CN2311758Y - Segment plug generator and oil, gas and liquid three-phase flow measuring unit using the same - Google Patents
Segment plug generator and oil, gas and liquid three-phase flow measuring unit using the same Download PDFInfo
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- CN2311758Y CN2311758Y CN 97229522 CN97229522U CN2311758Y CN 2311758 Y CN2311758 Y CN 2311758Y CN 97229522 CN97229522 CN 97229522 CN 97229522 U CN97229522 U CN 97229522U CN 2311758 Y CN2311758 Y CN 2311758Y
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Abstract
The utility model relates to a segment plug generator and an oil, gas and liquid three-phase flow measuring device using the same. The segment plug generator comprises a triple or multiple pipe joint 2 arranged on an oil pipeline 1, a triple or multiple device 5, two or more than two by-pass pipelines 3 arranged between the triple pipe joint 2 and the triple or multiple device 6, and gas-liquid separation devices 4 respectively arranged on the two or more than two by-pass pipelines 3. The triple device 5 is controlled by a control device to operate with periodicity, which makes the liquid flow alternately flow by one of the two or more than two by-pass pipelines 3 according to a definite period. A continuous segment plug flow is formed in the oil pipeline 1 downstream.
Description
The utility model relates to a kind of multiphase flow pattern adjusting gear, specifically, relates to slug generating means that is applicable to oil-gas-water three-phase flow in the pipeline and the oil-gas-water three phase flow quantity measurement mechanism that uses this slug generating means.
Oil-gas-water three-phase flow in the pipeline is an extreme complex multivariable random process, presents different flow patterns under different condition, for example, mainly has following four kinds of flow patterns in horizontal pipe: laminar flow, slug flow, annular flow and bubble flow; Four kinds of flow patterns are mainly also arranged in vertical pipeline: bubble flow, slug flow, seethe stream and annular flow.In addition, between above-mentioned various flow patterns, also exist some kinds of transition flow patterns.Therefore, the problems of measurement of oil-gas-water three-phase flow is a global difficult problem for a long time always.Existing several multi-phase flowmeters few in number can only be applicable to a certain or a few flow pattern or some flow range bar none, can't generally be suitable in whole flow pattern or flow range.This has just limited existing multiphase flow rates measuring technique applying in the production of hydrocarbons practice to a great extent.Want further to improve the measuring accuracy and the scope of application of existing multi-phase flowmeter, a valid approach is exactly that flow pattern complicated and changeable is organized into a kind of known and flow pattern that be easy to measure, selects for use suitable multi-phase flowmeter to measure then.Inventor of the present utility model is finding that through after the exploratory development for the cross correlation measurement method of generally using in the existing multiphase flow rates measuring technique, slug flow is easy to measure most.
The purpose of this utility model is to provide a kind of being applicable to that oil-gas-water three-phase flow in the pipeline is carried out the slug generating means that flow pattern is adjusted.
Another purpose of the present utility model is to provide a kind of oil-gas-water three phase flow quantity measurement mechanism of measuring liquid phase flow and water percentage under high gassiness condition.
For realizing above-mentioned first purpose, the utility model provides a kind of being installed in to be used for the slug generating means that flow pattern is adjusted on the oil pipeline, it comprises a threeway that is connected with an end of oil pipeline (or how logical) pipe adapter, a threeway that is connected with the other end of oil pipeline (or how logical) device, two (or more than two) are installed in the by-pass line between described threeway (or how logical) pipe adapter and described threeway (or the how logical) device, two are installed in described two gas-liquid separation devices in (or more than two) by-pass line, and control device, the periodically action of described threeway (or how logical) device by described control device control, make that each road in two (or more than two) by-pass lines is logical according to certain cycle wheel conductance, simultaneously, another road (or other each road) is in closed condition, thereby make liquid stream according to certain cycle alternately from two (or more than two) by-pass lines a road in flow through, in downstream line, form a continuous slug flow.
For realizing above-mentioned second purpose, the utility model provides a kind of flow measurement device of oil-gas-water three-phase flow, this device has used slug generating means of the present utility model, also comprise being installed in the locational phase fraction measurement device that is positioned at the gas-liquid separation device downstream in described two (or more than two) by-pass lines, be used for being in when closing the lower liquid of gassiness is filled in capable measurement of water ratio at by-pass line; And flow velocity that is applicable to the measuring section plug flow or flow measurement device, especially a simple crosscorrelation velocimeter or flowmeter that is installed on the oil pipeline that is positioned at above-mentioned threeway (or how logical) device downstream.
Slug generating means of the present utility model is directly installed on the oil pipeline and can be organized into slug flow to the flow pattern of oil-gas-water three-phase flow, be installed in the interior flow velocity of this device downstream certain distance or the measuring accuracy and the scope of application of flow measurement device thereby improve.Use oil-gas-water three phase flow quantity measurement mechanism of the present utility model, can improve the measuring accuracy and the measurement range of oil-gas-water three-phase flow flow, and can under the state of low gas content, measure the water percentage in the oil-water mixture, improve measuring precision of water content in water greatly.
Other advantages of device of the present utility model are: this device can be connected in series simple installation with the on-the-spot oil pipeline of all size by joint flange; Owing to always have one the tunnel to be conducting in two at any time (or more than two) by-pass lines, so security is good, does not have the problem of building the pressure; In addition, can realize the purpose that flow pattern is adjusted by mechanical means fully, measuring media is not had any infringement.
By below in conjunction with the detailed description of accompanying drawing to preferred embodiment of the present utility model, other purpose of the present utility model and advantage will be more obvious.
Fig. 1 is the synoptic diagram of a kind of embodiment of slug generating means of the present utility model.
Fig. 2 is the synoptic diagram of a kind of embodiment of oil-gas-water three phase flow quantity measurement mechanism of the present utility model.
Fig. 3 is the synoptic diagram of a kind of three-way device used in the slug generating means of the present utility model.
Fig. 4 is the synoptic diagram of another three-way device used in the slug generating means of the present utility model.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 shows a kind of embodiment of slug generating means of the present utility model.Among the figure, label 1 is an oil pipeline, and 2 are tee pipe coupling, and 3 is by-pass line, and 4 is gas-liquid separation device, and 5 is three-way device.Oil-gas-water three-phase flow or biphase gas and liquid flow flow into tee pipe coupling 2 by the oil pipeline 1 of upstream, flow into two by-pass lines 3 more from here respectively and be installed in this ducted gas-liquid separation device 4, flow into the oil pipeline 1 in downstream then via three-way device 5.
By not shown control device, three-way device 5 is according to a road in logical two by-pass lines 3 of the cycle wheel conductance of setting, and meanwhile, thread a pipe and be in closed condition in another roadside.That is, at one time in, have and have only one the tunnel to be conducting in two by-pass lines 3.Like this, 4 pairs of liquid of gas-liquid separation device in the by-pass line 3 that is in closed condition flow to the separation of promoting the circulation of qi liquid and form a liquid plug, when three-way device 5 makes that the former by-pass line 3 that is in closed condition switches to conducting state, liquid plug in this by-pass line 3 just is released with pipe stream, forms slug flow in the downstream of three-way device 5.So go round and begin again, in the oil pipeline 1 in the downstream of slug generating means of the present utility model, just formed a continuous slug flow.
The used control device of the utility model can be a machine control unit, also can be electrical control gear or computer control system.The used gas-liquid separation device of the utility model can be to be selected from a kind of in gravity type gas-liquid separation device, centrifugal separator and the collision type tripping device.
Figure 2 shows that the synoptic diagram of the oil-gas-water three phase flow quantity measurement mechanism that uses slug generating means of the present utility model.Among Fig. 2, tee pipe coupling 2, by-pass line 3, gravity type knockout drum 4 and three-way device 5 from top to down are installed in the oil pipeline 1 successively and not shown control device has constituted oil-gas-water three phase flow quantity measurement mechanism of the present utility model together.In addition, the downstream of the gravity type knockout drum 4 in by-pass line is equipped with phase fraction measurement device 6, simple crosscorrelation velocimeter or cross correlation flowmeter 7 are installed in the oil pipeline 1 in three-way device 5 downstreams, thereby have constituted oil-gas-water three phase flow quantity measurement mechanism of the present utility model.Phase fraction measurement device 6 wherein can be filled in the measurement of capable water percentage to the very low liquid of void fraction; Simple crosscorrelation flow velocity or flowmeter are used for the slug flow that the slug generating means to oil-gas-water three phase flow quantity measurement mechanism of the present utility model produced and carry out heterogeneous measurement.
The used three-way device 5 of slug generating means of the present utility model can be accomplished in several ways.
For example, as shown in Figure 3, can realize by an electric three-way valve (or solenoid valve) 8.Two inlets of electric three-way valve 8 are connected to the endpiece of two by-pass lines 3, and the outlet of electric three-way valve is connected on the oil pipeline 1.By the control of control device, electric three-way valve 8 is according to logical two by-pass lines 3 of certain cycle wheel conductance.
In addition, as shown in Figure 4, threeway (or how logical) device 5 also can be the motorized valve group that two identical 9 and tee pipe couplings of straight-through motorized valve (or solenoid valve) 10 constitute, each straight-through motorized valve 9 inlet is connected to the endpiece of each by-pass line 3, its outlet is connected to the inlet end of tee pipe coupling 10, and the outlet of tee pipe coupling 10 is connected to oil pipeline 1.Under the control of control device, open a straight-through motorized valve 9 in the motorized valve group in turn according to certain cycle, logical always in addition simultaneously motorized valve 9 is in closed condition, has so just realized periodically taking turns the purpose of conducting two by-pass lines 3.
It should be noted that preferred implementation recited above just is used to illustrate the utility model, do not constitute restriction of the present utility model.
Though below describe embodiment of the present utility model in conjunction with the accompanying drawings in detail,, still can make various modifications and changes and without prejudice to essence of the present utility model and scope to above-mentioned embodiment for those skilled in the art in this area.Therefore, scope of the present utility model only is defined by the following claims.
Claims (7)
1. slug generating means is installed in and is used to adjust flow pattern on the oil pipeline, it is characterized in that comprising:
One threeway (or how logical) pipe adapter (2) is connected with an end of oil pipeline;
One threeway (or how logical) device (5) is connected with the other end of oil pipeline;
Two (or more than two) by-pass lines (3) are installed between described threeway (or how logical) pipe adapter (2) and described threeway (or the how logical) device (5);
Two (or more than two) gas-liquid separation devices (4) are installed in described two (or more than the two) by-pass lines (3); And
A control device, the periodically action of described threeway (or how logical) device (5) by described control device control, make that each road in two (or more than two) by-pass lines (3) is logical according to certain cycle wheel conductance, simultaneously, another road (or other each road) is in closed condition, thereby make oil-gas-water three-phase flow or biphase gas and liquid flow according to certain cycle alternately from two (or more than two) by-pass lines (3) a road in flow through, in downstream line, form a continuous slug flow.
2. according to the slug generating means of claim 1, it is characterized in that: described gas-liquid separation device (4) is for being selected from a kind of in gravity type gas-liquid separation device, centrifugal separator and the collision type tripping device.
3. according to the slug generating means of claim 1, it is characterized in that: described threeway (or many logical) device (5) can be a threeway (or how logical) motorized valve (or solenoid valve), also the valve group that can be made up of two (or more than two) identical straight-through motorized valve (or solenoid valve) and a threeway (or leading to) pipe adapter more.
4. according to the slug generating means of claim 1, it is characterized in that: described control device can be a kind of in machine control unit, electrical control gear and the computer control system.
5. use the oil-gas-water three phase flow quantity measurement mechanism of any slug generating means among the claim 1-4, it is characterized in that comprising: two (or more than two) phase fraction measurement devices (6), the downstream position of described gas-liquid separation device (4) is gone up, is positioned to two (or more than the two) by-pass lines (3) that are installed in described slug generating means respectively, and flow velocity or flow measurement device (7), be installed on the oil pipeline (1) in described threeway (or how logical) device (5) downstream.
6. according to the oil-gas-water three phase flow quantity measurement mechanism of claim 5, it is characterized in that: described phase fraction measurement device (6) is selected from a kind of in densitometer, microwave remote sensor and the capacitive transducer of gamma-ray density meter, vibration.
7. according to the oil-gas-water three phase flow quantity measurement mechanism of claim 5, it is characterized in that: described flow velocity or flow measurement device (7) are selected from a kind of in simple crosscorrelation velocimeter and the cross correlation flowmeter.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97229522 CN2311758Y (en) | 1997-11-07 | 1997-11-07 | Segment plug generator and oil, gas and liquid three-phase flow measuring unit using the same |
| AU50469/98A AU5046998A (en) | 1996-11-19 | 1997-11-19 | A device and a method of measuring flow rate for a three phase fluid |
| PCT/CN1997/000132 WO1998022783A1 (en) | 1996-11-19 | 1997-11-19 | A device and a method of measuring flow rate for a three phase fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97229522 CN2311758Y (en) | 1997-11-07 | 1997-11-07 | Segment plug generator and oil, gas and liquid three-phase flow measuring unit using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2311758Y true CN2311758Y (en) | 1999-03-24 |
Family
ID=33942292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97229522 Expired - Lifetime CN2311758Y (en) | 1996-11-19 | 1997-11-07 | Segment plug generator and oil, gas and liquid three-phase flow measuring unit using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2311758Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000006974A1 (en) * | 1998-07-28 | 2000-02-10 | Lanzhou Haimo Technologies Co., Ltd. | A measuring device for the gas-liquid flow rate of multiphase fluids |
| CN101554541B (en) * | 2009-04-03 | 2012-11-28 | 江苏工业学院 | Complex T-shaped pipe separator for multi-phase flow separation and separation method thereof |
| CN108316893A (en) * | 2018-03-14 | 2018-07-24 | 天津大学 | Controllable type slug flow generating apparatus |
-
1997
- 1997-11-07 CN CN 97229522 patent/CN2311758Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000006974A1 (en) * | 1998-07-28 | 2000-02-10 | Lanzhou Haimo Technologies Co., Ltd. | A measuring device for the gas-liquid flow rate of multiphase fluids |
| GB2361322A (en) * | 1998-07-28 | 2001-10-17 | Lanzhou Haimo Technologies Co | A measuring device for the gas-liquid flow rate of multiphase fluids |
| GB2361322B (en) * | 1998-07-28 | 2002-09-25 | Lanzhou Haimo Technologies Co | Apparatus for measuring flow rates of individual phases of gas/liquid multiphase flow |
| CN101554541B (en) * | 2009-04-03 | 2012-11-28 | 江苏工业学院 | Complex T-shaped pipe separator for multi-phase flow separation and separation method thereof |
| CN108316893A (en) * | 2018-03-14 | 2018-07-24 | 天津大学 | Controllable type slug flow generating apparatus |
| CN108316893B (en) * | 2018-03-14 | 2023-02-24 | 天津大学 | Controllable section plug flow generating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: DOU JIANWEN TO: LANZHOU HAIMO TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 730030 Gansu Province Chengguan District of Lanzhou city Zhangye Road No. 61 Building No. 18 Taisheng Patentee after: Lanzhou Haimo Technologies Co., Ltd. Address before: 5, West 888, Nanchang Road, Lanzhou, Gansu, China Patentee before: Dou Jianwen |
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| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |