How to import pore network for obtaining the permeability

[Soheil1993]

Hello everyone,

I hope you are doing well.

I have modeled the compaction of sand particles in Yade and then I have extracted the pore networks (pore and throat data) of each iteration in both txt and vtk format. (It should be mentioned that I did not use PoreSpy and SNOW algorithm for this purpose)

Now I want to obtain the permeability of each of these networks.

Would you please let me know can I use openPNM for this purpose?

I would really appreciate it if you could provide me with further information regarding the importing of my pore networks to openPNM and obtaining the permeability.

I attached the results of one iteration for your kind consideration.

Many thanks in advance.

Best regards,
Soheil

yade-network-009000-throats.txt
yade-pores-009000.txt
vtk file.zip

[jgostick]

I don't think that permeability estimation is a good use of PNMs. You can do basic estimation, but it is a bit of an art to get a good prediction. PNMs are good for simulating more complex transport and multiphase flow, etc. Usually you ensure your extraction was good by making sure the PNM's permeability matches a known value.

You can predict the permeability of an image using LBM which is useful because no effort or thought is required to generate the mesh. Palabos is a good tool which we have used in the past.

[Soheil1993]

Dear Dr. @jgostick

Thank you very much for your kind reply and valuable information.

You are right. I am at the beginning of my project and I need just a basic estimation of permeability. Also, we considered that the media is fully saturated.

After that I will try to use the LBM model with Palabos.

I could find these examples, but I do not know if I can use them for my case or not.

In this case you used OpenPNM.Utilies.IO.Statoil class to import a network in ‘dat’ format.

(https://openpnm.org/examples/contrib/loading_statoil_finding_permeability.html)

and in these cases you imported the networks from the PoreSpy using SNOW algorithm.

https://github.com/PMEAL/OpenPNM/blob/dev/tests/integration/PoreSpyIO_on_Berea.py

https://openpnm.org/examples/contrib/predicting_effective_permeability_of_berea.html

Would you please let me know how I can import my ready pore network in txt or vtk file and then use these examples?

Best regards,
Soheil

[PratyushSwain101]

Mr. Soheil,
were you able to get the way to perform the permeability simulation using PNM?
\

[Soheil1993]

Unfortunately no. I am using YADE software and there is a possibility to use DEM–PFV for permeability measurement there.