Manufacturing method of shale rock lamina

A production method and shale technology, which is applied in the field of shale rock identification thin section, can solve the problems of interfering shale microfluorescence observation, laminar structure and combination damage, easy to damage the original structure of shale, etc., and achieve the protection of samples Effect of raw information, small sample size required, and low notch loss rate

Inactive Publication Date: 2015-04-29
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

The rapid gel boiling method needs to heat and dry the shale samples, which will easily lead to the destruction of the organic components in the shale, and the addition of some glues will also easily lead to the destruction of the original shale laminar structure and combination, and some organic glues (such as fir Glue) will interfere with the microfluorescence observation of shale
In additi

Method used

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  • Manufacturing method of shale rock lamina

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Embodiment Construction

[0011] Such as figure 1 As shown, the method for making thin slices of shale rocks includes the following steps in turn: cementing loose shale rock samples; first slicing; first grinding and polishing; sticking shale samples; second slicing and second grinding Flat and polished.

[0012] For well-consolidated shale samples, the step of "cementing loose shale samples" can be omitted.

[0013] Glue the loose shale sample, the specific method is as follows: put the loose shale sample on a glass plate, drop a few drops of "502" glue on the surface of the shale sample, and let the "502" glue penetrate into the shale rock sample Medium, to saturation, wait for about 2 hours until the shale sample is cemented.

[0014] During the cementation of loose shale samples, surgical gloves should be worn to protect the skin.

[0015] The method of slicing the shale rock sample for the first time is as follows: use a Buehler low-speed precision cutting machine with a diamond cutter thicknes...

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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 [0001] The invention belongs to the field of petroleum geology, and in particular relates to a method for making a shale rock identification slice. Background technique [0002] Before conducting detailed microscopic petrographic and microscopic fluorescence observation studies on shale with a polarizing microscope, it is first necessary to make thin sections of shale samples. Due to the well-developed phyllophysis and loose structure of shale, shale, a relatively loose rock sample, is easily damaged by slicing and grinding in the current conventional rock thin section production process, especially its lamina structure. As a result of the loss of geological information, the rock samples must be cemented before making thin sections. Commonly used loose rock cementation methods mainly include rapid boiling glue method and liquid glue cementation method. The rapid gel boiling method needs to heat and dry the shale samples, which may easily lead to the destruct...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N1/06
Inventor 陈勇王淼王鑫涛韩云曹梦春
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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