CN202039844U - Device for automatic and continuous monitoring and metering of oil well water content - Google Patents
Device for automatic and continuous monitoring and metering of oil well water content Download PDFInfo
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- CN202039844U CN202039844U CN2011200637524U CN201120063752U CN202039844U CN 202039844 U CN202039844 U CN 202039844U CN 2011200637524 U CN2011200637524 U CN 2011200637524U CN 201120063752 U CN201120063752 U CN 201120063752U CN 202039844 U CN202039844 U CN 202039844U
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Abstract
The utility model discloses a device for automatic and continuous monitoring and metering of oil well water content. The device comprises a transmitter having a super dew and a junction hole, and a bar-shaped measuring sensor head having a magnetic bar. The transmitter is provided with an LCD display screen connected with the super dew by cooperation. The super dew transmits the sensed and measured data to the LCD display screen for displaying. The transmitter provided with a setting button for controlling the work of the magnetic bar is disposed at the top end of a connection rod. The bar-shaped measuring sensor head is disposed at the bottom of the connection rod. The middle portion of the connection rod is fixedly provided with a flange disc vertical to the connection rod. The bar-shaped measuring sensor head is disposed in a hollow tube-shaped body arranged at the bottom of the connection rod through cooperation, and bar-shaped holes are evenly disposed on the wall of the hollow tube-shaped body, enabling the bar-shaped measuring sensor head to expose outwardly. The device has high monitoring precision and greatly improves the monitoring reliability.
Description
Technical field
The utility model relates to the moisture check and analysis instrument, particularly well water automatic continuous monitoring metering device that water content detects in the industrial crude oil.
Background technology
The development of on-line measurement multiphase flow both at home and abroad is morning relatively, and has proposed multiple solution.Ray method, electric method, nuclear-magnetism field resonance method, microwave method etc. are specifically arranged.
Ray method:, measure the important means that multiphase flow contains rate based on the principle of radiation absorption or scattering.The advantage of ray method is very remarkable in theory, it can handle the situation of any oil-water ratio, and be the non-cpntact measurement mode, be adapted at working under various adverse circumstances and the condition, but need to use the radioactive source of high harm, management is strict, uses inconvenience, simultaneously show that according to part oil field mode of occupation error is bigger, can not be suitable for the moisture measurement of 0-100%.
Electric method: be one of important method of measuring phase content,, determine average phase content by measuring each distribution and electrical impedance relation mutually.Capacitance method be by measurement flow through the oil of electric capacity two interpolars, the average dielectric constant of water mixed liquid is measured moisture content.In commercial Application, the sensor probe electric capacitance change that is installed in the oil pipeline is very little, generally tens to hundreds of pico farad scope.Therefore, capacitance measurement circuit requires to have the resolution ratio of 0.1PF, and requires to have good zero point and long-term job stability.Shortcoming is the interference that is subjected to parasitic capacitance easily.
The basic principle that electrical impedance method is measured phase fraction is: when Oil, Water, Gas three-phase mixed flow is arranged between two electrodes, record interelectrode electrical impedance Z.Pass the resistance R of multiphase flow pipeline and capacitivity and the electrical conductivity that capacitor C depends on the Oil, Water, Gas mixture, void fraction, moisture content and flow pattern etc.The resistance that records between two electrodes depends on R, C again, the driving frequency of electrode and the geometric properties of sensor, and material etc., under the situation that the sensor geometric shape is determined and flow pattern is given, measured value is the direct function that fluid is formed phase fraction.This measuring principle and method are influenced by flow regime, measure less stable.
Nuclear magnetic resonance method: nuclear magnetic resonance is exactly that the atomic nucleus system that is in the material in certain magnetostatic field electromagnetic wave that is subjected to corresponding frequencies is done the time spent, the resonant transition phenomenon that takes place between their magnetic energy level.Lynch etc. utilize nuclear magnetic resonance principle, absorb by the nuclear magnetic resonance of measuring the multiphase flow liquid phase part, come the phase content of measuring system, this principle and method more complicated, and the expense costliness does not also enter industrial applications at present.
Microwave method: under microwave frequency, can realize by the phase shift that fluid produces by variation and the measurement microwave signal of measuring the fluid-mixing dielectricity.Pass the phase shift of oil, gas, water three-phase fluid-mixing microwave signal and the microwave signal of can thinking approx of decay and pass through the profit phase shift mutually and the function of pad value, can solve the thickness of water and oil phase by solving an equation, and then calculate the phase content of water, oil phase.Microwave method is insensitive to crude oil temperature and saliferous, and measurement category is wide; Can measure the state of oil or water, not be subjected to the influence of factors such as speed, temperature, density.There is document to be presented under the microwave frequency, can realizes that by the phase shift that fluid produces the phase place of microwave signal and the change of amplitude can be used to determine moisture content by variation and the measurement microwave signal of measuring the fluid-mixing dielectricity.
But its structure of detector that detects water content in crude oil by said method is perfect inadequately, has accuracy of detection problem on the low side or inaccurate, insecure.
The utility model content
The purpose of this utility model is to provide a kind of well water automatic continuous monitoring metering device, and the accuracy of detection height improves the reliability of detection greatly.
The purpose of this utility model is achieved in that a kind of well water automatic continuous monitoring metering device, comprise transmitter with secondary table and wiring hole and bar-shaped measurement inductive probe with bar magnet, the LCD display that is connected with the secondary table is being set on the transmitter, above-mentioned secondary table will be responded to the data of surveying and be sent to LCD display to show, the setting button of controlling bar magnet work is being set on the transmitter, transmitter is installed in the connecting rod top, bar-shaped measurement inductive probe is installed in the connecting rod bottom, installing the flange vertical at the middle part of connecting rod with connecting rod, described bar-shaped measurement inductive probe cooperates in the hollow tubular body that is installed in the setting of connecting rod bottom, and the uniform cylindrical void that is being provided with on the tube wall of hollow tubular body, so that bar-shaped measurement inductive probe exposes outside.
The utility model is groped and is proved through indoor a large amount of experiment, determined preferably to be subjected to that external environmental interference is little, accuracy of measurement is high, the specific microwave frequency and the power of good stability, cause the principle of signal amplitude attenuation change to measure according to the different microwave penetration differences of media water-bearing (oil) rate, and through indoor a large amount of experiment and simulation, grope to derive the different water cut variation and pass through the profit function changing relation of pad value mutually, realize the real-time measurement of moisture variation with microwave signal.
By the measuring principle of researching and analysing existing various moisture detectors and the various factors that influences certainty of measurement, the utility model finally determines to adopt the above-mentioned technical scheme that realizes its technical purpose, utilize the method for microwave measurement principle to measure moisture, the measurement inductive probe is exposed, can be in cylindrical void enters the hollow tubular body of connecting rod bottom setting when making the fluid overcurrent, there is the sufficient time to contact with the bar-shaped measurement inductive probe of its waterproof, thereby improves its accuracy of detection and reliability.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
A kind of well water automatic continuous monitoring metering device, as shown in drawings, comprise transmitter 2 with secondary table and wiring hole 1 and bar-shaped measurement inductive probe 8 with bar magnet, the LCD display 3 that is connected with the secondary table is being set on the transmitter 2, above-mentioned secondary table will be responded to the data of surveying and be sent to LCD display 3 to show, the setting button 4 of controlling bar magnet work is being set on the transmitter 2, transmitter 2 is installed in connecting rod 6 tops, bar-shaped measurement inductive probe 8 is installed in connecting rod 6 bottoms, installing the flange 5 vertical with connecting rod 6 at the middle part of connecting rod 6, described bar-shaped measurement inductive probe 8 cooperates in the hollow tubular body that is installed in the setting of connecting rod 6 bottoms, and uniform on the tube wall of hollow tubular body cylindrical void 7 is being set, so that bar-shaped measurement inductive probe 8 exposes outside.The quantity of described cylindrical void 7 be two or more at least (be two cylindrical voids 7 in the accompanying drawing, one of them is at the back side of its schematic diagram, the expression of not drawing), its size should be consistent, cylindrical void 7 should be along the axial setting of connecting rod 6.
The utility model systematic parameter is as follows:
Measurement of water ratio scope: 0%～100%;
Real-time measuring precision of water content in water: ± 0.02%≤1% moisture content;
± 0.1%≤10% moisture content;
± 0.5%≤30% moisture content;
± 1.0%≤70% moisture content;
± 2.0%≤100% moisture content;
Weighted average moisture content precision: ± 1.0%;
Output current: 4～20mA;
Output current precision: ± 0.1%;
Temperature survey: ± 0.5 ℃;
Level gauging precision: 0.1%;
Electric current: 4～20mA;
Measuring media: wet crude;
Medium temperature: 0～90 ℃;
Environment temperature :-40～70 ℃;
Pressure limit: 0～4.0MPa;
Explosive-proof grade: Exd II BT4;
Explosion-proof card number: CNEx05.1371X;
Degree of protection: IP65;
LCD shows size: 112 * 64 dot.
Claims (1)
1. well water automatic continuous monitoring metering device, comprise transmitter (2) with secondary table and wiring hole (1) and bar-shaped measurement inductive probe (8) with bar magnet, the LCD display (3) that is connected with the secondary table is being set on the transmitter (2), above-mentioned secondary table will be responded to the data of surveying and be sent to LCD display (3) to show, the setting button (4) of controlling bar magnet work is being set on the transmitter (2), transmitter (2) is installed in connecting rod (6) top, bar-shaped measurement inductive probe (8) is installed in connecting rod (6) bottom, installing the flange (5) vertical with connecting rod (6) at the middle part of connecting rod (6), it is characterized in that: described bar-shaped measurement inductive probe (8) cooperates in the hollow tubular body that is installed in the setting of connecting rod (6) bottom, and uniform on the tube wall of hollow tubular body cylindrical void (7) is being set, so that bar-shaped measurement inductive probe (8) exposes outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200637524U CN202039844U (en) | 2011-03-13 | 2011-03-13 | Device for automatic and continuous monitoring and metering of oil well water content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200637524U CN202039844U (en) | 2011-03-13 | 2011-03-13 | Device for automatic and continuous monitoring and metering of oil well water content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202039844U true CN202039844U (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200637524U Expired - Fee Related CN202039844U (en) | 2011-03-13 | 2011-03-13 | Device for automatic and continuous monitoring and metering of oil well water content |
Country Status (1)
| Country | Link |
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| CN (1) | CN202039844U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833792A (en) * | 2014-10-31 | 2015-08-12 | 锦州锦研科技有限责任公司 | Water content analytic instrument annular probe and mounting structure thereof |
| RU2585255C2 (en) * | 2013-05-22 | 2016-05-27 | Олег Креонидович Сизиков | Moisture meter-dielcometer (versions) |
| CN106053491A (en) * | 2016-07-15 | 2016-10-26 | 西安石油大学 | High-water-content crude oil flowmeter |
| CN106093353A (en) * | 2016-05-27 | 2016-11-09 | 国网浙江省电力公司宁波供电公司 | A kind of feeler lever |
| CN110118808A (en) * | 2019-06-15 | 2019-08-13 | 广饶大金科技有限公司 | A kind of online water in oil analyzer |
-
2011
- 2011-03-13 CN CN2011200637524U patent/CN202039844U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2585255C2 (en) * | 2013-05-22 | 2016-05-27 | Олег Креонидович Сизиков | Moisture meter-dielcometer (versions) |
| CN104833792A (en) * | 2014-10-31 | 2015-08-12 | 锦州锦研科技有限责任公司 | Water content analytic instrument annular probe and mounting structure thereof |
| CN106093353A (en) * | 2016-05-27 | 2016-11-09 | 国网浙江省电力公司宁波供电公司 | A kind of feeler lever |
| CN106053491A (en) * | 2016-07-15 | 2016-10-26 | 西安石油大学 | High-water-content crude oil flowmeter |
| CN110118808A (en) * | 2019-06-15 | 2019-08-13 | 广饶大金科技有限公司 | A kind of online water in oil analyzer |
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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: 20111116 Termination date: 20150313 |
|
| EXPY | Termination of patent right or utility model |