CN103806894B - A kind of device and method for measuring output liquid of coal bed methane well - Google Patents
A kind of device and method for measuring output liquid of coal bed methane well Download PDFInfo
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- CN103806894B CN103806894B CN201410028737.4A CN201410028737A CN103806894B CN 103806894 B CN103806894 B CN 103806894B CN 201410028737 A CN201410028737 A CN 201410028737A CN 103806894 B CN103806894 B CN 103806894B
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Abstract
The invention discloses a kind of apparatus and method for measuring output liquid of coal bed methane well, described device includes surge tank, fluid flowmeter and connecting tube.Surge tank is provided with production fluid entrance and exit, and top sets gas vent, and bottom sets solid-phase outlet；Fluid flowmeter and connecting tube collectively form U-tube road, and flowmeter is located at the bottom on U-tube road；The two ends of blast pipe are connected with surge tank gas vent, U-tube road liquid outlet respectively.Methods described is after the buffered tank of output liquid of coal bed methane well is separated, to flow through flowmeter and measure.The measuring method enables liquid to be separated with solid phase coal dust, gas before by fluid flowmeter, and only liquid, so as to improve the accuracy of measuring, when Liquid output is little, the accuracy of measuring is improve using U-tube physical principle by fluid flowmeter.The present invention provide the measuring method degree of accuracy it is high, can be used for the metering of output liquid of coal bed methane well, in Oil/gas Well output oil or water metering, or other similar operating modes metering.
Description
The application is the Application No. 201110077529.X, entitled that applicant submitted on March 30th, 2011
A kind of divisional application of the patent application of " device and method for measuring output liquid of coal bed methane well ".
Technical field
The invention belongs to liquid measure field, in particular to a kind of device and method for measuring output liquid of coal bed methane well.
Background technology
Although people know that the main component of output liquid of coal bed methane well body is water, also contain a small amount of coal dust and gas, coal
Powder and gas have large effect to the accuracy of measuring of liquid, but coal bed gas well scene still widely uses general liquid flow
Gauge, the subject matter that this metering method is present has：
1st, coal dust can be attached on the impeller of flowmeter, because the normal rotation for influenceing impeller causes metering inaccurate.
2nd, gas is in minute bubbles state and during liquid is together discharged to ground by compression in stratum, bubble from
The pressure that shaft bottom is earthward subject in flow process is constantly reduced, and bubble volume can be continued to increase, after ground water pipeline is reached,
Pressure is minimized, and the volume of gas also reaches maximum, and gas and liquid at this moment can show slug flow or layering in pipe
The nowed formings such as stream.Which kind of nowed forming all can greatly influence the rotating speed of flowmeter impeller due to the presence of gas, from
And cause the degree of accuracy of liquid meter to go wrong.
3rd, when the amount of production fluid is less, it is possible that production fluid can not be full of the ground survey pipe equipped with flowmeter
Section, although at this moment occur there is liquid to flow through wheel rotation is slack-off, so as to the degree of accuracy for causing liquid meter goes wrong.Such as
Fruit liquid level is less than the impeller of flowmeter, and impeller would not be rotated, and at this moment cannot carry out liquid meter.
The appearance of above-mentioned situation can not only influence the accuracy of measuring of liquid, it is often more important that above-mentioned three kinds of situations are easily led
Cause people to judge the production status of coal bed gas well by accident, especially when the gas flow in liquid is more or during relatively low Liquid output its measurement it is accurate
Exactness error produces the great warp that cannot be retrieved more greatly so as to cause people seriously to judge the production status of coal bed gas well by accident, easily
Ji loss.
The content of the invention
It is an object of the invention to provide a kind of apparatus and method of the product fluid of accurate metering coal bed gas well, the measurement side
Method enables liquid to be separated with solid phase coal dust, gas before by fluid flowmeter, and the liquid after separation passes through fluid flowmeter,
So as to improve the accuracy of measuring, when Liquid output is little, the accuracy of measuring is improve using the physical principle of U-tube structure, this
The device that invention is provided is installed, operated, operation and maintenance is very easy.
The purpose of the present invention is achieved through the following technical solutions：
A kind of device for measuring output liquid of coal bed methane well, it is theed improvement is that：A kind of measurement output liquid of coal bed methane well
Device, described device includes surge tank, fluid flowmeter, the first connecting tube and the second connecting tube；It is theed improvement is that：It is described
Surge tank is provided with entrance and exit, and the surge tank top sets out mouth, and its bottom sets another outlet；The one of fluid flowmeter
The first connecting tube for be connected with surge tank liquid outlet of end is connected, and the other end is connected with second connecting tube one end is connected, and described the
The other end of two connecting tubes is measurement liquid outlet；First connecting tube, fluid flowmeter and second connecting tube are common
U-tube road is constituted, the fluid flowmeter is located at the bottom on the U-tube road；One end of blast pipe be located at the surge tank
The valve export end of top exit is connected, and its other end is connected with the measurement liquid outlet.
Another optimal technical scheme of the invention is：The top of the surge tank is cylinder, and bottom is bullet；It is described
The height of bullet is a quarter of surge tank height of column to 1/7th, and the bottom of the bullet is solid-phase outlet.
Another optimal technical scheme of the invention is：Be provided with inner bag in the surge tank, the inner bag be shaped as without
The cylinder of upper dome, including side and the bottom surface with sieve aperture, the upper edge of the inner bag is welded in surge tank inlet circumference
At line, weld seam is less than the horizontal plane on surge tank entrance base, and the surge tank and the inner bag form annular space space；The inner bag
Side on be embedded with spiral helicine pipeline, one end of the pipeline is connected with surge tank entrance, and the other end is connected on inner bag bottom surface
And connected with bullet cavity, it is disposed with sieve aperture on the pipeline；The size and density of sieve aperture and the spiral on the inner bag
The size of sieve aperture is identical with density on the pipeline of shape, and the sieve aperture on the pipeline is uniformly distributed in the shape of a spiral；Surge tank entrance institute
Horizontal plane where horizontal plane is less than surge tank liquid outlet, height of the surge tank liquid outlet at the top of surge tank is less than
/ 3rd of surge tank height of column.
Another optimal technical scheme of the invention is：The bottom of the first connecting tube and the second connecting tube is horizontal straight tube, institute
Fluid flowmeter is stated just to be arranged between two horizontal straight tubes of connecting tube；The diameter of the horizontal straight tube is straight with fluid flowmeter
Footpath is identical, ten times of length not less than fluid flowmeter diameter of the horizontal straight tube of the first connecting tube, the level of the second connecting tube
Not less than five times of fluid flowmeter diameter, the vertical height on U-tube road connects the length of straight tube not less than described first and second
The twice of tube diameter.
Another optimal technical scheme of the invention is：Output liquid of coal bed methane well enters surge tank by surge tank entrance, produces
Go out liquid carries out gas, liquid, solid three-phase and is automatically separated after spiral helicine pipeline is entered；When production fluid overflows from gas vent, close
The valve of the gas outlet is closed, the gas after separation together enters in U-tube road with liquid by surge tank liquid outlet,
And measured by fluid flowmeter；When gas vent overflows without production fluid, the valve of the gas outlet is opened, after separation
Gas surge tank is discharged by gas vent and blast pipe, the liquid after separation enters U-tube by surge tank liquid outlet
Lu Zhong, and measured by fluid flowmeter；Solid after separation can discharge surge tank by solid-phase outlet.
Device of the present invention includes surge tank, fluid flowmeter, the first connecting tube and the second connecting tube；The surge tank
Side wall on be provided with surge tank entrance and surge tank liquid outlet, gas vent is provided with the top of surge tank, surge tank
Bottom is provided with solid outlet；The a port of flowmeter is connected by the first connecting tube with surge tank liquid outlet, flowmeter
Another port connect one end of the second connecting tube, the other end of the second connecting tube is measurement liquid outlet；First connecting tube, liquid
Flowmeter body and the second connecting tube collectively form U-tube road, and fluid flowmeter is located at the bottom on U-tube road；One end of blast pipe
It is connected with the valvular surge tank gas vent of band, the other end of blast pipe is connected with measurement liquid outlet.The buffering
The top of tank is cylinder, and bottom is bullet.The height of the bullet is a quarter of surge tank height of column to seven
/ mono-, the bottom of bullet is the solid-phase outlets such as coal dust, and valve is carried at solid-phase outlet.Inner bag is provided with surge tank, it is interior
The cylinder for being shaped as not taking dome of courage, including side and the bottom surface with sieve aperture, the upper edge of inner bag is welded in buffering
At tank inlet circumference line, less than the horizontal plane on surge tank entrance base, cylindrical portion and the inner bag of surge tank form ring to weld seam
Gap space；Spiral helicine pipeline is embedded with the side of inner bag, spiral helicine pipeline one end is connected with surge tank entrance, the other end
It is connected on inner bag bottom surface and is connected with bullet cavity, sieve aperture is disposed with spiral helicine pipeline, the size of sieve aperture can foundation
Granular size in liquid determines that the density of sieve aperture depends on the concentration and the amount of liquid of particle in liquid.Sieve aperture on inner bag
Size and density are identical with the size and density of sieve aperture on spiral helicine pipeline, and the sieve aperture on pipeline is uniformly distributed in the shape of a spiral.
Horizontal plane where surge tank entrance is less than the horizontal plane where surge tank liquid outlet, surge tank liquid outlet distance buffering tank deck
/ 3rd of the height in portion less than surge tank height of column.The bottom of the first connecting tube and the second connecting tube is horizontal straight tube,
The fluid flowmeter is just arranged between two horizontal straight tubes of connecting tube.The diameter and fluid flowmeter of the horizontal straight tube
Diameter is identical, ten times of length not less than fluid flowmeter diameter of the horizontal straight tube of the first connecting tube, the water of the second connecting tube
Not less than five times of fluid flowmeter diameter, the vertical height on U-tube road is not less than described first and second to the length of straight pipe
Connect the twice of pipe diameter.
Another optimal technical scheme of the invention is：Output liquid of coal bed methane well enters surge tank by surge tank entrance, produces
Gas, liquid, solid three-phase is carried out after going out liquid in into spiral helicine pipeline to be automatically separated；When output liquid measure is too big and can go out from gas
When mouth overflows, the valve of the gas outlet is closed, the gas after separation together enters with liquid by surge tank liquid outlet
In entering U-tube road, and measured by fluid flowmeter；When output liquid measure is smaller and can not be overflowed from gas vent, open
The valve of the gas outlet, the gas after separation discharges surge tank, the liquid after separation by gas vent and blast pipe
Enter in U-tube road by surge tank liquid outlet, and measured by fluid flowmeter；Solid after separation can be by solid
Surge tank is discharged in mutually outlet.
Except unless otherwise indicated, the term " U-shaped " in the present invention means that along described U-tube road axial section be U-shaped.
Compared with existing metering device and method, the present invention has following excellent effect：
The solid phase powder such as the coal dust on the one hand made in production fluid are set due to surge tank in the technical scheme that the present invention is provided
Grain is greatly reduced, and has on the other hand been greatly reduced gas contained therein, by the material for influenceing the liquid meter degree of accuracy such as
Solid, gas are separated in surge tank, thus simply the liquid after separation are measured, so that liquid to be batched
Body has carried out early stage purified treatment, to purifying the metering of liquid and the former is substantially better than the latter and is to not purified liquid meter
It is self-evident.
Measurement pipeline section is set to remain hydraulically full state by the effect on U-tube road, accordingly even when measuring less stream
During amount, also ensure that with the accuracy of measuring higher.
Surge tank gas vent and measuring instrument rear end are coupled together that to pass the gas through water pipeline remote with exhaust line
From well head region, it is to avoid fuel gas is assembled in well head, improves the security of well head.
Further, since the metering of gasser product fluid is more accurate, it is the aerogenesis of correctly assessment gasser region
Potentiality provide foundation, and this is related to the material items such as the value assessment and investment decision of the block.The technical side that the present invention is provided
Case can not only effectively cope with any situation of above-mentioned three kinds of situations, can also be carried out when three kinds of situations occur simultaneously
Early stage is purified so as to effectively improve the degree of accuracy of metering.The method that the present invention is provided is installed, operated, operation and maintenance is very simple
Just, the method that the present invention is provided has the extensive market demand and good application prospect.
The technical scheme that the present invention is provided can be not only used for the metering of output liquid of coal bed methane well, it can also be used in Oil/gas Well
Output oil or water metering, or other similar operating modes metering.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is the device of the product fluid for measuring coal bed gas well
Reference：
1- surge tanks, the connecting tubes of 2- first, 3- fluid flowmeters, 4- blast pipes, 5- surge tank entrances, 6- surge tank liquid
Outlet, 7- gas vents, 8- solid-phase outlets, 9- measurement liquid outlets, 10- pipelines, 11- inner bags, 12- bullets, 13- second connects
Adapter.Specific embodiment
With reference to example, the present invention will be described in detail.
As shown in figure 1, the device of measurement output liquid of coal bed methane well of the invention includes surge tank 1, fluid flowmeter 3, the
One connecting tube 2 and the second connecting tube 13.The surge tank 1 is provided with surge tank entrance 5, surge tank liquid outlet 6, gas vent
7 and solid-phase outlet 8, the top of the surge tank 1 is cylinder, and bottom is bullet 12, and spiral shell is provided with inside the surge tank 1
Revolve the pipeline 10 of shape.The a port of flowmeter 3 is connected by the first connecting tube 2 with surge tank liquid outlet 6, and another port connects
The second connecting tube 13 is connect, the other end of the second connecting tube 13 is measurement liquid outlet 9.First connecting tube 2, the and of fluid flowmeter 3
Second connecting tube 13 collectively forms U-tube road as depicted, and fluid flowmeter 3 is placed exactly in the bottom on U-tube road.Gas goes out
Mouthfuls 7 tops for being located at surge tank 1, one end of blast pipe 4 is connected with gas vent 7, the other end and described measures liquid outlet 9
It is connected, valve is installed at gas vent 7.Surge tank entrance 5 and surge tank liquid outlet 6 are located on the side wall of surge tank 1.
The height of the bullet 12 is a quarter of surge tank height of column to 1/7th, the bottom of bullet 12
It is the solid-phase outlets such as coal dust 8, valve is carried at solid-phase outlet 8.It is provided with inner bag 11 in surge tank 1, inner bag 11 is shaped as not
The cylinder of dome, including side and the bottom surface with sieve aperture are taken, the upper edge of inner bag 11 is welded in the circumference of surge tank entrance 5
At line, weld seam so forms annular space by buffering the cylinder of tank body 1 less than the horizontal plane on surge tank entrance base with inner bag 11
Space.Pipeline 10 is embedded with the side of inner bag 11, in the shape of a spiral, the one end of spiral helicine pipeline 10 is connected with surge tank entrance 5,
The other end is connected on the bottom surface of inner bag 11 and is connected with the cavity of bullet 12, and sieve aperture, inner bag 11 are disposed with spiral helicine pipeline 10
Sieve aperture size and density it is identical with the size and density of the sieve aperture on spiral helicine pipeline, sieve aperture is in spiral helicine pipeline 10
On be uniformly distributed in the shape of a spiral.The place horizontal plane of surge tank entrance 5 is less than the horizontal plane where surge tank liquid outlet 6, buffering
/ 3rd of height of the tank liquid outlet 6 at the top of surge tank less than surge tank height of column.
The bottom of the first connecting tube 2 and the second connecting tube 13 is horizontal straight tube, and the fluid flowmeter 3 is just arranged on two
Between the horizontal straight tube of connecting tube, the diameter of horizontal straight tube is identical with the diameter of fluid flowmeter 3, the horizontal straight tube of the first connecting tube
Length not less than ten times of the diameter of fluid flowmeter 3, the length of the horizontal straight tube of the second connecting tube is not less than fluid flowmeter 3
Five times of diameter, the twice of the vertical height not less than the described first and second connection pipe diameters on U-tube road.
After the buffered tank of output liquid of coal bed methane well is separated, the measurement liquid in surge tank measures liquid outlet by surge tank
Fluid flowmeter 3 is flowed through after 6 discharges to measure, by the measurement liquid outlet 9 that the liquid of fluid flowmeter passes through U-tube road
Outflow.
Method of the present invention is：Output liquid of coal bed methane well enters surge tank 1 by surge tank entrance 5, and production fluid exists
Gas, liquid, solid three-phase is carried out after into spiral helicine pipeline 10 to be automatically separated；When output liquid measure is too big and can be from gas vent 7
During spilling, the valve closed at the gas vent 7, the gas after separation together enters with liquid by surge tank liquid outlet 6
In entering U-tube road, and measured by fluid flowmeter 3；When output liquid measure is smaller and can not be overflowed from gas vent 7, beat
The valve at the gas vent 7 is opened, the gas after separation discharges surge tank 1 by gas vent 7 and blast pipe 4, after separation
Liquid enter in U-tube road by surge tank liquid outlet 6, and measured by fluid flowmeter 3；Solid energy after separation
Surge tank 1 is enough discharged by solid-phase outlet 8.
The situation that the present invention combines coal bed gas product liquid is described as follows to device broad outlines：
1：The surge tank of fluid flowmeter front end, the effect of the surge tank is to make gas, solid, liquid three phase separation；
2：Buffering pot bottom is bullet, and the bottom of bullet carries valve, it is therefore an objective to when solid precipitation to it is a certain amount of when
It is convenient to clean solid phase；
3：Surge tank top is that, with valvular gas vent, purpose makes the gas escape separated go out, valve
Effect is can to close the outlet when Liquid output is too big and is possible to and is overflowed from gas outlet.Although at this moment gas has to pass through
Fluid flowmeter, but when the amount of liquid is big when to be overflowed from gas vent, now close the valve of gas outlet, usual feelings
Condition is that the influence that gas is stayed in pipe to the liquid meter degree of accuracy is less than the non-metering liquid amount pair flowed away by gas vent
The influence of the accuracy of measuring, operates with while also allowing for scene and carrying out selectivity according to actual conditions；
4：Surge tank entrance is less than surge tank liquid outlet, it is therefore an objective to gas, liquid, solid three-phase is had in surge tank more abundant
Separation it is interval；
5：Fluid flowmeter is arranged on the bottom on U-tube road, it is therefore an objective to when output liquid measure is less, by U-tube road
Effect remains that the liquid of measurement pipeline section (namely horizontal straight tube) is filled with state, so can not only measure less stream
Amount, the degree of accuracy is also further increased；
6：Surge tank gas outlet is coupled together with the measurement liquid outlet of fluid flowmeter rear end with blast pipe, is to make gas
Body is by process pipelines away from well head region, it is to avoid fuel gas is assembled in well head.
The core element of process of the invention is to be automatically separated gas, liquid, solid three-phase, and liquid is carried out again after separation
Metering, the accuracy of measuring is improve when liquid measure is smaller using U-tube physical principle.Therefore, it is used for solving based on above-mentioned principle
The correlation combiner of the situ metrology degree of accuracy or improvement should be construed as being included in process of the invention.
The present invention can not only solve the output liquid of coal bed methane well body accuracy of measuring, it is also possible to be applied to the scene of Oil/gas Well
Measurement, can equally improve the accuracy of measuring, and applicable cases are similar, are no longer described one by one herein.
According to specific exemplary embodiment, invention has been described herein.Those skilled in the art is come
Say is carrying out appropriate replacement or modification will be apparent without departing from the scope of the invention.Exemplary embodiment is only
It is illustrative, rather than limiting the scope of the present invention, the scope of the present invention be defined by the appended.
Claims (4)
1. it is a kind of measure output liquid of coal bed methane well device, described device include surge tank (1), fluid flowmeter (3), first connect
Adapter (2) and the second connecting tube (13)；It is characterized in that：The surge tank (1) is provided with entrance (5) and surge tank liquid outlet
(6), surge tank (1) top sets gas vent (7), and its bottom sets solid-phase outlet (8)；One end of fluid flowmeter (3)
The first connecting tube (2) connection being connected with surge tank liquid outlet (6), the other end is connected with the one end of the second connecting tube (13),
The other end of second connecting tube (13) is measurement liquid outlet (9)；First connecting tube (2), fluid flowmeter (3) and
Second connecting tube (13) collectively forms U-tube road, bottom of the fluid flowmeter (3) positioned at the U-tube road；Exhaust
The one end for managing (4) is connected with the valve export end for being located at the gas vent (7), its other end and the measurement liquid outlet
(9) it is connected；
Wherein, inner bag (11) is provided with surge tank (1), the inner bag (11) is shaped as not taking the cylinder of dome, including
Side and the bottom surface with sieve aperture, the upper edge of the inner bag (11) are welded at surge tank entrance (5) circumference, and weld seam is less than
The horizontal plane on surge tank entrance (5) base, the surge tank (1) forms annular space space with the inner bag (11)；The inner bag
(11) spiral helicine pipeline (10) is embedded with side, one end of the pipeline (10) is connected with surge tank entrance (5), the other end
It is connected on inner bag (11) bottom surface and is connected with bullet (12) cavity, sieve aperture is disposed with the pipeline (10).
2. a kind of device for measuring output liquid of coal bed methane well as claimed in claim 1, it is characterised in that：The surge tank (1)
Top be cylinder, bottom be bullet (12)；The height of the bullet (12) for surge tank height of column four/
1/1st to seven, the bottom of the bullet (12) is solid-phase outlet (8).
3. a kind of device for measuring output liquid of coal bed methane well as claimed in claim 1, it is characterised in that：First connecting tube (2)
Bottom with the second connecting tube (13) is horizontal straight tube, and the level that the fluid flowmeter (3) is just arranged on two connecting tubes is straight
Between pipe；The diameter of the horizontal straight tube is identical with fluid flowmeter (3) diameter, the length of the horizontal straight tube of the first connecting tube (2)
Not less than ten times of fluid flowmeter (3) diameter, the length of the horizontal straight tube of the second connecting tube is not less than fluid flowmeter (3) to degree
Five times of diameter, the twice of the vertical height not less than the described first and second connection pipe diameters on U-tube road.
4. the method that a kind of described device of any one of utilization claim 1-3 measures output liquid of coal bed methane well, its feature exists
In：
Output liquid of coal bed methane well is set to enter surge tank (1) by surge tank entrance (5), production fluid is entering spiral helicine pipeline
(10) gas, liquid, solid three-phase is carried out after to be automatically separated；
When production fluid overflows from gas vent (7), the valve at gas vent (7) place, gas and liquid after separation are closed
Body together enters in U-tube road by surge tank liquid outlet (6), and is measured by fluid flowmeter (3)；Gas vent
(7) when being overflowed without production fluid, the valve at gas vent (7) place is opened, the gas after separation is by gas vent (7) and row
Tracheae (4) discharges surge tank (1), and the liquid after separation enters in U-tube road by surge tank liquid outlet (6), and by liquid
Flowmeter (3) is measured；Solid after separation can discharge surge tank (1) by solid-phase outlet (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410028737.4A CN103806894B (en) | 2011-03-30 | 2011-03-30 | A kind of device and method for measuring output liquid of coal bed methane well |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410028737.4A CN103806894B (en) | 2011-03-30 | 2011-03-30 | A kind of device and method for measuring output liquid of coal bed methane well |
| CN201110077529.XA CN102168549B (en) | 2011-03-30 | 2011-03-30 | Device and method for measuring output liquid of coal bed methane well |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110077529.XA Division CN102168549B (en) | 2011-03-30 | 2011-03-30 | Device and method for measuring output liquid of coal bed methane well |
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| Publication Number | Publication Date |
|---|---|
| CN103806894A CN103806894A (en) | 2014-05-21 |
| CN103806894B true CN103806894B (en) | 2017-06-16 |
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| CN201410028737.4A Active CN103806894B (en) | 2011-03-30 | 2011-03-30 | A kind of device and method for measuring output liquid of coal bed methane well |
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| CN (1) | CN103806894B (en) |
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| CN105201486B (en) * | 2014-06-05 | 2018-04-10 | 中国石油化工股份有限公司 | A kind of coal bed gas well coal dust carries determination methods outside |
| CN104131805B (en) * | 2014-07-04 | 2017-02-15 | 西安长庆科技工程有限责任公司 | Method and device for airtight recycling of condensate oil of oil outlet pipeline of oil well |
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| US5211842A (en) * | 1992-01-07 | 1993-05-18 | Conoco Inc. | Three-phase well test apparatus using pumped recirculation to maintain homogenous flow |
| CN1056904C (en) * | 1996-10-31 | 2000-09-27 | 胜利石油管理局勘察设计研究院 | Measuring device for voltage control instrument used for two phase separation in oil well |
| CN2537960Y (en) * | 2002-04-28 | 2003-02-26 | 西安朗森科技有限责任公司 | High precision oil gas and water three phase flow automatic meter |
| RU2244122C1 (en) * | 2003-09-22 | 2005-01-10 | Закрытое акционерное общество "ДАЙМЕТ" | Method of measuring liquid flow in gas-liquid mixtures |
| CN2846751Y (en) * | 2005-09-17 | 2006-12-13 | 彭小平 | Liquid and gas meter for oil well |
| CN101260802B (en) * | 2008-04-22 | 2011-12-14 | 天津大学 | Oil, gas and water three phase oil well continuous metering device and its measurement method |
| CN201241690Y (en) * | 2008-08-19 | 2009-05-20 | 寿焕根 | Oil, water and gas three-phase automatic separated metering device |
| CN201730604U (en) * | 2010-03-31 | 2011-02-02 | 胜利油田高原石油装备有限责任公司 | Spiral passive gas-liquid separator |
| CN102168549B (en) * | 2011-03-30 | 2014-01-08 | 潘军 | Device and method for measuring output liquid of coal bed methane well |
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