CN107083954A - A kind of three-phase metering mechanism - Google Patents
A kind of three-phase metering mechanism Download PDFInfo
- Publication number
- CN107083954A CN107083954A CN201710453736.8A CN201710453736A CN107083954A CN 107083954 A CN107083954 A CN 107083954A CN 201710453736 A CN201710453736 A CN 201710453736A CN 107083954 A CN107083954 A CN 107083954A
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- China
- Prior art keywords
- liquid
- gas
- liquid level
- knockout drum
- metering mechanism
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- 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
Abstract
The invention discloses a kind of three-phase metering mechanism, including knockout drum, the upper end of the knockout drum is provided with gas-liquid mixed entrance and gas vent, lower end are provided with liquid outlet, pump is provided with the pipeline of the liquid outlet connection, impingement plate is provided with the knockout drum, the impingement plate is provided with through hole；During work, gas-liquid mixture collides with the impingement plate and the separation of gas and liquid is realized under conditions of reduction pressure.Gas-liquid separation is realized by way of colliding and reduction pressure is combined, makes the more thorough of gas-liquid separation；And this separate mode can realize the continuous separation of gas and liquid, go for wider range of flow, meet that flow in multi-purpose station is big and requirement of the uninterrupted continuous metering of needs.
Description
Technical field
The present invention relates to technical field of oil field equipment, more particularly to a kind of three-phase metering mechanism.
Background technology
Multi-purpose station is defeated and processing the maincenter of crude oil collection.Multi-purpose station is provided with oil transportation, dehydration, sewage disposal, water filling, change
Test, power transformation, the process units such as boiler, main function is, by the processing to crude oil, to reach three de- (crude oil dehydration, desalination, take off
Sulphur；Gas dehydration, de-oiling；Deoiling of wastewater), three reclaim (waste oil recovery, sewage, lighter hydrocarbons), to go out four kinds of qualified products (natural
Gas, purification oil, purification sewage, lighter hydrocarbons) and carry out commercial crude it is outer defeated.Multi-purpose station is high temperature, and high pressure is inflammable, explosive
Place, is oil field one-level key place.
Oil, gas and water three phase metering in multi-purpose station are an important process in field production management, accurately metering pair
Oil well, which grasps oil reservoir situation, formulation production decision, has important directive significance.In metering process, typically by gas-liquid mixture
In gas and liquid two-phase laminated flow, pass through the flow of ultrasonic flowmeter meter gaseous；The liquid isolated passes through mass flow
The flow and oil-water ratio therein of liquid are measured, so as to obtain oil, the content ratio of gas and water three-phase.
At present, the two-phase laminated flow method that each oil field is used utilizes the effect of centrifugal force mainly by cyclone separation device
Separate gas and liquid, but this method is in actual use because every mouthful of well, or even same well different time goes out liquid
It is all different with outlet situation, in addition fluctuate it is very big, therefore, it tends not to produce a desired effect；Meanwhile, the gas in multi-purpose station
The flow of liquid mixture is especially big, generally requires uninterrupted continuous metering, and existing equipment can not be met.
The content of the invention
It is an object of the invention to propose a kind of three-phase metering mechanism of gas-liquid separation more thorough and accurate measurement.
For up to this purpose, the present invention uses following technical scheme：
A kind of three-phase metering mechanism, including knockout drum, the upper end of the knockout drum are provided with gas-liquid mixed and entered
Mouth and gas vent, lower end are provided with liquid outlet, the pipeline of the liquid outlet connection and are provided with pump, the gas-liquid separation
Impingement plate is provided with tank, the impingement plate is provided with through hole；During work, gas-liquid mixture is collided with the impingement plate and low
The separation of gas and liquid is realized under pressure ring border.
Wherein, in addition to controller, the gas vent is connected with the first pipeline, and first pipeline is provided with hypersonic flow
Gauge；The liquid outlet is connected with second pipe, and the second pipe is disposed with mass flowmenter and the pump, described
First pipeline is connected with the end of the second pipe, the controller respectively with the ultrasonic flowmeter, the mass flow
Meter and pump electrical connection.
Wherein, first pipeline is provided with cooling gas check valve between end and the ultrasonic flowmeter.
Wherein, the second pipe is provided with liquid non-return valve between end and the pump.
Wherein, first pipeline is additionally provided with pressure gauge between the gas vent and the ultrasonic flowmeter.
Wherein, first pipeline is additionally provided with safety valve between the gas vent and the pressure gauge.
Wherein, the impingement plate is obliquely installed in the knockout drum, the angle of the impingement plate and horizontal direction
For 25 ° -45 °.
Wherein, liquid level detection device is provided with the knockout drum, the liquid level detection device is examined including low liquid level
Component and high level detection components are surveyed, the low liquid level detection components and the high level detection components are electric with the controller
Connection；When the liquid level that the high level detection components are detected in the knockout drum is higher than default highest liquid level, institute
State controller and control the pump work；When the liquid level that the low liquid level detection components are detected in the knockout drum is less than in advance
If minimum liquid level when, the controller controls the pump to be stopped.
Wherein, the liquid level detection device also includes superelevation level alarm detection components, the superelevation leve detecting assembly
Electrically connect, be higher than when the superelevation level alarm detection components detect the liquid level in the knockout drum with the controller
During default superelevation liquid level, the controller controls the pump work.
Beneficial effect：The invention provides a kind of three-phase metering mechanism, including knockout drum, the knockout drum
Upper end is provided with gas-liquid mixed entrance and gas vent, lower end are provided with liquid outlet, the pipeline of the liquid outlet connection
It is provided with pump, the knockout drum and is provided with impingement plate, the impingement plate is provided with through hole；During work, gas-liquid mixture
The separation of gas and liquid is collided and realized under conditions of reduction pressure with the impingement plate.By colliding and reducing pressure knot
The mode of conjunction realizes gas-liquid separation, makes the more thorough of gas-liquid separation；And this separate mode can realize the company of gas and liquid
Continuous separation, goes for wider range of flow, meets flow in multi-purpose station big and the uninterrupted continuous metering of needs want
Ask.
Brief description of the drawings
Fig. 1 is the schematic diagram for the three-phase metering mechanism that the embodiment of the present invention 1 is provided；
Fig. 2 is the front view for the three-phase metering mechanism that the embodiment of the present invention 1 is provided；
Fig. 3 is the top view for the three-phase metering mechanism (controller is not shown) that the embodiment of the present invention 1 is provided；
Fig. 4 is the left view for the three-phase metering mechanism (controller is not shown) that the embodiment of the present invention 1 is provided；
Fig. 5 is the right view for the three-phase metering mechanism (controller is not shown) that the embodiment of the present invention 1 is provided.
Wherein：
1st, knockout drum；11st, impingement plate；12nd, low liquid level detection components；13rd, high level detection components；14th, superelevation liquid
Position detection components；
2nd, the first pipeline；21st, ultrasonic flowmeter；22nd, cooling gas check valve；23rd, safety valve；24th, pressure gauge；
3rd, second pipe；31st, pump；32nd, mass flowmenter；33rd, liquid non-return valve；
4th, controller.
Embodiment
For make present invention solves the technical problem that, the technical scheme that uses and the technique effect that reaches it is clearer, below
Technical scheme is further illustrated with reference to accompanying drawing and by embodiment.
Embodiment 1
As Figure 1-Figure 5, a kind of three-phase metering mechanism, including knockout drum 1, gas-liquid separation are present embodiments provided
The upper end of tank 1 is provided with gas-liquid mixed entrance and gas vent, lower end are provided with liquid outlet, the pipeline of liquid outlet connection
It is provided with pump 31, knockout drum 1 and is provided with impingement plate 11, impingement plate 11 is provided with through hole；During work, gas-liquid mixture with
Impingement plate 11 collides and the separation of gas and liquid is realized under conditions of reduction pressure.
Knockout drum 1 in the present embodiment realizes gas-liquid separation by way of colliding and reduction pressure is combined, and makes gas
It is more thorough that liquid is separated；And this separate mode can realize the continuous separation of gas and liquid, go for widely
Range of flow, meets that flow in multi-purpose station is big and requirement of the uninterrupted continuous metering of needs.
Specifically, after start-up operation, reduce the pressure in knockout drum 1 by pump 31, when gas-liquid mixture by
When the gas-liquid mixed entrance of knockout drum 1 is entered in knockout drum 1, gas-liquid mixture, which is hit in knockout drum 1, to be set
Impingement plate 11, and reduction pressure under conditions of complete gas-liquid separation, the gas after separation passes through the upper end of knockout drum 1
Gas vent is excluded, and the liquid after separation flows into the bottom of knockout drum 1 by the through hole on impingement plate 11.For preferably it is complete
Gas-liquid separation under into low-pressure state, impingement plate 11 can tilt certain angle, and the angle of impingement plate 11 and horizontal direction can be with
For 25 ° -45 °, specific angle can need adjustment according to real work；Multiple through holes can be provided with impingement plate 11, so as to
Flow into the bottom of knockout drum 1 in the liquid after separation, but through hole account for the area of impingement plate 11 can not be excessive, the area of through hole
Cross conference and reduce the contact area of gas-liquid mixture and impingement plate, so as to influence the effect that collision is separated.
The three-phase metering mechanism that the present embodiment is provided also includes controller 4, and gas vent is connected with the first pipeline 2, first
Pipeline 2 is disposed with safety valve 23, pressure gauge 24, ultrasonic flowmeter 21 and cooling gas check valve 22；Liquid outlet is connected with
Two pipelines 3, second pipe 3 is disposed with mass flowmenter 32, pump 31 and liquid non-return valve 33, the first pipeline 2 and the second pipe
The end connection in road 3, controller 4 is electrically connected with ultrasonic flowmeter 21, mass flowmenter 32 and pump 31 respectively.
After gas-liquid separation, gas enters in the first pipeline 2, and by the flow heel row of the meter gaseous of ultrasonic flowmeter 21
Remove, the gas flow that ultrasonic flowmeter 21 is computed out feeds back to controller 4；Set pressure gauge 24 can be with the first pipeline 2
Facilitate staff to observe the pressure of the first tracheal strips gas, corresponding measure can be taken when pressure is excessive, it is to avoid thing occur
Therefore；Safety valve 23 can not meet low as a kind of safeguard measure of three-phase metering mechanism when pressure is excessive in three-phase metering mechanism
When pressing the condition of separation, pressure can be discharged by safety valve 23, on the other hand one side protection device safe operation ensures
Separation under conditions of pressure is reduced, makes gas-liquid separation more thorough；Set cooling gas check valve 22 that gas can be prevented in the first pipeline 2
Interior adverse current, influences the normal work of three-phase metering mechanism.
After gas-liquid separation, liquid enters the bottom of knockout drum 1, and when the reserves of liquid reach a timing, controller 4 is opened
Dynamic pump 31, makes the liquid in knockout drum 1 enter in second pipe 3, and pass through the metered flow of mass flowmenter 32 and oil
Water ratio, mass flowmenter 32 so as to subsequent analysis oil well oil reservoir situation and formulates the parameter feedback calculated to controller 4
Production decision, after liquid is converged by liquid non-return valve 33 with the gas in the first pipeline 2 afterwards together with discharge, liquid non-return valve
33 can prevent liquid countercurrent.
Liquid level detection device is additionally provided with the knockout drum 1 that the present embodiment is provided, liquid level detection device includes low liquid
Position detection components 12 and high level detection components 13, low liquid level detection components 12 and high level detection components 13 with controller 4
Electrical connection；When the liquid level that high level detection components 13 detect the liquid in knockout drum 1 is higher than highest liquid set in advance
During position, show that liquid has certain reserves, continuous metering requirement can be met, the controlling pump 31 of controller 4 is started working, and makes gas
Liquid in liquid knockout drum 1 enters in second pipe 3；When low liquid level detection components 12 detect the liquid in knockout drum 1
Liquid level be less than minimum liquid level set in advance when, the controlling pump 31 of controller 4 is stopped.
To avoid high level detection components 13 abnormal, it is impossible to detect whether liquid level exceedes default high level, liquid level
Detection means can also include superelevation leve detecting assembly 14, and superelevation leve detecting assembly 14 is also electrically connected with controller 4, when super
When the liquid level that high level detection components 14 detect the liquid in knockout drum 1 is higher than default superelevation liquid level, show high liquid
Position detection components 13 are abnormal, do not feed back liquid level signal to controller 4 in time, and now the controlling pump 31 of controller 4 works, and prevents liquid level
Continue to raise, it is to avoid occur accident.
Low liquid level detection components 12, high level detection components 13 and superelevation liquid in liquid level detection device in the present embodiment
Position detection components 14 can be floating ball lever meter, simple in construction, reliable.Superelevation leve detecting assembly 14 can also include buzzing
Device and warning lamp, when the liquid level in knockout drum 1 reaches superelevation liquid level, buzzer and warning lamp work are carried in time
The staff that wakes up is handled, and improves the security of three-phase metering mechanism.
The impurity that the bottom of knockout drum 1 is additionally provided with sewage draining exit, knockout drum 1 can be arranged by sewage draining exit
Remove, set sewage draining exit conveniently to clean knockout drum 1.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, will change in specific embodiments and applications, and this specification content should not be construed as to the present invention
Limitation.
Claims (9)
1. a kind of three-phase metering mechanism, it is characterised in that including knockout drum (1), the upper end of the knockout drum (1) is set
It is equipped with gas-liquid mixed entrance and gas vent, lower end is provided with liquid outlet, the pipeline of the liquid outlet connection and be provided with
Impingement plate (11) is provided with pump (31), the knockout drum (1), the impingement plate (11) is provided with through hole；During work, gas
Liquid mixture collides with the impingement plate (11) and the separation of gas and liquid is realized under conditions of reduction pressure.
2. three-phase metering mechanism as claimed in claim 1, it is characterised in that also including controller (4), the gas vent connects
The first pipeline (2) is connected to, first pipeline (2) is provided with ultrasonic flowmeter (21)；The liquid outlet is connected with the second pipe
Road (3), the second pipe (3) is disposed with mass flowmenter (32) and the pump (31), first pipeline (2) and institute
State second pipe (3) end connection, the controller (4) respectively with the ultrasonic flowmeter (21), the mass flowmenter
(32) electrically connected with the pump (31).
3. three-phase metering mechanism as claimed in claim 2, it is characterised in that first pipeline (2) surpasses in end with described
Cooling gas check valve (22) is provided between sonic flowmeter (21).
4. three-phase metering mechanism as claimed in claim 2, it is characterised in that the second pipe (3) is in end and the pump
(31) liquid non-return valve (33) is provided between.
5. three-phase metering mechanism as claimed in claim 2, it is characterised in that first pipeline (2) is in the gas vent
Pressure gauge (24) is additionally provided between the ultrasonic flowmeter (21).
6. three-phase metering mechanism as claimed in claim 5, it is characterised in that first pipeline (2) is in the gas vent
Safety valve (23) is additionally provided between the pressure gauge (24).
7. three-phase metering mechanism as claimed in claim 1, it is characterised in that the impingement plate (11) is obliquely installed in the gas
In liquid knockout drum (1), the impingement plate (11) and the angle of horizontal direction are 25 ° -45 °.
8. the three-phase metering mechanism as described in claim any one of 2-7, it is characterised in that set in the knockout drum (1)
Liquid level detection device is equipped with, the liquid level detection device includes low liquid level detection components (12) and high level detection components (13),
The low liquid level detection components (12) and the high level detection components (13) are electrically connected with the controller (4)；When described
When the liquid level that high level detection components (13) detect in the knockout drum (1) is higher than default highest liquid level, the control
Instrument (4) processed controls pump (31) work；When the low liquid level detection components (12) are detected in the knockout drum (1)
When liquid level is less than default minimum liquid level, the controller (4) controls the pump (31) to be stopped.
9. three-phase metering mechanism as claimed in claim 8, it is characterised in that the liquid level detection device also includes superelevation liquid level
Alarm detection components, the superelevation leve detecting assembly (14) electrically connects with the controller (4), when the superelevation level alarm
When the liquid level that detection components detect in the knockout drum (1) is higher than default superelevation liquid level, controller (4) control
Pump (31) work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453736.8A CN107083954A (en) | 2017-06-15 | 2017-06-15 | A kind of three-phase metering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710453736.8A CN107083954A (en) | 2017-06-15 | 2017-06-15 | A kind of three-phase metering mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN107083954A true CN107083954A (en) | 2017-08-22 |
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|---|---|---|---|
| CN201710453736.8A Pending CN107083954A (en) | 2017-06-15 | 2017-06-15 | A kind of three-phase metering mechanism |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5211842A (en) * | 1992-01-07 | 1993-05-18 | Conoco Inc. | Three-phase well test apparatus using pumped recirculation to maintain homogenous flow |
| CN201329224Y (en) * | 2008-12-31 | 2009-10-21 | 天津凯德实业有限公司 | Oil-water separating buffer tank |
| CN103835698A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well and three-phase metering device |
| CN103835697A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well and three-phase metering device |
| CN206114024U (en) * | 2016-08-31 | 2017-04-19 | 上海一诺仪表有限公司 | Novel three -phase measurement device |
| CN207033433U (en) * | 2017-06-15 | 2018-02-23 | 上海一诺仪表有限公司 | A kind of three-phase metering mechanism |
-
2017
- 2017-06-15 CN CN201710453736.8A patent/CN107083954A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5211842A (en) * | 1992-01-07 | 1993-05-18 | Conoco Inc. | Three-phase well test apparatus using pumped recirculation to maintain homogenous flow |
| CN201329224Y (en) * | 2008-12-31 | 2009-10-21 | 天津凯德实业有限公司 | Oil-water separating buffer tank |
| CN103835698A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well and three-phase metering device |
| CN103835697A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well and three-phase metering device |
| CN206114024U (en) * | 2016-08-31 | 2017-04-19 | 上海一诺仪表有限公司 | Novel three -phase measurement device |
| CN207033433U (en) * | 2017-06-15 | 2018-02-23 | 上海一诺仪表有限公司 | A kind of three-phase metering mechanism |
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