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Method for analyzing clay mineral in rock sample with high quartz content

A technology of quartz content and clay minerals, applied in the field of analysis, can solve problems affecting the reading of clay mineral spectra, and achieve the effect of improving work efficiency

Inactive Publication Date: 2017-01-18
CHINA PETROLEUM & CHEM CORP +1
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  • Description
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Problems solved by technology

With the continuous deepening of exploration and development technology and the continuous expansion of the involved fields, especially in recent years, the development of Xinjiang and other regions has put forward higher requirements for testing methods. The current analysis method implementation standards are not suitable for rock samples with high quartz content. The analysis and determination of clay minerals affect the spectrum reading of clay minerals, and innovation is needed to supplement and improve the current implementation standards

Method used

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  • Method for analyzing clay mineral in rock sample with high quartz content
  • Method for analyzing clay mineral in rock sample with high quartz content

Examples

Experimental program
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Embodiment 1

[0052] 1) crushing: crushing the clay minerals in the rock sample with high quartz content to a particle size of less than 10 mm to obtain crushed clay particles;

[0053] 2) Extraction of clay minerals:

[0054] 2-1) Add 6N HCl hydrochloric acid solution to the pulverized sample to remove carbonate therein,

[0055] 2-2) Pour off the clear liquid above, and then add 6N HCl hydrochloric acid solution for the second reaction to completely dissolve the chlorite in the sample, and wash it with distilled water for 5 times to suspend the clay particles;

[0056] 2-3) The clay sample is processed by wet grinding: water is added to a porcelain mortar, and the sample is ground with a rubber hammer to grind down the clay minerals attached to the carbonatite surface;

[0057] 2-4) Suspension preparation: Put the pulverized clay particles in a container, soak them in distilled water, use ultrasonic waves to promote dispersion, take the samples for 6 hours, and use a 1000ml beaker to acc...

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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 [0001] The invention relates to an analysis method, in particular to an analysis method in the geological field. Background technique [0002] X-ray diffraction analysis is a rapid, simple, applicable test method that can obtain a large amount of information about all aspects of clay minerals that is easy to interpret. The main clay mineral groups (often special clay mineral species of these clay mineral groups), even if they exist in complex mineral mixtures, can be easily identified by X-ray diffraction analysis. X-ray diffraction analysis can be used to study the interaction between complex formations, identify special polytypes and perform quantitative and semi-quantitative analysis of clay mixtures. Combined with various auxiliary treatments, carefully studying the X-ray diffraction patterns of clay samples can often obtain information on the chemical composition of the main clay mineral components present in the sample. The research results of clay mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/34G01N23/00
Inventor 樊德华邱登峰王励周雁张军涛李天义孙冬胜沃玉进
Owner CHINA PETROLEUM & CHEM CORP
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