CN204086123U - Rock anisotropy measurement mechanism - Google Patents
Rock anisotropy measurement mechanism Download PDFInfo
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- CN204086123U CN204086123U CN201420538338.8U CN201420538338U CN204086123U CN 204086123 U CN204086123 U CN 204086123U CN 201420538338 U CN201420538338 U CN 201420538338U CN 204086123 U CN204086123 U CN 204086123U
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Abstract
The utility model provides a kind of rock anisotropy measurement mechanism, and this device comprises: housing; Steady laser transmitter, is positioned at described housing, for launching the laser signal be radiated on rock sample; Sample cell, is positioned on described housing, and is positioned at the light path center of described steady laser transmitter, for placing rock sample; Power supply, is positioned at described housing, for providing electric current for the rock sample be placed on described sample cell; Voltage tester, for testing the voltage of the electric signal that described rock sample produces under laser irradiates, the change in voltage of the electric signal produced under laser irradiates by described rock sample shows, wherein, described change in voltage is used for analyzing the anisotropic properties of described rock sample.Operate fairly simple by the anisotropy of the measurement device rock provided of the utility model embodiment, and can not rock sample be damaged.
Description
Technical field
The utility model relates to rock prospecting technique field, particularly a kind of rock anisotropy measurement mechanism.
Background technology
Rock anisotropy refers to the characteristic that the physical performance of natural rock mass is different and different with dimensional orientation, is in particular in the aspects such as the intensity of rock and deformation behavior.Under natural rock concrete conditions in the establishment of a specific crime, making rock mass have anisotropic fundamental cause is because ubiquity bedding, schistosity, interlayer and directed crack (tomography) system in rock.
At present, the ripple ratio characteristic and resistivity anisotropy etc. of study of rocks anisotropy mainly study of rocks P-wave And S, but rock category governs the anisotropic development degree of ripple ratio, and the anisotropic research of rock resistivity in the past uses multi electrode combination method, more complicated, does not also have the simple and effective method can measuring rock anisotropy characteristic at present.
Utility model content
The utility model embodiment provides a kind of rock anisotropy measurement mechanism, and to realize the simple nondestructive measurement to rock anisotropy characteristic, this device comprises:
Housing;
Steady laser transmitter, is positioned at described housing, for launching the laser signal be radiated on rock sample;
Sample cell, is positioned on described housing, and is positioned at the light path center of described steady laser transmitter, for placing rock sample;
Power supply, is positioned at described housing, for providing electric current for the rock sample be placed on described sample cell;
Voltage tester, for testing the voltage of the electric signal that described rock sample produces under laser irradiates, the change in voltage of the electric signal produced under laser irradiates by described rock sample shows, wherein, described change in voltage is used for analyzing the anisotropic properties of described rock sample.
In one embodiment, described sample cell is can angled draw-in groove.
In one embodiment, described sample cell is provided with electrode, described electrode is connected with voltage tester by wire, and described electrode contacts with the rock sample on sample cell.
In one embodiment, described power supply is constant current source.
In one embodiment, also processor is provided with in described housing, be connected with described voltage tester, the change in voltage situation of the electric signal shown on voltage tester described in real time record, and analyze according to the anisotropic properties of change in voltage situation to described rock sample of record.
In one embodiment, described steady laser transmitter is 532nm wavelength laser transmitter.
In one embodiment, described rock anisotropy measurement mechanism is hand-held.
In the utility model embodiment, provide a kind of rock anisotropy measurement mechanism, because be provided with steady laser transmitter and voltage tester in this device, thus the change in voltage situation of rock sample under laser irradiates can be got, just can realize the measurement to rock anisotropy characteristic according to change in voltage situation.The anisotropy measuring rock by the way operates fairly simple, can not damage rock sample, and because being all encapsulated in a housing by these parts, is therefore also easy to carry.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a application's part, does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the rock anisotropy measurement mechanism of the utility model embodiment;
Fig. 2 is the using method process flow diagram of the rock anisotropy measurement mechanism of the utility model embodiment;
Fig. 3 is the rock sample schematic diagram of the utility model embodiment;
Fig. 4 is the rock distribution of electrodes of the utility model embodiment and concrete test case schematic diagram;
Fig. 5 is that the rock photoelectric characteristic of the utility model embodiment characterizes anisotropy schematic diagram.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described in further details.At this, exemplary embodiment of the present utility model and illustrating for explaining the utility model, but not as to restriction of the present utility model.
Inventor considers, can pass through detecting technique, utilize steady laser to excite to obtain the photosignal of rock, by the analysis of the photosignal to rock, can obtain the anisotropic properties of rock.
Based on above-mentioned thought, in this example, provide a kind of rock anisotropy measurement mechanism, this device realizes the measurement to rock photoelectric characteristic parameter by photosignal, thus based on optical means, characterize the anisotropic properties of rock, main feature is: detection is simple, measurement cost is low, and to sample rock not damaged, stronger to adaptive capacity to environment, respond sensitive, contribute to realizing the real-time detection to rock sample, be easy to carry.
As shown in Figure 1, this rock anisotropy measurement mechanism comprises:
Housing 101;
Steady laser transmitter 102, is positioned at housing 101, for launching the laser signal be radiated on rock sample;
Sample cell 103, is arranged on housing 101, and is positioned at the light path center of steady laser transmitter 102, for placing rock sample;
Power supply 104, is positioned at housing 101, for providing electric current for the rock sample be placed on sample cell;
Voltage tester 105, for testing the voltage of the electric signal that described rock sample produces under laser irradiates, the change in voltage of the electric signal produced under laser irradiates by described rock sample shows, wherein, described change in voltage is used for analyzing the anisotropic properties of described rock sample.
In the above-described embodiments, provide a kind of rock anisotropy measurement mechanism, because be provided with steady laser transmitter, power supply and voltage tester in this device, thus the change in voltage situation of rock sample under laser irradiates can be got, just can realize the measurement to rock anisotropy characteristic according to change in voltage situation.The anisotropy measuring rock by the way operates fairly simple, and can not damage rock sample, further, because being all encapsulated in a housing by these parts, is therefore also easy to carry.
Above-mentioned steady laser transmitter 102 can select 532nm wavelength laser transmitter, because this generating laser hot spot is less, and power can suitably regulate, but it should be noted that, above-mentioned 532nm wavelength laser transmitter is only a kind of preferred embodiment, the generating laser of other wavelength all right, such as 808nm wavelength laser transmitter, 1064nm wavelength laser transmitter etc.
Concrete, because need to measure the change in voltage situation of rock sample when different angles, sample cell 103 can be set to can angled draw-in groove, like this when needing the change in voltage measuring rock sample different angles, change angle by means of only draw-in groove, operate more convenient.
As long as above-mentioned power supply can for rock sample provide stable electric current device can, in this no limit.
Because be provided with power supply and voltage tester in said apparatus, this just makes rock sample need to be connected with voltage tester 105 with power supply 104 simultaneously, also just need on sample cell, arrange 4 electrodes, two for being connected with voltage tester, two for being connected with power supply, in order to realize contacting better and measure, electrode and the rock sample on sample cell need directly to contact.
In order to realize the more efficiently record of data and analyzing and processing, can external corresponding computer software, or increase a processor, realize the real time record of data, contrast and preservation, such as, can arrange a processor in housing, this processor is connected with voltage tester, the change in voltage situation of the electric signal shown on real time record voltage tester, and analyze according to the anisotropic properties of change in voltage situation to described rock sample of record.Consider and rock anisotropy measurement mechanism is set to portable, preferably can increase a small-sized processor in a device, this processor can directly process data, also can increase wireless module in this processor, data is sent to outside device and process.
Further, this device can be set to hand-held, so just can carry with, use more convenient, mobility is stronger, during specific implementation, this rock anisotropy characteristic measuring device can manufacture according to following size: long 500mm ~ 800mm, wide 300mm ~ 500mm, high 150mm ~ 300mm, thus realize portable demand, the measurement of rock anisotropy characteristic can be carried out at any time.
Above-mentioned rock anisotropy characteristic measuring device can carry out the measurement of rock anisotropy characteristic in such a way, as shown in Figure 2, comprising:
Step 201: be placed in by rock sample on sample cell, adjusts the light path center that described rock sample is positioned at steady laser transmitter;
Step 202: open described steady laser transmitter, power supply and voltage tester;
Step 203: record the change in voltage situation that described voltage tester shows;
Step 204: the angle adjusting described rock sample, when being recorded in different angles, the change in voltage situation that described voltage tester shows;
Step 205: change in voltage situation corresponding when being positioned at different angles according to the described rock sample obtained, analyzes the anisotropic character of described rock sample.
Be described with the anisotropic properties measurement mechanism of a specific embodiment to above-mentioned rock below, but it should be noted that this specific embodiment is only to better the utility model is described, do not form improper restriction of the present utility model.
In this example, propose a kind of apparatus and method being measured rock anisotropy characteristic parameters by steady laser, utilize the interaction of steady laser and rock, obtain the photoelectric characteristic of rock, and then analyze rock anisotropy characteristic, this apparatus structure is simple, be easy to operation and be easy to carry.
This system comprises: steady laser transmitter, constant current source, voltage tester, can carry out the sample cell of angular setting, and the wire detected for photosignal and electrode, and the using method of this device comprises:
Step 1: be positioned in sample cell by rock sample to be measured, adjustment sample to having good contact with electrode, and is connected with voltage tester with constant current source by sample cell.
Step 2: open steady laser transmitter, steady laser is made to be radiated on sample, photoelectric effect is produced in rock, the situation of change of corresponding photosignal can be detected by the voltage tester be connected to sample, further, by rotating sample angle, to obtain the change of photoelectric signal situation of rock sample in different angles, the anisotropic properties of rock sample can be characterized to the situation of change analysis of photosignal during different angles.
When concrete enforcement, by increasing the irradiated area of beam expanding lens adjustment laser, and then photosignal can be modulated, the real time record of data, contrast and preservation can also be realized by external corresponding computer software.
Concrete, as shown in Figure 3, wherein horizontal stripe represents bed plane direction to the rock sample size of placing in anisotropy detector.
The distribution of rock sample top electrode and concrete test case as shown in Figure 4, wherein, position 1,2 lines are bed plane direction, 4 solid dot are on line expressed as 4 point electrodes in sample cell, are connected with power supply (such as constant current source) outermost layer 2 between 4 point electrodes equidistantly, 2, centre for carrying out voltage measurement, thus can obtain the photoconductive situation of change of rock sample.Position 3,4 lines are and bed plane angle 45 ° of directions, position 5, and 6 lines are and bed plane angle 90 ° of directions, and wherein 4 hollow dots are 4 point electrodes, and concrete test process just can be measured according to the method described above.
Be rock sample as shown in Figure 5 in the photoconductive direction of measurement and sample rock bedding angle be 0 °, 45 °, result when 90 °, in figure, photoconductive unit is 10-9 Siemens (Siemens is the inverse of unit of resistance ohm).Can find that the angle of angle is different by Fig. 5, measure the photoconduction drawn also different, and have obvious regularity, this just shows that photoconduction can characterize the anisotropic character of rock preferably.
Multiple test position can be selected when specific implementation, such as: choose rock angle be 0 °, 10 °, 20 °, 30 ° until 90 °, measure once at interval of 10 °, but it should be noted that above-mentioned to be spaced apart example with 10 ° be only to better the utility model is described, other angle can also be measured, select other interval, the application does not limit this.
Characterize rock anisotropy by photoelectric characteristic mentioned in this example, implement fairly simple, and device is easy to carry, measurement cost is low, to sample rock not damaged, comparatively strong to adaptive capacity to environment, in oil-gas exploration and exploitation, there is directive significance and actual application value.
From above description, can find out, the utility model embodiment achieves following technique effect: provide a kind of rock anisotropy measurement mechanism, because be provided with steady laser transmitter and voltage tester in this device, thus the change in voltage situation of rock sample under laser irradiates can be got, just can realize the measurement to rock anisotropy characteristic according to change in voltage situation.The anisotropy measuring rock by the way operates fairly simple, and can not damage rock sample, further, because being all encapsulated in a housing by these parts, is therefore also easy to carry.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model embodiment can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a rock anisotropy measurement mechanism, is characterized in that, comprising:
Housing;
Steady laser transmitter, is positioned at described housing, for launching the laser signal be radiated on rock sample;
Sample cell, is positioned on described housing, and is positioned at the light path center of described steady laser transmitter, for placing rock sample;
Power supply, is positioned at described housing, for providing electric current for the rock sample be placed on described sample cell;
Voltage tester, for testing the voltage of the electric signal that described rock sample produces under laser irradiates, the change in voltage of the electric signal produced under laser irradiates by described rock sample shows, wherein, described change in voltage is used for analyzing the anisotropic properties of described rock sample.
2. device as claimed in claim 1, it is characterized in that, described sample cell is can angled draw-in groove.
3. device as claimed in claim 1, it is characterized in that, described sample cell is provided with electrode, and described electrode is connected with voltage tester by wire, and described electrode contacts with the rock sample on sample cell.
4. device as claimed in claim 1, it is characterized in that, described power supply is constant current source.
5. device as claimed in claim 1, it is characterized in that, also processor is provided with in described housing, be connected with described voltage tester, the change in voltage situation of the electric signal shown on voltage tester described in real time record, and analyze according to the anisotropic properties of change in voltage situation to described rock sample of record.
6. device as claimed in claim 1, it is characterized in that, described steady laser transmitter is 532nm wavelength laser transmitter.
7. the device according to any one of claim 1 to 6, is characterized in that, described rock anisotropy measurement mechanism is hand-held.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538338.8U CN204086123U (en) | 2014-09-18 | 2014-09-18 | Rock anisotropy measurement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420538338.8U CN204086123U (en) | 2014-09-18 | 2014-09-18 | Rock anisotropy measurement mechanism |
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| CN204086123U true CN204086123U (en) | 2015-01-07 |
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| CN201420538338.8U Expired - Fee Related CN204086123U (en) | 2014-09-18 | 2014-09-18 | Rock anisotropy measurement mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215583A (en) * | 2014-09-18 | 2014-12-17 | 中国石油大学(北京) | Rock anisotropy measurement device and application method thereof |
| CN108896381A (en) * | 2016-12-26 | 2018-11-27 | 秦燕雯 | A kind of Rock Mechanics Test device |
-
2014
- 2014-09-18 CN CN201420538338.8U patent/CN204086123U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215583A (en) * | 2014-09-18 | 2014-12-17 | 中国石油大学(北京) | Rock anisotropy measurement device and application method thereof |
| CN108896381A (en) * | 2016-12-26 | 2018-11-27 | 秦燕雯 | A kind of Rock Mechanics Test device |
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| 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: 20150107 Termination date: 20180918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |