CN203772896U - Pneumatic type core clamper used for rock resistivity testing - Google Patents
Pneumatic type core clamper used for rock resistivity testing Download PDFInfo
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- CN203772896U CN203772896U CN201320729782.3U CN201320729782U CN203772896U CN 203772896 U CN203772896 U CN 203772896U CN 201320729782 U CN201320729782 U CN 201320729782U CN 203772896 U CN203772896 U CN 203772896U
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- pneumatic type
- type core
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- holding unit
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Abstract
The utility model discloses a pneumatic type core clamper used for rock resistivity testing. The pneumatic type core clamper includes automatic telescoping clamps which are located at both sides of a test sample and can clamp the test sample through moving inwards simultaneously; the automatic telescoping clamps adopt an air source as a thrust, so that clamping forces borne by end surfaces at two sides of a core can be stable and uniform; the test sample is arranged on a sample supporting frame arranged below; the sample supporting frame is slidingly connected into a slide groove arranged below; each automatic telescoping clamp comprises a cylinder body and a piston arranged in the cylinder body, wherein the piston protrudes out to reveal a piston rod for clamping the test item; end portions of the piston rods are provided with insulating partition plates; the piston rod divides the cylinder body into two chambers; an air source switch is arranged between the two chambers and the air source; and a pressure valuator is arranged between the air source switch and the air source. With the pneumatic type core clamper of the utility model adopted, test result differences brought about by different experiences and manual pressurizing operation of operators can be effectively avoided.
Description
Technical field
The utility model relates to core clamping device, especially a kind of pneumatic type core holding unit for rock resistivity test.
Background technology
In the indoor rock resistivity parameter measurement of petroleum industry, many to the influence factor of experimental results accuracy.Due in measuring process, the rock core of oil-containing, water is exposed in air on the one hand, and profit volatilization has considerable influence to measurement result, therefore needs to take to arrange to improve to shorten test process; The 2nd, the difference of different operating personnel working experience and reperformance test causes measurement result inconsistent, therefore needs to reduce the human factor impact that manual operation brings.
Summary of the invention
The purpose of this utility model is to provide a kind of pneumatic type core holding unit for rock resistivity test, use source of the gas to realize the suffered holding force stable and uniform of rock core both sides end face as thrust, and can realize according to the degree of consolidation of laboratory sample (loose or fine and close) fine adjustment of different holding forces by valuator, effectively avoid different operating personnel experience difference and manual pressure to operate the difference of the test result of bringing.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, a kind of pneumatic type core holding unit for rock resistivity test, comprise the automatic telescopic fixture that is positioned at laboratory sample both sides, clamp test specimen by motion to the inside simultaneously, described automatic telescopic fixture adopts source of the gas to realize the holding force of the suffered stable and uniform of rock core both sides end face as thrust.
Described test specimen is placed on the sample carrier of below, and sample carrier slidingtype is connected in the chute of below.
Described automatic telescopic fixture comprises cylinder body and is arranged on the piston in cylinder body, the protruding piston rod that is used for clamping experiment article of piston, and piston rod end is provided with insulating barrier.
On described insulating barrier, be provided with potential electrode.
Described piston is divided into two chambers cylinder body, all connects the source of the gas with digital display manometer by tracheae, and the chamber in described outside is the chamber that advances, and the chamber of inner side is for retreating chamber.
Between described two chambers and source of the gas, gas source switch is set, between gas source switch and source of the gas, is also provided with pressure valuator, realize the fine adjustment of different holding forces by valuator according to the degree of consolidation of laboratory sample.
The described chamber setting of the advancing operation valve that advances, described in retreat chamber setting and retreat operation valve, and between digital display manometer and two chambers, be provided with power switch and control respectively and advance operation valve and retreat the advance and retreat switch of operation valve.
Compared to prior art, the utlity model has following beneficial effect:
Pneumatic type core holding unit is mainly divided into two parts, and the one, be placed in pneumatic type rock core fixture on pedestal, the 2nd, be placed in the pressure stabilization system on upright panel.Pneumatic type rock core fixture is mainly made up of chute, automatic telescopic fixture, insulating barrier, rock core bracket, potential electrode, power switch etc., and pressure stabilization system is made up of pressure governor (pressure range of adjustment is 0～1MPa), digital display manometer (precision is 0.01MPa) and gas source switch etc.Wherein chute is to move for ensureing that fixture and rock core bracket remain on a horizontal line, prevents dislocation; Insulating barrier has been realized effective insulation of conductive copper plate and periphery conducting medium, to ensure the accuracy of rock resistivity test result; Potential electrode has realized conductive copper plate and has been connected with the effective of extraneous measuring circuit; The automatic telescopic fixture of both sides is respectively the piston body with propelling/rewind function (dependence move forward and backward operation valve) with cylinder, piston body termination is connected with insulating barrier, switch on and provide after source of the gas, both sides dividing plate can advance to center along relative direction simultaneously, realize the even clamping to rock core on rock core bracket, and can be by oppositely retreating to take off core sample.
The utility model utilizes the fixture that source of the gas is core holding unit that even thrust is provided, and having realized rock core two ends end face can uniform stressed, has avoided the each manual pressure dynamics of different operating personnel inequality that the inaccurate situation of rock core resistivity measurement result is occurred.The utility model, by pressure valuator, carries out the fine adjustment of different holding forces for different cementing degree rock core, avoid the damage to experiment test sample.Use of the present utility model can be shortened aerial open-assembly time of laboratory sample greatly, has reduced the impact of volatilize fluid on test result, has ensured the accuracy of rock resistivity test result.
Brief description of the drawings
Fig. 1 is the structural drawing that plane heat source method of the present utility model is measured the clamping device of the hot physical property of rock core.
In figure: 1-digital display manometer; 2-pressure valuator; 3-power switch; The 4-switch of advancing and retreat; 5-gas source switch; 6-laboratory sample; The 7-operation valve that advances; 8-retreats operation valve; 9-insulating barrier; 10-sample carrier; 11-potential electrode; 12-automatic telescopic fixture; 13-chute.
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
As shown in Figure 1, a kind of pneumatic type core holding unit for rock resistivity test, comprise the automatic telescopic fixture 12 that is positioned at laboratory sample both sides, clamp test specimen 6 by motion to the inside simultaneously, described automatic telescopic fixture adopts source of the gas to realize the holding force of the suffered stable and uniform of rock core both sides end face as thrust.Pneumatic Pressure mode is convenient, fast, has saved the test duration, has also effectively avoided the difference of the test result that different operating personnel experience difference brings.Described test specimen is placed on the sample carrier 10 of below, and sample carrier slidingtype is connected in the chute 13 of below.
Described automatic telescopic fixture comprises cylinder body and is arranged on the piston in cylinder body, the protruding piston rod that is used for clamping experiment article of piston, and piston rod end is provided with insulating barrier 9.On described insulating barrier, be provided with potential electrode 11.Described piston is divided into two chambers cylinder body, all connects the source of the gas with digital display manometer 1 by tracheae, and the chamber in described outside is the chamber that advances, and the chamber of inner side is for retreating chamber.Between described two chambers and source of the gas, gas source switch 5 is set, between gas source switch and source of the gas, is also provided with pressure valuator 2, realize the fine adjustment of different holding forces by valuator according to the degree of consolidation of laboratory sample.The described chamber setting of the advancing operation valve 7 that advances, described in retreat chamber setting and retreat operation valve 8, and between digital display manometer and two chambers, be provided with power switch 3 and control respectively and advance operation valve and retreat the advance and retreat switch 4 of operation valve.
1, equipment is connected respectively with source of the gas and power supply, and the electrode wires of resistivity measuring instrument is connected in the potential electrode of pneumatic type core holding unit.
2, turn on the power switch successively, gas source switch, digital display manometer is returned to zero; The insulation situation of checkout facility.
3, rotation pressure valuator knob, sets a suitable force value.
4, by the rock core rapid water placing flat that contains fluid to rock core bracket, the key of advancing and retreat is pressed to the position of " entering ".
5, pneumatic type fixture advances to center, clamps stable rock core, reads the reading of outer meeting resistance rate measuring instrument.
6, the key of advancing and retreat is pressed to the position of " moving back ", and pneumatic type fixture is return backward, and rock core is taken out.
7, after being completed, pressure valuator knob is adjusted to " 0 ", lays down bleed pressure, close gas source switch and power switch.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (7)
1. the pneumatic type core holding unit for rock resistivity test, it is characterized in that, comprise the automatic telescopic fixture that is positioned at laboratory sample both sides, clamp test specimen by motion to the inside simultaneously, described automatic telescopic fixture adopts source of the gas to realize the holding force of the suffered stable and uniform of rock core both sides end face as thrust.
2. a kind of pneumatic type core holding unit for rock resistivity test according to claim 1, is characterized in that, described test specimen is placed on the sample carrier of below, and sample carrier slidingtype is connected in the chute of below.
3. a kind of pneumatic type core holding unit for rock resistivity test according to claim 1, it is characterized in that, described automatic telescopic fixture comprises cylinder body and is arranged on the piston in cylinder body, the protruding piston rod that is used for clamping experiment article of piston, piston rod end is provided with insulating barrier.
4. a kind of pneumatic type core holding unit for rock resistivity test according to claim 3, is characterized in that, on described insulating barrier, is provided with potential electrode.
5. a kind of pneumatic type core holding unit for rock resistivity test according to claim 3, it is characterized in that, described piston is divided into two chambers cylinder body, all connect the source of the gas with digital display manometer by tracheae, the chamber in described outside is the chamber that advances, and the chamber of inner side is for retreating chamber.
6. a kind of pneumatic type core holding unit for rock resistivity test according to claim 5, it is characterized in that, between described two chambers and source of the gas, gas source switch is set, between gas source switch and source of the gas, be also provided with pressure valuator, realize the fine adjustment of different holding forces by valuator according to the degree of consolidation of laboratory sample.
7. a kind of pneumatic type core holding unit for rock resistivity test according to claim 5, it is characterized in that, the described chamber setting of the advancing operation valve that advances, describedly retreat chamber setting and retreat operation valve, and between digital display manometer and two chambers, be provided with power switch and control respectively and advance operation valve and retreat the advance and retreat switch of operation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729782.3U CN203772896U (en) | 2013-11-19 | 2013-11-19 | Pneumatic type core clamper used for rock resistivity testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320729782.3U CN203772896U (en) | 2013-11-19 | 2013-11-19 | Pneumatic type core clamper used for rock resistivity testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772896U true CN203772896U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320729782.3U Expired - Fee Related CN203772896U (en) | 2013-11-19 | 2013-11-19 | Pneumatic type core clamper used for rock resistivity testing |
Country Status (1)
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| CN (1) | CN203772896U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987933A (en) * | 2015-02-11 | 2016-10-05 | 中国石油化工股份有限公司 | Measurement device for rock resistivity test and special-purpose electrode pad thereof |
| CN106198343A (en) * | 2016-06-29 | 2016-12-07 | 东北石油大学 | A kind of enclose pressure control device for rock core displacement test |
| CN106645304A (en) * | 2017-03-15 | 2017-05-10 | 中国石油大学(华东) | Resistivity measuring device for irregular rock samples |
| CN109557185A (en) * | 2018-12-21 | 2019-04-02 | 安徽理工大学 | Rock core fastener and core test equipment |
| CN110927410A (en) * | 2018-09-20 | 2020-03-27 | 中国石油化工股份有限公司 | Core holder for core resistivity detection |
| CN111796003A (en) * | 2020-08-21 | 2020-10-20 | 阳泉煤业（集团）股份有限公司 | Core resistivity measuring device and measuring method thereof |
-
2013
- 2013-11-19 CN CN201320729782.3U patent/CN203772896U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987933A (en) * | 2015-02-11 | 2016-10-05 | 中国石油化工股份有限公司 | Measurement device for rock resistivity test and special-purpose electrode pad thereof |
| CN106198343A (en) * | 2016-06-29 | 2016-12-07 | 东北石油大学 | A kind of enclose pressure control device for rock core displacement test |
| CN106198343B (en) * | 2016-06-29 | 2018-11-02 | 东北石油大学 | A kind of confining pressure control device for rock core displacement test |
| CN106645304A (en) * | 2017-03-15 | 2017-05-10 | 中国石油大学(华东) | Resistivity measuring device for irregular rock samples |
| CN110927410A (en) * | 2018-09-20 | 2020-03-27 | 中国石油化工股份有限公司 | Core holder for core resistivity detection |
| CN109557185A (en) * | 2018-12-21 | 2019-04-02 | 安徽理工大学 | Rock core fastener and core test equipment |
| CN111796003A (en) * | 2020-08-21 | 2020-10-20 | 阳泉煤业（集团）股份有限公司 | Core resistivity measuring device and measuring method 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20191119 |