CN201503284U - Large-caliber oil-gas-water tri-phase flow measuring device - Google Patents
Large-caliber oil-gas-water tri-phase flow measuring device Download PDFInfo
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- CN201503284U CN201503284U CN2009201439148U CN200920143914U CN201503284U CN 201503284 U CN201503284 U CN 201503284U CN 2009201439148 U CN2009201439148 U CN 2009201439148U CN 200920143914 U CN200920143914 U CN 200920143914U CN 201503284 U CN201503284 U CN 201503284U
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Abstract
The utility model provides a large-caliber oil-gas-water tri-phase flow measuring device. A combined-type sensor integrating an Venturi densimeter and a monoenergetic gamma-ray densimeter into a whole is mounted on an inverted U-shaped pipe, so as to measure the total flow and air rate of tri-phase fluid; a sampling head is mounted at the lower end of the downstream bent pipe of the U-shaped pipe; an outlet of the sampling head is connected with a fluid type adjustor; the outlet of the sampling head and the fluid type adjustor form an on-line serial fluid sampling system together which is used for sampling typical fluid samples in the tri-phase fluid; and an outlet at the bottom end of the fluid type adjustor is connected with a pair of hydrous analyzers to form a sampling and hydrous measuring system. The caliber of the tri-phase flow measuring device ranges from DN 150mm to DN 400mm; furthermore, the utility model completely meets the large-flow oil-gas-water tri-phase mixed flow measuring requirement, and has favorable measuring performance and application prospect. The utility model can be used for measuring barreler production and metering oil and gas mixed flow of an oil transferring station or a united station in the oilfield production, changes the traditional oil and gas gathering and transferring process, and provides reliable and convenient measuring means for oil development.
Description
Technical field
The utility model relates to oilfield water and does not separate production metering of oil wells device technique field, particularly a kind of large-caliber gas-oil water three-phase flow measurement mechanism.
Background technology
The oil well produced fluid contains three kinds of components of Oil, Water, Gas usually, and production metering of oil wells is an important step in the production of hydrocarbons technology.Well measurement technology path commonly used has following two kinds: the one, and adopt traditional two phase separator or triphase separator separately with gas-liquid or oil, gas, water, score with single-phase flow and Ce Liang not.The 2nd, adopt unseparated multi-phase flowmeter to realize the oil gas water gaging.Traditional separating and measuring cyclone separator arrangement complexity, volume, weight are big, the investment cost height, maintenance capacity is big, and maintenance cost is also big.The multi-phase flowmeter measuring technique is the well measurement advanced technology in the world today, increasing both at home and abroad oil field employing multiphase flow measurement under development technology.For many years, because technical reason, the multi-phase flowmeter bore that supplier can provide in the world wide only limits to DN50mm, DN80mm, several specifications of DN100mm, the flowmeter of these specifications can be used in the individual well measurement usually, for the oil well of high yield, or the big flow mixed transportation of oil and gas of petroleum transferring station, multi-purpose station is measured and can not be satisfied.
The utility model content
Technical problem to be solved in the utility model be exactly to provide a kind of simple in structure, principle is feasible, can measure the large-caliber gas-oil water three-phase flow measurement mechanism of big flow.
Technical matters of the present utility model adopts following technical proposals to solve:
A kind of large-caliber gas-oil water three-phase flow measurement mechanism a: venturi and the incorporate combined sensor of monoenergetic gamma-ray densitometer are installed on upside-down mounting U-shaped pipe, are used to measure the total flow and the void fraction of three-phase fluid; A sampling head is installed in bend pipe lower end, downstream at U type pipe, and the outlet of sampling head connects a flow pattern adjuster, and forms online liquid serial sampling system with the flow pattern adjuster, is used for obtaining representational fluid sample from three-phase fluid; The outlet of described flow pattern adjuster bottom connects a dual intensity analyzer of water content, constitutes sampling and moisture measuring system.
Described sampling head is one to have the inclination funnel of grid.
Upstream section at described combined sensor is equipped with pressure unit, and tract is equipped with temperature transmitter.
The utility model has adopted venturi to measure total flow, monoenergetic gamma-spectrometry void fraction, and venturi and monoenergetic gamma are incorporate sensor combinations; Adopt the dual intensity gamma sensor to measure water percentage; Adopt the sampling head and the flow pattern adjuster of centrifugal+throttling to form sampling system to obtain representational fluid sample.Bore of the present utility model has been satisfied the oil gas water three phase of big flow fully and has been mixed defeated measurement demand by DN150mm to DN400mm, has good measurement performance and application prospect.Can be used for the mixed transportation of oil and gas metering of barreler production measurement, petroleum transferring station or multi-purpose station in the field produces, changed traditional oil-gas gathering and transferring technology, for oil development provides reliably measurement means easily.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated:
The utility model comprises: the incorporate combined sensor 1 of venturi and monoenergetic gamma-ray densitometer on the pipeline that its import that is installed in the inverted U pipe makes progress, is used to measure the total flow and the void fraction of three-phase fluid.In the bend pipe lower end, downstream of U type pipe one online sampling head 2 is installed, this sampling head utilizes the structure of centrifugal and Throttle Principle to form, the outlet of sampling head 2 is connected with flow pattern adjuster 3, sampling head 2 and the online liquid serial sampling of flow pattern adjuster 3 compositions system are to obtain representational fluid sample.
Gas-liquid mixture fluid is through upside-down mounting U-shaped pipe, liquid is because of the flows outside of action of centrifugal force to bend pipe, the liquid dividing head of installing in the bend pipe lower end is an inclination funnel that has grid, fluid enters flow pattern adjuster 3 through inclination funnel and connecting pipe, effect through sampling head and flow pattern adjuster, the sample of guaranteeing to obtain is used for obtaining representational fluid sample from three-phase fluid based on liquid.The outlet of flow pattern adjuster 3 bottoms connects a dual intensity analyzer of water content 4, constitutes the moisture measuring system of sampling.Upstream section at combined sensor 1 is equipped with pressure unit 6, and tract is equipped with temperature transmitter 5, and pressure, temperature transmitter are the accessory instruments of combined sensor.
The utility model whole measuring system is equipped with data Collection ﹠ Processing System DAU, and DAU gathers the measuring-signal of all the sensors, the treated flow that calculates each phase of three-phase fluid.
The utility model is used the total flow that classical Venturi meter is measured the oil gas water three phase fluid; Measure the void fraction and the water percentage of fluid respectively with monoenergetic gamma sensor and dual intensity gamma sensor; Draw the flow of each phase fluid of three-phase stream according to the computing of relevant mathematical model.The measurement and the computation process of phase fraction and flow are as follows:
Measure the total flow of three-phase fluid by classical Venturi meter;
Measure the gas-liquid phase fraction by the monoenergetic gamma sensor;
Measure the water percentage of the fluid sample of obtaining through sampling system by the dual intensity gamma sensor;
Can calculate liquid measure, tolerance, pure oil mass and the water yield according to the above total flow that records, void fraction, water percentage by the mathematical model of special use.
The pressure of the online installation of the utility model and temperature transmitter are measured working condition pressure and temperature, and the operating mode flow correction that is used for measuring is the flow of standard state.
Principle of work of the present utility model is as follows:
When three-phase fluid entered measuring system by inlet, the venturi of inverted U pipe upstream side and monoenergetic gamma combined sensor 1 can be measured the total flow and the void fraction of fluid.
The sampling head 2 that inverted U pipe bend pipe downside is installed constitutes sampling system with the flow pattern adjuster, can obtain representational fluid sample, and sample enters dual intensity analyzer of water content 4 through the outlet of the bottom of flow pattern adjuster 3, thereby measures liquid aqueous rate.
DAU is the data acquisition process unit, is used for the measuring-signal of collection site instrument, carries out data processing and computing; DAU can be transferred to host computer with measurement data and result by the RS485 interface, shows, function such as storage, printing; Simultaneously, can carry out soft maintenance to slave computer, sensor be implemented to demarcate etc. by host computer.DAU is installed in the interior explosion-proof tank of flowmeter sledge frame.
Claims (3)
1. large-caliber gas-oil water three-phase flow measurement mechanism is characterized in that:
One venturi and the incorporate combined sensor of monoenergetic gamma-ray densitometer (1) are installed on upside-down mounting U-shaped pipe, are used to measure the total flow and the void fraction of three-phase fluid;
A sampling head (2) is installed in bend pipe lower end, downstream at U type pipe, the outlet of sampling head (2) connects a flow pattern adjuster (3), and form online liquid serial sampling system with flow pattern adjuster (3), be used for obtaining representational fluid sample from three-phase fluid; The outlet of described flow pattern adjuster (3) bottom connects a dual intensity analyzer of water content (4), constitutes sampling and moisture measuring system.
2. large-caliber gas-oil water three-phase flow measurement mechanism according to claim 1 is characterized in that described sampling head (2) is one to have the inclination funnel of grid.
3. large-caliber gas-oil water three-phase flow measurement mechanism according to claim 1 is characterized in that at the Upstream section of described combined sensor (1) pressure unit (6) being installed, and tract is equipped with temperature transmitter (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201439148U CN201503284U (en) | 2009-06-27 | 2009-06-27 | Large-caliber oil-gas-water tri-phase flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201439148U CN201503284U (en) | 2009-06-27 | 2009-06-27 | Large-caliber oil-gas-water tri-phase flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201503284U true CN201503284U (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201439148U Expired - Lifetime CN201503284U (en) | 2009-06-27 | 2009-06-27 | Large-caliber oil-gas-water tri-phase flow measuring device |
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| CN (1) | CN201503284U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135484A (en) * | 2010-12-16 | 2011-07-27 | 西南石油大学 | Device and method for testing gas-water ratio of underground sample with water gas reservoir and water soluble gas reservoir |
| CN102435245A (en) * | 2012-01-06 | 2012-05-02 | 兰州海默科技股份有限公司 | Steam flow measuring device and method |
| CN103697950A (en) * | 2013-08-29 | 2014-04-02 | 兰州海默科技股份有限公司 | Method and device for measuring flow of oil, gas and water in non-conventional natural gas on line |
| CN103808378A (en) * | 2012-11-14 | 2014-05-21 | 克洛纳有限公司 | Nuclear magnetic flow meter and method for operation of nuclear magnetic flow meters |
| CN104596591A (en) * | 2015-01-16 | 2015-05-06 | 丹东丹联仪表检测技术研究有限公司 | Three-phase fluid detector and detection method for respective flows of three-phase fluid |
| CN106706047A (en) * | 2017-01-10 | 2017-05-24 | 海默科技（集团）股份有限公司 | Underwater multiphase flowmeter based on Ba133 |
| CN108535457A (en) * | 2018-06-12 | 2018-09-14 | 南京玖茂自动化控制***有限公司 | A kind of aqueous quantitative analysis system of sump oil peculiar to vessel |
-
2009
- 2009-06-27 CN CN2009201439148U patent/CN201503284U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135484A (en) * | 2010-12-16 | 2011-07-27 | 西南石油大学 | Device and method for testing gas-water ratio of underground sample with water gas reservoir and water soluble gas reservoir |
| CN102435245A (en) * | 2012-01-06 | 2012-05-02 | 兰州海默科技股份有限公司 | Steam flow measuring device and method |
| WO2013102312A1 (en) * | 2012-01-06 | 2013-07-11 | 兰州海默科技股份有限公司 | Steam flow metering device and metering method therefor |
| CN102435245B (en) * | 2012-01-06 | 2014-01-15 | 兰州海默科技股份有限公司 | Steam flow measuring device and method |
| CN103808378A (en) * | 2012-11-14 | 2014-05-21 | 克洛纳有限公司 | Nuclear magnetic flow meter and method for operation of nuclear magnetic flow meters |
| CN103697950A (en) * | 2013-08-29 | 2014-04-02 | 兰州海默科技股份有限公司 | Method and device for measuring flow of oil, gas and water in non-conventional natural gas on line |
| CN103697950B (en) * | 2013-08-29 | 2017-01-11 | 兰州海默科技股份有限公司 | Method and device for measuring flow of oil, gas and water in non-conventional natural gas on line |
| CN104596591A (en) * | 2015-01-16 | 2015-05-06 | 丹东丹联仪表检测技术研究有限公司 | Three-phase fluid detector and detection method for respective flows of three-phase fluid |
| CN106706047A (en) * | 2017-01-10 | 2017-05-24 | 海默科技（集团）股份有限公司 | Underwater multiphase flowmeter based on Ba133 |
| CN108535457A (en) * | 2018-06-12 | 2018-09-14 | 南京玖茂自动化控制***有限公司 | A kind of aqueous quantitative analysis system of sump oil peculiar to vessel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100609 |
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| CX01 | Expiry of patent term |