CN204374134U - Crude oil pipeline water content analyzer - Google Patents
Crude oil pipeline water content analyzer Download PDFInfo
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- CN204374134U CN204374134U CN201420807401.3U CN201420807401U CN204374134U CN 204374134 U CN204374134 U CN 204374134U CN 201420807401 U CN201420807401 U CN 201420807401U CN 204374134 U CN204374134 U CN 204374134U
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- crude oil
- water content
- pipeline
- oil
- sampling
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003921 oil Substances 0.000 claims abstract description 47
- 238000005070 sampling Methods 0.000 claims abstract description 47
- 238000000605 extraction Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 2
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- 239000000523 sample Substances 0.000 description 20
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a crude oil pipeline water content analyzer. Crude oil pipeline water content analyzer, including: the sampling unit comprises an oil pumping device and a sampling pipeline connected between the oil pumping device and a crude oil pipeline; the composite sensor comprises a radio frequency capacitance sensor, and the radio frequency capacitance sensor is arranged on the sampling pipeline. Use the technical scheme of the utility model, utilize the sampling unit to extract crude oil in crude oil pipeline, utilize radio frequency capacitance sensor to detect the crude oil of extraction, because the state of the crude oil of extraction is more stable than the crude oil in the crude oil pipeline, is favorable to utilizing radio frequency capacitance sensor to detect crude oil.
Description
Technical field
The utility model relates to crude assay apparatus field, in particular to a kind of crude oil pipeline analyzer of water content.
Background technology
In recent years, along with the continuous progress of various metering method, analytical technology and computation model, an important field of research is become to the digital measuring of oil field harvest efficiency.Particularly for the oil well adopting thermal recovery technology, if accurate phase-splitting on-line metering can be carried out to production fluid, just data promptly can be fed back to the steam injection system of upstream, match to relevant down-hole thermometric pressure measuring system and boiler export mass dryness fraction metering system, reasonably regulate the injection parameter of Boiler Steam, make between the injection and extraction system in oil field, to construct a whole set of digitized network, under minimum boiler fuel consumption level, obtain the most rational crude oil recovery ratio, the design in this " digitizing oil field " of namely always laying siege to both at home and abroad.If this design can be achieved, significantly will reduce the energy resource consumption required for thermal recovery, significantly reduce the carbon emission of steam generator system to atmospheric environment, energy-saving and emission-reduction, have significant economic benefit and social benefit.
But at present in worldwide, remaining a technology of not capturing completely to the online phase-splitting metering of production fluid, is also one of the difficult problem in multiphase flow metering field always.Its main cause has two, first viscous crude density at relatively high temperatures and water very close, its viscosity is larger again, is difficult to realize being separated rapidly with water, adopts that common sensor is very difficult to be differentiated the two.It two is under high-temperature and high-pressure conditions, and the rock gas in crude oil can partly be added in production fluid, does not exist merely, can cause very large error in dipping with the gas phase state be separated.
At present, once multiple measuring technique was attempted to measure the polyphasic flow of this complexity both at home and abroad, from traditional densimetry, optical observation method, inductance, capacitance method, to some modern measure methods as radiant rays technology, laser doppler technique, nuclear magnetic resonance technique, ultrasonic technique, microwave technology, optical fiber technology, pulsed neutron active tracer technique, flow process imaging technique etc., but still all do not realize large-scale production application.Its reason mainly contact sensor is easy to by crude oil pollution, and serviceable life is limited.Non-contact sensor then usually requires harsher working environment, and cost is also usually higher, therefore, makes it apply and is restricted.
Crude oil output still mainly adopts common single-phase or two-phase flow measurement method both at home and abroad at present, such as, uses glass tube level gauge gauging, electrode strapping, tipping bucket strapping and meterage in weighting method etc.Wherein meterage in weighting method applies more new method in recent years, although can eliminate the error that gassiness and raffinate cause, working stability, function of measuring is single, can only measure the total production of production fluid, cannot point Phase Proportion of Direct Analysis profit.To Oilfield Natural Gas Plant metering method abacus gas measuring method, separation vessel discharge opeing gas measuring method and gas meter gas measuring method.Applying more in practice is precession spiral flowmeter.But these methods only could be measured accurately after being separated completely with liquid by gas, larger at measurement time error with pressure.
Utility model content
Fundamental purpose of the present utility model be to provide a kind of can the crude oil pipeline analyzer of water content of water cut of on-line measurement viscous crude.
To achieve these goals, according to an aspect of the present utility model, provide a kind of crude oil pipeline analyzer of water content, comprising: sampling unit, comprise oil rig and be connected to the sample lines between oil rig and crude oil pipeline; Compound sensor, comprises Radiofrequency Capacitive Sensor, and Radiofrequency Capacitive Sensor is arranged in sample lines.
Further, compound sensor also comprises the temperature sensor of the temperature of the crude oil for detecting sampling unit extraction.
Further, be serially connected with valve member in sample lines, sampling unit also comprises the setting-out pipeline be connected with sample lines, and the import of setting-out pipeline is connected between valve member and oil rig, is serially connected with setting-out valve in setting-out pipeline.
Further, sampling unit also comprises: for the cooling end for the Crude Oil Lower-Temp in oil rig.
Further, cooling end comprises cooling air duct, and the air outlet of cooling air duct is towards oil rig.
Further, also comprise controller, setting-out valve is connected with controller, and setting-out valve is connected with controller, and sampling unit also comprises: tensimeter, and for measuring the pressure of the crude oil in oil rig, tensimeter is connected with controller; And/or thermometer, for measuring the temperature of the crude oil in oil rig, thermometer is connected with controller.
Further, valve member comprises: sampling manually-operated gate, is serially connected in sample lines; And/or sampling electromagnetic valve, is serially connected in sample lines, sampling electromagnetic valve is connected with controller.
Further, oil rig comprises: sampling oil cylinder, is connected with sample lines; Piston, is arranged in sampling oil cylinder movably.
Further, also comprise controller, oil rig also comprise be connected with piston for driven plunger at the drive division sampling movement in oil cylinder, the motor that drive division comprises handwheel and/or is connected with controller.
Application the technical solution of the utility model, utilize sampling unit extraction crude oil in crude oil pipeline, the crude oil of Radiofrequency Capacitive Sensor to extraction is utilized to detect, because the state of the crude oil of extraction is than the stabilization of crude oil in crude oil pipeline, be conducive to utilizing Radiofrequency Capacitive Sensor to detect crude oil.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment according to crude oil pipeline analyzer of water content of the present utility model;
Fig. 2 shows the structural representation of the control panel according to crude oil pipeline analyzer of water content of the present utility model;
Fig. 3 shows the schematic diagram according to the utility model Radiofrequency Capacitive Sensor.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
11, oil rig; 12, sample lines; 13, tensimeter; 14, thermometer; 15, air duct is cooled; 16, manually-operated gate is sampled; 17, electromagnetic valve is sampled; 18, setting-out pipeline; 19, setting-out valve; 111, oil cylinder is sampled; 112, piston; 113, motor; 114, handwheel; 2, crude oil pipeline; 3, setting-out container; 4, automatic sampling pilot lamp; 5, manually pilot lamp is sampled; 6, manual sample button; 7, control panel; 8, automatic sampling button; 9, switch.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 1, the crude oil pipeline analyzer of water content of the present embodiment, comprising: sampling unit, comprises oil rig 11 and is connected to the sample lines 12 between oil rig 11 and crude oil pipeline 2; Compound sensor, comprises Radiofrequency Capacitive Sensor, and Radiofrequency Capacitive Sensor is arranged in sample lines 12.
Utilize sampling unit extraction crude oil in crude oil pipeline, utilize the crude oil of Radiofrequency Capacitive Sensor to extraction to detect, because the state of the crude oil of extraction is than the stabilization of crude oil in crude oil pipeline, be conducive to utilizing Radiofrequency Capacitive Sensor to detect crude oil.Utilize Radiofrequency Capacitive Sensor to detect crude oil, eliminate the density of the viscous crude of high temperature and the close adverse effect of water, improve the accuracy of detection.
Crude oil pipeline bearing analysis method comprises: the crude oil that extraction is to be detected in crude oil pipeline; Radiofrequency Capacitive Sensor is utilized to measure the water cut of crude oil stream Crude Oil to be detected.
Preferably, compound sensor also comprises the temperature sensor of the temperature of the crude oil for detecting sampling unit extraction.
Preferably, be serially connected with valve member in sample lines 12, sampling unit also comprises the setting-out pipeline 18 be connected with sample lines 12, and the import of setting-out pipeline 18 is connected between valve member and oil rig 11, is serially connected with setting-out valve 19 in setting-out pipeline 18.Setting-out pipeline 18 is for exporting the crude oil of oil rig 11 extraction, setting-out container 3 is set below the outlet of setting-out pipeline 18, after the crude oil exported by setting-out pipeline 18 is detected, the detection architecture of testing result and Radiofrequency Capacitive Sensor is contrasted, thus complete the check and correction of radio frequency capacitive transducer, be conducive to the accuracy of the detection architecture ensureing Radiofrequency Capacitive Sensor.
Preferably, sampling unit also comprises: for the cooling end for the Crude Oil Lower-Temp in oil rig 11.Cooling end comprises cooling air duct 15, and the air outlet of cooling air duct 15 is towards oil rig 11.
After the crude oil extracted out oil rig 11 cools, export setting-out container 3 to by setting-out pipeline 18, be conducive to avoiding the crude oil of high temperature to splash and hurt sb.'s feelings, be conducive to the labour intensity improving operating personnel.
Preferably, crude oil pipeline analyzer of water content also comprises controller, and setting-out valve 19 is connected with controller, and setting-out valve 19 is connected with controller, and sampling unit also comprises tensimeter 13 and thermometer 14.Tensimeter 13 is for measuring the pressure of the crude oil in oil rig 11, and tensimeter 13 is connected with controller.Thermometer 14 is for measuring the temperature of the crude oil in oil rig 11, and thermometer 14 is connected with controller.
Be connected with the first analog-to-digital conversion module between tensimeter 13 and controller, the first analog-to-digital conversion module feeds back to controller after the simulating signal of tensimeter 13 is converted to digital signal.
Be connected with the second analog-to-digital conversion module between thermometer 14 and controller, the second analog-to-digital conversion module feeds back to controller after the simulating signal of thermometer 14 is converted to digital signal.
Controller only tensimeter 13 feed back pressure information and thermometer 14 feed back temperature information all composite demand time, just control setting-out valve 19 to open to export crude oil, be conducive to avoiding the crude oil of High Temperature High Pressure to splash and injure operating personnel, improve the security of crude oil pipeline analyzer of water content.
When utilizing Radiofrequency Capacitive Sensor to detect the water cut of crude oil, close setting-out valve 19, open valve member, and extract the crude oil in crude oil pipeline 2 with oil rig 11, crude stream is when Radiofrequency Capacitive Sensor, and Radiofrequency Capacitive Sensor detects the water cut of crude oil.
When exporting crude oil in setting-out container 3, after temperature and pressure all meets the requirements, valve-off assembly, opens setting-out valve 19.
Preferably, valve member comprises: sampling manually-operated gate 16, is serially connected in sample lines 12; Sampling electromagnetic valve 17, is serially connected in sample lines 12, and sampling electromagnetic valve 17 is connected with controller.
The crude oil pipeline analyzer of water content of the present embodiment, has manual operation mode and automatic control mode, in the manual operating mode, thinks that operation samples manually-operated gate 16 complete operation.
Preferably, oil rig 11 comprises: sampling oil cylinder 111, is connected with sample lines 12; Piston 112, is arranged in sampling oil cylinder 111 movably.Can be adjusted the pressure of the crude oil in sampling oil cylinder 111 by the position adjusting piston 112, the crude oil being conducive to avoiding being exported by setting-out pipeline 18 splashes and injures operating personnel.
In the present embodiment, the crude oil of extraction is lowered the temperature and samples after step-down.
Preferably, oil rig 11 also comprise be connected with piston 112 for driven plunger 112 at the drive division sampling movement in oil cylinder 111, the motor 113 that drive division comprises handwheel 114 and/or is connected with controller.
Sampling unit also comprises the left travel switch of the position for detecting piston 112, right travel switch and scrambler.Left travel switch, right travel switch are all connected with controller with scrambler.Controller judges the position of piston 112 according to the information of left travel switch, right travel switch and encoder feedback.
In the manual operating mode, moved by operated by handwheel driven plunger 112, completed and extracted crude oil to be detected at crude oil pipeline 2.Under automatic control mode, controller controls motor 113, setting-out valve 19 and sampling electromagnetic valve 17.
Fig. 2 shows the structural representation of the control panel 7 according to crude oil pipeline analyzer of water content of the present utility model.Control panel 7 is provided with manual operation mode/automatic control mode switch 9, automatic sampling pilot lamp 4, manually sampling pilot lamp 5, automatic sampling button 8 and manual sample button 6.
Fig. 3 shows the schematic diagram of Radiofrequency Capacitive Sensor.The sensing probe of Radiofrequency Capacitive Sensor is an electric capacity, and this sensing probe is responsive to the specific inductive capacity of detected crude oil.The specific inductive capacity of pure crude oil is far below the specific inductive capacity of water, and therefore, the change of moisture content in crude oil will affect the specific inductive capacity of crude oil.Radiofrequency Capacitive Sensor comprises the radio-frequency oscillator for generation of high-frequency oscillation voltage, sensing probe electric capacity is as a part for the resonant circuit of setting corresponding with RF oscillator, when the water cut of crude oil changes, the impedance of resonant circuit changes, make them different from the resonance degree of radio-frequency oscillator, resonance degree difference determines varying in size of detecting circuit.Therefore, the size of detecting circuit may be used for the water cut characterizing crude oil.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a crude oil pipeline analyzer of water content, is characterized in that, comprising:
Sampling unit, comprises oil rig (11) and is connected to the sample lines (12) between described oil rig (11) and crude oil pipeline (2);
Compound sensor, comprises Radiofrequency Capacitive Sensor, and described Radiofrequency Capacitive Sensor is arranged in described sample lines (12).
2. crude oil pipeline analyzer of water content according to claim 1, is characterized in that, described compound sensor also comprises the temperature sensor of the temperature of the described crude oil for detecting described sampling unit extraction.
3. crude oil pipeline analyzer of water content according to claim 1, it is characterized in that, described sample lines is serially connected with valve member in (12), described sampling unit also comprises the setting-out pipeline (18) be connected with described sample lines (12), the import of described setting-out pipeline (18) is connected between described valve member and described oil rig (11), is serially connected with setting-out valve (19) in described setting-out pipeline (18).
4. crude oil pipeline analyzer of water content according to claim 3, is characterized in that, described sampling unit also comprises: for the cooling end for the Crude Oil Lower-Temp in described oil rig (11).
5. crude oil pipeline analyzer of water content according to claim 4, is characterized in that, described cooling end comprises cooling air duct (15), and the air outlet of described cooling air duct (15) is towards described oil rig (11).
6. crude oil pipeline analyzer of water content according to claim 3, is characterized in that, also comprise controller, and described setting-out valve (19) is connected with described controller, and described sampling unit also comprises:
Tensimeter (13), for measuring the pressure of the crude oil in described oil rig (11), described tensimeter (13) is connected with described controller; And/or,
Thermometer (14), for measuring the temperature of the crude oil in described oil rig (11), described thermometer (14) is connected with described controller.
7. crude oil pipeline analyzer of water content according to claim 6, is characterized in that, described valve member comprises:
Sampling manually-operated gate (16), is serially connected in described sample lines (12); And/or,
Sampling electromagnetic valve (17), be serially connected in described sample lines (12), described sampling electromagnetic valve (17) is connected with described controller.
8. crude oil pipeline analyzer of water content according to claim 1, is characterized in that, described oil rig (11) comprising:
Sampling oil cylinder (111), is connected with described sample lines (12);
Piston (112), is arranged in described sampling oil cylinder (111) movably.
9. crude oil pipeline analyzer of water content according to claim 8, it is characterized in that, also comprise controller, described oil rig (11) also comprises the drive division for driving described piston (112) movement in described sampling oil cylinder (111) be connected with described piston (112), the motor (113) that described drive division comprises handwheel (114) and/or is connected with described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807401.3U CN204374134U (en) | 2014-12-17 | 2014-12-17 | Crude oil pipeline water content analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807401.3U CN204374134U (en) | 2014-12-17 | 2014-12-17 | Crude oil pipeline water content analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN204374134U true CN204374134U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420807401.3U Expired - Fee Related CN204374134U (en) | 2014-12-17 | 2014-12-17 | Crude oil pipeline water content analyzer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403594A (en) * | 2015-12-22 | 2016-03-16 | 无锡信大气象传感网科技有限公司 | Radio-frequency-identification-based oil-conveying pipe water content detection control system |
| CN105758900A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | crude oil pipeline water content analyzer |
| US10197546B2 (en) | 2016-12-09 | 2019-02-05 | Sergei Piltsov | Method and system for continuous monitoring of the water fraction in an oil well stream |
| CN114518443A (en) * | 2020-11-20 | 2022-05-20 | 中国石油化工股份有限公司 | Method for evaluating stability of thick oil colloid |
-
2014
- 2014-12-17 CN CN201420807401.3U patent/CN204374134U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758900A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | crude oil pipeline water content analyzer |
| CN105758900B (en) * | 2014-12-17 | 2019-05-07 | 中国石油天然气股份有限公司 | Crude oil pipeline water content analyzer |
| CN105403594A (en) * | 2015-12-22 | 2016-03-16 | 无锡信大气象传感网科技有限公司 | Radio-frequency-identification-based oil-conveying pipe water content detection control system |
| US10197546B2 (en) | 2016-12-09 | 2019-02-05 | Sergei Piltsov | Method and system for continuous monitoring of the water fraction in an oil well stream |
| CN114518443A (en) * | 2020-11-20 | 2022-05-20 | 中国石油化工股份有限公司 | Method for evaluating stability of thick oil colloid |
| CN114518443B (en) * | 2020-11-20 | 2024-05-10 | 中国石油化工股份有限公司 | Method for evaluating stability of thickened oil colloid |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 |