Experimental rock permeability data for illite-bearing Flechtinger sandstone measured with a flow-through apparatus at GFZ Potsdam
Cite as:
Cheng, Chaojie; Milsch, Harald (2020): Experimental rock permeability data for illite-bearing Flechtinger sandstone measured with a flow-through apparatus at GFZ Potsdam. GFZ Data Services. https://doi.org/10.5880/GFZ.4.8.2020.005
Status
I N R E V I E W : Cheng, Chaojie; Milsch, Harald (2020): Experimental rock permeability data for illite-bearing Flechtinger sandstone measured with a flow-through apparatus at GFZ Potsdam. GFZ Data Services. https://doi.org/10.5880/GFZ.4.8.2020.005
Abstract
Temperature changes and variations in pore fluid salinity may negatively affect the permeability of clay‐bearing sandstones with implications for natural fluid flow and geotechnical applications alike. Cheng and Milsch (2020) investigated these factors for a sandstone dominated by illite as the clay phase.
Flechtinger sandstone, a Lower Permian (Upper Rotliegend) sedimentary rock outcropping and commercially mined at the Sventesius Quarry near Flechtingen, Germany, was selected for the experiments. Three cylindrical cores were drilled from a larger block. Subsequently, samples were prepared with polished and plane-parallel end faces having a diameter of 30 mm and a length of 40 mm. The three samples were labelled FS1, FS3, and FS4, respectively. The three samples were vacuum-dried in an oven at 60 °C for 24 hours. They were then set under vacuum in a desiccator chamber for 10 hours and saturated with deionized water for another 24 hours.
All experiments were performed with two flow-through apparatuses with details described in Milsch et al. (2008). The saturated sample is jacketed with a Fluorinated Ethylene Propylene (FEP) heat shrink tubing and is then mounted in the vessel. Afterwards, the two sample ends are connected to the upstream and downstream pumps, respectively. The flow direction, generally, is from the bottom to the top side of the sample but can be reversed for return permeability measurements.
Authors
Cheng, Chaojie;GFZ German Research Centre for Geosciences, Potsdam, Germany
Milsch, Harald;GFZ German Research Centre for Geosciences, Potsdam, Germany
Contact
Milsch, Harald
(Senior Scientist); GFZ German Research Centre for Geosciences, Potsdam, Germany;
Funders
China Scholarship Council (201606410056)
Bundesministerium für Wirtschaft und Energie (0324065)
Keywords
permeability, sandstone, flow-through experiments, compound material > sedimentary material > sedimentary rock > generic sandstone > sandstone, physical property > permeability
affiliation (affiliationIdentifier=0000-0002-8751-5546 affiliationIdentifierScheme=ORCID): GFZ German Research Centre for Geosciences, Potsdam, Germany
affiliation (affiliationIdentifier=0000-0002-5915-5862 affiliationIdentifierScheme=ORCID): GFZ German Research Centre for Geosciences, Potsdam, Germany
titles
title: Experimental rock permeability data for illite-bearing Flechtinger sandstone measured with a flow-through apparatus at GFZ Potsdam
publisher: GFZ Data Services
publicationYear: 2020
subjects
subject: permeability
subject: sandstone
subject: flow-through experiments
subject (subjectScheme=CGI Simple Lithology): compound material > sedimentary material > sedimentary rock > generic sandstone > sandstone
CharacterString: Temperature changes and variations in pore fluid salinity may negatively affect the permeability of clay‐bearing sandstones with implications for natural fluid flow and geotechnical applications alike. Cheng and Milsch (2020) investigated these factors for a sandstone dominated by illite as the clay phase.
Flechtinger sandstone, a Lower Permian (Upper Rotliegend) sedimentary rock outcropping and commercially mined at the Sventesius Quarry near Flechtingen, Germany, was selected for the experiments. Three cylindrical cores were drilled from a larger block. Subsequently, samples were prepared with polished and plane-parallel end faces having a diameter of 30 mm and a length of 40 mm. The three samples were labelled FS1, FS3, and FS4, respectively. The three samples were vacuum-dried in an oven at 60 °C for 24 hours. They were then set under vacuum in a desiccator chamber for 10 hours and saturated with deionized water for another 24 hours.
All experiments were performed with two flow-through apparatuses with details described in Milsch et al. (2008). The saturated sample is jacketed with a Fluorinated Ethylene Propylene (FEP) heat shrink tubing and is then mounted in the vessel. Afterwards, the two sample ends are connected to the upstream and downstream pumps, respectively. The flow direction, generally, is from the bottom to the top side of the sample but can be reversed for return permeability measurements.
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;GFZ German Research Centre for Geosciences, Potsdam, Germany
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