CN105350951B - For the heat preservation of geochemical well logging instrument probe B GO crystal counters and precooling device - Google Patents
For the heat preservation of geochemical well logging instrument probe B GO crystal counters and precooling device Download PDFInfo
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- CN105350951B CN105350951B CN201510736452.0A CN201510736452A CN105350951B CN 105350951 B CN105350951 B CN 105350951B CN 201510736452 A CN201510736452 A CN 201510736452A CN 105350951 B CN105350951 B CN 105350951B
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Abstract
The invention discloses a kind of heat preservation for geochemical well logging instrument probe B GO crystal counters with precooling device, belong to nuclear physics logger technical field, it includes：Shell, aeration conversion joint, the first pipeline, vacuum flask, BGO crystal counters, temperature detection circuit board, the second pipeline, third pipeline and steel cylinder；Vacuum flask and aeration conversion joint are respectively mounted inside the shell, and BGO crystal counters are mounted in vacuum flask, and temperature detection circuit board is fixed on close to the position of BGO crystal counters；One end of third pipeline is connect with steel cylinder, and it is respectively the first pipeline and the second pipeline that the other end is divided into two connecting pins by aeration conversion joint, and the outlet side of the first pipeline is located at BGO crystal counters；The outlet side of second pipeline is located at temperature sensing circuit；The present invention can be precooled and be kept the temperature to BGO crystal counters, it is ensured that detector can be maintained to work normally more than 10h in underground after cooling.
Description
Technical field
The invention belongs to nuclear physics logger technical fields, and in particular to be visited for geochemical well logging instrument probe B GO crystal
The heat preservation of device is surveyed with precooling device.
Background technology
With the continuous development of petroleum industry, the requirement for well logging is also higher and higher.At present, with the increasing of drilling depth
Add, downhole temperature is also higher and higher, when well depth be more than 5000m when, well temperature will up to 150 degree, when well depth more than 7000m when,
Well temperature will be up to 2000 degree；And the environment temperature of logging instrument normal work is no more than 175 degree, it is therefore necessary to using one kind every
Thermal.
BGO crystal is a kind of multi-functional scintillation crystal of good performance, it has stronger prevention ray ability and very high
Detection gamma ray efficiency, and there is to be not easy deliquescence, machining property good, geochemical well logging instrument detector choosing
With BGO crystal.But BGO there is a very big weakness be exactly fluorescence conversion efficiency be influenced by temperature it is very big, cause be
The unstability of system so as to generation system error, reduces measurement accuracy, and the confidence level for result of logging well reduces.
Invention content
In view of this, the object of the present invention is to provide the heat preservation for geochemical well logging instrument probe B GO crystal counters and in advance
Cooling device can be precooled and be kept the temperature to BGO crystal counters, it is ensured that detector can be maintained to be worked normally in underground after cooling
More than 10h.
The present invention is achieved through the following technical solutions：
For geochemical well logging instrument probe B GO crystal counters heat preservation with precool device, including：Shell, inflation conversion
Connector, the first pipeline, vacuum flask, pre-amplification circuit plate, BGO crystal counters, temperature detection circuit board, data processing circuit
Plate, the second pipeline, third pipeline and steel cylinder；
The shell it is closed at both ends, and be provided on shell into outlet nozzle；
Its connection relation is as follows：Vacuum flask and aeration conversion joint are respectively mounted inside the shell, BGO crystal counters, preposition
After magnification circuit plate and the electrical connection of data processing circuit plate, it is mounted in vacuum flask side by side, temperature detection circuit board is fixed on
It is electrically connected close to the position of BGO crystal counters, and with external display；
One end of third pipeline is connect with steel cylinder, one end into outlet nozzle and aeration conversion joint that the other end passes through shell
Connection, the other end of aeration conversion joint are divided into two connecting pins and are connect respectively with the first pipeline and the second pipeline, the first pipeline
Outlet side be located at BGO crystal counters；The outlet side of second pipeline is located at pre-amplification circuit and temperature sensing circuit.
Further, liquid carbon dioxide is housed in the steel cylinder.
Further, the third pipeline uses siphon pipe.
Further, the BGO crystal counters are made of photomultiplier and BGO crystal.
Further, the both ends of the shell are closed respectively by plug and lower contact, and shell and plug and lower contact
Contact position be separately installed with O-ring and sealing ring；Shell into being equipped with suction nozzle sealing-plug on outlet nozzle.
Advantageous effect：(1) when the present invention can effectively prevent measuring gamma spectra using BGO crystal counters by
Peak shift phenomenon and change resolution caused by change in temperature.
(2) present invention visits the temperature change that can effectively monitor BGO crystal counters, can effectively prevent because of cooling velocity
The too fast photomultiplier that the variation for keeping the temperature pressure of the inside of a bottle is caused to cause BGO crystal counters is burst.
(3) present invention can farthest improve resolution capability, the quality of data and temperature of the BGO crystal counters to energy spectrum
The retention time is spent, BGO crystal counters can be maintained to work normally more than 10h in underground after cooling.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is shell of the present invention into the sectional view at outlet nozzle.
Fig. 3 is external structure of the present invention.
Wherein, 1- plugs, 2-O type circles, 3- shells, 4- aeration conversion joints, the first pipelines of 5-, 6- vacuum flask, 7- are preposition
Magnification circuit plate, 8- sealing rings, 9- lower contacts, 10- suction nozzle sealing-plugs, 11-BGO crystal counters, 12- temperature sensing circuits
Plate, 13- data processing circuit plates, the second pipelines of 14-, 15- third pipelines, 16- steel cylinders, 17- is into outlet nozzle.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present invention provides the heat preservation for geochemical well logging instrument probe B GO crystal counters with precooling device, referring to attached
Fig. 1-3, including：Shell 3, aeration conversion joint 4, the first pipeline 5, vacuum flask 6, pre-amplification circuit plate 7, the detection of BGO crystal
Device 11, temperature detection circuit board 12, data processing circuit plate 13, the second pipeline 14, third pipeline 15 and steel cylinder 16；
Liquid carbon dioxide is housed in the steel cylinder 16；
The third pipeline 15 uses siphon pipe；
The both ends of the shell 3 are closed respectively by plug 1 and lower contact 9, and shell 3 and plug 1 and lower contact 9 connect
Synapsis is separately installed with O-ring 2 and sealing ring 8；Be provided on shell 3 into outlet nozzle 17, into outlet nozzle 17 on equipped with suction nozzle it is close
Blocking 10, suction nozzle sealing-plug 10 is used to clog into outlet nozzle 17 after the completion of inflation；Shell 3 has good pressure-bearing effect；
The vacuum flask 6 is the special vacuum flask of high-performance, can be met when operating temperature is 175 degree, the working time is small for 6
Constantly, the Wen Sheng in vacuum flask 6 is less than 50 degree；
The BGO crystal counters 11 are made of photomultiplier and BGO crystal, utilize high-amplification-factor, High Linear
Photomultiplier and BGO crystal high Photo peak efficiency, reduce and count radiometric fluctuation, improve the measurement essence of instrument
Degree；
Its connection relation is as follows：Vacuum flask 6 and aeration conversion joint 4 are installed in shell 3, BGO crystal counters 11,
After pre-amplification circuit plate 7 and data processing circuit plate 13 are electrically connected, it is mounted in vacuum flask 6 side by side, temperature sensing circuit
Plate 12 is fixed on close to the position of BGO crystal counters 11, and is electrically connected with terminal device；
One end of third pipeline 15 is connect with steel cylinder 16, and the other end is connect by shell 3 into outlet nozzle 17 and inflation conversion
First 4 one end connection, the other end of aeration conversion joint 4 be divided into two connecting pins respectively with the first pipeline 5 and the second pipeline 14
Connection, the outlet side of the first pipeline 5 is located at BGO crystal counters 11, for cooling down BGO crystal counters 11；Second pipeline
14 outlet side is located at pre-amplification circuit 7 and temperature sensing circuit 12, for cooling down pre-amplification circuit 7 and temperature detection
Circuit 12；
Operation principle：Liquid carbon dioxide in steel cylinder 16 is passed by third pipeline 15 inside vacuum flask 6, liquid two
Carbonoxide in the gasification of two gas outlets of third pipeline 15 for gaseous carbon dioxide, respectively to BGO crystal counters 11 and preposition
Magnification circuit plate 7 and temperature sensing circuit 12 are cooled down；Temperature detection circuit board 12 detects the temperature of BGO crystal counters 11
Degree, and the data measured will be transmitted on terminal device in real time by Ethernet, it prevents from causing guarantor because cooling velocity is too fast
The variation of pressure causes bursting for the photomultiplier of BGO crystal counters 11 in warm bottle 6；Carbon dioxide after gasification passes through outer
The bypass into outlet nozzle 17 of shell 3 is discharged；
When being logged well, after third pipeline 15 and 16 shell 3 of steel cylinder are unloaded, with suction nozzle sealing-plug 10 by shell 3
It is clogged into outlet nozzle 17, shell 3 and its internal component is positioned in well and logged well；The number that BGO crystal counters 11 measure
It is passed according to by pre-amplification circuit plate 7 and data processing circuit plate 13.
In conclusion the foregoing is merely a prefered embodiment of the invention, it is not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (3)
1. for the heat preservation of geochemical well logging instrument probe B GO crystal counters and precooling device, which is characterized in that including：Shell
(3), aeration conversion joint (4), the first pipeline (5), vacuum flask (6), pre-amplification circuit plate (7), BGO crystal counters
(11), temperature detection circuit board (12), data processing circuit plate (13), the second pipeline (14), third pipeline (15) and steel cylinder
(16)；
The shell (3) it is closed at both ends, and be provided on shell (3) into outlet nozzle (17)；
Its connection relation is as follows：Vacuum flask (6) and aeration conversion joint (4) are installed in shell (3), BGO crystal counters
(11), after pre-amplification circuit plate (7) and data processing circuit plate (13) are electrically connected, side by side in vacuum flask (6), temperature
Degree detection circuit plate (12) is fixed on close to the position of BGO crystal counters (11), and is electrically connected with external display；
One end of third pipeline (15) is connect with steel cylinder (16), and the other end is turned by shell (3) into outlet nozzle (17) and inflation
One end connection of changing-over head (4), the other end of aeration conversion joint (4) be divided into two connecting pins respectively with the first pipeline (5) and
Second pipeline (14) connects, and the outlet side of the first pipeline (5) is located at BGO crystal counters (11)；Second pipeline (14) go out
Gas end is located at pre-amplification circuit plate (7) and temperature detection circuit board (12)；
Liquid carbon dioxide is housed in the steel cylinder (16)；
The third pipeline (15) is using siphon pipe.
It is 2. special as described in claim 1 for the heat preservation of geochemical well logging instrument probe B GO crystal counters with precooling device
Sign is that the BGO crystal counters (11) are made of photomultiplier and BGO crystal.
It is 3. special as described in claim 1 for the heat preservation of geochemical well logging instrument probe B GO crystal counters with precooling device
Sign is, the both ends of the shell (3) are closed respectively by plug (1) and lower contact (9), and shell (3) and plug (1) and under
The contact position of connector (9) is separately installed with O-ring (2) and sealing ring (8)；Shell (3) into being equipped with air inlet on outlet nozzle (17)
Mouth sealing-plug (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736452.0A CN105350951B (en) | 2015-11-02 | 2015-11-02 | For the heat preservation of geochemical well logging instrument probe B GO crystal counters and precooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736452.0A CN105350951B (en) | 2015-11-02 | 2015-11-02 | For the heat preservation of geochemical well logging instrument probe B GO crystal counters and precooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105350951A CN105350951A (en) | 2016-02-24 |
| CN105350951B true CN105350951B (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510736452.0A Active CN105350951B (en) | 2015-11-02 | 2015-11-02 | For the heat preservation of geochemical well logging instrument probe B GO crystal counters and precooling device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756961A (en) * | 2003-03-04 | 2006-04-05 | 等温系统研究公司 | Apparatus and method for cooling optically probed integrated circuits |
| CN101133232A (en) * | 2004-12-03 | 2008-02-27 | 哈里伯顿能源服务公司 | Heating and cooling electrical components in a downhole operation |
| CN202882903U (en) * | 2012-10-12 | 2013-04-17 | 吉艾科技（北京）股份公司 | Enhancement type compensation neutron logging instrument |
| CN202992644U (en) * | 2012-07-03 | 2013-06-12 | 江苏出入境检验检疫局工业产品检测中心 | Automatic control system for liquid nitrogen level |
| CN203356241U (en) * | 2013-01-28 | 2013-12-25 | 龙口市丛林铝材有限公司 | Liquid nitrogen cooling controller |
| CN205206807U (en) * | 2015-11-02 | 2016-05-04 | 中国船舶重工集团公司第七一八研究所 | A keep warm and cooling device in advance for geochemical well logging appearance probe BGO crystal counter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ522211A (en) * | 2000-04-24 | 2004-05-28 | Shell Int Research | A method for treating a hydrocarbon containing formation |
-
2015
- 2015-11-02 CN CN201510736452.0A patent/CN105350951B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756961A (en) * | 2003-03-04 | 2006-04-05 | 等温系统研究公司 | Apparatus and method for cooling optically probed integrated circuits |
| CN101133232A (en) * | 2004-12-03 | 2008-02-27 | 哈里伯顿能源服务公司 | Heating and cooling electrical components in a downhole operation |
| CN202992644U (en) * | 2012-07-03 | 2013-06-12 | 江苏出入境检验检疫局工业产品检测中心 | Automatic control system for liquid nitrogen level |
| CN202882903U (en) * | 2012-10-12 | 2013-04-17 | 吉艾科技（北京）股份公司 | Enhancement type compensation neutron logging instrument |
| CN203356241U (en) * | 2013-01-28 | 2013-12-25 | 龙口市丛林铝材有限公司 | Liquid nitrogen cooling controller |
| CN205206807U (en) * | 2015-11-02 | 2016-05-04 | 中国船舶重工集团公司第七一八研究所 | A keep warm and cooling device in advance for geochemical well logging appearance probe BGO crystal counter |
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| CN105350951A (en) | 2016-02-24 |
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