CN2809215Y - Oil well production profile logging tool using microwave resonance method - Google Patents
Oil well production profile logging tool using microwave resonance method Download PDFInfo
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- CN2809215Y CN2809215Y CN 200520084944 CN200520084944U CN2809215Y CN 2809215 Y CN2809215 Y CN 2809215Y CN 200520084944 CN200520084944 CN 200520084944 CN 200520084944 U CN200520084944 U CN 200520084944U CN 2809215 Y CN2809215 Y CN 2809215Y
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Abstract
The utility model provides a cross-section logging instrument for producing oil well production liquid with microwave resonance method, which makes use of the variation of electro-magnetism resonant condition to obtain the output voltage follows the variation of moisture content to change, and then measures the moisture content of the crude oil. The cross-section logging instrument is composed of a collecting pipe, a flow meter, a moisture content sensor and a data processing circuit. The cross-section logging instrument is characterized in that the moisture content sensor consists of a probe and a sensing circuit assembly, and the probe is an elongated internal conductor which is wrapped an insulating sleeve outside; the probe and an external conductor comprise the resonance circuit of the moisture content sensor, and the resonance frequency of the resonance circuit depends on the oil-water ratio of the inner annular space. The probe is connected with a connecting sleeve tube and is sealed by an O-shaped ring, and the root of the probe is equipped with an electromagnetic screen cover. The sensing circuit assembly is composed of an oscillating circuit and a detecting circuit, and the probe is connected with the sensing circuit assembly by a thrusting needle. The sensor with high accurate moisture content developed by the utility model better solves the effect of the mineral content of water to measurement result, and is applied to the crude oil with water-in-oil type and oil-in-water type.
Description
Technical field:
The utility model provides a kind of liquid producing profile log instrument of measuring the production well crude oil water content with the microwave resonance method.
Background technology:
At present in field produces, the measurement of water ratio method of oil well liquid-producing profile logging instrument mainly contains two kinds of capacitance method and impedance methods.Practice shows, difference by means of oil, water dielectric constant comes the capacitance method of work, moisture content greater than 60% high aqueous conditions under, because water is continuous phase, the influence that its electricity is led increases, make conductive electric current make capacitance method lose resolution ratio, can't under high aqueous conditions, use as the logging instrument moisture sensor to moisture content much larger than displacement current.And impedance method is lower than at 40% o'clock at moisture content, because water is decentralized photo, the variation of moisture content changes little to the impedance of oil water mixture, thus impedance method at moisture content less than the resolution ratio of also losing moisture content in 40% o'clock, only at moisture content greater than 80% o'clock, resolution ratio is arranged.The size of impedance simultaneously is subjected to the influence of electrode surface clean-up performance easily, and when electrode surface absorption one deck oil film, then two interelectrode impedances become big, and output signal is beated.Therefore impedance method is only applicable to the measurement of the crude oil water content under high-moisture percentage, the big flow.So up to the present, capacitance method and impedance method all fail to solve preferably the measurement difficult problem that moisture content changes in practice between 0～100%.
Summary of the invention:
The purpose of this utility model is that a kind of liquid producing profile log instrument of measuring the production well crude oil water content with the microwave resonance method will be provided.
The purpose of this utility model is achieved in that when frequency electromagnetic waves (microwave) is propagated its wavelength changes with the variation of moisture content in wet crude, and cause the variation of resonant tank frequency, cause the resonant condition that changes between resonant tank and the oscillating circuit, utilize the variation of EMR electromagnetic resonance state to realize that output voltage changes with the variation of moisture content, can measure moisture content in the crude oil according to this variation.This logging instrument is made up of header, flow meter, moisture sensor, electric supply installation, data processor etc.It is characterized in that moisture sensor is made of probe and sensing circuit assembly.Probe is that an elongated inner wire is wrapped up in insulation sleeve outward, resonance circuit with outer conductor composition moisture sensor, its resonant frequency is by the profit ratio decision of its interior annular space, and probe links to each other with branch sleeve and seals with O type circle, and its root is equipped with electro-magnetic shielding cover.The sensing circuit assembly is made of oscillating circuit and detecting circuit etc.The probe with the sensing circuit assembly between be connected with contact pin.
Wavelength change when this logging instrument utilizes microwave to propagate in water-bearing media and working, it can expand the measurement category of moisture content to 0～100%, and improved the precision of measuring, solved the problem that oil field high-moisture percentage production well production profile is difficult to measure.
Description of drawings:
Fig. 1 is a structural representation of measuring production well liquid producing profile log instrument according to microwave resonance method provided by the utility model.
Fig. 2 is the structural representation that the microwave resonance method that proposes according to the utility model is measured the crude oil water content sensor of production well liquid producing profile log instrument.
Fig. 3 is an operating principle block diagram of the present utility model.
The specific embodiment:
Describe concrete structure of the present utility model and operating principle in detail below in conjunction with accompanying drawing.
The utility model is to utilize the resonant condition of frequency electromagnetic waves to measure moisture content in the crude oil.Its wavelength changes with the variation of moisture content when frequency electromagnetic waves is propagated in wet crude, and causes the variation of resonant tank frequency, causes the resonant condition that changes between resonant tank and the oscillating circuit, can measure moisture content in the crude oil according to this variation.Oscillating circuit produces the frequency electromagnetic waves that frequency is constant, and enters in the resonant tank, if when the intrinsic frequency of resonant tank and high-frequency electromagnetic wave frequency differ greatly, the loop is in the off resonance state, voltage low value after the detecting circuit detection; If the intrinsic frequency of resonant tank and high-frequency electromagnetic wave frequency equate that then the loop is in resonant condition, the high value of voltage after the detection.The intrinsic frequency of resonant tank is relevant with the dielectric property around the antenna probes, when the antenna probe is in the water, electrical quantity by regulating loop, the intrinsic frequency of resonant tank is equated with the wave frequency that oscillating circuit sends, then electromagnetic wave causes resonance in the loop, the high value of voltage after the detection; Otherwise when the antenna probe placed oil, the intrinsic frequency of resonant tank and electromagnetic frequency differed bigger, and then the loop is in the off resonance state, voltage low value after the detection; When antenna probe placed oil-containing water, neither be in the also non-state that is in complete off resonance of complete resonance, the voltage after the detection was between the high low value electromagnetic wave in the loop.Therefore, according to the magnitude of voltage after the detection, can determine antenna probes ambient medium profit ratio.Magnitude of voltage after the detection converts frequency to through data processor and is transmitted back to ground center processor deciphering demonstration by data cable.
As shown in Figure 1, the utility model is connected in sequence by weighted lever feed liquor cover 1, turbine flowmeter pipe nipple 2, the sensitive probe 3 of moisture sensor, sensing circuit assembly 5, logging instrument program change-over circuit 6 and single-core cable 8.Sensitive probe and sensing circuit assembly constitute moisture sensor, as Fig. 2, probe is the elongated inner wire 9 outer insulation sleeves 11 of wrapping up in, probe links to each other with branch sleeve 15 and seals with O type circle 12, its root is equipped with electro-magnetic shielding cover 4, and probe is installed in the resonance circuit that has constituted moisture sensor in the outer conductor 10; Sensing circuit assembly 5 is made of oscillating circuit and detecting circuit etc., is fixed in the circuit assembly overcoat 14 with mounting medium 16 each element with the sensing circuit assembly, and on the top antidetonation rubber cushion 13 is installed.The sensing circuit assembly is connected with contact pin 21 between the inner wire with probe.Logging instrument program change-over circuit 6 be peripherally equipped with vibration damping filler 7 (Fig. 1).Resonance circuit, oscillating circuit, detecting circuit and logging instrument program change-over circuit are selected the component of performance high-quality for use.Among the figure, 17,19 is the power supply positive and negative electrode of sensing circuit, and 18 is data cable, and 20 are the fixing hold-down bolt of sensing circuit.
The main performance index of this instrument is:
A, measurement of water ratio 0～100% are explained error ± 5%;
B, flow measurement range 20～100m
3/ d explains error ± 5%;
C, withstand voltage scope 0～60Mpa;
D, heatproof: 80 ℃, 125 ℃, 150 ℃ (stepping supply, selected) by the user.
The high accuracy moisture sensor that the utility model is developed has solved the influence of the salinity of water to measurement result preferably, can both be suitable for the crude oil of water-in-oil type and oil-in-water type.
Claims (3)
1. microwave resonance method production well liquid producing profile log instrument, utilize the variation of EMR electromagnetic resonance state to realize that output voltage changes with the variation of moisture content, measure the moisture content in the crude oil, it is by header, flow meter, moisture sensor, compositions such as data processing circuit, it is characterized in that moisture sensor is made of probe and sensing circuit assembly, probe is the resonance circuit that an elongated inner wire is wrapped up in insulation sleeve and outer conductor composition moisture sensor outward, its resonant frequency is by the profit ratio decision of its interior annular space, probe links to each other with branch sleeve and seals with O type circle, and its root is equipped with electro-magnetic shielding cover; The sensing circuit assembly is made of oscillating circuit and detecting circuit etc.; The probe with the sensing circuit assembly between be connected with contact pin.
2. production well liquid producing profile log instrument according to claim 1 is characterized in that being fixed in the overcoat of circuit assembly with mounting medium each element with the sensing circuit assembly, and is installed in the branch sleeve, and the antidetonation rubber cushion is equipped with on its top.
3. production well liquid producing profile log instrument according to claim 1 is equipped with the part that contact pin is connected and constitutes harmonic circuit between it is characterized in that popping one's head in inner wire and the sensing circuit assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520084944 CN2809215Y (en) | 2005-07-03 | 2005-07-03 | Oil well production profile logging tool using microwave resonance method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520084944 CN2809215Y (en) | 2005-07-03 | 2005-07-03 | Oil well production profile logging tool using microwave resonance method |
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| CN2809215Y true CN2809215Y (en) | 2006-08-23 |
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| CN 200520084944 Expired - Fee Related CN2809215Y (en) | 2005-07-03 | 2005-07-03 | Oil well production profile logging tool using microwave resonance method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956549A (en) * | 2010-08-19 | 2011-01-26 | 西安威盛电子仪器有限公司 | Electromagnetic focusing sleeve screw thread logging instrument |
| CN104246126A (en) * | 2011-12-20 | 2014-12-24 | 通用电气公司 | System and method for monitoring down-hole fluids |
| US9638653B2 (en) | 2010-11-09 | 2017-05-02 | General Electricity Company | Highly selective chemical and biological sensors |
| US9658178B2 (en) | 2012-09-28 | 2017-05-23 | General Electric Company | Sensor systems for measuring an interface level in a multi-phase fluid composition |
| US9746452B2 (en) | 2012-08-22 | 2017-08-29 | General Electric Company | Wireless system and method for measuring an operative condition of a machine |
| CN107288627A (en) * | 2017-05-22 | 2017-10-24 | 天津大学 | Double flat line microwave resonant cavity sensor oil-water two-phase flow high-moisture percentage measuring method |
| CN107654226A (en) * | 2017-08-23 | 2018-02-02 | 中国石油天然气股份有限公司 | Underground moisture content meter |
| CN107849916A (en) * | 2015-08-07 | 2018-03-27 | 沙特***石油公司 | For the method and apparatus using electromechanical resonator measurement fluid properties |
| US10018613B2 (en) | 2006-11-16 | 2018-07-10 | General Electric Company | Sensing system and method for analyzing a fluid at an industrial site |
| CN109115653A (en) * | 2018-09-26 | 2019-01-01 | 重庆科技学院 | A kind of tuning fork resonance crude oil water content measuring device and its measurement method |
| US10598650B2 (en) | 2012-08-22 | 2020-03-24 | General Electric Company | System and method for measuring an operative condition of a machine |
| US10684268B2 (en) | 2012-09-28 | 2020-06-16 | Bl Technologies, Inc. | Sensor systems for measuring an interface level in a multi-phase fluid composition |
| CN112177593A (en) * | 2020-10-12 | 2021-01-05 | 天津大学 | High-water-content oil-water emulsion water holdup measuring method based on microwave resonance sensor |
| US10914698B2 (en) | 2006-11-16 | 2021-02-09 | General Electric Company | Sensing method and system |
-
2005
- 2005-07-03 CN CN 200520084944 patent/CN2809215Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10018613B2 (en) | 2006-11-16 | 2018-07-10 | General Electric Company | Sensing system and method for analyzing a fluid at an industrial site |
| US10914698B2 (en) | 2006-11-16 | 2021-02-09 | General Electric Company | Sensing method and system |
| CN101956549A (en) * | 2010-08-19 | 2011-01-26 | 西安威盛电子仪器有限公司 | Electromagnetic focusing sleeve screw thread logging instrument |
| US9638653B2 (en) | 2010-11-09 | 2017-05-02 | General Electricity Company | Highly selective chemical and biological sensors |
| CN104246126A (en) * | 2011-12-20 | 2014-12-24 | 通用电气公司 | System and method for monitoring down-hole fluids |
| US9746452B2 (en) | 2012-08-22 | 2017-08-29 | General Electric Company | Wireless system and method for measuring an operative condition of a machine |
| US10598650B2 (en) | 2012-08-22 | 2020-03-24 | General Electric Company | System and method for measuring an operative condition of a machine |
| US10684268B2 (en) | 2012-09-28 | 2020-06-16 | Bl Technologies, Inc. | Sensor systems for measuring an interface level in a multi-phase fluid composition |
| US9658178B2 (en) | 2012-09-28 | 2017-05-23 | General Electric Company | Sensor systems for measuring an interface level in a multi-phase fluid composition |
| CN107849916A (en) * | 2015-08-07 | 2018-03-27 | 沙特***石油公司 | For the method and apparatus using electromechanical resonator measurement fluid properties |
| CN107849916B (en) * | 2015-08-07 | 2021-07-06 | 沙特***石油公司 | Method and apparatus for measuring fluid properties using an electromechanical resonator |
| CN107288627A (en) * | 2017-05-22 | 2017-10-24 | 天津大学 | Double flat line microwave resonant cavity sensor oil-water two-phase flow high-moisture percentage measuring method |
| CN107654226A (en) * | 2017-08-23 | 2018-02-02 | 中国石油天然气股份有限公司 | Underground moisture content meter |
| CN109115653A (en) * | 2018-09-26 | 2019-01-01 | 重庆科技学院 | A kind of tuning fork resonance crude oil water content measuring device and its measurement method |
| CN109115653B (en) * | 2018-09-26 | 2023-03-28 | 重庆科技学院 | Tuning fork resonance crude oil water content measuring device and measuring method thereof |
| CN112177593A (en) * | 2020-10-12 | 2021-01-05 | 天津大学 | High-water-content oil-water emulsion water holdup measuring method based on microwave resonance sensor |
| CN112177593B (en) * | 2020-10-12 | 2022-05-27 | 天津大学 | High-water-content oil-water emulsion water holdup measuring method based on microwave resonance sensor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060823 |