A Quantitative Calculation Method for Secondary Oversizing of Silicate Based on Cathodoluminescence Technology

Abstract

The embodiment of the present invention discloses a quantitative calculation method for siliceous secondary enlargement based on cathodoluminescence technology, including: S100, using cathode rays to irradiate the target sandstone, to obtain a cathodoluminescence image with cementation characteristics preserved; S200, for The obtained cathodoluminescence image is processed by Matlab, and image binarization is performed under the premise of retaining the pixels and colors of various cements in the cathodoluminescence image to obtain a binary image that can be recognized by Matlab; S300, through being able to The function of identifying the cement area outputs the cement area, and quantitatively calculates the output cement areas. The present invention collects cathodoluminescent images of the target sandstone, outputs and quantitatively calculates the identified cement region after binarization processing, so as to solve the problem of large deviations and huge workload in manual stacking distance measurement.

Description

technical field [0001] The embodiment of the present invention relates to the application field of cathodoluminescence technology in ore detection, and specifically relates to a quantitative calculation method for secondary enlargement of silicon based on cathodoluminescence technology. Background technique [0002] Quartz secondary enlargement is a common authigenic form during diagenesis, and siliceous cements often appear in the form of secondary enlargement or replacement of other minerals, the most common being the secondary enlargement of quartz and feldspar particles, of which , the siliceous cement plays an important role in the pore structure and permeability of the reservoir. [0003] Quantitative analysis methods for cement in the prior art mainly use geochemistry, well logging curves and various counting methods (grid method) as means. However, because the siliceous cement grows completely on the primary quartz grains, the geochemical method or the logging curve...

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Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides a quantitative calculation method for siliceous secondary enlargement based on cathodoluminescence technology, so that the cathodoluminescence image of the target sandstone is collected, and after binarization processing, the identified cementation Output and quantitative calculation of the object area to solve the problem of artificial superposition ranging not only has a large deviation, but also has a huge workload

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