CN204116253U - A kind of double detector XRF well logging inserting tube - Google Patents
A kind of double detector XRF well logging inserting tube Download PDFInfo
- Publication number
- CN204116253U CN204116253U CN201420376813.6U CN201420376813U CN204116253U CN 204116253 U CN204116253 U CN 204116253U CN 201420376813 U CN201420376813 U CN 201420376813U CN 204116253 U CN204116253 U CN 204116253U
- Authority
- CN
- China
- Prior art keywords
- detector
- light pipe
- well logging
- double
- collimating apparatus
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of double detector XRF well logging inserting tube, mainly comprise detection window and excite detection system, described detection window comprises light pipe collimating apparatus, D1 collimating apparatus, D2 collimating apparatus, beryllium window, light pipe S, detector D1 and detector D2 and forms, light pipe S, detector D1 and detector D2 composition excites detection system, light pipe S is connected with working power, and detector D1 with D2 is independent to be connected with controller, interface circuit, surface work station successively with amplifier, digitizing multichannel pulse scope-analyzer, double channel data acquisition.The utility model solves and utilizes the problem that in the X ray excited fluorologging of X-ray tube, well liquid corrects, and improves the radsafe of XRF well logging inserting tube.
Description
Technical field
The utility model belongs to geologic prospect technical field, relates to a kind of double detector XRF well logging inserting tube.
Background technology
In XRF well logging, well liquid has for the characteristic X-ray that object element in the initial ray of excitaton source and the borehole wall produces and absorbs and the effect of scattering, and the gamma ray absorption coefficient difference to different-energy.Well liquid, to the absorption of initial ray and characteristic X-ray, reduces the counting rate of object element characteristic x-ray fluorescence; And the scattering process of high-octane ray (being greater than object element characteristic X-ray energies), add the scattering background measuring spectral line, thus add characteristic X-ray full peak counting rate in instrument spectrum.Therefore, in well logging, the existence due to well liquid changes linear with between object element content of characteristic X-ray, adds the error of XRF well logging object element content.
In the XRF well logging that isotope source excites, the impact of well liquid is corrected and solve from two aspects.Be on the one hand on the hardware of XRF well logging inserting tube, adopt borehole wall contact device to reduce the well liquid thickness between detecting window and the borehole wall as far as possible.On the other hand, adopt mathematical method to carry out the correction of well liquid, improve the degree of accuracy of object element content measurement in XRF well logging.The well liquid updating formulas (CBWE) of having derived such as Wu Yue, Lin Yufei, white clouds are raw, and good effect is achieved in simulation boring; The people such as Ge Liangquan, spring Thursday propose the well hydraulic calibration based on scattering peak, and Y411 type XRF well logger is used.Above research is all launch based on proportional counter, and be limited to the energy resolution of detector, its calibration accuracy is poor.The Eleventh Five-Year Plan period, Y421 type X-fluorescence well logger has also been carried out the Primary Study of well hydraulic calibration, the people such as Ren Xiang, Ge Liangquan, Zhang Qingxian adopt the feature backscattering peak of excitaton source to calculate well liquid thickness and correct the characteristic X-ray counting rate measuring element, achieve good calibration result.
X ray light pipe is XRF excitaton source conventional at present, is also the first-selected excitaton source of XRF well logging from now on.Well hydraulic calibration research for the X ray excited fluorologging of X ray light pipe does not also have relevant report at present.Different from radio-isotope source, the spectral line that X ray light pipe exports is continuous spectrum, in XRF logging instrumentation spectrum, feature backscattering peak is not obvious, therefore based on the well hydraulic calibration of backscattering, can not use in the XRF well logging of X ray light pipe as excitaton source, the well liquid of the XRF well logging needing research to excite for X ray light pipe corrects new method.
Utility model content
In order to overcome the defect existed in prior art, the utility model provides a kind of double detector XRF well logging inserting tube, by data processing, effectively can correct the impact of well liquid on measurement result, improves degree of accuracy and the practicality of XRF well logging.Its technical scheme is as follows:
A kind of double detector XRF well logging inserting tube, mainly comprise detection window and excite detection system, described detection window comprises light pipe collimating apparatus, D1 collimating apparatus, D2 collimating apparatus, beryllium window, light pipe S, detector D1 and detector D2 and forms, light pipe S, detector D1 and detector D2 composition excites detection system, light pipe S is connected with working power, and detector D1 with D2 is independent to be connected with controller, interface circuit, surface work station successively with amplifier, digitizing multichannel pulse scope-analyzer, double channel data acquisition.Realized the synchronous and data acquisition of detector D1 and detector D2 by double channel data acquisition and controller, and control light pipe S and work.The modal data collected transfers to surface work station by interface circuit.
Further preferably, detector D1, detector D2 and light pipe S central axis intersect at a point O, and detector D1 and detector D2 to O point is equidistant, light pipe S and tube wall at 45 °, detector D1 and tube wall in 90 °, detector D2 becomes 30 ° with tube wall.
Further preferably, detector D1 and detector D2 adopts Si-PIN electricity refrigeration detector.
The beneficial effects of the utility model are:
1. the utility model solves and utilizes the problem that in the X ray excited fluorologging of X-ray tube, well liquid corrects, and improves the radsafe of XRF well logging inserting tube.
2. adopt double detector to carry out spectral line collection, and measurement spectral line is analyzed, calculate well liquid thickness, and carry out the correction of well liquid to measuring the constituent content obtained, improve the accuracy of XRF well logging.
Accompanying drawing explanation
Fig. 1 is XRF well logging inserting tube functional area figure;
Fig. 2 is XRF well logging double detector mechanical construction drawing, and S is miniature X ray pipe; D1 is Si-PIN detector 1; D2 is Si-PIN detector 2;
Fig. 3 is double detector X-fluorescence well logging inserting tube Nuclear signal processing and data acquisition structural drawing.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in more detail.
With reference to Fig. 1-Fig. 3, a kind of double detector XRF well logging inserting tube, mainly comprise detection window and excite detection system, described detection window comprises light pipe collimating apparatus, D1 collimating apparatus, D2 collimating apparatus, beryllium window, light pipe S, detector D1 and detector D2 and forms, light pipe S, detector D1 and detector D2 composition excites detection system, light pipe S is connected with working power, and detector D1 with D2 is independent to be connected with controller, interface circuit, surface work station successively with amplifier, digitizing multichannel pulse scope-analyzer, double channel data acquisition.Realized the synchronous and data acquisition of detector D1 and detector D2 by double channel data acquisition and controller, and control light pipe S and work.The modal data collected transfers to surface work station by interface circuit.
Detector D1, detector D2 and light pipe S central axis intersect at a point O, and detector D1 and detector D2 to O puts equidistant, light pipe S and tube wall at 45 °, detector D1 and tube wall in 90 °, detector D2 becomes 30 ° of described collimating apparatuss by making of pure aluminum with tube wall.Detector D1 and detector D2 adopts Si-PIN electricity refrigeration detector.
The main technological route of the design: in the utility model, double detector X-fluorescence well logging inserting tube is by light pipe s, detector D1, detector D2, digitizing multichannel pulse scope-analyzer, double channel data acquisition and the main city such as controller, beryllium window.Inserting tube wall adopts the processing of glass hard steel structure, can in dark underground work.Inserting tube adopt Be material make beryllium window.The X ray that excitaton source produces incides on the borehole wall by beryllium window, the X ray produced is gathered by detector D1 and detector D2 simultaneously, respectively by amplifier, digital signal is converted into by multichannel pulse scope-analyzer, and collected by double channel data acquisition and controller, be transferred to surface work station by interface circuit.
In log interpretation workstation, by analysis software, the spectral line gathered is processed, extract the well liquid thickness information measured in spectral line.Simultaneously by measuring spectrum analysis, being converted into constituent content by measuring the characteristic peak area of nucleic, and carrying out well liquid thickness correction, to obtain measuring in the borehole wall radionuclide content information accurately.
As Fig. 2, based on the X ray that light pipe S in double detector X-fluorescence well logging inserting tube produces, be parallel beam by light pipe collimating device collimation, the length of collimating apparatus is 3cm.Beam after collimation is penetrated on working fluid and the borehole wall by Be window.Incident ray excites the atom in the borehole wall, produces characteristic X-ray.Characteristic X-ray enters detector D1 and detector D2 by Be window and collimating apparatus D1, collimating apparatus D2.The central axis junction of light pipe collimating apparatus, D1 collimating apparatus and collimating apparatus D2 is to same point, and detector D1 is identical with the distance of junction point with detector D2, ensure detector D1, detector D2 to measurement point to open solid angle identical.For preventing collimator material from producing characteristic X-ray, and then affecting measurement result, selecting the aluminum of low impurity or organic glass to make.
The operating circuit of instrument as represented in fig. 3.The electric signal produced by detector D1, detector D2 is converted into digital signal by amplifier, digitizing multichannel pulse scope-analyzer, data acquisition and accumulation is carried out by double channel data acquisition and controller, be converted into XRF instrument spectrum, transfer to surface work station by interface circuit.In the instrument course of work, there is the work of double channel data acquisition 2 detectors synchronous with controller, guarantee that data are measured at same point simultaneously.
The above; be only the utility model preferably embodiment; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen in protection domain of the present utility model.
Claims (4)
1. a double detector XRF well logging inserting tube, it is characterized in that, mainly comprise detection window and excite detection system, described detection window comprises light pipe collimating apparatus, D1 collimating apparatus, D2 collimating apparatus, beryllium window, light pipe S, detector D1 and detector D2 and forms, light pipe S, detector D1 and detector D2 composition excites detection system, light pipe S is connected with working power, and detector D1 with D2 is independent to be connected with controller, interface circuit, surface work station successively with amplifier, digitizing multichannel pulse scope-analyzer, double channel data acquisition.
2. double detector XRF well logging inserting tube according to claim 1, it is characterized in that, detector D1, detector D2 and light pipe S central axis intersect at a point O, and detector D1 and detector D2 to O puts equidistant, light pipe S and tube wall at 45 °, detector D1 and tube wall in 90 °, detector D2 becomes 30 ° with tube wall.
3. double detector XRF well logging inserting tube according to claim 1, it is characterized in that, described collimating apparatus is by making of pure aluminum.
4. double detector XRF well logging inserting tube according to claim 1, is characterized in that, detector D1 and detector D2 adopts Si-PIN electricity refrigeration detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376813.6U CN204116253U (en) | 2014-07-08 | 2014-07-08 | A kind of double detector XRF well logging inserting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376813.6U CN204116253U (en) | 2014-07-08 | 2014-07-08 | A kind of double detector XRF well logging inserting tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204116253U true CN204116253U (en) | 2015-01-21 |
Family
ID=52333550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420376813.6U Expired - Fee Related CN204116253U (en) | 2014-07-08 | 2014-07-08 | A kind of double detector XRF well logging inserting tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204116253U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111482A (en) * | 2014-07-08 | 2014-10-22 | 成都理工大学 | Double-detector X-ray fluorescence logging probe tube and method |
| CN107589130A (en) * | 2017-09-05 | 2018-01-16 | 成都理工大学 | The X-fluorescence measurement of seabed original position influences monitoring and managing method and device |
-
2014
- 2014-07-08 CN CN201420376813.6U patent/CN204116253U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111482A (en) * | 2014-07-08 | 2014-10-22 | 成都理工大学 | Double-detector X-ray fluorescence logging probe tube and method |
| CN104111482B (en) * | 2014-07-08 | 2017-01-18 | 成都理工大学 | Double-detector X-ray fluorescence logging probe tube and data processing method thereof |
| CN107589130A (en) * | 2017-09-05 | 2018-01-16 | 成都理工大学 | The X-fluorescence measurement of seabed original position influences monitoring and managing method and device |
| CN107589130B (en) * | 2017-09-05 | 2020-05-29 | 成都理工大学 | Method and device for monitoring influence of submarine in-situ X fluorescence measurement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103837558B (en) | Multielement composition and content detection device and detection method in a kind of aqueous solution based on PGNAA technology | |
| CN104536056B (en) | Small-bore gamma spectrometry log device and data acquisition transmission and from steady method | |
| CN102608649B (en) | Statistics distributed gamma or X ray energy spectrum unscrambling method | |
| CN102621588B (en) | Gamma energy spectrum-based method for identifying clay shale reservoir and uranium ore occurrence on spot | |
| CN105510956A (en) | Anti-Compton scattering detector | |
| CN111045072B (en) | Be applicable to CeBr 3 Gamma energy spectrum iteration spectrum solving method of detector | |
| CN101858985A (en) | Multifunctional rare earth product radioactivity detecting instrument based on composite detector | |
| CN104111482A (en) | Double-detector X-ray fluorescence logging probe tube and method | |
| CN104570047A (en) | Self-spectrum-stabilizing device and method of gamma spectrometry tool | |
| CN204116253U (en) | A kind of double detector XRF well logging inserting tube | |
| CN111913205A (en) | Nuclear emergency multifunctional portable radiation monitoring system and monitoring method | |
| CN105545284A (en) | While-drilling gamma imaging data processing method | |
| Alnour et al. | New approach for calibration the efficiency of HpGe detectors | |
| CN103091701A (en) | Multipurpose flight time equipment for measuring quality of cold neutron beam | |
| CN102094639A (en) | Method for correcting natural gamma ray spectral logging of barite mud well | |
| CN205176286U (en) | Anti - compton scatter detector | |
| Demir et al. | Studying of characteristics of the HPGe detector for radioactivity measurements | |
| Gonzalez | Measuring the muon content of air showers with IceTop | |
| Lefebvre et al. | Full range determination of 222Rn at the watershed scale by liquid scintillation counting | |
| CN102621170A (en) | Method for automatically determining measurement time in detection of energy spectrometer | |
| CN212515056U (en) | Nuclear emergency multifunctional portable radiation monitoring system | |
| CN202256719U (en) | Elemental capture gamma energy spectrum measurement device based on Am-Be neutron source | |
| CN201730614U (en) | Wired MWD gamma energy spectrum log tool | |
| CN102661960B (en) | <220>Rn measurement method and device based on time spectrum analysis | |
| CN103698798B (en) | β surface contamination position resolution measuring method |
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: 20150121 Termination date: 20150708 |
|
| EXPY | Termination of patent right or utility model |