CN203630059U - Nuclear magnetic resonance technology-based online crude oil moisture content monitor - Google Patents
Nuclear magnetic resonance technology-based online crude oil moisture content monitor Download PDFInfo
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- CN203630059U CN203630059U CN201320689732.7U CN201320689732U CN203630059U CN 203630059 U CN203630059 U CN 203630059U CN 201320689732 U CN201320689732 U CN 201320689732U CN 203630059 U CN203630059 U CN 203630059U
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- magnetic resonance
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- temperature sensor
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Abstract
The utility model discloses a nuclear magnetic resonance technology-based online crude oil moisture content monitor which comprises a pressure sensor, a nuclear magnetic resonance generator, a temperature sensor, an elbow meter and a rotary oil transportation pipeline, wherein two ends of the nuclear magnetic resonance generator are respectively connected with the pressure sensor and the temperature sensor; a data processing display unit is arranged on the nuclear magnetic resonance generator; the temperature sensor is connected with the elbow meter; the elbow meter is connected with a crude oil inflow port; the pressure sensor is connected with a crude oil outflow port through the rotary oil transportation pipeline. The crude oil moisture content monitor is accurate in metering, and the defects that the traditional nuclear magnetic resonance equipment is huge in size and high in construction cost and the like are overcome.
Description
Technical field
The utility model relates to a kind of detector, particularly a kind of crude oil water content on-line monitoring instrument based on nuclear magnetic resonance technique.
Background technology
In process of oil production, the oil of exploiting out from oil well is not single pure matter oil, but includes the heterogeneous fluid of water, gas and other compositions.Different oil fields, oily district and oil well, the moisture and gassiness of oil is all different.The particularly oil well in the output decline stage, in crude oil, the height of water cut is directly determining the even life-span of oil well of production efficiency of oil well, therefore Petroleum Production person expects a kind of apparatus that can real time on-line monitoring water content in crude oil very much.
At present, in Petroleum Production and petroleum chemical industry, the moisture measurement of oil adopts the manual analysis method of traditional timing sampling distillation chemical examination conventionally.Due to the method can not on-line automatic measurement oil water cut, cause the very large waste of manpower and materials.And owing to being subject to the restriction of concrete technical conditions and method, this method needs artificial spot sampling, and real-time is poor, and error is large, cannot ensure measuring accuracy, and use occasion is also restricted.Although there is the method that some utilize in-line meter automatically to detect in scene at present, as capacitance method, microwave method, low energy ray method etc., but these instrument exist such as complex structure, maintenance load is large, cost is high, or there is a ray contamination etc., especially because various measuring sondes form wax deposition, fouling, corrosion etc. in liquid stream, make measuring accuracy unstable.Therefore, implementation structure is simple, it is little to be disturbed, the accurate instrument of online automatic detection Water Content in Oil amount, is the target that petroleum industry is pursued always.
Utility model content
The purpose of this utility model is to provide the crude oil water content on-line monitoring instrument based on nuclear magnetic resonance technique that a kind of precision is high, volume is little.
The utility model adopts following technical scheme:
A crude oil water content on-line monitoring instrument based on nuclear magnetic resonance technique, comprises pressure transducer, nuclear magnetic resonance generator, temperature sensor, elbowmeter, Clothoid type pipeline road; Nuclear magnetic resonance generator two ends are Bonding pressure sensor and temperature sensor respectively, and data processing display unit is set on nuclear magnetic resonance generator, temperature sensor bridge piece flowmeter, and elbowmeter connects crude stream entrance; Pressure transducer connects crude stream outlet through Clothoid type pipeline road.
Crude oil from inflow entrance through elbowmeter, after temperature sensor senses, detect water cut through nuclear magnetic resonance generator, testing result is presented to data processing display unit, and the crude oil after detection, after pressure transducer, flow to crude stream outlet by Clothoid type pipeline road.
Fluid to be measured (crude oil) flows through oil pipeline (select from bottom to top pass-through mode can ensure to measure fluid density even) from bottom to top, under the acting in conjunction of permanent magnet uniform magnetic field and high-frequency electromagnetic signal, hydrogen nuclei in crude oil is because chemical shift occurs nmr phenomena, but the chemical shift amplitude difference that in different material molecule, institute's hydrogen atoms produces in nuclear magnetic resonance, once electromagnetic field of high frequency disappears, hydrogen nuclei can produce reversed magnetic field in reduction process, and in coil inductive electromagnetic signal, detecting unit goes out the quantity of hydrone according to the level signal power detecting and phase calculation, also be the height of water cut.
The utility model utilization advanced measuring and testing device that state-of-the-art nuclear magnetic resonance technique and set electron, communication and computer technology are integrated in the world, measure the water cut in crude oil, it has thoroughly embodied that magnetic resonance detection is contactless, not damaged, measure advantage accurately, and overcome that traditional core magnetic resonance equipment is bulky, high cost defect, be the most rational the most practical water content in crude oil on-line monitoring measuring equipment at present.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is working circuit diagram of the present utility model;
In figure: 1, pressure transducer 2, data processing display unit 3, nuclear magnetic resonance generator 4, temperature sensor 5, elbowmeter 6, crude stream entrance, 7 crude stream outlets, 8 Clothoid type pipeline roads.
Embodiment
Below implement to be used for illustrating the utility model, but be not used for limiting scope of the present utility model.
Referring to Fig. 1 and Fig. 2, a kind of crude oil water content on-line monitoring instrument based on nuclear magnetic resonance technique, comprises pressure transducer, nuclear magnetic resonance generator, temperature sensor, elbowmeter, Clothoid type pipeline road; Nuclear magnetic resonance generator two ends are Bonding pressure sensor and temperature sensor respectively, and data processing display unit is set on nuclear magnetic resonance generator, temperature sensor bridge piece flowmeter, and elbowmeter connects crude stream entrance; Pressure transducer connects crude stream outlet through Clothoid type pipeline road.
Crude oil from inflow entrance through elbowmeter, after temperature sensor senses, detect water cut through nuclear magnetic resonance generator, testing result is presented to data processing display unit, and the crude oil after detection, after pressure transducer, flow to crude stream outlet by Clothoid type pipeline road.
In Fig. 2, fluid to be measured (crude oil) flows through oil pipeline (select from bottom to top pass-through mode can ensure to measure fluid density even) from bottom to top, under the acting in conjunction of permanent magnet uniform magnetic field and high-frequency electromagnetic signal, hydrogen nuclei in crude oil is because chemical shift occurs nmr phenomena, but the chemical shift amplitude difference that in different material molecule, institute's hydrogen atoms produces in nuclear magnetic resonance, once electromagnetic field of high frequency disappears, hydrogen nuclei can produce reversed magnetic field in reduction process, and in coil inductive electromagnetic signal, detecting unit goes out the quantity of hydrone according to the level signal power detecting and phase calculation, also be the height of water cut.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Everyly belong to apparent variation or the still row in protection domain of the present utility model of variation that the technical solution of the utility model extends out.
Claims (1)
1. the crude oil water content on-line monitoring instrument based on nuclear magnetic resonance technique, is characterized in that: comprise pressure transducer, nuclear magnetic resonance generator, temperature sensor, elbowmeter, Clothoid type pipeline road; Nuclear magnetic resonance generator two ends are Bonding pressure sensor and temperature sensor respectively, and data processing display unit is set on nuclear magnetic resonance generator, temperature sensor bridge piece flowmeter, and elbowmeter connects crude stream entrance; Pressure transducer connects crude stream outlet through Clothoid type pipeline road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689732.7U CN203630059U (en) | 2013-11-04 | 2013-11-04 | Nuclear magnetic resonance technology-based online crude oil moisture content monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689732.7U CN203630059U (en) | 2013-11-04 | 2013-11-04 | Nuclear magnetic resonance technology-based online crude oil moisture content monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203630059U true CN203630059U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320689732.7U Expired - Fee Related CN203630059U (en) | 2013-11-04 | 2013-11-04 | Nuclear magnetic resonance technology-based online crude oil moisture content monitor |
Country Status (1)
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| CN (1) | CN203630059U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680212A (en) * | 2018-05-18 | 2018-10-19 | 中国石油天然气股份有限公司 | Multiphase flow magnetic resonance flowmeter graduation apparatus and its moisture content, flow-speed scale method |
| CN114754829A (en) * | 2021-01-11 | 2022-07-15 | 中国石油天然气股份有限公司 | Temperature control system and method for magnetic resonance multiphase flowmeter |
-
2013
- 2013-11-04 CN CN201320689732.7U patent/CN203630059U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680212A (en) * | 2018-05-18 | 2018-10-19 | 中国石油天然气股份有限公司 | Multiphase flow magnetic resonance flowmeter graduation apparatus and its moisture content, flow-speed scale method |
| CN114754829A (en) * | 2021-01-11 | 2022-07-15 | 中国石油天然气股份有限公司 | Temperature control system and method for magnetic resonance multiphase flowmeter |
| CN114754829B (en) * | 2021-01-11 | 2024-05-28 | 中国石油天然气股份有限公司 | Temperature control system and method for magnetic resonance multiphase flowmeter |
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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: 20140604 Termination date: 20141104 |
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| EXPY | Termination of patent right or utility model |