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|1. (WO2018084506) METHOD FOR MEASURING POROSITY UTILIZING ELECTRON MICROSCOPE IMAGES OF ROCK SAMPLES REACTED WITH GADOLINIUM COMPOUND|
|Applicants:||KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
|Title:||METHOD FOR MEASURING POROSITY UTILIZING ELECTRON MICROSCOPE IMAGES OF ROCK SAMPLES REACTED WITH GADOLINIUM COMPOUND|
The present invention relates to a method for measuring porosity utilizing electron microscopic images of rock samples reacted with a gadolinium compound. The method for measuring porosity according to the present invention comprises the steps of: (a) capturing a first image by performing electron microscopic imaging on a rock sample to be measured for porosity; (b) determining, from the first image, a first area of a part to be understood as heavy minerals; (c) immersing the rock sample in an aqueous solution, in which a gadolinium compound is dissolved, so that the aqueous solution flows into pores inside the rock sample to precipitate in the pores; (d) capturing a second image by performing electron microscopic imaging on the rock sample after the precipitation of the gadolinium compound; and (e) determining, from the second image, a second area of a part to be understood as heavy materials and pores, and then subtracting the first area from the second area to determine a pore area of the rock sample.