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1. (WO2018084506) METHOD FOR MEASURING POROSITY UTILIZING ELECTRON MICROSCOPE IMAGES OF ROCK SAMPLES REACTED WITH GADOLINIUM COMPOUND

Pub. No.:    WO/2018/084506    International Application No.:    PCT/KR2017/012035
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Tue Oct 31 00:59:59 CET 2017
IPC: G01N 15/02
G01N 15/08
G02B 21/36
Applicants: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
한국지질자원연구원
Inventors: JIN, Jaehwa
진재화
OH, Youngmin
오영민
KIM, Junho
김준호
LEE, Jeongyil
이정일
Title: METHOD FOR MEASURING POROSITY UTILIZING ELECTRON MICROSCOPE IMAGES OF ROCK SAMPLES REACTED WITH GADOLINIUM COMPOUND
Abstract:
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.