CN105758493A - Gas-liquid multi-phase metering device - Google Patents
Gas-liquid multi-phase metering device Download PDFInfo
- Publication number
- CN105758493A CN105758493A CN201610212047.3A CN201610212047A CN105758493A CN 105758493 A CN105758493 A CN 105758493A CN 201610212047 A CN201610212047 A CN 201610212047A CN 105758493 A CN105758493 A CN 105758493A
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- Prior art keywords
- gas
- component
- liquid
- chamber
- cubing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
A gas-liquid multi-phase metering device comprises a measuring probe and is characterized in that a small-volume component measuring cavity is arranged in a large-volume volume measuring cavity used to measure volume, the measuring probe is disposed in the component measuring cavity, and a body of the component measuring cavity is controlled to communicate with a body of the volume measuring cavity or to self-close through a moving mechanism; the gas-liquid multi-phase metering device can effectively measure a component ratio of a medium and can also meter both a liquid and a gas.
Description
Technical field
The invention belongs to a kind of metering device, particularly relate to a kind of gas-liquid multiphase measurement device.
Background technology
Measure liquid measure product more accurately at oil field shaft mouth currently on the market and have the device using weighing principle, but structure complexity cost is high, and total liquid measure can only be surveyed, therefore use very limited；The principle of tipping bucket counting can accurately measure liquid measure, but along with fouling in weighing hopper, bucket internal volume and upset equilibrium point change, cause huge error, owing to weighing hopper is movable and irregular component, auto-erasing is difficulty with, although therefore Skip meter is present in decades in oil field, also could not promote the use of in batches always.
The type oil-gas-water three-phase metering device of similar oil field individual well is constantly in constantly evolution in decades, measures for simple liquid volume measurement and gasometer amount, oil-water ratio without gas and oil aqueous mixtures at present, has comparatively ripe scheme and product.But the multiphase measurement realizing well head low cost is always up a technical barrier, the most conventional way is exactly that a set of gas-liquid separating metering device adds an online water-containing machine, can realize three phase metering in theory.But there is following defect:
1, conventional water-containing machine is very sensitive to the gassiness in liquid phase, and little gassiness can bring about very big measurement of water ratio error；
2, the oil gas aqueous mixtures physical property having buried tens thousand of years thousands of years in underground is extremely complex, want gas-liquid separate very well, profit initial gross separation, must adding long residence time, this volume directly resulting in separator increases, and bulky words produce and install maintenance cost and all can strengthen；
3, heating energy assists profit and the magazins' layout of gas-liquid separation and liquid phase, improves certainty of measurement, but the medium of large volume is added heat loss mass energy, and power is too big, and on-the-spot distribution is also unrealistic；
4, conventional online water-containing machine is owing to being real-time measurement, except the interference by gassiness, the emulsified state of oil water mixture, interior impure all measurement result causing unpredictable impact, precision cannot ensure, the present situation used at the scene at present also demonstrates this point completely；
As long as 5, can guarantee that the three-phase metering mechanism of certain precision on market, being all that volume is big, cost is high, limits its application at oil field shaft mouth.Well head digitized is the important foundation in digitized oil field, but due to oil well substantial amounts, determines the necessary purchase cost of three-phase metering mechanism low, and installation maintenance cost is low, is otherwise difficult to promote the use of.
In sum, to complete well yield metering at present, it is necessary to liquid, tolerance metering device and water-containing machine are supporting, and existing liquid, tolerance metering device have the defect that bulky cost is high, are very restricted during actual popularization.
Summary of the invention
The technical problem to be solved is: for above-mentioned prior art Problems existing, it is provided that a kind of gas-liquid multiphase measurement device, not only can effectively measure the component ratio of medium, moreover it is possible to simultaneously complete the metering of liquid measure and tolerance.
In order to solve above-mentioned technical problem, the present invention by the following technical solutions:
A kind of gas-liquid multiphase measurement device, including measuring probe, it is characterized in that: one little volume component for measuring component is set at a big volume cubing intracavity for measuring volume and measures chamber, component is measured intracavity and is arranged measurement probe, and component is measured chamber cavity and controlled to connect or self-isolation with cubing chamber cavity by movable device.
Described component is measured cavity and is provided with heater block.
Top, described cubing chamber is provided with gas-liquid entrance, gas outlet, and bottom is provided with liquid outlet, gas outlet and liquid outlet and is opened or closed by Valve controlling.
Described cubing intracavity is additionally provided with liquid level emasuring device, for judging the state of feed liquor and discharge opeing.
The two-layer that described component measurement cavity is nested by inside and outside wall forms, and inside and outside wall is equipped with perforate, and outer wall opposed inner walls rotates whether the perforate controlling two-layer aligns, and during alignment, component measurement chamber connects with cubing chamber, and when not lining up, component measures chamber closing.
Described component is measured cavity and is provided with the driving assembly driving inwall or outer wall to rotate.
Described cubing chamber is provided with the automatic removing device rotated along its inwall.
Described automatic removing device is connected with power drive assemblies, power drive assemblies drive automatic removing device to rotate.
Described power drive assemblies is connected with gear driven assembly, and gear driven assembly is used for driving measurement cavity inner wall or outer wall to rotate.
The present invention compared with prior art has the advantages that
1) present invention not only can effectively measure the component ratio of medium, moreover it is possible to simultaneously completes the metering of liquid measure and tolerance, this in the market existing separate unit instrument do not accomplish.
2) component in the cubing chamber and small size that combine big volume measures chamber, solving guarantee oil and gas and water can not too long of contradiction from effect and the time of staying, the medium of cubing intracavity need not stop the long time and first discharge, and component is measured the medium of intracavity and can be measured at the environment of relative quiescent and analyze.
3) component is measured chamber and is placed in cubing intracavity portion by this device, by the sampling process opened and close, can effectively guarantee coincideing of medium composition that component measures in chamber and cubing chamber.
4) medium of component measurement intracavity is little due to total amount, can facilitate heat temperature raising, accelerates gas-liquid separation and the layering of oil water mixture break milk separation, sediment deposition, measures gas-liquid interface for probe and oil-water ratio provides accuracy guarantee.
5) cubing cavity wall strikes off structure, it is possible to avoid because the fouling knot reason such as cured causes the change of Fabrication parameter cubing chamber cross-sectional area S, thus ensureing the precision of cubing.The present invention not only can effectively measure the component ratio of medium, moreover it is possible to simultaneously completes the metering of liquid measure and tolerance, this in the market existing separate unit instrument do not accomplish.
Accompanying drawing explanation
Fig. 1 is internal structure schematic diagram of the present invention;
Fig. 2 is top view of the present invention.
In figure: 1-gas-liquid entrance, 2-removing device, 3-motor drive component, 4-gear driven assembly, 5-gas outlet, 6-component measures cavity outer wall, 7-component measures cavity wall, 8-heater block, and 9-measures probe, 10-ball float, 11-gas liquid outlet, 12-valve, 13-liquid outlet, 14-cubing chamber, 15-component measures chamber.
Detailed description of the invention
Referring to Fig. 1, whole device includes: gas-liquid entrance 1, removing device 2, motor drive component 3, gear driven assembly 4, gas outlet 5, component measures cavity outer wall 6, and component measures cavity wall 7, heater block 8, measure probe 9, ball float 10, gas liquid outlet 11, valve 12, liquid outlet 13, cubing chamber 14, component measures chamber 15 etc..
For measuring at one a little volume component for measuring component is set in the big volume cubing chamber 14 of volume measures chamber 15, component is measured and is arranged measurement probe 9 in chamber 15, and component is measured chamber cavity and controlled to connect or self-isolation with cubing chamber cavity by movable device.This movable device is achieved in the following ways: the two-layer that described component measurement cavity 15 is nested by inside and outside wall 7,6 forms, and inside and outside wall 7,6 is equipped with perforate, and inside and outside wall has a certain proportion of perforated area, outer wall 6 and inwall 7 to have perforate from top to bottom.Outer wall opposed inner walls rotates whether the perforate controlling two-layer aligns, and during alignment, component measurement chamber connects with cubing chamber, and when not lining up, component measures chamber closing.Component is measured cavity and is provided with the driving assembly driving inwall or outer wall to rotate.This driving assembly can adopt machinery, electronic or gear driven assembly 4 etc..This movable device is not limited to said structure, also can adopt technical scheme described in the prior.
Component is measured chamber inside cavity vertical direction and is provided with measurement probe 9, and the related data that measurement probe 9 gathers is uploaded to control unit and is calculated and processes, and draws measurement result.Component is measured cavity and is additionally provided with heater block 8.This heater block 8 can adopt the multiple different structure such as heating rod, heating plate.The medium that component measures intracavity is little due to total amount, can facilitate heat temperature raising, accelerates gas-liquid separation and the layering of oil water mixture break milk separation, sediment deposition, measures gas-liquid interface for probe and oil-water ratio provides accuracy guarantee.Measure the pretreatment before using the mode of heating to measure in chamber at component, be more to ensure that certainty of measurement the key link.It is prevent medium from solidifying the heating (heat tracing) carried out that this heating is different from conventional equipment, the component of this device measures intracavity heating can arrange different temperature grade according to different working conditions, purpose is to make medium multi_layer extraction within a short period of time as far as possible, improve certainty of measurement, and the time will not oversize (the time oversize effectiveness just losing measurement).
Top, cubing chamber 14 is provided with gas-liquid entrance 1, gas outlet 5, and bottom is provided with liquid outlet 13, gas outlet 5 and liquid outlet 13 and is opened or closed by Valve controlling.This valve can adopt mechanically or electrically movable valve.
Cubing intracavity is additionally provided with liquid level emasuring device, for judging the state of feed liquor and discharge opeing.
For avoiding cubing cavity wall fouling to cause cubing inaccurate, cubing chamber is provided with the removing device 2 rotated along its inwall.Removing device 2 is connected with power drive assemblies 3, power drive assemblies drive automatic removing device to rotate.This power drive assemblies 3 can be connected with gear driven assembly 4, and gear driven assembly 4 can be used for driving measures cavity inner wall or outer wall rotation.Removing device 2 can be avoided because the fouling knot reason such as cured causes the change of Fabrication parameter S, thus ensureing the precision of cubing.
Measurement process (for oil field shaft mouth oil, gas and water three phase metering, finally to obtain the liquid measure of unit interval, oil mass, tolerance)
1, opening the gas outlet of cubing top of chamber, close the liquid outlet of bottom, gas-liquid mixture enters cubing chamber from the gas-liquid entrance at top, and component is measured chamber and kept and cubing chamber connected state, it is ensured that gas-liquid medium can synchronize to enter component and measure chamber；
2, (assuming that time span is t1) after certain time, closing component and measure chamber, dam measured medium, starts component and measures process；
3, while closing component measurement chamber, open liquid outlet, close gas outlet, until liquid drains, record from starting the time span t2 that discharge opeing terminates to discharge opeing；
4, component measures process: heating stands, and gas-liquid, profit separate as far as possible, and probe measures liquid level position and oil-water ratio, it is assumed that measurement result is liquid level h, the ratio p of oil in liquid
5, the liquid measure V1 of unit of account time, oil mass V2, tolerance V3:(suppose following Fabrication parameter: the cross-sectional area in cubing chamber is S, and the cross-sectional area relative volume measurement chamber that component measures chamber is sufficiently small)
V1=S*h/t1
V2=V1*p
V3=S*h/t2(illustrates: within the t2 time, gas extrudes cubing chamber original for cubing intracavity liquid S*h)
6, calculated, component measurement chamber is opened and is connected with cubing chamber, originally dammed and measured the liquid outflow in chamber at component, time delay certain time is so that its liquid outlet continued from cubing chamber flows out, then the gas outlet on top, cubing chamber is opened, close the liquid outlet of bottom, start the next measurement cycle.
Component is measured chamber and is placed in cubing intracavity portion by this device, by the sampling process opened and close, can effectively guarantee coincideing of medium composition that component measures in chamber and cubing chamber.The medium of cubing intracavity need not stop the long time, benefit be exactly cavity volume than conventional metering separator can little a lot, manufacturing cost can effectively reduce.It is calculated with the liquid level that component measurement chamber finally records, avoid conventional metering separator and measure that liquid level is big by the impact of oil gas foam, level gauging error, the unwarrantable defect of liquid volume measurement precision, because effectively eliminate the foam of gas-liquid interface layer through standing heating energy.
From the angle of liquid volume measurement, owing to adopting component to measure liquid level method again after measuring the heated process of medium of intracavity, compare tradition liquid volume measurement product and more can ensure that precision, and lower in cost: traditional method is unclean owing to gassiness separates and the time of staying is limited, liquid level is difficult to accurately measure, such as adopting the method not only structure complexity costs such as ball float, ultrasound wave, differential pressure high, liquid volume measurement precision and reliability also can not be guaranteed；The measurement probe that the present invention uses not only can measure oil-water ratio, moreover it is possible to measures liquid level, and owing to being stand the measured value that heating is later, ratio of precision conventional method is higher.The liquid level emasuring device that the present invention uses, tolerance metering is only had impact by its accuracy, unrelated with liquid volume measurement, required precision tolerance measured due to oil field is more much lower than the required precision of liquid volume measurement, so the liquid level emasuring device that the present invention uses is not high to required precision, it is possible to adopt common ball float 10 structure.
Therefore only from the angle of liquid volume measurement, the present invention also has obvious technical advantage and production and processing cost advantage.
Claims (9)
1. a gas-liquid multiphase measurement device, including measuring probe (9), it is characterized in that: a little volume component for measuring component is set in a big volume cubing chamber (14) being used for measuring volume and measures chamber (15), component is measured and is arranged measurement probe (9) in chamber (15), and component is measured chamber cavity and controlled to connect or self-isolation with cubing chamber cavity by movable device.
2. a kind of gas-liquid multiphase measurement device as claimed in claim 1, it is characterised in that: described component is measured cavity (15) and is provided with heater block (8).
3. a kind of gas-liquid multiphase measurement device as claimed in claim 1, it is characterized in that: described cubing chamber (14) top is provided with gas-liquid entrance (1), gas outlet (5), bottom is provided with liquid outlet (13), and gas outlet and liquid outlet are opened or closed by Valve controlling.
4. a kind of gas-liquid multiphase measurement device as claimed in claim 1, it is characterised in that: described cubing intracavity is additionally provided with liquid level emasuring device, for judging the state of feed liquor and discharge opeing.
5. a kind of gas-liquid multiphase measurement device as claimed in claim 1, it is characterized in that: the two-layer that described component measurement cavity (15) is nested by inside and outside wall forms, inside and outside wall is equipped with perforate, outer wall opposed inner walls rotates whether the perforate controlling two-layer aligns, during alignment, component measurement chamber connects with cubing chamber, and when not lining up, component measures chamber closing.
6. a kind of gas-liquid multiphase measurement device as claimed in claim 5, it is characterised in that: described component is measured cavity and is provided with the driving assembly driving inwall or outer wall to rotate.
7. a kind of gas-liquid multiphase measurement device as claimed in claim 1, it is characterised in that: described cubing chamber is provided with the removing device (2) rotated along its inwall.
8. a kind of gas-liquid multiphase measurement device as claimed in claim 7, it is characterised in that: described removing device (2) is connected with power drive assemblies (3), power drive assemblies drive automatic removing device to rotate.
9. a kind of gas-liquid multiphase measurement device as claimed in claim 8, it is characterised in that: described power drive assemblies (3) is connected with gear driven assembly (4), and gear driven assembly is used for driving measurement cavity inner wall or outer wall to rotate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610212047.3A CN105758493B (en) | 2016-04-07 | 2016-04-07 | A kind of gas-liquid multiphase measurement device |
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| CN201610212047.3A CN105758493B (en) | 2016-04-07 | 2016-04-07 | A kind of gas-liquid multiphase measurement device |
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| CN105758493A true CN105758493A (en) | 2016-07-13 |
| CN105758493B CN105758493B (en) | 2019-05-31 |
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Citations (8)
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| CN1908595A (en) * | 2006-08-08 | 2007-02-07 | 寿焕根 | Automatic metering device for oil, water and gas three-phase flow |
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| CN102778410A (en) * | 2012-07-31 | 2012-11-14 | 张伟 | Method and device for rude oil on-line phase-changing water-containing detection |
| US20140137645A1 (en) * | 2012-11-16 | 2014-05-22 | Amphenol Corporation | Fluid level sensor system and method |
| CN105165793A (en) * | 2015-09-25 | 2015-12-23 | 国网山东济阳县供电公司 | Bird repelling device |
| CN105222841A (en) * | 2014-06-13 | 2016-01-06 | 威海海和科技有限责任公司 | A kind of produced liquid in oil well measuring apparatus with bypass structure |
| CN205607479U (en) * | 2016-04-07 | 2016-09-28 | 杭州飞科电气有限公司 | Heterogeneous metering device of gas -liquid |
-
2016
- 2016-04-07 CN CN201610212047.3A patent/CN105758493B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908595A (en) * | 2006-08-08 | 2007-02-07 | 寿焕根 | Automatic metering device for oil, water and gas three-phase flow |
| CN102706401A (en) * | 2011-03-28 | 2012-10-03 | 威海海和科技有限责任公司 | Method and device for measuring oil content of oil well produced liquid |
| CN102661142A (en) * | 2012-05-08 | 2012-09-12 | 陈爱民 | Method and device for measuring productivity of oil well |
| CN102778410A (en) * | 2012-07-31 | 2012-11-14 | 张伟 | Method and device for rude oil on-line phase-changing water-containing detection |
| US20140137645A1 (en) * | 2012-11-16 | 2014-05-22 | Amphenol Corporation | Fluid level sensor system and method |
| CN105222841A (en) * | 2014-06-13 | 2016-01-06 | 威海海和科技有限责任公司 | A kind of produced liquid in oil well measuring apparatus with bypass structure |
| CN105165793A (en) * | 2015-09-25 | 2015-12-23 | 国网山东济阳县供电公司 | Bird repelling device |
| CN205607479U (en) * | 2016-04-07 | 2016-09-28 | 杭州飞科电气有限公司 | Heterogeneous metering device of gas -liquid |
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Inventor after: Du Huaidong Inventor after: Wang Yunping Inventor after: Sui Guoyong Inventor after: Xiang Yang Inventor after: Yuan Shiming Inventor before: Wang Yunping Inventor before: Xiang Yang Inventor before: Yuan Shiming Inventor before: Zhong Xiaoyan |
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