CN202372439U - Online crude oil water content detector employing infrared image photometry - Google Patents
Online crude oil water content detector employing infrared image photometry Download PDFInfo
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- CN202372439U CN202372439U CN 201120504236 CN201120504236U CN202372439U CN 202372439 U CN202372439 U CN 202372439U CN 201120504236 CN201120504236 CN 201120504236 CN 201120504236 U CN201120504236 U CN 201120504236U CN 202372439 U CN202372439 U CN 202372439U
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- 239000010779 crude oil Substances 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000005375 photometry Methods 0.000 title claims abstract description 8
- 238000003331 infrared imaging Methods 0.000 claims abstract description 11
- 230000003287 optical effect Effects 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 11
- 239000003921 oil Substances 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000003384 imaging method Methods 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
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- 230000035699 permeability Effects 0.000 abstract 1
- 239000007762 w/o emulsion Substances 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 32
- 238000000034 method Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000012946 outsourcing Methods 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
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- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- AEEAZFQPYUMBPY-UHFFFAOYSA-N [I].[W] Chemical compound [I].[W] AEEAZFQPYUMBPY-UHFFFAOYSA-N 0.000 description 1
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- 229940085805 fiberall Drugs 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model belongs to the technical field of oil detection, and relates to an online detector. In order to solve the technical problem, an online crude oil water content detector employing infrared image photometry is provided. The technical scheme is that: the online crude oil water content detector comprises an infrared radiation source, an incident window of a sample chamber, an emergent window, an imaging objective, a half-reflecting half-transmitting combined prism, an infrared imaging unit, an infrared detection unit and the like, wherein the radiation of the infrared radiation source enters the sample chamber through a condenser, is emitted from the emergent window, and enters the infrared imaging unit and the infrared detection unit through the imaging objective and the half-reflecting half-transmitting combined prism, and sampling and sampling subdivision are realized by utilizing dual infrared bands. The water content of crude oil is calculated by measuring the permeability of a crude oil sample. Oil-water two-phase fluid, water-in-oil emulsion and oil-in-water emulsion are involved in measurement. Therefore, measurement accuracy is improved. The detector has remarkable advantages in the water content measurement of high-water content crude oil.
Description
Technical field
The utility model belongs to oil detection technique field, particularly relates to a kind of on-line detector of crude oil water content.
Background technology
The online detection of crude oil water content is the important step in the oilfield process, and it will replace manual detection and promote the robotization of field produces.Crude oil is made up of immiscible oil-water two-phase flow body, wherein also comprises the emulsion layer that exists between the profit.Though existing microwave method, capacitance method, electrical conductivity method, rays method etc. form multiple pick-up unit, they on measuring accuracy, all there are many problems in aspects such as stability and safety and environmental protection.
With the most approaching prior art of the utility model be that the patent No. is US 7,233, the United States Patent (USP) of 001B2, denomination of invention is " hyperchannel infrared optics liquid phase component appearance " (multi-channel infrared optical phase fraction meter).As shown in Figure 1; Infrared light by infrared origin 101 sends is injected sample window 103 and 105 through condenser 102; Crude oil sample 104 flows through between sample window 103 and 105, is focused on by image-forming objective lens 106 to pass on the light fibre bundle 107, passes light fibre bundle 107 and is made up of 4 groups of optical fiber 108; The outlet of every group of optical fiber all is furnished with the infrared narrow band filter 109 of a fixed wave length; The infrared remote receiver 110 of respective wavelength all is housed in the back of each infrared narrow band filter, measures the parameter of crude oil water content, and then calculate the water percentage of crude oil.
The subject matter that should " hyperchannel infrared optics liquid phase component appearance " exists is: the local mean values of crude oil sample can only be measured, the actual value of certain details can not be reflected, also can't be to the sample segmentation of further sampling, so influence measuring accuracy.
Summary of the invention
In order to overcome the defective that prior art exists, the purpose of the utility model is to adopt " infrared image photometry " to realize the high-acruracy survey to crude oil water content.
The technical matters that the utility model will solve is: a kind of crude oil water content on-line detector that adopts the infrared image photometry is provided.The technical scheme of technical solution problem is as shown in Figure 2, comprises infrared origin 201, condenser 202, sample chamber incidence window 203, outgoing window 204, crude oil sample passage 205, image-forming objective lens 206, half-reflection and half-transmission combined prism 207, infrared imaging unit 208, infrared detecting unit 209; Wherein, comprise first infrared narrow band filter 210, CCD image device 211, video follower 212 in the infrared imaging unit 208; In infrared detecting unit 209, comprise second infrared narrow band filter 213, infrared eye 214, detector driving circuit 215, on-line detector housing 216, crude stream through pipeline 301 and seal for pipe joints gland 302.
On the optical axis of this on-line detector, place infrared origin 201, condenser 202, sample chamber incidence window 203, outgoing window 204, image-forming objective lens 206, half-reflection and half-transmission combined prism 207 from left to right successively, first infrared narrow band filter 210, CCD image device 211, video follower 212 are arranged in infrared imaging unit 208; Infrared origin 201 is positioned on the focus of condenser 202, and sample chamber incidence window 203, outgoing window 204 is parallel to each other between the two and perpendicular to optical axis, forms crude oil sample passage 205; The left focal plane of image-forming objective lens 206 overlaps with the inside surface of sample chamber outgoing window 204, the receiving plane optical conjugate of the infrared eye 214 in the right focal plane of image-forming objective lens 206 and the receiving plane of CCD image device 211 and the infrared detecting unit 209; The light splitting surface of half-reflection and half-transmission combined prism 207 becomes 45 with optical axis; On the optical axis of the transmitted light of half-reflection and half-transmission combined prism 207 light splitting surfaces; Be equipped with first infrared narrow band filter 210, CCD image device 211 successively; The receiving plane of CCD image device is positioned on the right focal plane of image-forming objective lens 206, has lead to be connected between CCD image device 211 and the video follower 212, and video follower 212 links to each other with computing machine through USB interface; On the catoptrical optical axis of half-reflection and half-transmission combined prism 207; Be equipped with second infrared narrow band filter 213, unit infrared eye 214 and detector driving circuit 215 successively; The receiving plane of infrared eye 214 is positioned on the right focal plane of image-forming objective lens 206; Have lead to be connected between infrared eye 214 and the detector driving circuit 215, driving circuit 215 links to each other with computing machine through serial line interface; The infrared detecting unit 209 of the light path of the left side head of this on-line detector and the infrared imaging unit 208 on the right and upper right quarter all by on on-line detector housing 216 covers, seals the outside; When using; The left side head of this on-line detector is through the jack of crude stream on pipeline; Insert crude stream in pipeline 301; Make the crude oil sample passage 205 in the head of on-line detector left side aim at crude stream through the center of pipeline 301, on-line detector left side head and crude stream are pushed down sealing through the jack external application seal for pipe joints gland 302 of pipeline 301.
Sample chamber incidence window 203 is identical with the structure of outgoing window 204, and is as shown in Figure 4, is made up of substrate 401, conducting film 402, electrode 403 and gem 404; In substrate 401, be coated with conducting film 402; Be coated with electrode 403 at the two ends of conducting film 402; Gem 404 is pressed on conducting film 402 and the electrode 403; Incidence window 203 forms crude oil sample passages 205 with outgoing window 204 in the sample chamber, makes to have in the facing of gem 404 to install relatively, lets crude oil flow through smoothly.
The detection data of this on-line detector are through in the USB interface input computing machine, and through the computer software acquisition testing data of design in advance, and are as shown in Figure 5, carry out data processing after, draw crude oil water content.
Principle of work explanation: the crude oil water content on-line detector through adopting the infrared image photometry carries out the well head on-line measurement, can be directly installed in the oil pipeline or is installed in branch's oil circuit of oil pipeline.For guaranteeing measuring accuracy, best scheme is that the crude oil water content on-line detector is installed in the oil pipeline vertical component.When crude stream during through the sample chamber of on-line detector, because the sample chamber window material has high rigidity and high surface finish, the sample chamber window material is heated to certain temperature simultaneously, and crude oil sample is flowed apace, helps quick sampling.
The utility model adopts CCD photoelectronic imaging device to replace fibre-optical probe and unit infrared eye in the existing patent, have intense absorption at infrared radiation wave band 0.85 μ owing to crude oil, and glassware for drinking water has higher transparency.To the crude oil sample segmentation of sampling.Each pixel elements is a passage, through all passages are carried out comprehensive calculating, obtains accurate ow ratio.
Owing to glassware for drinking water intense absorption is arranged at another infrared radiation wave band 1.95 μ, and crude oil has higher transparency.Through demarcation in advance, can adopt the unit infrared radiation sensor to confirm the content of water, to proofread and correct the result of crude oil water content.
The absorbing rule of light in same sex medium observed in the absorption of infrared radiation in crude oil sample.When light passes through oil and water, defer to the decay of E index law, promptly have
I＝I
0e
-α·L (1)
L is the thickness of sample, i.e. the distance of oil circuit input window and output window; I0 is the incident light intensity, and I is the intensity of light behind the transmission sample; α is the attenuation coefficient of light beam.Sample to profit mixes then has:
L＝Lo+Lw
Wherein, Lo is the thickness of oil phase, and Lw is the thickness of water.
I＝I
0e
-(αo·Lo+αw·Lw) (2)
α o is the attenuation coefficient of crude oil, and α w is the attenuation coefficient of water.
Then the water percentage of crude oil is:
P＝Lw/L
Be Lw=LP and Lo=(1-P) L
Substitution (2) formula then has
I＝I
0e
-((αw-αo)·P+αo))·L (3)
Then
P＝(ln(I
0/I)/L-αo)/(αw-αo) (4)
Calculate water percentage P by formula (4).
The good effect of the utility model is: compare with existing method and have two advantages, the first is simple in structure, and it two is that precision is high.Particularly realize the online detection of water percentage of high-moisture percentage crude oil, measuring accuracy is up to more than 0.5%.
Description of drawings
Fig. 1 is a prior art theory structure synoptic diagram;
Fig. 2 is the structural representation of the utility model;
Fig. 3 is the crude oil detector mounting structure figure of the utility model;
Fig. 4 is the sample incidence window and the exit window mouth structure synoptic diagram of the utility model.
Fig. 5 is the computer data processing flow chart.
Embodiment:
The utility model is pressed Fig. 2, structure shown in Figure 4 is implemented.
Utilize the near-infrared radiation source luminous; Through condenser illumination sample, through the imaging optical system imaging, infrared radiation is absorbed in crude oil sample; Be converted into the image information that computing machine can be discerned and handle, the transmitance of calculation sample promptly can be measured the water cut of crude oil sample exactly.
Infra red radiation light source 201 adopts iodine-tungsten lamp, has stronger radiation at 0.8 μ to 2.0 μ near-infrared bands.Collector lens 202 adopts the biconvex lens of two combinations, and sample chamber incidence window 203 is implemented by structure shown in Figure 4 with outgoing window 204, and is identical with technical scheme.The two ends of electrode 403 are added with the alternating voltage of 50-120 volt, and image-forming objective lens 206 adopts cemented doublet; Half-reflection and half-transmission prism 207 adopts the right-angle prism gummed of 45 to form, and its hypotenuse is a cemented surface, is coated with part reflective semitransparent film.
First infrared narrow band filter 210 in the infrared imaging unit 208 adopts 0.85 μ wave band plated film narrow band pass filter; CCD image device 211 adopts infrared video CCD receiver; Spectral peak is at 0.85 μ, and video follower 212 has USB interface, can be connected with computing machine; Second infrared narrow band filter 213 in the infrared detecting unit 209 adopts 1.95 μ wave band plated film narrow band pass filters; Infrared eye 214 adopts indium gallium arsenic semiconductor infrared eye; Can outsourcing order goods; Detector driving circuit 215 adopts the combination of high stable direct current amplifier integrated block and high stability bias supply, available outsourcing piece combination.
In concrete the application; This on-line detector inserts crude stream through crude stream in pipeline 301 through the jack on the pipeline 301; Make crude oil sample passage 205 aim at crude stream through the center of pipeline 301, on-line detector housing 216 compresses sealing with the jack place of crude stream on pipeline 301 with seal for pipe joints gland 302.
Claims (2)
1. a crude oil water content on-line detector that adopts the infrared image photometry is characterized in that: comprise infrared origin (201), condenser (202), sample chamber incidence window (203), outgoing window (204), crude oil sample passage (205), image-forming objective lens (206), half-reflection and half-transmission combined prism (207), infrared imaging unit (208), infrared detecting unit (209) and on-line detector housing (216); Wherein, Comprise first infrared narrow band filter (210), CCD image device (211), video follower (212) in the infrared imaging unit (208), in infrared detecting unit (209), comprise second infrared narrow band filter (213), infrared eye (214), detector driving circuit (215); On the optical axis of this on-line detector, place infrared origin (201), condenser (202), sample chamber incidence window (203), outgoing window (204), image-forming objective lens (206), half-reflection and half-transmission combined prism (207) from left to right successively, first infrared narrow band filter (210), CCD image device (211), video follower (212) are arranged in infrared imaging unit (208); Infrared origin (201) is positioned on the focus of condenser (202), and sample chamber incidence window (203), outgoing window (204) is parallel to each other between the two and perpendicular to optical axis, forms crude oil sample passage (205); The left focal plane of image-forming objective lens (206) overlaps with the inside surface of sample chamber outgoing window (204), the receiving plane of the right focal plane of image-forming objective lens (206) and CCD image device (211) and the receiving plane optical conjugate of the infrared eye (214) in the infrared detecting unit (209); The light splitting surface of half-reflection and half-transmission combined prism (207) becomes 45 with optical axis; On the optical axis of the transmitted light of half-reflection and half-transmission combined prism (207) light splitting surface; Be equipped with first infrared narrow band filter (210), CCD image device (211) successively; The receiving plane of CCD image device (211) is positioned on the right focal plane of image-forming objective lens (206), has lead to be connected between CCD image device (211) and the video follower (212), and video follower (212) links to each other with computing machine through USB interface; On the catoptrical optical axis of half-reflection and half-transmission combined prism (207); Be equipped with second infrared narrow band filter (213), unit infrared eye (214) and detector driving circuit (215) successively; The receiving plane of infrared eye (214) is positioned on the right focal plane of image-forming objective lens (206); Have lead to be connected between infrared eye (214) and the detector driving circuit (215), driving circuit (215) links to each other with computing machine through serial line interface; The infrared imaging unit (208) on the light path of the left side head of this on-line detector and the right and the infrared detecting unit (209) of upper right quarter all by on on-line detector housing (216) cover, seal the outside; When using; The left side head of this on-line detector is through the jack of crude stream on pipeline (301); Insert crude stream in pipeline (301); Make the crude oil sample passage (205) in the head of on-line detector left side aim at crude stream through the center of pipeline (301), on-line detector left side head and crude stream are pushed down sealing through the jack external application seal for pipe joints gland (302) of pipeline (301).
2. a kind of crude oil water content on-line detector that adopts the infrared image photometry according to claim 1; It is characterized in that: sample chamber incidence window (203) is identical with the structure of outgoing window (204), is made up of substrate (401), conducting film (402), electrode (403) and gem (404); In substrate (401), be coated with conducting film (402); Be coated with electrode (403) at the two ends of conducting film (402); Gem (404) is pressed on conducting film (402) and the electrode (403); On the crude oil sample passage (205) that sample chamber incidence window (203) and outgoing window (204) form, make in have gem the facing of (404) and install relatively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201120504236 CN202372439U (en) | 2011-12-07 | 2011-12-07 | Online crude oil water content detector employing infrared image photometry |
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| CN 201120504236 CN202372439U (en) | 2011-12-07 | 2011-12-07 | Online crude oil water content detector employing infrared image photometry |
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| CN103048291A (en) * | 2012-12-11 | 2013-04-17 | 北京乾达源科技有限公司 | Water micro-oiliness and pollution degree on-line analysis method and device based on CCD (charge coupled device) scattered refraction spectrum method |
| CN103336012A (en) * | 2013-07-04 | 2013-10-02 | 吴江市汇泉纺织有限公司 | Machine oil warning system of loom |
| CN105675522A (en) * | 2016-04-22 | 2016-06-15 | 青岛市光电工程技术研究院 | Device for detecting content of water in crude oil |
| CN108007893A (en) * | 2016-10-31 | 2018-05-08 | 尚世哲 | A kind of photoelectric method and device of quick measurement crude oil water content |
| CN108827899A (en) * | 2018-05-24 | 2018-11-16 | 江苏大学 | Infrared and microwave complex probe imaging platform and its imaging method |
| CN109187426A (en) * | 2018-08-30 | 2019-01-11 | 四川莱威盛世科技有限公司 | A kind of water content in oil measuring instrument and measurement method based on infra-red sepectrometry |
| CN109682775A (en) * | 2019-01-11 | 2019-04-26 | 大连四方佳特流体设备有限公司 | Crude oil multiphase flow infrared intelligent metering system |
| CN111289579A (en) * | 2020-03-12 | 2020-06-16 | 燕山大学 | Integrated sensor based on land surface gas-liquid separation and water holding rate correction method |
| TWI730889B (en) * | 2020-08-31 | 2021-06-11 | 國立虎尾科技大學 | Method for detecting the water content in the liquid to be measured by infrared rays |
| CN113324990A (en) * | 2021-06-01 | 2021-08-31 | 深圳市先波科技有限公司 | Device capable of being used for on-line monitoring of oil quality and detection method thereof |
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2011
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| CN103048291A (en) * | 2012-12-11 | 2013-04-17 | 北京乾达源科技有限公司 | Water micro-oiliness and pollution degree on-line analysis method and device based on CCD (charge coupled device) scattered refraction spectrum method |
| CN103048291B (en) * | 2012-12-11 | 2016-05-18 | 北京乾达源科技有限公司 | Micro-oil-containing and dustiness on-line analysis in water based on the loose refraction of CCD spectrometry |
| CN103336012A (en) * | 2013-07-04 | 2013-10-02 | 吴江市汇泉纺织有限公司 | Machine oil warning system of loom |
| CN105675522A (en) * | 2016-04-22 | 2016-06-15 | 青岛市光电工程技术研究院 | Device for detecting content of water in crude oil |
| CN108007893A (en) * | 2016-10-31 | 2018-05-08 | 尚世哲 | A kind of photoelectric method and device of quick measurement crude oil water content |
| CN108827899A (en) * | 2018-05-24 | 2018-11-16 | 江苏大学 | Infrared and microwave complex probe imaging platform and its imaging method |
| CN109187426A (en) * | 2018-08-30 | 2019-01-11 | 四川莱威盛世科技有限公司 | A kind of water content in oil measuring instrument and measurement method based on infra-red sepectrometry |
| CN109682775A (en) * | 2019-01-11 | 2019-04-26 | 大连四方佳特流体设备有限公司 | Crude oil multiphase flow infrared intelligent metering system |
| CN111289579A (en) * | 2020-03-12 | 2020-06-16 | 燕山大学 | Integrated sensor based on land surface gas-liquid separation and water holding rate correction method |
| TWI730889B (en) * | 2020-08-31 | 2021-06-11 | 國立虎尾科技大學 | Method for detecting the water content in the liquid to be measured by infrared rays |
| CN113324990A (en) * | 2021-06-01 | 2021-08-31 | 深圳市先波科技有限公司 | Device capable of being used for on-line monitoring of oil quality and detection method thereof |
| CN114838972A (en) * | 2022-07-04 | 2022-08-02 | 江苏名欧精密机械有限公司 | Mechanical fault early warning method and system based on industrial big data and oil analysis |
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Effective date of registration: 20160215 Address after: 116052 No. 29 Xingyuan Road, economic development zone, Lushunkou District, Liaoning, Dalian Patentee after: Sifang Jiate Fluid Equipment Co., Ltd., Dalian Address before: 130022, room 22, building 7089, 405 Satellite Road, Changchun, Jilin, Chaoyang District Patentee before: Shang Shizhe Patentee before: Wang Kefei |
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Granted publication date: 20120808 Termination date: 20191207 |