Porosity of source rocks eligible for interaction with gases and liquids

0576695 - ÚSMH 2024 RIV AT eng C - Konferenční příspěvek (zahraniční konf.)
Řimnáčová, Daniela - Vöröš, Dominik - Natherová, Vendula - Přikryl, R. - Lokajíček, Tomáš
Porosity of source rocks eligible for interaction with gases and liquids.
Proceedings of the ISRM 15th International Congress on Rock Mechanics and Rock Engineering & 72nd Geomechanics Colloquium – Challenges in Rock Mechanics and Rock Engineering. Salzburg: Austrian Society for Geomechanics, 2023 - (Schubert, W.; Kluckner, A.), s. 2613-2618. ISBN 978-3-9503898-3-8.
[International ISRM Congress 2023 /15./. Salzburg (AT), 09.10.2023-14.10.2023]
Grant CEP: GA ČR(CZ) GA21-26542S; GA ČR(CZ) GA22-00580S
Institucionální podpora: RVO:67985891 ; RVO:67985831
Klíčová slova: gas adsorption * porosity * rocks * motion of molecules
Obor OECD: Environmental and geological engineering, geotechnics; Environmental and geological engineering, geotechnics (GLU-S)
https://eposter.at/ISRM2023/data/PDF/1732.pdf

The extent of the porosity of different source rocks may vary with their composition, weathering of the bedrock etc. To determine the further use of source rocks, it is necessary to understand and describe their physicochemical properties. Complex textural analyses of source rocks with variable amounts of organic matter were carried out using N2 and CO2 sorption, scanning electron microscopy and mercury intrusion porosimetry. The total adsorption of CO2 ranged from 0.03 to 1.5 mmol/g. The porosity and the pore size distribution varied according to the origin of the studied samples. The porosity ranged from 0.2% to 21%. Lower porosity values indicated a connection with gas capturing. Higher porosity values can be explained by the presence of macropores and larger pores, serving mainly for the migration of gases and liquids. Monitoring of sorption properties can provide a scientific basis for the safe utilization of reservoirs and rock layers.


Trvalý link: https://hdl.handle.net/11104/0346164