Digital rock physics and laboratory considerations on a high-porosity volcanic rock: micro-XRCT data sets (doi:10.18419/darus-680)

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

doi:10.18419/darus-680

DaRUS

2020-03-05

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Schepp, Laura L.; Ahrens, Benedikt; Balcewicz, Martin; Duda, Mandy; Nehler, Mathias; Osorno, Maria; Uribe, David; Steeb, Holger; Nigon, Benoit; Stöckhert, Ferdinand; Swanson, Donald A.; Siegert, Mirko; Gurris, Marcel; Saenger, Erik H.; Ruf, Matthias, 2020, "Digital rock physics and laboratory considerations on a high-porosity volcanic rock: micro-XRCT data sets", https://doi.org/10.18419/darus-680, DaRUS, V1

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

doi:10.18419/darus-680

Schepp, Laura L. (Fraunhofer IEG, Institution for Energy Infrastructures and Geothermal Systems)

Ahrens, Benedikt (Fraunhofer IEG, Institution for Energy Infrastructures and Geothermal Systems)

Balcewicz, Martin (Bochum University of Applied Sciences, Bau- und Umweltingenieurwesen)

Duda, Mandy (Ruhr-University Bochum, Instistute of Geology, Mineralogy and Geophysics)

Nehler, Mathias (Fraunhofer IEG, Institution for Energy Infrastructures and Geothermal Systems)

Osorno, Maria (University of Stuttgart, Institute of Applied Mechanics (CE))

Uribe, David (University of Stuttgart, Institute of Applied Mechanics (CE))

Steeb, Holger (University of Stuttgart, Institute of Applied Mechanics (CE) & SimTech)

Nigon, Benoit (Bochum University of Applied Sciences, Bau- und Umweltingenieurwesen)

Stöckhert, Ferdinand (Ruhr-University Bochum, Instistute of Geology, Mineralogy and Geophysics)

Swanson, Donald A. (U.S. Geological Survey, Hawaiian Volcano Observatory)

Siegert, Mirko (Bochum University of Applied Sciences, Institute of Mathematics and Informatics)

Gurris, Marcel (Bochum University of Applied Sciences, Institute of Mathematics and Informatics)

Saenger, Erik H. (Bochum University of Applied Sciences, Bau- und Umweltingenieurwesen; Fraunhofer IEG, Institution for Energy Infrastructures and Geothermal Systems; Ruhr-University Bochum, Institute of Geology, Mineralogy and Geophysics)

Ruf, Matthias (University of Stuttgart, Institute of Applied Mechanics (CE))

International Geothermal Centre

EXC 2075 - 390740016

DaRUS

Steeb, Holger

https://doi.org/10.18419/darus-680

Computer and Information Science, Earth and Environmental Sciences, Engineering, reticulite, high porous rock, cellular material

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. <br> 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”).

Image data

Schepp, L.L., Ahrens, B., Balcewicz, M., Duda, M., Nehler, M., Osorno, M., Uribe, D., Steeb, S., Nigon, B., Stöckhert, F., Swanson, D.A., Siegert, M., Gurris, M. & Saenger, E.H. (2020). Digital rock physics and laboratory considerations on a high-porosity volcanic rock. <em>Scientific Reports</em>, 10, 5840.

10.1038/s41598-020-62741-1

Schepp, L.L., Ahrens, B., Balcewicz, M., Duda, M., Nehler, M., Osorno, M., Uribe, D., Steeb, S., Nigon, B., Stöckhert, F., Swanson, D.A., Siegert, M., Gurris, M. & Saenger, E.H. (2020). Digital rock physics and laboratory considerations on a high-porosity volcanic rock. <em>Scientific Reports</em>, 10, 5840.

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Reticulite-01_AxMF01.rar

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micro-XRCT data set in *.rek and *.tif file format of a dry cubic reticulite sample with about 10 mm side length. 1520 x 1520 x 1480 voxels by a uniform voxel size of 16.01 µm.

application/x-rar-compressed

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Reticulite-AxHP_wet_1ml.rar

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micro-XRCT data set in *.rek and *.tif file format of a cubic reticulite sample with about 12 mm side length saturated with 1 ml distilled water. 1520 x 1520 x 1554 voxels by a uniform voxel size of 12.85 µm.

application/x-rar-compressed

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Reticulite-AxHP_wet_500ul.rar

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micro-XRCT data set in *.rek and *.tif file format of a cubic reticulite sample with about 12 mm side length saturated with 500 µl distilled water. 1520 x 1520 x 1554 voxels by a uniform voxel size of 12.85 µm.

application/x-rar-compressed

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Reticulite-AxHP_wet_750ul.rar

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micro-XRCT data set in *.rek and *.tif file format of a cubic reticulite sample with about 12 mm side length saturated with 750 µl distilled water. 1520 x 1520 x 1554 voxels by a uniform voxel size of 12.85 µm.

application/x-rar-compressed

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Reticulite_03_AxMF01.rar

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micro-XRCT data set in *.rek and *.tif file format of a dry cubic reticulite sample with about 5 mm side length. 1520 x 1520 x 1522 voxels by a uniform voxel size of 4.49 µm.

application/x-rar-compressed

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Segmented_subsamples.rar

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Binarized subsamples of 400 x 400 x 400 voxels of "Reticulite-01_AxMF01" and "Reticulite_03_AxMF01" data sets in *.raw file format. A MATLAB script "ReadCTDataToMATLAB_simple.m" to read the data is attached.

application/x-rar-compressed