CN104568545A - Manufacturing method of shale rock lamina - Google Patents
Manufacturing method of shale rock lamina Download PDFInfo
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- CN104568545A CN104568545A CN201510027702.3A CN201510027702A CN104568545A CN 104568545 A CN104568545 A CN 104568545A CN 201510027702 A CN201510027702 A CN 201510027702A CN 104568545 A CN104568545 A CN 104568545A
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Abstract
The invention belongs to the field of petroleum geology and particularly relates to a manufacturing method of a shale rock lamina. The manufacturing method of the shale rock lamina sequentially comprises the following steps: fixing a loose shale rock sample with glue; slicing for the first time; smoothing and polishing for the first time; sticking a shale sample; and slicing for the second time, and smoothing and polishing for the second time. By virtue of the shale rock lamina prepared by the method, the post-period pollution including damages of a shale microstructure, component loss, fluorescence interference and the like, caused by a slicing, grinding and polishing process and a glue fixing process, can be avoided, so that the aim of keeping original geological information in the shale sample is realized. The manufacturing method of the shale rock lamina has the advantages that the original information of the sample is protected, the amount of needed samples is small, the lamina manufacturing period is short and the like; and the manufacturing method lays a powerful foundation for subsequent microscopic petrography and microscopic fluorescence observation of the shale rock, and accuracy of all experiment test analysis.
Description
Technical field
The invention belongs to field of petroleum geology, particularly, relate to the method for making of a kind of shale rock qualification thin slice.
Background technology
Utilize before polarizing microscope carries out the research such as detailed microcosmic petrography and microscopic fluorescence observation to shale, first will carry out the making of thin slice to shale samples.Because the shale laminated structure of shale is grown, short texture, the technological processs such as current conventional petrographic thin section manufacturing process section and grinding easily cause this rock sample comparatively loosened of shale to be destroyed, especially easily cause its laminated structure of shale structural damage, for the loss avoiding its fragmentation to cause geological information, before making thin slice, first will carry out glue admittedly to rock sample, conventional loosened rock glue solid method mainly contains cooks glue method and the solid method of liquid glue glue soon quickly.Cook glue method soon quickly to need shale samples heating, drying easily to cause the organic composition in shale to be destroyed, simultaneously part glue add the destruction also easily causing original shale laminated texture and combination, and the microscopic fluorescence adding membership interference shale of some organic gel (as abies balsam) is observed.In addition, the features such as traditional microtome blade rotating speed is fast, vibration is large, cutting knife is thick, the primary structure of easy destruction shale, to cause to a certain extent in shale samples compose the loss of the original geological information deposited, affect the observation of shale lamination type and lamina syntagmatic under polarizing microscope.To this, the invention provides a kind of new shale petrographic thin section method for making, the defect of conventional fabrication method can be avoided, retain original geological information to greatest extent.
Summary of the invention
For overcoming the defect of prior art, the invention provides a kind of method for making of shale petrographic thin section, to avoid loss and the destruction to composing the original geological information deposited in shale samples, under follow-up mirror, strong basis is established in the observation of shale micromechanism.
For achieving the above object, the present invention is by the following technical solutions:
The method for making of shale petrographic thin section, comprises the following steps successively: carry out glue admittedly to loose shale rock sample; Cut into slices first; Polish first and polishing; Bonding die is carried out to shale samples; Secondary is cut into slices and secondary polishes and polishing.
Relative to prior art, the present invention has following beneficial effect:
1, the method for shale thin slice making provided by the invention, in slicing processes, adopt low speed precision gas cutting machine to carry out direct slicing to the original shale samples solid without the need to glue, low speed cutting technology is little to sample impulsive force, shale prototype structure can be protected to greatest extent, prevent it broken, and cutting knife is thin, joint-cutting is tiny, thickness is controlled, kerf loss rate is low, sample, without deformation and damage, is saved in cross section;
2, the method for shale thin slice making provided by the invention, the solid method of " 502 " glue glue is adopted for the shale samples needing glue solid, it is shorter and can avoid the Final pollutions such as shale microstructural damage, ingredients from lossing and fluorescence interference that the method realizes the time, reaches the object retaining original geological information in shale samples;
3, the present invention there is protection sample raw information, the advantage such as need sample size little and film-making cycle short.
Accompanying drawing explanation
Fig. 1 is the method for making schematic flow sheet of shale petrographic thin section of the present invention.
Embodiment
As shown in Figure 1, the method for making of shale petrographic thin section, comprises the following steps successively: carry out glue admittedly to loose shale rock sample; Cut into slices first; Polish first and polishing; Bonding die is carried out to shale samples; Secondary is cut into slices and secondary polishes and polishing.
" glue is carried out admittedly to loose shale rock sample " this step can be saved for the good shale samples of consolidation.
Carry out glue admittedly to loose shale samples, concrete grammar is as follows: be placed on glass plate by loose shale samples, drips several " 502 " glue on the surface at shale samples, " 502 " glue is made to infiltrate in shale rock sample, to state of saturation, wait 2 hours, until shale samples glue is solid.
To surgical glove should be put in the solid process of loose shale samples glue, skin is protected.
The method that shale rock sample is cut into slices first is as follows: adopt Buehler low speed precision gas cutting machine, adamas cutting knife thickness is 0.4mm, the section orientation of choose reasonable shale samples, utilize fixture and flange clamping shale samples, to cut into slices alignment of orientation cutting blade, after cutting mill to be cut works well, at the uniform velocity to advance with cutting sample to cutting blade direction with holder shale samples is evenly firmly slow, and Ultrasonic Cleaning is carried out to the tangent plane of cut shale samples, cleaning fluid is deionized water.
The liquid coolant of described cutting blade selects deionized water.
Described method for suppersonic cleaning is as follows: the water first loading the 2cm-3cm degree of depth in supersonic wave cleaning machine, then the deionized water that a small beaker loads the 2cm-3cm degree of depth is got, and small beaker is placed in supersonic wave cleaning machine, shale samples to be cleaned is put into beaker and is cleaned about 1 minute by opening power, to wash away landwaste residual in sample.
Polishing of tangent plane and polishing are carried out to the shale samples after section first, method is as follows: first select granularity to be that silit (SiC) powder of 1 μm and deionized water are slightly roughly ground shale samples tangent plane on a glass as silit (SiC) wetting agent, after treating sample corase grind, then granularity is selected to be that fine-grained carbon SiClx (SiC) the burnishing powder foot couple sample of 0.3 μm or 0.5 μm carries out polishing; During operation, utilize wash bottle to spray deionized water to soak burnishing powder, then sample is placed on simple glass plate and polishing is carried out to sample tangent plane, until tangent plane is smooth, without obvious cut, and slightly till reflecting effect; In whole lapping and polishing process, firmly want evenly, must guard against too quickly and destroy shale; After every grinding and polishing program together, all will carry out Ultrasonic Cleaning to sample immediately, take deionized water as cleaning fluid.
Described tangent plane carries out to shale samples polish with polishing process, surgical glove should be worn skin is protected.
Carry out bonding die to shale samples, method is as follows: to the adhesive surface of microslide with 600
#or 1000
#loose silit (SiC) abrasive powder or sand paper carry out throwing hair, a small amount of " 502 " glue of uniform application is respectively thrown on the one side of hair and shale samples tangent plane in advance at microslide, by bonding for two faces, flicking also gets rid of bubble in glue to ensure good combination between sample and microslide and to indicate sample number into spectrum with diamond pen at the another side of microslide, waits for 12 hours.
The described adhesive surface to microslide will carry out Ultrasonic Cleaning after throwing hair, take deionized water as cleaning fluid.
The gluing process of described bonding die need guarantee that the glue of sample tangent plane and slide surface is smeared evenly, and the glue smeared is too much unsuitable, in right amount, avoid being with bubble in the glue smeared, and choose reasonable gluing area.
The method of shale samples being carried out to secondary section is as follows: utilize the microslide fixture on Buehler low speed precision gas cutting machine and milscale to carry out secondary section to the shale samples after bonding die, rock sample is cut into the thin slice that thickness is about 0.3mm, and Ultrasonic Cleaning is carried out to the shale thin slice cut, take deionized water as cleaning fluid.
The cutting blade during section of described secondary should thinner than the thickness of blade used of cutting into slices first (can select the thinly-sliced cutter that 0.3mm is thick), and the cutting rotating speed of microtome can not (<500 turns too soon, in order to avoid during secondary section the swing of blade and Oscillation Amplitude excessive, cause shale samples to shake and come unstuck).
To guarantee that microslide is parallel with cutting blade in described secondary slicing processes, avoid cut shale thin slice to occur the phenomenon of became uneven.
In secondary slicing processes, the liquid coolant of cutting blade selects deionized water.
Secondary section after final polishing and polishing is carried out to made shale thin slice, its method with cut into slices first after the same to polishing with polishing program of shale samples tangent plane, do not repeat them here.Inspection for shale thin slice quality of finish is clean bright and micromechanism is high-visible is as the criterion under single polarizing microscope with thin slice.Finally polish with polishing after sheet thickness should be less than 0.05mm.
So far a complete shale petrographic thin section is made, and the thin slice prepared is enclosed in the sample sack or exsiccator that silica gel or other types of desiccants are housed immediately, and to be positioned over environment temperature be preserve in 19 DEG C ~ 22 DEG C temperature ranges.
Utilize said method to prepare shale petrographic thin section and can avoid the Final pollutions such as shale microstructural damage because causing in section, the solid process of abrasive polishing process and glue, ingredients from lossing and fluorescence interference, reach the object retaining original geological information in shale samples.The advantages such as the method for making of this shale petrographic thin section has protection sample raw information, need sample size little and film-making cycle short, the accuracy of the microlithofacies and microscopic fluorescence observation and every experimental test and analysis that can be follow-up shale samples establishes strong basis.
Claims (8)
1. a method for making for shale petrographic thin section, is characterized in that, comprises the following steps successively: carry out glue admittedly to loose shale rock sample; Cut into slices first; Polish first and polishing; Bonding die is carried out to shale samples; Secondary is cut into slices and secondary polishes and polishing.
2. the method for making of shale petrographic thin section according to claim 1, is characterized in that, before step rock sample is cut into slices first, also comprises and carries out the solid step of glue to loose shale rock sample.
3. the method for making of the shale petrographic thin section according to claim 1-2, it is characterized in that, glue is carried out admittedly to loose shale samples, concrete grammar is as follows: be placed on glass plate by loose shale samples, drip " 502 " glue on the surface at shale samples, make " 502 " glue infiltrate in shale rock sample, to state of saturation, Deng 2 hours, until shale samples glue is solid;
To surgical glove should be put in the solid process of loose shale samples glue, skin is protected.
4. the method for making of the shale petrographic thin section according to claim 1-3, it is characterized in that, the method that shale rock sample is cut into slices first is as follows: adopt Buehler low speed precision gas cutting machine, adamas cutting knife thickness is 0.4mm, the section orientation of choose reasonable shale samples, utilize fixture and flange clamping shale samples, to cut into slices alignment of orientation cutting blade, after cutting mill to be cut works well, at the uniform velocity advance with cutting sample to cutting blade direction with holder shale samples is evenly firmly slow, and Ultrasonic Cleaning is carried out to the tangent plane of cut shale samples, cleaning fluid is deionized water,
The liquid coolant of described cutting blade selects deionized water.
5. the method for making of the shale petrographic thin section according to claim 1-4, it is characterized in that, described method for suppersonic cleaning is as follows: the water first loading the 2cm-3cm degree of depth in supersonic wave cleaning machine, then the deionized water that a small beaker loads the 2cm-3cm degree of depth is got, and small beaker is placed in supersonic wave cleaning machine, shale samples to be cleaned is put into beaker and is cleaned about 1 minute by opening power, to wash away landwaste residual in sample.
6. the method for making of the shale petrographic thin section according to claim 1-5, it is characterized in that, polishing of tangent plane and polishing are carried out to the shale samples after section first, method is as follows: first select granularity to be that silit (SiC) powder of 1 μm and deionized water are slightly roughly ground shale samples tangent plane on a glass as silit (SiC) wetting agent, after treating sample corase grind, then granularity is selected to be that fine-grained carbon SiClx (SiC) the burnishing powder foot couple sample of 0.3 μm or 0.5 μm carries out polishing; During operation, utilize wash bottle to spray deionized water to soak burnishing powder, then sample is placed on simple glass plate and polishing is carried out to sample tangent plane, until tangent plane is smooth, without obvious cut, and slightly till reflecting effect; In whole lapping and polishing process, firmly want evenly, must guard against too quickly and destroy shale; After every grinding and polishing program together, all will carry out Ultrasonic Cleaning to sample immediately, take deionized water as cleaning fluid;
Described tangent plane carries out to shale samples polish with polishing process, surgical glove should be worn skin is protected.
7. the method for making of the shale petrographic thin section according to claim 1-6, carry out bonding die to shale samples, method is as follows: to the adhesive surface of microslide with 600
#or 1000
#loose silit (SiC) abrasive powder or sand paper carry out throwing hair, a small amount of " 502 " glue of uniform application is respectively thrown on the one side of hair and shale samples tangent plane in advance at microslide, by bonding for two faces, flicking also gets rid of bubble in glue to ensure good combination between sample and microslide and to indicate sample number into spectrum with diamond pen at the another side of microslide, waits for 12 hours;
The described adhesive surface to microslide will carry out Ultrasonic Cleaning after throwing hair, take deionized water as cleaning fluid;
The gluing process of described bonding die need guarantee that the glue of sample tangent plane and slide surface is smeared evenly, and the glue smeared is too much unsuitable, in right amount, avoid being with bubble in the glue smeared, and choose reasonable gluing area.
8. the method for making of the shale petrographic thin section according to claim 1-7, it is characterized in that, the method of shale samples being carried out to secondary section is as follows: utilize the microslide fixture on Buehler low speed precision gas cutting machine and milscale to carry out secondary section to the shale samples after bonding die, rock sample is cut into the thin slice that thickness is about 0.3mm, and Ultrasonic Cleaning is carried out to the shale thin slice cut, take deionized water as cleaning fluid;
The cutting blade during section of described secondary should thinner than the thickness of blade used of cutting into slices first (can select the thinly-sliced cutter that 0.3mm is thick), and the cutting rotating speed of microtome can not (<500 turns too soon, in order to avoid during secondary section the swing of blade and Oscillation Amplitude excessive, cause shale samples to shake and come unstuck);
To guarantee that microslide is parallel with cutting blade in described secondary slicing processes, avoid cut shale thin slice to occur the phenomenon of became uneven;
In secondary slicing processes, the liquid coolant of cutting blade selects deionized water;
Secondary section after final polishing and polishing is carried out to made shale thin slice, its method with cut into slices first after the same to polishing with polishing program of shale samples tangent plane, do not repeat them here;
Inspection for shale thin slice quality of finish is clean bright and micromechanism is high-visible is as the criterion under single polarizing microscope with thin slice;
Finally polish with polishing after sheet thickness should be less than 0.05mm.
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| CN201510027702.3A CN104568545A (en) | 2015-01-20 | 2015-01-20 | Manufacturing method of shale rock lamina |
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| CN201510027702.3A CN104568545A (en) | 2015-01-20 | 2015-01-20 | Manufacturing method of shale rock lamina |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482990A (en) * | 2015-08-28 | 2017-03-08 | 中国石油化工股份有限公司 | The manufacture method of fluid inclusion thin slice |
| CN106769167A (en) * | 2016-12-09 | 2017-05-31 | 河海大学 | A kind of rock mass sampling method containing weak structural face |
| CN106826405A (en) * | 2016-12-27 | 2017-06-13 | 中国石油天然气股份有限公司 | Rock is ground method |
| CN106925564A (en) * | 2015-12-30 | 2017-07-07 | 核工业北京地质研究院 | A kind of quick unloading piece of petrographic thin section and cleaning method for the micro- thermometric of inclusion enclave |
| CN108414314A (en) * | 2018-03-06 | 2018-08-17 | 国土资源实物地质资料中心 | Unconsolidated core section preparation and preparation method thereof |
| CN109946127A (en) * | 2019-03-04 | 2019-06-28 | 中国科学院南海海洋研究所 | Shale vacuum breaking machine |
| CN110171223A (en) * | 2019-06-24 | 2019-08-27 | 自然资源实物地质资料中心 | Entity slabbed core atlas and preparation method thereof |
| CN110186733A (en) * | 2019-06-24 | 2019-08-30 | 自然资源实物地质资料中心 | Large format slabbed core sample and preparation method thereof |
| CN110596166A (en) * | 2019-09-11 | 2019-12-20 | 西京学院 | Method for identifying type and content of oil-gas reservoir space |
| CN111421397A (en) * | 2020-04-17 | 2020-07-17 | 中国地质科学院矿产资源研究所 | Grinding and polishing clamp for rock sample and rock sample preparation method |
| CN111721594A (en) * | 2019-03-22 | 2020-09-29 | 中国石油化工股份有限公司 | Clamp for cutting micro flaky rock sample and using method thereof |
| CN114088489A (en) * | 2021-11-22 | 2022-02-25 | 西安石油大学 | Geology-used ore piece manufacturing process and device thereof |
| CN114112563A (en) * | 2020-08-26 | 2022-03-01 | 中国石油天然气股份有限公司 | Loose sandy sediment slice and manufacturing method and application thereof |
| CN114264846A (en) * | 2021-12-20 | 2022-04-01 | 中国科学院地质与地球物理研究所 | Preparation method of ion probe sample target at specified position of fine particles |
| CN114428002A (en) * | 2021-09-13 | 2022-05-03 | 中国石油化工股份有限公司 | Method for performing multi-item analysis on rock slice |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482990A (en) * | 2015-08-28 | 2017-03-08 | 中国石油化工股份有限公司 | The manufacture method of fluid inclusion thin slice |
| CN106482990B (en) * | 2015-08-28 | 2020-10-20 | 中国石油化工股份有限公司 | Method for making fluid inclusion sheet |
| CN106925564A (en) * | 2015-12-30 | 2017-07-07 | 核工业北京地质研究院 | A kind of quick unloading piece of petrographic thin section and cleaning method for the micro- thermometric of inclusion enclave |
| CN106769167A (en) * | 2016-12-09 | 2017-05-31 | 河海大学 | A kind of rock mass sampling method containing weak structural face |
| CN106826405A (en) * | 2016-12-27 | 2017-06-13 | 中国石油天然气股份有限公司 | Rock is ground method |
| CN108414314A (en) * | 2018-03-06 | 2018-08-17 | 国土资源实物地质资料中心 | Unconsolidated core section preparation and preparation method thereof |
| CN109946127A (en) * | 2019-03-04 | 2019-06-28 | 中国科学院南海海洋研究所 | Shale vacuum breaking machine |
| CN111721594A (en) * | 2019-03-22 | 2020-09-29 | 中国石油化工股份有限公司 | Clamp for cutting micro flaky rock sample and using method thereof |
| CN110171223A (en) * | 2019-06-24 | 2019-08-27 | 自然资源实物地质资料中心 | Entity slabbed core atlas and preparation method thereof |
| CN110186733A (en) * | 2019-06-24 | 2019-08-30 | 自然资源实物地质资料中心 | Large format slabbed core sample and preparation method thereof |
| CN110596166A (en) * | 2019-09-11 | 2019-12-20 | 西京学院 | Method for identifying type and content of oil-gas reservoir space |
| CN111421397A (en) * | 2020-04-17 | 2020-07-17 | 中国地质科学院矿产资源研究所 | Grinding and polishing clamp for rock sample and rock sample preparation method |
| CN114112563A (en) * | 2020-08-26 | 2022-03-01 | 中国石油天然气股份有限公司 | Loose sandy sediment slice and manufacturing method and application thereof |
| CN114428002A (en) * | 2021-09-13 | 2022-05-03 | 中国石油化工股份有限公司 | Method for performing multi-item analysis on rock slice |
| CN114088489A (en) * | 2021-11-22 | 2022-02-25 | 西安石油大学 | Geology-used ore piece manufacturing process and device thereof |
| CN114264846A (en) * | 2021-12-20 | 2022-04-01 | 中国科学院地质与地球物理研究所 | Preparation method of ion probe sample target at specified position of fine particles |
| CN114264846B (en) * | 2021-12-20 | 2024-03-12 | 中国科学院地质与地球物理研究所 | Preparation method of ionic probe sample target of fine particle designated layer |
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