Visualization of pore space in the granitic rocks using X-ray computed tomography

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Visualization of pore space in the granitic rocks using X-ray computed tomography

Popis výsledku v původním jazyce

The porosity of the rocks is one of the most important properties of rocks. This parameter enters into many hydrogeological, geotechnical and also geothermal calculations. The concept of spatial distribution and topography of this phenomenon are usually studied on a number of cuts using a microscope. Build-dimensional image of the pore distribution in the sample is not a trivial matter. The paper deals with the possibilities of using X-ray computed tomography on granite rock samples for analysis of the nature and 3D - distribution of pore space or other inhomogeneities. Common applications of X-ray computed tomography on compact granite rocks can only display major discontinuities and pores of larger volume. In summary, visibility and analysis of a small pore volume and particularly the fracture shapes are problematic. Significant improvement in visibility can be achieved by increasing the optical contrast of the observed structures. This was accomplished by testing the modified rock samples, e.g. after application of mercury porosimetry. Comparison of the results of X-ray computed tomography before and after treatments with increasing contrast of the pore space shows a significant improvement in visibility. This perspective allows to use the results for further research (e.g. for the subsequent creation of meshes based on the real structure of the sample for mathematical modeling of processes envisaged in the rock).

Název v anglickém jazyce

Visualization of pore space in the granitic rocks using X-ray computed tomography

Popis výsledku anglicky

The porosity of the rocks is one of the most important properties of rocks. This parameter enters into many hydrogeological, geotechnical and also geothermal calculations. The concept of spatial distribution and topography of this phenomenon are usually studied on a number of cuts using a microscope. Build-dimensional image of the pore distribution in the sample is not a trivial matter. The paper deals with the possibilities of using X-ray computed tomography on granite rock samples for analysis of the nature and 3D - distribution of pore space or other inhomogeneities. Common applications of X-ray computed tomography on compact granite rocks can only display major discontinuities and pores of larger volume. In summary, visibility and analysis of a small pore volume and particularly the fracture shapes are problematic. Significant improvement in visibility can be achieved by increasing the optical contrast of the observed structures. This was accomplished by testing the modified rock samples, e.g. after application of mercury porosimetry. Comparison of the results of X-ray computed tomography before and after treatments with increasing contrast of the pore space shows a significant improvement in visibility. This perspective allows to use the results for further research (e.g. for the subsequent creation of meshes based on the real structure of the sample for mathematical modeling of processes envisaged in the rock).

Druh

D - Stať ve sborníku

CEP obor

JQ - Strojní zařízení a nástroje

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

16th International Multidisciplinary Scientific Geoconference - SGEM 2016

ISBN

978-619-7105-57-5

ISSN

1314-2704

e-ISSN

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Počet stran výsledku

9

Strana od-do

355-362

Název nakladatele

SGEM

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

30. 6. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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