Digital rock physics and laboratory considerations on a high-porosity volcanic rock: micro-XRCT data sets

DOI

Reticulite (high-porosity volcanic rock) is a pyroclastic rock formed during intense Hawaiian fountaining events. The honeycombed network of bubbles is supported by glassy threads and forms a structure with a porosity of more than 80 %. It is an end-member for high-porosity materials with a high stiffness and brittleness. For this specific material, hydro-mechanical experiments are very difficult to perform. Therefore, digital rock physics plays an important role. Digital rock physics combines microtomographic imaging with advanced numerical simulations of effective material properties. It is used to complement laboratory investigations with the aim to gain a deeper understanding of relevant physical processes related to transport and effective mechanical properties.

Two micro-XRCT data sets of two dry cubic reticulite samples under ambient conditions scanned at two different resolutions are provided ("Reticulite-01_AxMF01.rar" and "Reticulite_03_AxMF01.rar"). Further, for each of this data sets a subvolume with 400 x 400 x 400 voxels was extracted and segmented (binarized) into skeleton and pore space which are also provided ("Segmented_subsamples.rar") and can directly be used for digital rock physics. A third cubic reticulite sample was saturated with distilled water in three steps (500 microliters, 250 microliters and 250 microliters) with help of a pipette which was not removed during the CT scans. After each injection a scan was performed. The data sets are named according to the complete injected fluid volumes (“Reticulite-AxHP_wet_500ul.rar”, “Reticulite-AxHP_wet_750ul.rar” and “Reticulite-AxHP_wet_1ml.rar”).

Identifier
DOI https://doi.org/10.18419/darus-680
Related Identifier IsCitedBy https://doi.org/10.1038/s41598-020-62741-1
Metadata Access https://darus.uni-stuttgart.de/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=doi:10.18419/darus-680
Provenance
Creator Schepp, Laura L. ORCID logo; Ahrens, Benedikt ORCID logo; Balcewicz, Martin ORCID logo; Duda, Mandy ORCID logo; Nehler, Mathias ORCID logo; Osorno, Maria ORCID logo; Uribe, David ORCID logo; Steeb, Holger ORCID logo; Nigon, Benoit ORCID logo; Stöckhert, Ferdinand ORCID logo; Swanson, Donald A. ORCID logo; Siegert, Mirko ORCID logo; Gurris, Marcel ORCID logo; Saenger, Erik H. ORCID logo; Ruf, Matthias ORCID logo
Publisher DaRUS
Contributor Steeb, Holger; International Geothermal Centre
Publication Year 2020
Funding Reference Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy EXC 2075 - 390740016
Rights CC BY 4.0; info:eu-repo/semantics/openAccess; http://creativecommons.org/licenses/by/4.0
OpenAccess true
Contact Steeb, Holger (University of Stuttgart, Institute of Applied Mechanics (CE) & SimTech)
Representation
Resource Type Image data; Dataset
Format application/x-rar-compressed
Size 6879527914; 7167491441; 7645530441; 7582900015; 7556696308; 2578420
Version 1.0
Discipline Construction Engineering and Architecture; Earth and Environmental Science; Engineering; Engineering Sciences; Environmental Research; Geosciences; Natural Sciences