CN205720061U - A kind of XRF well logging inserting tube for detecting deep well - Google Patents
A kind of XRF well logging inserting tube for detecting deep well Download PDFInfo
- Publication number
- CN205720061U CN205720061U CN201620296642.5U CN201620296642U CN205720061U CN 205720061 U CN205720061 U CN 205720061U CN 201620296642 U CN201620296642 U CN 201620296642U CN 205720061 U CN205720061 U CN 205720061U
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- China
- Prior art keywords
- detector
- inserting tube
- xrf
- well logging
- cold finger
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Abstract
This utility model provides a kind of XRF well logging inserting tube for detecting deep well, including: excitaton source (4), detector, core pulse signal process circuit, power circuit, communicating circuit and the chiller being arranged in body (1), described body (1) offers detection window (2)；Detector is sealed in body (1) by described chiller, and drives its cooled detector by power circuit.Inserting tube of the present utility model is by using simple electricity refrigeration structure so that it is can realize XRF well logging under high temperature, environment under high pressure, directly measure borehole wall constituent content, thus be suitably applied in the geologic prospect in field；And the apparatus structure that this inserting tube is realized is simply, by chiller is integrated in tubular body, reduces the space of inserting tube so that it is can use in small-bore well logging, meet the demand of mineral exploration.
Description
Technical field
This utility model relates to detecting deep well technical field, is specifically related to a kind of XRF for detecting deep well
Well logging inserting tube.
Background technology
XRF well logging is a kind of analytical technology directly measuring borehole wall constituent content in down-hole, is the important of well logging
Ingredient.
XRF well logging inserting tube is to be transferred to target depth, excitaton source (X-ray light pipe or coordination by logging winch
Element excitaton source) radiate primary ray, make the atom of the borehole wall be excited.Atom, during de excitation, produces unit
The characteristic X-ray of element, the detector detection in tested exploratory shaft sinking pipe, it is converted into after the signal of telecommunication by core pulse signal circuit
Process, and add up as XRF power spectrum after being converted into digital signal.And measure compared to shallow well, survey at deep-well
In amount, equipment is had higher requirement by its residing pressure, operating temperature.In order to realize in deep borehole measurement,
Need to make the XRF well logging inserting tube that can resist high pressure, high temperature.
For high temperature problem, at present frequently be passive and actively both of which.So-called Passive Mode is to use
Vacuum insulation bottle realizes.Thermos flask is made up of multilamellar, and inside is evacuated so that thermos flask content is temperature-resistant
Or slowly raising, but this technology is not suitable for XRF well logging, its reason is: (1) is penetrated due to X
The energy of line is relatively low, poor to the penetration capacity of medium, it is therefore desirable to make detection window.And the depositing of detection window
, heat insulation effect will be affected；(2) X-ray detector needs high energy resolution, use at present Si-PIN or
SDD detector, needs to work at a constant temperature, and in thermos flask, actual temperature gradually rises, and therefore affects detector work
Make.
So-called aggressive mode is to use refrigeration plant to reduce high temperature impact, such as: utilize electricity cooling piece to make well logging
Refrigerating plant (patent No.: CN 202853191 U), and the Stirling of Schlumberger Overseas S. A.'s design
Cooling system (patent No.: CN1641185A) all can reach underground work temperature requirements.But, apparatus above chi
Very little, power consumption is big, is not suitable for small-bore well logging, and its structure is complicated, and manufacturing cost is high.
Utility model content
The purpose of this utility model is, cannot meet deep-well for solving above-mentioned existing XRF well logging inserting tube
The technical problem of detection environmental requirement, it is provided that a kind of XRF well logging inserting tube for detecting deep well, this spy
Pipe uses actively cooling-down type structure, its diameter is less than 60mm, it is possible to be operated in 100 degrees Celsius, 50Mpa pressure
In deep-well environment, to realize the elementary analysis of detecting deep well.
For achieving the above object, a kind of XRF well logging inserting tube for detecting deep well that this utility model provides,
Including: the excitaton source that is arranged in body, detector, core pulse signal process circuit, power circuit, communication electricity
Road and chiller, described body offers detection window；Described detector is swashed by excitaton source for gathering
The X-ray produced after sending out the borehole wall, and it is converted into core pulse signal, described core pulse signal processes circuit by core arteries and veins
After rushing the process that signal carries out pulse amplitude, by accumulative for the digital signal the generated XRF spectral line that formed, described
Communicating circuit for XRF spectral line being transferred to ground handling station, described power circuit provides X-ray
Working power needed for each several part in fluorologging inserting tube, detector is sealed in body by described chiller,
And drive its cooled detector by power circuit.
As the further improvement of technique scheme, described chiller includes: cold finger, electricity cooling piece, lead
Hot copper sheet and radiator；The front end of described cold finger is by the floor installation detector being provided with, and described electric cooling piece sets
Being placed between heat conduction copper sheet and cold finger, this electricity cooling piece is driven by power circuit, to reduce cold finger temperature and to transmit
Through the heat that detector produces, the bottom of described heat conduction copper sheet is connected with radiator, for produced by electricity cooling piece
Heat energy is transferred to radiator, and is outwardly dispelled the heat by this radiator, and detector is sealed in pipe by described radiator
Internal.
As the further improvement of technique scheme, described cold finger and detector are exposed to outer surface and all use absolutely
Hot material is thermally isolated.
As the further improvement of technique scheme, described cold finger is obtained by the temperature sensor monitors being provided with
The temperature data of cold finger, described power circuit is by the output of this temperature data control and regulation electricity cooling piece.
As the further improvement of technique scheme, described cold finger, heat conduction copper sheet and radiator all use high-purity
The copper product of degree is made.
As the further improvement of technique scheme, described detector uses Si-PIN detector or SDD to visit
Survey device.The X-ray that excitaton source produces incides on the borehole wall by window, and the X-ray of generation is by Si-PIN detector
Or SDD detector gathers, both detector energy resolution is high, is suitable for situ downhole multielement and measures.
As the further improvement of technique scheme, described detection window uses highly purified beryllium material to constitute.
As the further improvement of technique scheme, described body uses titanium steel material to make.Inserting tube uses titanium
Steel construction is processed, it is possible to bear the high pressure under deep-well.
In order to make detector work at a suitable temperature, inserting tube use electricity cooling piece to detector system
Cold treatment, keeps working in detector environment below 50 DEG C, thus ensures that instrument has good energy resolution
Rate.
A kind of XRF well logging inserting tube advantage for detecting deep well of the present utility model is:
Inserting tube of the present utility model is by using simple electricity refrigeration structure so that it is can be under high temperature, environment under high pressure
Realize XRF well logging, directly measure borehole wall constituent content, thus be suitably applied in the geologic prospect in field；
And the apparatus structure that this inserting tube is realized is simply, by chiller is integrated in tubular body, reduces inserting tube
Space so that it is can use in small-bore well logging, meet the demand of mineral exploration.
Accompanying drawing explanation
Fig. 1 is that a kind of XRF well logging inserting tube structure for detecting deep well in this utility model embodiment is shown
It is intended to.
Fig. 2 is the chiller structural representation in this utility model embodiment.
1, body 2, detection window
3, radiator 4, excitaton source
5, temperature sensor
Detailed description of the invention
With embodiment, a kind of XRF for detecting deep well described in the utility model is surveyed below in conjunction with the accompanying drawings
Exploratory shaft sinking pipe is described in detail.
The inserting tube as it is shown in figure 1, a kind of XRF for detecting deep well of the present utility model is logged well, including:
Be arranged at the detector in body 1, core pulse signal processes circuit, power circuit, communicating circuit and chiller
(not shown), also includes the excitaton source 4 shown in Fig. 2.Detection window 2 is offered on described body 1；Described
Detector excited, by excitaton source 4, the X-ray produced after the borehole wall for gathering, and be converted into core pulse signal, institute
The core pulse signal stated processes circuit and high-temperature device can be used to make, for carrying out core pulse signal at pulse amplitude
After reason and ADC conversion, on the fpga chip that the digital signal of generation is arranged on this circuit, is realized pulse amplitude
Extract, and accumulative formation XRF spectral line.Described XRF spectral line by communicating circuit through leadline
Ground passed back by cable, ground handling station carry out data acquisition and processing (DAP), and be converted into constituent content.Described power supply
Circuit is for powering for XRF well logging inserting tube, and detector is sealed in body 1 by described chiller,
And drive its cooled detector by power circuit.
As in figure 2 it is shown, in the present embodiment, described chiller comprises the steps that cold finger, electricity cooling piece, heat conduction
Copper sheet and radiator 3；The hot junction of described electricity cooling piece is in close contact with heat conduction copper sheet, and contact surface can use heat conductive silica gel
Bonding, the cold end of this electricity cooling piece is in close contact with cold finger, and contact surface may be used without heat conductive silica gel bonding.Electricity refrigeration
Sheet is driven by power circuit, to reduce cold finger temperature and to transmit the heat produced through detector.Described heat conduction copper sheet
Bottom be connected with radiator 3, for by electricity cooling piece produce heat be transferred in radiator by heat conduction copper sheet.
Radiator can be made up of high-purity copper, is sealed in by detector in body 1, and is in close contact with well liquid, in order to will
Heat is taken away by well liquid.Described heat conduction copper sheet and radiator can be cut by the copper cash of monoblock and form, thus has good
Good heat conductivity.
In the course of the work, owing to the temperature in electricity cooling piece hot junction is higher than the temperature of well liquid, therefore, electricity cooling piece needs
High temperature modification electricity cooling piece to be used, needs heatproof more than 135 DEG C.Electricity cooling piece power by power circuit control,
Power circuit is incoming transport electricity from logging cable, and is converted into unidirectional current.Described cold finger is by the temperature being provided with
Sensor 5 monitoring obtains the temperature data of cold finger, and described power circuit is by this temperature data control and regulation electricity refrigeration
The output of sheet, bonds with heat conductive silica gel between cold finger and electricity cooling piece.
The finger type structure that described cold finger can be made up of high-purity copper, the floor installation detector that it is provided with in front end,
And the preamplifier mounting box set in processing circuit for core pulse signal.The temperature of cold finger maintains less than 50 DEG C,
Ensure that detector can work under the conditions of preferably.Cold finger and detector are exposed to the surface under external high temperature environment
All use adiabator to be thermally isolated, to reduce heat radiation and conduction of heat, thus reduce the power consumption of electricity cooling piece.
Described detector can use Si-PIN detector or SDD detector, has and individually set inside this detector
The electric cooling piece put so that detector sensitive volume can be operated in the environment of subzero 20 DEG C；The bottom tool of detector
There is conducting strip.The conducting strip of detector is fully contacted with cold finger, and contact surface can use heat conductive silica gel to bond, by detecting
The internal heat produced of device, via cold finger, electricity cooling piece and heat conduction copper sheet, communicates the temperature on radiator.Before
Putting amplifier to be arranged in cold finger, its internal employing heat-conducting glue seals.This preamplifier and detector all need
Being operated under 50 DEG C of environment, therefore cold finger needs to maintain less than 50 DEG C.
Described detection window can use highly purified beryllium material to make, and has good hardness；Inserting tube wall can use
Titanium steel material makes, and uses alloy material welding, to ensure that inserting tube can resistance to compression 50Mpa between beryllium window and inserting tube wall.
It addition, described excitaton source can use isotopic source, it is arranged in polyphenylene sulfide (PPS), to improve inserting tube
High temperature resistant, chemical proofing, difficult combustion and heat stability.
It should be noted last that, above example is only in order to illustrate the technical solution of the utility model and unrestricted.
Although this utility model being described in detail with reference to embodiment, it will be understood by those within the art that,
The technical solution of the utility model is modified or equivalent, without departure from technical solutions of the utility model
Spirit and scope, it all should be contained in the middle of right of the present utility model.
Claims (8)
1. the XRF well logging inserting tube for detecting deep well, it is characterised in that including: be arranged at body
(1) excitaton source (4) in, detector, core pulse signal process circuit, power circuit, communicating circuit and cold
Radiator cooler, described body (1) offers detection window (2)；Described detector is for gathering by excitaton source
(4) X-ray produced after exciting the borehole wall, and it is converted into core pulse signal, described core pulse signal processes circuit
After core pulse signal is carried out pulse amplitude process, form XRF spectral line by accumulative for the digital signal generated,
Described communicating circuit is for transmitting XRF spectral line to ground, and described power circuit is used for as X-ray
Fluorologging inserting tube is powered, and detector is sealed in body (1) by described chiller, and passes through power circuit
Drive its cooled detector.
XRF well logging inserting tube for detecting deep well the most according to claim 1, it is characterised in that
Described chiller includes: cold finger, electricity cooling piece, heat conduction copper sheet and radiator (3)；The front end of described cold finger
By the floor installation detector being provided with, described electric cooling piece is arranged between heat conduction copper sheet and cold finger, this electricity system
Cold is driven by power circuit, to reduce cold finger temperature and to transmit the heat produced through detector, described conduction copper
The bottom of sheet is connected with radiator (3), for the heat energy that electricity cooling piece produces is transferred to radiator (3), and leads to
Crossing this radiator (3) outwardly to dispel the heat, detector is sealed in body (1) by described radiator (3).
XRF well logging inserting tube for detecting deep well the most according to claim 2, it is characterised in that
Described cold finger and detector are exposed to outer surface and all use adiabator to be thermally isolated.
XRF well logging inserting tube for detecting deep well the most according to claim 2, it is characterised in that
Described cold finger obtains the temperature data of cold finger by temperature sensor (5) monitoring being provided with, and described power circuit leads to
Cross the output of this temperature data control and regulation electricity cooling piece.
XRF well logging inserting tube for detecting deep well the most according to claim 2, it is characterised in that
Described cold finger, heat conduction copper sheet and radiator (3) all use highly purified copper product to make.
XRF well logging inserting tube for detecting deep well the most according to claim 1, it is characterised in that
Described detector uses Si-PIN detector or SDD detector.
XRF well logging inserting tube for detecting deep well the most according to claim 1, it is characterised in that
Described detection window (2) uses highly purified beryllium material to constitute.
XRF well logging inserting tube for detecting deep well the most according to claim 1, it is characterised in that
Described body (1) uses titanium steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296642.5U CN205720061U (en) | 2016-04-11 | 2016-04-11 | A kind of XRF well logging inserting tube for detecting deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296642.5U CN205720061U (en) | 2016-04-11 | 2016-04-11 | A kind of XRF well logging inserting tube for detecting deep well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205720061U true CN205720061U (en) | 2016-11-23 |
Family
ID=57310584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620296642.5U Withdrawn - After Issue CN205720061U (en) | 2016-04-11 | 2016-04-11 | A kind of XRF well logging inserting tube for detecting deep well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205720061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866155A (en) * | 2016-04-11 | 2016-08-17 | 中国科学院声学研究所 | X-ray fluorescent logging exploring tube for deep well detection |
-
2016
- 2016-04-11 CN CN201620296642.5U patent/CN205720061U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866155A (en) * | 2016-04-11 | 2016-08-17 | 中国科学院声学研究所 | X-ray fluorescent logging exploring tube for deep well detection |
| WO2017177517A1 (en) * | 2016-04-11 | 2017-10-19 | 中国科学院声学研究所 | X-ray fluorescence logging probe for deep well detection |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20181113 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20181113 |