised in that：Including measuring pipeline (10), the survey
Buret road (10) is equipped with vertical measurement pipe (11), and the Upstream section of the vertical measurement pipe (11) is equipped with mass flowmenter (20), under
Trip section is equipped with aqueous tester (30), and the mass flowmenter (20) is located at below the aqueous tester (30).
2. the multiphase flow test device according to claim 1 based on flowmeter and water-containing machine, it is characterised in that：The matter
It includes flowmeter tube (21) to measure flowmeter (20), and the flowmeter tube (21) is vertically arranged, the upstream port of the flowmeter tube (21)
It is connected with the vertical measurement pipe (11), the downstream port of the flowmeter tube (21) is connected with the aqueous tester (30), should
Mass flow measurement module (22) is installed on flowmeter tube (21).
3. the multiphase flow test device according to claim 2 based on flowmeter and water-containing machine, it is characterised in that：It is described to contain
Water tester (30) includes water-containing machine pipe (31), and the water-containing machine pipe (31) is vertically arranged, the upstream port of the water-containing machine pipe (31)
It is connected with the downstream port of the flowmeter tube (21), the downstream port of the water-containing machine pipe (31) and the vertical measurement pipe (11)
It connects, temperature-measuring module (32), pressure measuring module (33) and aqueous measurement module is installed on the water-containing machine pipe (31)
(34)。
4. the multiphase flow test device according to claim 3 based on flowmeter and water-containing machine, it is characterised in that：The stream
Between the upstream port of gauge pipe (21) and the vertical measurement pipe (11), the upstream port of the water-containing machine pipe (31) with it is described
Between the downstream port of flowmeter tube (21) and the downstream port of the water-containing machine pipe (31) and the vertical measurement pipe (11)
Between, it is docked respectively by flange.
5. the multiphase flow test device according to claim 3 based on flowmeter and water-containing machine, it is characterised in that：It is described perpendicular
It is overlapped to the tube core line of measurement pipe (11), flowmeter tube (21) and water-containing machine pipe (31).
6. the multiphase flow test device based on flowmeter and water-containing machine according to claim 3,4 or 5, it is characterised in that：
The water-containing machine pipe (31) includes throttle pipe (311), and the both ends of the throttle pipe (311) are connected separately with interlayer casing, the interlayer
Casing includes the flow tube (312) of internal layer and the pillar (313) of outer layer, inside and outside therebetween to be arranged, and is formed between
The device of annular installs interlayer, and device installation interlayer is docked and is engaged, the throttling with the tube wall of the throttle pipe (311) end
The inner wall of pipe (311) is bonded with the outer wall of the flow tube (312), outer wall and the pillar (313) of the throttle pipe (311)
Inner wall is bonded.
7. the multiphase flow test device according to claim 6 based on flowmeter and water-containing machine, it is characterised in that：The folder
The outer end of layer casing is equipped with transfer tube (314), and the tube wall of transfer tube (314) inner end stretches into the device installation interlayer and embedding
It closes, the inner wall of the transfer tube (314) is bonded with the outer wall of the flow tube (312), outer wall and the shield of the transfer tube (314)
Manage the inner wall fitting of (313).
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414788A (en) * | 2020-11-04 | 2021-02-26 | 海默新宸水下技术(上海)有限公司 | Water content test shunting sampling device and full-range multiphase flow metering system |
-
2018
- 2018-04-28 CN CN201820653029.3U patent/CN208012684U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414788A (en) * | 2020-11-04 | 2021-02-26 | 海默新宸水下技术(上海)有限公司 | Water content test shunting sampling device and full-range multiphase flow metering system |
| CN112414788B (en) * | 2020-11-04 | 2022-11-22 | 海默新宸水下技术(上海)有限公司 | Water content test shunting sampling device and full-range multiphase flow metering system |
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