CN202441359U - Calibration facility of nuclear logging-while-drilling instrument with controllable source - Google Patents
Calibration facility of nuclear logging-while-drilling instrument with controllable source Download PDFInfo
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- CN202441359U CN202441359U CN2012200499980U CN201220049998U CN202441359U CN 202441359 U CN202441359 U CN 202441359U CN 2012200499980 U CN2012200499980 U CN 2012200499980U CN 201220049998 U CN201220049998 U CN 201220049998U CN 202441359 U CN202441359 U CN 202441359U
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Abstract
The utility model discloses a calibration facility of a nuclear logging-while-drilling instrument with a controllable source. A calibration groove is adopted, a nuclear protecting material is lined in the calibration groove, a solid lithological medium module with a groove on the upper end surface is placed in the calibration groove, and fluid is filled in the calibration groove. The calibration facility of the nuclear logging-while-drilling instrument with the controllable source not only is applicable to calibration of the nuclear logging-while-drilling instrument with the controllable source, but also can be used for a nuclear logging instrument with a chemical source, and switching of different modules in a calibration method of the nuclear logging-while-drilling instrument is realized. Besides, the calibration facility is simple, easy, safe, reliable and environment-friendly, and is advanced and superior as compared with a traditional nuclear instrument calibration method and a traditional device.
Description
Technical field
The utility model relates to a kind of Nuclear Logging Tools graduation apparatus.
Background technology
Well logging during is a kind of non-wireline logging; It is that sensor is placed in the special drill collar; In drilling process, measure various physical parameters and related data sent to ground, with this instruct drill bit drilling direction, understand formation information, carry out the logging method of formation evaluation.
Well logging during and traditional cable well logging difference are very big, and the scale method of conventional Nuclear Logging Tools is inapplicable in well logging during with device.Owing to adopt controllable source, just with boring the new scale method of Nuclear Logging Tools and the security performance of device guarantee be provided for invention.Because drill collar is more much bigger than the diameter of open-hole logging instrument, can't be at the vertical scale gang of wells of existing tradition to carrying out scale with boring Nuclear Logging Tools, it is imperative with device to study a kind of novel, simple scale method.
At present; Existing Nuclear Logging Tools graduation apparatus Success in Experiment less under the experimental simulation condition; And analog scaling device effort is expensive on the spot, and simulated environment is single, can not change the lithology medium module easily; Can only simulate a certain specific lithology condition, to having relatively high expectations of Nuclear Logging Tools graduation apparatus.Simultaneously, the lithology simulation well of scale merit obtains difficulty, and the country rock size is big, and difficulty of construction is big, even it is big to build up back graduation apparatus maintenance cost.Though prior art discloses the horizontal cylinder of various hollows; In the cylinder of hollow, charge into fresh water and can be used to regulate the material of apparent porosity; Can obtain different scale values, still, come the conversion degree of porosity through the regulating block shift position that polytetrafluoroethylmaterial material is made; Certainty of measurement is not high, influences the instrument calibration accuracy.In addition; Change the mode of degree of porosity material for putting in a skylight; The degree of porosity material thickness is 1CM, regulates the height of solid lithology medium in shielding scale bucket through the gasket height that adjusting is placed in the groove, lets instrument when scale, calibrate investigation depth; Can survey NMR logging instrument to the response of various degree of porosity in the differing heights position through changing medium simultaneously, the scale process is complicated.
The utility model content
The utility model technical problem to be solved provides a kind of simple, Nuclear Logging Tools graduation apparatus and method thereof safely and effectively.
Concrete technical scheme is realized by following steps:
A kind of controllable source comprises with boring the Nuclear Logging Tools graduation apparatus:
A kind of scale groove injects fluid in the said scale groove liner nuclear defence material, said scale groove, being placed with the upper surface in the said scale groove is the solid lithology medium module of groove.
Preferably, said scale groove is the horizontal scale groove of level.
Preferably, said scale groove ectosome is the cement rectangle.
Preferably, said solid lithology medium module is natural whole sillar or hand teeming module.
Preferably, said fluid is a fresh water.
In scientific research, produce that kimonos is pragmatic and trample; The utility model has realized that its device is simple simultaneously, safe and reliable environmental protection to the conversion with disparate modules in the scale method that bores Nuclear Logging Tools; Compare with traditional nuclear instrument scale method and device, advanced superior.Particularly the lithology material of different aperture degree is processed module of the same size respectively, the variation through the instrument position during scale produces response to disparate modules degree of porosity in the pond.Owing to do not need regulating block, do not need the tested module shift position, thereby the scale effect be more accurate yet.The present invention both had been applicable to that controllable source with the scale that bores Nuclear Logging Tools, also can be used for the chemical source Nuclear Logging Tools, had good result of use, general promotional value and wide application prospect.
Description of drawings
Fig. 1: be that the controllable source that provides of the utility model embodiment is with boring the Nuclear Logging Tools graduation apparatus.
1, solid lithology medium module, 2, the scale groove.
The specific embodiment
The utility model adopts radioactivity scale simulation, and an environment that is equivalent to a certain formation parameter is provided, and with to instrument calibration, in other words, a radiation field that is equivalent to a certain scale value is provided, to realize the scale to instrument.
Controllable source as shown in Figure 1 adopts the horizontal scale groove 2 of a kind of level with boring the Nuclear Logging Tools graduation apparatus, and scale groove 2 ectosomes are the cement rectangle, places reeded cuboid module 1 in the middle of the upper surface in it, and the module material is set up according to different aperture degree characteristic.Module has natural whole sillar and hand teeming module, and block size is by the energy decision of controllable source neutron.
This device is according to the shaft building standard of industry, and the shared set of modules of neutron porosity and density value verification is made up of three modules.Wherein first module is natural whole sillar, and second module and second module are the hand teeming module.
The density value of three modules and porosity value are physical values all, are respectively:
(1) neutron porosity check value:
First module is about the low highly dense 0.1p.u in hole of limestone, about the low close 40p.u in the high hole of the second module concrete, in the three module concrete mesopore about close 20p.u.
(2) density check value:
First module is the low highly dense 2.70g/cm in hole of limestone
3About, close 1.70g/cm is hanged down in the high hole of the second module concrete
3About, close 2.38g/cm in the three module concrete mesopore
3About, also can add sandstone module: 2.64g/cm in case of necessity
3About.
All modules of this device are placed in the pond that is full of fresh water, and the one, radioactive source is played the certain shielding and the effect of protection, the 2nd, according to the technological requirement of all module makings, need all modules saturated by fresh water fully.The 3rd, make that the environment of module is consistent with existing test pit group rings border, guarantee the authenticity of module.
Module according to the replaceable different parameters of instrument calibration needs.
To lie against on the module with boring Nuclear Logging Tools with the controllable source of drill collar with hanging device during scale, treat the complete submerged of instrument of scale, (also can the same shape module of identical degree of porosity be covered in the instrument top as required).Can given-ioff neutron when accelerator for neutron production does not add the target pressure.In case during given-ioff neutron, tool housing and drill collar are owing to by the neutron ray activation, have certain γ radiation intensity.This moment, operating personnel should be away from the scale groove.After the wait personnel withdraw,, carry out scale to the instrument power supply.Dress the protective site clothing instrument of reacceesing after after instrument outage, must waiting for 10 minutes at least, to avoid unnecessary radiation injury.
It should be noted last that; The above specific embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to instance the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (5)
1. a controllable source comprises with boring the Nuclear Logging Tools graduation apparatus:
A kind of scale groove injects fluid in the said scale groove liner nuclear defence material, said scale groove, being placed with the upper surface in the said scale groove is the solid lithology medium module of groove.
2. graduation apparatus according to claim 1 is characterized in that, said scale groove is the horizontal scale groove of level.
3. graduation apparatus according to claim 1 is characterized in that, said scale groove ectosome is the cement rectangle.
4. graduation apparatus according to claim 1 is characterized in that, said solid lithology medium module is natural whole sillar and/or hand teeming module.
5. graduation apparatus according to claim 1 is characterized in that, said fluid is a fresh water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200499980U CN202441359U (en) | 2012-02-16 | 2012-02-16 | Calibration facility of nuclear logging-while-drilling instrument with controllable source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200499980U CN202441359U (en) | 2012-02-16 | 2012-02-16 | Calibration facility of nuclear logging-while-drilling instrument with controllable source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441359U true CN202441359U (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200499980U Expired - Fee Related CN202441359U (en) | 2012-02-16 | 2012-02-16 | Calibration facility of nuclear logging-while-drilling instrument with controllable source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536199A (en) * | 2012-02-16 | 2012-07-04 | 中国石油天然气集团公司 | Controllable source while-drilling nuclear logging tool calibration device and calibration method |
| CN112412391A (en) * | 2020-12-14 | 2021-02-26 | 中国海洋石油集团有限公司 | Well cementation quality scale well device and scale well unit thereof |
-
2012
- 2012-02-16 CN CN2012200499980U patent/CN202441359U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536199A (en) * | 2012-02-16 | 2012-07-04 | 中国石油天然气集团公司 | Controllable source while-drilling nuclear logging tool calibration device and calibration method |
| CN102536199B (en) * | 2012-02-16 | 2016-01-06 | 中国石油天然气集团公司 | A kind of controllable source nuclear logging while drilling instrument calibration device and scale method |
| CN112412391A (en) * | 2020-12-14 | 2021-02-26 | 中国海洋石油集团有限公司 | Well cementation quality scale well device and scale well unit thereof |
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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: 20120919 Termination date: 20210216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |