Novel geological magnifier

Abstract

A novel geological magnifier mainly solves the problem that the existing amplifier has a large error in observing a rock particle structure. The novel geological magnifier is characterized in that a parallel light source for vertical irradiation downwards is fixed at the center of a large arc end of the top cover of a protection case; a rotary blind hole is formed on the small arc end of the top cover of the protection case and is used for allowing the upper end of a rotary shaft to be inserted therein; the base of the protection case has an annular large arc end; a transparent hard film is fixed at the center of the annular base of the protection case; a coordinate scale system with fine coordinates is plotted on the transparent hard film; the coordinate scale system is a right-angle coordinate system with the minimum scale range of 0.01 mm to 0.05 mm; the Y axis of the coordinate scale system is the measurement standard coordinate axis, and the X axis is the measurement reference coordinate axis; and the protection case is connected with the magnifier main body through the rotary shaft. The magnifier can quantitatively observe the rock particle structure, and has the characteristics of compact structure, good portability, high convenience in replacing the magnification lens and the like.

Description

technical field [0001] The invention relates to a novel magnifying glass specially used for quantitatively characterizing rock structure features in the geological field. Background technique [0002] In the process of field geological work, the description of rock composition and grain size is an essential basic work. Especially in the evaluation of rock oil and gas storage performance, the structural characteristics of rock particles, such as particle size, sphericity, roundness, etc., will directly affect its oil and gas storage performance. At present, the description of the grain structure of clastic rocks or carbonate rocks is mainly observed with the naked eye or with the help of ordinary geological magnifying glasses, but after a long period of application, it is found that the existing magnifying glasses cannot meet the needs of actual observation , the reason is that even with the aid of a magnifying glass, it is difficult for human eyes to identify the differenc...

AI Technical Summary

Problems solved by technology

At present, the description of the grain structure of clastic rocks or carbonate rocks is mainly observed with the naked eye or with the help of ordinary geological magnifying glasses, but after a long period of application, it is found that the existing magnifying glasses cannot meet the needs of actual observation , the reason is that even with the aid of a magnifying glass, it is difficult for human eyes to identify the differences in the sandstone particles whose particle size is sub-millimeter in the main storage space of oil and gas. influenced by subjective factors

Even in some cases, it is possible to use a scale combined with a magnifying glass for observation, but since the minimum scale of an ordinary scale is only 1mm, it is impossible to accurately identify fine sand (0.1-0.25mm), medium sand (0.25-0.5 mm) and coarse sand (0.5 ~ 1mm) rock types, therefore, the existing magnifying glass is difficult to meet the needs of geological field work

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