CN202731908U - Storage type compensated neutron logging tool - Google Patents
Storage type compensated neutron logging tool Download PDFInfo
- Publication number
- CN202731908U CN202731908U CN 201220350466 CN201220350466U CN202731908U CN 202731908 U CN202731908 U CN 202731908U CN 201220350466 CN201220350466 CN 201220350466 CN 201220350466 U CN201220350466 U CN 201220350466U CN 202731908 U CN202731908 U CN 202731908U
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- neutron source
- storage type
- logging tool
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Abstract
A storage type compensated neutron logging tool comprises a shell and a neutron source bin, wherein a locking plug is arranged at the rear end of the shell, a metal thermal insulation bottle is arranged in the shell, and a battery is arranged at the rear end of the metal thermal insulation bottle inside the shell. Probe electronic circuits are arranged in the shell, a neutron source component is arranged in the neutron source bin, and the neutron source component comprises a long-spacing detector and a short-spacing detector. An elastic check ring is mounted at the junction position of the locking plug and the shell. The rear end of the neutron source bin is inserted into the shell, and an O-shaped sealing ring is arranged at the junction position of the neutron source bin and the shell. A protective cap is arranged at the front end of the neutron source bin, and a heat-insulating protective layer is arranged outside the neutron source component. The storage type compensated neutron logging tool is compact in design, all the electronic circuits are mounted at the position of the metal thermal insulation bottle inside the shell, using safety is improved, and the service life of the storage type compensated neutron logging tool is prolonged; and since no external electrical circuit is arranged, the storage type compensated neutron logging tool can be overhauled independently in the process of maintenance, and maintenance efficiency is improved.
Description
Technical field
The utility model relates to the logging equipment field, and particularly the neutron source of utilizing in the mine locating drilling well is measured the logger of formation porosity, is specifically related to a kind of memory-type compensation neutron logger.
Background technology
Well logging, also be geophysical log or oil well logging, be called for short well logging, the geophysics characteristics such as the electrochemical properties that utilizes the rock stratum, conductive characteristic, acoustic characteristic, radioactivity, measure the method for geophysical parameters, belong to one of applied geophysics method (comprising weight, magnetic, electricity, shake, well logging).Logging method is numerous.Electricity, sound, radioactivity are three kinds of basic skills.Specific process (such as cable formation testing, dipmeter log, imaging logging, nuclear magnetic resonance log), other forms such as well logging during.Because logging method is numerous, the various parameter kinds of gained are also various during well logging, and along with the progress of each side science and technology, and the continuous maturation of logging technique is perfect, various logging mode methods occurred, and also multiple logger has been designed in invention simultaneously.
Radioactive logging namely is radioactive method of measuring in boring, two large classes is generally arranged: neutron well logging and gamma ray log.Neutron well logging is to launch continuous fast neutron stream with neutron source in the stratum, nucleus collision in these neutrons and the stratum and lose part energy is measured these energy in order to the degree of porosity that calculates the stratum and is distinguished wherein fluid properties with probe (counter).Compensation neutron logger is exactly a kind of of radioactive logging instrument.It has the probe of the thermal neutron-epithermal neutron of two different spacings, determines the voidage on stratum by the count rate ratio of long and short spacing detector.Domestic its basic functional principle of logging program instrument commonly used is identical at present, all is the probe of the thermal neutron-epithermal neutron of two different spacings, determines the voidage on stratum by the technology rate ratio of length spacing detector.But such compensation neutron logger adopts the integrated components and parts of middle and small scale in a large number; the device practicality is many and volume is large; therefore only be that partial circuit is packed in the metal heat insulation bottle; and then be sealed in the metal bearing shell, other circuit then can't be encapsulated in the metal heat insulation layer in order to realize the function of high temperature protection.In addition, the power supply of existing compensation neutron logger has+5 volts of power supplys, 12 volts of power supplys, and power consumption is large, causes a bottle interior temperature to raise very fast; Existing compensation neutron logger is not instrument independently, it has electric wiring to be connected with aboveground instrument, the tightness that does not have mechanical connecting structure, there is not independently power supply, and short circuit appears in electrical connection easily, the problem such as open circuit, affect construction speed, and in a single day instrument goes wrong, maintenance is wasted time and energy.
The utility model content
The purpose of this utility model is to propose a kind of memory-type compensation neutron logger, and having solved existing instrument does not have independent power supply, and electric wiring connects complicated, short circuit occurs easily, the problem that opens circuit, and affect the well logging process, and instrument overhauls the problem that wastes time and energy.
For reaching this purpose, the utility model by the following technical solutions:
A kind of memory-type compensation neutron logger, comprise shell and neutron source storehouse, described outer casing back is provided with plug, be provided with the metal heat insulation bottle in the described shell, and the metal heat insulation bottle rear end in described shell is provided with battery, the probe electronic circuit is installed in the described shell, and described neutron source is provided with Neutron source assembly in the storehouse, and described Neutron source assembly comprises long source detector and short source detector.
Preferably, the junction of described plug and shell is equipped with circlip.
Preferably, insert in the enclosure rear end, described neutron source storehouse, and be provided with the O RunddichtringO in the junction of the two.
Preferably, described neutron source storehouse front end is provided with helmet.
Preferably, described Neutron source assembly is outside equipped with heat-barrier coating.
The utility model is compact to design, by battery is installed in the enclosure, is used for the reserve power supply; avoided instrument because the power shortage impact is used; simultaneously at the logging instrument front end helmet is set, the rear end arranges plug, and outside the neutron source storehouse one deck heat-barrier coating is set; all electronic circuits are installed on the metallic insulation bottle place in the shell; improve the safety of using, prolonged application life, and without external electric wiring; can overhaul separately during maintenance, improve overhaul efficiency.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure:
1, plug; 2, shell; 3, metal heat insulation bottle; 4, circlip; 5, neutron source storehouse; 6, O RunddichtringO; 7, helmet; 8, battery; 9, long source detector; 91, lack source detector; 10, probe electronic circuit; 11, heat-barrier coating.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.
Fig. 1 is the utility model implementation structural representation, comprise shell 2 and neutron source storehouse 5 among the figure, described shell 2 rear ends are provided with plug 1, be provided with metal heat insulation bottle 3 in the described shell 2, and metal heat insulation bottle 3 rear ends in described shell 2 are provided with battery 8, probe electronic circuit 10 is installed in the described shell 2, is provided with Neutron source assembly in the described neutron source storehouse 5, described Neutron source assembly comprises long source detector 9 and short source detector 91;
Described plug 1 is equipped with circlip 4 with the junction of shell 2;
Rear end, described neutron source storehouse is inserted in the shell 2, and is provided with O RunddichtringO 6 in the junction of the two, and the periphery of described Neutron source assembly is provided with heat-barrier coating 11, and the front end in described neutron source storehouse 5 is provided with helmet 7.
The utility model is compact to design, by at shell 2 interior installation batteries 8, is used for the reserve power supply; avoided instrument because the power shortage impact is used; simultaneously at the logging instrument front end helmet 7 is set, the rear end arranges plug 1, and in the neutron source storehouse the 5 outer one deck heat-barrier coatings 11 that arrange; all electronic circuits are installed on metallic insulation bottle 3 places in the shell; improve the safety of using, prolonged application life, and without external electric wiring; can overhaul separately during maintenance, improve overhaul efficiency.
Claims (5)
1. memory-type compensation neutron logger, comprise shell and neutron source storehouse, it is characterized in that, described outer casing back is provided with plug, be provided with the metal heat insulation bottle in the described shell, and the metal heat insulation bottle rear end in described shell is provided with battery, the probe electronic circuit is installed in the described shell, described neutron source is provided with Neutron source assembly in the storehouse, and described Neutron source assembly comprises long source detector and short source detector.
2. a kind of memory-type compensation neutron logger according to claim 1 is characterized in that the junction of described plug and shell is equipped with circlip.
3. a kind of memory-type compensation neutron logger according to claim 1 and 2 is characterized in that, insert in the enclosure rear end, described neutron source storehouse, and is provided with the O RunddichtringO in the junction of the two.
4. a kind of memory-type compensation neutron logger according to claim 1 and 2 is characterized in that, described neutron source storehouse front end is provided with helmet.
5. a kind of memory-type compensation neutron logger according to claim 1 and 2 is characterized in that described Neutron source assembly is outside equipped with heat-barrier coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220350466 CN202731908U (en) | 2012-07-18 | 2012-07-18 | Storage type compensated neutron logging tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220350466 CN202731908U (en) | 2012-07-18 | 2012-07-18 | Storage type compensated neutron logging tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731908U true CN202731908U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220350466 Expired - Lifetime CN202731908U (en) | 2012-07-18 | 2012-07-18 | Storage type compensated neutron logging tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731908U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609666A (en) * | 2015-10-27 | 2017-05-03 | 北京环鼎科技有限责任公司 | A metal heat insulation device for a logging instrument for small boreholes with high temperature and high pressure |
| CN107978379A (en) * | 2017-11-17 | 2018-05-01 | 重集团大连工程技术有限公司 | Segmented In-core Instrumentation detector protects closure assembly |
| CN111119872A (en) * | 2018-10-31 | 2020-05-08 | 中石化石油工程技术服务有限公司 | Measurement while drilling device |
-
2012
- 2012-07-18 CN CN 201220350466 patent/CN202731908U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609666A (en) * | 2015-10-27 | 2017-05-03 | 北京环鼎科技有限责任公司 | A metal heat insulation device for a logging instrument for small boreholes with high temperature and high pressure |
| CN107978379A (en) * | 2017-11-17 | 2018-05-01 | 重集团大连工程技术有限公司 | Segmented In-core Instrumentation detector protects closure assembly |
| CN107978379B (en) * | 2017-11-17 | 2019-11-22 | 一重集团大连工程技术有限公司 | Segmented In-core Instrumentation detector protects closure assembly |
| CN111119872A (en) * | 2018-10-31 | 2020-05-08 | 中石化石油工程技术服务有限公司 | Measurement while drilling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180208 Address after: 300356 24, Tianjin Industrial Park, eight Li Town, Jinnan District, Jianshe Road Patentee after: JIAI (TIANJIN) PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO.,LTD. Address before: 100070 Beijing city Fengtai District Haiying Road No. 1 Building No. 4 Hospital East first floor Patentee before: GI Technologies (Beijing) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee after: JIAI (TIANJIN) PETROLEUM ENGINEERING Co.,Ltd. Address before: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee before: JIAI (TIANJIN) PETROLEUM ENGINEERING TECHNOLOGY SERVICE CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee after: Jiai (Tianjin) automatic control intelligent equipment Co.,Ltd. Address before: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee before: JIAI (TIANJIN) PETROLEUM ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee after: Jichen Intelligent Equipment Group Co.,Ltd. Address before: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee before: Jiai (Tianjin) automatic control intelligent equipment Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |