CN105866155B - A kind of x-ray fluorescence well logging inserting tube for detecting deep well - Google Patents
A kind of x-ray fluorescence well logging inserting tube for detecting deep well Download PDFInfo
- Publication number
- CN105866155B CN105866155B CN201610220817.9A CN201610220817A CN105866155B CN 105866155 B CN105866155 B CN 105866155B CN 201610220817 A CN201610220817 A CN 201610220817A CN 105866155 B CN105866155 B CN 105866155B
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- Prior art keywords
- ray fluorescence
- detector
- well
- inserting tube
- tube
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
- G01V5/04—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
- G01V5/08—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
- G01V5/12—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using gamma or X-ray sources
Abstract
The present invention provides a kind of x-ray fluorescence well logging inserting tubes for detecting deep well, including：Excitaton source (4), detector, core pulse signal processing circuit, power circuit, communicating circuit and the cooling device being set in tube body (1) offer detection window (2) on the tube body (1)；Detector is sealed in tube body (1) by the cooling device, and drives its cooled detector by power circuit.The inserting tube of the present invention can realize that x-ray fluorescence is logged well under high temperature, hyperbaric environment, borehole wall constituent content directly be measured, to be suitably applied in the geologic prospect in field by using simple electric refrigeration structure；And the apparatus structure that the inserting tube is realized is simple, by the way that cooling device is integrated in tubular body, reduces the space of inserting tube, can be used in small-bore well logging, meet the needs of mineral exploration.
Description
Technical field
The present invention relates to detecting deep well technical fields, and in particular to a kind of x-ray fluorescence for detecting deep well, which is logged well, to be visited
Pipe.
Background technology
X-ray fluorescence well logging is a kind of analytical technology directly measuring borehole wall constituent content in underground, is the important of well logging
Component part.
X-ray fluorescence well logging inserting tube is to transfer to target depth, excitaton source (X-ray light pipe or isotope by logging winch
Excitaton source) primary ray is radiated, so that the atom of the borehole wall is excited.During de excitation, the feature X for generating element is penetrated atom
Line, the detector detection being tested in exploratory shaft sinking pipe, is converted into after electric signal by core pulse signal processing of circuit, and be converted into digital letter
Add up after number as x-ray fluorescence power spectrum.And compared to shallow well measure, deep-well measurement in, residing for pressure, operating temperature pair
More stringent requirements are proposed for equipment.It can resist high pressure, the x-ray fluorescence of high temperature to realize to need to make in deep borehole measurement
Well logging inserting tube.
For high temperature problem, at present frequently be passive and active both of which.So-called Passive Mode is using true
Empty vacuum flask is realized.Vacuum flask is made of multilayer, and inside is evacuated so that vacuum flask content is temperature-resistant or slow liter
Height, but this technology is not suitable for x-ray fluorescence well logging, reason is：(1) since the energy of X-ray is relatively low, to medium
Penetration capacity is poor, it is therefore desirable to make detection window.And the presence of detection window, heat insulation effect will be influenced；(2) X-ray is visited
It surveys device and needs high energy resolution, use Si-PIN or SDD detectors at present, need to work at a constant temperature, and it is real in vacuum flask
Border temperature gradually rises, therefore influences detector work.
So-called aggressive mode is to reduce high temperature using refrigeration equipment to influence, such as：Well logging system has been made using electric cooling piece
Device for cooling (the patent No.：202853191 U of CN) and Schlumberger Overseas S. A. design Stirling cooling system (specially
Profit number：CN1641185A underground work temperature requirements) can be reached.But apparatus above size, power consumption are big, are not suitable for small
Bore is logged well, and its is complicated, and manufacturing cost is high.
Invention content
It is an object of the present invention to cannot be satisfied detecting deep well ring to solve above-mentioned existing x-ray fluorescence well logging inserting tube
The technical issues of border requires provides a kind of x-ray fluorescence well logging inserting tube for detecting deep well, and the inserting tube is using actively cooling
Formula structure, diameter are less than 60mm, 100 degrees Celsius can be operated in, in the deep-well environment of 50Mpa pressure, to realize that deep-well is visited
The elemental analysis of survey.
To achieve the above object, a kind of x-ray fluorescence well logging inserting tube for detecting deep well provided by the invention, including：
Excitaton source, detector, core pulse signal processing circuit, power circuit, communicating circuit and the cooling device being set in tube body, institute
Detection window is offered on the tube body stated；The detector is used to acquire excites the X-ray generated after the borehole wall by excitaton source, and
It is converted into core pulse signal, it, will after core pulse signal is carried out the processing of impulse amplitude by the core pulse signal processing circuit
The digital signal of generation is accumulative to form x-ray fluorescence spectral line, and the communicating circuit is used to be transferred to ground by x-ray fluorescence spectral line
Face work station, the power circuit provide the working power needed for each section, the cooling in x-ray fluorescence well logging inserting tube
Detector is sealed in tube body by device, and drives its cooled detector by power circuit.
As a further improvement of the above technical scheme, the cooling device includes：Cold finger, electric cooling piece, conduction copper
Piece and radiator；The front end of the cold finger by equipped with floor installation detector, the electric cooling piece is set to conduction copper
Between piece and cold finger, which is driven by power circuit, to reduce cold finger temperature and transmit the heat generated through detector
Amount, the bottom of the heat conduction copper sheet are connect with radiator, and the thermal energy for generating electric cooling piece is transferred to radiator, and passes through
The radiator outwardly radiates, and detector is sealed in tube body by the radiator.
As a further improvement of the above technical scheme, the cold finger is all made of thermal insulation with detector exposure outer surface
Material is thermally isolated.
As a further improvement of the above technical scheme, the cold finger by equipped with temperature sensor monitors obtain it is cold
The temperature data of finger, the power circuit control to adjust the output power of electric cooling piece by the temperature data.
As a further improvement of the above technical scheme, the cold finger, heat conduction copper sheet and radiator are all made of high-purity
Copper product be made.
As a further improvement of the above technical scheme, the detector is detected using Si-PIN detectors or SDD
Device.The X-ray that excitaton source generates is incident on by window on the borehole wall, and the X-ray of generation is by Si-PIN detectors or SDD detectors
Acquisition, both detector energy high resolutions are suitable for the measurement of situ downhole multielement.
As a further improvement of the above technical scheme, the detection window is constituted using the beryllium material of high-purity.
As a further improvement of the above technical scheme, the tube body is made of titanium steel material.Inserting tube uses titanium steel
Structure is processed, and the high pressure under deep-well can be born.
In order to make detector work at a suitable temperature, freezed to detector using electric cooling piece in inserting tube
Processing keeps detector to work in 50 DEG C of environment below, to ensure that instrument has good energy resolution.
A kind of x-ray fluorescence well logging inserting tube advantage for detecting deep well of the present invention is：
The inserting tube of the present invention can realize that X is penetrated by using simple electric refrigeration structure under high temperature, hyperbaric environment
Line fluorologging directly measures borehole wall constituent content, to be suitably applied in the geologic prospect in field；And the inserting tube is realized
Apparatus structure it is simple, by the way that cooling device is integrated in tubular body, reduce the space of inserting tube, can be small-bore
It is used in well logging, meets the needs of mineral exploration.
Description of the drawings
Fig. 1 is a kind of x-ray fluorescence well logging inserting tube structural schematic diagram for detecting deep well in the embodiment of the present invention.
Fig. 2 is the cooling device structural schematic diagram in the embodiment of the present invention.
1, tube body 2, detection window
3, radiator 4, excitaton source
5, temperature sensor
Specific implementation mode
With reference to the accompanying drawings and examples to a kind of x-ray fluorescence well logging inserting tube for detecting deep well of the present invention
It is described in detail.
The inserting tube as shown in Figure 1, a kind of x-ray fluorescence for detecting deep well of the present invention is logged well, including：It is set to tube body
Detector, core pulse signal processing circuit, power circuit, communicating circuit in 1 and cooling device (not shown), further include Fig. 2
Shown in excitaton source 4.Detection window 2 is offered on the tube body 1；The detector is excited for acquiring by excitaton source 4
The X-ray generated after the borehole wall, and it is converted into core pulse signal, high-temperature device system can be used in the core pulse signal processing circuit
Make, after carrying out impulse amplitude processing and ADC conversions to core pulse signal, the digital signal of generation is arranged on the circuit
Fpga chip on realize the extraction of impulse amplitude, and accumulative form x-ray fluorescence spectral line.The x-ray fluorescence spectral line by
Communicating circuit passes ground back by logging cable, carries out data acquisition and processing (DAP) by ground station, and be converted into constituent content.
The power circuit is used to power for x-ray fluorescence well logging inserting tube, and detector is sealed in tube body 1 by the cooling device
It is interior, and its cooled detector is driven by power circuit.
As shown in Fig. 2, in the present embodiment, the cooling device may include：Cold finger, electric cooling piece, heat conduction copper sheet and
Radiator 3；The hot junction of the electricity cooling piece is in close contact with heat conduction copper sheet, and heat conductive silica gel bonding, the electricity system can be used in contact surface
Cold cold end is in close contact with cold finger, and heat conductive silica gel bonding can also be used in contact surface.Electric cooling piece is driven by power circuit,
To reduce cold finger temperature and transmit the heat generated through detector.The bottom of the heat conduction copper sheet is connect with radiator 3, and being used for will
The heat that electric cooling piece generates is transferred to by heat conduction copper sheet in radiator.Radiator can be made of high-purity copper, and detector is close
It is encapsulated in tube body 1, and is in close contact with well liquid, to take away heat by well liquid.The heat conduction copper sheet and radiator can be by
The copper wire of monoblock is cut, to have good thermal conductivity.
During the work time, since the temperature in electric cooling piece hot junction is higher than the temperature of well liquid, electric cooling piece needs are adopted
With high temperature modification electricity cooling piece, need heatproof at 135 DEG C or more.The power of electric cooling piece is controlled by power circuit, power circuit from
Incoming transport electricity in logging cable, and it is converted into direct current.The cold finger by equipped with temperature sensor 5 monitoring obtain it is cold
The temperature data of finger, the power circuit control to adjust the output power of electric cooling piece by the temperature data, and cold finger is made with electricity
It is bonded with heat conductive silica gel between cold.
Cold finger finger type structure made of high-purity copper, in the floor installation detector that front end is equipped with,
And the preamplifier mounting box for being set in core pulse signal processing circuit.The temperature of cold finger maintains 50 DEG C hereinafter, ensureing
Detector can work under the conditions of preferable.Cold finger is all made of thermal insulation with the surface that detector is exposed under external high temperature environment
Material is thermally isolated, to reduce heat radiation and heat transfer, to reduce the power consumption of electric cooling piece.
Si-PIN detectors or SDD detectors can be used in the detector, has inside the detector and is separately provided
Electric cooling piece so that detector sensitive volume can be operated in subzero 20 DEG C of environment；The bottom of detector has thermally conductive sheet.
The thermally conductive sheet of detector comes into full contact with cold finger, and heat conductive silica gel bonding can be used in contact surface, the heat generated by detector inside,
Via cold finger, electric cooling piece and heat conduction copper sheet, communicate the temperature on radiator.Preamplifier is mounted in cold finger, in
Portion is sealed using heat-conducting glue.The preamplifier and detector are required for being operated under 50 DEG C of environment, therefore cold finger needs
Maintain 50 DEG C or less.
The beryllium material that high-purity can be used in the detection window is made, and has good hardness；Titanium can be used in inserting tube wall
Steel material makes, and is welded using alloy material between beryllium window and inserting tube wall, to ensure that inserting tube being capable of resistance to compression 50Mpa.
In addition, isotopic source can be used in the excitaton source, it is mounted in polyphenylene sulfide (PPS), to improve the resistance to of inserting tube
High temperature, chemical resistance, fire retardant and thermal stability.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, it will be understood by those of ordinary skill in the art that, to the technical side of the present invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Right in.
Claims (7)
- The inserting tube 1. a kind of x-ray fluorescence for detecting deep well is logged well, which is characterized in that including：It is set to swashing in tube body (1) It rises (4), detector, core pulse signal processing circuit, power circuit, communicating circuit and cooling device, on the tube body (1) Offer detection window (2)；The detector is used to acquire excites the X-ray generated after the borehole wall by excitaton source (4), and converts For core pulse signal, after core pulse signal is carried out impulse amplitude processing by the core pulse signal processing circuit, by generation Digital signal is accumulative to form x-ray fluorescence spectral line, and the communicating circuit is used to x-ray fluorescence spectral line being transmitted to ground, institute The power circuit stated is used to power for x-ray fluorescence well logging inserting tube, and detector is sealed in tube body (1) by the cooling device It is interior, and its cooled detector is driven by power circuit；The cooling device includes：Cold finger, electric cooling piece, heat conduction copper sheet and radiator (3)；The front end of the cold finger is by setting Some floor installation detectors, the electric cooling piece are set between heat conduction copper sheet and cold finger, which passes through power supply Circuit drives, to reduce cold finger temperature and transmit the heat generated through detector, bottom and the radiator (3) of the heat conduction copper sheet Connection, the thermal energy for generating electric cooling piece is transferred to radiator (3), and is outwardly radiated by the radiator (3), described Radiator (3) detector is sealed in tube body (1).
- The inserting tube 2. x-ray fluorescence according to claim 1 for detecting deep well is logged well, which is characterized in that the cold finger Heat-insulating material is all made of with detector exposure outer surface to be thermally isolated.
- The inserting tube 3. x-ray fluorescence according to claim 1 for detecting deep well is logged well, which is characterized in that described is cold Refer to the temperature data that cold finger is obtained by temperature sensor (5) monitoring being equipped with, the power circuit passes through the temperature data control System adjusts the output power of electric cooling piece.
- The inserting tube 4. x-ray fluorescence according to claim 1 for detecting deep well is logged well, which is characterized in that described is cold The copper product that finger, heat conduction copper sheet and radiator (3) are all made of high-purity is made.
- The inserting tube 5. x-ray fluorescence according to claim 1 for detecting deep well is logged well, which is characterized in that the spy It surveys device and uses Si-PIN detectors or SDD detectors.
- The inserting tube 6. x-ray fluorescence according to claim 1 for detecting deep well is logged well, which is characterized in that the spy Window (2) is surveyed to constitute using the beryllium material of high-purity.
- The inserting tube 7. x-ray fluorescence according to claim 1 for detecting deep well is logged well, which is characterized in that the pipe Body (1) is made of titanium steel material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610220817.9A CN105866155B (en) | 2016-04-11 | 2016-04-11 | A kind of x-ray fluorescence well logging inserting tube for detecting deep well |
| PCT/CN2016/083654 WO2017177517A1 (en) | 2016-04-11 | 2016-05-27 | X-ray fluorescence logging probe for deep well detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610220817.9A CN105866155B (en) | 2016-04-11 | 2016-04-11 | A kind of x-ray fluorescence well logging inserting tube for detecting deep well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105866155A CN105866155A (en) | 2016-08-17 |
| CN105866155B true CN105866155B (en) | 2018-11-13 |
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| CN201610220817.9A Active CN105866155B (en) | 2016-04-11 | 2016-04-11 | A kind of x-ray fluorescence well logging inserting tube for detecting deep well |
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| Country | Link |
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| CN (1) | CN105866155B (en) |
| WO (1) | WO2017177517A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866155B (en) * | 2016-04-11 | 2018-11-13 | 中国科学院声学研究所 | A kind of x-ray fluorescence well logging inserting tube for detecting deep well |
| CN112684488A (en) * | 2020-12-29 | 2021-04-20 | 苏州兀象科学仪器有限公司 | High-vacuum semiconductor X-ray detector with lengthened rod |
| CN114370991B (en) * | 2021-12-10 | 2023-05-02 | 中国科学院合肥物质科学研究院 | Refrigerating method for testing photoelectric performance of scientific CCD detector |
| CN114686836B (en) * | 2022-03-28 | 2023-08-22 | 尚越光电科技股份有限公司 | XRF detection structure of roll-to-roll copper indium gallium diselenide evaporation |
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| Publication number | Publication date |
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| CN105866155A (en) | 2016-08-17 |
| WO2017177517A1 (en) | 2017-10-19 |
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