The US National Science Foundation-backed Digital Rocks Project has released a host of papers and YouTube interviews covering current projects. One notable presentation covers quantifying and segmenting sub-resolution porosity, said to be a bottleneck in porous media research. Researchers Shan Wang and Tom Bultreys from Ghent University present a novel rock typing technique that captures sub-resolution porosity. Watch the video here, download the paper here and visit the project home page.
Another project covers work on ‘unsteady-state capillary drainage experiments on the Estaillades carbonate combining differential imaging with pore network models in a rock-typing approach based on invasion-capillary pressure curves. The new technique is said to ‘outperformed classical porosity-based rock-typing’. The work leverages super high resolution micro-CT images (6.5 µ meters). The multi gigabyte datasets have been downloaded over 500 times.
Finally, another video features Ankita Singh’s work on Grayscale REV* Analysis. In a separate video Singh asks, ‘Are machines intelligent enough to infer REVs from raw µCT images?’ We skimmed through the video to find that the answer is, yes they are! The DRP authors also discuss image data formats used on the DRP. There is ‘no such thing as agreed upon data format in digital rock physics!’ A survey of all the files in the DRP found that TIF and RAW files were among the most popular file types across different projects. Tile types such as PNGs and JPEGs are also used to upload 2D slice data. Other file types are also used.
* representative elementary volume..
While the DRP newsletter is ‘new’ some of the project videos are a
couple of years old. Access the Digital Rocks Projects . You might also like to
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