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Modeling Subsurface Petroleum Hydrocarbon Transport

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Scanning electron micrographs of blobs show how branching of the blobs is possible. The Sevillita sand has a mean grain diameter of 300 microns, with a range of roughly 100 microns to 500 microns. So this sand is very uniform. The typical diameter of a blob is 100 microns which is less than the mean grain diamter of 300. The photos below and dimensions show variation in length, which for these blobs depends on the number of pore bodies occupied.

Length Number of Pore Bodies
Scanning electron micrographs of non-branching blob. 200 microns 1 pore body
Scanning electron micrographs of non-branching blob formed in two pore bodies. 400 microns 2 pore bodies
Scanning electron micrographs of non-branching blob formed in four pore bodies. 800 microns 4 pore bodies
Scanning electron micrographs of non-branching blob formed in six pore bodies. >800 microns 6 pore bodies

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