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Debris rapid casting blank method

A cuttings and rapid technology, applied in the field of identification and sample preparation of cuttings slices, can solve the problems of easy falling off of grinding pieces, long time consumption, complicated operation, etc., and achieve the effect of improving production efficiency, increasing bonding strength and simple operation.

Inactive Publication Date: 2004-11-10
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The "turning method" used in the existing cuttings production requires high-temperature operation with an open flame, which violates the safety rules of the drilling site. Moreover, the operation technology is difficult and difficult for ordinary geologists to master. The operation is complicated, time-consuming, and low in efficiency. Fine-grained rock The bonding strength between chips and cement is insufficient, and it is easy to fall off when grinding, so it is not suitable for field sample preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Put 50-60g of mud cuttings collected from the drilling site into a 200ml beaker, wash them with water for 3 times, and carbon tetrachloride for 2 times, then soak them in 100ml of silane coupling agent (KH560) solution with a concentration of 2%. After modification for 5 minutes, filter and dry for later use. Weigh 5g of the above-mentioned treated sample and pour it into a 10ml small beaker, add 5ml of 196-type general resin, 0.15ml of methyl ethyl ketone peroxide at a concentration of 50%, and 0.15ml of cobalt naphthalate at a concentration of 1%. Vibrate for 2 minutes, remove the beaker, and after standing still for 20 minutes, take out the solidified sample and cut it into slices on-site on the QMP-1 multifunctional cutting and grinding machine (patent number: ZL 00 2 62692.9).

Embodiment 2

[0013] Weigh 8g of the sample washed with water, washed with carbon tetrachloride and modified, pour it into a 20ml container, add 8ml of S629 type transparent resin, 0.20ml of cyclohexanone peroxide at a concentration of 50%, and cyclohexanone peroxide at a concentration of 1%. Cobalt acid 0.20ml, after stirring evenly, vibrate on the shaker for 2 minutes, remove the container, stand still for 20 minutes, take out the solidified sample blank and cut and grind it on site.

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PUM

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Abstract

The invention relates to a method to identifying slices of rock scraps and preparing the slice sample, specially applied to field fast sample fabrication for petroleum well drilling, washing the sample of petroleum drilling rock scraps by water and carbon tetrachloride, then making surface soak-modification processing by silane coupling agent or chrome complex coupling agent, filtering and drying and pouring in a container, adding in adhesive, solidifying agent and accelerant, uniformly blending, shaking on a shaker and then keep static for 20 minutes, and able to make field grinding to make slices at once. It need no open fire, has no pollution, simple and short-cut, heightens slice making efficiency by 4-6 times in comparison with existing slice making methods by examination, suitable for making sample on the spot for petroleum well drilling

Description

Technical field: [0001] The invention relates to a method for sample preparation of thin slices of cuttings, in particular to quick sample preparation on the spot of oil drilling. Background technique: [0002] The identification of lithology at oil exploration geological logging site is traditionally observed with the naked eye or with the help of a magnifying glass. For cuttings with complex composition or structure, it is difficult to identify by traditional methods. It needs to be made into thin slices for lithology identification under a microscope. . Especially in the process of deep exploration, rapid and accurate lithology identification of cuttings at the mud logging site is of great significance for reducing coring, saving drilling time and guiding drilling decisions. [0003] Petroleum Geology Laboratory cuttings slices using the "turning slice method". For example, it is written in "Petroleum Geology Experiment Handbook" (edited by Gao Ruiqi, etc., Heilongjiang...

Claims

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Application Information

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IPC IPC(8): G01N1/04G01N1/28
Inventor 刘万株王璞珺孙少波曲永宝王树学单玄龙程日辉尹振春
Owner JILIN UNIV
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