Abstract：
:Pore network modeling (PNM) has been widely investigated in the study of multiphase transport in porous media due to its high computational efficiency. The advantage of PNM is achieved in part at the cost of using simplified geometrical elements. Therefore, the validation of pore network modeling needs further verification. A Shan-Chen (SC) multiphase lattice Boltzmann model (LBM) was used to simulate the multiphase flow and provided as the benchmark. PNM using different definitions of throat radius was performed and compared. The results showed that the capillary pressure and saturation curves agreed well when throat radius was calculated using the area-equivalent radius. The discrepancy of predicted phase occupations from different methods was compared in slice images and the reason can be attributed to the capillary pressure gradients demonstrated in LBM. Finally, the relative permeability was also predicted using PNM and provided acceptable predictions when compared with the results using single-phase LBM.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Huang X,Zhou W,Deng Ddoi
10.1038/s41598-020-74581-0subject
Has Abstractpub_date
2020-11-30 00:00:00pages
20852issue
1issn
2045-2322pii
10.1038/s41598-020-74581-0journal_volume
10pub_type
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