CN201242533Y - Electric impedance type crude oil water-containing analyzer - Google Patents
Electric impedance type crude oil water-containing analyzer Download PDFInfo
- Publication number
- CN201242533Y CN201242533Y CNU2008200386948U CN200820038694U CN201242533Y CN 201242533 Y CN201242533 Y CN 201242533Y CN U2008200386948 U CNU2008200386948 U CN U2008200386948U CN 200820038694 U CN200820038694 U CN 200820038694U CN 201242533 Y CN201242533 Y CN 201242533Y
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- oil
- impedance type
- impedance
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000010779 crude oil Substances 0.000 title abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 14
- 230000005284 excitation Effects 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Abstract
The utility model relates to an impedance type crude oil water-content analyzer, which belongs to the crude oil detection analyzer technical field. The analyzer comprises a secondary meter fixed outside an oil pipeline; a measuring and controlling circuit is arranged in the secondary meter, a ring-surface excitation electrode couple is fixedly arranged in the oil pipeline, a measuring electrode couple is fixedly arranged in the oil pipeline between the two electrodes of the excitation electrode couple, the excitation signal output end of the measuring circuit is connected with the excitation electrode couple, and the signal output end of the measuring electrode couple is connected with the sampling access end of the measuring and controlling circuit. When in use, the impulse current can be output from the excitation signal output end of the impedance type analyzer to the excitation electrode couple; simultaneously, the measuring electrode couple is excited to generate voltage signals, the voltage signals are proportional to the impedance of oil-water medium flowing through the oil pipeline, the impedance of the oil-water medium directly depends on the water ratio thereof; thereby, the measuring circuit can easily obtain the accurate water ratio of the crude oil according to the impedance of the oil-water medium. The impedance type crude oil water-content analyzer has the advantages that not only the measurement is accurate, but also the structure is simple, and the installation is convenient.
Description
Technical field
The utility model relates to a kind of analyzer of water content, and especially a kind of impedance type water in oil analyzer belongs to crude oil check and analysis Instrument technology field.
Background technology
The crude oil water content measurement is an important link of petroleum metering.Oilfield exploitation enters secondary, tertiary oil recovery after date, because the water percentage of extraction crude oil is very high, thereby makes the quantum of output of the pure crude oil of accurate judgement and operational throughput become difficult.The moisture content meter measuring appratus that uses mainly contains vibrating densimeter, radioactivity analyzer of water content and condenser type water-containing machine at present.Though vibrating densimeter measuring accuracy height is subjected to the influence of factors such as fouling, liquid gassiness easily; Radioactivity analyzer of water content cost height and existence are to the hidden danger of human body radiation; To contain water gaging comparatively effective to low for the condenser type water-containing machine, but it is powerless that height is contained water gaging.
Retrieval is found, application number is that 94105466.7 Chinese patent application discloses a kind of high precision instrument for testing water content of crude oil by impedance method, tester wherein includes water content of crude oil by impedance method, all circles' face sensor and measuring instrument, fiber optic temperature and sensor, computing machine, in sensor, imbed a needle-like fibre optic temperature sensor, one diameter is less than the optical fiber flow sensor of 4mm, with impedance method institute's measured value and fiber optic temperature, the value that flow sensor is measured all is converted to frequency signal and transports to computing machine, by the function curve computing formula of solidifying in it impedance method institute measured value is carried out temperature by computing machine, the real-time correction and the demonstration of flow velocity.This tester has advantages such as the temperature of not being subjected to, flow rate effect, but structure and anufacturability are all comparatively complicated.
The utility model content
The purpose of this utility model is: the shortcoming at above prior art exists proposes a kind of not only measuring accuracy height but also structure impedance type water in oil analyzer simple and direct, easy for installation.
In order to reach above purpose, impedance type water in oil analyzer of the present utility model comprises the secondary table that is fixed on outside the pipeline road, settle telemetry circuit in the described secondary table, fixed installation anchor ring exciting electrode is right in the described pipeline road, the fixed installation potential electrode is right in the pipeline road between right two electrodes of described exciting electrode, the described exciting electrode of pumping signal output termination of described telemetry circuit is right, and the signal output part that described potential electrode is right connects the sampling discrepancy end of telemetry circuit.
During work, the pumping signal output terminal of this impedance type water in oil analyzer to exciting electrode to output pulse current, this moment, potential electrode was to being energized the generation output voltage signal, this signal is directly proportional with oil-water media impedance by pipeline road, and water percentage is wherein directly depended in the oil-water media impedance, so metering circuit is easy to accurately draw in view of the above crude oil water content.Its obvious advantage is not only to measure accurately, and structure is simple and direct, and is easy for installation.
The utility model further improves, described exciting electrode to potential electrode to making by titanium alloy material, therefore can effectively eliminate the fouling of crude oil in measuring channel, avoided loaded down with trivial details electrode washing, bring more convenience to use.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the two-way controllable amplitude pulse current source circuit theory diagrams of telemetry circuit among Fig. 1 embodiment.
Embodiment
Embodiment one
The impedance type water in oil analyzer of present embodiment as shown in Figure 1, mainly by flange 1, explosion-proof pipeline road main body 2, lining 3, secondary table 4, install fastening screw nut 5, contact conductor 6, temperature sensor 7, secondary table bearing 8, anchor ring exciting electrode to 9 and 12, the anchor ring potential electrode to 10 and 11, mixer flange 13, mixer apparatus 14, mixer sampling head 15 constitute.The inside surface of explosion-proof pipeline road main body 2 is lined with lining 3, and fixing fixed installation anchor ring exciting electrode is to 9,12, and the fixed installation potential electrode is to 10,11 in the pipeline road between right two electrodes 9,12 of this exciting electrode.
The fixed outside secondary table bearing 8 of explosion-proof pipeline road main body 2, and be connected with secondary table 4 by fastening screw nut 5 is installed.Settle telemetry circuit in the secondary table 4.Telemetry circuit comprises driving source circuit, signal conditioning circuit, single chip machine controlling circuit and data communication circuit etc.Wherein the driving source circuit theory as shown in Figure 2, be two-way controllable pulse current excitation source circuit, the current signal output end A of this circuit, B are connected to the anchor ring exciting electrode on 9,12, for the anchor ring exciting electrode to 9, the 12 bidirectional pulse current excitation sources that amplitude stabilization is provided.Two pumping signal output terminals of driving source circuit connect exciting electrode 9,12 respectively in the telemetry circuit, and the signal output part of potential electrode 10,11 connects the sampling discrepancy end of telemetry circuit respectively.In addition, telemetry circuit also contains temperature sensor, and as shown in Figure 1, this temperature sensor 7 is installed in the explosion-proof pipeline road main body 2 through after the explosion-proof processing.
In the on-line measurement water percentage process, when Water-In-Oil occurring, then water is discrete phase, and this moment, deviation appearred in measurement result.In order to allow the water be external phase, be connected with mixer apparatus 14 in the lower end of explosion-proof pipeline road main body 2 by flange, its effect is that Jiang Youbao opens, thereby makes water become external phase, guarantees measuring reliability and accuracy.
Experiment shows that present embodiment has the following advantages:
1), exciting electrode to and potential electrode to being the titanium material, effectively eliminated the fouling of crude oil in measuring channel, avoided loaded down with trivial details electrode washing, brought convenience to use.
2), adopt the driving source of two-way controllable amplitude pulse current source as system, overcome the electric polarization problem of bringing when adopting direct current signal, thereby guaranteed the measurement reliably and with long-term of this sensor as the system incentive source.In addition, different oil producing regions injects the salinity difference of water, so the impedance that is showed is also different, and pulse current source amplitude of the present utility model is controlled, thereby the measurement occasion that is suitable for has more popularity.
3), because the temperature of profit mixed phase has bigger influence to the impedance of sensor, so the correct measurement of temperature compensation is most important.This water in oil analyzer adopts the digital temperature sensor that response speed is fast, precision is high, accurately measures profit in real time and mixes the phase temperature, and then realize temperature compensation.
4), from the signals collecting to the data presentation, man-machine interface, data communication, all embody intelligent.This instrument can show instantaneous water percentage, accumulation water percentage, profit temperature automatically, and allow user's online modification temperature coefficient, water percentage coefficient, and can become 0-20mA or 4-20mA current signal to data, and the full sized pules the signal is far passed, and have 485 communications, Hart protocol communication function.
In addition to the implementation, the utility model can also have other embodiments.For example, can also contain pressure and flow velocity compensation system.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (6)
1. impedance type water in oil analyzer, comprise and be fixed on the outer secondary table of pipeline road, settle telemetry circuit in the described secondary table, it is characterized in that: fixed installation anchor ring exciting electrode is right in the described pipeline road, the fixed installation potential electrode is right in the pipeline road between right two electrodes of described exciting electrode, the described exciting electrode of pumping signal output termination of described telemetry circuit is right, and the signal output part that described potential electrode is right connects the sampling discrepancy end of telemetry circuit.
2. impedance type water in oil analyzer according to claim 1 is characterized in that: described exciting electrode to potential electrode to making by titanium alloy material.
3. impedance type water in oil analyzer according to claim 2 is characterized in that: the fixed outside secondary table bearing of described pipeline road is connected by fastening screw nut and secondary table are installed.
4. impedance type water in oil analyzer according to claim 3 is characterized in that: described telemetry circuit contains temperature sensor, and described temperature sensor is installed in the explosion-proof pipeline road main body.
5. impedance type water in oil analyzer according to claim 4 is characterized in that: the lower end of described pipeline road is connected with mixer apparatus.
6. impedance type water in oil analyzer according to claim 5 is characterized in that: also contain pressure and flow velocity compensation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200386948U CN201242533Y (en) | 2008-08-18 | 2008-08-18 | Electric impedance type crude oil water-containing analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200386948U CN201242533Y (en) | 2008-08-18 | 2008-08-18 | Electric impedance type crude oil water-containing analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN201242533Y true CN201242533Y (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200386948U Expired - Lifetime CN201242533Y (en) | 2008-08-18 | 2008-08-18 | Electric impedance type crude oil water-containing analyzer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162805A (en) * | 2010-06-25 | 2011-08-24 | 张英梅 | Method and device for detecting existence of liquid capable of being electrolyzed and concentration of liquid |
| CN103713021A (en) * | 2014-01-06 | 2014-04-09 | 长春汽车工业高等专科学校 | Detecting method and device with impedance type water content sensor |
| CN104995503A (en) * | 2013-02-12 | 2015-10-21 | 株式会社堀场先进技术 | Resistivity-measuring circuit, cell for measuring liquid sample, resistivity-measuring apparatus, liquid sample control method and liquid sample control system |
| CN109187649A (en) * | 2018-08-14 | 2019-01-11 | 天津大学 | Moisture content and salinity measuring device based on the anti-sensor of plug-in resistance type |
| CN109307689A (en) * | 2018-08-27 | 2019-02-05 | 中国石油大学(北京) | Petroleum detection device |
| RU221908U1 (en) * | 2023-09-12 | 2023-11-29 | Общество С Ограниченной Ответственностью "Научно-Производственное Предприятие "Томьаналит" | Conductometric sensor |
| CN117630109A (en) * | 2022-08-17 | 2024-03-01 | 中国石油天然气集团有限公司 | Method for measuring moisture content of oil-based mud |
-
2008
- 2008-08-18 CN CNU2008200386948U patent/CN201242533Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162805A (en) * | 2010-06-25 | 2011-08-24 | 张英梅 | Method and device for detecting existence of liquid capable of being electrolyzed and concentration of liquid |
| CN104995503A (en) * | 2013-02-12 | 2015-10-21 | 株式会社堀场先进技术 | Resistivity-measuring circuit, cell for measuring liquid sample, resistivity-measuring apparatus, liquid sample control method and liquid sample control system |
| US10082477B2 (en) | 2013-02-12 | 2018-09-25 | Horiba Advanced Techno, Co., Ltd. | Resistivity-measuring circuit, cell for measuring liquid sample, resistivity-measuring apparatus, liquid sample control method, and liquid sample control system |
| CN103713021A (en) * | 2014-01-06 | 2014-04-09 | 长春汽车工业高等专科学校 | Detecting method and device with impedance type water content sensor |
| CN103713021B (en) * | 2014-01-06 | 2016-02-03 | 长春汽车工业高等专科学校 | Impedance type moisture sensor detection method and pick-up unit |
| CN109187649A (en) * | 2018-08-14 | 2019-01-11 | 天津大学 | Moisture content and salinity measuring device based on the anti-sensor of plug-in resistance type |
| CN109187649B (en) * | 2018-08-14 | 2020-11-27 | 天津大学 | Water content and salinity measurement device based on plug-in electrical impedance sensor |
| CN109307689A (en) * | 2018-08-27 | 2019-02-05 | 中国石油大学(北京) | Petroleum detection device |
| CN117630109A (en) * | 2022-08-17 | 2024-03-01 | 中国石油天然气集团有限公司 | Method for measuring moisture content of oil-based mud |
| RU221908U1 (en) * | 2023-09-12 | 2023-11-29 | Общество С Ограниченной Ответственностью "Научно-Производственное Предприятие "Томьаналит" | Conductometric sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |