Conceptinformatie
Voorkeursterm
Porosity
Definitie
- 1. The porosity or void fraction is a measurement of the void or empty spaces of a material and is defined as the ratio between the volume of voids and the total volume. (Science direct, Direct Alcohol Fuel Cells for Portable Applications Fundamentals, Engineering and Advances 2018, Pages 113-155). 2. Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%. Strictly speaking, some tests measure the "accessible void", the total amount of void space accessible from the surface (cf. closed-cell foam). (Wikipedia). 3. Porosity determines reservoir storage capacity. It is defined as the ratio of void space, commonly called pore volume, to bulk volume and is reported either as a fraction or a percentage. Almost all hydrocarbon reservoirs are composed of sedimentary rocks in which porosity values generally vary from 10 to 40% in sandstones and from 5 to 25% in carbonates.(http://wiki.aapg.org/Porosity)
Breder concept
URI
https://purls.helmholtz-metadaten.de/evoks/sdv/Porosity
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