CN201083503Y - Crude oil multi-phase flowmeter - Google Patents
Crude oil multi-phase flowmeter Download PDFInfo
- Publication number
- CN201083503Y CN201083503Y CNU200720032795XU CN200720032795U CN201083503Y CN 201083503 Y CN201083503 Y CN 201083503Y CN U200720032795X U CNU200720032795X U CN U200720032795XU CN 200720032795 U CN200720032795 U CN 200720032795U CN 201083503 Y CN201083503 Y CN 201083503Y
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Abstract
The utility model provides a fuel multiphase flowmeter, wherein, the upper part of a gas-liquid centrifugal separation tank is provided with a gas outlet pipe, and the lower part of the gas-fluid centrifugal separation tank is provided with a fluid outlet pipe, wherein, the fluid outlet pipe is connected with a gas-liquid separation buffer tank, the gas outlet pipe is communicated with a gas outlet collecting pipe; the upper part of the gas-liquid separation buffer tank is provided with a buffer separated gas outlet pipe, and the lower part of the gas-liquid separation buffer tank is connected with a buffer fluid outlet pipe, wherein, the buffer fluid outlet pipe is connected into the lower part of a gas-liquid separation control tank, the gas outlet collecting pipe is connected into the upper part of the gas-liquid separation control tank, and the upper part of the gas-liquid separation control tank is also provided with a gas control outlet pipe which is connected into a gas-liquid isolation tank, and the gas-liquid isolation tank is connected with a gas-liquid collecting pipe; the lower part of the gas-liquid separation control tank is also connected with a liquid control outlet pipe which is communicated with the gas-liquid collecting pipe, and the gas-liquid collecting outlet pipe. The utility model has the gas-liquid separation buffer tank arranged in the structure of the gas-liquid centrifugal separation tank and the gas-liquid separation control tank, thereby buffering the problems of unbalanced quantities of coming gas and coming liquid, and achieving the aim of reducing impact.
Description
Technical field
The utility model relates to crude oil measurement device technique field, particularly a kind of crude oil multi-phase flowmeter with the Oil, Water, Gas three-phase separator measurement.
Background technology
At present in the heterogeneous automatic gauge technology that use in the oil field, be divided into oil gas water multiphase and do not separate on-line metering and separate two kinds of phase-splitting on-line meterings with the oil gas polyphasic flow.Through on-the-spot practical application, oil gas water multiphase does not separate on-line metering, exists measuring accuracy lower, measures to be subjected to flow pattern and fluidised form to influence technology drawbacks such as bigger.And oil gas water multiphase separates the technology of phase-splitting metering, mainly be to have adopted design polyphasic flow centrifuging jar and separating controlling jar, make crude oil, be communicated with by pipeline again from the state that becomes the branch phase fluid, carry out accurate single-phase metering, thereby realize comprehensive on-line metering.The also traditional isolation technics of the measurement stability of such technical method and degree of accuracy has breakthrough, and the crude oil multi-phase flowmeter is on the basis of this technology, further lift technique content and difficulty with at solve gas, come the inhomogeneous of liquid measure, the impulsive force of gas-liquid is very big in the operating process, the fluid instability, or the void fraction in the liquid is higher, and measuring accuracy such as can be restricted at technical barrier.
The utility model content
The purpose of this utility model provides a kind of any process pipeline such as wellblock, oil and gas multiphase flow that are applicable to, the fluidised form of especially pulsing or the oil gas on-line metering device under gas-liquid variation working condition greatly.
The purpose of this utility model is achieved through the following technical solutions:
A kind of crude oil multi-phase flowmeter, mainly comprise gas-liquid centrifuging jar, gas-liquid separation controlling tank, gas-liquid sealing chamber and associated line, it is characterized in that described gas-liquid centrifuging jar top establishes a gas outlet tube, a liquid outlet tube is established in the bottom, this liquid outlet tube other end connects a gas-liquid separation surge tank, and described gas outlet tube is communicated with a gas vent header; A buffering divided gas flow outlet is established on the top of described gas-liquid separation surge tank, this buffering divided gas flow outlet also is communicated with described gas vent header, described gas-liquid separation surge tank bottom connects a buffering liquid outlet, this buffering liquid outlet other end inserts a gas-liquid separation controlling tank bottom, the described gas vent header other end inserts described gas-liquid separation controlling tank top, described gas-liquid separation controlling tank top also is provided with gas control outlet, this gas control outlet inserts in the gas-liquid sealing chamber, and this gas-liquid sealing chamber connects a gas-liquid header; Described gas-liquid separation controlling tank bottom also connects liquid control outlet, and liquid control outlet is communicated with the gas-liquid header through profit gas component instrument, and the gas-liquid header connects a gas liquid outlet pipe.
A centrifugal overflow device is established in described gas-liquid separation surge tank inside, described centrifugal overflow device is by the overflow device outer tube and be located to manage in the penetrating up and down overflow device at outer tube middle part and form, described overflow device outer tube lower end is provided with the overflow device inlet, and the overflow device inlet is connected with the liquid outlet tube of gas-liquid centrifuging jar lower end.
Described gas-liquid centrifuging jar middle and upper part is provided with a gas-liquid centrifugal separator that Open Side Down, centrifugal separator is by the separation vessel outer tube, pipe is formed in the straight-through up and down separation vessel that the outer tube hub of separation vessel is provided with, separator inlet is rectangle and places in separation vessel outer tube and the separation vessel between the pipe, the interior pipe of Way in and separation vessel be from top to bottom tangent to helix to; Smooth connection one convex surface in the lower end bell guide up of pipe in the described separation vessel.
The utility model adopts the ON-LINE SEPARATION metering, adds a gas-liquid separation surge tank in existing gas-liquid centrifuging jar and gas-liquid separating controlling jar structure, has alleviated to come gas, come the unbalanced problem of liquid measure, realizes reducing to impact; And gas-liquid separation time lengthening, the emulsification gas of liquid reduces, and the void fraction in the liquid is obviously descended, and can not pass through the moisture void fraction detector of three-phase for most of oil product media, also can record liquid measure and tolerance more accurately, the measuring accuracy height.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the overflow device structural representation of separation buffer jar;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the centrifugal separator structural representation;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the flow regulation valve synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
As shown in Figure 1, the utility model mainly is made up of gas-liquid centrifuging jar 2, gas-liquid separation surge tank 3, gas-liquid separation controlling tank 4 and gas-liquid sealing chamber 20.Be provided with centrifugal separator 5 in the gas-liquid centrifuging jar 2, the inlet 51 of centrifugal separator is connected with gas-liquid induction pipe 1, gas-liquid centrifuging jar 2, gas-liquid separation surge tank 3 and gas-liquid separating controlling jar 4 tops or top are respectively equipped with centrifuging gas outlet tube 12, buffering divided gas flow outlet 14 and gas control outlet 17, and bottom or lower end are respectively equipped with centrifuging liquid outlet 13, buffering separating liquid outlet 15 and liquid control outlet 22.The buffer gas outlet 14 of the gas outlet tube 12 of gas-liquid centrifuging jar 2 and gas-liquid separation buffer jar 3 is connected with gas vent header 16 simultaneously, and by in the header 16 access gas-liquid separation controlling tank 4, the gas control outlet 17 of gas-liquid separation controlling tank 4 upper ends is communicated with gas-liquid sealing chamber 20 again, and last and gas-liquid header 21 connects.The liquid outlet tube 13 of gas-liquid centrifuging jar 2 bottoms or lower end is connected with gas-liquid separation surge tank 3, the buffering liquid outlet 15 of gas-liquid separation surge tank 3 bottoms or lower end is communicated with the bottom of gas-liquid separation controlling tank 4, and pressure unit 28 is housed on buffering liquid outlet 15.Gas-liquid separation controlling tank 4 bottoms are connected with liquid control outlet 22, and liquid control outlet 22 connects with gas-liquid header 21, is discharged by gas liquid outlet pipe 26 at last.The height of gas liquid outlet pipe is greater than or equal to controlling tank inner float ball liquid level.
As shown in Figure 2, vertically set up a centrifugal overflow device 6 in gas-liquid separation surge tank 3 inside, overflow device 6 outer setting have overflow device outer tube 62, in being provided with penetrating up and down overflow device, outer tube 62 middle parts manage 63, overflow device inlet 61 is located at overflow device outer tube 62 lower ends, be connected with the liquid outlet tube 13 of gas-liquid centrifuging jar 2 lower ends, temperature transmitter 27 is housed on liquid outlet tube 13.
As shown in Figure 4, the inlet 51 of centrifugal separator 5 is rectangle, and places in separation vessel outer tube 52 and the separation vessel between the pipe 53, manage in Way in and the separation vessel 53 from top to bottom tangent to helix to,
Gas-liquid centrifuging jar 2 middle and upper parts or top are provided with a gas-liquid centrifugal separator 5 that Open Side Down, separation vessel 5 is provided with separation vessel outer tube 52, separation vessel outer tube 52 centers are provided with the interior pipe 53 of separation vessel of a up/down perforation, separator inlet 51 is rectangle, place and manage between 53 in separation vessel outer tube 52 and the separation vessel, in Way in and the separation vessel pipe 53 from top to bottom tangent to helix to, its objective is in order to reduce flow resistance.The lower end of pipe 53 connects convex surface bell guide 54 up in the separation vessel, convex surface and knockout drum section angle are less than 90 °, 53 lower ends are smooth is connected for pipe in convex surface mouth and the separation vessel, its objective is and impel the fallen fluid of centrifugal separator 5 eddy flows to flow down along gas-liquid centrifuging jar 2 inwalls, the interior a small amount of remaining gas of liquid is further separated out, and guarantee separated gas upper reaches of separating out.
The Oil, Water, Gas polyphasic flow enters centrifugal separator 5 by gas-liquid induction pipe 1 through centrifugal separator inlet 51, through the air containing fluid after centrifugal separator 5 separation, at inertia---under gravity and the action of centrifugal force, guiding through bell guide 54, inwall along gas-liquid centrifuging jar 2 flows down, flow to the divided gas flow outlet 12 at gas-liquid centrifuging jar 2 tops or top simultaneously on the gas, through the centrifugation of centrifugal separator 5, the free gas in the pipeline in the Oil, Water, Gas polyphasic flow can reach and separate fully and the centrifuging of most of emulsification gas thus.
The concrete course of work is: oil, water, the gas mixed liquor tangentially enters gas-liquid centrifuging jar 2 through gas-liquid induction pipe 1, by cyclone centrifugal separator 5, polyphasic flow is under gravity and centrifugal action, realization is to the centrifugal cyclone initial gross separation of three-phase gas liquid, gas after the separation is discharged by centrifuging gas outlet tube 12, the liquid that contains a small amount of emulsification gas is through centrifuging liquid outlet 13, tangentially enter gas-liquid separation surge tank 3, gas-liquid is from bottom to top by inner centrifugal overflow device 6, fluid enters the upper reaches at whirlpool, in the separating process, under gravity and action of centrifugal force, gas-liquid realizes secondary separation, liquid flows to the surge tank bottom along 6 outer tube walls 62 of the overflow device in the gas-liquid separation surge tank, enter gas-liquid separation controlling tank 4 through buffering liquid outlet 15, isolated gas can be by pipe 63 in the penetrating up and down overflow device of middle part setting upwards, import gas vent header 16 through buffering divided gas flow outlet 14, overflow device inlet 61 is located at overflow device outer tube 62 lower ends, be connected with the liquid outlet tube 13 of gas-liquid centrifuging jar 2 bottoms or lower end, on liquid outlet tube 13 pipeline sections, temperature transmitter 27 be housed.Under pulsation fluidised form or gas-liquid changed big operating mode situation, the gas-liquid separation surge tank can play the impact that weakens pulsating fluid and the effect of stabilized fluid.Polyphasic flow enters the secondary separation process in the surge tank, has improved the separating effect of gas-liquid greatly, separating on the phase-splitting measurement technology, has realized the lifting of this technology.
The gas, the liquid that separate through surge tank enter gas-liquid separation controlling tank 4 by gas vent header 16, buffering liquid outlet 15 respectively, once more by centrifuging part emulsification gas; Before gas-liquid separation controlling tank 4 normal liquid levels are not set up, flow regulation valve 8 is in position, the end, full open position under the effect of gravity, separated gas is by without hindrance discharge between the valve opening 82 opened and the spool 83, this moment, no liquid measure was discharged because jar interior liquid level is lower than the open height that of outlet gas-liquid header 21; When rising to the range of control lower limit gradually and continue, the liquid level of gas-liquid separation controlling tank 4 rises, ball float 86 under buoyancy function along ball float guides 9 buoyance lift upwards, spool 83 rises with ball float 86, circulation area between valve opening 82 and the spool 83 reduces, the gas discharge rate reduces, liquid level further rises in jar, the differential pressure at controlling tank and header place rises gradually, liquid level rises to the height that is higher than gas liquid outlet header 21 in jar, after the jar internal pressure reaches the required pressure reduction of discharge opeing (flow resistance differential pressure) with the differential pressure that exports header 21, liquid begins to discharge gas-liquid separation controlling tank 4, this moment, Tathagata liquid was big, liquid level continues to rise in jar, then the gas delivery flow reduces, differential pressure increases, and draining flow increases thereupon, and a jar interior liquid level begins to descend subsequently, it is big that the ball-cock assembly circulation area becomes, outlet tolerance increases, differential pressure reduces thereupon, the outlet liquid measure also reduces thereupon, repeats said process, reaches a kind of gas-liquid turnover plateau at last; Tathagata airshed is big, differential pressure increases, liquid level begins to descend in jar, big, outlet tolerance increase that the ball-cock assembly circulation area becomes, when dropping to the height that is lower than gas liquid outlet header 21 and the required differential pressure of discharge opeing, draining flow diminishes thereupon, and the liquid level of the controlling tank of gas-liquid separation simultaneously 4 begins again to rise gradually, repeat above-mentioned liquid level uphill process, reach gas-liquid separation controlling tank 4 interior liquid levels and change within a certain height.After this, if the gas liquid ratio of the gas and liquid mixture that pipeline comes and efflux line pressure variations, cause the rising or the decline of liquid level in the gas-liquid separation controlling tank 4, flow regulation valve 8 all can be controlled at pressure reduction on the required numerical value of discharge opeing automatically, liquid level is controlled in the scope of setting.For low discharge,, form gap discharge opeing metering (atmospheric pressure apocenosis) by the height and the required differential pressure of liquid road flow resistance of outlet header 21; For little tolerance is gap exhaust metering too.A blowoff valve 31 is adorned in gas-liquid separation controlling tank 4 bottoms.
Between gas control outlet 17 and the gas-liquid sealing chamber 20 gas vent valve 18 and gas meter 19 are installed, between liquid control outlet 22 and the gas liquid outlet header 21 liquid outlet valve 23, liquid flowmeter 24 and profit gas component instrument 25 are housed successively, and with the supporting use of computer system, form the on-line metering device of the complete gas-liquid delivery fluid of a cover.Gas-liquid sealing chamber 20 is installed in before the gas liquid outlet pipe 26, cause with the pressure surge of avoiding gas liquid outlet pipe 26 that liquid is counter and be poured into gas meter and influence the gasometer accuracy of measurement that profit gas component instrument 25 acts on water percentage, the void fraction of on-line monitoring liquid road fluid.
Gas-liquid centrifuging jar 2 is shelved on respectively on the knockout drum base 29 gentle liquid controlling tank bases 30 with gas-liquid controlling tank 4, and whole erection seat drops on the measuring apparatus base 32.
Claims (3)
1. crude oil multi-phase flowmeter, mainly comprise gas-liquid centrifuging jar, gas-liquid separation controlling tank, gas-liquid sealing chamber and associated line, it is characterized in that described gas-liquid centrifuging jar (2) top establishes a gas outlet tube (12), a liquid outlet tube (13) is established in the bottom, this liquid outlet tube (13) other end connects a gas-liquid separation surge tank (3), and described gas outlet tube (12) is communicated with a gas vent header (16); A buffering divided gas flow outlet (14) is established on the top of described gas-liquid separation surge tank (3), this buffering divided gas flow outlet (14) also is communicated with described gas vent header (16), described gas-liquid separation surge tank (3) bottom connects a buffering liquid outlet (15), this buffering liquid outlet (15) other end inserts gas-liquid separation controlling tank (a 4) bottom, described gas vent header (16) other end inserts described gas-liquid separation controlling tank (4) top, described gas-liquid separation controlling tank (4) top also is provided with gas control outlet (17), this gas control outlet (17) inserts in the gas-liquid sealing chamber (20), and this gas-liquid sealing chamber (20) connects a gas-liquid header (21); Described gas-liquid separation controlling tank (4) bottom also connects liquid control outlet (22), and liquid control outlet (22) is communicated with gas-liquid header (21) through profit gas component instrument, and gas-liquid header (21) connects a gas liquid outlet pipe (26).
2. crude oil multi-phase flowmeter according to claim 1, it is characterized in that described gas-liquid separation surge tank (3) inside establishes a centrifugal overflow device (6), described centrifugal overflow device (6) is by overflow device outer tube (62) and be located in the penetrating up and down overflow device at outer tube (62) middle part pipe (63) and form, described overflow device outer tube (62) lower end is provided with overflow device inlet (61), and overflow device inlet (61) is connected with the liquid outlet tube (13) of gas-liquid centrifuging jar (2) lower end.
3. crude oil multi-phase flowmeter according to claim 1, it is characterized in that described gas-liquid centrifuging jar (2) middle and upper part is provided with a gas-liquid centrifugal separator (5) that Open Side Down, centrifugal separator (5) is by separation vessel outer tube (52), pipe (53) is formed in the straight-through up and down separation vessel that separation vessel outer tube (52) center is provided with, separator inlet (51) is rectangle and places in separation vessel outer tube (52) and the separation vessel between the pipe (53), manage in Way in and the separation vessel (53) be from top to bottom tangent to helix to; Smooth connection one convex surface in the lower end bell guide (54) up of pipe (53) in the described separation vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720032795XU CN201083503Y (en) | 2007-09-08 | 2007-09-08 | Crude oil multi-phase flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720032795XU CN201083503Y (en) | 2007-09-08 | 2007-09-08 | Crude oil multi-phase flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083503Y true CN201083503Y (en) | 2008-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720032795XU Expired - Fee Related CN201083503Y (en) | 2007-09-08 | 2007-09-08 | Crude oil multi-phase flowmeter |
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| Country | Link |
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| CN (1) | CN201083503Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088621A (en) * | 2013-04-01 | 2014-10-08 | 上海一诺自动化工程有限公司 | Single-well multiphase metering device |
| CN104632185A (en) * | 2013-11-07 | 2015-05-20 | 兰州科庆石油科技有限公司 | Ultrahigh water cut oil well multi-phase flow metering device |
| CN110398267A (en) * | 2019-07-23 | 2019-11-01 | 上海一诺仪表有限公司 | A kind of three-phase measuring system that realizing logic control and metering method |
| CN114166405A (en) * | 2021-11-24 | 2022-03-11 | 大庆鑫得丰石油技术有限公司 | Wireless acquisition diagnosis analysis system suitable for single-well multiphase flow monitoring device |
-
2007
- 2007-09-08 CN CNU200720032795XU patent/CN201083503Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088621A (en) * | 2013-04-01 | 2014-10-08 | 上海一诺自动化工程有限公司 | Single-well multiphase metering device |
| CN104632185A (en) * | 2013-11-07 | 2015-05-20 | 兰州科庆石油科技有限公司 | Ultrahigh water cut oil well multi-phase flow metering device |
| CN104632185B (en) * | 2013-11-07 | 2017-04-26 | 兰州科庆仪器仪表有限责任公司 | Ultrahigh water cut oil well multi-phase flow metering device |
| CN110398267A (en) * | 2019-07-23 | 2019-11-01 | 上海一诺仪表有限公司 | A kind of three-phase measuring system that realizing logic control and metering method |
| CN110398267B (en) * | 2019-07-23 | 2021-05-11 | 上海一诺仪表有限公司 | Oil-water-gas three-phase metering system and metering method for realizing logic control |
| CN114166405A (en) * | 2021-11-24 | 2022-03-11 | 大庆鑫得丰石油技术有限公司 | Wireless acquisition diagnosis analysis system suitable for single-well multiphase flow monitoring device |
| CN114166405B (en) * | 2021-11-24 | 2022-05-27 | 大庆市瑞斯德石油机械制造有限公司 | Wireless acquisition diagnosis analysis system suitable for single-well multiphase flow monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20150908 |
|
| EXPY | Termination of patent right or utility model |