CN103543048A - Preparation mould for standard manual simulated rock core test piece - Google Patents
Preparation mould for standard manual simulated rock core test piece Download PDFInfo
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- CN103543048A CN103543048A CN201310415312.4A CN201310415312A CN103543048A CN 103543048 A CN103543048 A CN 103543048A CN 201310415312 A CN201310415312 A CN 201310415312A CN 103543048 A CN103543048 A CN 103543048A
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Abstract
The invention provides a preparation mould for a standard manual simulated rock core test piece. The preparation mould for the manual simulated rock core test piece comprises a test piece pressing head, a sleeve, a rock core valve, a mould filling base and a tamping tool. The preparation mould is simple and convenient in preparation method and is convenient to operate; three mechanical properties including compressive strength, elasticity modulus and Poisson ratio of a soft rock can be simulated.
Description
Technical field
The present invention relates to the mould of preparing of a kind of mould of preparing of manual simulation's rock core test specimen, particularly a kind of standard manual simulation's rock core test specimen.
background technology
Now, in the exploratory development process of the land and marine oil and gas of China, the situation that runs into crumbly rock is more and more.But because the mechanical strength of crumbly rock is little, distortion is large, thing followed problem is the difficult acquisition of test sample, or the excessive test sample that makes of disturbance has lost representativeness during sampling.For cementing a little less than these, stratiform or fissured rock, the success ratio of coring is extremely low, even if obtain complete rock core, the impact of damage is also very remarkable to the change of rock property.
Summary of the invention
The present invention provides manual simulation's rock core test material preparation mould of the true soft rock of a kind of laboratory simulation for above-mentioned defect.
To achieve these goals, a first aspect of the present invention provides a kind of preparation standard manual simulation rock core test material preparation mould.
According to a set of standard manual simulation's rock core test piece mould of first aspect present invention, comprise test specimen pressure head, sleeve, rock core lobe, dress mould base, compacting instrument, wherein rock core lobe is that encapsulation is in sleeve, in the cylindrical space that test specimen pressure head encapsulation forms at rock core lobe, after rock core lobe and the combination of test specimen pressure head, be nested in dress mould base, mortar is inserted in the formed cylindrical space of rock core lobe, mortar is inserted in process and is needed to carry out simple compacting with compacting instrument, mortar is inserted to certain altitude, pack test specimen pressure head into, from bottom, take out dress mould base.
Preferably, the quantity of described test specimen pressure head is two.
Preferably, the quantity of described rock core lobe is two
Preferably, the quantity of described sleeve is one.
Preferably, the quantity of described mold base is one.
Preferably, the quantity of described compacting instrument is one.
Preferably, within described rock core lobe is nested in sleeve, and can be free to slide.
Preferably, free endwisely slipping along cylindrical space in the cylindrical space that described test specimen pressure head can form at two rock core lobes.
Preferably, described dress mould base is cylinder concave station, and the diameter of two rock core lobe composition cylindrical spaces is identical with the minimum diameter of dress mould base.
Preferably, the maximum inner diameter of described dress mould base is identical with the columniform maximum gauge that two rock core lobes form, and two rock core lobe combinations can be nested in certain depth in dress mould base.
Preferably, the maximum gauge of described dress mould base is identical with sleeve maximum gauge, and it is nested that sleeve can combine by rock core lobe, and sleeve can be stood upright on dress mould base.
Preferably, the maximum gauge of described compacting instrument is slightly less than the diameter of the cylindrical space that two rock core lobes form.
Preferably, being axially free to slide of the cylindrical space that described compacting instrument can form along two rock core lobes.
Preferably, the cylindrical space that described two rock core lobes form is for the filling of mortar.
Preferably, the fit system of described test specimen pressure head and two rock core lobes is clearance fit.
Preferably, the fit system of described rock core lobe and sleeve is clearance fit.
Preferably, described test specimen pressure head wall surface is provided with scale mark.
Preferably, the material of described manual simulation's test piece mould is 304 stainless steels.
Second aspect present invention provides the using method of a set of standard manual simulation's rock core test piece mould, and it comprises the following steps:
A. according to the material mixture ratio setting, carry out material weighing;
B. mortar evenly mixes;
C. mortar is inserted test piece mould;
D. insert in mortar process and constantly with compacting instrument, carry out simple compacting;
E. mortar is filled into after predetermined depth, and top test specimen pressure head is installed;
F. the dress mould base of bottom is unloaded;
G. mould parts being installed is put into add and is presented a theatrical performance as the last item on a programme;
H. mould is loaded to preset pressure;
I. constantly supplement hydraulic pressure, after tensimeter is stable, not in pressurization;
J. after pressure-loaded certain hour, take apart a die;
K. test specimen pressure head is taken off, after test specimen solidifies certain hour, carry out the test specimen demoulding.
L. after the demoulding, test specimen is put in the cool and naturally dried in the shade a period of time.
Preferably, above step is carried out successively, and in completing steps j, step k, step l, repeating step a～step I, to improve the preparation efficiency of manual simulation's rock core test specimen.
Preferably, a set of standard manual simulation's rock core mould that described test piece mould provides for first aspect present invention.
Preferably, in the preparation flow of described manual simulation's rock core test specimen, total many covers standard manual simulation rock core mould carries out test material preparation operation.
Preferably, described test specimen pressure head wall surface is provided with scale mark.
Preferably, described manual simulation's rock core height of specimen is controlled within the specific limits by the scale mark of test specimen pressure head.
More multioperation is all known for those of ordinary skills, repeats no more.
The technical scheme of manual simulation's rock core test material preparation method that second aspect present invention provides comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection scope of the present invention.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of a set of standard manual simulation's rock core test piece mould of first aspect present invention;
Fig. 2 is the complete mould schematic diagram of filled with mortar before precharge.
In Fig. 1, Fig. 2, numeral represents respectively:
1-test specimen pressure head 2-rock core lobe 3-sleeve
4-dress mould base 5-compacting instrument
Embodiment
For technical characterictic of the present invention, object and effect being had more clearly, understand, now contrast accompanying drawing explanation the specific embodiment of the present invention.
Fig. 1 is according to the structural representation of a set of standard manual simulation's rock core test piece mould of first aspect present invention, in this preparation method, a set of standard manual simulation's rock core test piece mould comprises test specimen pressure head 1, rock core lobe 2, sleeve 3, mold base 4, compacting instrument 5.
In this preparation method, the quantity of described test specimen pressure head 1 is two.
In this preparation method, the quantity of described rock core lobe 2 is two
In this preparation method, the quantity of described sleeve 3 is one.
In this preparation method, the quantity of described dress mould base 4 is one.
In this preparation method, the quantity of described compacting instrument 5 is one.
In this preparation method, within described rock core lobe 2 is nested in sleeve 3, and can be free to slide.
In this preparation method, free endwisely slipping along cylindrical space in the cylindrical space that described test specimen pressure head 1 can form at two rock core lobes 2.
In this preparation method, described dress mould base 5 is cylinder concave station, and the diameter of two rock core lobe 2 composition cylindrical spaces is identical with the minimum diameter of dress mould base 5.
In this preparation method, the maximum inner diameter of described dress mould base 5 is identical with the columniform maximum gauge that two rock core lobes 2 form, and two rock core lobe 2 combinations can be nested in certain depth in dress mould base.
In this preparation method, the maximum gauge of described dress mould base 5 is identical with sleeve 3 maximum gauges, sleeve can 3 nested by 2 combinations of rock core lobe, sleeve 3 can be stood upright on dress mould base 5.
In this preparation method, the maximum gauge of described compacting instrument 5 is slightly less than the diameter of the cylindrical space that two rock core lobes 3 form.
In this preparation method, being axially free to slide of the cylindrical space that described compacting instrument 5 can form along two rock core lobes 3.
In this preparation method, the cylindrical space that described two rock core lobes 3 form is for the filling of mortar.
In this preparation method, the fit system of described test specimen pressure head 1 and two rock core lobes 3 is clearance fit.
In this preparation method, described rock core lobe 3 is clearance fit with the fit system of sleeve 2.
In this preparation method, described mold base 4 is clearance fit with the fit system of rock core lobe 3, sleeve 2.
In this preparation method, described test specimen pressure head 1 wall surface is provided with scale mark.
In this preparation method, the material of described test specimen pressure head 1, sleeve 2, rock core lobe 3, mold base 4 and compacting instrument 5 is 304 stainless steels.
Fig. 2 is the complete mould schematic diagram of filled with mortar before precharge.In this preparation method, pressure is carried in respectively on two test specimen pressure heads 1, and the mortar in rock core lobe 3 is carried out to compacting.Moisture unnecessary in test specimen can flow out the gap between test specimen pressure head 1 and rock core lobe 3.
The technical scheme of the drilled dry coring crown with pressure described in the present embodiment comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection scope of the present invention.
The invention provides a kind of preparation method of manual simulation's rock core test specimen, the preparation method of described manual simulation's rock core test specimen for example comprises: step 1,2,3,4,5,6,7,8.
1, according to the consumption of the proportioning material of manual simulation's rock core test specimen of design, carry out the weighing of material.
2, after weighing, dusty material is dry mixed and is closed, after dusty material stirs, add 1% BAS to carry out wet mixing and close.
3, the mortar being stirred is packed into two cover standard manual simulation rock core moulds, put into after suitable mortar at every turn, with compacting instrument, carry out tamping, in tamping process, by press setter tool rotating down pressing, mortar is spread uniformly into mould.(during tamping, should note: tamping object is to occur bubble in the rock core in order not make to prepare, in order to avoid affect test specimen intensity)
4, filled with mortar to test specimen pressure head is entered after mould certain depth, hold mould, take off dress mould base.
5, in test specimen pressure process, compacting along with test specimen, until reach in abundant consolidation process, need the relatively constant on-load pressure of maintenance, in whole on-load pressure process, the size of on-load pressure and duration are all to determine according to the relevant nature of manual simulation's rock core test specimen.(noting: in on-load pressure process, along with the increase of the on-load pressure value of initial designs, the fixed time also postpones thereupon completely, should guarantee that complete monitoring pressure changes, and keeps relatively constant on-load pressure)
6, after test specimen loads certain hour, repeating step 1～4, carries out the test specimen filling work of next group.When the test specimen filling work of next group completes, the load time reaches one hour.Mould is unloaded, and after test specimen pressure head is screwed out, next group mould repeats step and plays 4.By the mould unloading, place on one side, after fully solidifying, test specimen (while solidifying, should note: place certain hour, note avoiding solar radiation), carry out next step demoulding work.
7, after the test specimen demoulding, first, record the demould time of test specimen, then, place shady and cool place and maintain, wait for when test specimen surface has not had moisture, test specimen is carried out to label.Mould after the demoulding is cleaned up, for the test specimen filling process of next group is prepared.
8, after test specimen is made the demoulding, lucifuge is carried out maintenance in the cool.
More multioperation is all known for those of ordinary skills, repeats no more.
Manual simulation's rock core test piece mould described in this preparation method, for the preparation of manual simulation's rock core test specimen, operation is simple, and prepared rock core test specimen Reality simulation rock core is comparatively similar.
The technical scheme of the manual simulation's rock core test material preparation method described in this preparation method comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection scope of the present invention.
Claims (9)
1. a standard manual simulation rock core test material preparation method, it comprises the steps:
A. according to the material mixture ratio setting, carry out material weighing;
B. mortar evenly mixes;
C. mortar is inserted test piece mould;
D. insert in mortar process and constantly with compacting instrument, carry out simple compacting;
E. mortar is filled into after predetermined depth, and top test specimen pressure head is installed;
F. the dress mould base of bottom is unloaded;
G. mould parts being installed is put into add and is presented a theatrical performance as the last item on a programme;
H. mould is loaded to preset pressure;
I. constantly supplement hydraulic pressure, after tensimeter is stable, not in pressurization;
J. after pressure-loaded certain hour, take apart a die;
K. test specimen pressure head is taken off, after test specimen solidifies certain hour, carry out the test specimen demoulding.
1. after the demoulding, test specimen is put in the cool and naturally dried in the shade a period of time.
It is characterized in that, above step is carried out successively.
2. standard manual simulation rock core test material preparation method as claimed in claim 1, is characterized in that: adopt manual simulation's rock core test piece mould to prepare manual simulation's rock core test specimen.
3. standard manual simulation rock core test material preparation method as claimed in claim 2, is characterized in that: the mould of preparing of described manual simulation's rock core test specimen comprises test specimen pressure head, rock core lobe, sleeve, dress mould base and compacting instrument.
4. standard manual simulation rock core test material preparation method as claimed in claim 3, is characterized in that: being axially free to slide of the cylindrical space that described compacting instrument can form along two rock core lobes.
5. standard manual simulation rock core test material preparation method as claimed in claim 3, is characterized in that: the cylindrical space that described two rock core lobes form is for the filling of mortar.
6. standard manual simulation rock core test material preparation method as claimed in claim 4, is characterized in that: the fit system of described test specimen pressure head and two rock core lobes is clearance fit.
7. standard manual simulation rock core test material preparation method as claimed in claim 4, is characterized in that: the fit system of described rock core lobe and sleeve is clearance fit.
8. standard manual simulation rock core test material preparation method as claimed in claim 1, is characterized in that: described test specimen pressure head wall surface is provided with scale mark.
9. standard manual simulation rock core test material preparation method as claimed in claim 1, is characterized in that: the maximum gauge of described dress mould base is identical with sleeve maximum gauge, and it is nested that sleeve can combine by rock core lobe, and sleeve can be stood upright on dress mould base.
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| CN201310415312.4A CN103543048A (en) | 2013-09-06 | 2013-09-06 | Preparation mould for standard manual simulated rock core test piece |
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| CN201310415312.4A CN103543048A (en) | 2013-09-06 | 2013-09-06 | Preparation mould for standard manual simulated rock core test piece |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543047A (en) * | 2013-09-06 | 2014-01-29 | 中国石油大学(北京) | Preparation method for standard manual simulated rock core test piece |
| CN105300771A (en) * | 2015-11-27 | 2016-02-03 | 中国科学院武汉岩土力学研究所 | Manufacturing die of low-intensity similar-material standard test pieces |
| CN105865868A (en) * | 2016-04-01 | 2016-08-17 | 四川大学 | Artificial preparation method for rock sample with structural surface in different directions |
| CN108709783A (en) * | 2018-05-17 | 2018-10-26 | 长江大学 | Artificial cores preparation facilities and preparation method thereof |
| CN109141996A (en) * | 2018-07-02 | 2019-01-04 | 中国科学院广州能源研究所 | Gas hydrates core preparing device |
| CN110646273A (en) * | 2019-09-02 | 2020-01-03 | 山东大学 | Mold for preparing rock-soil model test specimen and preparation method |
| CN111220466A (en) * | 2019-11-28 | 2020-06-02 | 河南牛帕力学工程研究院 | Road compressive strength detection device and detection method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543047A (en) * | 2013-09-06 | 2014-01-29 | 中国石油大学(北京) | Preparation method for standard manual simulated rock core test piece |
| CN105300771A (en) * | 2015-11-27 | 2016-02-03 | 中国科学院武汉岩土力学研究所 | Manufacturing die of low-intensity similar-material standard test pieces |
| CN105865868A (en) * | 2016-04-01 | 2016-08-17 | 四川大学 | Artificial preparation method for rock sample with structural surface in different directions |
| CN105865868B (en) * | 2016-04-01 | 2018-05-15 | 四川大学 | The artificially preparation method of the rock sample of structural plane containing different directions |
| CN108709783A (en) * | 2018-05-17 | 2018-10-26 | 长江大学 | Artificial cores preparation facilities and preparation method thereof |
| CN109141996A (en) * | 2018-07-02 | 2019-01-04 | 中国科学院广州能源研究所 | Gas hydrates core preparing device |
| CN110646273A (en) * | 2019-09-02 | 2020-01-03 | 山东大学 | Mold for preparing rock-soil model test specimen and preparation method |
| CN110646273B (en) * | 2019-09-02 | 2020-11-06 | 山东大学 | Mold for preparing rock-soil model test specimen and preparation method |
| CN111220466A (en) * | 2019-11-28 | 2020-06-02 | 河南牛帕力学工程研究院 | Road compressive strength detection device and detection method |
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