CN102288576B - Underground fluid spectral analysis device - Google Patents
Underground fluid spectral analysis device Download PDFInfo
- Publication number
- CN102288576B CN102288576B CN 201110211983 CN201110211983A CN102288576B CN 102288576 B CN102288576 B CN 102288576B CN 201110211983 CN201110211983 CN 201110211983 CN 201110211983 A CN201110211983 A CN 201110211983A CN 102288576 B CN102288576 B CN 102288576B
- Authority
- CN
- China
- Prior art keywords
- fluid
- optical window
- fibre bundle
- zoarium
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses an underground fluid spectral analysis device and belongs to the technical field of fluid component analysis devices. The underground fluid spectral analysis device comprises an optical window base body, a left side optical window, a right side optical window, a fluid passing device and an optical fiber bundle solidifying body, wherein one end of the optical fiber bundle solidifying body is propped against the right side optical window; the other end of the optical fiber bundle solidifying body extends out of the right side of the optical window base body; the fluid passing device is clamped in the optical window base body and between the left side optical window and the right side optical window; the fluid passing device is provided with a fluid channel; the fluid channel is connected with a fluid inlet and a fluid outlet; the fluid channel has the same diameter along the fluid passing direction; the diameter of the fluid channel is as same as that of the fluid inlet and that of the fluid outlet respectively; no fluid stagnation space exists; and no fluid is stacked in the fluid channel, so that real-time measurement accuracy of the fluid is guaranteed.
Description
Technical field
The present invention relates to fluid ingredient analytical device technique field, particularly a kind ofly use the underground fluid spectral analysis device that near infrared spectrum is analyzed High Temperature High Pressure down-hole reservoir fluid composition.
Background technology
In the oil field, need at any time the composition of downhole in reservoir fluid to be analyzed, in time know the relative content of oil, gas, water in the downhole in reservoir fluid, be beneficial to understand more intuitively the character of reservoir fluid, thereby make rational production development decision-making.At present, be used for the composition of downhole in reservoir fluid is analyzed normally from the downhole in reservoir samples fluid, then it taken and detect analysis on the ground, adopt this detection method, brought inconvenience to operation.
Publication number is that the Chinese patent of CN 1740771 A discloses a kind of high-temperature, high pressure fluid ingredient analytical sensor, measure the composition of fluid by the spectrum of fiber optic conduction, not only have advantages of simple in structure, good airproof performance, be fit to high temperature and high pressure environment, can also be in order to monitor at any time the composition of downhole fluid, have easy to use, advantage efficiently.Referring to accompanying drawing 1, this sensor comprises primary seal body 3, is placed in fluid in the primary seal body 3 by device, and right glass sheet 5 is resisted against the right gland bonnet 4 on primary seal body 3, the right glass sheet 5 and can contains optical fiber 2 and be set in enclosing cover on the right gland bonnet 4.Wherein, this fluid comprises fluid intake 6, fluid egress point 7 and airtight stop chamber 18 by device.When using this sensor, fluid flows into from fluid intake 6, through airtight stop chamber 18, flows out from fluid egress point 7, wherein, airtight stop chamber 18 is spectral absorption chambeies of fibre bundle 2 correspondences, because this fluid passes through the fluid egress point 7 of device less than fluid intake 6, and is provided with the airtight stop chamber 18 of a circle, therefore, easily cause fluid stagnation to pile up, the spectrum that causes fibre bundle 2 to absorb is difficult to the spectrum of definite fluid that whether transports in real time, can't guarantee the accuracy that fluid is measured in real time.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of by changing the structure of fluid passage, the underground fluid spectral analysis device of the real-time measurement accuracy of assurance fluid.
To achieve these goals, the technical scheme of underground fluid spectral analysis device provided by the invention is as follows:
Underground fluid spectral analysis device provided by the invention comprises that optical window pedestal, left side optical window, right side optical window, fluid are by device and fibre bundle solid zoarium; One end of described fibre bundle solid zoarium is resisted against on the optical window of described right side, and the other end of described fibre bundle solid zoarium is protruding in the right side of described optical window pedestal; Described fluid places described optical window pedestal by device card, between left side optical window and the right side optical window, described fluid is provided with the fluid passage by device, be connected with fluid intake and fluid egress point on the described fluid passage, it is characterized in that, described fluid passage is identical by orient diameter along fluid, and described fluid passage is also identical with the fluid egress point diameter with the fluid intake diameter respectively by the diameter of direction along fluid.
As preferably, in described optical window pedestal, optical window right side, described right side also is provided with right side optical window holder, the indentation and be resisted against described right side optical window in the described optical window pedestal of described right side optical window holder, optical window holder center, described right side has the through hole for sheathed described fibre bundle solid zoarium.
As preferably, be provided with guide finger between described optical window pedestal and the described fibre bundle solid zoarium, described guide finger is resisted against on described optical window pedestal and the described fibre bundle solid zoarium.
As preferably, be provided with the ring of going forward side by side outside the described optical window pedestal right side, the described ring of going forward side by side is resisted against described optical window pedestal and some extend among the described optical window pedestal; The described ring center of going forward side by side has the through hole for sheathed described fibre bundle solid zoarium.
As preferably, the described ring of going forward side by side extend between the part and described fibre bundle solid zoarium among the described optical window pedestal, is arranged with elastomeric element on described fibre bundle solid zoarium.
As preferably, described elastomeric element is the butterfly spring.
As preferably, be arranged with spacer shell on the described fibre bundle solid zoarium periphery, the described ring of going forward side by side utilizes described spacer shell and the socket of described fibre bundle solid zoarium.
As preferably, described spacer shell is high temperature resistant protective sleeve.
As preferably, described fluid intake, described fluid egress point and described fluid are provided with crossover sub by the junction of device, and described crossover sub has the exposed end that is connected for external unit.
As preferably, has the cavity for the installing fibre bundle in the described fibre bundle solid zoarium.
The beneficial effect of underground fluid spectral analysis device provided by the invention is:
The diameter of the fluid passage of underground fluid spectral analysis device provided by the invention is identical, does not make fluid that the space of stagnating occurs, and does not have build up of fluid in the fluid passage, thereby guarantees the accuracy that component is measured in real time in the fluid.
Description of drawings
Fig. 1 is that publication number is the inner structure cross-sectional schematic of the disclosed a kind of high-temperature, high pressure fluid ingredient analytical sensor of Chinese patent of CN 1740771 A;
The inner structure cross-sectional schematic of the underground fluid spectral analysis device that Fig. 2 provides for the embodiment of the invention;
The structural representation of the fluid passage of the underground fluid spectral analysis device that Fig. 3 provides for the embodiment of the invention;
The principle of work schematic diagram of the underground fluid spectral analysis device that Fig. 4 provides for the embodiment of the invention;
The absorption spectra line chart of each component in the one group of downhole fluid that obtains after the application underground fluid spectral analysis device provided by the invention that Fig. 5 provides for the embodiment of the invention is analyzed downhole fluid.
Embodiment
In order to understand the present invention in depth, the present invention is described in detail below in conjunction with drawings and the specific embodiments.
Referring to accompanying drawing 2 and accompanying drawing 3, underground fluid spectral analysis device provided by the invention comprises that optical window pedestal 15, left side optical window 19, right side optical window 16, fluid are by device and fibre bundle solid zoarium 9; One end of fibre bundle solid zoarium 9 is resisted against on the right side optical window 16, and the other end of fibre bundle solid zoarium 9 is protruding in the right side of optical window pedestal 15; Fluid places optical window pedestal 15 by device card, between left side optical window 19 and the right side optical window 16, fluid is provided with the fluid passage by device, be connected with fluid intake 22 and fluid egress point 23 on the fluid passage, the fluid passage is identical along the a-b-c orient diameter, and, the diameter of this fluid passage is also identical with fluid egress point 23 diameters with fluid intake 22 diameters respectively, opening part on the fluid passage is provided with obstruction 5 and plug 25, obstruction 5 is provided with O-ring seal with contacted end, fluid passage, reveal from stopping up 5 to avoid fluid, fluid intake 22 and fluid egress point 23 are respectively equipped with crossover sub 17 with fluid by the device junction, be provided with O-ring seal on crossover sub 17 and the end face that optical window pedestal 15 contacts, crossover sub 17 has the exposed end that is connected for external unit, be provided with O-ring seal on exposed end and the end face that external unit contacts, to avoid fluid to reveal from fluid intake 22 and/or fluid egress point 23, guarantee that further fluid passes through in order along the a-b-c direction.Because the diameter of this fluid passage is identical, and the diameter of this fluid passage is also identical with fluid egress point 23 diameters with fluid intake 22 diameters respectively, does not make fluid that the space of stagnating occurs, do not have build up of fluid in the fluid passage, thereby guarantee the accuracy that component is measured in real time in the fluid.
Wherein, in optical window pedestal 15, optical window 16 right sides in right side also are provided with right side optical window holder 13, right side optical window holder 13 indentation and be resisted against right side optical window 16 in the optical window pedestal 15, optical window holder 13 centers, right side have the through hole for sheathed fibre bundle solid zoarium 9.Right side optical window holder 13 and left side optical window holder 26 are provided with respectively axially and two seals circle radially, axial sealing ring be separately positioned on the contacted end face of optical window on, radial direction seal ring be separately positioned on optical window pedestal 15 contacted end faces on, thereby, when having guaranteed that fluid passes through the fluid passage along the a-b-c direction, be completely sealed in the fluid passage, be unlikely to leak.
Wherein, have the cavity 21 for the installing fibre bundle in the fibre bundle solid zoarium 9, during use, be equiped with fibre bundle in the cavity 21, the optical fiber of drawing from the cavity 21 of fibre bundle solid zoarium 9 need not bend and can enter in the detector, thereby avoids the fiber strength loss.
Wherein, be provided with guide finger 12 between optical window pedestal 15 and the fibre bundle solid zoarium 9, guide finger 12 is resisted against on optical window pedestal 15 and the fibre bundle solid zoarium 9, arranging the fibre bundle that the cross section is the rectangle of 3mm * 8mm on fibre bundle solid zoarium 9 and the end face that right side optical window 16 contacts, just in time the printing opacity shape with fluid passage a is consistent, and the light that light source is sent is fully absorbed by fibre bundle.
Wherein, the outside, optical window pedestal 15 right sides is provided with the ring 10 of going forward side by side, and the ring 10 of going forward side by side is resisted against optical window pedestal 15 and some extend among the optical window pedestal 15; Ring 10 centers of going forward side by side have through hole for sheathed fibre bundle solid zoarium 9.Wherein, the ring 10 of going forward side by side extend between the part and fibre bundle solid zoarium 9 among the optical window pedestal, on fibre bundle solid zoarium 9, be arranged with elastomeric element, elastomeric element can be butterfly spring 11, when the ring 10 of going forward side by side is screwed into certain position in the optical window pedestal 15, butterfly spring 10 produces deformation, and a power that is produced by 10 deformation of butterfly spring passes on the right shoulder of fibre bundle solid zoarium 9, thereby, the ring 10 of going forward side by side utilizes butterfly spring 11 that the fibre bundle of fibre bundle solid zoarium 9 is arranged end face and is pressed on the right side optical window 16, has guaranteed the low-loss of light transmission.Wherein, be arranged with spacer shell 8 on fibre bundle solid zoarium 9 peripheries; the ring 10 of going forward side by side utilizes high temperature resistant protection spacer shell 8 and 9 sockets of fibre bundle solid zoarium; so that underground fluid spectral analysis device provided by the invention can tolerate the high temperature more than 200 ℃, and pass the light rate when guaranteeing that temperature reaches 160 ℃ and can not change.
When using underground fluid spectral analysis device provided by the invention, this assembly axis is on the pedestal that is installed in spectral analysis module, two crossover subs 17 are two docking ports on the alignment light analysis of spectrum module pedestals respectively, firmly are pressed into mouth, with screw this device are fixed on the spectral analysis module again.Tungsten halogen lamp 20 is connected in the charger of spectral analysis module.
The principle of work of underground fluid spectral analysis device provided by the invention is as follows:
Referring to accompanying drawing 3, downhole fluid enters the fluid passage from fluid intake 22 in real time, and afterwards, downhole fluid along the path flow of a-b-c, flows out from the fluid passage through fluid passage outlet 23 in the fluid passage.Referring to accompanying drawing 4, in said process, the light of tungsten halogen lamp 20 emissions converges at left side optical window 19 through converging light cone 24, light is behind the fluid passage, be transmitted through right side optical window 16, utilize the fibre bundle of cavity 21 interior installings, divide 10 optical filters to accept, the corresponding detector of each optical filter, totally 10 detectors, form 10 and detect channel, the mid-photodiode that is provided with of detector, for detection of seeing through fluid passage light signal afterwards, light signal is electric signal through the photoelectric switching circuit module converts, electric signal enters Single Chip Microcomputer (SCM) system through surveying amplifying circuit and A/D modular converter, the model of reflection correlationship (being generally linear relationship) between lower fluid composition and its near-infrared absorption spectrum that single-chip microcomputer has wherein been set up the signal data substitution that obtains.Because the wavelength that the absorption peak of each component is corresponding in the downhole fluid is different, and, light through the fluid passage after, the absorbance of each component is different, thereby can access the absorption line of each component in the downhole fluid, and then single-chip microcomputer carries out qualitative and quantitative analysis by calculating to each component in the downhole fluid.
According to lambert--Beer law, namely to the monochromatic light of certain wavelength, the absorbance A of component and light path in the fluid
, concentration of component C is directly proportional, be directly proportional with the absorptivity ε of component.Namely
Wherein, A is defined as absorbance;
ε is defined as the absorptivity of component, and generally speaking, absorptivity is relevant with constitutive property in monochromatic wavelength and the fluid, and light intensity is irrelevant, and what ε reflected is the essential attribute of material;
C is defined as concentration of component;
I is defined as transmitted intensity;
I
0Be defined as incident intensity.
Thus, according to Lambert-Beer's law, the absorbance of component is directly proportional with the concentration of component in the downhole fluid.
Generally, downhole fluid is oil water mixture, when using underground fluid spectral analysis device provided by the invention downhole fluid being analyzed, can place optical filter at corresponding wave band according to the wavelength that the component absorption peak is corresponding in the fluid, and the photodiode that arranges in the utilization detector corresponding with optical filter detects absorbance, thereby, can use the ratio that above-mentioned formula is learnt each component in the downhole fluid.
Because when using underground fluid spectral analysis device provided by the invention, downhole fluid is to enter the fluid passage from fluid intake 22 in real time, afterwards, downhole fluid path along a-b-c in the fluid passage is passed through in order, flow out from the fluid passage through fluid passage outlet 23, so underground fluid spectral analysis device provided by the invention can guarantee the accuracy that fluid is measured in real time.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a underground fluid spectral analysis device comprises that optical window pedestal, left side optical window, right side optical window, fluid are by device and fibre bundle solid zoarium; One end of described fibre bundle solid zoarium is resisted against on the optical window of described right side, and the other end of described fibre bundle solid zoarium is protruding in the right side of described optical window pedestal; Described fluid places described optical window pedestal by device card, between left side optical window and the right side optical window, described fluid is provided with the fluid passage by device, be connected with fluid intake and fluid egress point on the described fluid passage, described fluid passage is identical by orient diameter along fluid, and described fluid passage is also identical with the fluid egress point diameter with the fluid intake diameter respectively by the diameter of direction along fluid; In described optical window pedestal, optical window right side, described right side also is provided with right side optical window holder, the indentation and be resisted against described right side optical window in the described optical window pedestal of described right side optical window holder, optical window holder center, described right side has the through hole for sheathed described fibre bundle solid zoarium; It is characterized in that,
The outside, described optical window pedestal right side is provided with the ring of going forward side by side, and the described ring of going forward side by side is resisted against described optical window pedestal and some extend among the described optical window pedestal; The described ring center of going forward side by side has the through hole for sheathed described fibre bundle solid zoarium; The described ring of going forward side by side extend between the part and described fibre bundle solid zoarium among the described optical window pedestal, is arranged with elastomeric element on described fibre bundle solid zoarium.
2. device according to claim 1 is characterized in that, is provided with guide finger between described optical window pedestal and the described fibre bundle solid zoarium, and described guide finger is resisted against on described optical window pedestal and the described fibre bundle solid zoarium.
3. device according to claim 1 is characterized in that, described elastomeric element is the butterfly spring.
4. device according to claim 1 is characterized in that, is arranged with spacer shell on the described fibre bundle solid zoarium periphery, and the described ring of going forward side by side utilizes described spacer shell and the socket of described fibre bundle solid zoarium.
5. device according to claim 4 is characterized in that, described spacer shell is high temperature resistant protective sleeve.
6. device according to claim 1 is characterized in that, described fluid intake, described fluid egress point and described fluid are provided with crossover sub by the junction of device, and described crossover sub has the exposed end that is connected for external unit.
7. device according to claim 1 is characterized in that, has the cavity for the installing fibre bundle in the described fibre bundle solid zoarium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110211983 CN102288576B (en) | 2011-07-27 | 2011-07-27 | Underground fluid spectral analysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110211983 CN102288576B (en) | 2011-07-27 | 2011-07-27 | Underground fluid spectral analysis device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102288576A CN102288576A (en) | 2011-12-21 |
| CN102288576B true CN102288576B (en) | 2013-05-01 |
Family
ID=45335173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110211983 Active CN102288576B (en) | 2011-07-27 | 2011-07-27 | Underground fluid spectral analysis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102288576B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489915A (en) * | 2018-02-13 | 2018-09-04 | 中国海洋石油集团有限公司 | A kind of fluid measurement optical system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101375141A (en) * | 2006-01-26 | 2009-02-25 | 普拉德研究及开发股份有限公司 | Method and apparatus for calibrated downhole spectral analysis of fluids |
| CN202152681U (en) * | 2011-07-27 | 2012-02-29 | 中国石油天然气集团公司 | Underground fluid spectrum analyzing device |
-
2011
- 2011-07-27 CN CN 201110211983 patent/CN102288576B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101375141A (en) * | 2006-01-26 | 2009-02-25 | 普拉德研究及开发股份有限公司 | Method and apparatus for calibrated downhole spectral analysis of fluids |
| CN202152681U (en) * | 2011-07-27 | 2012-02-29 | 中国石油天然气集团公司 | Underground fluid spectrum analyzing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102288576A (en) | 2011-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100371710C (en) | Portable liquid-phase chromatograph | |
| CN102749286B (en) | Novel portable gas normal position monitor of flue gas and pipeline gas | |
| CN202372439U (en) | Online crude oil water content detector employing infrared image photometry | |
| CN203479697U (en) | Non-dispersive infrared detector | |
| CN201876411U (en) | Long-optical path air chamber device | |
| CN202152681U (en) | Underground fluid spectrum analyzing device | |
| CN104483282A (en) | Self-calibration gas chamber and optical fiber gas sensor detection system | |
| CN104266971A (en) | In-situ calibration device and method for online detection of pipeline gas | |
| CN202599877U (en) | Multichannel wavelength dispersion fluorescence spectrophotometer | |
| CN104048916A (en) | Flow cell | |
| CN203069501U (en) | Portable blade spectrum detection device | |
| CN102288576B (en) | Underground fluid spectral analysis device | |
| CN101393121B (en) | Methane gas concentration sensor air chamber based on infrared absorption principle | |
| CN206420761U (en) | A kind of high performance gas absorption cell | |
| CN204346907U (en) | A kind of self calibration air chamber and fiber gas sensor detection system | |
| CN203643334U (en) | Portable spectrophotometer for carrying out site test of transmittance and reflectivity of glass | |
| CN103487409A (en) | Optical fiber sampler for detecting spectral transmittance and absorptivity of liquid and gas | |
| CN207147951U (en) | A kind of absorption cell for gas detection | |
| CN217237735U (en) | Gas measurement air chamber and analyzer | |
| CN205844193U (en) | Oil sensor in contactless water | |
| CN106053418B (en) | Oil sensor in contactless water | |
| CN202649105U (en) | Dual-light path light splitting detection system | |
| CN207366440U (en) | Gas detection data analysis system | |
| CN207096105U (en) | A kind of water quality on-line detecting system | |
| CN211576937U (en) | Specific gas multi-position detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |