CN106338424A - Method for analyzing clay mineral in rock sample with high quartz content - Google Patents
Method for analyzing clay mineral in rock sample with high quartz content Download PDFInfo
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- CN106338424A CN106338424A CN201510406055.7A CN201510406055A CN106338424A CN 106338424 A CN106338424 A CN 106338424A CN 201510406055 A CN201510406055 A CN 201510406055A CN 106338424 A CN106338424 A CN 106338424A
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000002734 clay mineral Substances 0.000 title claims abstract description 40
- 239000010453 quartz Substances 0.000 title claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000011435 rock Substances 0.000 title claims abstract description 25
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 82
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000007605 air drying Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000004927 clay Substances 0.000 claims description 23
- 238000004458 analytical method Methods 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 16
- 238000002441 X-ray diffraction Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000012153 distilled water Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 238000010298 pulverizing process Methods 0.000 claims description 8
- 238000001238 wet grinding Methods 0.000 claims description 8
- 229910001919 chlorite Inorganic materials 0.000 claims description 7
- 229910052619 chlorite group Inorganic materials 0.000 claims description 7
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 claims description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 6
- 238000005119 centrifugation Methods 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000010430 carbonatite Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229910052573 porcelain Inorganic materials 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 2
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 9
- 238000011160 research Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001748 carbonate mineral Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention relates to a method for analyzing clay mineral in a rock sample with high quartz content. The method comprises the following steps: 1) crushing a sample; 2) extracting the clay mineral; 3) respectively preparing a natural air drying sheet of the sample, hydrochloric acid sheet, glycol sheet and a heating sheet; and 4) using a X-ray diffractometer for tests. The method is suitable for analyzing the clay mineral in the rock sample with the high quartz content.
Description
Technical field
The present invention relates to a kind of analysis method of a kind of analysis method, more particularly, to geology field.
Background technology
X-ray diffraction analysis is rapid, easy, is suitable for and can obtain relevant clay that is substantial amounts of, being easy to explanation
The means of testing of mineral each side surface information.Main clay mineral race (is often the special of these clay mineral races
Clay pit species), even preservation in complicated mineral intermixture, using x-ray diffraction analysis method
Can easily they be identified out.X-ray diffraction analysis can be used for research intricately interlaminar action,
The special quantitative semi-quantitative analyses that are many types of and carrying out clay mixture of identification.In conjunction with various aid in treatment, conscientiously
The x-ray diffraction collection of illustrative plates of ground research clay sample usually can obtain each main clay being present among sample
The information of the chemical composition aspect of mineral constituent.The achievement in research of clay mineral can be not only used for recovering deposition basin
The geologic climate on ground, paleotemperature, paleosalinity, recourse source area and carry out Stratigraphic Division And Correlation, especially mute stratum
Division and contrast, and can be also used for study sedimentary rock diagenesis history and research petroleum reservoir physical property
Feature.In recent years, clay mineral and oil layer protection have become of petroleum geology and drilling engineering research field
Important topic, and using it as solving anti-cave-in, improve bit speed and quality, formation protection, raising
One of important channel of the problems such as recovery ratio.It can be seen that x-ray diffraction analysis plays master in oil field prospecting research
Act on.
Because in the rock sample of certain areas, quartz content is higher, the spectrogram that have impact on clay mineral reads, thus
The analysis test result of impact clay mineral.Find during sample analysis, due to high quartz content area sample
The feature of product, is problematic in that at aspects such as the extraction of sample, extraction, film-making and test conditions.At present, state
The execution standard of interior x-ray diffraction analysis is to be generally not very high for quartz content in sample and formulates,
And the high quartz specimen for some areas is then inapplicable.With deepening continuously of exploration and development technology, it is related to lead
The continuous expansion in domain, especially the exploitation in the area such as Xinjiang proposes higher wanting to means of testing in recent years
Ask, the clay combining that existing analysis method executes the rock sample that standard is not suitable for high quartz content is surveyed
Fixed, the spectrogram that have impact on clay mineral reads, and needs to be innovated, existing execution standard is carried out supplementing and
Improve.Therefore, this area needs a kind of new clay mineral be applied to the high quartz content rock sample of analysis badly
Analysis method.
Content of the invention
In order to solve above-mentioned problems of the prior art, the invention provides a kind of high quartz content rock-like
The analysis method of the clay mineral in product, it comprises the steps:
1) broken sample: the clay mineral in high quartz content rock sample is crushed to particle diameter and is less than 10mm, obtain
Cosmid after pulverizing；
2) extract clay mineral:
2-1) in pulverized sample, add 4-10n hcl hydrochloric acid solution, preferred 6n hcl hydrochloric acid solution,
To remove carbonate therein,
2-2) outwell the liquid clarified above, add 4-10n hcl hydrochloric acid solution, preferred 6n hcl hydrochloric acid
Solution carries out the second secondary response, so that chlorite in sample is completely dissolved, and with distilled water wash 1-10 time, preferably
3-5 time, cosmid is made to suspend；
Method 2-3) adopting wet grinding processes clay sample；
2-4) prepare suspension: the cosmid after pulverizing is put in container, plus distilled water immersion, promoted with ultrasound wave
Enter dispersion, more than 5 hours of time of extraction sample, more than preferably 6 hours, with container, preferred beaker
Accept sample, obtain slurry,
Then suspension is centrifuged, so that cosmid is settled, then the sample after centrifugation is dried, and grind, numbering；
3) natural wind dry tablet, hydrochloric acid piece, ethylene glycol piece and the heating plate of sample are prepared respectively；
4) tested with x-ray diffraction instrument, wherein scanning angle c/s mixes layer for 2.5 ° -30 °, x-ray
Power is 39-42kw, preferred 40kw, respectively with natural wind dry tablet, hydrochloric acid piece, ethylene glycol piece and heating plate
Carry out x-ray diffraction analysis as clay orienting piece.
In step 1) in, during broken sample, keep rock sample to have certain particle diameter, this avoid quartz excessively broken
Together propose with clay mineral.
One of the present invention preferred embodiment in, described cosmid is whole sample particle through pulverizing.
One of the present invention preferred embodiment in, step 1) in by high quartz content rock sample
Clay mineral is crushed to particle diameter and is less than 9mm, is preferably crushed to the clay mineral in high quartz content rock sample
Particle diameter is less than 8mm, more preferably the clay mineral in high quartz content rock sample is crushed to particle diameter and is less than
7mm.
One of the present invention preferred embodiment in, in step 2-1) in, dolomite class mineral are being less than
Under conditions of 60 DEG C, preferably heat treated carried out on the water-bath less than 60 DEG C.
In an embodiment of the invention, in step 2-1) and/or step 2-2) in, in analysis process,
Go up machine analysis total rock tabletting first, judge content and the species of silicate, different according to species, component, add
The hydrochloric acid of variable concentrations, takes different methods to remove carbonate.
One of the present invention preferred embodiment in, step 2-3) described in employing wet grinding method process viscous
Earth sample is addition water in mortar, preferred porcelain mortar, uses rubber hammer ground sample, will be attached to carbonatite table
The clay mineral in face grinds.Use rubber hammer ground sample, the clay mineral that will be attached to carbonatite surface grinds
While mill, rubber hammer does not damage it is ensured that in sample extraction to carbonate mineral, not with clay
Mineral are carried over together.One of the present invention preferred embodiment in, in step 2-3) described in plus
Enter water and refer to add water and sample is drenched.
One of the present invention preferred embodiment in, in step 1) after, step 2) before also include
Step except Organic substance:
Remove Organic substance with hydrogen peroxide.
This step is to implement under conditions of sample contains organic matter.Without organic matter, can not implement
This step.
One of the present invention preferred embodiment in, in step 1) before also comprise the following steps:
Oil samples chloroform will be contained extract to 4 grades of fluorescence.
This step is to contain enforcement under conditions of oil in the sample.First by sample washing oil, then carry out step 1) with
And each following steps flow chart.
In step 2-4) in, in the range of standard allows, lengthen the time extracting sample, by common 2.5
Individual hour extends to more than 6 hours, so ensures that quartz particles are fully deposited in the bottom of beaker.
One of the present invention preferred embodiment in, step 2-4) described in beaker be 1000ml beaker.
The beaker accepting sample is changed to 1000ml by common 400ml, so avoids to extract clay with siphon
When, by the sample debris extraction of bottom out.
One of the present invention preferred embodiment in, step 2-4) described in dry be less than 60 DEG C of electricity
Dry in heated drying case.
One of the present invention preferred embodiment in, step 2-4) in obtain slurry before also include
Wet grinding or with distilled water wash 1-10 time, preferred 3-5 time or plus 1-10 drips, preferred 3-5 drips ammonia or concentration is
The sodium hexametaphosphate solution stirring of 5wt%, the step suspending until clay.Preferably implement for one in the present invention
In mode, described ammonia is ammonia stock solution.
Being preferably carried out in mode in the present invention, step 3) described in sample be through step 2) suspended centrifugal
The sample of gained after (preferably also through drying and grinding).
One of the present invention preferred embodiment in, step 3) in,
Natural wind dry tablet adopts following method i) and method ii) at least one preparation:
Dry sample is added water by method i), stirs evenly, and makes cosmid fully dispersed, suspension natural air drying on microscope slide,
Make natural wind dry tablet；
Method ii) clay of centrifugation is stirred evenly, drip on microscope slide with suction pipe, natural air drying, make certainly
So air dried sheet；
And/or
Ethylene glycol piece is adopted and is prepared with the following method:
Spent glycol steam constant temperature 1-24h, preferred 5-10h, more preferably 7h under the conditions of 40-50 DEG C process nature
Air dried sheet, is cooled to room temperature, makes ethylene glycol piece；
And/or
Heating plate is adopted and is prepared with the following method:
By ethylene glycol piece constant temperature 2h at 550 DEG C, naturally cool to room temperature；
And/or
Hydrochloric acid piece is adopted and is prepared with the following method:
Plus the hydrochloric acid of the hydrochloric acid of 4-8mol/l, preferred 6mol/l is in sample, 80-100 DEG C of water-bath is processed
10-20min, preferred 15min, after cooling centrifuge washing to no chloride ion,
Then add water, stir evenly, make cosmid fully dispersed, suspension natural air drying on microscope slide, make salt
Sour piece, or drip on microscope slide with suction pipe, natural air drying, make hydrochloric acid piece.
One of the present invention preferred embodiment in, plus the hydrochloric acid of a 4-8mol/l, preferred 6mol/l
Hydrochloric acid can not be completely dissolved carbonate in sample, then again plus a hydrochloric acid；If adding a hydrochloric acid with regard to energy
Dissolving, then be not added with second.
In high quartz content rock sample, the comparision contents of chlorite and green/deceive people layer are high.Kaolinite and chlorite
The diffraction maximum of both mineral is superimposed and is difficult to differentiate.Hydrochloric acid piece preparation is carried out using said method, at place
On the sample collection of illustrative plates of reason, some chlorite reflections all do not have, and are fully achieved Expected Results.Measurement result is preferable.
The beneficial effects of the present invention is: by the invention of this technology, establish in high quartz content rock sample
Clay combining method, the foundation of the method flow process ensure that sample analysis test result quality it is adaptable to
Be applied to the analysis of the clay mineral analyzed high quartz content rock sample, improve work efficiency, simultaneously right
It is perfect that existing clay analysis method execution standard has carried out supplement.
Brief description
The diffraction maximum that Fig. 1 is quartzy on the diffracting spectrum of the present invention exceeds the diffraction maximum of clay mineral.
The diffraction maximum that Fig. 2 is quartzy on the diffracting spectrum of comparative example exceeds the diffraction maximum of clay mineral.
Specific embodiment
Below by embodiment and combine accompanying drawing the present invention is described in further detail.
Embodiment 1
1) broken sample: the clay mineral in high quartz content rock sample is crushed to particle diameter and is less than 10mm, obtain
Cosmid after pulverizing；
2) extract clay mineral:
2-1) in pulverized sample, add 6n hcl hydrochloric acid solution, to remove carbonate therein,
2-2) outwell the liquid clarified above, add 6n hcl hydrochloric acid solution and carry out the second secondary response, make sample
In product, chlorite is completely dissolved, and with distilled water wash 5 times, so that cosmid is suspended；
Method 2-3) adopting wet grinding processes clay sample: adds water in porcelain mortar, uses rubber hammer ground sample,
The clay mineral that will be attached to carbonatite surface grinds；
2-4) prepare suspension: the cosmid after pulverizing is put in container, plus distilled water immersion, promoted with ultrasound wave
Enter dispersion, extract 6 hours of time of sample, accept sample with 1000ml beaker, obtain slurry,
Then suspension is centrifuged, so that cosmid is settled, then the sample after centrifugation is dried, and grind, numbering；
3) natural wind dry tablet, hydrochloric acid piece, ethylene glycol piece and the heating plate of sample are prepared respectively:
The preparation of natural wind dry tablet: dry sample is added water, stirs evenly, make cosmid fully dispersed, suspension is fallen in load glass
Natural air drying on piece, makes natural wind dry tablet；
The preparation of ethylene glycol piece: spent glycol steam under the conditions of 40-50 DEG C constant temperature 1-24h, preferred 5-10h,
More preferably 7h processes natural wind dry tablet, is cooled to room temperature, makes ethylene glycol piece；
The preparation of heating plate:
By ethylene glycol piece constant temperature 2h at 550 DEG C, naturally cool to room temperature；
The preparation of hydrochloric acid piece:
Plus the hydrochloric acid of the hydrochloric acid of 4-8mol/l, preferred 6mol/l is in sample, 80-100 DEG C of water-bath is processed
10-20min, preferred 15min, after cooling centrifuge washing to no chloride ion,
Then add water, stir evenly, make cosmid fully dispersed, suspension natural air drying on microscope slide, make salt
Sour piece；
4) tested with d8x x ray diffractometer x, wherein scanning angle c/s mixes layer for 2.5 ° -30 °, x-ray
Power be 40kw, respectively using natural wind dry tablet, hydrochloric acid piece, ethylene glycol piece and heating plate as clay orient
Piece carries out x-ray diffraction analysis.
On diffracting spectrum, the diffraction maximum of quartz exceeds the diffraction maximum of clay mineral and sees Fig. 1.
Comparative example 1
1) broken sample: the clay mineral in high quartz content rock sample is pulverized it is not required that being crushed to specific grain
Footpath, the cosmid after being pulverized；
2) extract clay mineral:
2-1) in pulverized sample, add 6n hcl hydrochloric acid solution, to remove carbonate therein,
2-2) outwell the liquid clarified above, add 6n hcl hydrochloric acid solution and carry out the second secondary response, make sample
In product, chlorite is completely dissolved, and with distilled water wash 5 times, so that cosmid is suspended；
Method 2-3) adopting wet grinding processes clay sample: adds water in porcelain mortar, uses rubber hammer ground sample,
The clay mineral that will be attached to carbonatite surface grinds；
2-4) prepare suspension: the cosmid after pulverizing is put in container, plus distilled water immersion, promoted with ultrasound wave
Enter dispersion, extract 2.5 hours of time of sample, accept sample with 400ml beaker, obtain slurry,
Then suspension is centrifuged, so that cosmid is settled, then the sample after centrifugation is dried, and grind, numbering；
3) natural wind dry tablet, hydrochloric acid piece, ethylene glycol piece and heating plate are prepared respectively:
The preparation of natural wind dry tablet: dry sample is added water, stirs evenly, make cosmid fully dispersed, suspension is fallen in load glass
Natural air drying on piece, makes natural wind dry tablet；
The preparation of ethylene glycol piece: spent glycol steam under the conditions of 40-50 DEG C constant temperature 1-24h, preferred 5-10h,
More preferably 7h, is cooled to room temperature, makes ethylene glycol piece；
The preparation of heating plate:
By ethylene glycol piece constant temperature 2h at 550 DEG C, naturally cool to room temperature；
The preparation of hydrochloric acid piece:
Plus the hydrochloric acid of the hydrochloric acid of 4-8mol/l, preferred 6mol/l is in sample, 80-100 DEG C of water-bath is processed
10-20min, preferred 15min, after cooling centrifuge washing to no chloride ion,
Then add water, stir evenly, make cosmid fully dispersed, suspension natural air drying on microscope slide, make salt
Sour piece；
4) d8 is tested with x-ray diffraction instrument, and wherein scanning angle c/s mixes layer for 2.5 ° -30 °, and x penetrates
The power of line is 40kw, fixed as clay using natural wind dry tablet, hydrochloric acid piece, ethylene glycol piece and heating plate respectively
Carry out x-ray diffraction analysis to piece.
On diffracting spectrum, the diffraction maximum of quartz exceeds the diffraction maximum of clay mineral and sees Fig. 2.
It should be noted that embodiments discussed below is only used for explaining the present invention, do not constitute to the present invention's
Any restriction.By referring to embodiment, invention has been described, it should be appreciated that word wherein used,
Equation or formula are descriptive and explanatory vocabulary, equation or formula, rather than limited vocabulary, equation or public affairs
Formula.Within the scope of the claims the present invention can be modified by regulation, and without departing substantially from this
In the scope and spirit of invention, the present invention is revised.Although the present invention described in it is related to specific method
And application, it is not intended that the present invention is limited to wherein disclosed particular case, on the contrary, the present invention can be extended to
Other all methods and applications with identical function.
Claims (9)
1. the analysis method of the clay mineral in a kind of high quartz content rock sample, it comprises the steps:
1) broken sample: the clay mineral in high quartz content rock sample is crushed to particle diameter and is less than 10mm, obtain
Cosmid after pulverizing；
2) extract clay mineral:
2-1) in pulverized sample, add 4-10n hcl hydrochloric acid solution, preferred 6n hcl hydrochloric acid solution,
To remove carbonate therein,
2-2) outwell the liquid clarified above, add 4-10n hcl hydrochloric acid solution, preferred 6n hcl hydrochloric acid
Solution carries out the second secondary response, so that chlorite in sample is completely dissolved, and with distilled water wash 1-10 time, preferably
3-5 time, cosmid is made to suspend；
Method 2-3) adopting wet grinding processes clay sample；
2-4) prepare suspension: the cosmid after pulverizing is put in container, plus distilled water immersion, promoted with ultrasound wave
Enter dispersion, more than 5 hours of time of extraction sample, more than preferably 6 hours, with container, preferred beaker
Accept sample, obtain slurry,
Then suspension is centrifuged, so that cosmid is settled, then the sample after centrifugation is dried, and grind, numbering；
3) natural wind dry tablet, hydrochloric acid piece, ethylene glycol piece and the heating plate of sample are prepared respectively；
4) tested with x-ray diffraction instrument, wherein scanning angle c/s mixes layer for 2.5 ° -30 °, x-ray
Power is 39-42kw, preferred 40kw, respectively with natural wind dry tablet, hydrochloric acid piece, ethylene glycol piece and heating plate
Carry out x-ray diffraction analysis as clay orienting piece.
2. method according to claim 1 is it is characterised in that step 1) in by high quartz content rock
Clay mineral in sample is crushed to particle diameter and is less than 9mm, preferably by the clay pit in high quartz content rock sample
Thing is crushed to particle diameter and is less than 8mm, more preferably the clay mineral in high quartz content rock sample is crushed to particle diameter
Less than 7mm.
3. method according to claim 1 and 2 is it is characterised in that in step 2-1) in, by white clouds
Rock class mineral are under conditions of less than 60 DEG C, preferably carry out heat treated in the water-bath less than 60 DEG C.
4. the method according to any one in claim 1-3 is it is characterised in that step 2-3) described
Method using wet grinding to process clay sample be addition water in mortar, preferred porcelain mortar, ground with rubber hammer
Sample, the clay mineral that will be attached to carbonatite surface grinds.
5. the method according to any one in claim 1-4 is it is characterised in that in step 1) after,
Step 2) before also include organics removal step:
Remove Organic substance with hydrogen peroxide.
6. the method according to any one in claim 1-5 is it is characterised in that in step 1) before
Also comprise the following steps:
Oil samples chloroform will be contained extract to 4 grades of fluorescence.
7. the method according to any one in claim 1-6 is it is characterised in that step 2-4) in institute
The beaker stated is 1000ml beaker.
8. the method according to any one in claim 1-7 is it is characterised in that step 2-4) in
Also include to before slurry wet grinding or with distilled water wash 1-10 time, preferred 3-5 time or plus 1-10 drip,
The sodium hexametaphosphate solution stirring that preferably 3-5 drips ammonia or concentration is 5wt%, the step suspending until clay.
9. the method according to any one in claim 1-8 is it is characterised in that step 3) in,
Natural wind dry tablet adopts following method i) and method ii) at least one preparation:
Dry sample is added water by method i), stirs evenly, and makes cosmid fully dispersed, suspension natural air drying on microscope slide,
Make natural wind dry tablet；
Method ii) clay of centrifugation is stirred evenly, drip on microscope slide with suction pipe, natural air drying, make certainly
So air dried sheet；
And/or
Ethylene glycol piece is adopted and is prepared with the following method:
Spent glycol steam constant temperature 1-24h, preferred 5-10h, more preferably 7h under the conditions of 40-50 DEG C process nature
Air dried sheet, is cooled to room temperature, makes ethylene glycol piece；
And/or
Heating plate is adopted and is prepared with the following method:
By ethylene glycol piece constant temperature 2h at 550 DEG C, naturally cool to room temperature；
And/or
Hydrochloric acid piece is adopted and is prepared with the following method:
Plus the hydrochloric acid of the hydrochloric acid of 4-8mol/l, preferred 6mol/l is in sample, 80-100 DEG C of water-bath is processed
10-20min, preferred 15min, after cooling centrifuge washing to no chloride ion,
Then add water, stir evenly, make cosmid fully dispersed, suspension natural air drying on microscope slide, make salt
Sour piece, or drip on microscope slide with suction pipe, natural air drying, make hydrochloric acid piece.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108152308A (en) * | 2017-11-29 | 2018-06-12 | 中国电力科学研究院有限公司 | The detection method of chemical bond power between a kind of soil body particle |
| CN109946134A (en) * | 2019-03-22 | 2019-06-28 | 贵州大学 | A kind of separation and extraction method of organoclay complex in black shale |
| CN112133374A (en) * | 2020-09-21 | 2020-12-25 | 成都理工大学 | A method for source rock prediction by restoring paleoenvironment |
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